/* roulang page: index */
:root {
    --c-primary: #1D6B93;
    --c-primary-dark: #15506F;
    --c-primary-soft: #EAF3F8;
    --c-bg: #F5F9FC;
    --c-card: #FFFFFF;
    --c-text: #23343F;
    --c-text-light: #5B6C78;
    --c-text-faint: #94A3AE;
    --c-success: #417163;
    --c-accent: #C47B4A;
    --c-border: #DCE7EE;
    --radius-input: 8px;
    --radius-btn: 10px;
    --radius-card: 16px;
    --shadow-card: 0 2px 6px rgba(23, 61, 85, 0.04), 0 12px 28px rgba(23, 61, 85, 0.07);
    --shadow-hover: 0 6px 12px rgba(23, 61, 85, 0.08), 0 18px 40px rgba(23, 61, 85, 0.12);
    --transition: all .22s ease;
}
*, *::before, *::after {
    box-sizing: border-box;
}
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
body, .reveal, .site-header, .post-item, .faq-item { font-family: inherit; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input, select, textarea { font-family: inherit; }
input, select, textarea { font-size: 15px; color: var(--c-text); }
::placeholder { color: #9AA8B2; opacity: 1; }
button { border: 0; cursor: pointer; background: transparent; }
:focus-visible { outline: 3px solid rgba(29, 107, 147, 0.32); outline-offset: 2px; border-radius: 4px; }
.site-container, .container, .grid-container { max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 14px 26px;
    border-radius: var(--radius-btn);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    background: transparent;
    transition: var(--transition);
}
.btn i { font-size: 15px; }
.btn-primary {
    background: var(--c-primary);
    color: #fff;
    box-shadow: 0 8px 18px rgba(29, 107, 147, 0.18);
}
.btn-primary:hover { background: var(--c-primary-dark); color: #fff; box-shadow: 0 12px 24px rgba(29, 107, 147, 0.22); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 10px rgba(29, 107, 147, 0.18); }
.btn-outline {
    border: 1.5px solid var(--c-primary);
    color: var(--c-primary);
    background: #fff;
}
.btn-outline:hover { background: rgba(29, 107, 147, 0.07); color: var(--c-primary-dark); border-color: var(--c-primary-dark); }
.btn-ghost { padding: 8px 4px; color: var(--c-primary); min-height: auto; font-weight: 600; }
.btn-ghost i { margin-left: 6px; transition: transform .2s ease; }
.btn-ghost:hover i { transform: translateX(3px); }

/* ---------- header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 110;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(220, 231, 238, .9);
    box-shadow: 0 2px 10px rgba(20, 52, 72, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.site-header.is-scrolled { box-shadow: 0 8px 26px rgba(26, 66, 90, 0.09); }
.header-main {
    height: 72px;
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
    width: 38px; height: 38px;
    border-radius: 11px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    border: 1px solid rgba(29, 107, 147, 0.12);
}
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name-zh { font-size: 19px; font-weight: 700; color: #172F3B; letter-spacing: .01em; }
.brand-name-en { font-size: 11px; font-weight: 400; color: var(--c-text-faint); letter-spacing: .03em; text-transform: lowercase; margin-top: 4px; }
.desktop-nav ul { list-style: none; display: flex; align-items: center; gap: 32px; margin: 0; padding: 0; }
.desktop-nav a { position: relative; padding: 8px 0 12px; font-size: 15px; font-weight: 500; color: var(--c-text-light); }
.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    border-radius: 6px 6px 0 0;
    background: var(--c-primary);
    opacity: 0;
    transform: scaleX(.5);
    transition: var(--transition);
}
.desktop-nav li:hover a { color: var(--c-primary); }
.desktop-nav li.is-current a { color: var(--c-primary); font-weight: 600; }
.desktop-nav li.is-current a::after { opacity: 1; transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav-search {
    position: relative;
    display: flex;
    align-items: center;
    width: 210px;
    max-width: 100%;
}
.nav-search i {
    position: absolute;
    left: 13px;
    color: var(--c-text-faint);
    pointer-events: none;
    font-size: 14px;
    transition: color .2s ease;
}
.nav-search input {
    width: 100%;
    height: 40px;
    border: 1px solid #D2DDE3;
    border-radius: var(--radius-btn);
    background: #F8FAFC;
    padding: 0 14px 0 36px;
    font-size: 14px;
    transition: var(--transition);
}
.nav-search input:hover { border-color: rgba(29, 107, 147, 0.35); }
.nav-search input:focus { outline: 0; border-color: var(--c-primary); background: #fff; box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.14); }
.nav-login {
    font-size: 15px;
    font-weight: 500;
    color: var(--c-text-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
}
.nav-login:hover { color: var(--c-primary); }
.btn-header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 6px 16px rgba(29, 107, 147, 0.2);
    transition: var(--transition);
}
.btn-header-cta:hover { background: var(--c-primary-dark); color: #fff; transform: translateY(-1px); }
.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    color: var(--c-text);
    background: var(--c-bg);
    font-size: 18px;
}
.mobile-nav {
    display: none;
    max-height: 0;
    overflow: hidden;
    background: #fff;
    border-top: 0 solid transparent;
    transition: max-height .25s ease, padding .25s ease;
}
.mobile-nav.is-open { max-height: 86vh; overflow-y: auto; border-top: 1px solid var(--c-border); box-shadow: 0 18px 24px rgba(23, 61, 85, 0.08); }
.mobile-nav-inner { padding: 14px 24px 26px; }
.mobile-nav-list { list-style: none; margin: 0; padding: 0; }
.mobile-nav-list li + li { border-top: 1px solid #EDF2F5; }
.mobile-nav-list a { display: flex; align-items: center; justify-content: space-between; min-height: 50px; font-size: 16px; font-weight: 500; color: var(--c-text); }
.mobile-nav-list li.is-current a { color: var(--c-primary); font-weight: 600; }
.mobile-nav-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 18px; padding-top: 16px; border-top: 1px solid #EDF2F5; }
.mobile-nav-actions .btn { width: calc(50% - 8px); min-height: 46px; padding: 0 14px; font-size: 15px; }
.mobile-nav-search { position: relative; margin: 12px 0 18px; }
.mobile-nav-search i { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--c-text-faint); font-size: 14px; }
.mobile-nav-search input { width: 100%; height: 46px; border: 1px solid var(--c-border); border-radius: 10px; background: #F8FAFC; padding: 0 16px 0 42px; font-size: 15px; }

/* ---------- hero ---------- */
.hero {
    position: relative;
    min-height: 80vh;
    min-height: 640px;
    display: flex;
    align-items: center;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, .94) 0%, rgba(255, 255, 255, .78) 46%, rgba(255, 255, 255, .32) 100%),
        url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    padding: 80px 0 68px;
}
.hero-content { max-width: 760px; }
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .88);
    border: 1px solid var(--c-border);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    color: var(--c-primary-dark);
    font-weight: 500;
    margin-bottom: 22px;
}
.hero-tag i { font-size: 12px; color: var(--c-primary); }
.hero h1 {
    font-size: 40px;
    line-height: 1.3;
    font-weight: 700;
    color: #172F3B;
    letter-spacing: -.01em;
    margin: 0 0 20px;
    max-width: 660px;
}
.hero-sub {
    font-size: 17px;
    line-height: 1.85;
    color: var(--c-text-light);
    max-width: 620px;
    margin: 0 0 34px;
}
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-cta .btn { min-height: 52px; padding-left: 30px; padding-right: 30px; }
.hero-trust { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 54px; }
.trust-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, .72);
    border: 1px solid rgba(220, 231, 238, .9);
    border-radius: 999px;
    color: var(--c-text-light);
    font-size: 13px;
    backdrop-filter: blur(6px);
}
.trust-chip i { color: var(--c-success); font-size: 13px; }

/* ---------- section base ---------- */
.section { padding: 100px 0; }
.section-soft { background: linear-gradient(180deg, var(--c-bg) 0%, #fff 100%); }
.section-head { margin-bottom: 44px; }
.section-head.row-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.title-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-primary);
    letter-spacing: .04em;
    margin-bottom: 12px;
}
.title-kicker::before { content: ""; width: 34px; height: 4px; border-radius: 4px; background: var(--c-primary); }
.section-title {
    font-size: 31px;
    line-height: 1.35;
    font-weight: 700;
    color: var(--c-text);
    margin: 0;
    letter-spacing: -.01em;
}
.section-desc { max-width: 680px; font-size: 16px; color: var(--c-text-light); line-height: 1.8; margin-top: 14px; }
.section-link { white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; color: var(--c-primary); }
.section-link:hover i { transform: translateX(3px); }
.section-link i { transition: transform .2s ease; }

/* ---------- service cards ---------- */
.service-grid { display: grid; grid-template-columns: 1fr 1.08fr; grid-auto-rows: auto; gap: 28px; }
.svc-card {
    display: flex;
    flex-direction: column;
    background: var(--c-card);
    border: 1px solid rgba(220, 231, 238, .8);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform .22s ease, box-shadow .22s ease;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card { grid-column: 1 / 2; grid-row: 1 / 3; min-height: 580px; }
.card-media { position: relative; background: var(--c-primary-soft); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.feature-card .card-media { height: 282px; }
.svc-card:hover .card-media img { transform: scale(1.035); }
.card-media .badge {
    position: absolute;
    left: 18px; top: 18px;
    background: rgba(29, 107, 147, 0.16);
    color: var(--c-primary-dark);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, .6);
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(29, 107, 147, .1);
    color: var(--c-primary-dark);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
}
.card-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.rc-card .card-body { padding: 24px; }
.card-icon {
    width: 42px; height: 42px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    font-size: 18px;
    margin-bottom: 16px;
    border: 1px solid rgba(29, 107, 147, 0.08);
}
.svc-card h3 { font-size: 21px; line-height: 1.35; margin: 0 0 10px; font-weight: 700; color: var(--c-text); }
.rc-card h3 { font-size: 19px; }
.card-desc { font-size: 15px; line-height: 1.8; color: var(--c-text-light); margin-bottom: 16px; flex: 1; }
.card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--c-primary); font-weight: 600; font-size: 15px; margin-top: auto; }
.card-link i { transition: transform .2s; }
.card-link:hover i { transform: translateX(4px); }
.rc-grid { grid-column: 2 / 3; display: grid; grid-template-rows: 1fr 1fr; gap: 28px; }
.rc-card { min-height: 240px; }
.rc-card.is-promo { border-top: 4px solid var(--c-accent); }
.rc-card .card-media { height: 128px; }

/* ---------- data ---------- */
.stats-panel {
    position: relative;
    background: linear-gradient(180deg, #FFFFFF 0%, var(--c-primary-soft) 100%);
    border: 1px solid rgba(29, 107, 147, 0.12);
    border-radius: 22px;
    padding: 54px 56px;
    overflow: hidden;
}
.stats-panel::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--c-primary); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; margin-top: 20px; }
.stat-item { position: relative; padding-right: 20px; }
.stat-item + .stat-item { border-left: 1px solid rgba(29, 107, 147, .1); padding-left: 36px; }
.stat-value {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.12;
    color: var(--c-primary);
    letter-spacing: -.02em;
    margin: 0 0 12px;
    font-variant-numeric: tabular-nums;
}
.stat-value .mono { font-size: 28px; }
.stat-label { font-size: 14px; color: var(--c-text-light); margin: 0 0 8px; font-weight: 500; }
.stat-extra { font-size: 13px; color: var(--c-text-faint); margin: 0; line-height: 1.6; }
.stat-divider { width: 32px; height: 2px; background: var(--c-success); margin: 14px 0 12px; border: 0; }
.data-foot { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; border-top: 1px solid rgba(29, 107, 147, 0.12); margin-top: 40px; padding-top: 22px; }
.data-foot p { margin: 0; font-size: 13px; color: var(--c-text-faint); }
.data-foot-link { color: var(--c-primary); font-weight: 600; font-size: 14px; }

/* ---------- steps ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 44px; margin-top: 10px; }
.step-item { position: relative; }
.step-item + .step-item::before { content: ""; position: absolute; left: -24px; top: 24px; width: 16px; height: 1px; background: #CCDAE2; }
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    border-radius: 16px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 20px;
    border: 1px solid rgba(29, 107, 147, 0.1);
}
.step-item h3 { font-size: 17px; font-weight: 700; margin: 0 0 8px; }
.step-item p { font-size: 14px; line-height: 1.8; color: var(--c-text-light); margin: 0; }

/* ---------- latest / cms ---------- */
.latest-section { background: #F1F7FA; }
.latest-tabs { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tab-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--c-border);
    background: #fff;
    color: var(--c-text-light);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}
.tab-pill.active, .tab-pill:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.post-list { margin-top: 34px; }
.post-item {
    background: #fff;
    border: 1px solid rgba(220, 231, 238, .85);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 22px;
    padding: 18px;
    margin-bottom: 20px;
    transition: transform .22s ease, box-shadow .22s ease;
}
.post-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.post-media { border-radius: 12px; overflow: hidden; background: var(--c-primary-soft); min-height: 140px; display: flex; }
.post-media img { width: 100%; height: 100%; object-fit: cover; min-height: 140px; }
.post-info { padding: 4px 4px 4px 0; display: flex; flex-direction: column; justify-content: center; }
.post-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--c-text-faint); margin-bottom: 10px; }
.post-cat { display: inline-flex; align-items: center; background: rgba(29, 107, 147, .1); color: var(--c-primary-dark); border-radius: 999px; padding: 2px 10px; font-weight: 600; font-size: 12px; }
.post-info h3 { font-size: 18px; line-height: 1.45; font-weight: 700; margin: 0 0 8px; color: var(--c-text); }
.post-info h3 a { transition: var(--transition); }
.post-info h3 a:hover { color: var(--c-primary); }
.post-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--c-text-light);
    margin: 0 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.post-more { font-size: 13px; font-weight: 600; color: var(--c-primary); display: inline-flex; align-items: center; gap: 6px; }
.post-more i { transition: transform .2s; }
.post-more:hover i { transform: translateX(3px); }
.empty-state { background: #fff; border: 1px dashed #C8D6DE; color: var(--c-text-faint); border-radius: 16px; padding: 58px 24px; text-align: center; font-size: 15px; }
.empty-state i { font-size: 28px; display: block; margin-bottom: 12px; color: #B9C9D3; }
.latest-foot { display: flex; justify-content: center; margin-top: 20px; }

/* ---------- FAQ ---------- */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; perspective: 1000px; }
.faq-item { background: #fff; border: 1px solid var(--c-border); border-radius: 16px; overflow: hidden; }
.faq-item[open] { border-color: rgba(29, 107, 147, .45); box-shadow: var(--shadow-card); }
.faq-summary { list-style: none; display: flex; align-items: center; gap: 16px; padding: 22px 24px; cursor: pointer; }
.faq-summary::-webkit-details-marker { display: none; }
.faq-summary .faq-icon {
    width: 30px; height: 30px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    font-size: 14px;
    transition: transform .22s ease, background .22s ease;
}
.faq-item[open] .faq-summary .faq-icon { transform: rotate(135deg); background: rgba(29, 107, 147, .14); color: var(--c-primary-dark); }
.faq-summary h3 { font-size: 16px; font-weight: 600; line-height: 1.55; margin: 0; color: var(--c-text); padding-right: 8px; }
.faq-answer { padding: 0 24px 22px 70px; font-size: 14px; line-height: 1.8; color: var(--c-text-light); border-top: 1px solid #EDF2F5; margin-top: -4px; padding-top: 10px; }
.faq-answer p { margin: 0; }

/* ---------- cta ---------- */
.cta-panel {
    border-radius: 22px;
    background: linear-gradient(125deg, #FFFFFF 20%, var(--c-primary-soft) 100%);
    border: 1px solid rgba(29, 107, 147, 0.12);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}
.cta-left { flex: 1 1 480px; }
.cta-title { font-size: 25px; font-weight: 700; color: var(--c-text); margin: 0 0 12px; }
.cta-desc { font-size: 15px; line-height: 1.8; color: var(--c-text-light); margin: 0 0 18px; max-width: 670px; }
.cta-btn-wrap { flex-shrink: 0; }
.cta-btn-wrap .btn { min-width: 220px; min-height: 54px; }
.privacy-note { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--c-text-faint); margin-top: 16px; }
.privacy-note i { color: var(--c-text-faint); font-size: 12px; }

/* ---------- footer ---------- */
.site-footer {
    background: #132A38;
    color: rgba(255, 255, 255, .76);
    border-top: 3px solid var(--c-primary);
    padding: 62px 0 0;
}
.footer-main { display: grid; grid-template-columns: 2.1fr repeat(4, 1fr); gap: 32px; padding-bottom: 46px; }
.footer-brand-box .brand { color: #fff; margin-bottom: 14px; }
.footer-brand-box .brand-mark { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .12); color: #fff; }
.footer-brand-box .brand-name-zh { color: #fff; }
.footer-brand-box .brand-name-en { color: rgba(255, 255, 255, .56); }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .58); margin: 0; max-width: 310px; }
.footer-group h3 { color: #fff; font-size: 14px; font-weight: 600; margin: 10px 0 16px; }
.footer-group ul { list-style: none; margin: 0; padding: 0; }
.footer-group li { margin-bottom: 10px; }
.footer-group a { color: rgba(255, 255, 255, .64); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }
.footer-group a i { font-size: 11px; color: rgba(255, 255, 255, .32); transition: color .2s; }
.footer-group a:hover { color: #fff; }
.footer-group a:hover i { color: var(--c-primary); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 24px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: rgba(255, 255, 255, .44); font-size: 12px; }
.footer-bottom .footer-tech { color: rgba(255, 255, 255, .65); }
.footer-bottom .footer-tech span { margin-left: 16px; }

/* ---------- reveal ---------- */
.reveal-overlay { background: rgba(15, 33, 45, 0.52); backdrop-filter: blur(3px); }
.reveal {
    border: 0;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 32px 70px rgba(12, 33, 46, 0.26);
    padding: 36px 36px 28px;
    max-width: 540px;
    width: calc(100% - 40px);
}
.reveal.is-open { top: 50% !important; left: 50%; transform: translate(-50%, -50%); margin: 0; }
.reveal-content h3 { font-size: 24px; font-weight: 700; margin: 0 0 8px; color: var(--c-text); }
.reveal-sub { font-size: 14px; color: var(--c-text-light); margin-bottom: 22px; }
.reveal-content .close-button {
    position: absolute;
    right: 16px; top: 16px;
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--c-bg);
    color: var(--c-text-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    line-height: 1;
    transition: var(--transition);
}
.reveal-content .close-button:hover { background: rgba(29, 107, 147, .12); color: var(--c-primary); }
.reveal-form-group { margin-bottom: 18px; }
.reveal-form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--c-text); margin-bottom: 7px; }
.reveal-form-group input[type="text"], .reveal-form-group input[type="password"], .reveal-form-group input[type="tel"], .reveal-form-group textarea {
    width: 100%;
    height: 48px;
    border: 1px solid #D2DDE3;
    border-radius: var(--radius-input);
    padding: 0 14px;
    font-size: 15px;
    outline: none;
    background: #FBFCFD;
    transition: var(--transition);
}
.reveal-form-group textarea { padding-top: 12px; min-height: 104px; resize: vertical; }
.reveal-form-group input:focus, .reveal-form-group textarea:focus { background: #fff; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(29, 107, 147, .13); }
.reveal-submit { width: 100%; min-height: 50px; margin-top: 6px; }
.reveal-privacy { display: flex; align-items: flex-start; gap: 6px; margin-top: 18px; color: var(--c-text-faint); font-size: 12px; line-height: 1.7; }
.reveal-privacy i { margin-top: 3px; }
.reveal-forgot { display: inline-flex; justify-content: flex-end; font-size: 13px; color: var(--c-text-faint); }
.reveal-forgot a { color: var(--c-primary); font-weight: 600; }
.login-reveal { max-width: 420px; }
.login-fields { margin-top: 6px; }

/* ---------- responsive ---------- */
@media (max-width: 1023px) {
    .section { padding: 88px 0; }
    .desktop-nav { display: none; }
    .menu-toggle { display: inline-flex; }
    .mobile-nav { display: block; }
    .btn-header-cta { padding: 0 18px; }
    .nav-search { width: 170px; }
    .service-grid { grid-template-columns: 1fr; }
    .feature-card { grid-column: auto; grid-row: auto; min-height: auto; }
    .rc-grid { grid-column: auto; grid-template-columns: 1fr; grid-template-rows: auto; }
    .rc-card .card-media { height: 180px; }
    .stats-grid { gap: 20px; }
    .stat-value { font-size: 38px; }
    .footer-main { grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
}
@media (max-width: 900px) {
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 22px; }
    .step-item:nth-child(2)::before { opacity: 0; }
    .faq-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 34px; }
    .section-title { font-size: 28px; }
    .footer-main { grid-template-columns: 1fr 1fr; }
    .footer-brand-box { grid-column: 1 / 3; }
}
@media (max-width: 768px) {
    .section { padding: 70px 0; }
    .site-container, .container, .grid-container { padding-left: 18px; padding-right: 18px; }
    .header-main { gap: 12px; min-height: 64px; }
    .brand-name-en { display: none; }
    .brand-name-zh { font-size: 17px; }
    .brand-mark { width: 34px; height: 34px; font-size: 16px; border-radius: 10px; }
    .header-actions { gap: 8px; }
    .nav-search, .nav-login { display: none; }
    .btn-header-cta { min-height: 42px; padding: 0 14px; font-size: 14px; }
    .hero { min-height: auto; padding: 84px 0 60px; background-position: 65% center; }
    .hero h1 { font-size: 29px; }
    .hero-sub { font-size: 15px; }
    .hero-trust { gap: 10px; margin-top: 34px; }
    .hero-cta .btn { min-height: 48px; width: 100%; }
    .trust-chip { width: 100%; justify-content: center; }
    .section-head.row-head { flex-direction: column; align-items: flex-start; }
    .service-grid { gap: 16px; }
    .card-body, .rc-card .card-body { padding: 22px; }
    .feature-card .card-media { height: 220px; }
    .rc-card .card-media { height: 150px; }
    .stats-panel { padding: 40px 28px; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
    .stat-item + .stat-item { border-left: 0; padding-left: 0; }
    .stat-value { font-size: 34px; }
    .data-foot { justify-content: center; text-align: center; }
    .steps-grid { grid-template-columns: 1fr; gap: 24px; }
    .step-item + .step-item::before { display: none; }
    .step-item { display: flex; align-items: flex-start; gap: 15px; }
    .step-num { width: 42px; height: 42px; border-radius: 12px; margin-bottom: 0; flex-shrink: 0; }
    .post-item { grid-template-columns: 1fr; padding: 14px; gap: 12px; }
    .post-media { max-height: 190px; }
    .post-media img { height: 100%; }
    .post-info h3 { font-size: 16px; }
    .cta-panel { padding: 34px 24px; }
    .cta-btn-wrap { width: 100%; }
    .cta-btn-wrap .btn { width: 100%; }
    .footer-main { grid-template-columns: 1fr; }
    .footer-brand-box { grid-column: auto; }
    .site-footer { padding-top: 44px; }
    .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
    .reveal { max-width: 100%; padding: 28px 22px; }
}
@media (max-width: 520px) {
    .section { padding: 60px 0; }
    .hero { padding: 62px 0 44px; }
    .hero-tag { font-size: 12px; }
    .hero h1 { font-size: 25px; line-height: 1.38; }
    .hero-sub { font-size: 14px; line-height: 1.75; }
    .btn-header-cta { font-size: 13px; padding: 0 12px; }
    .section-title { font-size: 23px; }
    .title-kicker { font-size: 12px; }
    .section-head { margin-bottom: 32px; }
    .brand-mark { width: 32px; height: 32px; }
    .card-body h3 { font-size: 18px; }
    .stats-grid { grid-template-columns: 1fr; }
    .stats-panel { padding: 34px 22px; }
    .stat-value { font-size: 40px; }
    .stat-item { padding-right: 0; }
    .faq-answer { padding-left: 22px; }
    .faq-summary { padding: 16px 16px; }
    .faq-summary h3 { font-size: 15px; }
    .footer-bottom { font-size: 12px; }
}

/* roulang page: article */
:root {
    --brand: #1d6b93;
    --brand-dark: #15506f;
    --brand-light: #eaf3f8;
    --brand-soft: #edf5fa;
    --accent-green: #417163;
    --page-bg: #f5f9fc;
    --card-bg: #ffffff;
    --text-main: #23343f;
    --text-sub: #5b6c78;
    --text-weak: #94a3ae;
    --border: #d9e4eb;
    --border-light: #e7eef3;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --shadow-card: 0 2px 6px rgba(23, 61, 85, .04), 0 12px 28px rgba(23, 61, 85, .07);
    --shadow-hover: 0 6px 12px rgba(23, 61, 85, .08), 0 18px 40px rgba(23, 61, 85, .12);
    --shadow-btn: 0 8px 18px rgba(29, 107, 147, .20);
    --header-h: 68px;
    --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: inline-block;
    vertical-align: middle;
}

a {
    color: var(--brand);
    text-decoration: none;
    transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

a:hover,
a:focus {
    color: var(--brand-dark);
    outline: none;
}

button,
input,
select,
textarea {
    font-family: var(--font-family);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid rgba(29, 107, 147, .28);
    outline-offset: 2px;
}

.grid-container {
    max-width: 1200px;
    padding-left: 24px;
    padding-right: 24px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 900;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(217, 228, 235, .75);
    box-shadow: 0 1px 2px rgba(23, 61, 85, .02);
    transition: box-shadow .25s ease;
}

.site-header.scrolled {
    box-shadow: 0 8px 24px rgba(23, 61, 85, .08);
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-h);
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--brand-light);
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.brand-name {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.15;
    gap: 2px;
}

.brand-name-zh {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: .5px;
    white-space: nowrap;
}

.brand-name-en {
    font-size: 11px;
    color: var(--text-weak);
    letter-spacing: .3px;
    font-weight: 400;
    text-transform: uppercase;
}

.desktop-nav {
    margin-left: auto;
    margin-right: 12px;
}

.desktop-nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
    gap: 7px;
}

.desktop-nav ul li {
    position: relative;
}

.desktop-nav ul li a {
    display: inline-flex;
    align-items: center;
    height: var(--header-h);
    padding: 0 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-sub);
    position: relative;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
}

.desktop-nav ul li a:hover {
    color: var(--brand);
}

.desktop-nav ul li.is-current a {
    color: var(--brand);
    font-weight: 600;
    border-bottom-color: var(--brand);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-search {
    position: relative;
    width: 180px;
    transition: width .28s ease;
}

.nav-search:focus-within {
    width: 240px;
}

.nav-search i {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-weak);
    font-size: 14px;
    pointer-events: none;
    transition: left .2s ease, color .2s ease;
}

.nav-search input {
    width: 100%;
    height: 38px;
    padding: 0 13px 0 36px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #f8fbfd;
    color: var(--text-main);
    font-size: 14px;
    transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.nav-search input::placeholder {
    color: var(--text-weak);
}

.nav-search input:hover {
    border-color: rgba(29, 107, 147, .3);
}

.nav-search input:focus {
    outline: none;
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(29, 107, 147, .13);
}

.nav-login {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-sub);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.nav-login:hover {
    color: var(--brand);
    background: var(--brand-light);
}

.btn-header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 22px;
    background: var(--brand);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    box-shadow: var(--shadow-btn);
    white-space: nowrap;
    transition: all .22s ease;
}

.btn-header-cta:hover,
.btn-header-cta:focus {
    color: #fff;
    background: var(--brand-dark);
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(21, 80, 111, .25);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
    background: #fff;
    color: var(--text-main);
    border-radius: 10px;
    font-size: 18px;
    cursor: pointer;
}

.mobile-nav {
    display: none;
    background: #fff;
    border-top: 1px solid var(--border-light);
    box-shadow: 0 16px 28px rgba(23, 61, 85, .12);
}

.mobile-nav.open {
    display: block;
}

.mobile-nav-inner {
    padding: 16px 24px 24px;
}

.mobile-nav-search {
    position: relative;
    margin-bottom: 12px;
}

.mobile-nav-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-weak);
    font-size: 15px;
}

.mobile-nav-search input {
    width: 100%;
    height: 46px;
    padding: 0 14px 0 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px;
    background: #f8fbfd;
}

.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-list li + li {
    border-top: 1px solid var(--border-light);
}

.mobile-nav-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
    font-size: 15px;
    color: var(--text-main);
    font-weight: 500;
}

.mobile-nav-list a i {
    color: var(--text-weak);
    font-size: 12px;
}

.mobile-nav-list li.is-current a {
    color: var(--brand);
    font-weight: 600;
}

.mobile-nav-login {
    margin-top: 14px;
    display: flex;
}

.mobile-nav-login a {
    flex: 1;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid var(--brand);
    border-radius: var(--radius-md);
    color: var(--brand);
    font-weight: 600;
    font-size: 15px;
    background: #fff;
}

.site-footer {
    background: #102a39;
    border-top: 3px solid var(--brand);
    margin-top: 90px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr 0.85fr 0.85fr;
    gap: 44px;
    padding: 58px 0 42px;
}

.footer-brand-box .brand .brand-name-zh {
    color: #fff;
}

.footer-brand-box .brand .brand-mark {
    background: rgba(255, 255, 255, .1);
    color: #bcd7e7;
}

.footer-desc {
    margin: 18px 0 0;
    max-width: 330px;
    color: rgba(255, 255, 255, .68);
    font-size: 14px;
    line-height: 1.8;
}

.footer-group h3 {
    margin: 0 0 15px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
}

.footer-group ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-group li + li {
    margin-top: 9px;
}

.footer-group li a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
}

.footer-group li a i {
    font-size: 10px;
    color: rgba(255, 255, 255, .35);
    transition: transform .2s ease;
}

.footer-group li a:hover {
    color: #fff;
}

.footer-group li a:hover i {
    transform: translateX(3px);
    color: var(--brand);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .12);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, .5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, .7);
}

.footer-bottom .site-domain {
    letter-spacing: .3px;
}

.article-intro {
    background: linear-gradient(90deg, rgba(245, 249, 252, .96), rgba(245, 249, 252, .55)), url('/assets/images/backpic/back-2.webp') center 20% / cover no-repeat;
    border-bottom: 1px solid var(--border-light);
    padding: 38px 0 0;
}

.breadcrumb-wrap {
    padding: 18px 0 0;
}

.breadcrumb {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--text-sub);
}

.breadcrumb a:hover {
    color: var(--brand);
}

.breadcrumb i {
    color: var(--text-weak);
    font-size: 12px;
}

.breadcrumb span {
    color: var(--text-weak);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 300px;
}

.article-page-main {
    padding: 38px 0 0;
    background: var(--page-bg);
}

.article-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: var(--shadow-card);
    padding: 36px 40px 42px;
    border: 1px solid rgba(255, 255, 255, .8);
    position: relative;
}

.article-header h1 {
    font-size: 30px;
    line-height: 1.4;
    font-weight: 700;
    color: var(--text-main);
    margin: 8px 0 20px;
    letter-spacing: .3px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 18px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-sub);
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--brand-light);
    color: var(--brand);
    font-weight: 500;
}

.meta-pill i {
    font-size: 11px;
}

.meta-source {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.meta-source i {
    color: var(--accent-green);
    font-size: 13px;
}

.article-body {
    padding-top: 22px;
    color: #2c3d47;
}

.article-body > p {
    margin: 0 0 1.2em;
    font-size: 16px;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 24px;
    line-height: 1.45;
    margin: 1.7em 0 .7em;
    color: var(--text-main);
    font-weight: 700;
    padding-top: 8px;
}

.article-body h3 {
    font-size: 20px;
    line-height: 1.45;
    margin: 1.5em 0 .6em;
    color: var(--text-main);
    font-weight: 600;
}

.article-body h4 {
    font-size: 17px;
    margin: 1.3em 0 .5em;
    color: var(--text-main);
    font-weight: 600;
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.4em;
    padding-left: 22px;
}

.article-body li {
    margin-bottom: .5em;
    line-height: 1.8;
}

.article-body img {
    border-radius: 12px;
    margin: 18px 0 26px;
    box-shadow: var(--shadow-card);
}

.article-body a {
    color: var(--brand);
    text-decoration: underline;
    text-decoration-color: rgba(29, 107, 147, .2);
    text-underline-offset: 4px;
}

.article-body a:hover {
    text-decoration-color: var(--brand);
}

.article-body blockquote {
    margin: 1.6em 0;
    padding: 14px 22px;
    border-left: 4px solid var(--brand);
    background: var(--brand-soft);
    border-radius: 0 12px 12px 0;
    color: var(--text-sub);
    font-size: 15px;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0 32px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    font-size: 15px;
}

.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}

.article-body th {
    background: var(--brand-light);
    color: var(--brand-dark);
    font-weight: 600;
}

.article-body td {
    color: var(--text-main);
    line-height: 1.7;
}

.article-body pre {
    margin: 20px 0 28px;
    padding: 18px 20px;
    background: #20303a;
    color: #eff4f7;
    border-radius: 12px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.7;
}

.article-footer {
    margin-top: 32px;
    border-top: 1px solid var(--border-light);
    padding-top: 22px;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

.tag-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 13px;
    background: var(--brand-light);
    color: var(--brand);
    border-radius: 999px;
    font-weight: 500;
}

.article-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 24px;
}

.action-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text-sub);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 15px;
    transition: all .2s ease;
}

.icon-btn:hover {
    color: var(--brand);
    border-color: var(--brand);
    background: var(--brand-light);
}

.related-block {
    margin-top: 28px;
    background: rgba(234, 243, 248, .42);
    border-radius: 18px;
    padding: 28px;
}

.section-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.section-bar h2 {
    margin: 0;
    font-size: 21px;
    font-weight: 600;
    color: var(--text-main);
}

.link-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--brand);
    font-weight: 500;
}

.link-more i {
    transition: transform .2s ease;
}

.link-more:hover i {
    transform: translateX(3px);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.rel-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 18px;
    transition: all .22s ease;
    display: block;
}

.rel-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: rgba(29, 107, 147, .2);
}

.rel-card img {
    width: 100%;
    height: 132px;
    object-fit: cover;
    border-radius: 9px;
    margin-bottom: 12px;
}

.rel-card h3 {
    margin: 0 0 8px;
    font-size: 16px;
    line-height: 1.5;
    font-weight: 600;
    color: var(--text-main);
}

.rel-card p {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-pager {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-primary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    line-height: 1.4;
    transition: all .22s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: var(--shadow-btn);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--brand-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(21, 80, 111, .22);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-outline {
    background: transparent;
    color: var(--brand);
    border: 1.5px solid var(--brand);
}

.btn-outline:hover,
.btn-outline:focus {
    background: rgba(29, 107, 147, .08);
    color: var(--brand-dark);
    border-color: var(--brand-dark);
}

.article-sidebar .side-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
    padding: 24px;
    margin-bottom: 22px;
}

.side-card h3 {
    margin: 0 0 16px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 9px;
    line-height: 1.4;
}

.side-card h3 i {
    color: var(--brand);
    font-size: 15px;
}

.side-card h3::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-light);
    display: inline-block;
}

.sidebar-toc {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-toc li + li {
    margin-top: 5px;
}

.sidebar-toc a {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: var(--text-sub);
    padding: 7px 9px;
    border-radius: 8px;
    line-height: 1.5;
}

.sidebar-toc a:hover {
    background: var(--brand-soft);
    color: var(--brand-dark);
}

.sidebar-toc .toc-muted {
    color: var(--text-weak);
    font-size: 13px;
    padding: 4px 0;
}

.side-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.side-list li + li {
    margin-top: 7px;
}

.side-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 8px;
    color: var(--text-sub);
    font-size: 14px;
}

.side-list li a i {
    font-size: 13px;
    color: var(--brand);
}

.side-list li a:hover {
    background: var(--brand-light);
    color: var(--brand-dark);
    padding-left: 15px;
}

.contact-side-card {
    background: var(--brand-light) !important;
    border: none !important;
}

.contact-side-card p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin: 0 0 14px;
}

.side-help-icon {
    width: 46px;
    height: 46px;
    margin-bottom: 12px;
    background: #fff;
    color: var(--brand);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
}

.side-card .btn-primary,
.side-card .btn-outline {
    width: 100%;
    margin-top: 9px;
    min-height: 44px;
}

.copyright-note {
    font-size: 12px;
    color: var(--text-weak);
    line-height: 1.65;
    margin: 13px 0 0;
    display: flex;
    gap: 7px;
    align-items: flex-start;
}

.copyright-note i {
    margin-top: 3px;
    color: var(--accent-green);
}

.article-empty-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: var(--shadow-card);
    padding: 70px 30px;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.article-empty-card .empty-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 22px;
    background: var(--brand-light);
    color: var(--brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.article-empty-card h1 {
    font-size: 26px;
    margin: 0 0 10px;
    color: var(--text-main);
}

.article-empty-card p {
    color: var(--text-sub);
    margin-bottom: 26px;
    font-size: 15px;
}

.reveal.modal-card {
    border: none;
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(16, 42, 57, .2);
    max-width: 520px;
    padding: 48px 32px 30px;
}

.reveal.modal-card .close-button {
    width: 38px;
    height: 38px;
    padding: 0;
    right: 18px;
    top: 18px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-sub);
    font-size: 18px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(23, 61, 85, .08);
}

.reveal.modal-card .close-button:hover {
    background: var(--brand-light);
    color: var(--brand);
}

.modal-head {
    text-align: center;
    margin-bottom: 24px;
}

.modal-logo-icon {
    width: 54px;
    height: 54px;
    margin: 0 auto 14px;
    background: var(--brand-light);
    color: var(--brand);
    border-radius: 14px;
    font-size: 21px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-head h2 {
    margin: 0 0 7px;
    font-size: 24px;
    color: var(--text-main);
    font-weight: 700;
}

.modal-head p {
    margin: 0;
    color: var(--text-sub);
    font-size: 14px;
}

.site-form label {
    display: block;
    margin: 0 0 18px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
}

.site-form label span {
    display: block;
    margin-bottom: 7px;
    color: var(--text-sub);
    font-size: 14px;
}

.site-form input[type="text"],
.site-form input[type="tel"],
.site-form input[type="search"],
.site-form textarea,
.site-form select,
.site-form input[type="number"] {
    width: 100%;
    min-height: 46px;
    border: 1px solid #cfdce4;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 15px;
    background: #fff;
    color: var(--text-main);
    box-shadow: none;
    transition: all .15s ease;
}

.site-form textarea {
    min-height: 102px;
    resize: vertical;
}

.site-form input:focus,
.site-form textarea:focus,
.site-form select:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(29, 107, 147, .14);
}

.site-form input::placeholder,
.site-form textarea::placeholder {
    color: var(--text-weak);
}

.btn-full {
    width: 100%;
    height: 48px;
    font-size: 16px;
    margin-top: 4px;
}

.privacy-note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 15px 0 0;
    font-size: 12px;
    color: var(--text-weak);
    line-height: 1.7;
}

.privacy-note i {
    margin-top: 3px;
    font-size: 12px;
}

.form-feedback {
    display: none;
    margin-top: 14px;
    border-radius: 9px;
    padding: 10px 14px;
    background: #ecf5ef;
    color: var(--accent-green);
    font-size: 14px;
    text-align: center;
}

.form-feedback.show {
    display: block;
}

.back-top-btn {
    position: fixed;
    right: 22px;
    bottom: 26px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    color: var(--brand);
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all .22s ease;
}

.back-top-btn:hover {
    background: var(--brand);
    color: #fff;
    border-color: var(--brand);
    transform: translateY(-3px);
}

@media screen and (max-width: 1023.98px) {
    .desktop-nav,
    .nav-search,
    .nav-login {
        display: none !important;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .footer-main {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
        padding-top: 48px;
    }

    .footer-brand-box {
        grid-column: 1 / -1;
        max-width: 420px;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 639.98px) {
    .grid-container {
        padding-left: 18px;
        padding-right: 18px;
    }

    .site-header {
        min-height: 60px;
    }

    .header-main {
        min-height: 62px;
        gap: 10px;
    }

    .brand-mark {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .brand-name-zh {
        font-size: 16px;
    }

    .brand-name-en {
        display: none;
    }

    .btn-header-cta {
        min-height: 38px;
        padding: 0 14px;
        font-size: 14px;
        border-radius: 9px;
    }

    .btn-header-cta i {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 26px;
        padding: 44px 0 34px;
    }

    .footer-brand-box {
        grid-column: auto;
        max-width: 100%;
    }

    .article-intro {
        padding-top: 14px;
    }

    .article-card {
        padding: 24px 18px 26px;
        border-radius: 14px;
    }

    .article-header h1 {
        font-size: 23px;
    }

    .article-meta {
        gap: 8px 12px;
        font-size: 12px;
    }

    .article-body > p {
        font-size: 15px;
    }

    .article-body h2 {
        font-size: 20px;
    }

    .article-body h3 {
        font-size: 18px;
    }

    .related-block {
        padding: 20px 16px;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .article-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-page-main {
        padding-top: 22px;
    }

    .site-footer {
        margin-top: 60px;
    }

    .footer-bottom {
        justify-content: center;
        text-align: center;
        line-height: 1.8;
    }

    .breadcrumb {
        font-size: 13px;
    }

    .reveal.modal-card {
        padding: 42px 20px 24px;
    }
}

@media screen and (max-width: 479.98px) {
    .header-actions {
        gap: 8px;
    }

    .brand {
        gap: 7px;
    }

    .brand-name-zh {
        font-size: 15px;
        letter-spacing: .3px;
    }

    .btn-header-cta {
        font-size: 13px;
        padding: 0 12px;
        min-height: 36px;
    }
}

/* roulang page: category1 */
:root {
  --primary: #1D6B93;
  --primary-dark: #15506F;
  --primary-deep: #0F4059;
  --primary-soft: #EAF3F8;
  --primary-mist: #F2F8FB;
  --accent-sage: #417163;
  --accent-warm: #C47B4A;
  --page-bg: #F5F9FC;
  --card-bg: #FFFFFF;
  --text-main: #23343F;
  --text-muted: #5B6C78;
  --text-faint: #94A3AE;
  --border-light: #E2EBF1;
  --border-input: #D2DDE3;
  --shadow-sm: 0 2px 6px rgba(23, 61, 85, 0.04), 0 12px 28px rgba(23, 61, 85, 0.07);
  --shadow-hover: 0 6px 12px rgba(23, 61, 85, 0.08), 0 18px 40px rgba(23, 61, 85, 0.12);
  --radius-input: 8px;
  --radius-btn: 10px;
  --radius-card: 16px;
  --radius-large: 20px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-stack);
  color: var(--text-main);
  background: var(--page-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol, dl, dd, p, h1, h2, h3, h4, figure { margin: 0; padding: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
.grid-container { max-width: 1200px; }
::selection { background: rgba(29, 107, 147, 0.12); }
:focus-visible { outline: 3px solid rgba(29, 107, 147, 0.28); outline-offset: 2px; }

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(226, 235, 241, 0.8);
  backdrop-filter: blur(10px);
}
.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
}
.header-main {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--primary);
  font-size: 18px;
  box-shadow: 0 6px 14px rgba(29, 107, 147, 0.22);
}
.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-name-zh {
  color: var(--primary-deep);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.brand-name-en {
  color: var(--text-faint);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}
.desktop-nav { margin-left: 6px; }
.desktop-nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  align-items: center;
  height: 64px;
  margin: 0;
}
.desktop-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 64px;
  font-size: 15px;
  font-weight: 500;
  color: #33434F;
  border-bottom: 3px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.desktop-nav a:hover { color: var(--primary); }
.desktop-nav li.is-current a {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
  flex-shrink: 0;
}
.nav-search {
  position: relative;
  display: flex;
  align-items: center;
  max-width: 220px;
  width: 200px;
}
.nav-search i {
  position: absolute;
  left: 13px;
  color: var(--text-faint);
  font-size: 14px;
  transition: transform 0.2s ease;
}
.nav-search input {
  width: 100%;
  height: 38px;
  border: 1px solid var(--border-input);
  border-radius: 999px;
  padding: 0 16px 0 38px;
  background: #F7FAFD;
  font-size: 14px;
  color: var(--text-main);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.nav-search input::placeholder { color: var(--text-faint); }
.nav-search input:hover { border-color: rgba(29, 107, 147, 0.35); background:#fff; }
.nav-search input:focus {
  outline: none;
  background:#fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.12);
}
.nav-search:focus-within i {
  transform: translateX(-3px);
  color: var(--primary);
}
.nav-login {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  padding: 10px 4px;
  transition: color 0.2s ease;
}
.nav-login:hover { color: var(--primary-dark); }
.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 42px;
  padding: 0 22px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  box-shadow: 0 8px 18px rgba(29, 107, 147, 0.2);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-header-cta:hover {
  background: var(--primary-dark);
  box-shadow: 0 10px 22px rgba(29, 107, 147, 0.28);
  transform: translateY(-1px);
}
.btn-header-cta:active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px rgba(29, 107, 147, 0.18);
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-light);
  background: transparent;
  border-radius: 10px;
  color: var(--text-main);
  font-size: 16px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.menu-toggle:hover { background: var(--primary-soft); }
.mobile-nav {
  display: none;
  border-top: 1px solid var(--border-light);
  background: #fff;
  padding: 16px 0 20px;
}
.mobile-nav-inner { padding: 0 20px; }
.mobile-nav-search {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}
.mobile-nav-search i { position: absolute; left: 14px; color: var(--text-faint); font-size: 14px; }
.mobile-nav-search input {
  width: 100%;
  height: 46px;
  border: 1px solid var(--border-input);
  border-radius: 999px;
  padding: 0 18px 0 42px;
  background: #F7FAFD;
  font-size: 15px;
}
.mobile-nav-list { list-style: none; }
.mobile-nav-list li { border-bottom: 1px solid rgba(226, 235, 241, 0.9); }
.mobile-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  font-size: 15px;
  color: var(--text-main);
  font-weight: 500;
}
.mobile-nav-list i { color: var(--text-faint); font-size: 13px; }
.mobile-nav-list li.is-current a { color: var(--primary); }
.mobile-nav-cta { margin-top: 16px; }
.mobile-nav-cta a { width: 100%; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px rgba(29, 107, 147, 0.2);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(29, 107, 147, 0.26);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(29, 107, 147, 0.16);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255, 255, 255, 0.6);
}
.btn-outline:hover {
  background: rgba(29, 107, 147, 0.08);
  transform: translateY(-2px);
}
.btn-outline:active { transform: translateY(0); }
.btn-ghost-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  padding: 6px 0;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.btn-ghost-text i { transition: transform 0.2s ease; }
.btn-ghost-text:hover i { transform: translateX(4px); }
.btn-light {
  background: #fff;
  color: var(--primary-dark);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn-light:hover { background: var(--primary-soft); }

/* ===== 区块 ===== */
.sec {
  padding: 88px 0;
}
.page-hero {
  background: var(--page-bg);
  border-bottom: 1px solid var(--border-light);
}
.page-hero-short { padding: 48px 0 52px; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 11px; margin: 0 10px; color: var(--text-faint); }
.breadcrumb .current { color: var(--text-main); font-weight: 500; }
.page-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--primary);
  background: rgba(29, 107, 147, 0.09);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.page-hero-short h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary-deep);
  margin-bottom: 14px;
}
.page-hero-lead {
  max-width: 840px;
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.section-rule {
  width: 32px;
  height: 4px;
  border-radius: 999px;
  background: var(--primary);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--primary-deep);
}
.section-head p {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 520px;
  line-height: 1.7;
}

/* ===== 平台档案与特点 ===== */
.profile-section {
  padding-top: 72px;
  padding-bottom: 40px;
}
.profile-grid { display: flex; flex-wrap: wrap; gap: 32px; align-items: stretch; }
.profile-file {
  flex: 0 0 38%;
  background: var(--card-bg);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  align-self: start;
}
.profile-file-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.profile-file-head .icon {
  width: 42px;
  height: 42px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.profile-file-head h3 { font-size: 20px; font-weight: 600; }
.file-list dl { display: flex; flex-direction: column; gap: 0; }
.file-list .file-item {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(226, 235, 241, 0.8);
}
.file-list .file-item:last-child { border-bottom: 0; }
.file-list dt { color: var(--text-faint); font-size: 13px; flex-shrink: 0; padding-top: 2px; }
.file-list dd { text-align: right; color: var(--text-main); font-size: 15px; font-weight: 500; }
.file-note {
  margin-top: 16px;
  background: var(--primary-mist);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}
.profile-values {
  flex: 1;
  min-width: 0;
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-sm);
  padding: 36px;
}
.profile-values-head { margin-bottom: 30px; }
.profile-values-head h3 { font-size: 24px; font-weight: 700; color: var(--primary-deep); }
.profile-values-head p { color: var(--text-muted); font-size: 14px; margin-top: 8px; }
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px 28px;
}
.value-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.value-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(65, 113, 99, 0.1);
  color: var(--accent-sage);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  margin-top: 2px;
}
.value-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.4;
}
.value-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}
@media screen and (max-width: 900px) {
  .profile-grid { flex-direction: column; }
  .profile-file, .profile-values { flex: 1 1 100%; }
  .values-grid { grid-template-columns: 1fr; }
}

/* ===== 频道构成 ===== */
.channel-section {
  background: var(--page-bg);
  padding-top: 84px;
  padding-bottom: 84px;
}
.channel-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  align-items: center;
}
.channel-visual { flex: 1 1 42%; min-width: 320px; }
.channel-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}
.channel-list { flex: 1 1 48%; min-width: 300px; }
.channel-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(226, 235, 241, 0.9);
}
.channel-item:last-child { border-bottom: 0; }
.channel-item .icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: var(--primary-soft);
  font-size: 16px;
  margin-top: 2px;
}
.channel-item .text { flex: 1; min-width: 0; }
.channel-item .title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 5px;
}
.channel-item .title .tag {
  font-size: 12px;
  font-weight: 400;
  color: var(--primary);
  background: rgba(29, 107, 147, 0.09);
  padding: 2px 10px;
  border-radius: 999px;
}
.channel-item p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.channel-item a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  transition: gap 0.2s ease;
}
.channel-item a:hover { gap: 9px; }
@media screen and (max-width: 860px) {
  .channel-wrap { flex-direction: column; }
}
/* ===== 资料与核验 ===== */
.credential-section {
  position: relative;
  background-image: linear-gradient(90deg, rgba(255, 255, 255, 0.97), rgba(234, 243, 248, 0.93)), url('/assets/images/backpic/back-1.webp');
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  padding-top: 80px;
  padding-bottom: 80px;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.credential-header {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 36px;
  align-items: center;
  margin-bottom: 38px;
}
.credential-header h2 { font-size: 27px; color: var(--primary-deep); line-height: 1.35; }
.credential-header p { color: var(--text-muted); font-size: 14px; line-height: 1.8; }
.credential-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.credential-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(226, 235, 241, 0.86);
  border-radius: 16px;
  padding: 20px 22px;
  box-shadow: 0 2px 10px rgba(23, 61, 85, 0.04);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.credential-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.credential-card .icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(29, 107, 147, 0.08);
  color: var(--primary);
  border-radius: 10px;
  margin-bottom: 12px;
}
.credential-card h3 { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 6px; }
.credential-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.data-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 40px;
  margin-top: 44px;
  padding: 24px 28px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--border-light);
  border-radius: 16px;
}
.data-strip .data-number {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}
.data-strip .data-number strong {
  font-size: 26px;
  color: var(--primary);
  font-weight: 700;
  margin-right: 6px;
}
@media screen and (max-width: 820px) {
  .credential-header { grid-template-columns: 1fr; gap: 18px; }
  .credential-grid { grid-template-columns: 1fr; }
}

/* ===== 流程 ===== */
.process-section { padding-top: 84px; padding-bottom: 64px; }
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 16px;
}
.process-step {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 28px 22px;
  text-align: left;
  position: relative;
  box-shadow: 0 2px 8px rgba(23, 61, 85, 0.04);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.process-step:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.process-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: rgba(196, 123, 74, 0.12);
  color: var(--accent-warm);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
}
.process-step h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
@media screen and (max-width: 900px) {
  .process-list { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 520px) {
  .process-list { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section { padding-top: 80px; padding-bottom: 88px; }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
  align-items: start;
}
.faq-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(23, 61, 85, 0.03);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-card:not(.is-open):hover { border-color: rgba(29, 107, 147, 0.28); }
.faq-card.is-open { border-color: rgba(29, 107, 147, 0.45); box-shadow: var(--shadow-sm); }
.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  border-radius: 16px;
}
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(29, 107, 147, 0.3);
  color: var(--primary);
  font-size: 14px;
  line-height: 1;
  transition: transform 0.2s ease, background 0.2s ease;
  font-style: normal;
}
.faq-card.is-open .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-a { display: none; padding: 0 22px 20px 64px; }
.faq-card.is-open .faq-a { display: block; }
.faq-a p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}
@media screen and (max-width: 820px) {
  .faq-grid { grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta-section {
  background: #fff;
  padding: 56px 0 88px;
}
.cta-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: rgba(29, 107, 147, 0.05);
  border: 1px solid rgba(29, 107, 147, 0.12);
  border-radius: 24px;
  padding: 44px 48px;
}
.cta-left { flex: 1 1 360px; }
.cta-tag { color: var(--primary); font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.cta-left h2 { font-size: 24px; font-weight: 700; color: var(--primary-deep); line-height: 1.35; margin-bottom: 10px; }
.cta-left p { color: var(--text-muted); font-size: 14px; line-height: 1.75; max-width: 560px; }
.cta-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.privacy-note {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--text-faint);
  max-width: 640px;
  margin-top: 16px;
}
.privacy-note i { color: rgba(29, 107, 147, 0.5); }
@media screen and (max-width: 720px) {
  .cta-panel { padding: 30px 22px; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: #102A39;
  color: rgba(255, 255, 255, 0.72);
  border-top: 3px solid var(--primary);
  padding-top: 52px;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand-box .brand { margin-bottom: 18px; }
.footer-brand-box .brand-name-zh { color: #F2F8FB; }
.footer-brand-box .brand-name-en { color: rgba(255, 255, 255, 0.45); }
.footer-desc {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.58);
  max-width: 360px;
}
.footer-group h3 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-group li a {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer-group li a i { font-size: 10px; margin-right: 8px; color: rgba(255,255,255,0.35); }
.footer-group li a:hover { color: #fff; transform: translateX(2px); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 20px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
}
@media screen and (max-width: 900px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 580px) {
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
}

/* ===== Reveal 弹层定制 ===== */
.reveal {
  background: #fff;
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 0;
}
.reveal:focus { outline: none; }
.reveal-title-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 22px 28px 0;
}
.reveal-title-area h3 { font-size: 20px; font-weight: 700; color: var(--primary-deep); }
.close-button {
  border: 0;
  width: 38px;
  height: 38px;
  background: transparent;
  color: var(--text-muted);
  border-radius: 50%;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background 0.2s ease, color 0.2s ease;
}
.close-button:hover { background: var(--primary-soft); color: var(--primary); }
.form-area { padding: 8px 28px 0; }
.form-area label {
  display: block;
  font-size: 14px;
  color: var(--text-main);
  margin: 16px 0 6px;
  font-weight: 500;
}
.form-area input,
.form-area textarea {
  width: 100%;
  height: 46px;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-input);
  padding: 0 14px;
  font-size: 15px;
  color: var(--text-main);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-area textarea { min-height: 104px; padding: 12px 14px; line-height: 1.6; resize: vertical; }
.form-area input:focus,
.form-area textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.14);
}
.form-area .privacy-note { margin-top: 14px; }
.form-submit { padding: 4px 28px 28px; margin-top: 6px; }
.form-submit .btn { width: 100%; min-height: 48px; border: 0; }
.login-link-note {
  text-align: center;
  padding: 0 28px 28px;
  font-size: 13px;
  color: var(--text-muted);
}
.login-link-note a { color: var(--primary); font-weight: 500; }

/* ===== 响应式导航 ===== */
@media screen and (max-width: 1090px) {
  .header-main { gap: 18px; }
  .desktop-nav ul { gap: 20px; }
  .nav-search { width: 170px; }
}
@media screen and (max-width: 980px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav.active { display: block; }
  .nav-search { display: none; }
  .header-main { min-height: 64px; }
  .nav-login { font-size: 0; gap: 0; width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); border-radius: 10px; }
  .nav-login i { font-size: 15px; }
  .btn-header-cta { min-height: 42px; padding: 0 18px; font-size: 14px; }
}
@media screen and (max-width: 600px) {
  .site-header { position: sticky; }
  .btn-header-cta { width: 44px; padding: 0; justify-content: center; font-size: 0; }
  .btn-header-cta i { font-size: 15px; margin: 0; }
  .page-hero-short h1 { font-size: 30px; }
  .sec { padding: 52px 0; }
  .section-head h2 { font-size: 23px; }
  .channel-item .title { font-size: 15px; }
  .values-grid { gap: 20px; }
}

/* ===== 辅助动效 ===== */
.reveal-anim {
  animation: revealFade 0.28s ease;
}
@keyframes revealFade {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category3 */
:root {
  --primary: #1D6B93;
  --primary-dark: #15506F;
  --primary-deep: #0A3A52;
  --primary-bg: #EAF3F8;
  --page-bg: #F5F9FC;
  --surface: #FFFFFF;
  --text: #23343F;
  --text-secondary: #5B6C78;
  --muted: #94A3AE;
  --success: #417163;
  --accent: #C47B4A;
  --border: #D9E4EB;
  --footer-bg: #132A36;
  --footer-text: #B7C6CF;
  --r-sm: 8px;
  --r-md: 10px;
  --r-lg: 16px;
  --shadow-s: 0 2px 6px rgba(23,61,85,.04), 0 12px 28px rgba(23,61,85,.07);
  --shadow-l: 0 6px 12px rgba(23,61,85,.08), 0 18px 40px rgba(23,61,85,.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
ul, ol { margin: 0; padding: 0; list-style: none; }
p, h1, h2, h3, h4 { margin: 0; }
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease; }
a:hover { color: var(--primary); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
input, textarea { outline: none; }
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #E1E9F0;
  box-shadow: 0 1px 6px rgba(23,61,85,.03);
}
.site-header.scrolled { box-shadow: var(--shadow-s); }
.header-main {
  display: flex;
  align-items: stretch;
  min-height: 70px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-bg);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 18px;
  flex: 0 0 auto;
}
.brand-name { display: flex; flex-direction: column; line-height: 1.16; }
.brand-name-zh { font-size: 19px; font-weight: 700; color: #1E2F3B; letter-spacing: .02em; }
.brand-name-en { font-size: 10px; color: var(--muted); letter-spacing: .7px; font-weight: 500; }
.desktop-nav { display: flex; align-items: center; }
.desktop-nav ul { display: flex; align-items: center; gap: 30px; }
.desktop-nav a {
  display: inline-block;
  position: relative;
  padding: 24px 2px 22px;
  color: #33434F;
  font-size: 15px;
  font-weight: 500;
}
.desktop-nav a:hover { color: var(--primary); }
.desktop-nav .is-current > a { color: var(--primary); font-weight: 600; }
.desktop-nav .is-current > a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--primary);
}
.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 0;
}
.nav-search {
  display: flex;
  align-items: center;
  background: #F5F9FC;
  border: 1px solid var(--border);
  border-radius: 999px;
  height: 40px;
  padding: 0 14px;
  width: 188px;
  transition: border-color .18s, box-shadow .18s, width .2s;
}
.nav-search:focus-within { border-color: rgba(29,107,147,.5); box-shadow: 0 0 0 3px rgba(29,107,147,.1); width: 220px; }
.nav-search i { color: var(--muted); font-size: 14px; }
.nav-search input {
  border: 0;
  background: transparent;
  width: 100%;
  padding: 0 0 0 9px;
  color: var(--text);
  font-size: 13px;
  height: 38px;
  line-height: 38px;
}
.nav-search input::placeholder { color: var(--muted); }
.nav-search input:focus { box-shadow: none; }
.nav-login {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  padding: 9px 10px;
  border-radius: var(--r-md);
  white-space: nowrap;
}
.nav-login:hover { background: var(--primary-bg); color: var(--primary-dark); }
.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  padding: 11px 22px;
  border-radius: var(--r-md);
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  box-shadow: 0 4px 12px rgba(29,107,147,.2);
  transition: background .2s, box-shadow .2s, transform .15s;
}
.btn-header-cta:hover { color: #fff; background: var(--primary-dark); box-shadow: 0 8px 18px rgba(29,107,147,.24); transform: translateY(-1px); }
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: var(--r-md);
  font-size: 18px;
  cursor: pointer;
}
.mobile-nav { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: var(--r-md);
  border: 1.5px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  text-align: center;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease, border-color .2s ease, transform .15s ease;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; box-shadow: 0 8px 18px rgba(29,107,147,.22); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: rgba(29,107,147,.08); color: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--primary); padding: 6px 2px; border: 0; }
.btn-ghost:hover { gap: 13px; color: var(--primary-dark); }
.btn-ghost i { font-size: 13px; transition: transform .18s; }
.btn-ghost:hover i { transform: translateX(4px); }
.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: 12px; }

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(29,107,147,.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.tag-success { background: rgba(65,113,99,.1); color: var(--success); }

/* Page hero */
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  padding: 88px 0 74px;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(245,249,252,.98) 0%, rgba(245,249,252,.94) 42%, rgba(245,249,252,.55) 100%);
}
.page-hero .grid-container { position: relative; z-index: 1; }
.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.crumbs a:hover { color: var(--primary); }
.crumbs .sep { color: #C1CCD4; font-size: 12px; }
.crumbs .current { color: var(--text); font-weight: 500; }
.page-hero h1 {
  font-size: 40px;
  line-height: 1.3;
  font-weight: 700;
  color: #172934;
  margin-bottom: 12px;
  letter-spacing: .02em;
}
.page-hero .hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 24px;
}
.page-hero .hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* Verification strip */
.verify-strip {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  padding: 18px 22px;
  border: 1px solid rgba(29,107,147,.1);
  background: rgba(255,255,255,.66);
  border-radius: var(--r-md);
  max-width: 760px;
  font-size: 13px;
  color: var(--text-secondary);
}
.verify-strip span { display: inline-flex; align-items: center; gap: 8px; }
.verify-strip i { color: var(--success); font-size: 14px; }

/* Section common */
.section { padding: 88px 0; }
.section.tight { padding: 74px 0 62px; }
.section.no-pt { padding-top: 0; }
.section-head { max-width: 700px; margin-bottom: 40px; }
.eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  border-left: 3px solid var(--primary);
  padding-left: 11px;
  line-height: 1.4;
  margin-bottom: 12px;
}
.section-title {
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
  color: #182B36;
  margin-bottom: 10px;
}
.section-desc { color: var(--text-secondary); font-size: 15px; line-height: 1.75; }
.section-head-center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head-center .eyebrow { border-left: 0; padding-left: 0; }

/* Featured card */
.featured-wrapper { margin-top: -74px; position: relative; z-index: 2; }
.featured-panel {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-s);
  border: 1px solid rgba(29,107,147,.07);
  display: grid;
  grid-template-columns: minmax(0, 46%) minmax(0, 1fr);
  transition: box-shadow .22s ease;
}
.featured-panel:hover { box-shadow: var(--shadow-l); }
.featured-media { position: relative; min-height: 320px; }
.featured-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.featured-badge {
  position: absolute;
  left: 22px;
  top: 22px;
  padding: 7px 16px;
  background: rgba(29,107,147,.94);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  line-height: 1;
}
.featured-content { padding: 42px 46px 38px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.featured-content .meta-row { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.featured-content .meta-date { font-size: 13px; color: var(--muted); }
.featured-content h2 { font-size: 27px; line-height: 1.45; margin-bottom: 16px; color: #223642; font-weight: 700; }
.featured-content p { font-size: 15px; color: var(--text-secondary); line-height: 1.85; margin-bottom: 24px; }

/* News list */
.news-section { background: var(--surface); }
.news-list-card { max-width: 900px; }
.news-row {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 30px 6px;
  border-bottom: 1px solid #EAF0F4;
  transition: background .18s ease, padding-left .18s ease;
}
.news-row:first-child { padding-top: 12px; }
.news-row:hover { padding-left: 14px; }
.news-row:hover h3 a { color: var(--primary); }
.news-date-box { flex: 0 0 106px; background: var(--primary-bg); border-radius: var(--r-md); text-align: center; padding: 14px 6px 10px; }
.news-date-day { display: block; font-size: 28px; line-height: 1; font-weight: 700; color: var(--primary); font-variant-numeric: tabular-nums; }
.news-date-month { display: block; font-size: 12px; color: var(--muted); margin-top: 6px; letter-spacing: .3px; }
.news-main { flex: 1; min-width: 0; }
.news-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.news-meta .date-text { font-size: 13px; color: var(--muted); }
.news-main h3 { font-size: 19px; line-height: 1.5; font-weight: 600; margin-bottom: 6px; }
.news-main h3 a { display: inline; }
.news-main p { font-size: 14px; color: var(--text-secondary); line-height: 1.75; max-width: 740px; }
.news-arrow { flex: 0 0 46px; }
.round-arrow {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  color: var(--primary);
  background: #fff;
  transition: background .18s, border-color .18s, transform .18s, color .18s;
}
.round-arrow:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateX(3px); }

/* Empty state */
.news-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
  background: #F9FCFE;
  border: 1px dashed var(--border);
  border-radius: var(--r-lg);
}
.news-empty i { font-size: 30px; margin-bottom: 12px; color: var(--border); }
.news-empty p { font-size: 14px; }

/* Side channel cards */
.channel-cards { max-width: 900px; }
.channel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.channel-entry {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #F8FBFD;
  border: 1px solid #E2EBF1;
  border-radius: var(--r-lg);
  padding: 24px 26px;
  transition: background .18s, border-color .18s, transform .18s, box-shadow .18s;
}
.channel-entry:hover { background: #fff; border-color: rgba(29,107,147,.18); transform: translateY(-2px); box-shadow: var(--shadow-s); }
.channel-icon {
  flex: 0 0 42px;
  height: 42px;
  border-radius: 12px;
  background: #E4F0F6;
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 17px;
}
.channel-title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.channel-desc { font-size: 13px; color: var(--muted); line-height: 1.65; }
.channel-more { display: inline-flex; align-items: center; gap: 5px; margin-top: 8px; font-size: 13px; color: var(--primary); font-weight: 600; }
.channel-entry:hover .channel-more i { transform: translateX(3px); }
.channel-more i { transition: transform .18s; }

/* FAQ */
.faq-section { background: var(--page-bg); }
.faq-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr); gap: 42px; }
.faq-accordion.accordion { background: transparent; margin: 0; }
.faq-accordion .accordion-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 1px 3px rgba(23,61,85,.03);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .18s, box-shadow .18s;
}
.faq-accordion .accordion-item:hover { box-shadow: var(--shadow-s); }
.faq-accordion .accordion-item.is-active { border-color: rgba(29,107,147,.4); box-shadow: var(--shadow-s); }
.faq-accordion .accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  padding: 20px 24px;
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-item.is-active > .accordion-title { background: #fff; color: var(--primary); }
.faq-accordion .accordion-content { background: #fff; border-top: 1px dashed #E1EBF0; color: var(--text-secondary); font-size: 14px; line-height: 1.8; padding: 17px 26px 22px 62px; }
.faq-mark {
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 400;
  transition: transform .2s, background .2s;
}
.faq-accordion .accordion-item.is-active .faq-mark { transform: rotate(45deg); }
.faq-aside { display: flex; flex-direction: column; gap: 20px; }
.help-tip-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-s);
}
.help-tip-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.help-tip-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.75; }
.help-tip-list li { position: relative; padding-left: 22px; color: var(--text-secondary); font-size: 14px; margin-top: 9px; }
.help-tip-list li::before { content: ""; width: 6px; height: 6px; background: var(--success); border-radius: 50%; position: absolute; left: 4px; top: 11px; }

/* CTA */
.consult-section { padding: 74px 0 92px; }
.consult-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-s);
  padding: 44px 50px;
  position: relative;
  overflow: hidden;
}
.consult-panel::after { content: ""; position: absolute; right: -60px; top: -60px; width: 180px; height: 180px; border-radius: 50%; background: var(--primary-bg); opacity: .6; }
.consult-copy, .consult-actions { position: relative; z-index: 1; }
.consult-copy h2 { font-size: 26px; margin-bottom: 8px; color: #20323D; }
.consult-copy p { color: var(--text-secondary); font-size: 15px; max-width: 640px; }
.consult-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-left: auto; }
.cta-privacy {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  color: var(--muted);
  font-size: 12px;
  margin-top: 20px;
}

/* Footer */
.site-footer { background: var(--footer-bg); margin-top: 0; border-top: 3px solid #6BA6C0; color: var(--footer-text); }
.footer-main { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr) minmax(0, .9fr) minmax(0, .9fr); gap: 48px; padding: 62px 0 50px; }
.footer-brand-box .brand { margin-bottom: 18px; color: #fff; padding: 0; }
.footer-brand-box .brand-name-zh { color: #fff; }
.footer-brand-box .brand-name-en { color: #8FA6B1; }
.footer-brand-box .brand-mark { background: rgba(255,255,255,.1); color: #Dbeaf1; }
.footer-desc { color: #93A8B3; font-size: 14px; line-height: 1.9; max-width: 360px; }
.footer-group h3 { color: #E9F1F5; font-size: 15px; font-weight: 600; margin-bottom: 17px; }
.footer-group li { margin-bottom: 9px; }
.footer-group a { color: #9FB2BC; font-size: 13px; display: inline-flex; align-items: center; gap: 7px; }
.footer-group a:hover { color: #fff; }
.footer-group a i { font-size: 10px; color: #648092; transition: transform .18s; }
.footer-group a:hover i { transform: translateX(3px); color: #9CD1E6; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: #7F97A2;
  font-size: 13px;
}
.footer-bottom .domain { color: #A7B9C2; }

/* Modal */
.reveal {
  border-radius: 18px;
  border: 0;
  box-shadow: 0 24px 64px rgba(14,43,60,.26);
  padding: 38px;
  outline: none;
}
.reveal h3 { font-size: 24px; color: #1B2D38; margin-bottom: 8px; }
.reveal .modal-desc { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin-bottom: 24px; }
.reveal .close-button { color: var(--muted); font-size: 30px; right: 16px; top: 10px; transition: color .18s; }
.reveal .close-button:hover { color: var(--text); }
.reveal-overlay { background: rgba(28,46,58,.45); backdrop-filter: blur(2px); }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 7px; }
.form-field input,
.form-field textarea {
  width: 100%;
  height: 46px;
  border: 1px solid #D2DDE3;
  border-radius: var(--r-sm);
  background: #FBFDFE;
  color: var(--text);
  padding: 0 15px;
  font-size: 15px;
  transition: border-color .18s, box-shadow .18s, background .18s;
}
.form-field textarea { height: auto; min-height: 110px; padding: 13px 15px; resize: vertical; }
.form-field input:focus,
.form-field textarea:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(29,107,147,.13); }
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--muted); }
.form-submit-row .btn { width: 100%; height: 48px; }
.privacy-note { display: flex; align-items: flex-start; gap: 8px; font-size: 12px; color: var(--text-secondary); line-height: 1.65; margin-top: 16px; }
.privacy-note i { color: var(--muted); margin-top: 5px; }
.form-success { display: flex; align-items: center; gap: 10px; background: rgba(65,113,99,.08); color: var(--success); border: 1px solid rgba(65,113,99,.15); border-radius: var(--r-md); padding: 14px 16px; font-size: 14px; }
.login-demo-note { padding: 16px 17px; border: 1px dashed var(--border); border-radius: 10px; color: var(--text-secondary); font-size: 13px; line-height: 1.8; margin: 18px 0 10px; background: #F9FCFE; }

/* Responsive */
@media screen and (max-width: 1024px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-main { gap: 16px; }
  .header-actions .nav-search { width: 40px; border-color: transparent; background: transparent; overflow: hidden; }
  .header-actions .nav-search i { color: var(--primary); }
  .header-actions .nav-search input { display: none; }
  .mobile-nav { display: block; position: absolute; top: 70px; left: 0; right: 0; background: rgba(255,255,255,.99); border-bottom: 1px solid #E1E9F0; box-shadow: 0 22px 40px rgba(23,61,85,.08); opacity: 0; visibility: hidden; transform: translateY(-8px); pointer-events: none; transition: opacity .2s, transform .2s, visibility .2s; }
  .mobile-nav.open { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
  .mobile-nav-inner { padding: 18px 24px 28px; }
  .mobile-nav-search { display: flex; align-items: center; background: #F4F8FB; border: 1px solid var(--border); border-radius: var(--r-md); height: 44px; padding: 0 14px; margin-bottom: 14px; }
  .mobile-nav-search input { border: 0; background: transparent; padding-left: 10px; width: 100%; color: var(--text); font-size: 14px; }
  .mobile-nav-list li { border-bottom: 1px solid #EDF2F5; }
  .mobile-nav-list li:last-child { border-bottom: 0; }
  .mobile-nav-list a { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 12px 2px; font-size: 16px; font-weight: 500; color: var(--text); }
  .mobile-nav-list a i { color: #B3C1CA; font-size: 13px; }
  .mobile-nav-list .is-current > a { color: var(--primary); font-weight: 600; }
  .mobile-nav-list .is-current > a i { color: var(--primary); }
  .mobile-nav-list .mo-login a { color: var(--primary); }
  .mobile-nav-cta { background: var(--primary-bg); margin-top: 12px; border-radius: var(--r-md); }
  .mobile-nav-list .mobile-nav-cta a { justify-content: center; font-weight: 600; color: var(--primary); gap: 9px; }
  .mobile-nav-list .mobile-nav-cta a i { display: none; }
  .featured-panel { grid-template-columns: 1fr; }
  .featured-media { height: 280px; }
  .faq-layout { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 42px 30px; }
  .consult-panel { flex-direction: column; align-items: flex-start; padding: 34px 30px; }
  .consult-actions { margin-left: 0; }
}
@media screen and (max-width: 767px) {
  body { font-size: 14px; }
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-name-zh { font-size: 16px; }
  .btn-header-cta { padding: 10px 14px; font-size: 13px; border-radius: 8px; }
  .btn-header-cta i { display: none; }
  .header-main { min-height: 62px; }
  .mobile-nav { top: 62px; }
  .section { padding: 56px 0; }
  .section.tight { padding: 46px 0; }
  .page-hero { padding: 52px 0 82px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .hero-lead { font-size: 15px; }
  .verify-strip { padding: 14px 16px; gap: 10px 16px; }
  .section-title { font-size: 25px; }
  .featured-wrapper { margin-top: -48px; padding: 0; }
  .featured-panel { border-radius: 14px; }
  .featured-media { min-height: 0; height: 220px; }
  .featured-content { padding: 28px 22px 28px; }
  .featured-content h2 { font-size: 22px; }
  .news-row { flex-wrap: wrap; padding: 22px 0; gap: 14px; }
  .news-row:hover { padding-left: 8px; }
  .news-date-box { flex-basis: 84px; }
  .news-main { flex-basis: calc(100% - 100px); }
  .news-arrow { display: none; }
  .news-main h3 { font-size: 17px; }
  .channel-grid { grid-template-columns: 1fr; }
  .faq-accordion .accordion-title { font-size: 14px; padding: 17px 18px; }
  .faq-accordion .accordion-content { padding: 14px 18px 18px 18px; }
  .consult-section { padding: 52px 0 68px; }
  .consult-panel { padding: 28px 22px; }
  .consult-panel::after { display: none; }
  .consult-copy h2 { font-size: 22px; }
  .consult-actions .btn { width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; padding: 48px 0 30px; }
  .footer-desc { max-width: none; }
  .footer-bottom { justify-content: center; text-align: center; }
  .reveal { padding: 28px 20px; width: 92vw; }
}

/* roulang page: category2 */
:root {
            --primary: #1D6B93;
            --primary-dark: #15506F;
            --primary-deeper: #0F3C54;
            --primary-light: #EAF3F8;
            --primary-soft: rgba(29, 107, 147, 0.08);
            --accent-green: #417163;
            --accent-green-light: #E9F3EF;
            --bg: #F5F9FC;
            --card-white: #FFFFFF;
            --text: #23343F;
            --muted: #5B6C78;
            --weak: #94A3AE;
            --line: #D9E4EA;
            --line-dark: #C4D1DA;
            --warm: #C47B4A;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(23, 61, 85, 0.04), 0 12px 28px rgba(23, 61, 85, 0.07);
            --shadow-hover: 0 6px 12px rgba(23, 61, 85, 0.08), 0 18px 40px rgba(23, 61, 85, 0.12);
            --header-h: 72px;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
            vertical-align: middle;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
            text-decoration: none;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            margin: 0 0 0.55em;
            line-height: 1.35;
            font-weight: 700;
            color: var(--text);
        }

        ::placeholder {
            color: var(--weak);
            opacity: 1;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            outline: none;
        }

        button {
            cursor: pointer;
            border: 0;
            background: transparent;
        }

        .text-muted {
            color: var(--muted);
        }

        .primary-mark {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .section-heading-bar {
            width: 32px;
            height: 4px;
            background: var(--primary);
            border-radius: 999px;
        }

        .section-title {
            font-size: 28px;
            line-height: 1.35;
            margin: 0 0 12px;
            color: var(--text);
        }

        .section-sub-title {
            font-size: 16px;
            color: var(--muted);
            max-width: 760px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .soft-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            padding: 5px 12px;
            white-space: nowrap;
        }

        .soft-chip i {
            font-size: 11px;
        }

        .button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 26px;
            border-radius: var(--radius-md);
            transition: background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease, border-color 0.22s ease;
            line-height: 1.2;
            border: 1.5px solid transparent;
            min-height: 48px;
        }

        .button-solid {
            background: var(--primary);
            color: #ffffff;
        }

        .button-solid:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 18px rgba(29, 107, 147, 0.22);
        }

        .button-solid:active {
            transform: translateY(1px);
            box-shadow: 0 4px 10px rgba(29, 107, 147, 0.16);
        }

        .button-outline {
            border-color: var(--primary);
            color: var(--primary);
            background: #fff;
        }

        .button-outline:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .button-ghost {
            color: var(--primary);
            background: transparent;
            padding: 14px 10px;
            font-weight: 600;
        }

        .button-ghost i {
            transition: transform 0.22s ease;
        }

        .button-ghost:hover {
            color: var(--primary-dark);
        }

        .button-ghost:hover i {
            transform: translateX(3px);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1005;
            background: rgba(255, 255, 255, 0.94);
            border-bottom: 1px solid #E5EDF2;
            backdrop-filter: blur(14px);
            transition: box-shadow 0.25s ease, background 0.25s ease;
            height: var(--header-h);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 20px rgba(15, 60, 84, 0.08);
            background: rgba(255, 255, 255, 0.98);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-h);
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .brand-name {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .brand-name-zh {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            letter-spacing: 0.02em;
        }

        .brand-name-en {
            font-size: 10px;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--weak);
            margin-top: 2px;
        }

        .desktop-nav ul {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .desktop-nav ul a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: #33434F;
            padding: 6px 2px;
            display: inline-flex;
            align-items: center;
        }

        .desktop-nav ul a:hover {
            color: var(--primary);
        }

        .desktop-nav ul li.is-current a {
            color: var(--primary);
            font-weight: 600;
        }

        .desktop-nav ul li.is-current a::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            width: 180px;
            height: 38px;
            background: #F2F7FA;
            border: 1px solid transparent;
            border-radius: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 12px;
            color: var(--weak);
            transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, width 0.2s ease;
        }

        .nav-search:hover {
            border-color: rgba(29, 107, 147, 0.3);
        }

        .nav-search:focus-within {
            width: 220px;
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.12);
        }

        .nav-search input {
            border: 0;
            background: transparent;
            padding: 0;
            font-size: 13px;
            width: 100%;
            height: 100%;
            line-height: 1;
        }

        .nav-search input:focus {
            outline: none;
            box-shadow: none;
        }

        .nav-login {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
        }

        .nav-login:hover {
            color: var(--primary);
        }

        .btn-header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 10px;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .btn-header-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 18px rgba(29, 107, 147, 0.22);
        }

        .btn-header-cta:active {
            transform: translateY(1px);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            left: 0;
            top: var(--header-h);
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--line);
            box-shadow: 0 18px 32px rgba(23, 61, 85, 0.08);
            z-index: 1000;
        }

        .menu-open .mobile-nav {
            display: block;
        }

        .mobile-nav-inner {
            padding: 18px 24px 28px;
        }

        .mobile-nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F2F7FA;
            border-radius: 8px;
            padding: 0 12px;
            margin-bottom: 10px;
            color: var(--weak);
            border: 1px solid transparent;
        }

        .mobile-nav-search input {
            height: 46px;
            border: 0;
            background: transparent;
            width: 100%;
            font-size: 15px;
            color: var(--text);
        }

        .mobile-nav-list li {
            border-bottom: 1px solid #EEF3F6;
        }

        .mobile-nav-list li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 48px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
        }

        .mobile-nav-list li.is-current a {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-nav-list li a i {
            color: var(--weak);
            font-size: 12px;
        }

        .mobile-nav-actions {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }

        .mobile-nav-actions .button {
            flex: 1;
            padding: 12px 16px;
            font-size: 14px;
        }

        .page-banner {
            position: relative;
            background: linear-gradient(100deg, rgba(245, 249, 252, 0.95) 10%, rgba(245, 249, 252, 0.55) 55%, rgba(35, 52, 63, 0.04) 90%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 76px 0 66px;
            border-bottom: 1px solid #E6EDF2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--muted);
            gap: 8px;
            margin-bottom: 30px;
        }

        .breadcrumb a {
            color: var(--muted);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb-sep {
            color: var(--weak);
        }

        .page-banner h1 {
            font-size: 38px;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .banner-lead {
            font-size: 18px;
            max-width: 640px;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 28px;
        }

        .banner-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .service-scope {
            padding: 92px 0 36px;
        }

        .service-scope .grid-x {
            align-items: center;
        }

        .scope-intro {
            padding-right: 24px;
        }

        .scope-intro .section-heading-bar {
            margin-bottom: 18px;
        }

        .scope-intro .section-title {
            margin-bottom: 14px;
        }

        .scope-copy {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.9;
            margin-top: 0;
            margin-bottom: 20px;
        }

        .scope-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 18px;
        }

        .scope-stat {
            padding-left: 16px;
            border-left: 2px solid var(--line);
        }

        .scope-stat strong {
            display: block;
            font-size: 28px;
            color: var(--primary);
            line-height: 1.2;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
        }

        .scope-stat span {
            font-size: 13px;
            color: var(--muted);
        }

        .scope-guide-card {
            background: var(--card-white);
            border: 1px solid rgba(217, 228, 234, 0.6);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 30px;
            margin: 0 0 0 auto;
            max-width: 480px;
        }

        .scope-guide-card h3 {
            font-size: 20px;
            margin-bottom: 16px;
        }

        .guide-card-item {
            display: flex;
            gap: 14px;
            padding: 15px 0;
            border-bottom: 1px solid #F0F4F7;
        }

        .guide-card-item:last-child {
            border-bottom: 0;
            padding-bottom: 0;
        }

        .guide-card-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .guide-card-item .item-title {
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            font-size: 14px;
        }

        .guide-card-item p {
            margin: 0;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        .service-detail-section {
            padding: 64px 0 0;
        }

        .service-row-block {
            padding: 44px 0;
        }

        .service-row-block + .service-row-block {
            border-top: 0;
        }

        .service-row-card {
            background: var(--card-white);
            border: 1px solid rgba(217, 228, 234, 0.4);
            border-radius: 22px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .service-row-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .service-row-card .grid-x {
            align-items: stretch;
        }

        .service-image-box {
            height: 100%;
            min-height: 340px;
            position: relative;
            background: var(--primary-light);
        }

        .service-image-box img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .service-row-card:hover .service-image-box img {
            transform: scale(1.02);
        }

        .service-image-label {
            position: absolute;
            left: 18px;
            top: 18px;
            z-index: 3;
        }

        .service-content-box {
            padding: 44px 46px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .service-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 600;
            color: var(--warm);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .service-eyebrow .eyebrow-number {
            color: var(--warm);
            font-size: 16px;
            font-weight: 700;
        }

        .service-content-box h2 {
            font-size: 24px;
            margin-bottom: 14px;
            color: var(--text);
        }

        .service-content-box .service-desc {
            font-size: 15px;
            line-height: 1.9;
            color: var(--muted);
            margin-top: 0;
            margin-bottom: 22px;
        }

        .service-points {
            margin-bottom: 26px;
        }

        .service-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .service-points li i {
            color: var(--accent-green);
            margin-top: 4px;
            font-size: 13px;
            width: 17px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
        }

        .service-content-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .service-table-section {
            padding: 72px 0 54px;
        }

        .service-table-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 30px;
        }

        .service-table-heading .section-title {
            margin-bottom: 0;
        }

        .table-wrap {
            overflow: hidden;
            border-radius: 18px;
            border: 1px solid rgba(217, 228, 234, 0.6);
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .table-responsive {
            overflow-x: auto;
        }

        .table {
            width: 100%;
            margin-bottom: 0;
            background: transparent;
            border-collapse: collapse;
            min-width: 820px;
        }

        .table th,
        .table td {
            padding: 15px 20px;
            border-right: 0;
            border-bottom: 0;
            vertical-align: middle;
        }

        .table th {
            background: var(--primary-light);
            font-size: 14px;
            color: var(--primary-dark);
            text-align: left;
            border-bottom: 1px solid #C9DFEA;
            font-weight: 600;
        }

        .table td {
            border-bottom: 1px solid #E9EFF3;
            font-size: 14px;
            color: var(--text);
            background: #fff;
        }

        .table tr:last-child td {
            border-bottom: 0;
        }

        .table tbody tr:hover td {
            background: #F7FAFC;
        }

        .table .table-step {
            color: var(--primary);
        }

        .process-section {
            padding: 62px 0 32px;
        }

        .process-section .section-heading {
            text-align: center;
        }

        .process-section .section-title {
            text-align: center;
        }

        .process-section .section-title,
        .process-section .section-sub-title {
            margin-left: auto;
            margin-right: auto;
        }

        .section-heading-center {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-heading-center .section-heading-bar {
            margin: 0 auto 18px;
        }

        .section-heading-center .section-title {
            margin-bottom: 10px;
        }

        .section-heading-center .section-sub-title {
            margin-left: auto;
            margin-right: auto;
        }

        .process-grid {
            margin-top: 18px;
        }

        .process-step {
            position: relative;
            padding: 20px 20px 20px 0;
        }

        .process-step::before {
            content: "";
            position: absolute;
            top: 46px;
            left: 15px;
            right: calc(100% - 40px);
            height: 2px;
            border-bottom: 2px dashed rgba(29, 107, 147, 0.28);
            z-index: 0;
        }

        .col:first-child .process-step::before,
        .cell:first-child .process-step::before {
            display: none;
        }

        .process-step-inner {
            position: relative;
            z-index: 1;
        }

        .step-ball {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 16px;
            box-shadow: 0 0 0 6px rgba(29, 107, 147, 0.1);
        }

        .process-step h3 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--text);
        }

        .process-step p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        .support-section {
            padding: 60px 0 16px;
        }

        .support-card {
            background: var(--card-white);
            border: 1px solid #D9E4EA;
            border-radius: 18px;
            padding: 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            margin-bottom: 22px;
        }

        .support-card .icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--accent-green-light);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .support-card h3 {
            font-size: 17px;
            margin-bottom: 6px;
        }

        .support-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }

        .faq-section {
            padding: 76px 0 50px;
        }

        .faq-section .section-heading {
            text-align: center;
            margin-bottom: 44px;
        }

        .faq-section .section-heading .section-heading-bar {
            margin: 0 auto 18px;
        }

        .faq-item {
            border: 1px solid #DDE6EC;
            background: #fff;
            border-radius: 14px;
            padding: 18px 18px;
            margin-bottom: 12px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item.active {
            border-color: rgba(29, 107, 147, 0.35);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 4px 0;
            background: transparent;
            min-height: 36px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
            transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }

        .faq-item.active .faq-icon {
            background: var(--accent-green-light);
            color: var(--accent-green);
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            padding: 10px 4px 4px;
            border-top: 1px solid #EDF3F6;
            margin-top: 10px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-icon i {
            transform: rotate(45deg);
        }

        .cta-band {
            padding: 20px 0 80px;
        }

        .cta-band-card {
            position: relative;
            background: #fff;
            border: 1px solid #D9E4EA;
            border-radius: 22px;
            padding: 44px 42px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 26px;
        }

        .cta-band-card .band-bg {
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(29, 107, 147, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-copy {
            position: relative;
            z-index: 1;
            max-width: 620px;
        }

        .cta-copy .soft-chip {
            margin-bottom: 14px;
        }

        .cta-copy h2 {
            font-size: 25px;
            margin-bottom: 8px;
        }

        .cta-copy p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
        }

        .cta-action {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: flex-start;
        }

        .cta-trust {
            font-size: 12px;
            color: var(--weak);
            display: flex;
            align-items: center;
            gap: 6px;
            max-width: 330px;
            line-height: 1.6;
        }

        .privacy-inline {
            font-size: 12px;
            color: var(--weak);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-top: 12px;
        }

        .privacy-inline i {
            color: var(--accent-green);
            font-size: 13px;
            margin-top: 3px;
        }

        .site-footer {
            background: #16282F;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 0;
            border-top: 3px solid var(--primary);
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.2s ease;
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-main {
            display: flex;
            gap: 40px;
            padding: 70px 0 44px;
            flex-wrap: wrap;
        }

        .footer-brand-box {
            width: 40%;
            flex-shrink: 0;
            padding-right: 24px;
        }

        .footer-brand-box .brand .brand-name-zh {
            color: #fff;
        }

        .footer-brand-box .brand .brand-mark {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin: 20px 0 0;
            line-height: 1.85;
            max-width: 420px;
        }

        .footer-group {
            min-width: 150px;
            flex: 1;
        }

        .footer-group h3 {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-group ul li {
            margin-bottom: 9px;
        }

        .footer-group ul li a {
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .footer-group ul li a i {
            font-size: 11px;
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.46);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.46);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .reveal {
            padding: 38px;
            border-radius: 16px;
            max-width: 520px;
            width: 92vw;
            background: #fff;
        }

        .reveal.login-reveal {
            max-width: 440px;
        }

        .reveal .close-button {
            color: var(--text);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            right: 14px;
            top: 14px;
            font-size: 18px;
        }

        .reveal .close-button:hover {
            background: var(--primary-light);
        }

        .modal-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            margin-bottom: 22px;
        }

        .modal-brand .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 12px;
        }

        .modal-brand h2 {
            font-size: 22px;
            margin-bottom: 6px;
        }

        .modal-brand p {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 0;
            max-width: 340px;
            text-align: center;
        }

        .form-field {
            margin-bottom: 18px;
        }

        .form-field label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 7px;
        }

        .form-field input,
        .form-field textarea {
            width: 100%;
            border: 1px solid var(--line) !important;
            border-radius: var(--radius-sm) !important;
            height: 46px;
            padding: 0 14px;
            font-size: 15px;
            background: #fff;
            box-shadow: none !important;
            transition: border-color 0.15s ease, box-shadow 0.15s ease;
            outline: none;
            color: var(--text);
        }

        .form-field textarea {
            min-height: 100px;
            height: auto;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.6;
        }

        .form-field input:focus,
        .form-field textarea:focus {
            border-color: var(--primary) !important;
            box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.14) !important;
        }

        .modal-submit {
            width: 100%;
            height: 48px;
            justify-content: center;
            margin-top: 8px;
        }

        .modal-login-submit {
            width: 100%;
            justify-content: center;
            margin-top: 14px;
        }

        .login-divider {
            text-align: center;
            font-size: 12px;
            color: var(--weak);
            margin-top: 18px;
            line-height: 1.7;
        }

        .privacy-note {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 12px;
            color: var(--weak);
            line-height: 1.7;
            margin-top: 14px;
        }

        .privacy-note i {
            color: var(--accent-green);
            margin-top: 3px;
            font-size: 13px;
        }

        .footer-anchor-extra {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--weak);
            margin-top: 22px;
        }

        .footer-anchor-extra i {
            color: var(--accent-green);
        }

        @media screen and (max-width: 1100px) {
            .desktop-nav ul {
                gap: 22px;
            }

            .nav-search {
                width: 150px;
            }

            .nav-search:focus-within {
                width: 180px;
            }
        }

        @media screen and (max-width: 1024px) {
            .header-main {
                gap: 14px;
            }

            .desktop-nav {
                display: none;
            }

            .nav-search,
            .nav-login {
                display: none;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .header-actions {
                gap: 10px;
            }

            .btn-header-cta {
                min-height: 42px;
                padding: 0 18px;
                font-size: 13px;
            }

            .page-banner {
                padding: 58px 0 44px;
            }

            .service-scope {
                padding: 70px 0 20px;
            }

            .scope-guide-card {
                margin-left: 0;
                margin-top: 28px;
                max-width: none;
            }
        }

        @media screen and (max-width: 900px) {
            .footer-brand-box {
                width: 100%;
                padding-right: 0;
            }

            .footer-group {
                min-width: 44%;
            }

            .service-row-card .grid-x {
                display: block;
            }

            .service-image-box {
                min-height: 280px;
                max-height: 360px;
            }

            .service-image-box img {
                position: relative;
            }

            .service-content-box {
                padding: 28px 28px 36px;
            }

            .service-table-section {
                padding-top: 40px;
            }
        }

        @media screen and (max-width: 720px) {
            :root {
                --header-h: 64px;
            }

            .header-main {
                height: var(--header-h);
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .brand-name-zh {
                font-size: 16px;
            }

            .btn-header-cta {
                font-size: 13px;
                padding: 0 14px;
            }

            .mobile-nav {
                top: var(--header-h);
            }

            .page-banner {
                padding: 40px 0 50px;
            }

            .breadcrumb {
                margin-bottom: 22px;
            }

            .page-banner h1 {
                font-size: 32px;
            }

            .banner-lead {
                font-size: 16px;
            }

            .banner-actions .button {
                width: 100%;
            }

            .section-title {
                font-size: 24px;
            }

            .service-scope {
                padding: 56px 0 12px;
            }

            .scope-intro {
                padding-right: 0;
            }

            .service-content-box {
                padding: 22px 20px 30px;
            }

            .service-image-box {
                min-height: 230px;
            }

            .service-content-box h2 {
                font-size: 21px;
            }

            .service-content-actions .button {
                width: 100%;
            }

            .service-table-section {
                padding-top: 24px;
            }

            .process-section {
                padding-top: 28px;
            }

            .process-step {
                padding: 6px 2px;
            }

            .process-step::before {
                display: none;
            }

            .support-card {
                flex-wrap: wrap;
            }

            .cta-band-card {
                padding: 30px 24px;
            }

            .cta-action .button {
                width: 100%;
            }

            .site-footer .footer-main {
                padding: 48px 0 34px;
                gap: 26px;
            }

            .footer-group {
                min-width: 100%;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

            .footer-bottom span + span::before {
                content: "·";
                margin: 0 8px;
                color: rgba(255,255,255,0.3);
            }
        }

        @media screen and (max-width: 480px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .btn-header-cta {
                font-size: 12px;
                padding: 0 11px;
            }

            .btn-header-cta i {
                display: none;
            }

            .brand-name-en {
                font-size: 9px;
            }

            .reveal {
                padding: 26px 20px 22px;
            }

            .page-banner h1 {
                font-size: 29px;
            }

            .reveal {
                width: 92vw;
            }
        }

/* roulang page: category4 */
:root {
        --primary: #1d6b93;
        --primary-hover: #15506f;
        --primary-soft: #eaf3f8;
        --primary-border: rgba(29, 107, 147, 0.18);
        --accent-well: #417163;
        --accent-soft: #e9f1ef;
        --accent-warm: #c47b4a;
        --bg-body: #f5f9fc;
        --bg-card: #ffffff;
        --text-main: #23343f;
        --text-secondary: #5b6c78;
        --text-weak: #94a3ae;
        --border-weak: #e1e9ef;
        --border-input: #d2dde3;
        --shadow-card: 0 2px 6px rgba(23, 61, 85, 0.04), 0 12px 28px rgba(23, 61, 85, 0.07);
        --shadow-hover: 0 6px 12px rgba(23, 61, 85, 0.08), 0 18px 40px rgba(23, 61, 85, 0.12);
        --radius-card: 16px;
        --radius-btn: 10px;
        --radius-input: 8px;
        --container-max: 1200px;
        --space-section: 96px;
        --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-stack);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-main);
        background: var(--bg-body);
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
        height: auto;
        border-radius: 12px;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color 0.18s ease;
    }
    a:hover {
        color: var(--primary-hover);
    }
    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: 100%;
        line-height: 1.5;
    }
    button {
        cursor: pointer;
        border: none;
        background: none;
    }
    ul {
        list-style: none;
    }
    .grid-container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(255, 255, 255, 0.94);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid #edf2f6;
        transition: box-shadow 0.2s ease;
    }
    .site-header.scrolled {
        box-shadow: 0 6px 24px rgba(23, 61, 85, 0.07);
    }
    .header-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 64px;
        gap: 24px;
        flex-wrap: nowrap;
    }
    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--primary-soft);
        color: var(--primary);
        font-size: 18px;
        flex-shrink: 0;
    }
    .brand-name {
        display: inline-flex;
        flex-direction: column;
        line-height: 1.2;
    }
    .brand-name-zh {
        font-size: 19px;
        font-weight: 600;
        color: var(--text-main);
        letter-spacing: 0.02em;
        white-space: nowrap;
    }
    .brand-name-en {
        font-size: 10px;
        letter-spacing: 0.12em;
        color: var(--text-weak);
        text-transform: lowercase;
        margin-top: 2px;
        font-weight: 400;
        white-space: nowrap;
    }
    .desktop-nav {
        display: flex;
        align-items: center;
    }
    .desktop-nav ul {
        display: flex;
        align-items: center;
        gap: 24px;
        margin: 0;
    }
    .desktop-nav ul li {
        margin: 0;
        display: inline-flex;
        align-items: center;
        height: 64px;
        position: relative;
    }
    .desktop-nav ul li a {
        font-size: 15px;
        font-weight: 500;
        color: #33434f;
        display: inline-flex;
        align-items: center;
        height: 64px;
        padding: 0 2px;
        transition: color 0.18s ease;
    }
    .desktop-nav ul li a:hover {
        color: var(--primary);
    }
    .desktop-nav ul li.is-current a {
        color: var(--primary);
        font-weight: 600;
    }
    .desktop-nav ul li.is-current::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--primary);
        border-radius: 3px 3px 0 0;
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }
    .nav-search {
        display: flex;
        align-items: center;
        height: 38px;
        min-width: 180px;
        max-width: 220px;
        width: auto;
        background: #f3f7fa;
        border: 1px solid #e3ebf0;
        border-radius: 20px;
        padding: 0 14px;
        gap: 8px;
        transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    }
    .nav-search:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.12);
        background: #ffffff;
    }
    .nav-search i {
        font-size: 14px;
        color: var(--text-weak);
        transition: color 0.18s ease;
    }
    .nav-search input {
        border: none;
        outline: none;
        background: transparent;
        font-size: 14px;
        color: var(--text-main);
        flex: 1;
        min-width: 0;
    }
    .nav-search input::placeholder {
        color: var(--text-weak);
        font-size: 13px;
    }
    .nav-login {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        padding: 6px 10px;
        border-radius: 8px;
        transition: background 0.18s, color 0.18s;
        white-space: nowrap;
    }
    .nav-login:hover {
        color: var(--primary);
        background: var(--primary-soft);
    }
    .btn-header-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--primary);
        color: #ffffff;
        border-radius: var(--radius-btn);
        padding: 12px 22px;
        font-size: 14px;
        font-weight: 600;
        white-space: nowrap;
        line-height: 1.2;
        transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
        box-shadow: 0 4px 14px rgba(29, 107, 147, 0.18);
    }
    .btn-header-cta:hover {
        background: var(--primary-hover);
        color: #ffffff;
        box-shadow: 0 8px 20px rgba(29, 107, 147, 0.26);
        transform: translateY(-1px);
    }
    .btn-header-cta:active {
        transform: translateY(1px);
        box-shadow: 0 2px 8px rgba(29, 107, 147, 0.18);
    }
    .menu-toggle {
        display: none;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--text-main);
        border-radius: 10px;
        transition: background 0.18s;
    }
    .menu-toggle:hover {
        background: var(--primary-soft);
    }
    .mobile-nav {
        display: none;
        background: #ffffff;
        border-top: 1px solid #edf2f6;
        box-shadow: 0 16px 30px rgba(23, 61, 85, 0.1);
    }
    .mobile-nav.open {
        display: block;
    }
    .mobile-nav-inner {
        padding: 18px 20px 26px;
    }
    .mobile-nav-search {
        display: flex;
        align-items: center;
        background: #f3f7fa;
        border: 1px solid var(--border-input);
        border-radius: 10px;
        padding: 0 14px;
        gap: 10px;
        height: 46px;
        margin-bottom: 16px;
    }
    .mobile-nav-search input {
        border: none;
        background: transparent;
        flex: 1;
        font-size: 15px;
        outline: none;
        color: var(--text-main);
    }
    .mobile-nav-list li {
        border-bottom: 1px solid #f0f3f6;
        line-height: 1;
    }
    .mobile-nav-list li:last-child {
        border-bottom: none;
    }
    .mobile-nav-list li a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 4px;
        font-size: 16px;
        font-weight: 500;
        color: var(--text-main);
    }
    .mobile-nav-list li a i {
        font-size: 14px;
        color: var(--text-weak);
    }
    .mobile-nav-list li.is-current a {
        color: var(--primary);
        font-weight: 600;
    }
    .mobile-nav-login {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        margin-top: 10px;
        border: 1px solid var(--border-input);
        border-radius: var(--radius-btn);
        height: 46px;
        color: var(--text-main);
        font-weight: 500;
        font-size: 15px;
    }
    .site-main {
        display: block;
        padding-bottom: 0;
    }
    .page-hero {
        padding: 68px 0 52px;
        position: relative;
        background: #ffffff;
        border-bottom: 1px solid var(--border-weak);
        overflow: hidden;
    }
    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(245, 249, 252, 0.95) 0%, rgba(245, 249, 252, 0.55) 40%, rgba(245, 249, 252, 0.25) 100%), url('/assets/images/backpic/back-2.webp') right center / auto 100% no-repeat;
        background-size: cover;
        background-position: center 30%;
        opacity: 0.55;
        z-index: 0;
    }
    .page-hero .grid-container {
        position: relative;
        z-index: 1;
    }
    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        color: var(--text-weak);
        margin-bottom: 22px;
    }
    .breadcrumb a {
        color: var(--text-secondary);
        font-weight: 400;
        transition: color 0.15s;
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb i.sep {
        font-size: 11px;
        color: #c3ced5;
        margin: 0 2px;
    }
    .breadcrumb .current {
        color: var(--primary);
        font-weight: 500;
    }
    .page-title {
        font-size: 32px;
        font-weight: 700;
        line-height: 1.35;
        color: var(--text-main);
        letter-spacing: -0.01em;
        margin-bottom: 12px;
    }
    .page-lead {
        font-size: 17px;
        line-height: 1.8;
        color: var(--text-secondary);
        max-width: 720px;
        margin-bottom: 30px;
    }
    .help-centre-card {
        background: #ffffff;
        border: 1px solid var(--primary-border);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        padding: 32px 30px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
        margin-bottom: 28px;
    }
    .help-centre-card-left {
        flex: 1;
        min-width: 260px;
    }
    .help-centre-card-left h2 {
        font-size: 20px;
        font-weight: 600;
        margin-bottom: 10px;
        color: var(--text-main);
    }
    .help-centre-card-left p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.75;
        max-width: 640px;
    }
    .help-centre-card-action {
        flex-shrink: 0;
        display: inline-flex;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 500;
        text-align: center;
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
        border-radius: var(--radius-btn);
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 600;
        transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
    }
    .btn-primary:hover {
        background: var(--primary-hover);
        color: #fff;
        box-shadow: 0 8px 18px rgba(29, 107, 147, 0.22);
    }
    .btn-outline {
        border: 1.5px solid var(--primary);
        color: var(--primary);
        border-radius: var(--radius-btn);
        padding: 11px 24px;
        background: transparent;
        font-size: 15px;
        font-weight: 600;
        transition: background 0.18s, color 0.18s, border-color 0.18s;
    }
    .btn-outline:hover {
        background: var(--primary-soft);
        color: var(--primary-hover);
        border-color: var(--primary-hover);
    }
    .btn-ghost {
        color: var(--primary);
        font-size: 15px;
        font-weight: 500;
        padding: 6px 2px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: color 0.18s;
    }
    .btn-ghost:hover {
        color: var(--primary-hover);
    }
    .btn-ghost i {
        transition: transform 0.18s;
        font-size: 13px;
    }
    .btn-ghost:hover i {
        transform: translateX(5px);
    }
    .btn-lg {
        padding: 15px 34px;
        font-size: 16px;
    }
    .btn-block {
        width: 100%;
    }
    .help-panel {
        padding: var(--space-section) 0;
    }
    .section-header {
        margin-bottom: 48px;
        max-width: 760px;
    }
    .section-kicker {
        display: inline-block;
        font-size: 13px;
        color: var(--primary);
        font-weight: 600;
        letter-spacing: 0.06em;
        margin-bottom: 12px;
        padding: 5px 14px;
        border-radius: 999px;
        background: var(--primary-soft);
    }
    .section-title {
        font-size: 30px;
        font-weight: 700;
        line-height: 1.4;
        color: var(--text-main);
        letter-spacing: -0.01em;
        margin-bottom: 16px;
    }
    .section-subtitle {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.8;
    }
    .faq-wrap {
        padding: 72px 0 20px;
        background: #ffffff;
        border-top: 1px solid var(--border-weak);
    }
    .faq-grid-columns {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
        align-items: start;
    }
    .faq-column {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: #ffffff;
        border: 1px solid var(--border-input);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: border-color 0.2s ease, box-shadow 0.2s ease;
        cursor: pointer;
    }
    .faq-item.open {
        border-color: var(--primary);
        box-shadow: 0 0 0 1px rgba(29, 107, 147, 0.08);
    }
    .faq-item-title {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 18px 20px;
        width: 100%;
        text-align: left;
        background: none;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        line-height: 1.5;
        border: none;
    }
    .faq-item-title .faq-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        border-radius: 50%;
        background: var(--primary-soft);
        color: var(--primary);
        font-size: 15px;
        transition: transform 0.25s ease, background 0.2s ease;
        flex-shrink: 0;
        font-style: normal;
        font-weight: 400;
        line-height: 1;
    }
    .faq-item.open .faq-item-title .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }
    .faq-item-body {
        display: none;
        padding: 0 60px 22px 64px;
        font-size: 14px;
        line-height: 1.85;
        color: var(--text-secondary);
        text-align: justify;
    }
    .faq-item.open .faq-item-body {
        display: block;
        animation: faqFade 0.24s ease;
    }
    @keyframes faqFade {
        from {
            opacity: 0;
            transform: translateY(-5px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    .contact-card {
        background: var(--primary-soft);
        border-radius: var(--radius-card);
        padding: 30px 28px;
        border: 1px solid rgba(29, 107, 147, 0.12);
        position: sticky;
        top: 100px;
    }
    .contact-card .card-title {
        font-size: 17px;
        font-weight: 600;
        margin-bottom: 16px;
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }
    .contact-card .card-title i {
        color: var(--primary);
    }
    .contact-card-list {
        list-style: none;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .contact-card-list li {
        padding-bottom: 14px;
        border-bottom: 1px solid rgba(29, 107, 147, 0.1);
        font-size: 14px;
        color: var(--text-main);
        line-height: 1.6;
    }
    .contact-card-list li:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .contact-card-list li strong {
        font-size: 13px;
        color: var(--text-secondary);
        display: block;
        margin-bottom: 4px;
        font-weight: 600;
    }
    .contact-card-list li a {
        color: var(--primary);
        font-weight: 500;
    }
    .contact-meta {
        margin-top: 22px;
        font-size: 12px;
        color: var(--text-weak);
        line-height: 1.6;
    }
    .section-doc {
        padding: 72px 0 20px;
    }
    .doc-columns {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .doc-column-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-secondary);
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 18px;
        letter-spacing: 0.03em;
    }
    .doc-column-title span.block-line {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }
    .doc-list-item {
        display: flex;
        align-items: center;
        padding: 16px 0;
        border-bottom: 1px dashed var(--border-weak);
        gap: 12px;
        transition: background 0.15s;
    }
    .doc-list-item:hover {
        background: rgba(245, 249, 252, 0.7);
    }
    .doc-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 46px;
        height: 46px;
        border-radius: 10px;
        background: var(--primary-soft);
        color: var(--primary);
        font-size: 20px;
        flex-shrink: 0;
    }
    .doc-info {
        flex: 1;
        min-width: 0;
    }
    .doc-name {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 2px;
        word-break: break-word;
    }
    .doc-desc {
        font-size: 12px;
        color: var(--text-weak);
    }
    .doc-action {
        flex-shrink: 0;
    }
    .doc-action .btn-download {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        padding: 8px 14px;
        border: 1px solid var(--primary);
        border-radius: 8px;
        background: transparent;
        cursor: pointer;
        transition: background 0.2s, color 0.2s;
    }
    .doc-action .btn-download:hover {
        background: var(--primary-soft);
    }
    .section-guide {
        padding: 62px 0 76px;
    }
    .guidelines {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 24px;
    }
    .guideline-card {
        background: #ffffff;
        border-radius: var(--radius-card);
        padding: 26px 24px;
        border: 1px solid #edf2f6;
        box-shadow: var(--shadow-card);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .guideline-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
    }
    .guideline-card i {
        font-size: 24px;
        color: var(--primary);
        margin-bottom: 16px;
    }
    .guideline-card h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .guideline-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
    }
    .cta-light {
        background: var(--primary-soft);
        border-radius: 24px;
        padding: 52px 0;
        margin-top: 32px;
        border: 1px solid rgba(29, 107, 147, 0.14);
        position: relative;
        overflow: hidden;
    }
    .cta-light::before {
        content: "";
        position: absolute;
        top: -80px;
        right: -60px;
        width: 240px;
        height: 240px;
        background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        opacity: 0.09;
        border-radius: 50%;
    }
    .cta-inner {
        text-align: left;
        position: relative;
        z-index: 1;
        max-width: 900px;
        margin: 0 auto;
    }
    .cta-title {
        font-size: 27px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.4;
        margin-bottom: 14px;
    }
    .cta-text {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.75;
        margin-bottom: 28px;
        max-width: 700px;
    }
    .cta-actions {
        display: flex;
        gap: 14px;
        align-items: center;
        flex-wrap: wrap;
    }
    .cta-privacy-note {
        margin-top: 30px;
        padding-top: 22px;
        border-top: 1px solid rgba(29, 107, 147, 0.12);
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.7;
    }
    .cta-privacy-note i {
        color: var(--primary);
        margin-right: 6px;
    }
    .site-footer {
        background: #153243;
        margin-top: 64px;
        border-top: 3px solid var(--primary);
    }
    .footer-main {
        display: flex;
        gap: 48px;
        flex-wrap: wrap;
        padding: 64px 0 44px;
    }
    .footer-brand-box {
        flex: 0 0 40%;
        max-width: 360px;
    }
    .footer-brand-box .brand-name-zh {
        color: #f7fafc;
        font-size: 20px;
    }
    .footer-brand-box .brand-name-en {
        color: rgba(200, 220, 238, 0.7);
    }
    .footer-brand-box .brand-mark {
        background: rgba(255, 255, 255, 0.12);
        color: #7eb6d9;
    }
    .footer-desc {
        color: rgba(214, 232, 245, 0.7);
        font-size: 14px;
        line-height: 1.8;
        margin-top: 20px;
        max-width: 320px;
    }
    .footer-group {
        flex: 0 1 auto;
        min-width: 140px;
    }
    .footer-group h3 {
        color: #eaf2f7;
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 18px;
        letter-spacing: 0.02em;
    }
    .footer-group ul {
        margin: 0;
        list-style: none;
    }
    .footer-group li {
        margin-bottom: 10px;
    }
    .footer-group li a {
        display: inline-flex;
        align-items: center;
        color: rgba(203, 228, 242, 0.72);
        font-size: 14px;
        line-height: 1.7;
        transition: color 0.18s ease;
        gap: 6px;
    }
    .footer-group li a:hover {
        color: #f5fafc;
    }
    .footer-group li a i {
        font-size: 10px;
        color: rgba(126, 182, 217, 0.7);
        margin-top: -1px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 20px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        flex-wrap: wrap;
        font-size: 13px;
        color: rgba(190, 217, 236, 0.75);
    }
    .footer-bottom a {
        color: rgba(190, 217, 236, 0.75);
    }
    .footer-bottom a:hover {
        color: #9ccfe9;
    }
    .footer-bottom .domain-text {
        color: rgba(190, 217, 236, 0.6);
        font-size: 12px;
        letter-spacing: 0.02em;
    }
    .scroll-top-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-size: 14px;
        background: transparent;
        padding: 6px 12px;
        border-radius: 8px;
        transition: background 0.18s;
    }
    .scroll-top-btn:hover {
        background: var(--primary-soft);
    }
    .reveal-override {
        border-radius: 16px;
        border: none;
        box-shadow: 0 24px 60px rgba(16, 42, 64, 0.2);
        overflow: hidden;
        padding: 0;
    }
    .reveal-override .close-button {
        color: var(--text-weak);
        background: rgba(232, 239, 244, 0.5);
        border-radius: 50%;
        width: 32px;
        height: 32px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        right: 14px;
        top: 14px;
        font-size: 16px;
        transition: background 0.18s, color 0.18s;
        line-height: 1;
    }
    .reveal-override .close-button:hover {
        background: var(--primary-soft);
        color: var(--primary);
    }
    .form-modal-box {
        padding: 48px 40px 36px;
    }
    .form-modal-box h2 {
        font-size: 22px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .form-modal-box .subtitle {
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 30px;
    }
    .form-field {
        margin-bottom: 20px;
    }
    label.form-label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.5;
    }
    label.form-label .optional {
        font-weight: 400;
        color: var(--text-weak);
    }
    .form-input {
        width: 100%;
        height: 46px;
        padding: 0 16px;
        border-radius: 8px;
        border: 1px solid var(--border-input);
        background: #fbfdfe;
        font-size: 15px;
        color: var(--text-main);
        outline: none;
        transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s;
    }
    textarea.form-input {
        height: auto;
        padding: 14px 16px;
        min-height: 110px;
        resize: vertical;
    }
    .form-input::placeholder {
        color: #aab6c0;
        font-size: 14px;
    }
    .form-input:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(29, 107, 147, 0.14);
        background: #ffffff;
    }
    .form-col {
        display: flex;
        flex-direction: column;
        margin-bottom: 20px;
    }
    .form-col label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.5;
    }
    .form-select-wrapper {
        position: relative;
    }
    .form-select-wrapper::after {
        content: "\f078";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        position: absolute;
        right: 18px;
        top: 50%;
        transform: translateY(-50%);
        pointer-events: none;
        color: var(--text-secondary);
        font-size: 11px;
    }
    select.form-input {
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
        padding-right: 42px;
        background-position: right 16px center;
        background-repeat: no-repeat;
        cursor: pointer;
        line-height: 1.2;
    }
    .option-gray {
        color: var(--text-weak);
    }
    .form-privacy {
        margin-top: 8px;
        display: flex;
        align-items: flex-start;
        gap: 8px;
        background: var(--primary-soft);
        border-radius: 10px;
        padding: 16px 16px;
        font-size: 12px;
        line-height: 1.7;
        color: var(--text-secondary);
        border: 1px solid transparent;
        flex: none;
        align-items: center;
    }
    .form-privacy i {
        color: var(--primary);
        font-size: 13px;
        margin-top: 0;
        flex-shrink: 0;
    }
    .btn-primary-lg {
        width: 100%;
        padding: 15px 24px;
        font-size: 16px;
        font-weight: 600;
        border-radius: var(--radius-btn);
        margin-top: 12px;
    }
    .data-protection-tag {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 18px;
        align-items: center;
    }
    .protection-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--bg-body);
        color: var(--text-secondary);
        padding: 6px 10px;
        border-radius: 7px;
        font-size: 12px;
    }
    .tag-pill {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        background: var(--primary-soft);
        color: var(--primary);
        border-radius: 999px;
        padding: 4px 12px;
        font-size: 12px;
        font-weight: 600;
    }
    @media screen and (max-width: 1024px) {
        .desktop-nav ul {
            gap: 16px;
        }
        .header-main {
            gap: 16px;
        }
        .nav-search {
            min-width: 160px;
            max-width: 180px;
        }
    }
    @media screen and (max-width: 900px) {
        .desktop-nav {
            display: none;
        }
        .nav-login {
            display: none;
        }
        .nav-search {
            display: none;
        }
        .menu-toggle {
            display: inline-flex;
        }
        .page-title {
            font-size: 28px;
        }
        .page-hero {
            padding: 48px 0 46px;
        }
    }
    @media screen and (max-width: 767px) {
        :root {
            --space-section: 64px;
        }
        .faq-grid-columns {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .faq-column {
            gap: 10px;
        }
        .doc-columns {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-main {
            flex-direction: column;
            gap: 32px;
            padding-top: 48px;
            padding-bottom: 28px;
        }
        .footer-brand-box {
            flex-basis: 100%;
            max-width: 100%;
        }
        .footer-group {
            min-width: 100%;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
        .cta-title {
            font-size: 24px;
        }
        .cta-light {
            padding: 36px 0;
        }
        .page-title {
            font-size: 24px;
        }
        .page-lead {
            font-size: 15px;
        }
        .section-title {
            font-size: 26px;
        }
        .help-centre-card {
            padding: 24px 20px;
            flex-direction: column;
            align-items: stretch;
            gap: 16px;
        }
        .form-modal-box {
            padding: 40px 26px 30px;
        }
    }
    @media screen and (max-width: 520px) {
        .grid-container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .btn-header-cta {
            padding: 10px 16px;
            font-size: 13px;
        }
        .brand-name-en {
            display: none;
        }
        .brand-name-zh {
            font-size: 17px;
        }
        .page-hero {
            padding: 38px 0 36px;
        }
        .section-title {
            font-size: 23px;
        }
    }