/* roulang page: index */
:root {
            --ink: #171A1C;
            --ink-soft: #252A2D;
            --lime: #B8E44C;
            --lime-dark: #8BAE2B;
            --apricot: #F3A65A;
            --paper: #F5F6F1;
            --white: #FFFFFF;
            --text: #25292B;
            --muted: #707879;
            --line: #E1E5DE;
            --soft-lime: #EEF7D7;
            --soft-orange: #FFF0DE;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow: 0 12px 32px rgba(23, 26, 28, .07);
            --container: 1200px;
            --ease: 180ms ease;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            background: var(--paper);
            color: var(--text);
            font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; max-width: 100%; }
        button, input { font: inherit; }
        button { cursor: pointer; border: 0; }
        :focus-visible {
            outline: 3px solid rgba(184, 228, 76, .8);
            outline-offset: 3px;
        }
        .container { width: min(var(--container), calc(100% - 64px)); margin: 0 auto; }
        .eyebrow {
            color: var(--lime-dark);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .1em;
            text-transform: uppercase;
        }
        .section { padding: 96px 0; }
        .section-head {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 34px;
        }
        .section-head h2 {
            color: var(--ink);
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.25;
            letter-spacing: -.04em;
            margin-top: 8px;
        }
        .section-head p { max-width: 510px; color: var(--muted); }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ink);
            font-weight: 800;
            white-space: nowrap;
            transition: color var(--ease);
        }
        .text-link:hover { color: var(--lime-dark); }
        .text-link span { color: var(--lime-dark); font-size: 20px; }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(23, 26, 28, .97);
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .nav-wrap {
            min-height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            min-width: 225px;
            color: var(--white);
        }
        .brand-mark {
            display: grid;
            place-items: center;
            width: 42px;
            height: 42px;
            color: var(--ink);
            background: var(--lime);
            border-radius: 11px;
            font-size: 17px;
            font-weight: 900;
            letter-spacing: -.08em;
        }
        .brand-copy strong {
            display: block;
            font-size: 17px;
            line-height: 1.2;
            letter-spacing: -.03em;
        }
        .brand-copy small {
            display: block;
            margin-top: 2px;
            color: #AEB6B2;
            font-size: 11px;
            line-height: 1.2;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 4px;
            list-style: none;
        }
        .nav-menu a {
            position: relative;
            display: block;
            padding: 27px 13px 25px;
            color: #C9D0CC;
            font-size: 14px;
            font-weight: 700;
            transition: color var(--ease);
        }
        .nav-menu a::after {
            position: absolute;
            right: 13px;
            bottom: 17px;
            left: 13px;
            height: 3px;
            background: var(--lime);
            border-radius: 4px;
            content: "";
            opacity: 0;
            transform: scaleX(.4);
            transition: opacity var(--ease), transform var(--ease);
        }
        .nav-menu a:hover, .nav-menu a.active { color: var(--white); }
        .nav-menu a.active::after, .nav-menu a:hover::after { opacity: 1; transform: scaleX(1); }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 42px;
            padding: 0 17px;
            color: var(--ink) !important;
            background: var(--lime);
            border-radius: 9px;
            font-size: 13px !important;
            transition: background var(--ease), transform var(--ease);
        }
        .nav-cta::after { display: none; }
        .nav-cta:hover { background: #C9EF68; color: var(--ink) !important; transform: translateY(-2px); }
        .menu-toggle { display: none; padding: 9px; color: var(--white); background: transparent; font-size: 26px; }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 92px 0 82px;
            color: var(--white);
            background: var(--ink);
        }
        .hero::before {
            position: absolute;
            top: -230px;
            right: -120px;
            width: 590px;
            height: 590px;
            border: 1px solid rgba(184,228,76,.2);
            border-radius: 50%;
            box-shadow: 0 0 0 42px rgba(184,228,76,.025), 0 0 0 84px rgba(184,228,76,.025);
            content: "";
        }
        .hero::after {
            position: absolute;
            right: 12%;
            bottom: -230px;
            width: 460px;
            height: 460px;
            border: 1px solid rgba(243,166,90,.15);
            border-radius: 50%;
            content: "";
        }
        .hero-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr);
            align-items: center;
            gap: 70px;
        }
        .hero h1 {
            max-width: 680px;
            margin: 15px 0 22px;
            font-size: clamp(36px, 5vw, 64px);
            line-height: 1.18;
            letter-spacing: -.055em;
        }
        .hero h1 em { color: var(--lime); font-style: normal; }
        .hero-intro { max-width: 610px; color: #B9C1BD; font-size: 17px; line-height: 1.9; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 21px;
            border: 1px solid transparent;
            border-radius: 9px;
            font-size: 14px;
            font-weight: 800;
            transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease);
        }
        .btn:hover { transform: translateY(-2px); box-shadow: 0 9px 18px rgba(0,0,0,.13); }
        .btn-primary { color: var(--ink); background: var(--lime); }
        .btn-primary:hover { background: #C9EF68; }
        .btn-light { color: var(--white); border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.06); }
        .btn-light:hover { border-color: var(--lime); background: rgba(184,228,76,.12); }
        .btn-dark { color: var(--white); background: var(--ink); }
        .hero-note { display: flex; align-items: center; gap: 9px; margin-top: 25px; color: #86918C; font-size: 12px; }
        .hero-note i { width: 7px; height: 7px; background: var(--lime); border-radius: 50%; }

        .match-board {
            position: relative;
            padding: 20px;
            background: #222729;
            border: 1px solid rgba(255,255,255,.13);
            border-radius: var(--radius-lg);
            box-shadow: 0 25px 60px rgba(0,0,0,.2);
        }
        .board-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; color: #9EA9A3; font-size: 12px; }
        .live-dot { display: inline-flex; align-items: center; gap: 7px; color: var(--lime); font-weight: 800; }
        .live-dot::before { width: 7px; height: 7px; background: var(--lime); border-radius: 50%; content: ""; box-shadow: 0 0 0 5px rgba(184,228,76,.11); }
        .feature-match { padding: 25px 18px; background: #2B3133; border-radius: 13px; text-align: center; }
        .league { color: var(--apricot); font-size: 12px; font-weight: 800; }
        .teams { display: flex; align-items: center; justify-content: space-around; gap: 12px; margin: 19px 0; }
        .team { display: grid; gap: 6px; justify-items: center; color: #EAF0EC; font-size: 13px; font-weight: 700; }
        .team-badge { display: grid; place-items: center; width: 48px; height: 48px; color: var(--ink); background: var(--lime); border-radius: 13px; font-size: 18px; font-weight: 900; }
        .team:nth-child(3) .team-badge { background: var(--apricot); }
        .versus { color: #8B9691; font-size: 12px; font-weight: 800; }
        .board-data { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 17px; }
        .data-cell { padding: 10px 6px; color: #96A19C; background: #202526; border-radius: 8px; font-size: 11px; text-align: center; }
        .data-cell strong { display: block; margin-top: 1px; color: var(--white); font-size: 14px; }
        .board-list { display: grid; gap: 9px; margin-top: 14px; }
        .board-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; color: #B7C0BB; background: #202526; border-radius: 8px; font-size: 12px; }
        .board-row b { color: var(--lime); font-size: 13px; }

        .quick-section { padding: 25px 0 0; }
        .quick-grid { display: grid; grid-template-columns: 1.35fr .85fr .85fr; gap: 16px; }
        .quick-card {
            position: relative;
            min-height: 168px;
            padding: 25px;
            overflow: hidden;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }
        .quick-card:hover { border-color: var(--lime); box-shadow: 0 17px 36px rgba(23,26,28,.1); transform: translateY(-4px); }
        .quick-card.primary { color: var(--white); background: var(--ink); }
        .quick-card.primary::after { position: absolute; right: -35px; bottom: -55px; width: 160px; height: 160px; border: 22px solid rgba(184,228,76,.16); border-radius: 50%; content: ""; }
        .quick-icon { display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 17px; color: var(--ink); background: var(--lime); border-radius: 9px; font-weight: 900; }
        .quick-card:nth-child(2) .quick-icon { background: var(--apricot); }
        .quick-card:nth-child(3) .quick-icon { background: var(--soft-lime); }
        .quick-card h3 { font-size: 21px; line-height: 1.3; }
        .quick-card p { max-width: 290px; margin-top: 7px; color: var(--muted); font-size: 13px; line-height: 1.7; }
        .quick-card.primary p { color: #B8C1BC; }
        .quick-arrow { position: absolute; right: 24px; bottom: 21px; color: var(--lime-dark); font-size: 22px; }

        .schedule-wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr); gap: 20px; }
        .schedule-panel, .spotlight {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
        }
        .schedule-panel { padding: 23px; }
        .panel-label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; color: var(--ink); font-weight: 800; }
        .panel-label small { color: var(--muted); font-size: 12px; font-weight: 500; }
        .schedule-row {
            display: grid;
            grid-template-columns: 76px 1fr 82px;
            align-items: center;
            gap: 17px;
            padding: 16px 0;
            border-bottom: 1px solid var(--line);
        }
        .schedule-row:last-child { border-bottom: 0; }
        .schedule-time { color: var(--muted); font-size: 12px; }
        .schedule-time b { display: block; color: var(--ink); font-size: 15px; }
        .match-name { display: flex; align-items: center; gap: 10px; color: var(--ink); font-size: 14px; font-weight: 800; }
        .mini-mark { width: 8px; height: 28px; background: var(--lime); border-radius: 5px; }
        .match-name small { display: block; color: var(--muted); font-size: 11px; font-weight: 500; }
        .status { justify-self: end; padding: 3px 8px; border-radius: 6px; color: #597112; background: var(--soft-lime); font-size: 11px; font-weight: 800; }
        .status.orange { color: #9A5C18; background: var(--soft-orange); }
        .spotlight { position: relative; min-height: 100%; padding: 28px; overflow: hidden; color: var(--white); background: var(--ink-soft); }
        .spotlight::before { position: absolute; right: -70px; bottom: -80px; width: 250px; height: 250px; border: 1px solid rgba(184,228,76,.32); border-radius: 50%; content: ""; }
        .spotlight .eyebrow { color: var(--apricot); }
        .spotlight h3 { max-width: 300px; margin: 12px 0 15px; font-size: 28px; line-height: 1.35; }
        .spotlight p { position: relative; z-index: 1; color: #B9C2BD; font-size: 14px; }
        .spotlight .btn { position: relative; z-index: 1; margin-top: 28px; }

        .updates { background: #ECEFE9; }
        .updates-layout { display: grid; grid-template-columns: 5fr 7fr; gap: 20px; }
        .feature-news, .news-list { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-md); }
        .feature-news { overflow: hidden; }
        .news-visual { position: relative; display: flex; align-items: end; min-height: 230px; padding: 24px; overflow: hidden; color: var(--white); background: var(--ink); }
        .news-visual::before { position: absolute; top: 30px; right: -18px; width: 210px; height: 210px; border: 27px solid rgba(184,228,76,.18); border-radius: 50%; content: ""; }
        .news-visual::after { position: absolute; right: 45px; bottom: 45px; width: 86px; height: 4px; background: var(--apricot); content: ""; transform: rotate(-28deg); }
        .news-visual-content { position: relative; z-index: 1; }
        .news-visual h3 { max-width: 360px; margin-top: 10px; font-size: 23px; line-height: 1.45; }
        .feature-news-body { padding: 21px 24px 24px; }
        .feature-news-body p { color: var(--muted); font-size: 14px; }
        .news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 5px; color: var(--muted); font-size: 12px; }
        .tag { display: inline-flex; padding: 3px 8px; color: #597112; background: var(--soft-lime); border-radius: 5px; font-size: 11px; font-weight: 800; }
        .tag.orange { color: #9A5C18; background: var(--soft-orange); }
        .news-list { padding: 9px 23px; }
        .news-item { display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center; padding: 17px 0; border-bottom: 1px solid var(--line); }
        .news-item:last-child { border-bottom: 0; }
        .news-item h3 { color: var(--ink); font-size: 15px; line-height: 1.5; transition: color var(--ease); }
        .news-item a:hover h3 { color: var(--lime-dark); }
        .news-item p { overflow: hidden; color: var(--muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
        .news-date { color: #919994; font-size: 11px; white-space: nowrap; }

        .app-section { padding-bottom: 96px; }
        .app-box { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 70px; padding: 55px 70px; overflow: hidden; color: var(--white); background: var(--ink); border-radius: var(--radius-lg); }
        .app-preview { position: relative; min-height: 300px; }
        .app-phone { position: absolute; left: 18%; bottom: -74px; width: 190px; height: 365px; padding: 14px 10px; background: #303739; border: 5px solid #485152; border-radius: 28px; box-shadow: 17px 22px 30px rgba(0,0,0,.25); transform: rotate(-8deg); }
        .phone-screen { height: 100%; padding: 14px 10px; overflow: hidden; background: #F5F6F1; border-radius: 17px; color: var(--ink); }
        .phone-header { display: flex; align-items: center; justify-content: space-between; font-size: 10px; font-weight: 900; }
        .phone-header b { color: #6E9518; font-size: 14px; }
        .phone-score { margin-top: 18px; padding: 14px 8px; background: var(--ink); border-radius: 10px; color: var(--white); text-align: center; }
        .phone-score small { color: var(--lime); font-size: 8px; }
        .phone-score strong { display: block; margin-top: 6px; font-size: 18px; }
        .phone-line { height: 8px; margin-top: 13px; background: #DDE2D8; border-radius: 4px; }
        .phone-line.short { width: 65%; background: #C8DD92; }
        .app-tile { position: absolute; right: 4%; top: 16px; width: 170px; padding: 21px; background: var(--apricot); border-radius: 15px; color: var(--ink); transform: rotate(7deg); }
        .app-tile strong { display: block; font-size: 27px; line-height: 1.1; }
        .app-tile span { display: block; margin-top: 8px; font-size: 12px; font-weight: 700; }
        .app-box h2 { margin: 10px 0 15px; font-size: clamp(29px, 4vw, 43px); line-height: 1.28; letter-spacing: -.04em; }
        .app-box p { color: #BDC6C0; }
        .app-points { display: grid; grid-template-columns: 1fr 1fr; gap: 11px 25px; margin: 24px 0; list-style: none; color: #DCE3DE; font-size: 13px; }
        .app-points li::before { display: inline-block; width: 17px; margin-right: 7px; color: var(--lime); content: "✓"; font-weight: 900; }
        .app-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; }
        .qr-note { color: #98A39D; font-size: 11px; }

        .guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 45px; align-items: start; }
        .guide-copy p { max-width: 520px; margin-top: 15px; color: var(--muted); }
        .steps { display: grid; gap: 0; margin-top: 28px; }
        .step { position: relative; display: grid; grid-template-columns: 45px 1fr; gap: 17px; padding-bottom: 27px; }
        .step:not(:last-child)::after { position: absolute; top: 39px; bottom: 0; left: 20px; width: 1px; background: var(--line); content: ""; }
        .step-number { position: relative; z-index: 1; display: grid; place-items: center; width: 41px; height: 41px; color: var(--ink); background: var(--lime); border-radius: 12px; font-weight: 900; }
        .step h3 { color: var(--ink); font-size: 17px; line-height: 1.4; }
        .step p { margin-top: 3px; color: var(--muted); font-size: 13px; line-height: 1.7; }
        .notice { padding: 25px; background: var(--soft-orange); border: 1px solid #F6D4A9; border-radius: var(--radius-md); }
        .notice h3 { color: #7D4B18; font-size: 19px; }
        .notice p { margin-top: 9px; color: #805F3D; font-size: 13px; line-height: 1.8; }

        .faq-section { background: #ECEFE9; }
        .faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: start; }
        .faq-intro p { margin-top: 16px; color: var(--muted); }
        .faq-list { border-top: 1px solid var(--line); }
        .faq-item { border-bottom: 1px solid var(--line); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; gap: 20px; width: 100%; min-height: 64px; color: var(--ink); background: transparent; font-size: 15px; font-weight: 800; text-align: left; }
        .faq-question span { display: grid; place-items: center; width: 27px; height: 27px; color: var(--ink); background: var(--white); border-radius: 7px; font-size: 20px; font-weight: 400; transition: transform var(--ease), background var(--ease); }
        .faq-answer { max-width: 700px; height: 0; overflow: hidden; color: var(--muted); font-size: 13px; line-height: 1.85; transition: height 220ms ease; }
        .faq-item.open .faq-answer { height: auto; padding: 0 48px 20px 0; }
        .faq-item.open .faq-question span { background: var(--lime); transform: rotate(45deg); }

        .closing { padding: 70px 0; color: var(--white); background: var(--ink); }
        .closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
        .closing h2 { margin-top: 8px; font-size: clamp(27px, 4vw, 40px); line-height: 1.3; letter-spacing: -.04em; }
        .closing p { max-width: 590px; margin-top: 10px; color: #AEB8B2; font-size: 14px; }
        .closing-actions { display: flex; flex-wrap: wrap; gap: 11px; }

        .site-footer { padding: 55px 0 25px; color: #AEB7B2; background: #111415; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 45px; }
        .footer-brand { margin-bottom: 15px; }
        .footer-brand .brand-copy strong { color: var(--white); }
        .footer-description { max-width: 300px; color: #7F8984; font-size: 13px; line-height: 1.8; }
        .footer-title { margin-bottom: 15px; color: var(--white); font-size: 14px; }
        .footer-links { display: grid; gap: 8px; list-style: none; font-size: 13px; }
        .footer-links a { transition: color var(--ease); }
        .footer-links a:hover { color: var(--lime); }
        .footer-risk { padding: 16px; color: #9CA6A0; background: #1B1F20; border: 1px solid #2A302F; border-radius: 10px; font-size: 12px; line-height: 1.7; }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid #292E2D; color: #707A75; font-size: 11px; }
        .footer-bottom a:hover { color: var(--lime); }

        @media (max-width: 1060px) {
            .nav-menu a { padding-right: 8px; padding-left: 8px; font-size: 13px; }
            .nav-menu a::after { right: 8px; left: 8px; }
            .brand { min-width: 205px; }
            .hero-grid { gap: 40px; }
            .app-box { padding-right: 45px; padding-left: 45px; gap: 35px; }
        }
        @media (max-width: 820px) {
            .container { width: min(100% - 40px, var(--container)); }
            .menu-toggle { display: block; }
            .nav-menu {
                position: absolute;
                top: 78px;
                right: 20px;
                left: 20px;
                display: none;
                padding: 10px;
                background: #202526;
                border: 1px solid rgba(255,255,255,.12);
                border-radius: 12px;
                box-shadow: 0 20px 35px rgba(0,0,0,.25);
            }
            .nav-menu.open { display: block; }
            .nav-menu li { border-bottom: 1px solid rgba(255,255,255,.08); }
            .nav-menu li:last-child { border: 0; }
            .nav-menu a { padding: 13px 15px; }
            .nav-menu a::after { right: 15px; bottom: 9px; left: auto; width: 4px; height: 25px; }
            .nav-cta { margin: 7px 0; width: 100%; }
            .hero { padding: 70px 0 60px; }
            .hero-grid, .schedule-wrap, .app-box, .guide-grid, .faq-grid { grid-template-columns: 1fr; }
            .hero-visual { max-width: 610px; margin: 8px auto 0; width: 100%; }
            .quick-grid { grid-template-columns: 1fr 1fr; }
            .quick-card.primary { grid-column: span 2; }
            .updates-layout { grid-template-columns: 1fr; }
            .app-box { padding: 45px 35px; }
            .app-preview { min-height: 280px; max-width: 420px; margin: 0 auto; width: 100%; }
            .faq-grid { gap: 32px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .closing-inner { display: block; }
            .closing-actions { margin-top: 25px; }
        }
        @media (max-width: 520px) {
            .container { width: calc(100% - 32px); }
            .section { padding: 65px 0; }
            .section-head { display: block; margin-bottom: 25px; }
            .section-head p { margin-top: 13px; }
            .section-head .text-link { margin-top: 13px; }
            .brand { min-width: 0; }
            .brand-copy strong { font-size: 14px; }
            .brand-copy small { font-size: 10px; }
            .brand-mark { width: 37px; height: 37px; font-size: 15px; }
            .hero h1 { font-size: 36px; }
            .hero-intro { font-size: 15px; }
            .hero-actions .btn { width: 100%; }
            .quick-grid { grid-template-columns: 1fr; }
            .quick-card.primary { grid-column: auto; }
            .schedule-panel { padding: 17px; }
            .schedule-row { grid-template-columns: 60px 1fr; gap: 10px; }
            .schedule-row .status { grid-column: 2; justify-self: start; margin-top: -7px; }
            .news-item { grid-template-columns: 1fr; gap: 5px; }
            .news-date { justify-self: start; }
            .app-box { padding: 28px 20px; }
            .app-preview { min-height: 245px; transform: scale(.88); transform-origin: center top; margin-bottom: -30px; }
            .app-points { grid-template-columns: 1fr; }
            .app-actions .btn { width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { display: block; }
            .footer-bottom span { display: block; margin-top: 7px; }
        }

/* roulang page: article */
:root{
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#fff;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--text);
            background:var(--paper);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{
            position:sticky;
            top:0;
            z-index:50;
            background:rgba(23,26,28,.97);
            border-bottom:1px solid rgba(255,255,255,.08)
        }
        .nav-wrap{
            min-height:78px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:24px
        }
        .brand{
            display:inline-flex;
            align-items:center;
            gap:11px;
            min-width:225px;
            color:var(--white)
        }
        .brand-mark{
            display:grid;
            place-items:center;
            width:42px;
            height:42px;
            color:var(--ink);
            background:var(--lime);
            border-radius:11px;
            font-size:17px;
            font-weight:900;
            letter-spacing:-.08em
        }
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{
            display:flex;
            align-items:center;
            justify-content:flex-end;
            gap:4px;
            margin:0;
            padding:0;
            list-style:none
        }
        .nav-menu a{
            position:relative;
            display:block;
            padding:27px 13px 25px;
            color:#C9D0CC;
            font-size:14px;
            font-weight:700;
            transition:color var(--ease)
        }
        .nav-menu a::after{
            position:absolute;
            right:13px;
            bottom:17px;
            left:13px;
            height:3px;
            background:var(--lime);
            border-radius:4px;
            content:"";
            opacity:0;
            transform:scaleX(.4);
            transition:opacity var(--ease),transform var(--ease)
        }
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active::after,.nav-menu a:hover::after{opacity:1;transform:scaleX(1)}
        .nav-menu .nav-cta{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            min-height:42px;
            padding:0 17px;
            color:var(--ink)!important;
            background:var(--lime);
            border-radius:9px;
            font-size:13px!important;
            transition:background var(--ease),transform var(--ease)
        }
        .nav-menu .nav-cta::after{display:none}
        .nav-menu .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{
            display:none;
            padding:9px;
            color:var(--white);
            background:transparent;
            font-size:26px
        }
        .article-hero{
            position:relative;
            overflow:hidden;
            padding:76px 0 70px;
            color:var(--white);
            background:var(--ink)
        }
        .article-hero::after{
            position:absolute;
            right:-100px;
            bottom:-220px;
            width:520px;
            height:520px;
            border:1px solid rgba(184,228,76,.2);
            border-radius:50%;
            box-shadow:0 0 0 42px rgba(184,228,76,.03),0 0 0 84px rgba(184,228,76,.025);
            content:""
        }
        .hero-inner{position:relative;z-index:1;max-width:920px}
        .eyebrow{
            color:var(--lime);
            font-size:13px;
            font-weight:800;
            letter-spacing:.1em
        }
        .breadcrumb-line{
            display:flex;
            flex-wrap:wrap;
            gap:9px;
            margin:16px 0 22px;
            color:#AEB6B2;
            font-size:14px
        }
        .breadcrumb-line a:hover{color:var(--lime)}
        .article-hero h1{
            max-width:900px;
            margin:0 0 22px;
            color:var(--white);
            font-size:clamp(34px,5vw,62px);
            line-height:1.25;
            letter-spacing:-.05em
        }
        .article-summary{max-width:780px;margin:0;color:#C9D0CC;font-size:18px;line-height:1.8}
        .article-meta{
            display:flex;
            flex-wrap:wrap;
            gap:10px 24px;
            margin-top:28px;
            color:#AEB6B2;
            font-size:14px
        }
        .meta-badge{
            display:inline-flex;
            align-items:center;
            padding:3px 10px;
            color:var(--ink);
            background:var(--lime);
            border-radius:6px;
            font-size:12px;
            font-weight:800
        }
        .article-layout{
            display:grid;
            grid-template-columns:minmax(0,820px) 300px;
            align-items:start;
            gap:48px;
            padding:78px 0 96px
        }
        .article-content{
            min-width:0;
            padding:clamp(25px,4vw,50px);
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius-lg);
            box-shadow:var(--shadow)
        }
        .article-content h2{
            margin:38px 0 15px;
            color:var(--ink);
            font-size:30px;
            line-height:1.35
        }
        .article-content h3{
            margin:28px 0 12px;
            color:var(--ink);
            font-size:22px;
            line-height:1.4
        }
        .article-content h2:first-child,.article-content h3:first-child{margin-top:0}
        .article-content p{margin:0 0 20px;color:#40484A}
        .article-content ul,.article-content ol{margin:0 0 24px;padding-left:25px;color:#40484A}
        .article-content li{margin:7px 0}
        .article-content blockquote{
            margin:28px 0;
            padding:18px 22px;
            color:#4D5A47;
            background:var(--soft-lime);
            border-left:4px solid var(--lime-dark);
            border-radius:0 var(--radius-sm) var(--radius-sm) 0
        }
        .article-content table{
            width:100%;
            margin:25px 0;
            border-collapse:collapse;
            overflow:hidden;
            border:1px solid var(--line)
        }
        .article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
        .article-content th{color:var(--ink);background:var(--soft-lime);font-weight:800}
        .article-content img{width:100%;margin:25px 0;border-radius:var(--radius-md)}
        .article-aside{position:sticky;top:104px}
        .aside-card{
            margin-bottom:18px;
            padding:24px;
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius-md);
            box-shadow:var(--shadow)
        }
        .aside-card h2{margin:0 0 14px;color:var(--ink);font-size:19px;line-height:1.4}
        .aside-card p{margin:0 0 17px;color:var(--muted);font-size:14px;line-height:1.7}
        .aside-links{margin:0;padding:0;list-style:none}
        .aside-links li+li{border-top:1px solid var(--line)}
        .aside-links a{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:10px;
            padding:12px 0;
            color:var(--ink);
            font-size:14px;
            font-weight:700;
            transition:color var(--ease),padding var(--ease)
        }
        .aside-links a:hover{padding-left:4px;color:var(--lime-dark)}
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            min-height:45px;
            padding:0 18px;
            border-radius:9px;
            font-size:14px;
            font-weight:800;
            transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease)
        }
        .btn-primary{color:var(--ink);background:var(--lime)}
        .btn-primary:hover{color:var(--ink);background:#C9EF68;transform:translateY(-2px);box-shadow:0 8px 18px rgba(184,228,76,.22)}
        .btn-secondary{color:var(--ink);background:transparent;border:1px solid var(--line)}
        .btn-secondary:hover{background:var(--soft-lime);border-color:var(--lime-dark)}
        .empty-state{
            padding:70px 24px;
            text-align:center;
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius-lg);
            box-shadow:var(--shadow)
        }
        .empty-icon{
            display:grid;
            place-items:center;
            width:58px;
            height:58px;
            margin:0 auto 18px;
            color:var(--ink);
            background:var(--soft-lime);
            border-radius:50%;
            font-size:24px;
            font-weight:900
        }
        .empty-state h2{margin:0 0 9px;color:var(--ink);font-size:27px}
        .empty-state p{margin:0 0 22px;color:var(--muted)}
        .related-section{padding:0 0 96px}
        .related-box{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:25px;
            padding:30px 34px;
            background:var(--soft-orange);
            border:1px solid #F5D5AF;
            border-radius:var(--radius-lg)
        }
        .related-box h2{margin:0 0 5px;color:var(--ink);font-size:24px}
        .related-box p{margin:0;color:#6E6257}
        .site-footer{padding:62px 0 24px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{
            display:grid;
            grid-template-columns:1.5fr .8fr .8fr 1fr;
            gap:42px;
            padding-bottom:42px;
            border-bottom:1px solid rgba(255,255,255,.12)
        }
        .footer-brand{min-width:0}
        .footer-description{max-width:310px;margin:20px 0 0;color:#AEB6B2;font-size:14px;line-height:1.8}
        .footer-title{margin:4px 0 16px;color:var(--white);font-size:15px}
        .footer-links{margin:0;padding:0;list-style:none}
        .footer-links li{margin:8px 0}
        .footer-links a{color:#AEB6B2;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{
            padding:14px;
            color:#AEB6B2;
            background:rgba(255,255,255,.06);
            border:1px solid rgba(255,255,255,.1);
            border-radius:var(--radius-sm);
            font-size:13px;
            line-height:1.7
        }
        .footer-bottom{
            display:flex;
            justify-content:space-between;
            gap:20px;
            padding-top:22px;
            color:#89928E;
            font-size:12px
        }
        .footer-bottom a:hover{color:var(--lime)}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media(max-width:1024px){
            .container{width:min(var(--container),calc(100% - 48px))}
            .nav-menu a{padding-right:8px;padding-left:8px}
            .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:28px}
            .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
            .footer-grid>div:last-child{grid-column:span 3}
        }
        @media(max-width:768px){
            .container{width:calc(100% - 32px)}
            .nav-wrap{min-height:68px}
            .menu-toggle{display:block}
            .nav-menu{
                position:absolute;
                top:68px;
                right:16px;
                left:16px;
                display:none;
                align-items:stretch;
                flex-direction:column;
                padding:10px;
                background:var(--ink-soft);
                border:1px solid rgba(255,255,255,.1);
                border-radius:0 0 var(--radius-md) var(--radius-md);
                box-shadow:0 18px 30px rgba(0,0,0,.2)
            }
            .nav-menu.is-open{display:flex}
            .nav-menu a{padding:13px 14px;border-radius:7px}
            .nav-menu a::after{display:none}
            .nav-menu a:hover,.nav-menu a.active{background:rgba(184,228,76,.12)}
            .nav-menu .nav-cta{margin-top:5px;min-height:45px}
            .article-hero{padding:58px 0 52px}
            .article-hero h1{font-size:clamp(32px,9vw,47px)}
            .article-summary{font-size:16px}
            .article-layout{display:block;padding:48px 0 64px}
            .article-aside{position:static;margin-top:24px}
            .related-section{padding-bottom:64px}
            .related-box{display:block;padding:25px}
            .related-box .btn{margin-top:19px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:last-child{grid-column:span 2}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            .brand{min-width:0}
            .brand-copy strong{font-size:14px}
            .brand-copy small{font-size:10px}
            .article-content{padding:22px 18px}
            .article-content h2{font-size:25px}
            .article-content h3{font-size:20px}
            .article-meta{display:block}
            .article-meta span{display:inline-block;margin:4px 12px 4px 0}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div:last-child{grid-column:auto}
        }

/* roulang page: category1 */
:root{
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#fff;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(23,26,28,.97);border-bottom:1px solid rgba(255,255,255,.08)}
        .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{display:grid;place-items:center;width:42px;height:42px;color:var(--ink);background:var(--lime);border-radius:11px;font-size:17px;font-weight:900;letter-spacing:-.08em}
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{display:flex;align-items:center;justify-content:flex-end;gap:4px;list-style:none;margin:0;padding:0}
        .nav-menu a{position:relative;display:block;padding:27px 13px 25px;color:#C9D0CC;font-size:14px;font-weight:700;transition:color var(--ease)}
        .nav-menu a::after{position:absolute;right:13px;bottom:17px;left:13px;height:3px;background:var(--lime);border-radius:4px;content:"";opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease)}
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active::after,.nav-menu a:hover::after{opacity:1;transform:scaleX(1)}
        .nav-cta{display:inline-flex!important;align-items:center;justify-content:center;min-height:42px;padding:0 17px!important;color:var(--ink)!important;background:var(--lime);border-radius:9px;font-size:13px!important;transition:background var(--ease),transform var(--ease)}
        .nav-cta::after{display:none}
        .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:var(--white);background:transparent;font-size:26px}
        .page-hero{position:relative;overflow:hidden;padding:78px 0 76px;color:var(--white);background:var(--ink)}
        .page-hero:before{position:absolute;right:-120px;top:-260px;width:610px;height:610px;border:1px solid rgba(184,228,76,.2);border-radius:50%;box-shadow:0 0 0 40px rgba(184,228,76,.025),0 0 0 80px rgba(184,228,76,.025);content:""}
        .hero-content{position:relative;z-index:1;max-width:780px}
        .eyebrow{color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.1em}
        .page-hero h1{margin:14px 0 20px;font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-.055em}
        .page-hero h1 em{color:var(--lime);font-style:normal}
        .hero-text{max-width:700px;color:#C7CFCA;font-size:18px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:800;transition:transform var(--ease),box-shadow var(--ease),background var(--ease)}
        .btn-primary{color:var(--ink);background:var(--lime)}
        .btn-primary:hover{background:#C9EF68;transform:translateY(-2px);box-shadow:0 8px 18px rgba(184,228,76,.2)}
        .btn-secondary{color:var(--white);border:1px solid rgba(255,255,255,.28);background:transparent}
        .btn-secondary:hover{color:var(--ink);border-color:var(--lime);background:var(--lime)}
        .section{padding:88px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
        .section-head h2{margin:7px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.04em}
        .section-head p{max-width:530px;margin:0;color:var(--muted)}
        .eyebrow-dark{color:var(--lime-dark);font-size:13px;font-weight:800;letter-spacing:.1em}
        .step-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:stretch}
        .step-panel,.notice-panel,.faq-item,.app-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow)}
        .step-panel{padding:30px}
        .step{display:grid;grid-template-columns:48px 1fr;gap:17px;padding:20px 0;border-bottom:1px solid var(--line)}
        .step:first-child{padding-top:0}
        .step:last-child{padding-bottom:0;border-bottom:0}
        .step-number{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--soft-lime);color:var(--lime-dark);font-weight:900}
        .step h3{margin:0 0 5px;color:var(--ink);font-size:19px}
        .step p{margin:0;color:var(--muted);font-size:14px}
        .notice-panel{padding:30px;background:var(--ink);color:var(--white)}
        .notice-panel h3{margin:0 0 15px;font-size:25px}
        .notice-panel p{color:#CBD2CE}
        .notice-list{margin:22px 0 0;padding:0;list-style:none}
        .notice-list li{position:relative;padding:12px 0 12px 26px;border-top:1px solid rgba(255,255,255,.12);color:#E1E6E2}
        .notice-list li:before{position:absolute;left:0;top:19px;width:9px;height:9px;border-radius:50%;background:var(--apricot);content:""}
        .split-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px}
        .info-card{padding:30px;border-radius:var(--radius-md);background:var(--soft-orange);border:1px solid #F4D1A7}
        .info-card h3{margin:0 0 12px;color:var(--ink);font-size:24px}
        .info-card p{margin:0;color:#5B5147}
        .rule-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
        .rule-item{padding:22px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);transition:transform var(--ease),box-shadow var(--ease)}
        .rule-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
        .rule-item strong{display:block;margin-bottom:5px;color:var(--ink);font-size:17px}
        .rule-item span{display:block;color:var(--muted);font-size:14px}
        .app-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center;padding:34px;background:var(--ink)}
        .app-visual{min-height:220px;display:flex;align-items:end;justify-content:center;border-radius:15px;background:linear-gradient(145deg,#303638,#1B2022);overflow:hidden}
        .phone{width:142px;height:190px;padding:14px 10px;border:5px solid #D9E1D9;border-bottom:0;border-radius:24px 24px 0 0;background:#fff;box-shadow:0 0 0 8px rgba(184,228,76,.12)}
        .phone-top{height:10px;width:55px;margin:0 auto 15px;border-radius:5px;background:#DCE3D9}
        .phone-line{height:12px;margin:10px 0;border-radius:4px;background:#E9EEE8}
        .phone-line.lime{width:72%;background:var(--lime)}
        .app-panel h2{margin:0 0 12px;color:var(--white);font-size:30px;line-height:1.3}
        .app-panel p{color:#C7CFCA}
        .app-points{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 24px}
        .app-points span{padding:6px 10px;border-radius:8px;color:#DDE5DE;background:rgba(255,255,255,.09);font-size:13px}
        .faq-list{display:grid;gap:10px;max-width:900px}
        .faq-item{overflow:hidden}
        .faq-item summary{display:flex;align-items:center;justify-content:space-between;min-height:58px;padding:0 22px;color:var(--ink);font-weight:800;cursor:pointer;list-style:none}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--lime-dark);font-size:24px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:var(--white)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
        .cta h2{margin:0 0 8px;font-size:clamp(26px,4vw,38px);line-height:1.3}
        .cta p{margin:0;color:#C7CFCA}
        .site-footer{padding:64px 0 24px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand{min-width:0}
        .footer-description{max-width:310px;margin:18px 0 0;color:#AEB6B2;font-size:14px}
        .footer-title{margin:3px 0 14px;color:var(--white);font-size:15px}
        .footer-links{margin:0;padding:0;list-style:none}
        .footer-links li{margin:8px 0}
        .footer-links a{color:#AEB6B2;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{padding:15px;border:1px solid rgba(243,166,90,.28);border-radius:var(--radius-sm);color:#D7C2AA;background:rgba(243,166,90,.08);font-size:13px}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#8F9994;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        :focus-visible{outline:3px solid var(--apricot);outline-offset:3px}
        @media(max-width:1024px){
            .container{width:min(var(--container),calc(100% - 48px))}
            .nav-menu a{padding-left:8px;padding-right:8px;font-size:13px}
            .nav-menu a:after{right:8px;left:8px}
            .brand{min-width:210px}
            .step-layout,.split-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:calc(100% - 32px)}
            .nav-wrap{min-height:68px}
            .menu-toggle{display:block}
            .nav-menu{display:none;position:absolute;top:68px;right:0;left:0;padding:10px 16px 18px;align-items:stretch;flex-direction:column;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
            .nav-menu.open{display:flex}
            .nav-menu a{padding:13px 10px}
            .nav-menu a:after{right:10px;bottom:5px;left:10px}
            .nav-cta{margin-top:6px}
            .page-hero{padding:62px 0}
            .page-hero h1{font-size:clamp(34px,10vw,52px)}
            .hero-text{font-size:16px}
            .section{padding:64px 0}
            .section-head{display:block}
            .section-head p{margin-top:12px}
            .app-panel{grid-template-columns:1fr;padding:24px}
            .app-visual{min-height:190px}
            .cta-inner{display:block}
            .cta .btn{margin-top:22px}
        }
        @media(max-width:520px){
            .rule-list{grid-template-columns:1fr}
            .step-panel,.notice-panel,.info-card{padding:22px}
            .footer-grid{grid-template-columns:1fr;gap:25px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
            .hero-actions .btn{width:100%}
        }

/* roulang page: category3 */
:root {
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#FFFFFF;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--paper);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .eyebrow{color:var(--lime-dark);font-size:13px;font-weight:800;letter-spacing:.1em}
        .section{padding:92px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
        .section-head h2{margin:8px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.04em}
        .section-head p{max-width:510px;margin:0;color:var(--muted)}
        .text-link{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-weight:800;white-space:nowrap;transition:color var(--ease)}
        .text-link:hover{color:var(--lime-dark)}
        .text-link span{color:var(--lime-dark);font-size:20px}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(23,26,28,.97);border-bottom:1px solid rgba(255,255,255,.08)}
        .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{display:grid;place-items:center;width:42px;height:42px;color:var(--ink);background:var(--lime);border-radius:11px;font-size:17px;font-weight:900;letter-spacing:-.08em}
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin:0;padding:0;list-style:none}
        .nav-menu a{position:relative;display:block;padding:27px 13px 25px;color:#C9D0CC;font-size:14px;font-weight:700;transition:color var(--ease)}
        .nav-menu a:after{position:absolute;right:13px;bottom:17px;left:13px;height:3px;background:var(--lime);border-radius:4px;content:"";opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease)}
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active:after,.nav-menu a:hover:after{opacity:1;transform:scaleX(1)}
        .nav-menu .nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 17px;color:var(--ink)!important;background:var(--lime);border-radius:9px;font-size:13px!important}
        .nav-menu .nav-cta:after{display:none}
        .nav-menu .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:var(--white);background:transparent;font-size:26px}
        .page-hero{position:relative;overflow:hidden;padding:70px 0 66px;background:var(--ink);color:var(--white)}
        .page-hero:before{position:absolute;right:-110px;top:-220px;width:570px;height:570px;border:1px solid rgba(184,228,76,.2);border-radius:50%;box-shadow:0 0 0 42px rgba(184,228,76,.025),0 0 0 84px rgba(184,228,76,.025);content:""}
        .page-hero:after{position:absolute;left:38%;bottom:-280px;width:500px;height:500px;border:1px solid rgba(243,166,90,.16);border-radius:50%;content:""}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr .9fr;align-items:center;gap:70px}
        .breadcrumb{display:flex;gap:10px;margin-bottom:20px;color:#9DA8A3;font-size:13px}
        .breadcrumb a:hover{color:var(--lime)}
        .page-hero h1{max-width:700px;margin:0 0 18px;font-size:clamp(36px,5vw,62px);line-height:1.18;letter-spacing:-.055em}
        .page-hero h1 em{color:var(--lime);font-style:normal}
        .page-hero p{max-width:630px;margin:0;color:#C5CCC8;font-size:18px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:9px;font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease)}
        .btn-primary{background:var(--lime);color:var(--ink)}
        .btn-primary:hover{background:#C9EF68;color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 18px rgba(184,228,76,.18)}
        .btn-light{border:1px solid rgba(255,255,255,.28);color:var(--white);background:transparent}
        .btn-light:hover{border-color:var(--lime);background:rgba(184,228,76,.1);color:var(--lime)}
        .btn:focus-visible,.nav-menu a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(184,228,76,.65);outline-offset:3px}
        .app-preview{position:relative;display:flex;align-items:center;justify-content:center;min-height:285px}
        .device{position:relative;width:202px;padding:12px;border:7px solid #343B3D;border-radius:28px;background:#0F1213;box-shadow:0 20px 40px rgba(0,0,0,.28);transform:rotate(5deg)}
        .device-screen{min-height:335px;padding:17px 13px;border-radius:17px;background:#F5F6F1;color:var(--ink)}
        .device-top{display:flex;justify-content:space-between;margin-bottom:18px;font-size:10px;font-weight:800}
        .screen-title{margin-bottom:12px;font-size:17px;font-weight:900}
        .screen-line{height:7px;margin:9px 0;border-radius:5px;background:#DDE3DA}
        .screen-line.short{width:58%}
        .match-mini{margin-top:15px;padding:11px;border-radius:10px;background:var(--white);box-shadow:0 5px 14px rgba(23,26,28,.07);font-size:10px}
        .match-mini strong{display:block;margin-bottom:5px;font-size:12px}
        .score-row{display:flex;justify-content:space-between;align-items:center}
        .score{color:var(--lime-dark);font-size:18px;font-weight:900}
        .floating-note{position:absolute;right:4%;bottom:15px;padding:13px 16px;border-radius:12px;background:var(--apricot);color:var(--ink);font-size:13px;font-weight:800;box-shadow:var(--shadow)}
        .feature-band{padding:26px 0;background:var(--white);border-bottom:1px solid var(--line)}
        .feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .feature-item{display:flex;align-items:center;gap:13px;padding:9px 12px}
        .feature-icon{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:10px;background:var(--soft-lime);color:var(--lime-dark);font-weight:900}
        .feature-item:nth-child(2) .feature-icon{background:var(--soft-orange);color:#B86A22}
        .feature-item strong{display:block;color:var(--ink);font-size:15px}
        .feature-item span{display:block;color:var(--muted);font-size:13px}
        .download-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}
        .download-art{min-height:390px;display:grid;place-items:center;border-radius:var(--radius-lg);background:#E9EEDF;overflow:hidden}
        .art-board{width:min(78%,355px);padding:25px;border:1px solid #D4DAC9;border-radius:18px;background:var(--white);box-shadow:var(--shadow);transform:rotate(-4deg)}
        .art-board h3{margin:0 0 20px;color:var(--ink);font-size:23px}
        .art-tabs{display:flex;gap:8px;margin-bottom:18px}
        .art-tabs span{padding:5px 10px;border-radius:6px;background:var(--soft-lime);color:var(--lime-dark);font-size:11px;font-weight:800}
        .art-tabs span:last-child{background:#F1F2EE;color:var(--muted)}
        .art-card{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}
        .art-card b{display:block;font-size:14px}
        .art-score{color:var(--lime-dark);font-weight:900}
        .download-copy h2{margin:9px 0 17px;color:var(--ink);font-size:clamp(29px,4vw,43px);line-height:1.25;letter-spacing:-.04em}
        .download-copy>p{margin:0 0 23px;color:var(--muted)}
        .download-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 28px;padding:0;list-style:none}
        .download-points li{position:relative;padding-left:22px;color:var(--text);font-weight:700}
        .download-points li:before{position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:50%;background:var(--lime);content:""}
        .download-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
        .qr-box{display:grid;place-items:center;width:92px;height:92px;border:7px solid var(--white);outline:1px solid var(--line);background:repeating-linear-gradient(45deg,#252A2D 0 4px,#fff 4px 8px);color:var(--white);font-size:9px;text-align:center}
        .compatibility{margin-top:22px;padding:14px 17px;border-left:4px solid var(--apricot);background:var(--soft-orange);color:#6A5137;font-size:14px}
        .steps-section{background:var(--white)}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
        .step{position:relative;padding:30px 30px 12px 0;border-bottom:1px solid var(--line)}
        .step:not(:last-child){margin-right:30px}
        .step-num{display:grid;place-items:center;width:42px;height:42px;margin-bottom:20px;border-radius:50%;background:var(--ink);color:var(--lime);font-weight:900}
        .step h3{margin:0 0 8px;color:var(--ink);font-size:20px}
        .step p{margin:0;color:var(--muted);font-size:14px}
        .notice{display:flex;gap:16px;align-items:flex-start;margin-top:38px;padding:20px 22px;border:1px solid #DCE7BC;border-radius:var(--radius-md);background:var(--soft-lime)}
        .notice-mark{color:var(--lime-dark);font-size:23px;font-weight:900;line-height:1}
        .notice strong{display:block;margin-bottom:3px;color:var(--ink)}
        .notice p{margin:0;color:#586346;font-size:14px}
        .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
        .info-card{padding:27px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--white);box-shadow:var(--shadow)}
        .info-card.orange{background:var(--soft-orange);border-color:#F4D5B2}
        .info-card h3{margin:0 0 11px;color:var(--ink);font-size:21px}
        .info-card p{margin:0;color:var(--muted);font-size:15px}
        .info-list{margin:16px 0 0;padding:0;list-style:none}
        .info-list li{padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
        .info-list li:last-child{border:0}
        .faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line);background:var(--white)}
        .faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:65px;padding:0 20px;color:var(--ink);font-weight:800;cursor:pointer;list-style:none}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--lime-dark);font-size:24px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 52px 20px 20px;color:var(--muted);font-size:14px}
        .cta{padding:58px 0;background:var(--ink);color:var(--white)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
        .cta h2{margin:0 0 8px;font-size:clamp(26px,4vw,40px);line-height:1.3;letter-spacing:-.04em}
        .cta p{margin:0;color:#B8C1BC}
        .site-footer{padding:60px 0 25px;background:var(--ink);color:#C9D0CC}
        .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:35px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.12)}
        .footer-brand{min-width:0;margin-bottom:15px}
        .footer-description{max-width:280px;margin:0;color:#9FAAA4;font-size:14px}
        .footer-title{margin:3px 0 15px;color:var(--white);font-size:15px}
        .footer-links{margin:0;padding:0;list-style:none}
        .footer-links li{margin:7px 0;color:#AEB6B2;font-size:14px}
        .footer-links a{transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{padding:15px;border:1px solid rgba(243,166,90,.28);border-radius:10px;color:#C9B69D;background:rgba(243,166,90,.07);font-size:13px}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#89938E;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:1024px){
            .nav-menu a{padding-left:8px;padding-right:8px}
            .nav-menu a:after{right:8px;left:8px}
            .hero-inner{gap:38px}
            .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
            .footer-grid>div:last-child{grid-column:span 3}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{min-height:68px}
            .brand{min-width:0}
            .brand-copy strong{font-size:15px}
            .brand-copy small{font-size:10px}
            .menu-toggle{display:block}
            .nav-menu{display:none;position:absolute;top:68px;right:0;left:0;padding:12px 16px 20px;align-items:stretch;flex-direction:column;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
            .nav-menu.is-open{display:flex}
            .nav-menu a{padding:13px 10px}
            .nav-menu a:after{right:10px;bottom:5px;left:10px}
            .nav-menu .nav-cta{margin-top:8px}
            .hero-inner,.download-grid{grid-template-columns:1fr;gap:34px}
            .page-hero{padding:54px 0}
            .app-preview{min-height:260px}
            .feature-row,.steps{grid-template-columns:1fr}
            .feature-item{padding:10px 0}
            .step{padding:26px 0;border-bottom:1px solid var(--line)}
            .step:not(:last-child){margin-right:0}
            .info-grid{grid-template-columns:1fr}
            .section{padding:68px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-head p{margin-top:12px}
            .section-head .text-link{margin-top:16px}
            .download-art{min-height:315px}
            .cta-inner{display:block}
            .cta-inner .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:last-child{grid-column:span 2}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:480px){
            .page-hero h1{font-size:36px}
            .page-hero p{font-size:16px}
            .hero-actions,.download-actions{align-items:stretch;flex-direction:column}
            .hero-actions .btn,.download-actions .btn{width:100%}
            .download-points{grid-template-columns:1fr}
            .download-actions{flex-direction:row;align-items:center}
            .download-actions .btn{width:auto;flex:1}
            .qr-box{width:78px;height:78px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div:last-child{grid-column:auto}
        }

/* roulang page: category2 */
:root {
            --ink: #171A1C;
            --ink-soft: #252A2D;
            --lime: #B8E44C;
            --lime-dark: #8BAE2B;
            --apricot: #F3A65A;
            --paper: #F5F6F1;
            --white: #FFFFFF;
            --text: #25292B;
            --muted: #707879;
            --line: #E1E5DE;
            --soft-lime: #EEF7D7;
            --soft-orange: #FFF0DE;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow: 0 12px 32px rgba(23, 26, 28, .07);
            --container: 1200px;
            --ease: 180ms ease;
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            background: var(--paper);
            color: var(--text);
            font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; max-width: 100%; }
        button, input { font: inherit; }
        button { cursor: pointer; border: 0; }
        ul { margin: 0; padding: 0; list-style: none; }
        p { margin: 0; }
        .container {
            width: min(var(--container), calc(100% - 64px));
            margin: 0 auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(23, 26, 28, .97);
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .nav-wrap {
            min-height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            min-width: 225px;
            color: var(--white);
        }
        .brand-mark {
            display: grid;
            place-items: center;
            width: 42px;
            height: 42px;
            color: var(--ink);
            background: var(--lime);
            border-radius: 11px;
            font-size: 17px;
            font-weight: 900;
            letter-spacing: -.08em;
        }
        .brand-copy strong {
            display: block;
            font-size: 17px;
            line-height: 1.2;
            letter-spacing: -.03em;
        }
        .brand-copy small {
            display: block;
            margin-top: 2px;
            color: #AEB6B2;
            font-size: 11px;
            line-height: 1.2;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 4px;
        }
        .nav-menu a {
            position: relative;
            display: block;
            padding: 27px 13px 25px;
            color: #C9D0CC;
            font-size: 14px;
            font-weight: 700;
            transition: color var(--ease);
        }
        .nav-menu a::after {
            position: absolute;
            right: 13px;
            bottom: 17px;
            left: 13px;
            height: 3px;
            background: var(--lime);
            border-radius: 4px;
            content: "";
            opacity: 0;
            transform: scaleX(.4);
            transition: opacity var(--ease), transform var(--ease);
        }
        .nav-menu a:hover,
        .nav-menu a.active { color: var(--white); }
        .nav-menu a.active::after,
        .nav-menu a:hover::after {
            opacity: 1;
            transform: scaleX(1);
        }
        .nav-menu .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 42px;
            padding: 0 17px;
            color: var(--ink) !important;
            background: var(--lime);
            border-radius: 9px;
            font-size: 13px !important;
            transition: background var(--ease), transform var(--ease);
        }
        .nav-menu .nav-cta::after { display: none; }
        .nav-menu .nav-cta:hover {
            background: #C9EF68;
            color: var(--ink) !important;
            transform: translateY(-2px);
        }
        .menu-toggle {
            display: none;
            padding: 9px;
            color: var(--white);
            background: transparent;
            font-size: 26px;
        }

        .page-hero {
            position: relative;
            overflow: hidden;
            padding: 82px 0 76px;
            color: var(--white);
            background: var(--ink);
        }
        .page-hero::before {
            position: absolute;
            top: -250px;
            right: -100px;
            width: 570px;
            height: 570px;
            border: 1px solid rgba(184,228,76,.22);
            border-radius: 50%;
            box-shadow: 0 0 0 42px rgba(184,228,76,.025), 0 0 0 84px rgba(184,228,76,.025);
            content: "";
        }
        .page-hero::after {
            position: absolute;
            right: 25%;
            bottom: -280px;
            width: 480px;
            height: 480px;
            border: 1px solid rgba(243,166,90,.16);
            border-radius: 50%;
            content: "";
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 820px;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--lime);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .12em;
        }
        .eyebrow::before {
            width: 24px;
            height: 3px;
            background: var(--apricot);
            border-radius: 5px;
            content: "";
        }
        .page-hero h1 {
            max-width: 760px;
            margin: 16px 0 20px;
            font-size: clamp(38px, 5.2vw, 68px);
            line-height: 1.17;
            letter-spacing: -.06em;
        }
        .page-hero h1 em {
            color: var(--lime);
            font-style: normal;
        }
        .hero-lead {
            max-width: 700px;
            color: #C5CCC8;
            font-size: 18px;
            line-height: 1.85;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 31px;
        }
        .meta-pill {
            display: inline-flex;
            align-items: center;
            min-height: 36px;
            padding: 0 14px;
            color: #D9E0DA;
            background: rgba(255,255,255,.08);
            border: 1px solid rgba(255,255,255,.13);
            border-radius: 8px;
            font-size: 13px;
        }
        .meta-pill strong {
            margin-right: 6px;
            color: var(--lime);
        }

        .section { padding: 88px 0; }
        .section-head {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 34px;
        }
        .section-head h2 {
            margin: 8px 0 0;
            color: var(--ink);
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.25;
            letter-spacing: -.04em;
        }
        .section-head p {
            max-width: 520px;
            color: var(--muted);
        }
        .filter-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 22px;
            padding: 20px 24px;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
        }
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 9px;
        }
        .filter-tab {
            min-height: 40px;
            padding: 0 16px;
            color: var(--muted);
            background: var(--paper);
            border: 1px solid var(--line);
            border-radius: 8px;
            font-size: 14px;
            font-weight: 700;
            transition: all var(--ease);
        }
        .filter-tab:hover,
        .filter-tab.active {
            color: var(--ink);
            background: var(--soft-lime);
            border-color: var(--lime);
        }
        .update-time {
            color: var(--muted);
            font-size: 13px;
            white-space: nowrap;
        }
        .update-time strong { color: var(--ink); }

        .feature-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
            gap: 24px;
            margin-top: 28px;
        }
        .feature-card {
            position: relative;
            min-height: 342px;
            display: flex;
            align-items: end;
            overflow: hidden;
            padding: 30px;
            color: var(--white);
            background:
                linear-gradient(125deg, rgba(23,26,28,.96), rgba(37,42,45,.72)),
                repeating-linear-gradient(135deg, transparent 0 18px, rgba(184,228,76,.08) 19px 20px);
            border-radius: var(--radius-lg);
        }
        .feature-card::before {
            position: absolute;
            top: 38px;
            right: 38px;
            width: 150px;
            height: 150px;
            border: 1px solid rgba(184,228,76,.4);
            border-radius: 50%;
            content: "";
        }
        .feature-card::after {
            position: absolute;
            top: 112px;
            right: 78px;
            width: 72px;
            height: 72px;
            border: 1px solid rgba(243,166,90,.65);
            border-radius: 50%;
            content: "";
        }
        .feature-content { position: relative; z-index: 1; max-width: 610px; }
        .tag {
            display: inline-flex;
            align-items: center;
            min-height: 27px;
            padding: 0 10px;
            color: var(--ink);
            background: var(--lime);
            border-radius: 6px;
            font-size: 12px;
            font-weight: 800;
        }
        .tag.orange {
            color: #6D3C10;
            background: var(--soft-orange);
        }
        .feature-card h3 {
            margin: 16px 0 9px;
            font-size: clamp(24px, 3vw, 36px);
            line-height: 1.35;
            letter-spacing: -.035em;
        }
        .feature-card p { color: #C6CECA; }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 21px;
            color: var(--lime);
            font-weight: 800;
        }
        .feature-link span { font-size: 20px; transition: transform var(--ease); }
        .feature-link:hover span { transform: translateX(4px); }

        .side-news {
            display: grid;
            gap: 14px;
        }
        .news-mini {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 164px;
            padding: 21px;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: 0 7px 22px rgba(23,26,28,.045);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }
        .news-mini:hover {
            border-color: var(--lime);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .news-mini h3 {
            margin: 12px 0 7px;
            color: var(--ink);
            font-size: 18px;
            line-height: 1.45;
        }
        .news-mini p { color: var(--muted); font-size: 13px; }
        .news-date { color: var(--muted); font-size: 12px; }

        .timeline-wrap {
            display: grid;
            grid-template-columns: 220px minmax(0, 1fr);
            gap: 48px;
            align-items: start;
        }
        .timeline-intro {
            position: sticky;
            top: 110px;
        }
        .timeline-intro h3 {
            margin: 12px 0;
            color: var(--ink);
            font-size: 25px;
            line-height: 1.4;
        }
        .timeline-intro p { color: var(--muted); font-size: 14px; }
        .timeline {
            position: relative;
            padding-left: 34px;
        }
        .timeline::before {
            position: absolute;
            top: 9px;
            bottom: 9px;
            left: 5px;
            width: 1px;
            background: var(--line);
            content: "";
        }
        .timeline-item {
            position: relative;
            padding: 0 0 31px;
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item::before {
            position: absolute;
            top: 8px;
            left: -34px;
            width: 11px;
            height: 11px;
            background: var(--lime);
            border: 3px solid var(--paper);
            border-radius: 50%;
            box-shadow: 0 0 0 1px var(--lime-dark);
            content: "";
        }
        .timeline-date {
            margin-bottom: 7px;
            color: var(--lime-dark);
            font-size: 13px;
            font-weight: 800;
        }
        .timeline-item h3 {
            margin: 0 0 6px;
            color: var(--ink);
            font-size: 20px;
            line-height: 1.45;
        }
        .timeline-item p { max-width: 680px; color: var(--muted); font-size: 14px; }
        .timeline-item a {
            display: inline-flex;
            margin-top: 8px;
            color: var(--ink);
            font-size: 13px;
            font-weight: 800;
            border-bottom: 1px solid var(--lime);
        }

        .topic-section { background: var(--white); }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 17px;
        }
        .topic-card {
            position: relative;
            min-height: 190px;
            padding: 25px;
            background: var(--paper);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
        }
        .topic-card:hover {
            border-color: var(--lime);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .topic-number {
            display: inline-grid;
            place-items: center;
            width: 32px;
            height: 32px;
            color: var(--ink);
            background: var(--apricot);
            border-radius: 8px;
            font-size: 13px;
            font-weight: 900;
        }
        .topic-card h3 {
            margin: 17px 0 7px;
            color: var(--ink);
            font-size: 19px;
        }
        .topic-card p { color: var(--muted); font-size: 14px; line-height: 1.7; }

        .info-strip {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 26px;
        }
        .info-box {
            padding: 25px 28px;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
        }
        .info-box.lime-box { background: var(--soft-lime); }
        .info-box.orange-box { background: var(--soft-orange); }
        .info-box h3 { margin: 0 0 8px; color: var(--ink); font-size: 19px; }
        .info-box p { color: #5F6764; font-size: 14px; }

        .app-banner {
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 42px;
            align-items: center;
            padding: 45px;
            color: var(--white);
            background: var(--ink);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .app-visual {
            position: relative;
            min-height: 235px;
            display: grid;
            place-items: center;
            background: #242A2C;
            border-radius: 14px;
            overflow: hidden;
        }
        .app-visual::before,
        .app-visual::after {
            position: absolute;
            border: 1px solid rgba(184,228,76,.25);
            border-radius: 50%;
            content: "";
        }
        .app-visual::before { width: 310px; height: 310px; }
        .app-visual::after { width: 210px; height: 210px; border-color: rgba(243,166,90,.35); }
        .app-screen {
            position: relative;
            z-index: 1;
            width: 170px;
            padding: 15px;
            background: var(--white);
            border-radius: 16px;
            box-shadow: 0 20px 35px rgba(0,0,0,.25);
        }
        .screen-top {
            display: flex;
            justify-content: space-between;
            color: var(--ink);
            font-size: 10px;
            font-weight: 800;
        }
        .screen-score {
            margin-top: 12px;
            padding: 12px 9px;
            color: var(--white);
            background: var(--ink);
            border-radius: 9px;
            font-size: 10px;
        }
        .screen-score strong { display: block; margin-top: 5px; color: var(--lime); font-size: 16px; }
        .screen-line {
            height: 7px;
            margin-top: 10px;
            background: #E7EBE4;
            border-radius: 5px;
        }
        .screen-line.short { width: 66%; background: var(--apricot); }
        .app-copy h2 {
            margin: 10px 0 13px;
            font-size: clamp(27px, 3vw, 38px);
            line-height: 1.3;
        }
        .app-copy p { color: #C4CCC8; }
        .app-points {
            display: grid;
            gap: 8px;
            margin: 20px 0;
            color: #DDE4DF;
            font-size: 14px;
        }
        .app-points li::before {
            margin-right: 9px;
            color: var(--lime);
            content: "✓";
            font-weight: 900;
        }
        .button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 46px;
            padding: 0 20px;
            border-radius: 9px;
            font-size: 14px;
            font-weight: 800;
            transition: transform var(--ease), background var(--ease), box-shadow var(--ease);
        }
        .button-primary {
            color: var(--ink);
            background: var(--lime);
        }
        .button-primary:hover {
            color: var(--ink);
            background: #C9EF68;
            box-shadow: 0 8px 18px rgba(184,228,76,.18);
            transform: translateY(-2px);
        }
        .button-light {
            color: var(--ink);
            background: var(--white);
        }
        .button-light:hover { background: var(--soft-lime); transform: translateY(-2px); }
        .button:focus-visible,
        .filter-tab:focus-visible,
        .nav-menu a:focus-visible,
        .faq-question:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(184,228,76,.55);
            outline-offset: 3px;
        }

        .faq-layout {
            display: grid;
            grid-template-columns: .72fr 1.28fr;
            gap: 60px;
            align-items: start;
        }
        .faq-intro h2 {
            margin: 9px 0 13px;
            color: var(--ink);
            font-size: clamp(28px, 4vw, 40px);
            line-height: 1.3;
        }
        .faq-intro p { color: var(--muted); }
        .faq-list {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-item + .faq-item { border-top: 1px solid var(--line); }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            min-height: 62px;
            padding: 14px 21px;
            color: var(--ink);
            background: var(--white);
            text-align: left;
            font-size: 15px;
            font-weight: 800;
        }
        .faq-question:hover { background: var(--soft-lime); }
        .faq-icon {
            flex: 0 0 auto;
            color: var(--lime-dark);
            font-size: 23px;
            font-weight: 400;
            transition: transform var(--ease);
        }
        .faq-answer {
            display: none;
            padding: 0 21px 18px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-icon { transform: rotate(45deg); }

        .cta-section { padding: 0 0 92px; }
        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 25px;
            padding: 32px 38px;
            color: var(--white);
            background: var(--ink-soft);
            border-radius: var(--radius-lg);
        }
        .cta-box h2 { margin: 0 0 6px; font-size: 28px; line-height: 1.35; }
        .cta-box p { color: #BBC5C0; font-size: 14px; }

        .site-footer {
            padding: 62px 0 25px;
            color: #C8D0CB;
            background: var(--ink);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.35fr .7fr .7fr 1fr;
            gap: 38px;
            padding-bottom: 46px;
        }
        .footer-brand { min-width: 0; }
        .footer-description {
            max-width: 320px;
            margin-top: 18px;
            color: #98A39D;
            font-size: 13px;
            line-height: 1.8;
        }
        .footer-title {
            margin: 3px 0 17px;
            color: var(--white);
            font-size: 15px;
        }
        .footer-links { display: grid; gap: 8px; }
        .footer-links a {
            color: #9FAAA4;
            font-size: 13px;
            transition: color var(--ease);
        }
        .footer-links a:hover { color: var(--lime); }
        .footer-risk {
            padding: 14px;
            color: #AAB4AE;
            background: rgba(255,255,255,.06);
            border-left: 3px solid var(--apricot);
            border-radius: 7px;
            font-size: 12px;
            line-height: 1.7;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            padding-top: 20px;
            color: #7F8A84;
            border-top: 1px solid rgba(255,255,255,.1);
            font-size: 12px;
        }
        .footer-bottom a:hover { color: var(--lime); }

        @media (max-width: 1024px) {
            .container { width: min(var(--container), calc(100% - 48px)); }
            .nav-menu a { padding-right: 9px; padding-left: 9px; font-size: 13px; }
            .nav-menu .nav-cta { padding: 0 12px; }
            .feature-grid { grid-template-columns: 1fr; }
            .side-news { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 32px, var(--container)); }
            .nav-wrap { min-height: 70px; }
            .brand { min-width: 0; }
            .brand-copy strong { font-size: 14px; }
            .brand-copy small { font-size: 10px; }
            .menu-toggle { display: block; }
            .nav-menu {
                position: absolute;
                top: 70px;
                right: 16px;
                left: 16px;
                display: none;
                padding: 9px;
                background: var(--ink-soft);
                border: 1px solid rgba(255,255,255,.1);
                border-radius: 12px;
                box-shadow: 0 18px 35px rgba(0,0,0,.22);
            }
            .nav-menu.show { display: block; }
            .nav-menu a { padding: 13px 14px; border-radius: 7px; }
            .nav-menu a::after { display: none; }
            .nav-menu a:hover,
            .nav-menu a.active { background: rgba(184,228,76,.12); }
            .nav-menu .nav-cta {
                margin-top: 6px;
                width: 100%;
            }
            .page-hero { padding: 63px 0 60px; }
            .page-hero h1 { font-size: clamp(36px, 11vw, 54px); }
            .hero-lead { font-size: 16px; }
            .section { padding: 64px 0; }
            .section-head { display: block; margin-bottom: 25px; }
            .section-head p { margin-top: 12px; }
            .filter-panel { display: block; padding: 17px; }
            .update-time { display: block; margin-top: 14px; }
            .feature-card { min-height: 360px; padding: 24px; }
            .side-news { grid-template-columns: 1fr; }
            .timeline-wrap,
            .faq-layout,
            .app-banner { grid-template-columns: 1fr; gap: 28px; }
            .timeline-intro { position: static; }
            .topic-grid { grid-template-columns: 1fr 1fr; }
            .info-strip { grid-template-columns: 1fr; }
            .app-banner { padding: 24px; }
            .cta-box { display: block; padding: 27px 24px; }
            .cta-box .button { margin-top: 21px; }
        }
        @media (max-width: 520px) {
            .topic-grid { grid-template-columns: 1fr; }
            .hero-meta { display: grid; }
            .meta-pill { justify-content: center; }
            .feature-card::before { right: -45px; }
            .feature-card::after { right: 31px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
            .footer-grid > div:first-child,
            .footer-grid > div:last-child { grid-column: 1 / -1; }
            .footer-bottom { display: block; line-height: 2; }
            .footer-bottom span { display: block; }
        }

/* roulang page: category4 */
:root {
            --ink:#171A1C;--ink-soft:#252A2D;--lime:#B8E44C;--lime-dark:#8BAE2B;
            --apricot:#F3A65A;--paper:#F5F6F1;--white:#FFF;--text:#25292B;
            --muted:#707879;--line:#E1E5DE;--soft-lime:#EEF7D7;--soft-orange:#FFF0DE;
            --radius-sm:10px;--radius-md:14px;--radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);--container:1200px;--ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(23,26,28,.97);border-bottom:1px solid rgba(255,255,255,.08)}
        .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{display:grid;place-items:center;width:42px;height:42px;color:var(--ink);background:var(--lime);border-radius:11px;font-size:17px;font-weight:900;letter-spacing:-.08em}
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{display:flex;align-items:center;justify-content:flex-end;gap:4px;list-style:none;margin:0;padding:0}
        .nav-menu a{position:relative;display:block;padding:27px 13px 25px;color:#C9D0CC;font-size:14px;font-weight:700;transition:color var(--ease)}
        .nav-menu a:after{position:absolute;right:13px;bottom:17px;left:13px;height:3px;background:var(--lime);border-radius:4px;content:"";opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease)}
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active:after,.nav-menu a:hover:after{opacity:1;transform:scaleX(1)}
        .nav-menu .nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 17px;color:var(--ink)!important;background:var(--lime);border-radius:9px;font-size:13px!important}
        .nav-menu .nav-cta:after{display:none}
        .nav-menu .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:var(--white);background:transparent;font-size:26px}
        .page-hero{position:relative;overflow:hidden;padding:78px 0 72px;color:var(--white);background:var(--ink)}
        .page-hero:after{position:absolute;right:7%;bottom:-190px;width:430px;height:430px;border:1px solid rgba(184,228,76,.2);border-radius:50%;content:"";box-shadow:0 0 0 34px rgba(184,228,76,.03),0 0 0 68px rgba(184,228,76,.025)}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
        .eyebrow{color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.1em}
        .page-hero h1{max-width:700px;margin:14px 0 20px;font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-.055em}
        .page-hero h1 em{color:var(--lime);font-style:normal}
        .hero-copy{max-width:650px;color:#C6CECA;font-size:17px}
        .hero-actions{display:flex;gap:12px;margin-top:29px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:9px;font-size:14px;font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease)}
        .btn-primary{color:var(--ink);background:var(--lime)}
        .btn-primary:hover{background:#C9EF68;transform:translateY(-2px);box-shadow:0 8px 18px rgba(184,228,76,.18)}
        .btn-secondary{color:var(--white);border:1px solid rgba(255,255,255,.28);background:transparent}
        .btn-secondary:hover{color:var(--ink);background:var(--white);transform:translateY(-2px)}
        .guide-map{position:relative;z-index:2;padding:25px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);background:rgba(255,255,255,.06)}
        .map-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;color:#DCE3DF;font-size:13px;font-weight:800}
        .map-status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px}
        .map-status:before{width:8px;height:8px;border-radius:50%;background:var(--lime);content:""}
        .map-line{display:flex;align-items:center;gap:14px;padding:15px 0;border-top:1px solid rgba(255,255,255,.1)}
        .map-number{display:grid;place-items:center;width:32px;height:32px;color:var(--ink);background:var(--lime);border-radius:50%;font-weight:900}
        .map-line:nth-child(3) .map-number{background:var(--apricot)}
        .map-line span:last-child{color:#D1D8D4;font-size:14px}
        .section{padding:92px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
        .section-head h2{margin:8px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.04em}
        .section-head p{max-width:510px;margin:0;color:var(--muted)}
        .guide-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:42px;align-items:start}
        .toc{position:sticky;top:105px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--white);box-shadow:var(--shadow)}
        .toc-title{margin:0 0 14px;color:var(--ink);font-size:17px;font-weight:800}
        .toc a{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px;font-weight:700;transition:color var(--ease),padding var(--ease)}
        .toc a:last-child{border-bottom:0}
        .toc a:before{width:5px;height:5px;border-radius:50%;background:var(--lime-dark);content:""}
        .toc a:hover{padding-left:4px;color:var(--ink)}
        .reading{padding:36px 42px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--white);box-shadow:var(--shadow)}
        .reading h2{margin:0 0 14px;color:var(--ink);font-size:28px;line-height:1.35}
        .reading h3{margin:30px 0 9px;color:var(--ink);font-size:20px}
        .reading p{margin:0 0 16px;color:#555D5D}
        .reading ul{margin:12px 0 20px;padding-left:22px;color:#555D5D}
        .reading li{margin:6px 0}
        .reading strong{color:var(--ink)}
        .notice{display:flex;gap:14px;margin-top:26px;padding:18px 20px;border-left:4px solid var(--apricot);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--soft-orange);color:#6B5035;font-size:14px}
        .notice b{color:#8B5B29;white-space:nowrap}
        .steps-section{background:#fff}
        .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
        .step-card{position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper);transition:transform var(--ease),box-shadow var(--ease)}
        .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .step-card:not(:last-child):after{position:absolute;top:42px;right:-21px;width:24px;height:1px;background:var(--lime-dark);content:""}
        .step-index{display:grid;place-items:center;width:42px;height:42px;margin-bottom:20px;border-radius:11px;color:var(--ink);background:var(--lime);font-size:18px;font-weight:900}
        .step-card:nth-child(2) .step-index,.step-card:nth-child(4) .step-index{background:var(--apricot)}
        .step-card h3{margin:0 0 8px;color:var(--ink);font-size:18px}
        .step-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
        .safety{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .safety-card{padding:29px;border-radius:var(--radius-md);border:1px solid var(--line);background:var(--soft-lime)}
        .safety-card.warning{background:var(--soft-orange)}
        .safety-card h3{margin:0 0 9px;color:var(--ink);font-size:21px}
        .safety-card p{margin:0;color:#59605C;font-size:15px}
        .faq-list{max-width:850px;margin:0 auto}
        .faq-item{margin-bottom:10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);overflow:hidden}
        .faq-question{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;min-height:58px;padding:15px 20px;color:var(--ink);background:transparent;text-align:left;font-weight:800}
        .faq-question:hover{background:var(--soft-lime)}
        .faq-question:after{content:"+";color:var(--lime-dark);font-size:24px;font-weight:400}
        .faq-item[open] .faq-question:after{content:"−"}
        .faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px}
        .cta-band{padding:58px 0;background:var(--ink);color:var(--white)}
        .cta-content{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta-content h2{margin:0 0 8px;font-size:32px;line-height:1.3}
        .cta-content p{margin:0;color:#BBC4BF}
        .site-footer{padding:60px 0 22px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:38px}
        .footer-brand{margin-bottom:17px}
        .footer-description{max-width:300px;margin:0;color:#929C97;font-size:14px}
        .footer-title{margin:4px 0 15px;color:var(--white);font-size:15px}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin:7px 0}
        .footer-links a{color:#AEB6B2;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{padding:14px;border:1px solid rgba(243,166,90,.26);border-radius:var(--radius-sm);color:#C6A378;background:rgba(243,166,90,.08);font-size:13px;line-height:1.7}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#89928D;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media (max-width:1024px){
            .nav-menu a{padding-right:8px;padding-left:8px;font-size:13px}
            .hero-inner{gap:35px}.steps-grid{grid-template-columns:repeat(2,1fr)}
            .step-card:nth-child(2):after{display:none}.footer-grid{grid-template-columns:1fr 1fr}
        }
        @media (max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .nav-wrap{min-height:68px}.menu-toggle{display:block}
            .nav-menu{display:none;position:absolute;top:68px;right:0;left:0;align-items:stretch;flex-direction:column;padding:12px 16px 20px;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
            .nav-menu.is-open{display:flex}.nav-menu a{padding:13px 10px}.nav-menu a:after{right:10px;bottom:5px;left:10px}
            .nav-menu .nav-cta{margin-top:8px;min-height:46px}
            .page-hero{padding:60px 0}.hero-inner{grid-template-columns:1fr;gap:34px}.guide-map{max-width:520px}
            .section{padding:65px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
            .guide-layout{grid-template-columns:1fr;gap:22px}.toc{position:static}.reading{padding:26px 22px}
            .safety{grid-template-columns:1fr}.cta-content{display:block}.cta-content .btn{margin-top:24px}
        }
        @media (max-width:520px){
            .brand{min-width:0}.brand-copy strong{font-size:14px}.brand-copy small{font-size:10px}
            .page-hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
            .steps-grid{grid-template-columns:1fr}.step-card:not(:last-child):after{display:none}
            .footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
            .reading h2{font-size:24px}
        }

/* roulang page: category5 */
:root{
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#FFFFFF;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--text);
            background:var(--paper);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(23,26,28,.98);border-bottom:1px solid rgba(255,255,255,.08)}
        .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{display:grid;place-items:center;width:42px;height:42px;color:var(--ink);background:var(--lime);border-radius:11px;font-size:17px;font-weight:900;letter-spacing:-.08em}
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin:0;padding:0;list-style:none}
        .nav-menu a{position:relative;display:block;padding:27px 13px 25px;color:#C9D0CC;font-size:14px;font-weight:700;transition:color var(--ease)}
        .nav-menu a:after{position:absolute;right:13px;bottom:17px;left:13px;height:3px;background:var(--lime);border-radius:4px;content:"";opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease)}
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active:after,.nav-menu a:hover:after{opacity:1;transform:scaleX(1)}
        .nav-menu .nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 17px;color:var(--ink)!important;background:var(--lime);border-radius:9px;font-size:13px!important}
        .nav-menu .nav-cta:after{display:none}
        .nav-menu .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:#fff;background:transparent;font-size:26px}
        .page-hero{padding:76px 0 72px;color:var(--white);background:var(--ink);position:relative;overflow:hidden}
        .page-hero:after{position:absolute;right:-100px;bottom:-220px;width:520px;height:520px;border:1px solid rgba(184,228,76,.2);border-radius:50%;box-shadow:0 0 0 38px rgba(184,228,76,.03),0 0 0 78px rgba(184,228,76,.025);content:""}
        .hero-content{position:relative;z-index:1;max-width:760px}
        .eyebrow{color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.12em}
        .page-hero h1{margin:14px 0 18px;color:#fff;font-size:clamp(36px,5vw,60px);line-height:1.2;letter-spacing:-.055em}
        .page-hero p{max-width:700px;margin:0;color:#BFC8C2;font-size:18px}
        .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
        .hero-meta span{padding:7px 12px;border:1px solid rgba(184,228,76,.32);border-radius:8px;color:#D9E9B1;font-size:13px}
        .section{padding:86px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
        .section-head h2{margin:8px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.04em}
        .section-head p{max-width:540px;margin:0;color:var(--muted)}
        .faq-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:54px;align-items:start}
        .topic-nav{position:sticky;top:105px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow)}
        .topic-nav strong{display:block;margin-bottom:14px;color:var(--ink);font-size:18px}
        .topic-nav button{display:block;width:100%;padding:11px 12px;text-align:left;color:var(--muted);background:transparent;border-radius:8px;font-weight:700;transition:all var(--ease)}
        .topic-nav button:hover,.topic-nav button.active{color:var(--ink);background:var(--soft-lime)}
        .search-box{display:flex;gap:10px;margin-bottom:22px}
        .search-box input{width:100%;height:50px;padding:0 16px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:10px;outline:0;transition:border var(--ease),box-shadow var(--ease)}
        .search-box input:focus{border-color:var(--lime-dark);box-shadow:0 0 0 4px rgba(184,228,76,.2)}
        .search-box button{min-width:92px;height:50px;color:var(--ink);background:var(--lime);border-radius:9px;font-weight:800;transition:all var(--ease)}
        .search-box button:hover{background:#C9EF68;transform:translateY(-2px);box-shadow:0 8px 18px rgba(139,174,43,.2)}
        .faq-group{margin-bottom:30px}
        .group-title{display:flex;align-items:center;gap:10px;margin:0 0 13px;color:var(--ink);font-size:21px}
        .group-title:before{width:8px;height:22px;background:var(--apricot);border-radius:5px;content:""}
        .faq-list{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item:last-child{border-bottom:0}
        .faq-question{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:60px;padding:16px 20px;color:var(--ink);background:#fff;text-align:left;font-weight:800;transition:background var(--ease)}
        .faq-question:hover{background:#FBFCF8}
        .faq-question:focus-visible,.topic-nav button:focus-visible,.search-box button:focus-visible,.btn:focus-visible{outline:3px solid rgba(184,228,76,.65);outline-offset:2px}
        .faq-icon{display:grid;place-items:center;flex:0 0 25px;width:25px;height:25px;color:var(--ink);background:var(--soft-lime);border-radius:50%;font-size:19px;line-height:1;font-weight:500;transition:transform var(--ease)}
        .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--lime)}
        .faq-answer{display:none;padding:0 54px 19px 20px;color:var(--muted);font-size:15px}
        .faq-item.open .faq-answer{display:block}
        .empty-state{display:none;padding:42px 20px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius-md)}
        .empty-state strong{display:block;margin-bottom:5px;color:var(--ink);font-size:19px}
        .notice{display:flex;gap:14px;align-items:flex-start;margin-top:34px;padding:19px 22px;background:var(--soft-orange);border:1px solid #F5D0A4;border-radius:var(--radius-md);color:#76512E}
        .notice b{color:var(--ink)}
        .quick-links{padding:82px 0;background:#fff}
        .link-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
        .link-card{padding:26px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);transition:transform var(--ease),box-shadow var(--ease),border var(--ease)}
        .link-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow)}
        .link-card .tag{display:inline-block;margin-bottom:15px;padding:4px 9px;color:var(--ink);background:var(--lime);border-radius:6px;font-size:12px;font-weight:800}
        .link-card h3{margin:0 0 8px;color:var(--ink);font-size:21px}
        .link-card p{margin:0 0 18px;color:var(--muted);font-size:14px}
        .text-link{color:var(--ink);font-weight:800}
        .text-link span{color:var(--lime-dark);font-size:20px}
        .cta{padding:70px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0 0 8px;font-size:clamp(27px,4vw,40px);letter-spacing:-.04em}
        .cta p{margin:0;color:#BFC8C2}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:9px;font-weight:800;transition:all var(--ease)}
        .btn-primary{color:var(--ink);background:var(--lime)}
        .btn-primary:hover{color:var(--ink);background:#C9EF68;transform:translateY(-2px);box-shadow:0 9px 20px rgba(184,228,76,.18)}
        .site-footer{padding:62px 0 22px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr 1fr;gap:38px}
        .footer-brand{min-width:0}
        .footer-description{max-width:310px;margin:19px 0 0;color:#9FA9A4;font-size:14px}
        .footer-title{margin:0 0 13px;color:#fff;font-size:15px}
        .footer-links{margin:0;padding:0;list-style:none}
        .footer-links li{margin:7px 0;font-size:14px}
        .footer-links a{color:#AEB6B2;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{padding:14px;background:rgba(243,166,90,.1);border-left:3px solid var(--apricot);color:#D6B995;font-size:13px;line-height:1.7}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:48px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#87918C;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:1024px){
            .nav-menu a{padding-left:8px;padding-right:8px;font-size:13px}
            .nav-menu a:after{right:8px;left:8px}
            .faq-layout{grid-template-columns:230px minmax(0,1fr);gap:28px}
            .footer-grid{grid-template-columns:1.3fr .8fr .8fr}
            .footer-grid>div:last-child{grid-column:1/-1}
        }
        @media(max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .nav-wrap{min-height:68px}
            .brand{min-width:0}
            .brand-copy strong{font-size:15px}
            .brand-copy small{font-size:10px}
            .menu-toggle{display:block}
            .nav-menu{display:none;position:absolute;top:68px;right:0;left:0;align-items:stretch;flex-direction:column;gap:0;padding:8px 16px 18px;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
            .nav-menu.show{display:flex}
            .nav-menu a{padding:14px 10px}
            .nav-menu a:after{right:10px;bottom:8px;left:10px}
            .nav-menu .nav-cta{margin-top:8px}
            .page-hero{padding:58px 0 55px}
            .page-hero p{font-size:16px}
            .section{padding:62px 0}
            .faq-layout{display:block}
            .topic-nav{position:static;margin-bottom:28px}
            .topic-nav div{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}
            .search-box{margin-bottom:28px}
            .link-grid{grid-template-columns:1fr}
            .cta-inner{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}
            .footer-bottom{align-items:flex-start;flex-direction:column;margin-top:32px}
        }
        @media(max-width:480px){
            .brand-mark{width:38px;height:38px}
            .brand-copy strong{font-size:13px}
            .page-hero h1{font-size:35px}
            .hero-meta span{font-size:12px}
            .search-box{display:block}
            .search-box button{width:100%;margin-top:9px}
            .faq-question{padding:14px 15px;font-size:15px}
            .faq-answer{padding:0 43px 17px 15px;font-size:14px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div{grid-column:1/-1!important}
        }

/* roulang page: category4 */
:root{
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#fff;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--paper);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        ul{margin:0;padding:0;list-style:none}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:50;
            background:rgba(23,26,28,.97);
            border-bottom:1px solid rgba(255,255,255,.08)
        }
        .nav-wrap{
            min-height:78px;display:flex;align-items:center;
            justify-content:space-between;gap:24px
        }
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{
            display:grid;place-items:center;width:42px;height:42px;
            color:var(--ink);background:var(--lime);border-radius:11px;
            font-size:17px;font-weight:900;letter-spacing:-.08em
        }
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{display:flex;align-items:center;justify-content:flex-end;gap:4px}
        .nav-menu a{
            position:relative;display:block;padding:27px 13px 25px;
            color:#C9D0CC;font-size:14px;font-weight:700;
            transition:color var(--ease)
        }
        .nav-menu a::after{
            position:absolute;right:13px;bottom:17px;left:13px;height:3px;
            background:var(--lime);border-radius:4px;content:"";
            opacity:0;transform:scaleX(.4);
            transition:opacity var(--ease),transform var(--ease)
        }
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active::after,.nav-menu a:hover::after{opacity:1;transform:scaleX(1)}
        .nav-cta{
            display:inline-flex!important;align-items:center;justify-content:center;
            min-height:42px;padding:0 17px!important;color:var(--ink)!important;
            background:var(--lime);border-radius:9px;font-size:13px!important;
            transition:background var(--ease),transform var(--ease)
        }
        .nav-cta::after{display:none}
        .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:var(--white);background:transparent;font-size:26px}
        .page-hero{
            position:relative;overflow:hidden;padding:86px 0 78px;
            color:var(--white);background:var(--ink)
        }
        .page-hero:before{
            position:absolute;right:-100px;top:-260px;width:610px;height:610px;
            border:1px solid rgba(184,228,76,.2);border-radius:50%;
            box-shadow:0 0 0 42px rgba(184,228,76,.025),0 0 0 84px rgba(184,228,76,.025);
            content:""
        }
        .page-hero:after{
            position:absolute;left:48%;bottom:-250px;width:430px;height:430px;
            border:1px solid rgba(243,166,90,.18);border-radius:50%;content:""
        }
        .hero-inner{position:relative;z-index:1;max-width:790px}
        .eyebrow{
            color:var(--lime);font-size:13px;font-weight:800;
            letter-spacing:.12em;text-transform:uppercase
        }
        .page-hero h1{
            max-width:780px;margin:14px 0 20px;color:var(--white);
            font-size:clamp(36px,5.2vw,64px);line-height:1.2;
            letter-spacing:-.055em;font-weight:800
        }
        .page-hero p{max-width:720px;margin:0;color:#C9D0CC;font-size:18px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .btn-main,.btn-light,.btn-dark{
            display:inline-flex;align-items:center;justify-content:center;
            min-height:46px;padding:0 20px;border-radius:9px;font-weight:800;
            transition:transform var(--ease),background var(--ease),box-shadow var(--ease)
        }
        .btn-main{color:var(--ink);background:var(--lime)}
        .btn-main:hover{background:#C9EF68;transform:translateY(-2px);box-shadow:0 8px 18px rgba(184,228,76,.2)}
        .btn-light{color:var(--white);border:1px solid rgba(255,255,255,.28);background:transparent}
        .btn-light:hover{color:var(--ink);background:var(--white);transform:translateY(-2px)}
        .btn-dark{color:var(--white);background:var(--ink)}
        .btn-dark:hover{background:var(--ink-soft);transform:translateY(-2px)}
        a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
            outline:3px solid var(--apricot);outline-offset:3px
        }
        .section{padding:86px 0}
        .section-head{
            display:flex;align-items:end;justify-content:space-between;
            gap:24px;margin-bottom:34px
        }
        .section-head h2{
            margin:8px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);
            line-height:1.25;letter-spacing:-.04em
        }
        .section-head p{max-width:540px;margin:0;color:var(--muted)}
        .guide-layout{display:grid;grid-template-columns:270px 1fr;gap:28px;align-items:start}
        .guide-index{
            position:sticky;top:104px;padding:22px;background:var(--white);
            border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow)
        }
        .guide-index h3{margin:0 0 15px;color:var(--ink);font-size:18px}
        .guide-index a{
            display:flex;align-items:center;gap:10px;padding:11px 12px;
            color:var(--muted);border-radius:8px;font-weight:700;
            transition:background var(--ease),color var(--ease)
        }
        .guide-index a span{
            display:grid;place-items:center;width:25px;height:25px;
            color:var(--ink);background:var(--soft-lime);border-radius:50%;
            font-size:12px;font-weight:900
        }
        .guide-index a:hover,.guide-index a.current{color:var(--ink);background:var(--soft-lime)}
        .guide-content{
            padding:34px 38px;background:var(--white);
            border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)
        }
        .guide-content article+article{margin-top:45px;padding-top:40px;border-top:1px solid var(--line)}
        .guide-content h2{margin:0 0 13px;color:var(--ink);font-size:28px;line-height:1.35}
        .guide-content h3{margin:23px 0 7px;color:var(--ink);font-size:20px}
        .guide-content p{margin:0 0 14px;color:#505859}
        .guide-content ul{margin:14px 0 0 20px;list-style:disc;color:#505859}
        .guide-content li{padding:4px 0}
        .number-step{display:grid;grid-template-columns:48px 1fr;gap:15px;margin-top:22px}
        .number-step .num{
            display:grid;place-items:center;width:42px;height:42px;
            color:var(--ink);background:var(--lime);border-radius:12px;font-weight:900
        }
        .number-step h3{margin:0 0 3px;font-size:18px}
        .number-step p{margin:0;font-size:15px}
        .notice{
            display:flex;gap:14px;margin-top:26px;padding:18px 20px;
            border-left:4px solid var(--apricot);background:var(--soft-orange);
            border-radius:0 var(--radius-sm) var(--radius-sm) 0
        }
        .notice strong{display:block;margin-bottom:3px;color:var(--ink)}
        .notice p{margin:0;font-size:14px}
        .feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .feature-card{
            padding:25px;background:var(--white);border:1px solid var(--line);
            border-radius:var(--radius-md);box-shadow:var(--shadow);
            transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)
        }
        .feature-card:hover{transform:translateY(-4px);border-color:#C7D99E;box-shadow:0 16px 34px rgba(23,26,28,.1)}
        .feature-icon{
            display:grid;place-items:center;width:42px;height:42px;margin-bottom:16px;
            color:var(--ink);background:var(--soft-lime);border-radius:11px;font-weight:900
        }
        .feature-card:nth-child(2) .feature-icon{background:var(--soft-orange)}
        .feature-card h3{margin:0 0 7px;color:var(--ink);font-size:19px}
        .feature-card p{margin:0;color:var(--muted);font-size:15px}
        .faq-wrap{max-width:880px;margin:0 auto}
        .faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
        .faq-item+.faq-item{margin-top:12px}
        .faq-item summary{
            display:flex;align-items:center;justify-content:space-between;
            min-height:58px;padding:0 20px;color:var(--ink);font-weight:800;
            cursor:pointer;list-style:none
        }
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--lime-dark);font-size:25px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 20px 18px;color:var(--muted);font-size:15px}
        .cta{
            padding:58px 0;color:var(--white);background:var(--ink)
        }
        .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0 0 8px;font-size:clamp(26px,3.5vw,38px);line-height:1.3}
        .cta p{margin:0;color:#BFC8C2}
        .site-footer{padding:58px 0 22px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px}
        .footer-brand{min-width:0}
        .footer-description{max-width:300px;margin:18px 0 0;color:#9FA9A4;font-size:14px}
        .footer-title{margin:4px 0 15px;color:var(--white);font-size:15px}
        .footer-links li+li{margin-top:8px}
        .footer-links a{color:#AEB6B2;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{
            padding:14px;color:#AEB6B2;background:rgba(255,255,255,.06);
            border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-sm);
            font-size:13px;line-height:1.7
        }
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;margin-top:45px;
            padding-top:19px;color:#7F8A84;border-top:1px solid rgba(255,255,255,.1);
            font-size:12px
        }
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:1024px){
            .nav-menu a{padding-right:8px;padding-left:8px;font-size:13px}
            .nav-menu a::after{right:8px;left:8px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{min-height:70px}
            .menu-toggle{display:block}
            .nav-menu{
                display:none;position:absolute;top:70px;right:0;left:0;
                flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;
                background:var(--ink);border-top:1px solid rgba(255,255,255,.08)
            }
            .nav-menu.open{display:flex}
            .nav-menu a{padding:13px 10px}
            .nav-menu a::after{right:10px;bottom:7px;left:10px}
            .nav-cta{margin-top:8px}
            .page-hero{padding:65px 0 58px}
            .page-hero h1{font-size:clamp(34px,10vw,50px)}
            .page-hero p{font-size:16px}
            .section{padding:62px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-head p{margin-top:12px}
            .guide-layout{grid-template-columns:1fr}
            .guide-index{position:static}
            .guide-index ul{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}
            .guide-content{padding:25px 20px}
            .feature-row{grid-template-columns:1fr}
            .cta-box{display:block}
            .cta-box .btn-main{margin-top:22px}
        }
        @media(max-width:520px){
            .brand{min-width:0}
            .brand-copy strong{font-size:14px}
            .brand-copy small{font-size:10px}
            .brand-mark{width:38px;height:38px}
            .hero-actions{display:grid}
            .hero-actions a{width:100%}
            .guide-index ul{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:25px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block}
            .footer-bottom span+span{margin-top:9px}
        }

/* roulang page: category5 */
:root {
            --ink:#171A1C;
            --ink-soft:#252A2D;
            --lime:#B8E44C;
            --lime-dark:#8BAE2B;
            --apricot:#F3A65A;
            --paper:#F5F6F1;
            --white:#fff;
            --text:#25292B;
            --muted:#707879;
            --line:#E1E5DE;
            --soft-lime:#EEF7D7;
            --soft-orange:#FFF0DE;
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --shadow:0 12px 32px rgba(23,26,28,.07);
            --container:1200px;
            --ease:180ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--paper);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
        .site-header{
            position:sticky;
            top:0;
            z-index:50;
            background:rgba(23,26,28,.97);
            border-bottom:1px solid rgba(255,255,255,.08)
        }
        .nav-wrap{
            min-height:78px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:24px
        }
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:225px;color:var(--white)}
        .brand-mark{
            display:grid;
            place-items:center;
            width:42px;
            height:42px;
            color:var(--ink);
            background:var(--lime);
            border-radius:11px;
            font-size:17px;
            font-weight:900;
            letter-spacing:-.08em
        }
        .brand-copy strong{display:block;font-size:17px;line-height:1.2;letter-spacing:-.03em}
        .brand-copy small{display:block;margin-top:2px;color:#AEB6B2;font-size:11px;line-height:1.2}
        .nav-menu{
            display:flex;
            align-items:center;
            justify-content:flex-end;
            gap:4px;
            margin:0;
            padding:0;
            list-style:none
        }
        .nav-menu a{
            position:relative;
            display:block;
            padding:27px 13px 25px;
            color:#C9D0CC;
            font-size:14px;
            font-weight:700;
            transition:color var(--ease)
        }
        .nav-menu a::after{
            position:absolute;
            right:13px;
            bottom:17px;
            left:13px;
            height:3px;
            background:var(--lime);
            border-radius:4px;
            content:"";
            opacity:0;
            transform:scaleX(.4);
            transition:opacity var(--ease),transform var(--ease)
        }
        .nav-menu a:hover,.nav-menu a.active{color:var(--white)}
        .nav-menu a.active::after,.nav-menu a:hover::after{opacity:1;transform:scaleX(1)}
        .nav-cta{
            display:inline-flex!important;
            align-items:center;
            justify-content:center;
            min-height:42px;
            padding:0 17px!important;
            color:var(--ink)!important;
            background:var(--lime);
            border-radius:9px;
            font-size:13px!important;
            transition:background var(--ease),transform var(--ease)
        }
        .nav-cta::after{display:none}
        .nav-cta:hover{background:#C9EF68;color:var(--ink)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;padding:9px;color:var(--white);background:transparent;font-size:26px}
        .page-hero{
            position:relative;
            overflow:hidden;
            padding:76px 0 72px;
            color:var(--white);
            background:var(--ink)
        }
        .page-hero:before{
            position:absolute;
            top:-220px;
            right:-80px;
            width:520px;
            height:520px;
            border:1px solid rgba(184,228,76,.2);
            border-radius:50%;
            box-shadow:0 0 0 42px rgba(184,228,76,.025),0 0 0 84px rgba(184,228,76,.025);
            content:""
        }
        .hero-content{position:relative;z-index:1;max-width:760px}
        .eyebrow{
            color:var(--lime);
            font-size:13px;
            font-weight:800;
            letter-spacing:.1em
        }
        .page-hero h1{
            max-width:760px;
            margin:12px 0 18px;
            color:var(--white);
            font-size:clamp(34px,5vw,64px);
            line-height:1.2;
            letter-spacing:-.055em
        }
        .page-hero p{max-width:690px;margin:0;color:#C9D0CC;font-size:18px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
        .button{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            min-height:46px;
            padding:0 20px;
            border-radius:9px;
            font-weight:800;
            transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease)
        }
        .button:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,26,28,.13)}
        .button:focus-visible,.search-input:focus-visible,.filter-button:focus-visible,.faq-question:focus-visible{
            outline:3px solid rgba(184,228,76,.65);
            outline-offset:3px
        }
        .button-primary{color:var(--ink);background:var(--lime)}
        .button-primary:hover{background:#C9EF68}
        .button-secondary{color:var(--white);border:1px solid rgba(255,255,255,.35);background:transparent}
        .button-secondary:hover{color:var(--ink);background:var(--lime)}
        .section{padding:88px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
        .section-head h2{margin:8px 0 0;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.04em}
        .section-head p{max-width:570px;margin:0;color:var(--muted)}
        .search-panel{
            margin-top:-34px;
            position:relative;
            z-index:2;
            padding:22px;
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius-md);
            box-shadow:var(--shadow)
        }
        .search-row{display:flex;gap:12px}
        .search-input{
            width:100%;
            min-height:48px;
            padding:0 16px;
            color:var(--text);
            background:#fff;
            border:1px solid var(--line);
            border-radius:10px;
            transition:border-color var(--ease),box-shadow var(--ease)
        }
        .search-input:focus{border-color:var(--lime-dark);box-shadow:0 0 0 4px rgba(184,228,76,.18);outline:0}
        .search-input::placeholder{color:#9BA39E}
        .filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
        .filter-button{
            min-height:38px;
            padding:0 14px;
            color:var(--muted);
            background:var(--paper);
            border:1px solid var(--line);
            border-radius:8px;
            font-size:14px;
            font-weight:700;
            transition:all var(--ease)
        }
        .filter-button:hover,.filter-button.active{color:var(--ink);background:var(--soft-lime);border-color:var(--lime)}
        .faq-layout{display:grid;grid-template-columns:270px 1fr;gap:48px;align-items:start}
        .topic-card{
            position:sticky;
            top:108px;
            padding:24px;
            background:var(--ink);
            border-radius:var(--radius-md);
            color:var(--white)
        }
        .topic-card h3{margin:0 0 14px;font-size:20px}
        .topic-card p{margin:0 0 20px;color:#BFC8C2;font-size:14px}
        .topic-list{margin:0;padding:0;list-style:none}
        .topic-list li{border-top:1px solid rgba(255,255,255,.12)}
        .topic-list a{display:flex;justify-content:space-between;padding:12px 0;color:#D5DCD8;font-size:14px;font-weight:700}
        .topic-list a:hover{color:var(--lime)}
        .faq-group{margin-bottom:34px}
        .faq-group:last-child{margin-bottom:0}
        .group-title{display:flex;align-items:center;gap:10px;margin:0 0 14px;color:var(--ink);font-size:22px}
        .group-title:before{width:8px;height:25px;background:var(--apricot);border-radius:3px;content:""}
        .faq-list{overflow:hidden;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item:last-child{border-bottom:0}
        .faq-question{
            display:flex;
            align-items:center;
            justify-content:space-between;
            width:100%;
            min-height:60px;
            padding:16px 20px;
            color:var(--ink);
            text-align:left;
            background:var(--white);
            font-weight:800;
            transition:background var(--ease),color var(--ease)
        }
        .faq-question:hover{background:var(--soft-lime)}
        .faq-question .plus{color:var(--lime-dark);font-size:24px;font-weight:400;line-height:1;transition:transform var(--ease)}
        .faq-item.open .faq-question{background:var(--soft-lime)}
        .faq-item.open .plus{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 54px 20px 20px;color:var(--muted);font-size:15px}
        .faq-item.open .faq-answer{display:block}
        .faq-answer p{margin:0}
        .notice{
            display:flex;
            gap:14px;
            align-items:flex-start;
            margin-top:30px;
            padding:18px 20px;
            color:#5D574D;
            background:var(--soft-orange);
            border:1px solid #F5D4AB;
            border-radius:var(--radius-md)
        }
        .notice-icon{
            flex:0 0 30px;
            display:grid;
            place-items:center;
            width:30px;
            height:30px;
            color:var(--ink);
            background:var(--apricot);
            border-radius:50%;
            font-weight:900
        }
        .notice strong{display:block;margin-bottom:3px;color:var(--ink)}
        .notice p{margin:0;font-size:14px;line-height:1.7}
        .empty-state{
            display:none;
            padding:34px;
            text-align:center;
            color:var(--muted);
            background:var(--white);
            border:1px dashed #BAC5B8;
            border-radius:var(--radius-md)
        }
        .empty-state strong{display:block;margin-bottom:4px;color:var(--ink);font-size:18px}
        .entry-section{padding:78px 0;background:#EAF0E4}
        .entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .entry-card{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:20px;
            padding:26px;
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius-md);
            box-shadow:0 8px 24px rgba(23,26,28,.04);
            transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)
        }
        .entry-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow)}
        .entry-card h3{margin:0 0 5px;color:var(--ink);font-size:22px}
        .entry-card p{margin:0;color:var(--muted);font-size:14px}
        .entry-arrow{color:var(--lime-dark);font-size:27px}
        .site-footer{padding:62px 0 24px;color:#C9D0CC;background:var(--ink)}
        .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:38px}
        .footer-brand{min-width:0}
        .footer-description{max-width:310px;margin:18px 0 0;color:#AEB6B2;font-size:14px}
        .footer-title{margin:0 0 15px;color:var(--white);font-size:15px}
        .footer-links{margin:0;padding:0;list-style:none}
        .footer-links li{margin:6px 0}
        .footer-links a{color:#AEB6B2;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--lime)}
        .footer-risk{padding:14px;color:#B8C1BB;background:rgba(255,255,255,.06);border-left:3px solid var(--apricot);font-size:13px;line-height:1.7}
        .footer-bottom{display:flex;justify-content:space-between;gap:18px;margin-top:46px;padding-top:20px;color:#89938D;border-top:1px solid rgba(255,255,255,.12);font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media (max-width:1024px){
            .nav-menu a{padding-right:8px;padding-left:8px;font-size:13px}
            .nav-menu a:after{right:8px;left:8px}
            .faq-layout{grid-template-columns:230px 1fr;gap:28px}
            .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
            .footer-grid>div:last-child{grid-column:span 3}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 40px))}
            .nav-wrap{min-height:68px}
            .menu-toggle{display:block}
            .nav-menu{
                position:absolute;
                top:68px;
                right:0;
                left:0;
                display:none;
                flex-direction:column;
                align-items:stretch;
                padding:10px 20px 20px;
                background:var(--ink);
                border-top:1px solid rgba(255,255,255,.1)
            }
            .nav-menu.show{display:flex}
            .nav-menu a{padding:14px 4px}
            .nav-menu a:after{right:0;bottom:7px;left:0}
            .nav-cta{margin-top:8px;padding:0 15px!important}
            .page-hero{padding:58px 0}
            .page-hero p{font-size:16px}
            .section{padding:64px 0}
            .section-head{display:block;margin-bottom:24px}
            .section-head p{margin-top:10px}
            .search-row{flex-direction:column}
            .search-row .button{width:100%}
            .faq-layout{display:block}
            .topic-card{position:static;margin-bottom:28px}
            .topic-list{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
            .entry-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:last-child{grid-column:span 2}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media (max-width:520px){
            .container{width:calc(100% - 32px)}
            .brand{min-width:0}
            .brand-copy strong{font-size:14px}
            .brand-copy small{font-size:10px}
            .page-hero h1{font-size:36px}
            .hero-actions .button{width:100%}
            .search-panel{padding:16px}
            .topic-list{display:block}
            .faq-question{padding:15px 16px;font-size:14px}
            .faq-answer{padding:0 16px 18px}
            .entry-card{padding:20px}
            .entry-card h3{font-size:19px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div:last-child{grid-column:auto}
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}