/* roulang page: category1 */
:root {
            --blue: #1264d8;
            --blue-dark: #0d3b82;
            --blue-soft: #eaf3ff;
            --ink: #132238;
            --muted: #6b7a90;
            --line: #dfe8f2;
            --paper: #ffffff;
            --mist: #f5f8fc;
            --navy: #0f2547;
            --green: #13a879;
            --radius: 16px;
            --shadow: 0 14px 36px rgba(26, 67, 116, .10);
            --container: 1180px;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            background: var(--paper);
            color: var(--ink);
            font-family: "Noto Sans SC", "Manrope", Arial, sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; width: 100%; object-fit: cover; }
        button, input { font: inherit; }
        button { cursor: pointer; border: 0; }
        .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
        .eyebrow {
            color: var(--blue);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .16em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: end;
            gap: 24px;
            margin-bottom: 28px;
        }
        .section-head h2 {
            font-size: clamp(25px, 3vw, 36px);
            line-height: 1.2;
            letter-spacing: -.02em;
        }
        .section-head p {
            max-width: 510px;
            color: var(--muted);
            font-size: 14px;
        }
        .more-link {
            color: var(--blue);
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
        }
        .more-link:hover { color: var(--blue-dark); }

        header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(255,255,255,.94);
            border-bottom: 1px solid rgba(223,232,242,.9);
            backdrop-filter: blur(16px);
        }
        .nav-shell { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
        .brand { display: flex; align-items: center; gap: 11px; min-width: max-content; }
        .brand-mark {
            width: 38px; height: 38px; display: grid; place-items: center;
            border-radius: 11px; color: #fff; background: var(--blue);
            font-weight: 800; font-size: 18px; box-shadow: 0 7px 16px rgba(18,100,216,.25);
        }
        .brand-name { font-size: 16px; font-weight: 800; letter-spacing: -.02em; }
        .brand-name span { color: var(--blue); }
        .nav-links { display: flex; align-items: center; gap: 25px; color: #50627b; font-size: 14px; font-weight: 600; }
        .nav-links a { position: relative; padding: 27px 0; }
        .nav-links a::after {
            content: ""; position: absolute; height: 2px; width: 0; bottom: 20px; left: 0;
            background: var(--blue); transition: width .2s ease;
        }
        .nav-links a:hover, .nav-links a.active { color: var(--blue); }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-action {
            padding: 10px 16px; color: #fff; background: var(--navy); border-radius: 9px;
            font-size: 13px; font-weight: 700; transition: .2s ease;
        }
        .nav-action:hover { background: var(--blue); transform: translateY(-1px); }
        .menu-toggle { display: none; color: var(--navy); background: transparent; font-size: 26px; }

        .hero {
            min-height: 570px;
            display: flex;
            align-items: center;
            background:
                linear-gradient(90deg, rgba(247,250,254,.98) 0%, rgba(247,250,254,.88) 47%, rgba(247,250,254,.2) 100%),
                url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1800&q=85") center/cover;
            border-bottom: 1px solid var(--line);
        }
        .hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr); align-items: center; gap: 60px; }
        .hero h1 { max-width: 650px; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: -.045em; margin-bottom: 20px; }
        .hero h1 em { color: var(--blue); font-style: normal; }
        .hero-sub { color: var(--navy); font-size: 20px; font-weight: 700; margin-bottom: 13px; }
        .hero-copy { max-width: 580px; color: #64758a; font-size: 15px; }
        .hero-actions { display: flex; gap: 12px; margin-top: 29px; flex-wrap: wrap; }
        .btn { display: inline-flex; justify-content: center; align-items: center; gap: 8px; border-radius: 9px; padding: 12px 20px; font-size: 14px; font-weight: 700; transition: .2s ease; }
        .btn-primary { color: #fff; background: var(--blue); box-shadow: 0 10px 22px rgba(18,100,216,.22); }
        .btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); }
        .btn-light { color: var(--blue-dark); background: #fff; border: 1px solid var(--line); }
        .btn-light:hover { border-color: var(--blue); color: var(--blue); }
        .hero-panel { padding: 24px; background: rgba(255,255,255,.91); border: 1px solid rgba(255,255,255,.8); border-radius: 18px; box-shadow: var(--shadow); }
        .panel-top { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 17px; margin-bottom: 17px; }
        .panel-top strong { font-size: 15px; }
        .live-dot { color: var(--green); font-size: 12px; font-weight: 700; }
        .live-dot::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--green); margin-right: 7px; }
        .signal-list { display: grid; gap: 14px; }
        .signal { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
        .signal-label { color: var(--muted); font-size: 13px; }
        .signal strong { color: var(--navy); font-size: 22px; }
        .signal-bar { height: 5px; flex: 1; max-width: 140px; border-radius: 5px; background: #e8eff8; overflow: hidden; }
        .signal-bar i { display: block; height: 100%; background: var(--blue); border-radius: inherit; }

        section { padding: 78px 0; }
        .stats-band { padding: 24px 0; background: var(--navy); color: #fff; }
        .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .stat { padding: 6px 24px; border-left: 1px solid rgba(255,255,255,.17); }
        .stat:first-child { border-left: 0; }
        .stat strong { display: block; font-size: 29px; line-height: 1.1; }
        .stat span { color: #afc3df; font-size: 13px; }

        .latest { background: var(--mist); }
        .content-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .content-card { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 5px 16px rgba(34,71,112,.04); transition: .24s ease; }
        .content-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #c6dcf8; }
        .card-image { position: relative; aspect-ratio: 1.35 / 1; overflow: hidden; }
        .card-image img { height: 100%; transition: transform .35s ease; }
        .content-card:hover .card-image img { transform: scale(1.05); }
        .badge { position: absolute; left: 12px; top: 12px; padding: 3px 8px; border-radius: 5px; color: #fff; background: var(--blue); font-size: 11px; font-weight: 800; }
        .card-body { padding: 15px 16px 17px; }
        .card-title { font-size: 15px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; color: var(--muted); font-size: 12px; }
        .score { color: #ed9a29; font-weight: 800; }

        .matrix { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
        .matrix-item { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: .2s ease; }
        .matrix-item:hover { border-color: #a8c9f3; box-shadow: var(--shadow); }
        .matrix-index { color: var(--blue); font: 800 12px "Manrope", sans-serif; letter-spacing: .12em; }
        .matrix-item h3 { margin: 16px 0 8px; font-size: 18px; }
        .matrix-item p { color: var(--muted); font-size: 13px; line-height: 1.75; }

        .popular-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
        .feature-card { position: relative; min-height: 340px; overflow: hidden; border-radius: var(--radius); color: #fff; }
        .feature-card img { position: absolute; inset: 0; height: 100%; }
        .feature-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8,25,51,.88), rgba(8,25,51,.04) 72%); }
        .feature-copy { position: absolute; z-index: 1; left: 26px; right: 26px; bottom: 24px; }
        .feature-copy h3 { font-size: 25px; margin-bottom: 7px; }
        .feature-copy p { color: #d7e4f4; font-size: 13px; }
        .small-popular { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .small-item { overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
        .small-item img { aspect-ratio: 1.45 / 1; }
        .small-item div { padding: 12px 14px; }
        .small-item h3 { font-size: 14px; }
        .small-item p { color: var(--muted); font-size: 12px; margin-top: 3px; }

        .ranking-area { background: var(--mist); }
        .rank-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 36px; border-top: 1px solid var(--line); }
        .rank-item { display: grid; grid-template-columns: 42px 1fr auto auto; gap: 14px; align-items: center; min-height: 65px; border-bottom: 1px solid var(--line); }
        .rank-no { color: #92a3b9; font: 800 20px "Manrope", sans-serif; }
        .rank-item:nth-child(-n+3) .rank-no { color: var(--blue); }
        .rank-name { font-weight: 700; font-size: 14px; }
        .rank-type { color: var(--muted); font-size: 11px; padding: 3px 7px; border: 1px solid var(--line); border-radius: 4px; }
        .heat { color: var(--muted); font-size: 12px; }
        .rank-score { color: #e69527; font-size: 13px; font-weight: 800; }

        .news-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 38px; }
        .news-item { display: grid; grid-template-columns: 118px 1fr; gap: 16px; align-items: center; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
        .news-item img { height: 78px; border-radius: 9px; }
        .news-item time { color: var(--blue); font-size: 11px; font-weight: 700; }
        .news-item h3 { margin-top: 4px; font-size: 15px; line-height: 1.45; }

        .assurance { background: #edf5ff; }
        .assurance-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
        .assurance h2 { font-size: 34px; line-height: 1.25; }
        .assurance-copy { color: var(--muted); margin-top: 15px; font-size: 14px; }
        .assurance-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
        .assurance-item { padding: 20px; background: #fff; border: 1px solid #d8e7f8; border-radius: 12px; }
        .assurance-item strong { display: block; margin-bottom: 5px; font-size: 15px; }
        .assurance-item p { color: var(--muted); font-size: 13px; }

        .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 42px; }
        details { padding: 18px 0; border-bottom: 1px solid var(--line); }
        summary { display: flex; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-weight: 700; font-size: 15px; }
        summary::-webkit-details-marker { display: none; }
        summary::after { content: "+"; color: var(--blue); font-size: 21px; line-height: 1; }
        details[open] summary::after { content: "−"; }
        details p { padding-top: 12px; color: var(--muted); font-size: 13px; }

        .closing { padding: 62px 0; background: var(--blue); color: #fff; }
        .closing-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
        .closing h2 { font-size: 31px; line-height: 1.25; }
        .closing p { max-width: 560px; color: #d8e8fc; margin-top: 9px; font-size: 14px; }
        .closing .btn-light { border: 0; color: var(--blue-dark); white-space: nowrap; }

        footer { padding: 50px 0 22px; background: #0c1e38; color: #dbe7f6; }
        .footer-grid { display: grid; grid-template-columns: 1.35fr repeat(3, 1fr); gap: 38px; padding-bottom: 42px; }
        .footer-brand p { max-width: 280px; color: #8fa6c2; font-size: 13px; margin-top: 15px; }
        footer h3 { color: #fff; font-size: 14px; margin-bottom: 15px; }
        footer ul { list-style: none; display: grid; gap: 8px; }
        footer li, footer a { color: #91a8c3; font-size: 13px; }
        footer a:hover { color: #fff; }
        .copyright { padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #7d96b2; font-size: 12px; }

        :focus-visible { outline: 3px solid rgba(18,100,216,.35); outline-offset: 3px; }
        @media (max-width: 1024px) {
            .hero-grid { gap: 34px; }
            .content-grid { grid-template-columns: repeat(3, 1fr); }
            .matrix { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .container { width: min(var(--container), calc(100% - 32px)); }
            .nav-shell { height: 68px; }
            .menu-toggle { display: block; }
            .nav-links {
                display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 13px 16px 18px;
                background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
                flex-direction: column; align-items: stretch; gap: 0;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 11px 0; }
            .nav-links a::after { display: none; }
            .nav-action { display: none; }
            .hero { min-height: auto; padding: 72px 0 66px; }
            .hero-grid, .popular-layout, .assurance-layout { grid-template-columns: 1fr; }
            .hero-panel { max-width: 520px; }
            .stats { grid-template-columns: repeat(2, 1fr); }
            .stat:nth-child(3) { border-left: 0; }
            .content-grid { grid-template-columns: repeat(2, 1fr); }
            .section-head { display: block; }
            .section-head p { margin-top: 12px; }
            .more-link { display: inline-block; margin-top: 13px; }
            .closing-inner { display: block; }
            .closing .btn { margin-top: 22px; }
            .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            section { padding: 58px 0; }
            .hero h1 { font-size: 40px; }
            .hero-sub { font-size: 17px; }
            .hero-actions .btn { width: 100%; }
            .stats { grid-template-columns: 1fr 1fr; gap: 0; }
            .stat { padding: 9px 12px; }
            .stat strong { font-size: 23px; }
            .content-grid, .matrix, .small-popular, .rank-list, .news-layout, .faq-grid, .assurance-list { grid-template-columns: 1fr; }
            .rank-item { grid-template-columns: 35px 1fr auto; }
            .rank-item .heat { display: none; }
            .news-item { grid-template-columns: 100px 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
            .footer-brand { grid-column: 1 / -1; }
        }