/* roulang page: index */
:root {
    --brand: #1A6D9C;
    --brand-deep: #0B4F6C;
    --brand-dark: #0F425F;
    --cyan: #00B6BE;
    --accent: #F27F3D;
    --page-bg: #FAFBFD;
    --card-bg: #ffffff;
    --ink: #2C3E50;
    --muted: #425466;
    --soft: #8C9BA0;
    --line: #E3ECF2;
    --line-strong: #CFDDE6;
    --radius: 16px;
    --radius-md: 12px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 16px 36px rgba(16, 60, 90, 0.12);
    --header-height: 64px;
}
html { scroll-behavior: smooth; }
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--page-bg);
    color: var(--ink);
    line-height: 1.7;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, p, ul, li, figure { margin: 0; padding: 0; }
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s, background .2s, border-color .2s; }
button, input, textarea { font-family: inherit; }

.container-page { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-spacing { padding: 84px 0; }
.section-kicker {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 13px; font-weight: 600; letter-spacing: .14em;
    color: var(--brand); text-transform: uppercase;
}
.section-kicker::before {
    content: ""; width: 28px; height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent); border-radius: 2px;
}
.section-title {
    font-size: clamp(1.65rem, 2.5vw, 2.15rem);
    line-height: 1.3; font-weight: 800; color: #17384d; letter-spacing: -0.01em;
}
.section-subtitle { color: var(--muted); font-size: 15px; line-height: 1.85; }

/* header */
.site-header {
    position: sticky; top: 0; z-index: 80;
    background: rgba(255,255,255,.96);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(227,236,242,.8);
    box-shadow: 0 2px 12px rgba(16,60,90,.04);
}
.header-brand-row { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 20px; }
.brand-logo { display: inline-flex; align-items: center; gap: 9px; font-size: 21px; font-weight: 800; color: var(--brand-dark); letter-spacing: -.01em; }
.brand-logo-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: 11px;
    background: linear-gradient(145deg, var(--brand), var(--brand-deep));
    color: #fff; font-weight: 800; letter-spacing: .02em;
    box-shadow: 0 6px 14px rgba(26,109,156,.2);
    font-size: 13px;
}
.brand-logo-text { line-height: 1.2; }
.brand-logo-text small { display: block; font-size: 11px; font-weight: 500; color: var(--soft); letter-spacing: .1em; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.header-action-btn {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 13px; color: var(--muted); background: var(--page-bg);
    border: 1px solid var(--line); border-radius: 999px; padding: 8px 15px;
    cursor: pointer; transition: all .2s;
}
.header-action-btn:hover { color: var(--brand); border-color: #BBD4E4; background: white; box-shadow: 0 4px 12px rgba(0,0,0,.04); }
.header-action-btn i { color: var(--cyan); font-size: 13px; }

.nav-channel {
    border-top: 1px solid rgba(227,236,242,.7);
    background: rgba(255,255,255,.6);
}
.nav-channel-inner { display: flex; align-items: center; gap: 8px; min-height: 52px; overflow-x: auto; }
.nav-channel-inner::-webkit-scrollbar { display: none; }
.nav-channel-inner { scrollbar-width: none; }
.channel-link {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 17px;
    border-radius: 999px;
    font-size: 14px; font-weight: 500; color: var(--muted);
    white-space: nowrap;
    transition: all .2s;
}
.channel-link:hover { color: var(--brand); background: #EFF7FB; }
.channel-link.active { background: rgba(26,109,156,.1); color: var(--brand); font-weight: 700; }
.channel-link.active i { color: var(--cyan); }
.channel-link-home { color: #0F425F; font-weight: 600; }

/* buttons */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    background: var(--brand); color: #fff; font-weight: 600;
    font-size: 15px; min-height: 46px; padding: 0 26px;
    border-radius: 999px; border: 1px solid transparent;
    transition: all .2s cubic-bezier(.2,.7,.2,1);
    box-shadow: 0 6px 18px rgba(26,109,156,.18);
}
.btn-primary:hover { background: var(--brand-deep); transform: translateY(-1px); box-shadow: 0 12px 24px rgba(26,109,156,.24); }
.btn-primary:active { transform: translateY(1px) scale(.99); }
.btn-primary i { transition: transform .2s; }
.btn-primary:hover i { transform: translateX(3px); }
.btn-outline {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    background: transparent; color: #fff; font-weight: 600;
    font-size: 15px; min-height: 46px; padding: 0 26px;
    border-radius: 999px; border: 1.5px solid rgba(255,255,255,.7);
    transition: all .2s;
}
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-primary-sm {
    display: inline-flex; align-items: center; gap: 7px;
    background: var(--brand); color: #fff; font-size: 13px; font-weight: 600;
    border-radius: 999px; padding: 9px 18px; border: 0;
}
.btn-primary-sm:hover { background: var(--brand-deep); }
.btn-line {
    display: inline-flex; align-items: center; gap: 7px;
    background: transparent; color: var(--brand); font-size: 13.5px; font-weight: 600;
    border: 1.2px solid #B8D3E2; border-radius: 999px; padding: 9px 18px;
}
.btn-line:hover { border-color: var(--brand); background: #F0F7FA; }

.hero-shade {
    background: linear-gradient(115deg, rgba(12,44,66,.78) 0%, rgba(15,64,89,.55) 42%, rgba(11,66,85,.12) 100%),
                linear-gradient(to top, rgba(8,26,39,.55) 0%, transparent 38%);
}

/* hero */
.hero-module { position: relative; height: clamp(620px, 88vh, 700px); min-height: 580px; overflow: hidden; display: flex; align-items: center; }
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center 36%;
    z-index: 0;
}
.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 12px;
    letter-spacing: .22em; text-transform: uppercase;
    font-size: 12px; font-weight: 600; color: #B7E6EA;
}
.hero-eyebrow span { width: 32px; height: 1px; background: rgba(183,230,234,.7); display: inline-block; }
.hero-title { font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1.24; font-weight: 800; letter-spacing: -.02em; color: #fff; text-shadow: 0 3px 18px rgba(0,0,0,.25); }
.hero-title .text-glow { color: #7FE5EE; }
.hero-sub {
    color: rgba(255,255,255,.88); font-size: 16px; line-height: 1.9;
    max-width: 650px; font-weight: 400; text-shadow: 0 1px 7px rgba(0,0,0,.2);
}
.hero-scroll {
    display: inline-flex; flex-direction: column; align-items: center; color: rgba(255,255,255,.9); gap: 6px;
    margin-top: 44px; font-size: 12px; letter-spacing: .1em;
}
.hero-scroll i { width: 26px; height: 44px; border: 1.5px solid rgba(255,255,255,.6); border-radius: 40px; position: relative; }
.hero-scroll i::after { content: ""; position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; transform: translateX(-50%); border-radius: 4px; background: white; animation: scrollDot 1.8s infinite; }
@keyframes scrollDot { 0% { opacity: 0; transform: translate(-50%,0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translate(-50%,8px); } 100% { opacity: 0; } }

/* contents cards */
.feature-card {
    position: relative; background: white; border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: all .3s cubic-bezier(.2,.7,.2,1);
    height: 100%; display: block;
    border: 1px solid rgba(227,236,242,.45);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card .cover { position: relative; overflow: hidden; aspect-ratio: 16/11; }
.feature-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.feature-card:hover .cover img { transform: scale(1.04); }
.feature-card .cover-veil {
    position: absolute; inset: 0; background: linear-gradient(180deg, rgba(12,44,66,.03), rgba(12,44,66,.38));
}
.feature-card-body { padding: 24px 22px 26px; }
.card-topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 8px; }
.badge-soft { display: inline-flex; align-items: center; gap: 5px; background: #EDF4F9; color: var(--brand); font-size: 12px; font-weight: 700; border-radius: 999px; padding: 5px 12px; }
.badge-orange { background: #FFF0E7; color: var(--accent); }
.arrow-round {
    width: 30px; height: 30px; border-radius: 50%;
    background: #F0F5F8; display: inline-flex; align-items: center; justify-content: center;
    color: var(--brand); font-size: 12px; transition: all .25s; flex: 0 0 auto;
}
.feature-card:hover .arrow-round { background: var(--brand); color: white; transform: translateX(3px); }
.card-item-title { font-size: 17px; line-height: 1.55; font-weight: 700; color: #17384D; }
.card-item-desc { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.75; }

/* featured items */
.featured-main {
    position: relative; border-radius: 22px; overflow: hidden; min-height: 460px; display: flex; align-items: flex-end;
    box-shadow: var(--shadow);
}
.featured-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -1; }
.featured-main::after { content:""; position:absolute; inset:0; background: linear-gradient(to top, rgba(9,31,46,.88) 0%, rgba(9,31,46,.2) 45%, transparent 75%); z-index:1; }
.featured-main-content { position: relative; z-index: 2; padding: 32px; color: white; }
.featured-rank {
    display:inline-flex; align-items:center; gap:10px; background: rgba(255,255,255,.16); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.3); border-radius: 999px; padding: 6px 14px; font-size: 12px; letter-spacing: .12em; font-weight: 700;
}
.featured-tag {
    margin-top: 22px; display: flex; flex-wrap: wrap; gap: 8px;
}
.featured-tag span { font-size: 12px; color: rgba(255,255,255,.86); background: rgba(255,255,255,.14); border-radius: 999px; padding: 4px 11px; }
.featured-main-title { font-size: clamp(1.5rem,2.2vw,2rem); line-height: 1.4; font-weight: 800; margin-top: 18px; max-width: 520px; }
.featured-main-meta { font-size: 13px; color: rgba(255,255,255,.72); margin-top: 12px; }
.list-item-card {
    display: flex; background: white; border-radius: 18px; padding: 18px;
    box-shadow: 0 2px 8px rgba(0,0,0,.03); border: 1px solid rgba(227,236,242,.6);
    transition: all .25s; align-items: center; gap: 18px;
}
.list-item-card:hover { box-shadow: var(--shadow-hover); border-color: #C9DCE7; transform: translateY(-2px); }
.list-item-num { font-size: 26px; font-weight: 800; color: #D5E2EA; line-height: 1; width: 38px; text-align: center; font-family:  ui-monospace, monospace; }
.list-item-body { flex: 1; min-width: 0; }
.item-headline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.item-headline .badge { background:#E8F4EF; color:#0E8A6E; }
.item-title { font-size: 16px; font-weight: 700; color: #17384D; line-height: 1.45; margin-top: 5px; }
.item-excerpt { font-size: 13.5px; color: var(--muted); line-height: 1.7; margin-top: 5px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient: vertical; overflow: hidden; }
.item-foot { display: flex; align-items: center; margin-top: 9px; gap: 12px; font-size: 12px; color: var(--soft); }

/* feature content info */
.info-band {
    background: linear-gradient(120deg, #F3F9FC 0%, #E9F4F9 100%);
    border-radius: 24px; border: 1px solid #D9E9F2;
    padding: 42px;
}
.info-feature-block { display: flex; gap: 18px; align-items: flex-start; }
.info-icon {
    width: 54px; height: 54px; border-radius: 16px; flex: 0 0 auto;
    display: inline-flex; align-items: center; justify-content: center;
    background: white; color: var(--brand); font-size: 20px;
    box-shadow: 0 6px 16px rgba(26,109,156,.1);
    border: 1px solid rgba(255,255,255,.8);
}
.info-head { font-size: 16px; font-weight: 800; color: #17384D; }
.info-desc { font-size: 14px; line-height: 1.75; color: var(--muted); margin-top: 4px; }

/* news list */
.news-area {
    background: white; border: 1px solid rgba(227,236,242,.7);
    border-radius: 22px; padding: 28px; margin-top: 30px;
    box-shadow: var(--shadow);
}
.news-row {
    display: flex; gap: 18px; align-items: flex-start;
    padding: 20px 0; border-bottom: 1px solid #EDF3F7;
}
.news-row:last-child { border-bottom: none; }
.news-date-box { min-width: 76px; text-align: center; padding-top: 5px; }
.news-date-d { font-size: 24px; font-weight: 800; color: var(--brand); line-height: 1; }
.news-date-m { font-size: 12px; color: var(--soft); text-transform: uppercase; letter-spacing: .06em; margin-top: 4px; }
.news-cat { font-size: 11px; border-radius: 4px; background: #E9F2F8; color: var(--brand); padding: 3px 8px; font-weight: 600; letter-spacing: .04em; }
.news-link { font-size: 16px; font-weight: 700; color: #17384D; transition: color .2s; line-height: 1.55; }
.news-link:hover { color: var(--brand); }
.news-excerpt { font-size: 14px; color: var(--muted); margin-top: 6px; line-height: 1.75; }
.news-read { font-size: 13px; color: var(--brand); font-weight: 600; }

/* faq */
.faq-shell { max-width: 880px; margin: 0 auto; }
.faq-item {
    background: white; border: 1px solid var(--line); border-radius: 18px;
    padding: 22px 26px;
    box-shadow: 0 2px 8px rgba(16,60,90,.04);
    transition: background .2s, box-shadow .2s;
    cursor: pointer;
}
.faq-item:hover { border-color: #C6DCEB; }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: 16px; font-weight: 700; color: #17384D; }
.faq-q i { font-size: 14px; color: var(--brand); transition: transform .3s; flex: 0 0 auto; width: 28px; height: 28px; background: #F0F5F8; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }
.faq-a { max-height: 0; opacity: 0; overflow: hidden; transition: all .35s ease; color: var(--muted); font-size: 14.5px; line-height: 1.85; }
.faq-item.open { background: #FBFDFE; }
.faq-item.open .faq-a { max-height: 260px; opacity: 1; margin-top: 14px; padding-top: 14px; border-top: 1px dashed #DCEAF3; }
.faq-item.open .faq-q i { transform: rotate(45deg); background: var(--brand); color: #fff; }

/* cta box */
.fav-section {
    background: linear-gradient(140deg, #EFF7FB, #F4F0EC);
    border: 1px solid #DDE9F1;
    border-radius: 28px; padding: 50px 40px; text-align: center;
    position: relative; overflow: hidden;
}
.fav-section::before {
    content: ""; position: absolute; width: 360px; height: 360px; top: -160px; right: -100px;
    background: radial-gradient(circle, rgba(0,182,190,.12), transparent 65%); border-radius: 50%;
}
.fav-section .fav-icon {
    width: 66px; height: 66px; margin: 0 auto 16px;
    background: white; border-radius: 22px; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 26px rgba(12,60,90,.12); color: var(--cyan); font-size: 24px;
}
faq-favorite ...

/* footer */
.site-footer { background: #102C3D; color: rgba(255,255,255,.8); }
.footer-brand { color: white; }
.footer-link { color: rgba(255,255,255,.62); font-size: 14px; line-height: 2.3; transition: all .2s; }
.footer-link:hover { color: white; padding-left: 4px; }
.footer-label {
    display: inline-flex; padding: 5px 12px; margin: 4px 4px 0 0;
    border: 1px solid rgba(255,255,255,.16); border-radius: 999px;
    font-size: 12px; color: rgba(255,255,255,.56);
}
.footer-copyright {
    border-top: 1px solid rgba(255,255,255,.12); margin-top: 48px; padding-top: 24px;
    display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
    color: rgba(255,255,255,.42); font-size: 13px;
}
.footer-tech { font-size: 12px; line-height: 1.7; color: rgba(255,255,255,.34); }

/* responsive */
@media (max-width: 1023px) {
    .section-spacing { padding: 64px 0; }
    .container-page { padding: 0 20px; }
}
@media (max-width: 767px) {
    .header-brand-row { min-height: 60px; }
    .brand-logo { font-size: 18px; }
    .brand-logo small { display: none; }
    .brand-logo-mark { width: 32px; height: 32px; font-size: 12px; }
    .hero-module { height: auto; min-height: 0; padding: 82px 0 70px; }
    .section-title { line-height: 1.4; }
    .section-spacing { padding: 54px 0; }
    .list-item-num { font-size: 19px; width: 24px; }
    .item-hidden-sm { display: none; }
    .news-area { padding: 20px; }
}
@media (max-width: 520px) {
    .featured-main { min-height: 380px; }
    .featured-main-content { padding: 22px; }
    .faq-item { padding: 17px 16px; }
    .fav-section { padding: 38px 20px; }
}
a:focus-visible, button:focus-visible {
    outline: 3px solid rgba(0,182,190,.45);
    outline-offset: 3px; border-radius: 8px;
}

/* roulang page: article */
:root {
            --primary: #1A6D9C;
            --primary-dark: #0B4F6C;
            --cyan-accent: #00B6BE;
            --accent: #F27F3D;
            --page-bg: #FAFBFD;
            --body-text: #425466;
            --muted-text: #8C9BA0;
            --border-soft: #DCE6EE;
            --card-radius: 16px;
            --shadow-default: 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 24px rgba(16, 60, 90, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--page-bg);
            color: #283845;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        * {
            box-sizing: border-box;
        }
        .container-page {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--cyan-accent);
        }
        .site-header {
            width: 100%;
            background: #ffffff;
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid var(--border-soft);
        }
        .header-brand-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
        }
        .brand-logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            color: #ffffff;
            border-radius: 12px;
            font-weight: 800;
            font-size: 17px;
            letter-spacing: 0;
            box-shadow: 0 8px 14px rgba(11, 79, 108, 0.2);
        }
        .brand-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }
        .brand-logo-text .small {
            display: block;
        }
        .brand-logo small {
            font-size: 10px;
            font-weight: 500;
            color: var(--muted-text);
            letter-spacing: 1.3px;
            text-transform: uppercase;
            line-height: 1.35;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border-radius: 999px;
            padding: 9px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            border: 1px solid var(--border-soft);
            transition: all 0.2s ease;
        }
        .header-action-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 4px 10px rgba(26, 109, 156, 0.08);
            transform: translateY(-1px);
        }
        .nav-channel {
            background: #ffffff;
            border-top: 1px solid #E8F0F6;
        }
        .nav-channel-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 4px 0;
            overflow-x: auto;
            scrollbar-width: none;
            white-space: nowrap;
        }
        .nav-channel-inner::-webkit-scrollbar {
            display: none;
        }
        .channel-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--body-text);
            transition: all 0.2s ease;
            line-height: 1.3;
            flex-shrink: 0;
        }
        .channel-link:hover {
            background: #F0F7FC;
            color: var(--primary);
        }
        .channel-link.active {
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            color: #ffffff;
            font-weight: 600;
            box-shadow: 0 6px 14px rgba(11, 79, 108, 0.18);
        }
        .nav-scroll-space {
            flex: 1;
            height: 1px;
        }
        .site-header-placeholder {
            height: 1px;
        }
        .article-hero-image-wrap {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            max-height: 380px;
            min-height: 200px;
            background-color: #d6e3ec;
        }
        .article-hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .breadcrumb-nav {
            font-size: 13px;
            color: var(--muted-text);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav i {
            font-size: 11px;
            color: var(--muted-text);
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .article-body img {
            border-radius: 14px;
            box-shadow: var(--shadow-default);
            margin: 32px auto;
            display: block;
        }
        .article-body h2, .article-body h3 {
            font-weight: 700;
            color: #1C2C3B;
            line-height: 1.4;
            margin: 32px 0 16px;
        }
        .article-body h2 {
            font-size: 24px;
        }
        .article-body h3 {
            font-size: 20px;
        }
        .article-body p {
            color: var(--body-text);
            font-size: 16px;
            line-height: 1.9;
            margin: 18px 0;
        }
        .article-body ul, .article-body ol {
            margin: 18px 0 18px 24px;
            color: var(--body-text);
            line-height: 1.9;
        }
        .section-common {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .site-footer {
            background: linear-gradient(180deg, #0B1C29 0%, #0B4F6C 130%);
            color: #ffffff;
            margin-top: 60px;
        }
        .brand-logo.footer-brand {
            color: #fff;
        }
        .brand-logo.footer-brand .brand-logo-text {
            font-size: 20px;
        }
        .footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: #ffffff;
        }
        .footer-label {
            font-size: 12px;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 12px;
            border-radius: 999px;
            transition: all 0.2s ease;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-label:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.2);
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 42px;
            padding-top: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-tech {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 18px;
            padding-bottom: 10px;
            line-height: 1.7;
        }
        .faq-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid #dce6ee;
            padding: 24px 28px;
            box-shadow: var(--shadow-default);
            margin-bottom: 16px;
            transition: box-shadow .2s ease;
        }
        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: #1c2c3b;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer {
            color: var(--body-text);
            font-size: 14px;
            line-height: 1.8;
            padding-top: 8px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 12px 26px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(11, 79, 108, 0.12);
            transition: all .25s ease;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(11, 79, 108, 0.2);
            color: #fff;
        }
        .btn-primary i {
            transition: transform 0.2s ease;
        }
        .btn-primary:hover i {
            transform: translateX(4px);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: 999px;
            padding: 12px 26px;
            font-size: 14px;
            font-weight: 600;
            transition: all .25s ease;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(26, 109, 156, 0.06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .article-meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #EFF5F9;
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 13px;
            font-weight: 500;
        }
        .article-card-related {
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
            border: 1px solid #EDF3F7;
        }
        .article-card-related:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .article-card-related .image {
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .article-card-related .image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .article-card-related:hover .image img {
            transform: scale(1.04);
        }
        .article-card-related .body {
            padding: 16px 18px 20px;
        }
        .tag-pill {
            display: inline-block;
            background: #EFF5F9;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            color: var(--primary);
        }
        .card-thumb {
            border-radius: 14px;
            overflow: hidden;
        }
        .article-card-meta {
            color: var(--muted-text);
            font-size: 13px;
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--primary), var(--cyan-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            padding: 3px 12px;
            border-radius: 999px;
            font-weight: 500;
        }
        .badge-soft {
            background: #E7F1F8;
            color: var(--primary);
        }
        .badge-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .badge-cyan {
            background: rgba(0, 182, 190, 0.1);
            color: #008a90;
        }
        :focus-visible {
            outline: 3px solid rgba(0, 182, 190, 0.55);
            outline-offset: 3px;
            border-radius: 6px;
        }
        @media (max-width: 1024px) {
            .container-page {
                padding-left: 20px;
                padding-right: 20px;
            }
            .brand-logo {
                font-size: 20px;
            }
        }
        @media (max-width: 768px) {
            .container-page {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header {
                position: relative;
                top: auto;
            }
            .header-brand-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo-mark {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .channel-link {
                padding: 7px 14px;
                font-size: 13px;
            }
            .section-common {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .footer-copyright {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
            .article-body p {
                font-size: 15px;
                line-height: 1.85;
            }
            .article-hero-image-wrap {
                border-radius: 14px;
            }
        }
        @media (max-width: 520px) {
            .header-action-btn span {
                display: none;
            }
            .header-action-btn {
                padding: 10px 14px;
            }
            .channel-link {
                font-size: 13px;
                padding: 6px 12px;
            }
            .nav-channel-inner {
                gap: 2px;
            }
            .brand-logo-text {
                font-size: 18px;
            }
            .brand-logo small {
                font-size: 9px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 13px;
            }
        }
        .back-to-top {
            position: relative;
        }
        .blog-article-shell {
            background: #fff;
            border-radius: 24px;
            border: 1px solid #eef3f7;
            padding: 32px;
            box-shadow: var(--shadow-default);
        }
        @media(max-width:62rem) {
            .blog-article-shell {
                padding: 22px;
            }
        }
        .divider-line {
            border: none;
            border-top: 1px solid #e3ecf3;
            margin: 28px 0;
        }
        .related-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .related-title h2 {
            font-size: 22px;
            font-weight: 700;
            color: #1C2C3B;
            margin: 0;
        }

/* roulang page: category1 */
:root {
            --brand: #1A6D9C;
            --brand-deep: #0B4F6C;
            --cyan: #00B6BE;
            --accent: #F27F3D;
            --bg: #FAFBFD;
            --card: #ffffff;
            --text: #425466;
            --muted: #8C9BA0;
            --border: #E5ECF1;
            --radius-lg: 20px;
            --radius-md: 14px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 14px 28px rgba(16, 60, 90, 0.10);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 110px;
        }
        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            color: #18364A;
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin: 0;
        }
        ul {
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        button {
            font: inherit;
            border: 0;
            cursor: pointer;
        }
        .container-page {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .page-section {
            padding: 72px 0;
            scroll-margin-top: 112px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .12em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-kicker i {
            color: var(--cyan);
            font-size: 15px;
        }
        .section-title {
            font-size: clamp(26px, 3vw, 34px);
            line-height: 1.3;
        }
        .section-desc {
            max-width: 640px;
            color: var(--muted);
            font-size: 15px;
            margin-top: 14px;
        }

        /* Header + Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background: #fff;
            box-shadow: 0 6px 24px rgba(12, 60, 90, 0.05);
            border-bottom: 1px solid rgba(26, 109, 156, 0.08);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 14px 0;
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .brand-logo-mark {
            flex: none;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, #1A6D9C, #0B4F6C);
            color: #fff;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            letter-spacing: .02em;
            box-shadow: 0 8px 18px rgba(26, 109, 156, 0.22);
        }
        .brand-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            font-weight: 800;
            color: #18364A;
            font-size: 20px;
        }
        .brand-logo-text small {
            font-size: 10px;
            color: var(--muted);
            letter-spacing: .14em;
            margin-top: 4px;
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .header-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: 999px;
            border: 1.5px solid #E1E9EF;
            background: #fff;
            color: var(--brand-deep);
            font-size: 13px;
            font-weight: 700;
            transition: all .25s ease;
        }
        .header-action-btn:hover {
            border-color: var(--brand);
            color: var(--brand);
            transform: translateY(-1px);
        }
        .nav-channel {
            border-top: 1px solid #F0F4F7;
            background: #FFFFFF;
        }
        .nav-channel-inner {
            display: flex;
            gap: 10px;
            padding: 12px 0;
            overflow-x: auto;
            scrollbar-width: none;
            white-space: nowrap;
        }
        .nav-channel-inner::-webkit-scrollbar {
            display: none;
        }
        .channel-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            color: #425466;
            background: transparent;
            border: 1px solid transparent;
            transition: all .25s ease;
        }
        .channel-link i {
            font-size: 13px;
            color: var(--brand);
        }
        .channel-link:hover {
            background: #F0F7FB;
            color: var(--brand-deep);
        }
        .channel-link.active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 8px 16px rgba(26, 109, 156, 0.22);
        }
        .channel-link.active i {
            color: #fff;
        }

        /* Hero */
        .hero-guide {
            position: relative;
            isolation: isolate;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 70px 0 80px;
            background-image: linear-gradient(105deg, rgba(6, 32, 52, 0.72) 0%, rgba(11, 79, 108, 0.50) 55%, rgba(0, 182, 190, 0.22) 100%), url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center 24%;
            color: #fff;
        }
        .hero-guide::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(250, 251, 253, 0.02) 100%);
            z-index: -1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .16em;
            background: rgba(255, 255, 255, 0.14);
            padding: 8px 15px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(10px);
            margin-bottom: 24px;
        }
        .hero-ear-icon {
            color: #8CE3E7;
        }
        .hero-content h1 {
            color: #fff;
            font-size: clamp(32px, 4.2vw, 48px);
            line-height: 1.24;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }
        .hero-content .hero-lead {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 36px;
        }
        .hero-motivation {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.78);
        }
        .hero-motivation i {
            color: #9DEBF0;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            border-radius: 999px;
            padding: 13px 26px;
            font-size: 14px;
            font-weight: 700;
            line-height: 1.4;
            transition: all .26s ease;
            border: 1.5px solid transparent;
            box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
        }
        .btn i {
            font-size: 14px;
        }
        .btn-primary {
            background: linear-gradient(135deg, #1A6D9C, #0B4F6C);
            color: #fff;
            box-shadow: 0 10px 20px rgba(11, 79, 108, 0.20);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #2b7eac, #0f5e7c);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.96);
            color: #0B4F6C;
        }
        .btn-light:hover {
            background: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 14px 26px rgba(0, 0, 0, 0.1);
        }
        .btn-outline {
            background: transparent;
            border-color: #BED5E4;
            color: var(--brand-deep);
            box-shadow: none;
        }
        .btn-outline:hover {
            border-color: var(--brand);
            color: var(--brand);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #ef6f26;
            transform: translateY(-2px);
        }
        .btn:focus-visible,
        .btn-outline:focus-visible,
        .channel-link:focus-visible,
        .header-action-btn:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(0, 182, 190, 0.3);
            outline-offset: 3px;
        }

        /* Feature Split */
        .cover-frame {
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 18px 36px rgba(16, 60, 90, 0.12);
        }
        .feature-list {
            list-style: none;
            margin-top: 20px;
            display: grid;
            gap: 16px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 13px;
            background: #fff;
            padding: 15px 18px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid #EEF3F7;
            font-size: 14px;
            transition: all .3s ease;
        }
        .feature-list li:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            flex: none;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(0, 182, 190, 0.12);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #0B8490;
            font-size: 15px;
        }

        .note-box {
            background: #EBF5F9;
            border-left: 4px solid var(--cyan);
            border-radius: 0 14px 14px 0;
            padding: 14px 18px;
            font-size: 14px;
            color: #2C566C;
            margin-top: 24px;
        }

        /* Filter */
        .channel-filter {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 22px;
            background: #FFFFFF;
            border: 1px solid #EAF0F4;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
            scrollbar-width: none;
            flex-wrap: nowrap;
        }
        .channel-filter::-webkit-scrollbar {
            display: none;
        }
        .filter-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            flex: none;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            flex: none;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 999px;
            background: #F3F7F9;
            color: #425466;
            font-size: 13px;
            font-weight: 700;
            border: 1px solid transparent;
            transition: all .25s ease;
            cursor: pointer;
        }
        .filter-chip:hover {
            background: #E9F3F8;
            color: var(--brand-deep);
        }
        .filter-chip.is-active,
        .filter-chip.active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 8px 16px rgba(26, 109, 156, 0.18);
        }
        .filter-chip.is-active i,
        .filter-chip.active i {
            color: #BCE9ED;
        }

        /* Rank */
        .rank-item {
            background: #fff;
            border: 1px solid #EAF0F4;
            border-radius: 18px;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }
        .rank-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .rank-no {
            flex: none;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: #F0F7FB;
            color: var(--brand);
            font-weight: 800;
            font-size: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-variant-numeric: tabular-nums;
        }
        .rank-no.hot {
            background: rgba(242, 127, 61, 0.12);
            color: var(--accent);
        }
        .rank-body {
            flex: 1;
            min-width: 0;
        }
        .rank-body strong {
            display: block;
            font-size: 16px;
            color: #223B4C;
            font-weight: 700;
            line-height: 1.4;
        }
        .rank-body p {
            color: var(--muted);
            font-size: 13.5px;
            margin-top: 4px;
            line-height: 1.7;
        }
        .rank-tag {
            flex: none;
            font-size: 12px;
            color: var(--brand);
            background: #EDF7FB;
            padding: 6px 11px;
            border-radius: 999px;
            font-weight: 700;
        }
        .rank-arrow {
            flex: none;
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: #F4F8FA;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 13px;
            transition: all .25s;
        }
        .rank-item:hover .rank-arrow {
            background: var(--brand);
            color: #fff;
            transform: translateX(3px);
        }
        .rank-inline-card {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        /* Card */
        .topic-card {
            background: #fff;
            border: 1px solid #E9EFF4;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .3s ease, box-shadow .3s ease;
            height: 100%;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-cover {
            background: #DCE9F0;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            position: relative;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            transition: transform .45s ease;
        }
        .topic-card:hover .card-cover img {
            transform: scale(1.04);
        }
        .cover-chip {
            position: absolute;
            left: 14px;
            top: 14px;
            z-index: 2;
            padding: 6px 12px;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            color: var(--brand-deep);
        }
        .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .card-body h3 {
            font-size: 18px;
            line-height: 1.45;
        }
        .card-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--muted);
        }
        .card-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .card-link span {
            border-bottom: 1px solid transparent;
            transition: border-color .25s;
        }
        .card-link i {
            transition: transform .25s;
        }
        .card-link:hover span {
            border-color: var(--brand);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 18px;
        }
        .step-card {
            background: #fff;
            border: 1px solid #E8EEF3;
            border-radius: 20px;
            padding: 24px 20px;
            text-align: left;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            scroll-margin-top: 140px;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            font-weight: 800;
            font-size: 28px;
            color: #E7F0F5;
            line-height: 1;
            margin-bottom: 20px;
            font-variant-numeric: tabular-nums;
        }
        .step-card strong {
            color: #1C3B4D;
            font-size: 16px;
            display: block;
            margin-bottom: 8px;
        }
        .step-card p {
            color: var(--muted);
            font-size: 13.5px;
            line-height: 1.8;
        }

        /* FAQ */
        .faq-section {
            background: linear-gradient(180deg, #F2F7FA, #F9FCFD);
            border-top: 1px solid #E5EDF2;
            border-bottom: 1px solid #E5EDF2;
        }
        .faq-wrap {
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
            display: grid;
            gap: 14px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid #E9EFF4;
            border-radius: 16px;
            padding: 0 4px;
            overflow: hidden;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            transition: box-shadow .25s;
        }
        .faq-item:hover {
            box-shadow: 0 8px 20px rgba(16, 60, 90, 0.08);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 22px;
            cursor: pointer;
            font-weight: 700;
            color: #1B3E50;
            font-size: 15px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            flex: none;
            width: 28px;
            height: 28px;
            border-radius: 10px;
            background: #EAF4F9;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 14px;
            transition: all .3s;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--brand);
            color: #fff;
        }
        .faq-item .faq-answer {
            padding: 0 22px 22px 22px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.9;
        }
        .faq-item .faq-answer strong {
            color: var(--brand-deep);
        }

        /* CTA band */
        .fav-band {
            border-radius: 24px;
            background: linear-gradient(135deg, #EAF5F9, #FFFFFF);
            border: 1px solid rgba(26, 109, 156, 0.13);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            margin: 64px 0;
        }
        .fav-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #FFFFFF;
            box-shadow: 0 8px 18px rgba(26, 109, 156, 0.12);
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .fav-band h2 {
            font-size: 22px;
        }
        .fav-band p {
            color: var(--muted);
            font-size: 14px;
            margin-top: 6px;
            max-width: 600px;
        }
        .fav-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* Footer */
        .site-footer {
            background: linear-gradient(145deg, #0F3C57, #0B4F6C 60%, #154861);
            color: rgba(255, 255, 255, .78);
            padding-top: 0;
        }
        .footer-brand {
            color: #fff;
        }
        .footer-brand .brand-logo-text {
            color: #fff;
        }
        .footer-link {
            color: rgba(255, 255, 255, .62);
            font-size: 14px;
            padding: 5px 0;
            display: inline-block;
            transition: color .2s;
        }
        .footer-link:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-label {
            display: inline-block;
            background: rgba(255, 255, 255, 0.08);
            padding: 7px 13px;
            border-radius: 999px;
            font-size: 12px;
            color: rgba(255, 255, 255, .66);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, .12);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }
        .footer-tech {
            margin-top: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, .34);
            line-height: 1.8;
        }
        .footer-cms-note {
            color: rgba(255, 255, 255, .36);
            font-size: 12px;
        }

        @media (max-width: 1023px) {
            .steps-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .rank-inline-card {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
        }
        @media (max-width: 768px) {
            .container-page {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-section {
                padding: 52px 0;
            }
            .hero-guide {
                min-height: 520px;
                padding: 52px 0 58px;
            }
            .hero-guide::before {
                content: "";
                position: absolute;
                inset: 0;
                background: rgba(3, 25, 43, .30);
                z-index: -1;
            }
            .header-brand-row {
                flex-wrap: wrap;
            }
            .header-actions {
                margin-left: auto;
            }
            .brand-logo-text small {
                display: none;
            }
            .fav-band {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .rank-item {
                flex-wrap: wrap;
                padding: 14px;
                gap: 12px;
            }
            .rank-tag {
                display: none;
            }
            .rank-arrow {
                margin-left: auto;
            }
        }
        @media (max-width: 540px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .rank-inline-card {
                grid-template-columns: 1fr;
            }
            .section-head {
                align-items: flex-start;
                flex-direction: column;
            }
            .brand-logo-text {
                font-size: 18px;
            }
            .header-action-btn{
                padding: 8px 12px;
                font-size: 12px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-content .hero-lead {
                font-size: 15px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .channel-link {
                padding: 7px 13px;
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A6D9C;
            --primary-deep: #0B4F6C;
            --cyan: #00B6BE;
            --accent: #F27F3D;
            --page-bg: #FAFBFD;
            --card: #FFFFFF;
            --text-main: #2B3A4A;
            --text-body: #425466;
            --text-muted: #8C9BA0;
            --line: #E4ECF2;
            --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 24px rgba(16, 60, 90, 0.08);
            --radius: 16px;
            --container: 1280px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        * {
            box-sizing: border-box;
        }
        body, h1, h2, h3, h4, p, ul, ol, figure {
            margin: 0;
            padding: 0;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
        }

        .container-page {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(228, 236, 242, 0.8);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 28px rgba(26, 109, 156, 0.08);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 74px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .brand-logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, #1A6D9C, #0B4F6C);
            color: #fff;
            font-weight: 800;
            font-size: 17px;
            letter-spacing: 0.5px;
            box-shadow: 0 6px 18px rgba(26, 109, 156, 0.22);
        }

        .brand-logo-text {
            font-weight: 800;
            color: #102A43;
            font-size: 20px;
            line-height: 1.2;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .brand-logo-text small {
            font-size: 10px;
            letter-spacing: 2px;
            color: #8C9BA0;
            font-weight: 600;
        }

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

        .header-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #0B4F6C;
            border: 1.5px solid rgba(26, 109, 156, 0.2);
            background: rgba(255, 255, 255, 0.8);
            transition: all .25s ease;
        }

        .header-action-btn:hover {
            background: #1A6D9C;
            border-color: #1A6D9C;
            color: #fff;
            transform: translateY(-1px);
        }

        .header-action-btn:focus-visible,
        .channel-link:focus-visible,
        .button:focus-visible,
        .tag-pill:focus-visible,
        .faq-question:focus-visible {
            outline: 3px solid rgba(0, 182, 190, 0.45);
            outline-offset: 2px;
        }

        /* nav channel */
        .nav-channel {
            background: #FFFFFF;
            border-top: 1px solid #F0F4F8;
        }

        .nav-channel-inner {
            display: flex;
            align-items: center;
            gap: 6px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: #D6E2EB transparent;
            padding: 4px 0;
            min-height: 52px;
        }

        .nav-channel-inner::-webkit-scrollbar {
            height: 4px;
        }

        .channel-link {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #425466;
            background: transparent;
            border: 1px solid transparent;
            transition: all .22s ease;
            white-space: nowrap;
        }

        .channel-link i {
            font-size: 13px;
            color: #8C9BA0;
            transition: color .22s;
        }

        .channel-link:hover {
            color: #1A6D9C;
            background: #EFF5FA;
        }

        .channel-link.active {
            color: #0B4F6C;
            background: #E5F2F7;
            border: 1px solid rgba(26, 109, 156, 0.16);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7);
        }

        .channel-link.active i {
            color: #1A6D9C;
        }

        /* hero */
        .category-hero {
            position: relative;
            background-color: #0B4F6C;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding-top: 96px;
            padding-bottom: 104px;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 34, 58, 0.42) 0%, rgba(11, 79, 108, 0.34) 45%, transparent 100%);
        }

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

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-size: 13px;
            letter-spacing: 1px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .hero-kicker i {
            color: #7FE6E8;
        }

        .hero h1 {
            font-size: clamp(34px, 5vw, 52px);
            line-height: 1.25;
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-top: 22px;
            max-width: 800px;
            text-shadow: 0 2px 10px rgba(7, 30, 50, 0.08);
        }

        .hero-desc {
            margin-top: 22px;
            max-width: 680px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 16.5px;
            line-height: 1.9;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
        }

        .button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
        }

        .button i {
            font-size: 14px;
        }

        .button-primary {
            background: var(--cyan);
            color: #fff;
            box-shadow: 0 4px 14px rgba(0, 182, 190, 0.38);
        }

        .button-primary:hover {
            background: #009ca4;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 150, 160, 0.28);
        }

        .button-secondary {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.75);
            color: #fff;
        }

        .button-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            margin-top: 46px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.22);
        }

        .hero-metric strong {
            display: block;
            font-size: 28px;
            font-weight: 900;
            color: #fff;
        }

        .hero-metric span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.74);
        }

        /* section */
        .section-white {
            background: #fff;
        }

        .section-soft {
            background: #FAFBFD;
        }

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

        .section-head {
            max-width: 800px;
            margin-bottom: 48px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            font-weight: 700;
            color: #1A6D9C;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-eyebrow i {
            color: #00B6BE;
        }

        .section-head h2 {
            font-size: clamp(24px, 3.4vw, 34px);
            font-weight: 900;
            letter-spacing: -0.4px;
            line-height: 1.3;
            color: #162B3A;
        }

        .section-head p {
            color: #5C6C7A;
            font-size: 15.5px;
            line-height: 1.8;
            margin-top: 14px;
        }

        /* tags scroll */
        .tag-filter-scroll {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 12px;
            scrollbar-width: thin;
        }

        .tag-filter-scroll::-webkit-scrollbar {
            height: 5px;
            background: #EAF1F6;
            border-radius: 4px;
        }

        .tag-filter-scroll::-webkit-scrollbar-thumb {
            background: #CFDEE8;
            border-radius: 4px;
        }

        .tag-pill {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 13.5px;
            font-weight: 600;
            color: #3E5A6E;
            background: #fff;
            border: 1px solid #DEE9F0;
            border-radius: 999px;
            transition: all .2s ease;
        }

        .tag-pill i {
            font-size: 12px;
            color: #8C9BA0;
        }

        .tag-pill.active,
        .tag-pill:hover {
            background: #0B4F6C;
            border-color: #0B4F6C;
            color: #fff;
        }

        .tag-pill.active i,
        .tag-pill:hover i {
            color: #A0E8EA;
        }

        /* feature wide narrow */
        .feature-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid #EAF0F5;
            border-radius: 18px;
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .feature-icon-large {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #E1F3F5;
            color: #00A9B3;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 800;
            color: #1D3343;
            line-height: 1.45;
        }

        .feature-card p {
            color: #5C7080;
            font-size: 14.5px;
            line-height: 1.85;
            margin-top: 12px;
        }

        .check-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .check-item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 15px;
            line-height: 1.7;
            font-weight: 500;
            color: #2E4A5D;
        }

        .check-item i {
            color: #00B6BE;
            margin-top: 3px;
            font-size: 14px;
        }

        /* list top */
        .top-card {
            border-radius: 18px;
            background: #fff;
            border: 1px solid #E9F0F5;
            box-shadow: var(--shadow-card);
            padding: 16px 20px;
            display: flex;
            gap: 18px;
            align-items: center;
            transition: all .25s ease;
        }

        .top-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .top-rank {
            font-size: 22px;
            font-weight: 900;
            color: #D6E4EC;
            min-width: 42px;
            font-variant-numeric: tabular-nums;
            font-family: Arial, sans-serif;
        }

        .top-card:nth-child(1) .top-rank,
        .top-card:nth-child(2) .top-rank,
        .top-card:nth-child(3) .top-rank {
            color: #F27F3D;
        }

        .top-cover {
            width: 84px;
            height: 68px;
            object-fit: cover;
            border-radius: 12px;
            background: #E9F0F5;
        }

        .top-info {
            flex: 1;
            min-width: 0;
        }

        .top-info h3 {
            font-size: 16.5px;
            font-weight: 700;
            color: #273F52;
        }

        .top-info p {
            font-size: 13px;
            color: #8496A2;
            margin-top: 4px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .top-meta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12.5px;
            font-weight: 600;
            color: #1A6D9C;
            background: #EAF3F9;
            padding: 5px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }

        /* content cards */
        .content-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .content-card {
            background: #fff;
            border: 1px solid #EAEFF4;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .28s ease;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .content-card-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #E4EDF3;
        }

        .content-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .content-card:hover .content-card-cover img {
            transform: scale(1.045);
        }

        .content-card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .content-badge {
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 700;
            color: #0B4F6C;
            background: #E6F2F8;
            padding: 4px 10px;
            border-radius: 6px;
        }

        .content-card-title {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.45;
            color: #213B4C;
            margin-top: 6px;
        }

        .content-card-body p {
            color: #667988;
            font-size: 14px;
            line-height: 1.75;
            margin-top: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card-footer {
            margin-top: auto;
            padding-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: #93A3AD;
        }

        .text-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #1A6D9C;
            font-weight: 700;
            font-size: 14px;
            transition: gap .22s ease;
        }

        .text-link-arrow:hover {
            gap: 10px;
            color: #0B4F6C;
        }

        /* huge feature card */
        .wide-visual-row {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 26px;
            align-items: stretch;
        }

        .wide-visual-card {
            background: #0B4F6C;
            border-radius: 20px;
            padding: 36px;
            color: #fff;
            min-height: 360px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: flex-end;
        }

        .wide-visual-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(3, 33, 48, 0.4), rgba(11, 79, 108, 0.15));
        }

        .wide-visual-card-content {
            position: relative;
            z-index: 1;
            max-width: 560px;
        }

        .wide-visual-card h2 {
            font-size: 28px;
            font-weight: 900;
            line-height: 1.4;
        }

        .wide-visual-card p {
            color: rgba(255, 255, 255, 0.85);
            margin-top: 14px;
            line-height: 1.85;
        }

        .dark-card-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            align-content: center;
        }

        .dark-list-item {
            background: #F0F7FA;
            border-radius: 14px;
            padding: 16px 18px;
            border: 1px solid #DFEBF2;
        }

        .dark-list-item h3 {
            color: #0B3E55;
            font-weight: 800;
            font-size: 15.5px;
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .dark-list-item h3 i {
            color: #00A9B2;
        }

        .dark-list-item p {
            font-size: 13px;
            color: #637B89;
            margin-top: 6px;
            line-height: 1.7;
            padding-left: 26px;
        }

        /* breadcrumb small */
        .crumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            color: rgba(255, 255, 255, 0.62);
            font-size: 13px;
            margin-bottom: 20px;
        }

        .crumb a {
            color: rgba(255, 255, 255, 0.82);
        }

        .crumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid #E6EDF3;
            border-radius: 16px;
            overflow: hidden;
            transition: all .25s ease;
        }

        .faq-item.open {
            box-shadow: 0 10px 24px rgba(16, 60, 90, 0.06);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            text-align: left;
            background: transparent;
            border: none;
            padding: 20px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: #243B4C;
        }

        .faq-icon {
            position: relative;
            width: 28px;
            min-width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #EAF3F8;
            color: #1A6D9C;
            transition: all .3s ease;
        }

        .faq-icon i {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 13px;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .38s ease;
        }

        .faq-answer p {
            padding: 0 24px 22px;
            color: #627B8B;
            font-size: 14.5px;
            line-height: 1.9;
        }

        /* fav CTA */
        .fav-cta {
            background: #F1F6FA;
            border: 1px solid #DFEAEF;
            border-radius: 24px;
            box-shadow: var(--shadow-card);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .fav-cta::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(0, 182, 190, 0.07);
        }

        .fav-cta h2 {
            font-size: 24px;
            font-weight: 900;
            color: #15374B;
        }

        .fav-cta p {
            color: #5E7785;
            max-width: 640px;
            margin-top: 10px;
        }

        .fav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 24px;
        }

        .fav-link {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            background: #fff;
            border: 1.5px solid #CFDFE8;
            border-radius: 999px;
            padding: 11px 20px;
            font-weight: 700;
            font-size: 14px;
            color: #0B4F6C;
            transition: all .22s ease;
        }

        .fav-link:hover {
            border-color: #1A6D9C;
            background: #1A6D9C;
            color: #fff;
        }

        /* footer */
        .site-footer {
            background: #0B2C3D;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0;
        }

        .footer-brand {
            color: #fff;
        }

        .footer-link {
            display: inline-block;
            color: rgba(255, 255, 255, 0.58);
            font-size: 14px;
            line-height: 2.4;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-link:hover {
            color: #fff;
            padding-left: 3px;
        }

        .footer-label {
            display: inline-block;
            font-size: 12.5px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            padding: 6px 12px;
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.7);
            transition: all .2s ease;
        }

        .footer-label:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.28);
        }

        .footer-copyright {
            margin-top: 44px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: rgba(255, 255, 255, 0.48);
            font-size: 13px;
        }

        .footer-tech {
            margin-top: 18px;
            padding-bottom: 6px;
            font-size: 12px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.36);
        }

        /* responsive */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .content-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .wide-visual-row {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: 72px 0;
            }
        }

        @media (max-width: 767px) {
            .container-page {
                padding-left: 18px;
                padding-right: 18px;
            }
            .header-brand-row {
                min-height: 66px;
            }
            .brand-logo-mark {
                width: 40px;
                height: 40px;
                border-radius: 12px;
                font-size: 15px;
            }
            .brand-logo-text {
                font-size: 17px;
            }
            .brand-logo-text small {
                font-size: 8.5px;
            }
            .header-action-btn {
                padding: 8px 13px;
                font-size: 13px;
            }
            .category-hero {
                padding: 58px 0 62px;
            }
            .hero-metrics {
                gap: 24px;
                margin-top: 34px;
            }
            .hero-metric strong {
                font-size: 24px;
            }
            .section-padding {
                padding: 54px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .top-card {
                align-items: flex-start;
                flex-wrap: wrap;
            }
            .top-cover {
                width: 100%;
                height: 130px;
            }
            .top-meta {
                margin-left: auto;
            }
            .content-card-grid {
                grid-template-columns: 1fr;
            }
            .fav-cta {
                padding: 28px;
            }
            .nav-channel-inner {
                scrollbar-width: none;
            }
            .nav-channel-inner::-webkit-scrollbar {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container-page {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-action-btn span {
                display: none;
            }
            .header-action-btn i {
                font-size: 16px;
            }
            .hero-buttons .button {
                width: 100%;
            }
            .feature-card {
                padding: 22px;
            }
            .wide-visual-card {
                padding: 26px;
            }
            .content-card-body {
                padding: 18px;
            }
        }