/* roulang page: index */
:root {
    --primary: #165A87;
    --primary-hover: #0F4A72;
    --primary-soft: #EAF2F7;
    --secondary: #12A5A0;
    --secondary-soft: #E5F6F5;
    --accent: #F0A93B;
    --accent-bg: #FFF4DE;
    --bg: #F6F9FC;
    --surface: #FFFFFF;
    --border: #DFE8F0;
    --text: #1A344C;
    --text-2: #5D748A;
    --text-3: #94A7B8;
    --dark: #0B2E40;
    --radius: 14px;
    --radius-lg: 18px;
    --radius-full: 999px;
    --shadow: 0 6px 18px rgba(16, 44, 70, .06);
    --shadow-hover: 0 12px 28px rgba(16, 44, 70, .12);
    --container: 1240px;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-stack);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: none; outline: none; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }

/* 通用标题 */
.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: .5px;
    margin-bottom: 10px;
}
.section-eyebrow::before { content: ""; width: 22px; height: 3px; border-radius: 3px; background: var(--secondary); }
.section-head h2 { font-size: 28px; font-weight: 800; line-height: 1.35; color: var(--dark); }
.section-head p { color: var(--text-2); margin-top: 12px; font-size: 15px; max-width: 640px; }
.section { padding: 92px 0; }

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 28px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    transition: all .25s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(22, 90, 135, .2); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(22, 90, 135, .3); }
.btn-outline { background: #fff; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(22, 90, 135, .15); }
.btn-light { background: #fff; color: var(--dark); }
.btn-light:hover { background: var(--primary-soft); color: var(--primary); }
.btn:focus-visible, .arrow-link:focus-visible, .nav-link:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}
.btn-block { width: 100%; }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px rgba(16, 44, 70, .03);
    height: 72px;
    display: flex;
    align-items: center;
}
.header-inner { display: flex; align-items: center; width: 100%; height: 72px; }
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 5px 12px rgba(22, 90, 135, .25);
}
.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: .3px;
    white-space: nowrap;
}
.main-nav { margin-left: 38px; display: flex; align-items: center; gap: 6px; flex: 1; }
.main-nav a {
    padding: 9px 15px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-2);
    position: relative;
    transition: color .2s, background .2s;
    white-space: nowrap;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.main-nav a.active { color: var(--primary); background: var(--primary-soft); }
.main-nav a.active::after {
    content: ""; width: 22px; height: 2.5px;
    background: var(--primary);
    border-radius: 4px;
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
}
.header-tools { display: flex; align-items: center; gap: 14px; margin-left: 12px; }
.header-search {
    display: flex;
    align-items: center;
    background: var(--primary-soft);
    border-radius: var(--radius-full);
    padding: 0 16px;
    height: 40px;
    width: 196px;
    transition: box-shadow .2s;
}
.header-search:focus-within { box-shadow: 0 0 0 2px rgba(22,90,135,.25); background: #fff; }
.header-search input { flex: 1; font-size: 13px; background: transparent; color: var(--text); }
.header-search input::placeholder { color: var(--text-3); }
.header-search button { color: var(--text-2); font-size: 14px; cursor: pointer; padding: 6px 0 6px 10px; transition: color .2s; }
.header-search button:hover { color: var(--primary); }
.btn-header { min-height: 40px; padding: 0 22px; }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    background: var(--primary-soft);
}
.nav-toggle span { width: 20px; height: 2px; background: var(--primary); border-radius: 2px; }

/* 抽屉层 */
.drawer-mask {
    position: fixed; inset: 0; background: rgba(11, 46, 64, .5);
    z-index: 150; opacity: 0; visibility: hidden; transition: all .3s;
}
.drawer-mask.open { opacity: 1; visibility: visible; }
.mobile-drawer {
    position: fixed; top: 0; right: -320px; width: 300px; height: 100vh;
    background: var(--surface); z-index: 180;
    display: flex; flex-direction: column;
    padding: 22px; box-shadow: -10px 0 30px rgba(16, 44, 70, .12);
    transition: right .35s ease;
}
.mobile-drawer.open { right: 0; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.drawer-head .logo-text { font-size: 18px; }
.drawer-close {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--primary-soft); color: var(--text);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 16px;
}
.drawer-search {
    display: flex; align-items: center;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-full); padding: 0 14px; height: 44px;
    margin-bottom: 26px;
}
.drawer-search input { flex: 1; font-size: 14px; }
.drawer-search span { color: var(--text-2); }
.drawer-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.drawer-nav a {
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    transition: all .2s;
}
.drawer-nav a:hover, .drawer-nav a.active { background: var(--primary-soft); color: var(--primary); }
.drawer-cta { margin-top: 20px; }

/* Hero */
.hero {
    position: relative;
    padding: 78px 0 76px;
    background:
        radial-gradient(circle at 88% 12%, rgba(18, 165, 160, .12) 0%, transparent 200px),
        radial-gradient(circle at 10% 90%, rgba(22, 90, 135, .08) 0%, transparent 260px),
        linear-gradient(180deg, #EDF4F8 0%, var(--bg) 100%);
    overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.03fr .97fr; gap: 64px; align-items: center; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--primary);
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 6px 15px;
    font-weight: 600;
    box-shadow: 0 3px 10px rgba(16, 44, 70, .05);
    margin-bottom: 22px;
}
.hero-badge i { color: var(--secondary); }
.hero h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.28;
    color: var(--dark);
    letter-spacing: -0.2px;
}
.hero h1 span { color: var(--primary); position: relative; }
.hero-sub { margin: 22px 0 0; font-size: 16px; color: var(--text-2); line-height: 1.9; max-width: 540px; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 34px; }
.trust-item { display: inline-flex; align-items: center; gap: 9px; font-size: 13px; color: var(--text-2); }
.trust-item i { color: var(--secondary); }
.hero-visual { position: relative; }
.hero-panel {
    position: relative;
    height: 440px;
    border-radius: 22px;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    box-shadow: var(--shadow-hover);
    border: 1px solid rgba(255,255,255,.5);
    overflow: hidden;
}
.hero-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(11, 46, 64, .22) 0%, rgba(11, 46, 64, .05) 48%, rgba(11, 46, 64, .55) 100%);
}
.hero-panel::after {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(255,255,255,.35);
    border-radius: 16px;
    pointer-events: none;
}
.panel-meta {
    position: absolute;
    left: 30px;
    right: 30px;
    bottom: 28px;
    background: rgba(255,255,255,.65);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 18px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark);
}
.panel-meta strong { font-size: 15px; display: block; }
.panel-meta span { font-size: 12px; color: var(--text-2); }
.panel-meta i { font-size: 18px; color: var(--secondary); width: 36px; height: 36px; border-radius: 9px; background: var(--secondary-soft); display: flex; align-items: center; justify-content: center; }
.hero-float {
    position: absolute;
    background: #fff;
    box-shadow: var(--shadow-hover);
    border-radius: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 17px;
}
.hero-float i { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.hero-float b { display: block; font-size: 13px; color: var(--dark); }
.hero-float span { font-size: 11px; color: var(--text-2); }
.hero-float-1 { top: 24px; left: -26px; animation: floatY 5s ease-in-out infinite; }
.hero-float-1 i { background: var(--secondary-soft); color: var(--secondary); }
.hero-float-2 { bottom: 120px; right: -28px; animation: floatY 6.4s 1s ease-in-out infinite; }
.hero-float-2 i { background: var(--accent-bg); color: var(--accent); }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* 痛点区 */
.pain-section {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.pain-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.pain-copy h2 { font-size: 27px; font-weight: 800; color: var(--dark); line-height: 1.4; }
.pain-copy p { margin-top: 16px; color: var(--text-2); font-size: 15px; line-height: 1.9; }
.pain-list { display: flex; flex-direction: column; gap: 16px; }
.pain-list li {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    padding: 16px 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 14px;
    color: var(--text);
    transition: transform .25s, box-shadow .25s;
}
.pain-list li:hover { transform: translateX(5px); box-shadow: var(--shadow); }
.pain-list i { color: var(--secondary); margin-top: 4px; font-size: 15px; }

/* 方案卡 */
.solutions-section { background: var(--bg); }
.solutions-wrap { display: grid; grid-template-columns: .95fr 1.05fr; gap: 24px; margin-top: 40px; align-items: stretch; }
.solution-lead {
    background: var(--primary);
    background-image: radial-gradient(circle at 85% 20%, rgba(255,255,255,.14) 0%, transparent 180px);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 10px 26px rgba(22, 90, 135, .18);
    position: relative;
    overflow: hidden;
}
.solution-lead .feature-icon {
    width: 52px; height: 52px;
    background: rgba(255,255,255,.14);
    border-radius: 13px;
    display: flex; align-items: center; justify-content: center;
    font-size: 23px; margin-bottom: 18px;
}
.solution-lead h3 { font-size: 24px; font-weight: 800; line-height: 1.45; }
.solution-lead p { color: rgba(255,255,255,.78); font-size: 14px; margin-top: 16px; line-height: 1.9; }
.solution-lead .arrow-link { color: #fff; margin-top: 18px; font-size: 14px; }
.solution-lead .arrow-link:hover { color: var(--accent); }
.solution-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow);
    transition: transform .3s, box-shadow .3s;
    display: flex;
    flex-direction: column;
    cursor: default;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-icon {
    width: 42px; height: 42px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; margin-bottom: 16px;
}
.feature-card h4 { font-size: 17px; font-weight: 800; color: var(--dark); }
.feature-card p { font-size: 13px; color: var(--text-2); line-height: 1.8; margin-top: 8px; flex: 1; }
.feature-card .feature-more { margin-top: 14px; font-size: 12px; font-weight: 600; color: var(--primary); opacity: 0; transform: translateX(-4px); transition: all .3s; display: inline-flex; align-items: center; gap: 6px; }
.feature-card:hover .feature-more { opacity: 1; transform: translateX(0); }

/* 数据区 */
.stats-section {
    background: var(--dark);
    background-image: linear-gradient(135deg, #0B2E40 0%, #14425E 100%);
    padding: 48px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after { content: ""; position: absolute; right: -15px; top: 12%; height: 76%; width: 1px; background: rgba(255,255,255,.18); }
.stat-item strong { font-size: 38px; font-weight: 800; color: #fff; display: block; letter-spacing: -1px; line-height: 1.2; }
.stat-item strong small { font-size: 20px; font-weight: 700; margin-left: 2px; color: var(--accent); }
.stat-item span { display: block; color: rgba(255,255,255,.68); font-size: 13px; margin-top: 10px; letter-spacing: .3px; }

/* 分类导览 */
.category-section { background: var(--bg); padding-bottom: 64px; }
.category-section .section-head { margin-bottom: 38px; }
.cat-grid { display: flex; flex-direction: column; gap: 28px; }
.cat-row { display: grid; grid-template-columns: 7fr 5fr; gap: 28px; align-items: stretch; }
.cat-row.reverse { grid-template-columns: 5fr 7fr; }
.cat-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .3s, box-shadow .3s;
    position: relative;
}
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.cat-card-large { display: grid; grid-template-columns: 1fr 1.08fr; min-height: 220px; }
.cat-row.reverse .cat-card-large { grid-template-columns: 1.08fr 1fr; }
.cat-row.reverse .cat-card-large .cat-img { order: 2; }
.cat-card-large .cat-img { min-height: 220px; overflow: hidden; background: var(--primary-soft); }
.cat-card-large .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.cat-card-large:hover .cat-img img { transform: scale(1.05); }
.cat-card-large .cat-info { padding: 30px 28px; display: flex; flex-direction: column; justify-content: center; }
.cat-info .badge {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    padding: 4px 11px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}
.cat-info h3 { font-size: 21px; font-weight: 800; color: var(--dark); }
.cat-desc { color: var(--text-2); font-size: 14px; line-height: 1.8; margin-top: 10px; }
.arrow-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 13px; color: var(--primary); margin-top: 16px; }
.arrow-link i { transition: transform .3s; }
.arrow-link:hover i { transform: translateX(4px); }
.cat-card-mini {
    min-height: 220px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    background: var(--primary-soft);
}
.cat-card-mini img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.cat-card-mini:hover img { transform: scale(1.06); }
.cat-card-mini .cat-mini-info {
    position: relative;
    z-index: 2;
    padding: 20px 22px;
    width: 100%;
    background: linear-gradient(to top, rgba(11,46,64,.86) 0%, rgba(11,46,64,.55) 60%, rgba(11,46,64,0) 100%);
    color: #fff;
}
.cat-card-mini .cat-mini-info .badge { background: rgba(255,255,255,.2); color: #fff; }
.cat-card-mini .cat-mini-info h3 { font-size: 18px; font-weight: 800; color: #fff; }
.cat-card-mini .cat-mini-info p { font-size: 12px; color: rgba(255,255,255,.75); margin-top: 2px; line-height: 1.6; }

/* 内容列表 / CMS */
.news-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.news-section .section-head { margin-bottom: 34px; display: flex; justify-content: space-between; align-items: flex-end; }
.news-more { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.news-more:hover i { transform: translateX(4px); }
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-featured {
    display: block;
    background: linear-gradient(120deg, var(--primary-soft), #f5fafd);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    position: relative;
    overflow: hidden;
    transition: box-shadow .3s, transform .3s;
}
.news-featured:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-featured::after { content: ""; position: absolute; right: -40px; bottom: -40px; width: 140px; height: 140px; border-radius: 50%; background: rgba(22,90,135,.05); }
.news-featured .news-label { font-size: 12px; font-weight: 800; color: var(--secondary); letter-spacing: 1px; }
.news-featured h3 { font-size: 20px; font-weight: 800; color: var(--dark); margin-top: 6px; }
.news-featured p { color: var(--text-2); font-size: 14px; margin-top: 8px; max-width: 900px; }
.news-meta-row { display: flex; gap: 16px; font-size: 12px; color: var(--text-3); margin-top: 15px; flex-wrap: wrap; }
.news-meta-row .tag { padding: 3px 9px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-full); font-weight: 600; color: var(--primary); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.news-item {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    transition: background .3s, box-shadow .3s, transform .3s;
}
.news-item:hover { background: #fff; box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.news-item .tag { align-self: flex-start; padding: 2px 9px; font-size: 11px; font-weight: 700; color: var(--primary); background: var(--primary-soft); border-radius: var(--radius-full); margin-bottom: 10px; }
.news-item h3 { font-size: 15px; font-weight: 700; color: var(--dark); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item p { font-size: 13px; color: var(--text-2); margin-top: 8px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.news-item .news-meta-row { font-size: 12px; margin-top: 14px; color: var(--text-3); border-top: 1px solid var(--border); padding-top: 10px; }
.news-empty { border: 1px dashed var(--border); border-radius: var(--radius-lg); padding: 44px 20px; text-align: center; color: var(--text-3); font-size: 15px; background: var(--bg); }

/* FAQ */
.faq-section { background: var(--surface); padding: 80px 0; }
.faq-wrap { max-width: 860px; margin: 40px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: 14px; background: var(--surface); overflow: hidden; transition: box-shadow .25s; }
.faq-item.active { box-shadow: var(--shadow); border-color: rgba(22,90,135,.35); }
.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    padding: 17px 20px;
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    gap: 14px;
    transition: color .2s;
    user-select: none;
}
.faq-q:hover { color: var(--primary); }
.faq-icon {
    width: 24px; height: 24px;
    border-radius: 7px;
    background: var(--primary-soft);
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; color: var(--primary);
    flex-shrink: 0;
    transition: all .3s;
}
.faq-item.active .faq-icon { background: var(--secondary); color: #fff; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s; }
.faq-answer p { padding: 0 20px 20px; font-size: 14px; color: var(--text-2); line-height: 1.9; }

/* CTA band */
.cta-section { padding: 76px 0; }
.cta-card {
    background: linear-gradient(120deg, #EDF4F9 0%, #F7FBF8 100%);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 56px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: "";
    position: absolute;
    right: -30px; top: -40px;
    width: 210px; height: 210px;
    background: radial-gradient(circle, rgba(18,165,160,.2) 0%, transparent 65%);
    border-radius: 50%;
}
.cta-card h2 { font-size: 25px; font-weight: 800; color: var(--dark); line-height: 1.4; }
.cta-card p { color: var(--text-2); margin-top: 8px; font-size: 14px; max-width: 620px; }
.cta-actions { display: flex; gap: 13px; flex-shrink: 0; flex-wrap: wrap; }

/* Footer */
.site-footer { background: var(--dark); color: rgba(255,255,255,.78); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 42px; padding-bottom: 44px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand .logo-mark { background: #fff; color: var(--dark); }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 13px; line-height: 1.9; max-width: 280px; color: rgba(255,255,255,.65); }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { font-size: 13px; color: rgba(255,255,255,.68); transition: color .2s; }
.footer-col a:hover { color: var(--secondary); }
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-item { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; }
.footer-contact-item i { color: var(--secondary); margin-top: 3px; width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.14);
    padding: 18px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 12px;
    color: rgba(255,255,255,.45);
    flex-wrap: wrap;
}
.footer-bottom a { color: rgba(255,255,255,.55); margin-left: 16px; }
.footer-bottom a:hover { color: var(--secondary); }

/* 弹窗 */
.modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(11,46,64,.58);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s, visibility .3s;
}
.modal-mask.open { opacity: 1; visibility: visible; }
.modal-card {
    width: 560px;
    max-width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    background: #fff;
    border-radius: 20px;
    padding: 34px 36px;
    box-shadow: 0 24px 60px rgba(11,46,64,.3);
    animation: modalUp .4s ease;
    position: relative;
}
@keyframes modalUp { 0% { opacity: 0; transform: translateY(24px); } 100% { opacity: 1; transform: translateY(0); } }
.modal-close {
    position: absolute;
    right: 18px; top: 18px;
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--bg);
    cursor: pointer;
    color: var(--text-2);
    display: flex; align-items: center; justify-content: center;
    transition: all .2s;
}
.modal-close:hover { background: var(--primary-soft); color: var(--primary); }
.modal-card h3 { font-size: 22px; font-weight: 800; color: var(--dark); }
.modal-card .modal-intro { font-size: 13px; color: var(--text-2); line-height: 1.7; margin: 10px 0 24px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 15px; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-field input, .form-field select, .form-field textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    height: 44px;
    padding: 0 14px;
    font-size: 14px;
    transition: border-color .2s, box-shadow .2s, background .2s;
}
.form-field textarea { height: 90px; padding-top: 12px; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(22,90,135,.12); }
.privacy-line { display: flex; align-items: flex-start; gap: 8px; margin: 18px 0 14px; font-size: 12px; color: var(--text-2); }
.privacy-line input { margin-top: 3px; accent-color: var(--primary); width: 15px; height: 15px; }
.privacy-line a { color: var(--primary); text-decoration: underline; }

/* 响应式 */
@media screen and (max-width: 1180px) {
    .main-nav { margin-left: 16px; gap: 2px; }
    .main-nav a { padding: 9px 10px; font-size: 14px; }
    .header-search { width: 158px; }
    .hero h1 { font-size: 35px; }
    .hero-panel { height: 400px; }
}
@media screen and (max-width: 1024px) {
    .main-nav, .header-search { display: none; }
    .nav-toggle { display: flex; }
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .hero-panel { height: 360px; max-width: 640px; }
    .pain-inner { grid-template-columns: 1fr; }
    .solutions-wrap { grid-template-columns: 1fr; }
    .cat-row, .cat-row.reverse { grid-template-columns: 1fr; }
    .cta-card { flex-direction: column; align-items: flex-start; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 38px 20px; }
    .stat-item:nth-child(2)::after { display: none; }
}
@media screen and (max-width: 768px) {
    .site-header { height: 64px; }
    .header-inner { height: 64px; }
    .section { padding: 56px 0; }
    .hero { padding: 48px 0; }
    .hero h1 { font-size: 28px; }
    .hero-float-1 { left: -4px; }
    .hero-float-2 { right: -4px; }
    .news-grid { grid-template-columns: 1fr; }
    .section-head h2 { font-size: 23px; }
    .solution-lead { padding: 28px 22px; }
    .feature-card { padding: 20px; }
    .footer-grid { grid-template-columns: 1fr; }
    .modal-card { padding: 26px 22px; }
    .cta-card { padding: 34px 26px; }
    .ds-none { display: none; }
}
@media screen and (max-width: 520px) {
    .container { padding: 0 18px; }
    .hero h1 { font-size: 25px; }
    .hero-panel { height: 280px; }
    .btn { min-width: 130px; }
    .hero-actions .btn { width: 48%; }
    .solution-cards { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px 10px; }
    .stat-item strong { font-size: 28px; }
    .cat-card-large, .cat-row.reverse .cat-card-large { grid-template-columns: 1fr; }
    .cat-card-large .cat-img { min-height: 150px; }
    .news-featured h3 { font-size: 17px; }
}

/* roulang page: category1 */
:root {
            --primary: #165A87;
            --primary-dark: #0E3E60;
            --primary-light: #E8F1F8;
            --secondary: #12A5A0;
            --secondary-light: #E0F5F4;
            --accent: #F0A93B;
            --accent-light: #FFF4DE;
            --bg: #F6F9FC;
            --card: #FFFFFF;
            --section-bg: #EEF5FA;
            --border: #DFE8F0;
            --text: #1A344C;
            --text-secondary: #5D748A;
            --text-light: #94A7B8;
            --footer-bg: #0B2E40;
            --footer-text: #AFC3D4;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 24px;
            --shadow-card: 0 6px 18px rgba(16, 44, 70, .06);
            --shadow-card-hover: 0 12px 28px rgba(16, 44, 70, .12);
            --container: 1240px;
            --transition: .3s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif; background-color: var(--bg); color: var(--text); font-size: 16px; line-height: 1.7; overflow-x: hidden; }
        a { text-decoration: none; color: inherit; transition: color .25s; }
        img { max-width: 100%; height: auto; display: block; border: 0; }
        ul { list-style: none; }
        button { font-family: inherit; border: none; cursor: pointer; background: none; }
        input, select, textarea { font-family: inherit; }

        .container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, .96); border-bottom: 1px solid var(--border); box-shadow: 0 2px 12px rgba(16, 44, 70, .03); }
        .header-inner { display: flex; height: 72px; align-items: center; gap: 24px; }
        .logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .logo-mark { width: 38px; height: 38px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 10px rgba(22, 90, 135, .18); }
        .logo-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: .01em; }
        .main-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; flex: 1; justify-content: center; }
        .main-nav a { display: inline-block; padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text-secondary); position: relative; line-height: 20px; white-space: nowrap; }
        .main-nav a:hover { color: var(--primary); }
        .main-nav a.active { color: var(--primary); font-weight: 600; }
        .main-nav a.active::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px; background: var(--primary); border-radius: 2px; }
        .header-tools { display: flex; align-items: center; gap: 14px; margin-left: auto; flex-shrink: 0; }
        .header-search { display: flex; align-items: center; background: #F0F4F8; border-radius: 999px; padding: 0 6px 0 16px; height: 40px; width: 220px; outline: 1px solid transparent; transition: .3s; }
        .header-search:focus-within { outline-color: var(--secondary); background: #fff; box-shadow: 0 0 0 3px rgba(18, 165, 160, .10); }
        .header-search input { border: none; outline: none; background: transparent; flex: 1; font-size: 13px; color: var(--text); }
        .header-search input::placeholder { color: #A2B5C6; }
        .header-search button { width: 34px; height: 34px; border-radius: 50%; background: #fff; color: var(--text-secondary); transition: .25s; min-width: 34px; }
        .header-search button:hover { background: var(--primary); color: #fff; }
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; border-radius: var(--radius-btn); min-height: 44px; padding: 0 20px; transition: .3s; border: 1px solid transparent; line-height: 1.4; white-space: nowrap; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(22, 90, 135, .18); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(22, 90, 135, .24); color: #fff; }
        .btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
        .btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }
        .btn-accent { background: var(--accent); color: #3D2E00; box-shadow: 0 4px 12px rgba(240, 169, 59, .2); }
        .btn-accent:hover { background: #D9962F; transform: translateY(-2px); color: #3D2E00; }
        .btn-header { min-height: 40px; font-size: 14px; padding: 0 18px; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 8px; border: 1px solid var(--border); background: #fff; transition: .2s; }
        .nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
        .nav-toggle:hover { border-color: var(--primary); }
        .mobile-drawer { position: fixed; top: 0; right: -320px; width: 300px; height: 100vh; background: #fff; z-index: 2000; transition: right .35s cubic-bezier(.4, 0, .2, 1); box-shadow: -8px 0 30px rgba(0, 0, 0, .1); padding: 24px; display: flex; flex-direction: column; }
        .mobile-drawer.open { right: 0; }
        .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
        .drawer-close { width: 36px; height: 36px; border-radius: 50%; background: #F0F4F8; display: flex; align-items: center; justify-content: center; color: var(--text); font-size: 16px; transition: .2s; }
        .drawer-close:hover { background: var(--primary); color: #fff; }
        .drawer-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; overflow-y: auto; }
        .drawer-nav a { padding: 14px 16px; border-radius: 10px; font-size: 16px; font-weight: 500; color: var(--text); transition: .2s; display: flex; align-items: center; gap: 12px; }
        .drawer-nav a i { width: 20px; color: var(--primary); text-align: center; }
        .drawer-nav a:hover { background: var(--primary-light); color: var(--primary); }
        .drawer-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
        .drawer-search { display: flex; gap: 8px; margin-top: 16px; }
        .drawer-search input { flex: 1; height: 44px; border-radius: 22px; border: 1px solid var(--border); padding: 0 18px; font-size: 14px; outline: none; }
        .drawer-search input:focus { border-color: var(--secondary); }
        .drawer-search button { width: 44px; height: 44px; border-radius: 50%; background: var(--secondary); color: #fff; font-size: 15px; }
        .drawer-cta { margin-top: 12px; width: 100%; }
        .drawer-overlay { position: fixed; inset: 0; background: rgba(11, 46, 64, .5); z-index: 1999; opacity: 0; visibility: hidden; transition: .3s; }
        .drawer-overlay.open { opacity: 1; visibility: visible; }

        /* Section base */
        .section { padding: 88px 0; position: relative; }
        .section-label, .eyebrow { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 30px; letter-spacing: .02em; }
        .section-title { font-size: 30px; font-weight: 800; line-height: 1.35; margin-top: 14px; color: var(--text); }
        .section-subtitle { font-size: 16px; color: var(--text-secondary); max-width: 640px; margin-top: 12px; }

        /* Breadcrumb / Page Band */
        .page-hero { padding: 48px 0 0; }
        .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--text-light); line-height: 24px; }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: #C0CFDC; }
        .breadcrumb .current { color: var(--text-secondary); }

        .category-hero { background: linear-gradient(135deg, #F0F6FB 0%, #E6F0F7 55%, #DDEBEA 100%); border-bottom: 1px solid var(--border); padding: 56px 0 64px; position: relative; overflow: hidden; }
        .category-hero::before { content: ""; position: absolute; top: -80px; right: -40px; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(18, 165, 160, .08) 0%, transparent 70%); }
        .category-hero::after { content: ""; position: absolute; bottom: -100px; left: 10%; width: 280px; height: 280px; border-radius: 50%; background: radial-gradient(circle, rgba(22, 90, 135, .06) 0%, transparent 70%); }
        .category-hero-wrap { position: relative; display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: center; }
        .category-hero-content h1 { font-size: 36px; line-height: 1.35; font-weight: 800; margin: 14px 0 16px; }
        .category-hero-content h1 span { color: var(--primary); }
        .category-hero-content .lead { font-size: 15px; color: var(--text-secondary); line-height: 1.8; max-width: 620px; margin-top: 10px; }
        .category-hero-visual { position: relative; border-radius: var(--radius-card); overflow: hidden; box-shadow: 0 12px 30px rgba(16, 44, 70, .14); }
        .category-hero-visual img { width: 100%; height: 240px; object-fit: cover; }
        .category-hero-badge { position: absolute; bottom: 12px; left: 12px; background: rgba(255, 255, 255, .92); backdrop-filter: blur(8px); border-radius: 10px; padding: 8px 16px; display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; color: var(--text); box-shadow: 0 4px 10px rgba(0, 0, 0, .08); }

        /* Two column layout */
        .page-layout { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 36px; padding: 60px 0 80px; align-items: start; }
        .side-anchor { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 6px; border-radius: var(--radius-card); background: #fff; border: 1px solid var(--border); padding: 10px; box-shadow: var(--shadow-card); z-index: 10; }
        .side-anchor a { width: 44px; height: 44px; border-radius: 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; color: var(--text-secondary); gap: 2px; transition: .2s; }
        .side-anchor a i { font-size: 15px; }
        .side-anchor a:hover, .side-anchor a.active { background: var(--primary-light); color: var(--primary); }

        /* Stats strip */
        .help-stats { background: var(--footer-bg); color: #fff; padding: 28px 0; }
        .help-stats .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
        .stats-item { text-align: center; padding: 8px 0; }
        .stats-num { font-size: 34px; font-weight: 800; line-height: 1.2; }
        .stats-num small { font-size: 18px; font-weight: 600; vertical-align: baseline; margin-left: 2px; color: #7FD6D2; }
        .stats-label { font-size: 13px; color: #9DB8CC; margin-top: 6px; }
        .stats-item + .stats-item { border-left: 1px solid rgba(255, 255, 255, .12); }

        /* Problem split */
        .service-content { padding: 0 0 96px; }
        .content-block { display: grid; gap: 48px; }
        .issue-block { margin-top: 56px; }
        .block-wrap { max-width: 880px; }

        .problem-answer-list { display: flex; flex-direction: column; gap: 8px; margin: 20px 0 0; }
        .problem-item { border: 1px solid var(--border); border-radius: var(--radius-card); background: #fff; overflow: hidden; transition: .3s; box-shadow: 0 2px 6px rgba(0, 0, 0, .03); }
        .problem-item:hover { border-color: #C4D8E6; box-shadow: var(--shadow-card); }
        .problem-header { display: flex; align-items: center; gap: 16px; padding: 16px 20px; cursor: pointer; }
        .problem-tag { min-width: 64px; height: 28px; background: var(--primary-light); color: var(--primary); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; padding: 0 8px; line-height: 1; gap: 4px; }
        .problem-title { font-size: 15px; font-weight: 500; color: var(--text); flex: 1; line-height: 1.6; }
        .problem-arrow { width: 24px; color: var(--text-light); transition: .3s; flex-shrink: 0; }
        .problem-desc { padding: 0 20px 16px; display: none; }
        .problem-desc.open { display: block; }
        .problem-desc p { font-size: 14px; color: var(--text-secondary); margin: 0 0 10px; line-height: 1.8; }
        .problem-desc .sol-list { display: grid; gap: 6px; margin-bottom: 8px; }
        .sol-list li { display: flex; gap: 8px; font-size: 13px; color: var(--text-secondary); }
        .sol-list li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--secondary); margin-top: 8px; flex-shrink: 0; }

        /* Flow steps */
        .service-flow { background: var(--section-bg); padding: 72px 0; border-radius: 0; }
        .flow-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 44px; }
        .flow-card { background: #fff; border-radius: var(--radius-card); border: 1px solid var(--border); padding: 28px 20px 22px; text-align: center; position: relative; transition: .3s; box-shadow: 0 4px 12px rgba(16, 44, 70, .04); }
        .flow-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .flow-step { position: absolute; top: -12px; left: 18px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 20px; box-shadow: 0 3px 8px rgba(22, 90, 135, .2); }
        .flow-icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-light); display: inline-flex; align-items: center; justify-content: center; color: var(--primary); font-size: 24px; margin: 8px 0 16px; }
        .flow-card:nth-child(2) .flow-icon { background: var(--secondary-light); color: var(--secondary); }
        .flow-card:nth-child(3) .flow-icon { background: var(--accent-light); color: #C77E12; }
        .flow-card:nth-child(4) .flow-icon { background: #EEF0F7; color: #7C6FD0; }
        .flow-card:nth-child(5) .flow-icon { background: #FDF0E4; color: #D77717; }
        .flow-title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
        .flow-text { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

        /* Contact methods */
        .contact-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
        .contact-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); padding: 32px 28px; transition: .3s; box-shadow: var(--shadow-card); }
        .contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .contact-card-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 23px; margin-bottom: 18px; }
        .contact-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .contact-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

        /* CTA banner */
        .cta-banner { padding: 0 0 80px; }
        .cta-box { background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: 20px; padding: 50px 56px; display: flex; align-items: center; justify-content: space-between; gap: 32px; position: relative; overflow: hidden; box-shadow: 0 16px 36px rgba(22, 90, 135, .2); }
        .cta-box::before { content: ""; position: absolute; top: -60px; right: 40px; width: 160px; height: 160px; border-radius: 50%; background: rgba(255, 255, 255, .06); }
        .cta-text h2 { color: #fff; font-size: 26px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
        .cta-text p { color: rgba(255, 255, 255, .82); font-size: 15px; max-width: 600px; line-height: 1.8; }
        .cta-action { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
        .btn-white { background: #fff; color: var(--primary); }
        .btn-white:hover { background: #E8F1F8; color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0, 0, 0, .15); }
        .btn-ghost-white { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .6); border-width: 1px; border-style: solid; }
        .btn-ghost-white:hover { background: rgba(255, 255, 255, .12); color: #fff; }

        /* FAQ */
        .faq-section { padding: 0 0 90px; }
        .faq-list { max-width: 900px; margin-top: 32px; border-top: 1px solid var(--border); }
        .faq-item { border-bottom: 1px solid var(--border); background: none; }
        .faq-btn { width: 100%; text-align: left; padding: 20px 8px; display: flex; justify-content: space-between; align-items: center; gap: 20px; cursor: pointer; transition: .2s; }
        .faq-btn:hover .faq-q { color: var(--primary); }
        .faq-q { font-size: 15px; font-weight: 600; color: var(--text); line-height: 1.5; transition: .2s; }
        .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: #F0F4F8; display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--primary); flex-shrink: 0; transition: .35s; }
        .faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; padding: 0; }
        .faq-item.open .faq-a { max-height: 320px; padding: 0; }
        .faq-a p { padding: 0 8px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.9; max-width: 800px; }

        /* CTA form modal */
        .consult-modal { position: fixed; inset: 0; z-index: 3000; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(11, 46, 64, .65); backdrop-filter: blur(4px); opacity: 0; visibility: hidden; transition: .35s; }
        .consult-modal.open { opacity: 1; visibility: visible; }
        .modal-card { background: #fff; border-radius: 20px; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; padding: 36px; box-shadow: 0 30px 80px rgba(0, 0, 0, .3); transform: scale(.97); transition: .3s; position: relative; }
        .consult-modal.open .modal-card { transform: scale(1); }
        .modal-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%; background: #F0F4F8; display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-size: 14px; transition: .2s; }
        .modal-close:hover { background: var(--primary); color: #fff; }
        .modal-caption { font-size: 13px; font-weight: 600; color: var(--secondary); background: var(--secondary-light); display: inline-flex; padding: 4px 12px; border-radius: 30px; }
        .modal-title { font-size: 23px; font-weight: 800; margin-top: 12px; line-height: 1.4; }
        .modal-desc { font-size: 14px; color: var(--text-secondary); margin-top: 8px; margin-bottom: 22px; line-height: 1.7; }
        .form-group { margin-bottom: 18px; }
        .form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
        .form-input, .form-select, .form-textarea { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 11px 16px; font-size: 15px; color: var(--text); background: #fff; transition: .25s; outline: none; }
        .form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(18, 165, 160, .12); }
        .form-textarea { min-height: 90px; resize: vertical; }
        .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .form-terms { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--text-secondary); margin: 4px 0 18px; }
        .form-terms input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--secondary); flex-shrink: 0; }
        .form-terms a { color: var(--primary); text-decoration: underline; }
        .form-submit { width: 100%; min-height: 48px; font-size: 16px; }
        .submit-success { text-align: center; padding: 28px 10px; }
        .success-icon { width: 68px; height: 68px; background: var(--secondary-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--secondary); font-size: 30px; margin: 0 auto 18px; }
        .success-title { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
        .success-text { font-size: 14px; color: var(--text-secondary); }
        form .hidden-section { display: none; }

        /* Footer */
        .site-footer { background: var(--footer-bg); color: var(--footer-text); padding: 64px 0 0; position: relative; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
        .footer-brand .logo-text { color: #fff; font-size: 22px; }
        .footer-brand .logo-mark { width: 42px; height: 42px; background: rgba(255, 255, 255, .12); color: #7FD6D2; border: 1px solid rgba(255, 255, 255, .10); box-shadow: none; }
        .footer-brand p { font-size: 14px; line-height: 1.9; margin-top: 14px; max-width: 340px; opacity: .85; }
        .footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 18px 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; font-size: 13px; color: #7E9BB0; }
        .footer-bottom a { color: #7E9BB0; transition: .2s; }
        .footer-bottom a:hover { color: #fff; }
        .footer-contact-item { display: flex; align-items: center; gap: 12px; font-size: 14px; padding: 4px 0; }
        .footer-contact-item i { width: 20px; color: #7FD6D2; text-align: center; flex-shrink: 0; }

        /* Code / table */
        .describe-steps { margin: 18px 0 10px; display: grid; gap: 12px; }
        .describe-step-box { display: flex; gap: 14px; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; transition: .25s; box-shadow: 0 2px 8px rgba(16, 44, 70, .03); }
        .describe-step-box:hover { box-shadow: var(--shadow-card); border-color: #C9DBE8; }
        .step-no { width: 32px; height: 32px; border-radius: 50%; background: var(--secondary); color: #fff; font-size: 13px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-weight: 600; }
        .step-content h4 { font-size: 15px; font-weight: 700; color: var(--text); letter-spacing: 0; line-height: 32px; }
        .step-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
        .info-highlight { background: var(--primary-light); border-left: 4px solid var(--primary); border-radius: 0 12px 12px 0; padding: 20px 24px; margin: 24px 0 8px; display: flex; align-items: flex-start; gap: 14px; }
        .info-highlight i { color: var(--primary); font-size: 20px; margin-top: 2px; }
        .info-highlight p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; margin: 0; }

        .category-nav-more { margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--border); }
        .category-nav-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 16px; }
        .category-tags { display: flex; flex-wrap: wrap; gap: 10px; }
        .category-tags a { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: #fff; border: 1px solid var(--border); border-radius: 999px; font-size: 13px; color: var(--text-secondary); transition: .25s; font-weight: 500; }
        .category-tags a i { color: var(--primary); font-size: 12px; }
        .category-tags a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(22, 90, 135, .08); }
        .category-tags a.current { background: var(--primary-light); border-color: var(--primary); color: var(--primary); font-weight: 600; }

        h2.section-title, h3.title-inner { }
        .anchor-title { font-size: 24px; font-weight: 800; line-height: 1.4; margin: 0 0 8px; padding-left: 14px; border-left: 4px solid var(--primary); }
        .anchor-sub { font-size: 15px; color: var(--text-secondary); max-width: 700px; margin-bottom: 18px; }
        .text { font-size: 15px; color: var(--text-secondary); }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: rgba(22, 90, 135, .25); border-radius: 3px; }

        /* Section CTA bottom preview */
        .bottom-note { margin-top: 60px; background: var(--section-bg); border-radius: 20px; padding: 44px 40px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; }
        .bottom-note h3 { font-size: 23px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
        .bottom-note p { font-size: 15px; color: var(--text-secondary); }
        /* responsive */
        @media (max-width: 1200px) {
            .category-hero-wrap { grid-template-columns: 1fr 320px; }
        }
        @media (max-width: 1024px) {
            .section { padding: 72px 0; }
            .category-hero-wrap { grid-template-columns: 1fr; gap: 32px; }
            .category-hero-visual { max-width: 520px; }
            .category-hero { padding: 44px 0 48px; }
            .main-nav { gap: 0; }
            .main-nav a { padding: 8px 12px; font-size: 14px; }
            .header-search { width: 180px; }
            .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 36px; }
            .page-layout { grid-template-columns: 52px minmax(0, 1fr); gap: 24px; }
            .contact-methods { grid-template-columns: 1fr; gap: 16px; }
            .contact-card { padding: 24px; }
            .flow-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        }
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .container { padding: 0 20px; }
            .header-inner { flex-wrap: nowrap; height: 64px; gap: 10px; }
            .logo-text { font-size: 17px; }
            .logo-mark { width: 32px; height: 32px; font-size: 14px; }
            .main-nav { display: none; }
            .header-tools { margin-left: auto; gap: 8px; }
            .header-search { display: none; }
            .btn-header { display: inline-flex; font-size: 13px; padding: 0 14px; }
            .nav-toggle { display: flex; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 10px; }
            .stats-num { font-size: 24px; }
            .stats-label { font-size: 12px; line-height: 1.4; }
            .cta-box { flex-direction: column; padding: 32px 24px; text-align: center; gap: 18px; }
            .cta-action { flex-direction: column; width: 100%; }
            .cta-action .btn { width: 100%; }
            .page-hero .breadcrumb { overflow-x: auto; white-space: nowrap; padding-bottom: 6px; }
            .category-hero h1 { font-size: 27px; }
            .section-title { font-size: 24px; line-height: 1.5; }
            .faq-list { margin-top: 26px; }
            .anchor-title { font-size: 21px; }
            .contact-methods { grid-template-columns: 1fr; }
            .page-layout { grid-template-columns: 1fr; gap: 14px; }
            .side-anchor { display: none; }
            .mobile-drawer .drawer-cta,
            .mobile-drawer .drawer-search { display: flex; }
            .flow-grid { grid-template-columns: 1fr; gap: 14px; }
            .flow-card { padding: 24px 18px; }
            .category-nav-more { margin-top: 48px; padding-top: 24px; }
            .form-grid { grid-template-columns: 1fr; gap: 2px; }
            .modal-card { padding: 24px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
            .site-footer { padding-top: 40px; }
            .category-hero .lead { font-size: 14px; }
            .footer-grid > div:first-child { order: 1; display: static; }
            .footer-contact { gap: 2px; display: flex; flex-direction: column; gap: 4px; }
            .footer-contact-item { padding: 2px 0; }
            .category-hero-visual img { height: 200px; object-position: center 20%; }
            .bottom-note { grid-template-columns: 1fr; padding: 28px 22px; text-align: center; }
            .bottom-note .btn { width: 100%; }
        }
        @media (max-width: 480px) {
            .btn-header { display: none; }
            .page-layout { grid-template-columns: 1fr; gap: 20px; }
            .help-stats { overflow-x: hidden; }
            .help-stats .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 18px; }
            .stats-item:nth-child(3) { border-top: 1px solid rgba(255, 255, 255, .12); border-left: none; }
            .help-stats .stats-grid { }
            .stats-item + .stats-item { border-left: none; }
            .help-stats .stats-item:nth-child(3) ~ .stats-item { border-left: none; }
            .problem-header { align-items: flex-start; }
            .problem-tag { min-width: auto; white-space: nowrap; }
            .category-hero h1 { font-size: 24px; }
            .faq-q { font-size: 14px; }
            .faq-icon { width: 24px; height: 24px; flex-shrink: 0; min-width: 24px; }
            .cta-text h2 { font-size: 21px; }
            .info-highlight { flex-direction: column; gap: 6px; font-size: 14px; }
        }

/* roulang page: article */
:root {
    --primary: #165A87;
    --primary-dark: #0B2E40;
    --accent: #12A5A0;
    --highlight: #F0A93B;
    --bg: #F6F9FC;
    --surface: #FFFFFF;
    --surface-soft: #EAF2F7;
    --border: #DFE8F0;
    --text-strong: #1A344C;
    --text: #5D748A;
    --text-weak: #94A7B8;
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-input: 24px;
    --shadow-card: 0 6px 18px rgba(16, 44, 70, .06);
    --shadow-card-hover: 0 12px 28px rgba(16, 44, 70, .12);
    --space-section: 96px;
    --container: 1240px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color .2s ease;
}
a:hover {
    color: var(--accent);
}
img {
    max-width: 100%;
    display: block;
    border-radius: 14px;
}
ul, ol {
    padding-left: 1.25rem;
}
button, input {
    font-family: inherit;
    font-size: inherit;
}
.container {
    width: min(100% - 48px, var(--container));
    margin-inline: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 22px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .25s ease, color .25s ease, box-shadow .25s ease, border-color .25s ease, transform .2s ease;
    outline: none;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: #0f4a72;
    color: #fff;
    box-shadow: 0 8px 20px rgba(22, 90, 135, .2);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: rgba(22, 90, 135, .45);
}
.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(22, 90, 135, .06);
}
.btn-light {
    background: #fff;
    color: var(--primary);
    border-color: var(--border);
}
.btn-light:hover {
    background: var(--surface-soft);
    color: var(--primary);
}
.btn-dark {
    background: var(--primary-dark);
    color: #fff;
}
.btn-dark:hover {
    background: #133446;
    color: #fff;
}
.btn:focus-visible,
.header-search button:focus-visible,
.nav-toggle:focus-visible,
.footer-bottom a:focus-visible,
.main-nav a:focus-visible {
    outline: 2px solid var(--highlight);
    outline-offset: 3px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(16, 44, 70, .04);
}
.header-inner {
    display: flex;
    align-items: center;
    width: min(100% - 48px, var(--container));
    margin-inline: auto;
    min-height: 72px;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(22, 90, 135, .22);
}
.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary-dark);
    white-space: nowrap;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-left: 8px;
    flex: 1;
}
.main-nav a {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: #38566b;
    padding: 10px 2px;
    white-space: nowrap;
}
.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 100%;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
}
.main-nav a:hover {
    color: var(--primary);
}
.main-nav a.active {
    color: var(--primary);
    font-weight: 700;
}
.main-nav a.active::after,
.main-nav a:hover::after {
    transform: scaleX(1);
}
.header-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}
.header-search {
    display: flex;
    align-items: center;
    background: #f2f6fa;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0 5px 0 16px;
    height: 42px;
    min-width: 190px;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.header-search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(18, 165, 160, .12);
}
.header-search input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    color: var(--text-strong);
    width: 100%;
}
.header-search input::placeholder {
    color: var(--text-weak);
}
.header-search button {
    border: none;
    background: var(--primary);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    cursor: pointer;
    font-size: 13px;
    transition: background .2s ease;
}
.header-search button:hover {
    background: var(--accent);
}
.btn-header {
    min-height: 42px;
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 14px;
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 10px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease;
}
.site-header.menu-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.site-header.menu-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}
.site-header.menu-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Breadcrumb banner */
.article-banner {
    background:
        linear-gradient(105deg, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .78) 48%, rgba(255, 255, 255, .35) 100%),
        url("/assets/images/backpic/back-2.png") center/cover no-repeat;
    padding: 52px 0 40px;
    border-bottom: 1px solid var(--border);
}
.breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0;
    gap: 8px;
    font-size: 14px;
    color: var(--text-weak);
}
.breadcrumb-list li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.breadcrumb-list a {
    color: var(--text);
}
.breadcrumb-list a:hover {
    color: var(--primary);
}
.breadcrumb-list .bc-sep {
    color: #c3d0db;
    font-size: 12px;
}
.breadcrumb-list .current {
    color: var(--text-strong);
    font-weight: 600;
    max-width: 420px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

/* Article main layout */
.article-section {
    padding: 50px 0 var(--space-section);
}
.article-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 44px;
}
.article-main-col {
    min-width: 0;
}
.article-body-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 44px 48px;
    margin-bottom: 32px;
}
.article-heading .article-title {
    font-size: 34px;
    line-height: 1.4;
    color: var(--primary-dark);
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 22px;
    color: var(--text-weak);
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 18px;
    margin-bottom: 28px;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-item i {
    color: var(--accent);
    font-size: 13px;
}
.meta-item .official-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(18, 165, 160, .12);
    color: #0f8a86;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
}

/* Article content typography */
.article-content {
    font-size: 16px;
    line-height: 1.95;
    color: #2b4359;
    word-break: break-word;
}
.article-content p {
    margin-bottom: 1.25em;
}
.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--primary-dark);
    font-weight: 800;
    line-height: 1.5;
    margin: 1.6em 0 .7em;
}
.article-content h2 {
    font-size: 23px;
    border-left: 4px solid var(--primary);
    padding-left: 14px;
}
.article-content h3 {
    font-size: 20px;
}
.article-content h4 {
    font-size: 17px;
}
.article-content a {
    text-decoration: underline;
    text-underline-offset: 4px;
}
.article-content a:hover {
    color: var(--accent);
}
.article-content ul,
.article-content ol {
    margin-bottom: 1.4em;
}
.article-content li {
    margin-bottom: .4em;
}
.article-content blockquote {
    background: #f2f7fa;
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 1.5em 0;
    color: #416181;
    font-style: normal;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    margin: 1.6em 0;
    overflow: hidden;
    border-radius: 12px;
    border: 1px solid var(--border);
}
.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-content th {
    background: #eef5fa;
    font-weight: 700;
    color: var(--primary-dark);
}
.article-content img {
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(16, 44, 70, .08);
    margin: 1.6em 0;
}
.article-content code {
    background: #edf2f7;
    color: var(--primary);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: .92em;
}
.article-content pre {
    background: #0e2a3a;
    color: #d6ecf7;
    padding: 20px;
    border-radius: 14px;
    overflow-x: auto;
    margin: 1.5em 0;
    font-size: 14px;
    line-height: 1.7;
}
.article-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}
.article-content hr {
    border: none;
    height: 1px;
    background: var(--border);
    margin: 2em 0;
}
.article-content .aligncenter {
    margin: 1.6em auto;
}
.article-content figcaption {
    text-align: center;
    color: var(--text-weak);
    font-size: 13px;
    margin-top: -0.8em;
}

/* Not found */
.article-empty {
    text-align: center;
    padding: 40px 24px 32px;
}
.article-empty .empty-icon {
    font-size: 52px;
    color: #b9cbda;
    margin-bottom: 18px;
    display: block;
}
.article-empty h2 {
    font-size: 26px;
    color: var(--primary-dark);
    margin-bottom: 10px;
}
.article-empty p {
    color: var(--text);
    margin-bottom: 24px;
}

/* Article footer tags */
.article-bottom {
    margin-top: 32px;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid var(--border);
    padding-top: 22px;
    margin-bottom: 24px;
}
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #eff5fa;
    color: var(--text);
    border-radius: 999px;
    font-size: 13px;
    padding: 5px 14px;
}

/* Related cards */
.related-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 30px;
    margin-bottom: 30px;
}
.related-block .block-title {
    font-size: 21px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.related-block .block-title i {
    color: var(--accent);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.related-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
    display: block;
}
.related-card img {
    width: 100%;
    height: 128px;
    object-fit: cover;
    border-radius: 0;
}
.related-card .rc-body {
    padding: 14px 16px;
}
.related-card .rc-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.5;
    margin-bottom: 6px;
    transition: color .2s;
}
.related-card .rc-desc {
    font-size: 13px;
    color: var(--text-weak);
    line-height: 1.5;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}
.related-card:hover .rc-title {
    color: var(--primary);
}
.back-catalog {
    display: flex;
}

/* CTA band */
.article-cta {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 34px 38px;
    box-shadow: 0 6px 18px rgba(16, 44, 70, .06);
}
.article-cta h2 {
    font-size: 22px;
    color: var(--primary-dark);
    font-weight: 800;
    margin-bottom: 6px;
}
.article-cta p {
    color: var(--text);
    font-size: 14px;
}
.article-cta .cta-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    flex-shrink: 0;
}

/* Sidebar */
.article-side {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.side-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 26px;
}
.side-card .side-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 12px;
}
.side-card .side-title i {
    color: var(--accent);
    font-size: 18px;
}
.side-card p {
    font-size: 14px;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.8;
}
.side-card .btn {
    width: 100%;
}
.side-category .cat-badge {
    display: inline-block;
    background: #edf4fa;
    color: var(--primary);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    padding: 3px 14px;
    margin-bottom: 14px;
}
.side-help {
    background: linear-gradient(145deg, #e9f5f9 0%, #f3fafd 100%);
    border-color: #c7e0ea;
}
.side-help .side-title i {
    color: var(--highlight);
}
.side-link-list {
    list-style: none;
    padding: 0;
}
.side-link-list li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
}
.side-link-list li:last-child {
    border-bottom: none;
}
.side-link-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    color: var(--text-strong);
    font-weight: 500;
}
.side-link-list a i {
    color: var(--accent);
    font-size: 12px;
    opacity: 0;
    transition: opacity .2s ease, transform .2s ease;
}
.side-link-list a:hover {
    color: var(--primary);
}
.side-link-list a:hover i {
    opacity: 1;
    transform: translateX(4px);
}

/* Footer */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, .8);
    padding: 58px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand .logo .logo-text {
    color: #fff;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .65);
    max-width: 300px;
}
.footer-col {
    min-width: 0;
}
.footer-title {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col ul a {
    color: rgba(255, 255, 255, .6);
    font-size: 14px;
    transition: color .2s ease, padding-left .2s ease;
}
.footer-col ul a:hover {
    color: #8ad7dc;
    padding-left: 4px;
}
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, .65);
}
.footer-contact-item i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding: 18px 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, .45);
}
.footer-bottom a {
    color: rgba(255, 255, 255, .55);
    transition: color .2s ease;
}
.footer-bottom a:hover {
    color: #8ad7dc;
}

/* Section utilities */
.section {
    padding: var(--space-section) 0;
}

@media (max-width: 1200px) {
    .article-grid {
        grid-template-columns: minmax(0, 1fr) 300px;
        gap: 28px;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
    }
    .footer-col:last-child {
        grid-column: span 2;
    }
}
@media (max-width: 1024px) {
    .header-inner {
        gap: 16px;
    }
    .main-nav {
        display: none;
        position: fixed;
        top: 72px;
        right: 0;
        width: min(320px, 86vw);
        height: calc(100vh - 72px);
        background: #fff;
        z-index: 99;
        box-shadow: -8px 0 24px rgba(16, 44, 70, .08);
        flex-direction: column;
        align-items: flex-start;
        padding: 32px 26px;
        gap: 8px;
        border-left: 1px solid var(--border);
        transform: translateX(100%);
        transition: transform .3s ease;
    }
    .site-header.menu-open .main-nav {
        display: flex;
        transform: translateX(0);
    }
    .main-nav a {
        width: 100%;
        font-size: 16px;
        padding: 13px 6px;
        border-bottom: 1px solid #f0f4f8;
    }
    .main-nav a.active::after {
        transform: none;
    }
    .header-search {
        display: none;
    }
    .btn-header {
        display: inline-flex;
    }
    .nav-toggle {
        display: flex;
    }
    .article-grid {
        grid-template-columns: 1fr;
    }
    .article-body-card {
        padding: 34px 30px;
    }
    .article-side {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 767px) {
    :root {
        --space-section: 56px;
    }
    .container {
        width: min(100% - 28px, var(--container));
    }
    .header-inner {
        min-height: 64px;
        width: min(100% - 28px, var(--container));
    }
    .site-header .header-tools .btn-header {
        padding: 0 14px;
        font-size: 13px;
        min-height: 38px;
    }
    .logo-text {
        font-size: 17px;
    }
    .logo-mark {
        width: 34px;
        height: 34px;
        font-size: 15px;
    }
    .nav-toggle {
        width: 36px;
        height: 36px;
    }
    .article-banner {
        padding: 34px 0 24px;
    }
    .article-grid {
        grid-template-columns: 1fr;
    }
    .article-body-card {
        padding: 24px 20px;
        border-radius: 14px;
    }
    .article-heading .article-title {
        font-size: 26px;
        line-height: 1.45;
    }
    .article-meta {
        gap: 10px 16px;
        font-size: 13px;
    }
    .article-content {
        font-size: 15px;
    }
    .article-content h2 {
        font-size: 20px;
    }
    .article-content img {
        border-radius: 12px;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .article-cta {
        flex-direction: column;
        padding: 26px 22px;
        text-align: center;
    }
    .article-cta .cta-links {
        justify-content: center;
    }
    .article-cta .btn {
        width: 100%;
    }
    .back-catalog .btn {
        width: 100%;
    }
    .article-side {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-col:last-child {
        grid-column: auto;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        padding: 16px 8px;
        text-align: center;
    }
}
@media (max-width: 480px) {
    .header-inner {
        width: min(100% - 20px, var(--container));
        gap: 10px;
    }
    .logo-text {
        font-size: 15px;
    }
    .btn-header {
        font-size: 12px;
        padding: 0 12px;
    }
    .btn-header i {
        margin-right: 2px;
    }
    .breadcrumb-list .current {
        max-width: 180px;
    }
}

/* roulang page: category2 */
:root{
  --primary:#165A87;
  --primary-dark:#0E3F64;
  --accent:#12A5A0;
  --warm:#F0A93B;
  --bg:#F6F9FC;
  --section:#EAF2F7;
  --card:#FFFFFF;
  --border:#DFE8F0;
  --text:#1A344C;
  --muted:#5D748A;
  --weak:#94A7B8;
  --radius-lg:16px;
  --radius-md:10px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(16,44,70,.06);
  --shadow-hover:0 12px 28px rgba(16,44,70,.12);
  --nav-height:72px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{text-decoration:none;color:var(--primary);transition:color .2s ease}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none;padding:0}
input,textarea{outline:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section-pad{padding:92px 0}
:focus-visible{outline:2px solid var(--warm);outline-offset:2px}
.ds-none{display:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:10px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(22,90,135,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(22,90,135,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px)}
.btn-xl{min-height:54px;padding:0 34px;font-size:16px}
.btn-block{width:100%}

.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 14px rgba(11,46,64,.05);
}
.header-inner{
  min-height:var(--nav-height);
  display:flex;
  align-items:center;
  gap:26px;
  position:relative;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 6px 12px rgba(22,90,135,.22);
  flex-shrink:0;
}
.logo-text{font-size:20px;font-weight:800;color:var(--text);letter-spacing:.2px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  font-size:15.5px;
  font-weight:600;
  color:var(--muted);
  border-radius:8px;
  transition:color .2s ease;
}
.main-nav a:hover{color:var(--primary);background:rgba(22,90,135,.05)}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.header-search{display:flex;align-items:center;width:220px;position:relative}
.header-search input{
  width:100%;
  height:42px;
  padding:0 42px 0 16px;
  border:1px solid var(--border);
  border-radius:999px;
  background:var(--section);
  font-size:14px;
  color:var(--text);
  transition:all .22s ease;
}
.header-search input:focus{
  border-color:var(--accent);
  background:#fff;
  box-shadow:0 0 0 3px rgba(18,165,160,.14);
}
.header-search button{
  position:absolute;
  right:5px;
  width:32px;
  height:32px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.header-search button:hover{background:rgba(22,90,135,.08);color:var(--primary)}
.btn-header{min-height:40px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  width:18px;height:2px;background:var(--text);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.category-hero{
  background:linear-gradient(180deg,#EAF2F7 0%,#F6F9FC 100%);
  padding:52px 0 60px;
  border-bottom:1px solid #E3ECF4;
  overflow:hidden;
  position:relative;
}
.category-hero::before{
  content:"";
  position:absolute;
  right:-100px;
  top:-80px;
  width:320px;
  height:320px;
  border-radius:50%;
  border:44px solid rgba(18,165,160,.06);
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--weak);
  margin-bottom:26px;
}
.breadcrumb a{color:var(--weak)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--muted);font-weight:600}
.category-hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  align-items:center;
  gap:56px;
  position:relative;
  z-index:2;
}
.top-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:#fff;
  border:1px solid rgba(22,90,135,.12);
  color:var(--primary);
  font-size:13.5px;
  font-weight:700;
  padding:7px 14px;
  border-radius:999px;
  box-shadow:var(--shadow-sm);
}
.category-hero h1{
  font-size:46px;
  line-height:1.2;
  font-weight:800;
  margin:18px 0 16px;
  color:var(--text);
  letter-spacing:-1px;
}
.category-hero-sub{
  font-size:17px;
  color:var(--muted);
  line-height:1.9;
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px}
.hero-safe-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  margin-top:24px;
}
.hero-safe-list span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:var(--muted);
}
.hero-safe-list i{color:var(--accent);font-size:13px}
.category-hero-media{position:relative}
.category-hero-media::after{
  content:"";
  position:absolute;
  left:-18px;
  bottom:-18px;
  width:180px;
  height:180px;
  background:rgba(18,165,160,.08);
  border-radius:28px;
  z-index:-1;
}
.category-hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:22px;
  box-shadow:0 22px 44px rgba(22,90,135,.18);
  background:var(--section);
}
.media-float{
  position:absolute;
  bottom:18px;
  left:18px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(6px);
  border-radius:14px;
  box-shadow:var(--shadow-hover);
  padding:12px 18px;
  display:flex;
  align-items:center;
  gap:12px;
}
.media-float strong{
  font-size:28px;
  color:var(--primary);
  line-height:1.2;
}
.media-float span{font-size:12.5px;color:var(--muted);line-height:1.4}

.topic-section{background:#fff}
.split-layout{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:64px;
  align-items:center;
}
.split-media{position:relative}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:20px;
  box-shadow:var(--shadow-hover);
  background:var(--section);
}
.split-media::before{
  content:"";
  position:absolute;
  right:-14px;
  top:-14px;
  width:120px;
  height:120px;
  border-radius:18px;
  border:18px solid rgba(240,169,59,.16);
  z-index:-1;
}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.5px;
}
.section-eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.topic-title{
  font-size:32px;
  line-height:1.3;
  color:var(--text);
  font-weight:800;
  margin:10px 0 14px;
}
.topic-desc{color:var(--muted);font-size:15.5px;max-width:560px}
.check-list{margin-top:22px;display:grid;gap:13px}
.check-list li{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text);
  background:var(--bg);
  border:1px solid #EAF0F6;
  border-radius:12px;
  padding:11px 14px;
}
.check-list li i{color:var(--accent);font-size:14px;margin-top:5px}
.split-copy .btn{margin-top:26px}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:14px;
  font-weight:700;
  color:var(--primary);
}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}

.security-section{background:var(--bg)}
.section-heading{max-width:720px;margin-bottom:46px}
.section-heading.center{margin-left:auto;margin-right:auto;text-align:center}
.section-heading h2{
  font-size:32px;
  line-height:1.3;
  font-weight:800;
  color:var(--text);
  margin:10px 0 12px;
}
.section-heading p{color:var(--muted);font-size:15.5px;line-height:1.8}
.security-list{
  background:#fff;
  border:1px solid var(--border);
  border-radius:20px;
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.secure-item{
  display:grid;
  grid-template-columns:62px 1fr 150px;
  align-items:center;
  gap:20px;
  padding:24px 28px;
  border-bottom:1px solid #EEF3F7;
  transition:background .2s ease,box-shadow .2s ease;
}
.secure-item:last-child{border-bottom:none}
.secure-item:hover{background:#F8FBFD}
.secure-icon{
  width:54px;height:54px;
  background:rgba(18,165,160,.1);
  color:var(--accent);
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:21px;
}
.secure-main h3{font-size:17.5px;font-weight:800;color:var(--text);margin-bottom:3px}
.secure-main p{font-size:14.5px;color:var(--muted);line-height:1.75}
.secure-tag{
  justify-self:end;
  font-size:13px;
  color:var(--primary);
  font-weight:700;
  background:rgba(22,90,135,.08);
  border-radius:999px;
  padding:5px 12px;
  white-space:nowrap;
}

.process-section{background:#fff;position:relative}
.process-steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  margin-top:40px;
  position:relative;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;
  padding:30px 24px 26px;
  box-shadow:var(--shadow-sm);
  transition:all .25s ease;
  z-index:1;
}
.step-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(22,90,135,.28);
}
.step-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:14px;
  background:var(--primary);
  color:#fff;
  font-size:19px;
  font-weight:800;
  box-shadow:0 8px 16px rgba(22,90,135,.22);
  margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:800;margin-bottom:7px;color:var(--text)}
.step-card p{font-size:14px;color:var(--muted);line-height:1.85}
.step-connector{
  position:absolute;
  top:44px;
  left:calc(100% - 8px);
  width:22px;
  height:2px;
  background:var(--accent);
  opacity:.28;
  z-index:0;
}
.step-card:last-child .step-connector{display:none}
.process-note{
  margin-top:28px;
  display:flex;
  gap:14px;
  background:var(--section);
  border-radius:16px;
  padding:18px 24px;
  align-items:center;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.7;
}
.process-note i{color:var(--accent);font-size:20px;flex-shrink:0}

.faq-section{background:var(--bg)}
.faq-layout{
  display:grid;
  grid-template-columns:.76fr 1.36fr;
  gap:54px;
  align-items:start;
}
.faq-aside{position:sticky;top:120px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 3px 10px rgba(16,44,70,.03);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{
  border-color:rgba(22,90,135,.3);
  box-shadow:var(--shadow-sm);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:20px 24px;
  font-size:16px;
  color:var(--text);
  font-weight:700;
  line-height:1.5;
  transition:color .2s ease;
}
.faq-question:hover{color:var(--primary)}
.faq-mark{
  width:32px;height:32px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(22,90,135,.08);
  color:var(--primary);
  font-size:16px;
  flex-shrink:0;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.open .faq-mark{
  background:var(--primary);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .35s ease;
}
.faq-answer-inner{min-height:0;overflow:hidden}
.faq-item.open .faq-answer{grid-template-rows:1fr}
.faq-answer p{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.9;
  border-top:1px solid #F0F4F8;
  padding-top:16px;
}

.rel-section{background:#fff}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.rel-card{
  display:block;
  padding:30px 28px;
  background:var(--bg);
  border:1px solid #EAF0F6;
  border-radius:18px;
  transition:all .25s ease;
}
.rel-card:hover{
  background:#fff;
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:transparent;
}
.rel-icon{
  width:48px;height:48px;
  border-radius:14px;
  background:#fff;
  color:var(--primary);
  font-size:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-sm);
  margin-bottom:16px;
}
.rel-card h3{font-size:18px;font-weight:800;color:var(--text);margin-bottom:6px}
.rel-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.rel-card span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-top:14px;
  font-weight:700;
  font-size:14px;
  color:var(--primary);
}
.rel-card span i{transition:transform .2s ease}
.rel-card:hover span i{transform:translateX(4px)}

.cta-section{padding:92px 0 86px;background:var(--bg)}
.cta-box{
  background:var(--section);
  border:1px solid #DCE8F1;
  border-radius:24px;
  padding:48px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-90px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:rgba(22,90,135,.07);
}
.cta-box h2{font-size:28px;font-weight:800;color:var(--text)}
.cta-box p{color:var(--muted);font-size:15px;margin-top:6px;max-width:600px}
.cta-box .btn{position:relative;z-index:2;flex-shrink:0}

.site-footer{
  background:#0B2E40;
  color:#AFC3D5;
  padding-top:66px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr 1.1fr;
  gap:48px;
  padding-bottom:50px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand .logo{margin-bottom:16px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand p{font-size:14.5px;line-height:2;max-width:300px}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:800;
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{
  color:#AFC3D5;
  font-size:14.5px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col ul a:hover{color:#7FD6D2;padding-left:4px}
.footer-contact{display:grid;gap:13px}
.footer-contact-item{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:14.5px;
  color:#AFC3D5;
}
.footer-contact-item i{
  width:34px;height:34px;
  background:rgba(255,255,255,.08);
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#87D5D1;
  font-size:14px;
}
.footer-bottom{
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  column-gap:14px;
  row-gap:7px;
  font-size:13.5px;
  color:#8AA3B4;
}
.footer-bottom a{color:#9FB7C8}
.footer-bottom a:hover{color:#7FD6D2}

.modal-mask{
  position:fixed;
  inset:0;
  z-index:500;
  background:rgba(11,46,64,.66);
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.modal-mask.is-open{display:flex}
.modal-card{
  width:540px;
  max-width:100%;
  max-height:90vh;
  overflow:auto;
  background:#fff;
  border-radius:22px;
  padding:38px 40px 30px;
  position:relative;
  box-shadow:0 30px 70px rgba(11,46,64,.28);
  animation:modalIn .3s ease;
}
@keyframes modalIn{
  from{opacity:0;transform:translateY(16px) scale(.985)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.modal-close{
  position:absolute;
  top:16px;
  right:16px;
  width:36px;
  height:36px;
  border-radius:50%;
  background:var(--section);
  color:var(--muted);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  transition:all .2s ease;
}
.modal-close:hover{background:var(--primary);color:#fff}
.modal-icon{
  width:52px;height:52px;
  border-radius:16px;
  background:rgba(18,165,160,.12);
  color:var(--accent);
  font-size:21px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
}
.modal-card h3{font-size:24px;font-weight:800;color:var(--text)}
.modal-sub{font-size:14.5px;color:var(--muted);margin-top:6px;margin-bottom:24px}
.consult-form{display:grid;gap:15px}
.form-group{display:grid;gap:6px}
.form-group label{font-size:14px;font-weight:700;color:var(--text)}
.form-group input,.form-group textarea{
  width:100%;
  height:46px;
  border:1px solid var(--border);
  border-radius:10px;
  padding:0 16px;
  background:var(--bg);
  font-size:14.5px;
  transition:all .2s ease;
}
.form-group textarea{height:110px;padding:14px 16px;resize:vertical;line-height:1.7}
.form-group input:focus,.form-group textarea:focus{
  border-color:var(--accent);
  background:#fff;
  box-shadow:0 0 0 3px rgba(18,165,160,.12);
}
.privacy-check{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:13px;
  color:var(--muted);
  line-height:1.65;
}
.privacy-check input{
  margin-top:3px;
  accent-color:var(--primary);
  flex-shrink:0;
}
.form-note{
  text-align:center;
  font-size:12.5px;
  color:var(--weak);
}

@media (max-width:1200px){
  .main-nav a{padding:9px 12px;font-size:15px}
  .header-search{width:182px}
  .category-hero h1{font-size:38px}
  .step-connector{display:none}
}
@media (max-width:1080px){
  .nav-toggle{display:flex}
  .header-search{display:none}
  .main-nav{
    position:fixed;
    top:58px;
    left:16px;
    right:16px;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:18px;
    border-radius:18px;
    border:1px solid var(--border);
    box-shadow:0 20px 48px rgba(11,46,64,.16);
    opacity:0;
    pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .25s ease,transform .25s ease;
  }
  .site-header.nav-open .main-nav{
    opacity:1;
    pointer-events:auto;
    transform:translateY(0);
  }
  .main-nav a{
    font-size:16px;
    padding:13px 14px;
    border-radius:10px;
  }
  .main-nav a.active{background:rgba(22,90,135,.07)}
  .main-nav a.active::after{display:none}
  .category-hero-inner{grid-template-columns:1fr;gap:34px}
  .category-hero{padding:38px 0 48px}
  .category-hero-media{max-width:650px}
  .split-layout{grid-template-columns:1fr;gap:36px}
  .topic-section .split-media::before{display:none}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:30px}
  .faq-aside{position:static}
  .rel-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:860px){
  .rel-grid{grid-template-columns:1fr}
  .secure-item{grid-template-columns:54px 1fr}
  .secure-tag{grid-column:2;justify-self:start;margin-top:2px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:38px 30px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section-pad{padding:56px 0}
  .header-inner{gap:12px}
  .logo-mark{width:36px;height:36px;font-size:16px;border-radius:11px}
  .logo-text{font-size:18px}
  .btn-header{display:none}
  .nav-toggle{display:flex}
  .main-nav{top:56px;left:12px;right:12px}
  .category-hero{padding:32px 0 42px}
  .breadcrumb{margin-bottom:18px}
  .category-hero h1{font-size:30px}
  .category-hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1}
  .hero-safe-list{gap:8px 12px}
  .hero-safe-list span{font-size:12.5px}
  .media-float{left:12px;bottom:12px;padding:10px 12px}
  .media-float strong{font-size:21px}
  .topic-title{font-size:26px}
  .topic-desc{font-size:15px}
  .section-heading h2{font-size:26px}
  .secure-item{padding:20px 18px;grid-template-columns:1fr;gap:10px}
  .secure-icon{width:46px;height:46px;font-size:18px}
  .secure-tag{grid-column:auto;justify-self:start}
  .process-steps{grid-template-columns:1fr}
  .step-card{padding:24px}
  .faq-question{padding:16px 18px;font-size:15px}
  .faq-answer p{padding:0 18px 18px}
  .cta-box{padding:30px 24px}
  .cta-box h2{font-size:23px}
  .cta-box .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;text-align:center}
  .modal-card{padding:30px 22px 24px;border-radius:18px}
  .modal-card h3{font-size:21px}
}

/* roulang page: category3 */
:root {
            --primary: #165A87;
            --primary-deep: #0E4164;
            --primary-soft: #EAF2F7;
            --accent: #12A5A0;
            --accent-deep: #0B807C;
            --accent-soft: #E4F6F4;
            --amber: #F0A93B;
            --amber-soft: #FFF4DE;
            --ink: #1A344C;
            --text: #3D5870;
            --muted: #678197;
            --weak: #91A7B8;
            --page: #F6F9FC;
            --surface: #FFFFFF;
            --soft: #EFF5F9;
            --border: #DCE7F0;
            --shadow-sm: 0 6px 18px rgba(16, 44, 70, .06);
            --shadow-md: 0 14px 32px rgba(16, 44, 70, .10);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --container: 1240px;
            --header-h: 78px;
        }

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

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

        body {
            margin: 0;
            background: var(--page);
            color: var(--text);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }

        body.nav-open {
            overflow: hidden;
        }

        h1,
        h2,
        h3,
        h4,
        p {
            margin-top: 0;
        }

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

        img {
            display: block;
            max-width: 100%;
            height: auto;
        }

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

        button,
        input,
        select,
        textarea {
            font: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            background: none;
            border: 0;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--amber);
            outline-offset: 3px;
        }

        .container {
            width: min(1240px, 100% - 48px);
            margin-inline: auto;
        }

        .ds-none {
            display: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 20px;
            border-radius: 10px;
            font-weight: 600;
            transition: background .25s ease, border-color .25s ease, box-shadow .25s ease, color .25s ease, transform .2s ease;
        }

        .btn i {
            font-size: 15px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            border-color: var(--primary-deep);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(22, 90, 135, .20);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            border: 1px solid #C6D8E6;
        }

        .btn-light:hover {
            border-color: var(--primary);
            color: var(--primary-deep);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-lg {
            min-height: 52px;
            padding: 0 26px;
            font-size: 16px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 120;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(22, 60, 95, .05);
        }

        .header-inner {
            min-height: var(--header-h);
            display: flex;
            align-items: center;
            gap: 24px;
        }

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

        .logo-mark {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            box-shadow: 0 7px 14px rgba(22, 90, 135, .20);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 26px;
            margin-left: 22px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            min-height: 46px;
            padding: 0 2px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            position: relative;
        }

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

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 4px;
            height: 2px;
            border-radius: 3px;
            background: var(--primary);
        }

        .header-tools {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            display: flex;
            align-items: center;
            width: 220px;
            height: 40px;
            background: #F4F7FA;
            border: 1px solid transparent;
            border-radius: 999px;
            transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
        }

        .header-search:focus-within {
            background: #fff;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(18, 165, 160, .12);
        }

        .header-search input {
            flex: 1;
            min-width: 0;
            height: 100%;
            background: transparent;
            border: 0;
            padding: 0 6px 0 16px;
            outline: none;
            font-size: 14px;
            color: var(--ink);
        }

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

        .header-search button {
            width: 42px;
            height: 100%;
            border-radius: 0 999px 999px 0;
            color: var(--primary);
            font-size: 15px;
            transition: color .2s ease, background .2s ease;
        }

        .header-search button:hover {
            color: var(--accent-deep);
        }

        .btn-header {
            min-height: 40px;
            padding: 0 18px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            background: var(--soft);
            border: 1px solid var(--border);
        }

        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--ink);
            border-radius: 5px;
            transition: width .2s ease;
        }

        .nav-toggle:hover span {
            width: 22px;
        }

        .nav-overlay {
            position: fixed;
            inset: 0;
            z-index: 130;
            background: rgba(11, 46, 64, .58);
            opacity: 0;
            pointer-events: none;
            transition: opacity .3s ease;
        }

        body.nav-open .nav-overlay {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            z-index: 150;
            width: min(380px, 92vw);
            height: 100dvh;
            background: #fff;
            transform: translateX(102%);
            transition: transform .35s ease;
            display: flex;
            flex-direction: column;
            padding: 20px;
            overflow-y: auto;
            box-shadow: -14px 0 36px rgba(11, 46, 64, .16);
        }

        body.nav-open .mobile-drawer {
            transform: none;
        }

        .drawer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .drawer-close {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--soft);
            color: var(--ink);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, color .2s ease;
        }

        .drawer-close:hover {
            background: var(--primary);
            color: #fff;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            margin-top: 18px;
        }

        .drawer-nav a {
            display: flex;
            align-items: center;
            min-height: 48px;
            padding: 8px 14px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
        }

        .drawer-nav a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .drawer-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
        }

        .drawer-search {
            margin-top: 16px;
            display: flex;
            align-items: center;
            height: 46px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: #F4F7FA;
            overflow: hidden;
        }

        .drawer-search input {
            flex: 1;
            min-width: 0;
            height: 100%;
            border: 0;
            background: transparent;
            padding: 0 16px;
            font-size: 14px;
            outline: none;
        }

        .drawer-search button {
            width: 48px;
            color: var(--primary);
        }

        .drawer-cta {
            margin-top: 18px;
        }

        .skip-link {
            position: fixed;
            top: 10px;
            left: 10px;
            z-index: 500;
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: 8px;
            transform: translateY(-200%);
        }

        .skip-link:focus {
            transform: translateY(0);
        }

        .cat-hero {
            position: relative;
            padding: 60px 0 58px;
            overflow: hidden;
            background: linear-gradient(180deg, #EAF3F8 0%, #F5F9FC 68%, #F6F9FC 100%);
        }

        .cat-hero::after {
            content: "";
            position: absolute;
            right: -3%;
            bottom: -34%;
            width: 560px;
            height: 560px;
            border-radius: 50%;
            border: 60px solid rgba(22, 90, 135, .06);
            pointer-events: none;
        }

        .cat-hero::before {
            content: "";
            position: absolute;
            left: 4%;
            top: 6%;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(18, 165, 160, .10) 0%, transparent 70%);
            pointer-events: none;
        }

        .cat-hero .container {
            position: relative;
            z-index: 2;
        }

        .cat-hero-inner {
            display: grid;
            grid-template-columns: 1.04fr .96fr;
            align-items: center;
            gap: 64px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb i {
            font-size: 12px;
            opacity: .7;
        }

        .breadcrumb .current {
            color: var(--ink);
            font-weight: 600;
        }

        .page-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 13px;
            background: #fff;
            border: 1px solid #CBDFEC;
            border-radius: 999px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            box-shadow: var(--shadow-sm);
        }

        .cat-hero h1 {
            font-size: clamp(34px, 4.2vw, 48px);
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--ink);
            font-weight: 800;
            letter-spacing: .5px;
        }

        .cat-hero-lead {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .cat-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 22px;
        }

        .hero-mini-points {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 22px;
            color: var(--muted);
            font-size: 13px;
        }

        .hero-mini-points li {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .hero-mini-points i {
            color: var(--accent);
        }

        .cat-hero-visual {
            position: relative;
        }

        .hero-figure {
            margin: 0;
            position: relative;
            filter: drop-shadow(0 24px 40px rgba(22, 90, 135, .16));
        }

        .hero-figure img {
            width: 100%;
            border-radius: 24px;
            border: 1px solid #fff;
            box-shadow: 0 20px 45px rgba(22, 70, 110, .18);
            aspect-ratio: 5 / 3;
            object-fit: cover;
        }

        .float-card {
            position: absolute;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .96);
            border: 1px solid #EAF1F6;
            border-radius: 14px;
            padding: 10px 14px;
            box-shadow: 0 12px 26px rgba(18, 55, 82, .14);
        }

        .float-card i {
            width: 32px;
            height: 32px;
            border-radius: 9px;
            background: var(--accent-soft);
            color: var(--accent-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .float-card strong {
            display: block;
            font-size: 14px;
            color: var(--ink);
            line-height: 1.4;
        }

        .float-card span {
            display: block;
            font-size: 12px;
            color: var(--muted);
            line-height: 1.4;
        }

        .float-card-top {
            top: 20px;
            left: -18px;
        }

        .float-card-bottom {
            bottom: 26px;
            right: -12px;
        }

        .channel-strip {
            margin-top: 44px;
            padding: 26px 0;
            background: #0B2E40;
            color: #E0EDF6;
        }

        .channel-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .channel-strip-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 18px;
            border-radius: 16px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            transition: background .25s ease, transform .25s ease, border-color .25s ease;
        }

        .channel-strip-item:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .18);
            transform: translateY(-3px);
        }

        .channel-strip-icon {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: rgba(18, 165, 160, .2);
            color: #52D4CD;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .channel-strip-item strong {
            display: block;
            font-size: 15px;
            color: #fff;
            line-height: 1.4;
        }

        .channel-strip-item p {
            margin: 3px 0 0;
            font-size: 12px;
            color: #B8CBD9;
            line-height: 1.6;
        }

        .cat-content {
            padding: 72px 0 56px;
        }

        .detail-layout {
            display: grid;
            grid-template-columns: 252px minmax(0, 1fr);
            gap: 56px;
            align-items: start;
        }

        .anchor-side {
            position: sticky;
            top: calc(var(--header-h) + 26px);
        }

        .anchor-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 14px;
            box-shadow: var(--shadow-sm);
        }

        .anchor-heading {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 10px 14px;
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            border-bottom: 1px solid var(--border);
        }

        .anchor-heading i {
            color: var(--primary);
        }

        .anchor-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-top: 12px;
        }

        .anchor-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            min-height: 42px;
            padding: 8px 12px;
            border-radius: 10px;
            color: var(--text);
            font-size: 14px;
            border-left: 3px solid transparent;
            transition: background .2s ease, color .2s ease, border-color .2s ease;
        }

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

        .anchor-nav a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .anchor-nav a.active {
            background: var(--primary-soft);
            color: var(--primary);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .side-help {
            display: block;
            margin-top: 18px;
            padding: 18px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
        }

        .side-help span {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .side-help small {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--primary);
        }

        .detail-main {
            min-width: 0;
        }

        .content-section {
            margin-bottom: 64px;
            padding-top: 8px;
            scroll-margin-top: calc(var(--header-h) + 20px);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            border-radius: 7px;
            padding: 4px 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-deep);
        }

        .section-tag i {
            font-size: 12px;
        }

        .content-section h2 {
            font-size: 30px;
            line-height: 1.3;
            margin: 10px 0 18px;
            color: var(--ink);
            font-weight: 800;
        }

        .lead-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
            max-width: 780px;
            margin-bottom: 28px;
        }

        .split-feature {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #C2D6E4;
        }

        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: 13px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .feature-card:nth-child(2) .feature-icon,
        .feature-card:nth-child(3) .feature-icon {
            background: var(--accent-soft);
            color: var(--accent-deep);
        }

        .feature-card h3 {
            font-size: 17px;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.5;
        }

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

        .table-scroll {
            overflow-x: auto;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .normal-table {
            width: 100%;
            min-width: 680px;
            border-collapse: collapse;
            background: #fff;
        }

        .normal-table th {
            background: var(--primary-soft);
            color: var(--ink);
            text-align: left;
            padding: 14px 18px;
            font-size: 14px;
            font-weight: 700;
            border-bottom: 1px solid var(--border);
        }

        .normal-table td {
            padding: 16px 18px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text);
            border-top: 1px solid #EDF2F6;
            vertical-align: top;
        }

        .normal-table tr:hover td {
            background: #FBFDFE;
        }

        .normal-table .soft-label {
            color: var(--weak);
            font-size: 12px;
        }

        .step-list {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 24px 24px 64px;
            box-shadow: var(--shadow-sm);
            min-height: 150px;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            left: 20px;
            top: 24px;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
        }

        .step-item h3 {
            font-size: 17px;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .step-item p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.85;
        }

        .check-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px;
        }

        .check-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 20px 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
        }

        .check-item i {
            width: 24px;
            height: 24px;
            margin-top: 3px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--accent-deep);
            font-size: 12px;
            flex-shrink: 0;
        }

        .check-item strong {
            display: block;
            font-size: 15px;
            color: var(--ink);
            margin-bottom: 4px;
        }

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

        .note-box {
            margin-top: 24px;
            background: var(--amber-soft);
            border: 1px solid #F1D6A8;
            border-radius: var(--radius);
            padding: 18px 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .note-box i {
            color: var(--amber);
            font-size: 20px;
            margin-top: 3px;
        }

        .note-box p {
            margin: 0;
            font-size: 14px;
            line-height: 1.8;
            color: #6D542E;
        }

        .faq-wrap {
            margin-top: 26px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 15px;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .2s ease, border-color .2s ease;
        }

        .faq-item.open {
            border-color: #BBD5E5;
            box-shadow: var(--shadow-md);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 60px;
            padding: 15px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.6;
        }

        .faq-q:hover {
            background: #FDFEFF;
        }

        .faq-icon {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 500;
            transition: transform .25s ease, background .25s ease, color .25s ease;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-a {
            display: none;
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.9;
            border-top: 0;
        }

        .faq-item.open .faq-a {
            display: block;
            animation: fadeIn .3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .cta-panel {
            padding: 16px 0 84px;
        }

        .cta-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 24px;
            box-shadow: var(--shadow-md);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-card::after {
            content: "\f0c1";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -40px;
            bottom: -50px;
            font-size: 150px;
            color: rgba(22, 90, 135, .05);
            transform: rotate(-12deg);
        }

        .cta-copy {
            position: relative;
            z-index: 2;
        }

        .cta-copy h2 {
            font-size: 26px;
            color: var(--ink);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .cta-copy p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
        }

        .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid #BBD0DE;
            color: var(--primary);
        }

        .btn-outline-light:hover {
            border-color: var(--primary);
            background: var(--primary-soft);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .cross-nav-section {
            padding: 0 0 90px;
        }

        .section-heading-center {
            text-align: center;
            margin-bottom: 34px;
        }

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

        .section-heading-center h2 {
            font-size: 30px;
            color: var(--ink);
            font-weight: 800;
            margin: 10px 0 0;
        }

        .cross-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 18px;
        }

        .cross-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .cross-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .cross-card.current {
            border-color: var(--primary);
            background: var(--primary);
        }

        .cross-card-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .cross-card.current .cross-card-icon {
            background: rgba(255, 255, 255, .18);
            color: #fff;
        }

        .cross-card strong {
            display: block;
            font-size: 16px;
            color: var(--ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }

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

        .cross-card.current strong {
            color: #fff;
        }

        .cross-card.current p {
            color: #D9E9F4;
        }

        .site-footer {
            background: #0B2E40;
            color: #C8D9E4;
            font-size: 14px;
        }

        .site-footer .container {
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr .8fr .9fr 1.1fr;
            gap: 44px;
            padding-bottom: 40px;
        }

        .site-footer .logo-text {
            color: #fff;
        }

        .site-footer .logo-mark {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            box-shadow: none;
        }

        .footer-brand p {
            margin: 18px 0 0;
            font-size: 14px;
            line-height: 1.9;
            max-width: 320px;
            color: #AFC7D6;
        }

        .footer-title {
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: #B8CEDB;
            transition: color .2s ease, transform .2s ease;
        }

        .footer-col ul a:hover {
            color: #6FE0D9;
            transform: translateX(3px);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #B8CEDB;
        }

        .footer-contact-item i {
            color: #4CCEC7;
            width: 20px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 22px;
            align-items: center;
            font-size: 13px;
            color: #8EABBE;
        }

        .footer-bottom a {
            color: #AFC7D6;
        }

        .footer-bottom a:hover {
            color: #6FE0D9;
        }

        .modal {
            position: fixed;
            inset: 0;
            z-index: 300;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
        }

        .modal.is-open {
            opacity: 1;
            visibility: visible;
        }

        .modal-mask {
            position: absolute;
            inset: 0;
            background: rgba(11, 46, 64, .6);
        }

        .modal-card {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: 560px;
            max-height: 92vh;
            overflow-y: auto;
            background: #fff;
            border-radius: 22px;
            padding: 34px;
            box-shadow: 0 30px 70px rgba(9, 34, 52, .25);
            transform: translateY(14px);
            transition: transform .3s ease;
        }

        .modal.is-open .modal-card {
            transform: translateY(0);
        }

        .modal-close {
            position: absolute;
            right: 18px;
            top: 18px;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--soft);
            color: var(--ink);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, color .2s ease;
        }

        .modal-close:hover {
            background: var(--primary);
            color: #fff;
        }

        .modal-card h2 {
            font-size: 22px;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .modal-card .modal-desc {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 22px;
            line-height: 1.8;
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 14px;
        }

        .form-col {
            display: flex;
            flex-direction: column;
        }

        .form-col.full {
            grid-column: 1 / -1;
        }

        .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .form-control,
        .form-select {
            width: 100%;
            height: 46px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: #FBFCFE;
            padding: 0 14px;
            font-size: 14px;
            color: var(--ink);
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
        }

        textarea.form-control {
            height: auto;
            min-height: 96px;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.7;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(18, 165, 160, .12);
        }

        .form-control::placeholder {
            color: var(--weak);
        }

        .check-line {
            display: flex;
            align-items: flex-start;
            gap: 9px;
            margin: 16px 0;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }

        .check-line input {
            width: 16px;
            height: 16px;
            margin-top: 3px;
            accent-color: var(--primary);
            flex-shrink: 0;
        }

        .check-line a {
            color: var(--primary);
            font-weight: 600;
        }

        .submit-row {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .submit-row .btn {
            flex: 1;
        }

        .submit-note {
            font-size: 12px;
            color: var(--weak);
        }

        .anchor-link-ie {
            scroll-margin-top: calc(var(--header-h) + 20px);
        }

        @media (max-width: 1200px) {
            .channel-strip-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 1080px) {
            .main-nav {
                display: none;
            }

            .header-search {
                display: none;
            }

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

            .detail-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .anchor-side {
                position: static;
            }

            .anchor-card {
                display: none;
            }

            .side-help {
                display: none;
            }

            .cat-hero-inner {
                grid-template-columns: 1fr;
                gap: 44px;
            }

            .cat-hero h1 {
                font-size: 36px;
            }

            .float-card-top {
                left: 10px;
            }

            .float-card-bottom {
                right: 10px;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px;
            }

            .cta-actions {
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            .container {
                width: min(100% - 32px, 1240px);
            }

            .header-inner {
                gap: 10px;
                min-height: 64px;
            }

            .logo-text {
                font-size: 17px;
            }

            .logo-mark {
                width: 36px;
                height: 36px;
                border-radius: 10px;
                font-size: 16px;
            }

            .btn-header {
                padding: 0 12px;
                min-height: 38px;
            }

            .btn-header .btn-label {
                display: none;
            }

            .nav-toggle {
                width: 40px;
                height: 40px;
            }

            .cat-hero {
                padding: 44px 0 50px;
            }

            .cat-hero-inner {
                gap: 34px;
            }

            .cat-hero h1 {
                font-size: 30px;
            }

            .cat-hero-lead {
                font-size: 16px;
            }

            .hero-figure {
                max-width: calc(100% - 12px);
            }

            .float-card {
                padding: 8px 10px;
            }

            .float-card i {
                width: 26px;
                height: 26px;
                border-radius: 8px;
                font-size: 13px;
            }

            .float-card strong {
                font-size: 13px;
            }

            .float-card span {
                font-size: 11px;
            }

            .channel-strip {
                margin-top: 24px;
                padding: 22px 0;
            }

            .channel-strip-grid {
                grid-template-columns: 1fr;
            }

            .cat-content {
                padding: 52px 0 42px;
            }

            .content-section h2 {
                font-size: 25px;
            }

            .split-feature,
            .check-grid,
            .step-list {
                grid-template-columns: 1fr;
            }

            .cta-card {
                padding: 28px 24px;
            }

            .cta-copy h2 {
                font-size: 21px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding-top: 12px;
            }

            .site-footer .container {
                padding-top: 44px;
            }

            .modal-card {
                padding: 26px 22px;
                border-radius: 18px;
            }

            .site-header .btn-header i {
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                width: calc(100% - 24px);
            }

            .site-header .btn-header {
                width: 40px;
                height: 40px;
                padding: 0;
                justify-content: center;
                border-radius: 11px;
            }

            .site-header .btn-header .fa-right-to-bracket {
                margin: 0;
            }

            .logo-text {
                font-size: 16px;
            }

            .cat-hero {
                padding: 36px 0 42px;
            }

            .cat-hero h1 {
                font-size: 27px;
            }

            .cat-hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cat-hero-actions .btn {
                width: 100%;
            }

            .hero-mini-points {
                gap: 8px 12px;
                font-size: 12px;
            }

            .page-badge {
                margin-bottom: 12px;
            }

            .content-section {
                margin-bottom: 48px;
            }

            .content-section h2 {
                font-size: 23px;
            }

            .lead-text {
                font-size: 15px;
            }

            .feature-card {
                padding: 20px;
            }

            .step-item {
                padding: 20px 20px 20px 56px;
                min-height: 0;
            }

            .step-item::before {
                left: 16px;
                width: 30px;
                height: 30px;
            }

            .normal-table td,
            .normal-table th {
                padding: 13px 14px;
            }

            .cta-panel {
                padding: 8px 0 64px;
            }

            .cta-card {
                border-radius: 18px;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .cross-nav-section {
                padding-bottom: 60px;
            }

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

            .footer-bottom {
                gap: 6px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root{
    --primary:#165A87;
    --primary-dark:#0F4670;
    --primary-light:#E8F1F8;
    --accent:#12A5A0;
    --accent-light:#DFF4F2;
    --warning:#F0A93B;
    --warning-bg:#FFF4DE;
    --body-bg:#F5F8FB;
    --card:#ffffff;
    --soft:#EEF5FA;
    --border:#DFE9F1;
    --text-main:#1A344C;
    --text-muted:#5D748A;
    --text-weak:#94A7B8;
    --footer:#0B2E40;
    --radius:16px;
    --radius-sm:10px;
    --shadow-sm:0 6px 18px rgba(16,44,70,.06);
    --shadow-md:0 12px 28px rgba(16,44,70,.12);
    --container:1240px;
    --header-h:72px;
    --font-stack:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-stack);font-size:16px;line-height:1.8;background:var(--body-bg);color:var(--text-main);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;border:none;outline:none}
button{cursor:pointer}
h1,h2,h3,h4{line-height:1.35;font-weight:800;color:#0E334D}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.ds-none{display:none}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.section-head{max-width:820px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:700;letter-spacing:.3px}
.section-title{font-size:30px;line-height:1.35;margin:14px 0 12px}
.section-sub{color:var(--text-muted);font-size:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border:1px solid transparent;background:transparent;border-radius:var(--radius-sm);font-size:15px;font-weight:700;transition:all .22s ease;cursor:pointer;text-align:center}
.btn i{font-size:15px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(22,90,135,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,90,135,.28)}
.btn-outline{background:#fff;border-color:#C7D9E6;color:var(--primary)}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-light);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--footer)}
.btn-light:hover{background:#DFEEF6;transform:translateY(-2px)}
.btn-lg{height:54px;padding:0 32px;font-size:16px;border-radius:12px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(18,165,160,.45);outline-offset:2px}

/* ========= Header ========= */
.site-header{position:sticky;top:0;z-index:998;height:var(--header-h);background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);box-shadow:0 4px 14px rgba(18,44,70,.04)}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-size:17px;box-shadow:0 6px 14px rgba(22,90,135,.25)}
.logo-text{font-size:20px;font-weight:800;color:var(--footer);line-height:1.2;white-space:nowrap}
.main-nav{display:flex;align-items:center;justify-content:center;gap:2px;flex:1;min-width:0}
.main-nav>a{padding:10px 13px;border-radius:9px;font-size:15px;font-weight:600;color:var(--text-muted);position:relative;transition:all .2s ease;text-align:center;white-space:nowrap}
.main-nav>a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav>a.active{color:var(--primary);font-weight:800}
.main-nav>a.active::after{content:'';position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:99px;background:var(--primary)}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto}
.header-search{display:flex;align-items:center;gap:6px;height:40px;padding-left:14px;border:1px solid var(--border);border-radius:999px;background:#F5F8FB;transition:border .2s}
.header-search:focus-within{border-color:var(--accent);background:#fff}
.header-search input{width:128px;background:transparent;font-size:14px;color:var(--text-main)}
.header-search input::placeholder{color:var(--text-weak)}
.header-search button{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;transition:background .2s}
.header-search button:hover{background:var(--primary-dark)}
.btn-header{height:40px;min-height:40px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:19px;height:2px;background:var(--primary);border-radius:2px;transition:all .25s}
.mobile-nav-head{display:none}
.mobile-search{display:none}
body.menu-open{overflow:hidden}
body.menu-open::after{content:'';position:fixed;inset:0;background:rgba(11,46,64,.56);z-index:999}

/* ========= Page Hero ========= */
.service-page-hero{position:relative;background:linear-gradient(140deg,#E2EFFA 0%,#F7FAFD 60%,#E9F5F4 100%);border-bottom:1px solid var(--border);padding:66px 0 82px;overflow:hidden}
.service-page-hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') no-repeat right top/auto 100%;opacity:.5;pointer-events:none}
.service-page-hero::after{content:'';position:absolute;left:-80px;bottom:-120px;width:250px;height:250px;border-radius:50%;background:radial-gradient(circle,#12A5A0 0%,transparent 68%);opacity:.12}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center}
.page-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-weak);margin-bottom:20px;font-weight:500}
.page-breadcrumb a{color:var(--text-muted)}
.page-breadcrumb a:hover{color:var(--primary)}
.page-breadcrumb .sep{color:#BFCEDA}
.page-breadcrumb .current{color:var(--primary);font-weight:700}
.service-page-hero h1{font-size:44px;line-height:1.28;color:var(--footer);margin:18px 0 18px;letter-spacing:.5px}
.service-page-hero h1 .brand-strong{color:var(--primary);position:relative;background:linear-gradient(180deg,transparent 76%,rgba(18,165,160,.18) 76%)}
.hero-lead{font-size:17px;color:var(--text-muted);max-width:590px;line-height:1.95;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;color:var(--text-muted);font-size:13px}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-trust i{color:var(--accent)}
.hero-visual{position:relative;z-index:2;animation:fadeUp .8s ease}
.hero-visual .hero-frame{position:relative;border-radius:22px;padding:8px;background:rgba(255,255,255,.92);box-shadow:0 24px 48px rgba(16,44,70,.16)}
.hero-visual img{width:100%;height:auto;border-radius:18px;object-fit:cover}
.floating-card{position:absolute;background:#fff;border-radius:14px;box-shadow:0 16px 36px rgba(16,44,70,.18);padding:13px 18px;display:flex;align-items:center;gap:12px;border:1px solid rgba(223,233,241,.8)}
.floating-card .fc-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:15px}
.fc-1{left:-22px;top:18%;color:var(--primary)}
.fc-1 .fc-icon{background:var(--primary-light);color:var(--primary)}
.fc-2{right:-16px;bottom:16%;color:var(--warning);animation:float 4s ease-in-out infinite}
.fc-2 .fc-icon{background:var(--warning-bg);color:var(--warning)}
.floating-card strong{display:block;font-size:16px;color:var(--footer);line-height:1.3}
.floating-card small{font-size:12px;color:var(--text-muted)}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ======== Metrics ======== */
.metric-strip{background:#fff;border-bottom:1px solid var(--border)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric-item{padding:38px 30px;text-align:left;position:relative}
.metric-item + .metric-item{border-left:1px solid var(--border)}
.metric-num{font-size:42px;font-weight:800;color:var(--primary);line-height:1.15}
.metric-num em{font-style:normal;font-size:19px;font-weight:700;margin-left:4px;color:var(--accent)}
.metric-label{margin-top:6px;font-size:14px;color:var(--text-muted)}
.metric-item .fa-solid{position:absolute;right:28px;top:36px;font-size:26px;color:#CBE0ED}

/* ======== Help Scenarios ======== */
.coverage-wrap{background:var(--body-bg)}
.coverage-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:start}
.coverage-intro{position:sticky;top:110px}
.coverage-intro .cover-mini{margin-top:24px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}
.help-scenario-list{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-sm);overflow:hidden}
.help-row{display:grid;grid-template-columns:48px 1fr auto;gap:18px;align-items:center;padding:26px 28px;border-bottom:1px solid #EEF3F8;transition:background .2s}
.help-row:last-child{border-bottom:0}
.help-row:hover{background:#F8FBFF}
.help-row .row-icon{width:46px;height:46px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;transition:transform .2s}
.help-row:hover .row-icon{transform:translateY(-2px);background:var(--accent-light);color:var(--accent)}
.help-row h3{font-size:17px;color:var(--text-main);margin-bottom:5px}
.help-row p{font-size:14px;color:var(--text-muted);line-height:1.7}
.help-row .tag-group{display:flex;gap:8px;flex-shrink:0}
.help-tag{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;font-size:12px;font-weight:700}
.help-tag.hot{background:var(--warning-bg);color:#B97A12}
.help-tag.self{background:var(--accent-light);color:var(--accent)}
.help-tag.blue{background:var(--primary-light);color:var(--primary)}

/* ======== Help Table ======== */
.table-section{background:#fff;border-block:1px solid var(--border)}
.table-wrap{border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);background:#fff;overflow-x:auto}
.help-table{width:100%;border-collapse:collapse;min-width:760px}
.help-table th{background:var(--footer);color:#fff;font-size:14px;font-weight:700;letter-spacing:.4px;text-align:left;padding:16px 20px;white-space:nowrap}
.help-table td{padding:18px 20px;border-top:1px solid #EDF3F8;font-size:14px;color:var(--text-muted);vertical-align:top;line-height:1.8}
.help-table td:first-child{color:var(--text-main);font-weight:700}
.help-table tr:hover td{background:#F8FBFF}
.td-action{color:var(--primary);font-weight:600}
.td-badge{white-space:nowrap}

/* ======== Flow dark ======== */
.flow-section{background:linear-gradient(135deg,#0B2E40,#123E55),url('/assets/images/backpic/back-2.png');background-position:center;background-size:cover;background-blend-mode:overlay;padding:90px 0;color:rgba(255,255,255,.85)}
.flow-section .section-title{color:#fff}
.flow-section .section-sub{color:rgba(255,255,255,.72)}
.flow-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.flow-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 18px 40px rgba(0,0,0,.22)}
.flow-visual img{width:100%;object-fit:cover}
.flow-visual .flow-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(11,46,64,.18)}
.flow-timeline{position:relative;padding-left:12px}
.flow-timeline::before{content:'';position:absolute;left:18px;top:20px;bottom:20px;width:2px;background:linear-gradient(#12A5A0,#F0A93B);opacity:.55;border-radius:2px}
.sflow-item{position:relative;padding:0 0 30px 44px}
.sflow-item:last-child{padding-bottom:0}
.sflow-item .node{position:absolute;left:7px;top:4px;width:24px;height:24px;border-radius:8px;background:#12A5A0;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;box-shadow:0 0 0 6px rgba(18,165,160,.18)}
.sflow-item:nth-child(2) .node{background:#258DBC}
.sflow-item:nth-child(3) .node{background:#4E85C0}
.sflow-item:nth-child(4) .node{background:#F0A93B}
.sflow-item h3{color:#fff;font-size:18px;margin-bottom:7px}
.sflow-item p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7)}
.sflow-item .time-ref{display:inline-flex;margin-top:8px;padding:3px 10px;border:1px solid rgba(255,255,255,.24);border-radius:99px;font-size:12px;color:rgba(255,255,255,.85);font-weight:600}

/* ======== FAQ ======== */
.faq-section{background:var(--body-bg)}
.faq-list{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;margin-bottom:14px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border .2s}
.faq-item.active{border-color:#A9C6DA}
.faq-question{display:flex;justify-content:space-between;align-items:center;gap:20px;width:100%;background:transparent;text-align:left;padding:20px 26px;font-size:16px;font-weight:700;color:var(--text-main);cursor:pointer}
.faq-question .faq-icons{flex-shrink:0;width:30px;height:30px;border-radius:9px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);transition:all .25s}
.faq-item.active .faq-icons{background:var(--accent);color:#fff;transform:rotate(135deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 72px 22px 26px;font-size:15px;color:var(--text-muted);line-height:1.95}
.faq-answer-inner a{color:var(--primary);font-weight:600}

/* ======== CTA & Contact ======== */
.cta-band{position:relative;background:linear-gradient(135deg,#EAF5FA,#EEF7F6);border-bottom:1px solid var(--border)}
.cta-content{position:relative;display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center;padding:74px 0}
.cta-visual{position:relative}
.cta-visual img{border-radius:20px;box-shadow:0 20px 44px rgba(16,44,70,.17)}
.cta-visual .cta-tag{position:absolute;left:18px;top:18px;background:var(--warning);color:#fff;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:800}
.cta-copy .section-title{margin-top:8px;margin-bottom:14px}
.cta-copy p{color:var(--text-muted);font-size:16px;max-width:520px;margin-bottom:28px}
.cta-contact-list{margin-top:20px;display:flex;flex-wrap:wrap;gap:18px;color:var(--text-muted);font-size:14px}
.cta-contact-list li{display:flex;align-items:center;gap:8px}
.cta-contact-list i{color:var(--accent)}

/* ======== Form Modal ======== */
.modal-mask{position:fixed;inset:0;background:rgba(11,35,53,.58);backdrop-filter:blur(3px);z-index:2001;display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.is-open{display:flex}
.modal-card{width:100%;max-width:560px;max-height:92vh;overflow:auto;background:#fff;border-radius:22px;padding:32px 32px 30px;box-shadow:0 30px 70px rgba(11,42,62,.35);animation:modalUp .35s ease}
@keyframes modalUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:18px}
.modal-head h2{font-size:22px;margin:8px 0 6px}
.modal-head p{font-size:13px;color:var(--text-muted);line-height:1.8}
.modal-close{width:38px;height:38px;flex-shrink:0;border-radius:11px;background:var(--soft);color:var(--text-muted);display:flex;align-items:center;justify-content:center;font-size:17px;border:1px solid var(--border);transition:all .2s}
.modal-close:hover{background:var(--primary-light);color:var(--primary)}
.consult-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--text-main);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;height:46px;border:1px solid var(--border);border-radius:10px;background:#FAFCFE;padding:0 14px;font-size:14px;color:var(--text-main);transition:border .2s,box-shadow .2s,background .2s}
.form-group textarea{height:100px;padding:12px 14px;resize:vertical}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(18,165,160,.13)}
.form-group select{appearance:auto}
.privacy-check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-muted);line-height:1.6}
.privacy-check input{margin-top:4px;width:16px;height:16px;accent-color:var(--primary);flex-shrink:0}
.privacy-check a{color:var(--primary);font-weight:700}
.form-submit{height:50px;font-size:16px}
.form-submit i{margin-right:4px}

/* ======== Privacy Note ======== */
.privacy-note-zone{background:#fff;border-bottom:1px solid var(--border)}
.privacy-note{display:grid;grid-template-columns:220px 1fr;gap:40px;padding:36px 0}
.privacy-note h3{font-size:18px;color:var(--footer);display:flex;align-items:center;gap:10px}
.privacy-note h3 i{color:var(--accent)}
.privacy-note p{font-size:13px;line-height:2;color:var(--text-muted);max-width:900px}

/* ======== Cross category nav ======== */
.category-links{background:var(--soft);border-top:1px solid var(--border)}
.cross-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px 20px;padding:24px 0;font-size:14px;color:var(--text-muted)}
.cross-links .cross-title{color:var(--text-main);font-weight:800}
.cross-links a{color:var(--primary);font-weight:600}
.cross-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

/* ======== Footer ======== */
.site-footer{background:var(--footer);color:rgba(255,255,255,.82);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo{color:#fff}
.footer-brand p{margin-top:24px;font-size:14px;line-height:2;color:rgba(255,255,255,.64)}
.footer-title{font-size:16px;color:#fff;margin:6px 0 20px;font-weight:700;position:relative;padding-bottom:10px}
.footer-title::after{content:'';position:absolute;left:0;bottom:0;width:28px;height:3px;border-radius:2px;background:var(--accent)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);transition:all .2s}
.footer-col ul a i{font-size:6px}
.footer-col ul a:hover{color:#7BE0D8;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact-item{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:rgba(255,255,255,.68)}
.footer-contact-item i{color:var(--accent);margin-top:5px}
.footer-bottom{display:flex;align-items:center;flex-wrap:wrap;padding:18px 0;font-size:13px;color:rgba(255,255,255,.46);gap:6px}
.footer-bottom a{color:rgba(255,255,255,.58);transition:color .2s}
.footer-bottom a:hover{color:#fff}
.footer-bottom .sep{color:rgba(255,255,255,.2);font-weight:700}

/* ======== Responsive ======== */
@media (max-width:1140px){
    .header-search{display:none}
    .main-nav>a{padding:10px 9px}
}
@media (max-width:1024px){
    :root{--header-h:64px}
    .header-inner{height:var(--header-h);gap:14px}
    .nav-toggle{display:flex}
    .main-nav{position:fixed;right:0;top:0;bottom:0;width:min(320px,88vw);z-index:2002;background:#fff;margin:0;flex-direction:column;align-items:stretch;justify-content:flex-start;display:flex;padding:22px 22px 30px;gap:6px;transform:translateX(100%);transition:transform .32s ease;box-shadow:-16px 0 36px rgba(11,46,64,.18);border-radius:0 0 0 18px;overflow-y:auto}
    body.menu-open .main-nav{transform:translateX(0)}
    .main-nav>a{padding:13px 14px;font-size:16px;white-space:normal;text-align:left}
    .main-nav>a.active::after{display:none}
    .main-nav>a.active{background:var(--primary-light)}
    .mobile-nav-head{display:flex;justify-content:space-between;align-items:center;padding:4px 4px 18px;border-bottom:1px solid #EDF3F8;margin-bottom:14px}
    .mobile-nav-title{font-weight:800;color:var(--footer);font-size:17px}
    .mobile-nav-close{width:32px;height:32px;border-radius:9px;background:var(--soft);color:var(--primary);display:flex;align-items:center;justify-content:center}
    .mobile-search{display:flex;gap:8px;margin-top:20px;padding:8px 0 0}
    .mobile-search input{height:42px;padding:0 16px;border:1px solid var(--border);border-radius:999px;background:var(--soft);flex:1;font-size:14px}
    .mobile-search button{width:42px;height:42px;border-radius:12px;background:var(--primary);color:#fff}
    .btn-header{display:none}
    .service-page-hero{padding:56px 0 66px}
    .hero-inner{grid-template-columns:1fr;gap:48px}
    .section{padding:66px 0}
    .metrics-grid{grid-template-columns:repeat(4,1fr)}
    .coverage-layout{grid-template-columns:1fr;gap:28px}
    .coverage-intro{position:static}
    .flow-grid{grid-template-columns:1fr;gap:34px}
    .flow-visual{margin-bottom:10px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-content{grid-template-columns:1fr;gap:36px}
}
@media (max-width:768px){
    .container{padding:0 18px}
    .section{padding:56px 0}
    .metrics-grid{grid-template-columns:repeat(2,1fr);gap:0}
    .metric-item{padding:30px 20px}
    .metric-item:nth-child(2){border-right:0}
    .metric-item:nth-child(n+1){border-top:1px solid #EDF1F5}
    .metric-item:nth-child(1),.metric-item:nth-child(2){border-top:0}
    .metric-item:nth-child(1){border-left:0}
    .metric-item:nth-child(org){border-right:1px solid var(--border)}
    .metric-item:nth-child(odd){border-right:1px solid var(--border)}
    .section-title{font-size:25px}
    .service-page-hero h1{font-size:31px}
    .hero-actions{width:100%}
    .hero-actions .btn{flex:1}
    .help-row{grid-template-columns:44px 1fr;align-items:start}
    .help-row .tag-group{grid-column:2;padding-top:4px}
    .form-row{grid-template-columns:1fr}
    .privacy-note{grid-template-columns:1fr;gap:20px;padding:26px 0}
    .page-breadcrumb{font-size:12px}
    .footer-bottom{justify-content:center;text-align:center}
    .footer-bottom .sep{display:none}
}
@media (max-width:520px){
    .metrics-grid{grid-template-columns:1fr 1fr;gap:0}
    .metric-item{border:0 !important;border-bottom:1px solid #EDF1F5 !important}
    .metric-item:nth-last-child(-n+1){border-bottom:0 !important}
    .service-page-hero h1{font-size:27px}
    .section-title{font-size:22px}
    .btn{width:100%}
    .hero-actions .btn{width:100%}
    .help-row{padding:20px 16px}
    .table-wrap{margin:0 -6px;border-radius:14px}
    .help-table td{padding:16px 14px}
    .footer-grid{grid-template-columns:1fr}
    .footer-brand p{margin-top:14px}
    .cross-links{justify-content:flex-start;gap:8px 16px}
    .modal-card{padding:24px 18px}
    .floating-card{display:none}
    .hero-trust{gap:10px;flex-direction:column;align-items:flex-start}
}