/* roulang page: index */
:root {
            --ink: #171817;
            --ink-soft: #343735;
            --paper: #fbfaf7;
            --warm: #f1eee8;
            --warm-deep: #e5e0d6;
            --orange: #ed6b3a;
            --orange-dark: #c84e27;
            --lime: #b7d66b;
            --green: #657d40;
            --white: #ffffff;
            --muted: #747873;
            --line: #dedbd3;
            --line-dark: rgba(255,255,255,.18);
            --shadow: 0 18px 48px rgba(35,31,24,.09);
            --shadow-sm: 0 8px 24px rgba(35,31,24,.07);
            --radius: 18px;
            --radius-sm: 11px;
            --container: 1200px;
            --ease: .25s ease;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; display: block; }
        button, a { -webkit-tap-highlight-color: transparent; }
        button { font: inherit; }
        p, h1, h2, h3, h4, ul, ol { margin-top: 0; }
        h1, h2, h3, h4 { line-height: 1.25; letter-spacing: -.035em; }
        ul, ol { padding: 0; list-style: none; }
        :focus-visible { outline: 3px solid rgba(237,107,58,.45); outline-offset: 4px; }

        .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
        .section { padding: 96px 0; }
        .section-alt { background: var(--warm); }
        .section-dark { background: var(--ink); color: var(--white); }
        .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 42px; }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--orange-dark);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .16em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 4px; background: var(--orange); }
        .section-dark .eyebrow { color: var(--lime); }
        .section-title { margin-bottom: 12px; font-size: clamp(30px, 4vw, 48px); }
        .section-desc { max-width: 630px; color: var(--muted); margin-bottom: 0; }
        .section-dark .section-desc { color: #b9beb7; }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 30;
            background: rgba(251,250,247,.92);
            border-bottom: 1px solid rgba(222,219,211,.8);
            backdrop-filter: blur(16px);
        }
        .nav-wrap { height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
        .brand { display: inline-flex; align-items: center; gap: 12px; min-width: 220px; }
        .brand-mark {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            background: var(--ink);
            color: var(--lime);
            border-radius: 12px 12px 12px 4px;
            font-size: 15px;
            font-weight: 900;
            letter-spacing: -.08em;
        }
        .brand-copy { display: grid; line-height: 1.15; }
        .brand-copy strong { font-size: 19px; letter-spacing: -.04em; }
        .brand-copy span { color: var(--muted); font-size: 11px; margin-top: 4px; }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a {
            position: relative;
            padding: 9px 13px;
            color: var(--ink-soft);
            font-size: 14px;
            font-weight: 700;
            border-radius: 8px;
            transition: var(--ease);
        }
        .nav-links a:hover, .nav-links a.active { color: var(--orange-dark); background: #f7e9df; }
        .nav-links a.active::after { content: ""; position: absolute; height: 3px; width: 18px; left: 13px; bottom: 3px; border-radius: 4px; background: var(--orange); }
        .nav-cta { white-space: nowrap; }
        .menu-toggle { display: none; border: 0; background: transparent; cursor: pointer; padding: 9px; }
        .menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--ink); }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 46px;
            padding: 11px 20px;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 800;
            cursor: pointer;
            transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
        }
        .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(35,31,24,.12); }
        .btn-primary { background: var(--orange); color: var(--white); }
        .btn-primary:hover { background: var(--orange-dark); }
        .btn-dark { background: var(--ink); color: var(--white); }
        .btn-dark:hover { background: #2b2f2b; }
        .btn-outline { border-color: var(--line); color: var(--ink); background: transparent; }
        .btn-outline:hover { border-color: var(--orange); color: var(--orange-dark); background: #fff8f2; }
        .btn-light { background: var(--white); color: var(--ink); }
        .btn-light:hover { background: var(--lime); }

        .hero { padding: 86px 0 74px; background: var(--paper); overflow: hidden; }
        .hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 72px; }
        .hero h1 { max-width: 680px; margin-bottom: 22px; font-size: clamp(42px, 6vw, 76px); font-weight: 900; }
        .hero h1 em { color: var(--orange); font-style: normal; }
        .hero-text { max-width: 600px; color: var(--muted); font-size: 18px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 34px; }
        .hero-note { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }
        .status-dot { width: 9px; height: 9px; background: var(--lime); border-radius: 50%; box-shadow: 0 0 0 5px rgba(183,214,107,.22); }

        .hero-board { position: relative; min-height: 420px; }
        .board-main {
            position: absolute;
            inset: 20px 28px 34px 0;
            padding: 30px;
            background: var(--ink);
            color: var(--white);
            border-radius: 24px 24px 24px 5px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .board-main::after { content: ""; position: absolute; right: -80px; bottom: -110px; width: 280px; height: 280px; border: 38px solid var(--orange); border-radius: 50%; opacity: .85; }
        .board-top { display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 1; }
        .board-label { color: var(--lime); font-size: 12px; letter-spacing: .12em; font-weight: 800; }
        .board-number { font-size: 13px; color: #aeb5ad; }
        .board-main h2 { max-width: 310px; margin: 68px 0 20px; font-size: 38px; }
        .board-main p { max-width: 285px; color: #adb2ac; font-size: 14px; }
        .board-meta { position: absolute; left: 30px; bottom: 29px; z-index: 1; color: #d8ddd5; font-size: 13px; }
        .board-side { position: absolute; right: 0; top: 0; width: 185px; padding: 20px; background: var(--white); color: var(--ink); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-sm); }
        .board-side .mini-tag { color: var(--orange-dark); font-size: 11px; font-weight: 900; }
        .board-side h3 { margin: 24px 0 12px; font-size: 20px; }
        .board-side p { color: var(--muted); font-size: 12px; line-height: 1.6; }
        .board-side .bar { height: 7px; margin-top: 22px; border-radius: 5px; background: var(--warm-deep); overflow: hidden; }
        .board-side .bar::before { content: ""; display: block; width: 72%; height: 100%; background: var(--orange); }
        .board-stamp { position: absolute; right: 42px; bottom: 4px; z-index: 2; display: grid; place-items: center; width: 78px; height: 78px; background: var(--lime); color: var(--ink); border-radius: 50%; transform: rotate(9deg); font-size: 13px; font-weight: 900; text-align: center; line-height: 1.2; }

        .quick-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr 1.15fr; gap: 12px; }
        .quick-item { min-height: 126px; padding: 22px; background: var(--white); border: 1px solid var(--line); border-radius: 15px; transition: var(--ease); }
        .quick-item:first-child { background: var(--orange); color: var(--white); border-color: var(--orange); }
        .quick-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
        .quick-item strong { display: block; margin-bottom: 12px; font-size: 17px; }
        .quick-item span { display: flex; justify-content: space-between; align-items: end; color: var(--muted); font-size: 12px; line-height: 1.45; }
        .quick-item:first-child span { color: #ffe8dc; }

        .feature-layout { display: grid; grid-template-columns: 1.38fr .82fr; gap: 18px; }
        .feature-card { position: relative; min-height: 365px; padding: 30px; display: flex; flex-direction: column; justify-content: end; background: var(--ink); color: var(--white); border-radius: 20px 20px 5px 20px; overflow: hidden; }
        .feature-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(145deg, transparent 30%, rgba(237,107,58,.8)); opacity: .65; }
        .feature-card > * { position: relative; z-index: 1; }
        .feature-card h3 { max-width: 540px; margin: 13px 0 10px; font-size: 32px; }
        .feature-card p { max-width: 520px; color: #d0d4ce; margin-bottom: 18px; }
        .feature-stack { display: grid; gap: 18px; }
        .activity-card { padding: 25px; background: var(--white); border: 1px solid var(--line); border-radius: 17px; }
        .activity-card:nth-child(2) { background: #e6efcc; border-color: #d5e3ac; }
        .badge { display: inline-flex; padding: 5px 9px; border-radius: 5px; background: #f8e3d7; color: var(--orange-dark); font-size: 11px; font-weight: 900; }
        .badge.green { background: #d7e8b1; color: #4e682d; }
        .badge.gray { background: #ecece8; color: #6e736b; }
        .activity-card h3 { margin: 28px 0 8px; font-size: 21px; }
        .activity-card p { color: var(--muted); font-size: 13px; margin-bottom: 15px; }
        .card-link { display: inline-flex; gap: 8px; color: var(--orange-dark); font-size: 13px; font-weight: 800; }
        .card-link::after { content: "↗"; transition: var(--ease); }
        .card-link:hover::after { transform: translate(3px,-3px); }

        .calendar { display: grid; grid-template-columns: 220px 1fr; gap: 54px; }
        .calendar-intro { padding-right: 24px; border-right: 1px solid var(--line); }
        .calendar-intro .big-month { margin: 20px 0 8px; color: var(--orange); font-size: 62px; font-weight: 900; line-height: 1; }
        .calendar-intro p { color: var(--muted); font-size: 14px; }
        .timeline { display: grid; gap: 0; }
        .timeline-item { display: grid; grid-template-columns: 102px 1fr auto; align-items: center; gap: 25px; padding: 20px 0; border-bottom: 1px solid var(--line); }
        .timeline-item:first-child { padding-top: 0; }
        .timeline-date { color: var(--orange-dark); font-size: 14px; font-weight: 900; }
        .timeline-item h3 { margin: 0 0 4px; font-size: 18px; }
        .timeline-item p { margin: 0; color: var(--muted); font-size: 13px; }

        .news-layout { display: grid; grid-template-columns: .88fr 1.12fr; gap: 52px; align-items: start; }
        .news-feature { padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
        .news-feature .news-index { color: var(--orange); font-size: 58px; font-weight: 900; line-height: 1; }
        .news-feature h3 { margin: 30px 0 12px; font-size: 28px; }
        .news-feature p { color: var(--muted); }
        .news-list { border-top: 1px solid var(--line); }
        .news-item { display: grid; grid-template-columns: 82px 1fr auto; align-items: center; gap: 20px; padding: 19px 0; border-bottom: 1px solid var(--line); }
        .news-date { color: var(--muted); font-size: 12px; line-height: 1.45; }
        .news-item h3 { margin: 0 0 3px; font-size: 17px; }
        .news-item p { max-width: 480px; margin: 0; color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .news-category { color: var(--orange-dark); font-size: 11px; font-weight: 800; }
        .empty-state { padding: 40px 20px; color: var(--muted); text-align: center; background: var(--white); border: 1px dashed var(--line); border-radius: 15px; }

        .download-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .download-panel h2 { max-width: 500px; font-size: clamp(32px, 4vw, 52px); margin-bottom: 16px; }
        .download-panel p { max-width: 510px; color: #b9beb7; }
        .download-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 18px; }
        .download-meta { display: flex; gap: 18px; color: #9da49c; font-size: 12px; }
        .app-visual { min-height: 300px; display: flex; justify-content: center; align-items: center; gap: 18px; }
        .device { width: 145px; height: 270px; padding: 10px; background: #2d322d; border: 2px solid #596059; border-radius: 24px; box-shadow: 0 22px 40px rgba(0,0,0,.25); transform: rotate(-7deg); }
        .device:nth-child(2) { width: 166px; height: 305px; background: var(--orange); border-color: #ffac8c; transform: rotate(5deg); z-index: 1; }
        .screen { height: 100%; padding: 16px 11px; background: var(--paper); border-radius: 16px; color: var(--ink); }
        .screen-top { height: 7px; width: 48px; margin: 0 auto 22px; background: var(--ink); border-radius: 8px; }
        .screen-label { color: var(--orange-dark); font-size: 9px; font-weight: 900; }
        .screen h4 { margin: 13px 0 17px; font-size: 16px; }
        .screen-line { height: 9px; margin: 9px 0; background: #e4e2db; border-radius: 3px; }
        .screen-line.short { width: 60%; }
        .screen-button { height: 28px; margin-top: 22px; background: var(--ink); border-radius: 7px; }

        .preview-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
        .preview-card { min-height: 220px; padding: 24px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; }
        .preview-card:nth-child(2) { margin-top: 28px; background: #f7e6dc; }
        .preview-card:nth-child(3) { background: #e8efda; }
        .preview-no { color: var(--orange); font-size: 12px; font-weight: 900; }
        .preview-card h3 { margin: 46px 0 10px; font-size: 22px; }
        .preview-card p { margin: 0; color: var(--muted); font-size: 13px; }

        .topic-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
        .topic-main, .topic-list { border-radius: 18px; overflow: hidden; }
        .topic-main { min-height: 300px; padding: 30px; display: flex; flex-direction: column; justify-content: end; background: var(--orange); color: var(--white); }
        .topic-main h3 { max-width: 500px; margin: 24px 0 10px; font-size: 34px; }
        .topic-main p { color: #ffe6d9; max-width: 480px; margin: 0; }
        .topic-list { background: var(--white); border: 1px solid var(--line); }
        .topic-list a { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px; border-bottom: 1px solid var(--line); transition: var(--ease); }
        .topic-list a:last-child { border-bottom: 0; }
        .topic-list a:hover { background: #fff5ee; padding-left: 29px; }
        .topic-list strong { display: block; font-size: 18px; }
        .topic-list small { color: var(--muted); font-size: 12px; }

        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
        .step { position: relative; padding: 28px 28px 10px 0; border-bottom: 1px solid var(--line); }
        .step:not(:last-child)::after { content: "→"; position: absolute; top: 27px; right: 22px; color: var(--orange); font-size: 22px; }
        .step-number { color: var(--orange); font-size: 14px; font-weight: 900; }
        .step h3 { margin: 25px 0 9px; font-size: 19px; }
        .step p { color: var(--muted); font-size: 13px; margin: 0; padding-right: 20px; }

        .rights-bar { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); align-items: center; gap: 20px; padding: 28px; background: var(--white); border: 1px solid var(--line); border-radius: 17px; }
        .rights-lead strong { display: block; font-size: 20px; }
        .rights-lead span, .right-item span { color: var(--muted); font-size: 12px; }
        .right-item { padding-left: 20px; border-left: 1px solid var(--line); }
        .right-item strong { display: block; margin-bottom: 3px; font-size: 15px; }

        .security-box { display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center; padding: 24px 28px; border: 1px solid #d4dfb5; background: #eff5df; border-radius: 16px; }
        .security-icon { display: grid; place-items: center; width: 44px; height: 44px; background: var(--lime); border-radius: 12px; font-weight: 900; }
        .security-box h3 { margin: 0 0 4px; font-size: 18px; }
        .security-box p { margin: 0; color: #586649; font-size: 13px; }

        .updates { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .update-item { display: grid; grid-template-columns: 74px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line-dark); }
        .update-version { color: var(--lime); font-weight: 900; font-size: 13px; }
        .update-item h3 { margin: 0 0 6px; font-size: 18px; }
        .update-item p { margin: 0; color: #adb3ab; font-size: 13px; }

        .faq-wrap { max-width: 900px; }
        .faq-item { border-top: 1px solid var(--line); }
        .faq-item:last-child { border-bottom: 1px solid var(--line); }
        .faq-item summary { padding: 22px 4px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; font-size: 17px; font-weight: 800; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: "+"; color: var(--orange); font-size: 25px; font-weight: 400; line-height: 1; }
        .faq-item[open] summary::after { content: "−"; }
        .faq-answer { max-width: 760px; padding: 0 45px 22px 4px; color: var(--muted); font-size: 14px; }

        .closing { padding: 70px 0; background: var(--orange); color: var(--white); }
        .closing-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
        .closing h2 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 44px); }
        .closing p { margin: 0; color: #ffe8dd; }
        .closing-actions { display: flex; flex-wrap: wrap; gap: 10px; flex-shrink: 0; }
        .closing .btn-dark:hover { background: #30352f; }
        .closing .btn-outline { color: var(--white); border-color: rgba(255,255,255,.5); }
        .closing .btn-outline:hover { color: var(--ink); background: var(--white); }

        .site-footer { padding: 58px 0 24px; background: var(--ink); color: var(--white); }
        .footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 32px; padding-bottom: 45px; }
        .footer-brand p { max-width: 260px; color: #9da49c; font-size: 13px; }
        .footer-title { margin: 5px 0 17px; color: var(--lime); font-size: 13px; font-weight: 800; }
        .footer-links { display: grid; gap: 9px; }
        .footer-links a { color: #b8beb6; font-size: 13px; transition: var(--ease); }
        .footer-links a:hover { color: var(--orange); }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid var(--line-dark); color: #7d847b; font-size: 12px; }

        @media (max-width: 1050px) {
            .nav-links { gap: 0; }
            .nav-links a { padding-left: 9px; padding-right: 9px; font-size: 13px; }
            .hero-grid { gap: 35px; }
            .quick-grid { grid-template-columns: repeat(3, 1fr); }
            .quick-item:first-child { grid-column: span 2; }
            .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
        }
        @media (max-width: 800px) {
            .section { padding: 70px 0; }
            .nav-cta { display: none; }
            .nav-links {
                position: absolute;
                left: 24px;
                right: 24px;
                top: 70px;
                display: none;
                padding: 10px;
                background: var(--white);
                border: 1px solid var(--line);
                border-radius: 14px;
                box-shadow: var(--shadow);
            }
            .nav-links.open { display: grid; }
            .nav-links a { padding: 13px 14px; }
            .menu-toggle { display: block; }
            .hero { padding-top: 62px; }
            .hero-grid, .download-panel, .news-layout, .topic-layout { grid-template-columns: 1fr; }
            .hero-board { min-height: 380px; margin-top: 15px; }
            .calendar { grid-template-columns: 1fr; gap: 30px; }
            .calendar-intro { padding: 0 0 22px; border-right: 0; border-bottom: 1px solid var(--line); }
            .calendar-intro .big-month { font-size: 50px; }
            .rights-bar { grid-template-columns: 1fr 1fr; }
            .rights-lead { grid-column: span 2; }
            .right-item:nth-child(2) { border-left: 0; }
            .updates { grid-template-columns: 1fr; }
            .closing-inner { align-items: start; flex-direction: column; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .footer-brand { grid-column: span 2; }
        }
        @media (max-width: 560px) {
            .container { width: min(100% - 32px, var(--container)); }
            .nav-wrap { height: 70px; }
            .brand { min-width: 0; }
            .brand-copy strong { font-size: 17px; }
            .brand-copy span { display: none; }
            .hero h1 { font-size: 43px; }
            .hero-text { font-size: 16px; }
            .hero-actions, .download-actions { display: grid; }
            .hero-actions .btn, .download-actions .btn { width: 100%; }
            .hero-board { min-height: 340px; }
            .board-main { inset: 12px 12px 25px 0; padding: 23px; }
            .board-main h2 { margin-top: 55px; font-size: 29px; }
            .board-side { width: 140px; padding: 15px; }
            .board-side h3 { font-size: 16px; margin-top: 18px; }
            .board-stamp { right: 18px; bottom: 0; width: 63px; height: 63px; font-size: 11px; }
            .quick-grid { grid-template-columns: 1fr 1fr; }
            .quick-item:first-child { grid-column: span 2; }
            .section-head { display: block; margin-bottom: 28px; }
            .feature-card { min-height: 310px; padding: 23px; }
            .feature-card h3 { font-size: 27px; }
            .timeline-item { grid-template-columns: 70px 1fr; gap: 14px; }
            .timeline-item .badge { grid-column: 2; justify-self: start; }
            .news-item { grid-template-columns: 62px 1fr; gap: 12px; }
            .news-item .card-link { grid-column: 2; }
            .news-item p { white-space: normal; }
            .preview-strip { display: flex; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory; }
            .preview-card { min-width: 255px; scroll-snap-align: start; }
            .preview-card:nth-child(2) { margin-top: 0; }
            .steps { grid-template-columns: 1fr 1fr; }
            .step { min-height: 170px; padding-right: 14px; }
            .step:not(:last-child)::after { display: none; }
            .rights-bar { grid-template-columns: 1fr; }
            .rights-lead { grid-column: auto; }
            .right-item { padding: 14px 0 0; border-left: 0; border-top: 1px solid var(--line); }
            .security-box { grid-template-columns: auto 1fr; padding: 20px; }
            .security-box .btn { grid-column: span 2; width: 100%; }
            .app-visual { min-height: 260px; gap: 8px; }
            .device { width: 116px; height: 222px; }
            .device:nth-child(2) { width: 135px; height: 255px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 16px; }
            .footer-brand { grid-column: span 2; }
            .footer-bottom { display: block; }
            .footer-bottom span { display: block; margin-top: 8px; }
        }

/* roulang page: article */
:root{
            --ink:#171817;
            --ink-soft:#343735;
            --paper:#fbfaf7;
            --warm:#f1eee8;
            --warm-deep:#e5e0d6;
            --orange:#ed6b3a;
            --orange-dark:#c84e27;
            --lime:#b7d66b;
            --green:#657d40;
            --white:#fff;
            --muted:#747873;
            --line:#dedbd3;
            --line-dark:rgba(255,255,255,.18);
            --shadow:0 18px 48px rgba(35,31,24,.09);
            --shadow-sm:0 8px 24px rgba(35,31,24,.07);
            --radius:18px;
            --radius-sm:11px;
            --container:1200px;
            --ease:.25s ease;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            font-size:16px;
            line-height:1.75;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit}
        button,a{-webkit-tap-highlight-color:transparent}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .section{padding:92px 0}
        .section-alt{background:var(--warm)}
        .section-dark{background:var(--ink);color:var(--white)}
        .eyebrow{
            display:inline-flex;align-items:center;gap:9px;
            color:var(--orange-dark);font-size:12px;font-weight:800;
            letter-spacing:.15em;margin-bottom:14px
        }
        .eyebrow:before{content:"";width:24px;height:3px;border-radius:5px;background:var(--orange)}
        .section-dark .eyebrow{color:var(--lime)}
        .section-title{margin:0 0 12px;font-size:clamp(30px,4vw,48px);line-height:1.18;letter-spacing:-.04em}
        .section-desc{max-width:660px;color:var(--muted);margin:0}
        .site-header{
            position:sticky;top:0;z-index:30;
            background:rgba(251,250,247,.93);
            border-bottom:1px solid rgba(222,219,211,.8);
            backdrop-filter:blur(16px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;min-width:220px}
        .brand-mark{
            width:42px;height:42px;display:grid;place-items:center;
            background:var(--ink);color:var(--lime);border-radius:12px 12px 12px 4px;
            font-size:15px;font-weight:900;letter-spacing:-.08em
        }
        .brand-copy{display:grid;line-height:1.15}
        .brand-copy strong{font-size:19px;letter-spacing:-.04em}
        .brand-copy span{color:var(--muted);font-size:11px;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{
            position:relative;padding:9px 13px;color:var(--ink-soft);
            font-size:14px;font-weight:700;border-radius:8px;transition:var(--ease)
        }
        .nav-links a:hover,.nav-links a.active{color:var(--orange-dark);background:#f7e9df}
        .nav-links a.active:after{
            content:"";position:absolute;height:3px;width:18px;left:13px;bottom:3px;
            border-radius:4px;background:var(--orange)
        }
        .nav-cta{white-space:nowrap}
        .menu-toggle{display:none;border:0;background:transparent;cursor:pointer;padding:9px}
        .menu-toggle span{display:block;width:24px;height:2px;margin:5px 0;background:var(--ink)}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:10px;
            min-height:46px;padding:11px 20px;border:1px solid transparent;
            border-radius:var(--radius-sm);font-size:14px;font-weight:800;cursor:pointer;
            transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease)
        }
        .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(35,31,24,.12)}
        .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(237,107,58,.35);outline-offset:3px}
        .btn-primary{background:var(--orange);color:var(--white)}
        .btn-primary:hover{background:var(--orange-dark)}
        .btn-dark{background:var(--ink);color:var(--white)}
        .btn-dark:hover{background:#2b2f2b}
        .btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
        .btn-outline:hover{border-color:var(--orange);color:var(--orange-dark);background:#fff8f2}
        .btn-light{background:var(--white);color:var(--ink)}
        .btn-light:hover{background:var(--lime)}
        .article-hero{padding:72px 0 64px;background:var(--warm);border-bottom:1px solid var(--line)}
        .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:30px}
        .crumbs a:hover{color:var(--orange-dark)}
        .crumbs .slash{color:#aaa59b}
        .article-heading{max-width:900px}
        .article-heading h1{
            margin:0 0 24px;font-size:clamp(36px,5.4vw,68px);
            line-height:1.18;letter-spacing:-.055em;font-weight:900
        }
        .article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px;color:var(--muted);font-size:14px}
        .meta-tag{display:inline-flex;align-items:center;gap:7px;color:var(--orange-dark);font-weight:800}
        .meta-tag:before{content:"";width:7px;height:7px;background:var(--orange);border-radius:50%}
        .article-layout{display:grid;grid-template-columns:minmax(0,790px) 290px;gap:74px;align-items:start}
        .article-body{
            min-width:0;background:var(--white);border:1px solid var(--line);
            border-radius:var(--radius);padding:48px 54px;box-shadow:var(--shadow-sm)
        }
        .article-body h2{font-size:30px;line-height:1.3;margin:38px 0 16px;letter-spacing:-.03em}
        .article-body h3{font-size:23px;line-height:1.4;margin:30px 0 12px}
        .article-body p{margin:0 0 22px;color:#454944;line-height:2}
        .article-body ul,.article-body ol{padding-left:25px;margin:18px 0 25px;color:#454944}
        .article-body li{padding-left:6px;margin:8px 0}
        .article-body blockquote{
            margin:30px 0;padding:20px 24px;border-left:4px solid var(--orange);
            background:#fff5ee;color:var(--ink-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0
        }
        .article-body img{margin:28px auto;border-radius:12px}
        .article-body table{width:100%;margin:25px 0;border-collapse:collapse;overflow:hidden}
        .article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left}
        .article-body th{background:var(--warm);font-weight:800}
        .article-empty{text-align:center;padding:72px 20px;color:var(--muted)}
        .empty-icon{width:58px;height:58px;display:grid;place-items:center;margin:0 auto 18px;background:#fff0e7;color:var(--orange-dark);border-radius:18px;font-size:25px}
        .article-tools{position:sticky;top:106px}
        .tool-card{padding:24px;background:var(--ink);color:var(--white);border-radius:var(--radius);box-shadow:var(--shadow)}
        .tool-card h2{font-size:20px;margin:0 0 10px}
        .tool-card p{color:#b9beb7;font-size:14px;line-height:1.75;margin:0 0 20px}
        .tool-card .btn{width:100%}
        .tool-list{margin-top:20px;padding:0;list-style:none}
        .tool-list li{border-top:1px solid var(--line-dark);padding:13px 0;color:#d9ddd6;font-size:14px}
        .tool-list a{transition:color var(--ease)}
        .tool-list a:hover{color:var(--lime)}
        .reading-note{margin-top:20px;padding:22px;background:#f6f3ed;border:1px solid var(--line);border-radius:var(--radius-sm)}
        .reading-note strong{display:block;margin-bottom:6px}
        .reading-note p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
        .article-bottom{padding-top:48px;margin-top:48px;border-top:1px solid var(--line)}
        .article-bottom h2{font-size:25px;margin:0 0 20px}
        .bottom-actions{display:flex;flex-wrap:wrap;gap:12px}
        .support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .support-card{padding:27px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease)}
        .support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#d3a58e}
        .support-card .number{color:var(--orange);font-size:13px;font-weight:900;margin-bottom:12px}
        .support-card h3{font-size:20px;margin:0 0 8px}
        .support-card p{margin:0;color:var(--muted);font-size:14px}
        .faq-list{max-width:850px;margin:0 auto}
        .faq-item{border-top:1px solid var(--line)}
        .faq-item:last-child{border-bottom:1px solid var(--line)}
        .faq-question{
            width:100%;display:flex;justify-content:space-between;gap:20px;
            padding:22px 0;border:0;background:transparent;color:var(--ink);
            text-align:left;font-weight:800;cursor:pointer
        }
        .faq-question span:last-child{color:var(--orange);font-size:24px;line-height:1;transition:transform var(--ease)}
        .faq-answer{display:none;padding:0 46px 22px 0;color:var(--muted);font-size:15px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta-band{padding:48px 0;background:var(--orange);color:var(--white)}
        .cta-flex{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-band h2{margin:0 0 8px;font-size:clamp(26px,3vw,38px);letter-spacing:-.04em}
        .cta-band p{margin:0;color:#fff0e9}
        .site-footer{padding:62px 0 24px;background:var(--ink);color:var(--white)}
        .footer-grid{display:grid;grid-template-columns:1.55fr repeat(4,1fr);gap:34px}
        .footer-brand p{max-width:270px;color:#aeb4ac;font-size:14px}
        .footer-title{margin-bottom:15px;color:var(--lime);font-size:13px;font-weight:800}
        .footer-links{display:grid;gap:9px}
        .footer-links a{color:#b9beb7;font-size:14px;transition:color var(--ease)}
        .footer-links a:hover{color:var(--white)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;
            padding-top:25px;margin-top:45px;border-top:1px solid var(--line-dark);
            color:#899088;font-size:12px
        }
        @media(max-width:1050px){
            .nav-links{gap:0}
            .nav-links a{padding-left:9px;padding-right:9px;font-size:13px}
            .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:38px}
            .footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
        }
        @media(max-width:800px){
            .container{width:min(var(--container),calc(100% - 36px))}
            .nav-wrap{height:70px}
            .brand{min-width:auto}
            .menu-toggle{display:block}
            .nav-cta{display:none}
            .nav-links{
                display:none;position:absolute;left:18px;right:18px;top:78px;
                padding:10px;background:var(--paper);border:1px solid var(--line);
                border-radius:14px;box-shadow:var(--shadow)
            }
            .nav-links.open{display:grid}
            .nav-links a{padding:13px 14px}
            .nav-links a.active:after{left:14px;bottom:6px}
            .article-hero{padding:52px 0 46px}
            .article-layout{display:block}
            .article-tools{position:static;margin-top:28px}
            .support-grid{grid-template-columns:1fr}
            .cta-flex{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
            .footer-brand{grid-column:1/-1}
        }
        @media(max-width:520px){
            .container{width:calc(100% - 30px)}
            .article-heading h1{font-size:37px}
            .article-body{padding:29px 21px}
            .article-body h2{font-size:26px}
            .article-body h3{font-size:21px}
            .article-meta{gap:8px 15px;font-size:13px}
            .bottom-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
            .footer-bottom{display:grid;gap:8px}
        }

/* roulang page: category1 */
:root{
            --ink:#171817;--ink-soft:#343735;--paper:#fbfaf7;--warm:#f1eee8;
            --warm-deep:#e5e0d6;--orange:#ed6b3a;--orange-dark:#c84e27;
            --lime:#b7d66b;--green:#657d40;--white:#fff;--muted:#747873;
            --line:#dedbd3;--line-dark:rgba(255,255,255,.18);
            --shadow:0 18px 48px rgba(35,31,24,.09);--shadow-sm:0 8px 24px rgba(35,31,24,.07);
            --radius:18px;--radius-sm:11px;--container:1200px;--ease:.25s ease
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,a{-webkit-tap-highlight-color:transparent}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .section{padding:92px 0}
        .section-alt{background:var(--warm)}
        .section-dark{background:var(--ink);color:var(--white)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:40px}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange-dark);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:14px}
        .eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--orange)}
        .section-dark .eyebrow{color:var(--lime)}
        .section-title{margin:0 0 12px;font-size:clamp(30px,4vw,48px);line-height:1.2;font-weight:900;letter-spacing:-.04em}
        .section-desc{max-width:650px;color:var(--muted);margin:0}
        .section-dark .section-desc{color:#b9beb7}
        .site-header{position:sticky;top:0;z-index:30;background:rgba(251,250,247,.94);border-bottom:1px solid rgba(222,219,211,.8);backdrop-filter:blur(16px)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;min-width:220px}
        .brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--ink);color:var(--lime);border-radius:12px 12px 12px 4px;font-size:15px;font-weight:900;letter-spacing:-.08em}
        .brand-copy{display:grid;line-height:1.15}
        .brand-copy strong{font-size:19px;letter-spacing:-.04em}
        .brand-copy span{color:var(--muted);font-size:11px;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{position:relative;padding:9px 13px;color:var(--ink-soft);font-size:14px;font-weight:700;border-radius:8px;transition:var(--ease)}
        .nav-links a:hover,.nav-links a.active{color:var(--orange-dark);background:#f7e9df}
        .nav-links a.active:after{content:"";position:absolute;height:3px;width:18px;left:13px;bottom:3px;border-radius:4px;background:var(--orange)}
        .nav-cta{white-space:nowrap}
        .menu-toggle{display:none;border:0;background:transparent;cursor:pointer;padding:9px}
        .menu-toggle span{display:block;width:24px;height:2px;margin:5px 0;background:var(--ink)}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:11px 20px;border:1px solid transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:800;cursor:pointer;transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease)}
        .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(35,31,24,.12)}
        .btn-primary{background:var(--orange);color:#fff}.btn-primary:hover{background:var(--orange-dark)}
        .btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#2b2f2b}
        .btn-outline{border-color:var(--line);color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--orange);color:var(--orange-dark);background:#fff8f2}
        .btn-light{background:#fff;color:var(--ink)}.btn-light:hover{background:var(--lime)}
        .page-intro{padding:78px 0 70px;background:var(--warm);border-bottom:1px solid var(--line)}
        .breadcrumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
        .breadcrumbs a:hover{color:var(--orange-dark)}
        .breadcrumbs span{color:#aaa69d}
        .intro-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:60px;align-items:end}
        .page-intro h1{max-width:760px;margin:0 0 22px;font-size:clamp(42px,6vw,72px);line-height:1.1;font-weight:900;letter-spacing:-.06em}
        .page-intro h1 em{font-style:normal;color:var(--orange)}
        .intro-text{max-width:650px;color:var(--muted);font-size:18px}
        .status-card{padding:24px;background:var(--ink);color:#fff;border-radius:20px 20px 20px 5px;box-shadow:var(--shadow)}
        .status-card small{display:block;color:#b9beb7;font-size:12px;margin-bottom:8px}
        .status-line{display:flex;align-items:center;gap:10px;font-weight:800}
        .status-dot{width:10px;height:10px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 6px rgba(183,214,107,.12)}
        .entry-panels{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .entry-panel{padding:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:var(--ease)}
        .entry-panel:hover,.info-card:hover,.timeline-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
        .entry-panel.primary{background:var(--ink);color:#fff;min-height:250px}
        .entry-panel h2,.entry-panel h3{margin:0 0 12px;font-weight:900;letter-spacing:-.03em}
        .entry-panel h2{font-size:32px}.entry-panel h3{font-size:22px}
        .entry-panel p{color:var(--muted);margin:0 0 24px}.entry-panel.primary p{color:#c1c5be}
        .panel-tag,.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;background:#f7e9df;color:var(--orange-dark);font-size:12px;font-weight:800}
        .entry-panel.primary .panel-tag{background:rgba(237,107,58,.18);color:#ffad8b}
        .entry-actions{display:flex;flex-wrap:wrap;gap:10px}
        .info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .info-card{padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);transition:var(--ease)}
        .info-icon{width:42px;height:42px;display:grid;place-items:center;background:#f7e9df;color:var(--orange-dark);border-radius:12px;font-weight:900;margin-bottom:22px}
        .info-card h3{margin:0 0 8px;font-size:19px}.info-card p{margin:0;color:var(--muted);font-size:14px}
        .state-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
        .state{padding:9px 16px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px;font-weight:800;background:#fff}
        .state.current{background:var(--orange);border-color:var(--orange);color:#fff}
        .timeline{border-top:1px solid var(--line)}
        .timeline-item{display:grid;grid-template-columns:150px 1fr auto;gap:25px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line);transition:var(--ease)}
        .timeline-date{font-size:14px;font-weight:900;color:var(--orange-dark)}
        .timeline-item h3{margin:0 0 4px;font-size:19px}.timeline-item p{margin:0;color:var(--muted);font-size:14px}
        .arrow-link{font-weight:900;color:var(--orange-dark);font-size:14px;white-space:nowrap}
        .arrow-link:hover{color:var(--ink)}
        .split-block{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px;align-items:start}
        .number-list{display:grid;gap:16px}
        .number-row{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line-dark)}
        .number{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--orange);color:#fff;font-weight:900;font-size:13px}
        .number-row strong{display:block;margin-bottom:3px}.number-row span{color:#b9beb7;font-size:14px}
        .mobile-card{padding:34px;background:var(--ink);border-radius:22px 22px 22px 5px;color:#fff;display:flex;justify-content:space-between;gap:35px;align-items:center}
        .mobile-card h2{margin:0 0 10px;font-size:30px}.mobile-card p{color:#b9beb7;margin:0 0 22px}.device{width:145px;height:240px;border:7px solid #343735;border-radius:25px;background:#f1eee8;padding:15px;color:var(--ink);flex:none;box-shadow:0 14px 30px rgba(0,0,0,.25)}
        .device-top{height:8px;width:42px;border-radius:8px;background:var(--ink);margin:0 auto 20px}.device-bar{height:32px;background:var(--orange);border-radius:8px;margin-bottom:12px}.device-line{height:10px;background:#d8d4cb;border-radius:5px;margin:10px 0}.device-line.short{width:62%}
        .faq-list{max-width:850px;margin:0 auto}.faq-item{border-bottom:1px solid var(--line);background:#fff}.faq-item summary{list-style:none;cursor:pointer;padding:21px 24px;font-weight:800;display:flex;justify-content:space-between;gap:20px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--orange);font-size:22px;line-height:1}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 24px 22px;color:var(--muted);font-size:14px}
        .cta-band{padding:35px 40px;background:var(--orange);color:#fff;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-band h2{margin:0 0 6px;font-size:28px}.cta-band p{margin:0;color:#ffe3d8}
        .site-footer{padding:68px 0 24px;background:var(--ink);color:#fff}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:34px}.footer-brand p{color:#aeb3ac;max-width:260px;font-size:14px}.footer-title{font-size:14px;font-weight:900;margin-bottom:15px}.footer-links{display:grid;gap:8px}.footer-links a{color:#aeb3ac;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:var(--lime)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);margin-top:48px;padding-top:20px;color:#8d938b;font-size:12px}
        :focus-visible{outline:3px solid rgba(237,107,58,.4);outline-offset:3px}
        @media(max-width:1024px){.nav-links a{padding:8px 8px;font-size:13px}.nav-cta{display:none}.intro-grid,.split-block{grid-template-columns:1fr;gap:30px}.footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}}
        @media(max-width:767px){.container{width:min(var(--container),calc(100% - 32px))}.section{padding:64px 0}.nav-wrap{height:68px}.brand{min-width:0}.brand-copy strong{font-size:17px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.page-intro{padding:55px 0}.page-intro h1{font-size:45px}.intro-text{font-size:16px}.@media(max-width:767px){
            .entry-panels,.info-grid{grid-template-columns:1fr}
            .entry-panel.primary{min-height:auto}
            .timeline-item{grid-template-columns:1fr;gap:7px;padding:20px 0}
            .timeline-item .arrow-link{margin-top:5px}
            .mobile-card{align-items:flex-start;flex-direction:column;padding:28px 24px}
            .device{width:126px;height:205px}
            .cta-band{padding:28px 24px;align-items:flex-start;flex-direction:column}
            .cta-band .btn{width:100%}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
            .footer-brand{grid-column:1/-1}
            .footer-bottom{flex-direction:column;gap:8px;margin-top:35px}
        }
        @media(max-width:520px){
            .brand-copy span{font-size:10px}
            .page-intro h1{font-size:39px}
            .section-title{font-size:31px}
            .section-head{display:block;margin-bottom:28px}
            .entry-actions{flex-direction:column;align-items:stretch}
            .entry-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category2 */
:root{
            --ink:#171817;
            --ink-soft:#343735;
            --paper:#fbfaf7;
            --warm:#f1eee8;
            --warm-deep:#e5e0d6;
            --orange:#ed6b3a;
            --orange-dark:#c84e27;
            --lime:#b7d66b;
            --green:#657d40;
            --white:#fff;
            --muted:#747873;
            --line:#dedbd3;
            --line-dark:rgba(255,255,255,.18);
            --shadow:0 18px 48px rgba(35,31,24,.09);
            --shadow-sm:0 8px 24px rgba(35,31,24,.07);
            --radius:18px;
            --radius-sm:11px;
            --container:1200px;
            --ease:.25s ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            font-size:16px;
            line-height:1.75;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .section{padding:92px 0}
        .section-alt{background:var(--warm)}
        .section-dark{background:var(--ink);color:var(--white)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:38px}
        .eyebrow{
            display:inline-flex;align-items:center;gap:9px;
            color:var(--orange-dark);font-size:12px;font-weight:800;
            letter-spacing:.14em;margin-bottom:13px
        }
        .eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--orange)}
        .section-dark .eyebrow{color:var(--lime)}
        .section-title{margin:0 0 10px;font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.04em}
        .section-desc{max-width:640px;margin:0;color:var(--muted)}
        .section-dark .section-desc{color:#b9beb7}
        .site-header{
            position:sticky;top:0;z-index:30;
            background:rgba(251,250,247,.93);
            border-bottom:1px solid rgba(222,219,211,.8);
            backdrop-filter:blur(16px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;min-width:220px}
        .brand-mark{
            width:42px;height:42px;display:grid;place-items:center;
            background:var(--ink);color:var(--lime);border-radius:12px 12px 12px 4px;
            font-size:15px;font-weight:900;letter-spacing:-.08em
        }
        .brand-copy{display:grid;line-height:1.15}
        .brand-copy strong{font-size:19px;letter-spacing:-.04em}
        .brand-copy span{color:var(--muted);font-size:11px;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{
            position:relative;padding:9px 13px;color:var(--ink-soft);
            font-size:14px;font-weight:700;border-radius:8px;transition:var(--ease)
        }
        .nav-links a:hover,.nav-links a.active{color:var(--orange-dark);background:#f7e9df}
        .nav-links a.active:after{
            content:"";position:absolute;height:3px;width:18px;left:13px;bottom:3px;
            border-radius:4px;background:var(--orange)
        }
        .nav-cta{white-space:nowrap}
        .menu-toggle{display:none;border:0;background:transparent;cursor:pointer;padding:9px}
        .menu-toggle span{display:block;width:24px;height:2px;margin:5px 0;background:var(--ink)}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:10px;
            min-height:46px;padding:11px 20px;border:1px solid transparent;
            border-radius:var(--radius-sm);font-size:14px;font-weight:800;
            cursor:pointer;transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)
        }
        .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(35,31,24,.12)}
        .btn-primary{background:var(--orange);color:var(--white)}
        .btn-primary:hover{background:var(--orange-dark)}
        .btn-dark{background:var(--ink);color:var(--white)}
        .btn-dark:hover{background:#2b2f2b}
        .btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
        .btn-outline:hover{border-color:var(--orange);color:var(--orange-dark);background:#fff8f2}
        .btn-light{background:var(--white);color:var(--ink)}
        .btn-light:hover{background:var(--lime)}
        a:focus-visible,button:focus-visible{outline:3px solid rgba(237,107,58,.35);outline-offset:3px}
        .page-intro{padding:72px 0 68px;background:var(--warm);border-bottom:1px solid var(--line)}
        .crumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
        .crumbs a:hover{color:var(--orange-dark)}
        .intro-grid{display:grid;grid-template-columns:1fr 360px;gap:70px;align-items:end}
        .page-intro h1{margin:0 0 18px;max-width:760px;font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.06em}
        .page-intro h1 em{font-style:normal;color:var(--orange)}
        .intro-copy{max-width:650px;color:var(--muted);font-size:18px}
        .status-panel{padding:25px;background:var(--ink);color:var(--white);border-radius:22px 22px 5px 22px;box-shadow:var(--shadow)}
        .status-top{display:flex;justify-content:space-between;align-items:center;color:#c5c9c2;font-size:13px}
        .status-dot{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:700}
        .status-dot:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(183,214,107,.12)}
        .status-panel h2{margin:28px 0 7px;font-size:28px}
        .status-panel p{margin:0;color:#b9beb7;font-size:14px}
        .filter-bar{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:34px}
        .filter{padding:9px 16px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px;font-weight:700;background:var(--paper)}
        .filter.active,.filter:hover{border-color:var(--orange);background:#fff2e9;color:var(--orange-dark)}
        .event-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:26px}
        .event-card,.topic-card,.update-row,.access-card,.faq-item{
            background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
            box-shadow:var(--shadow-sm);transition:var(--ease)
        }
        .event-card:hover,.topic-card:hover,.access-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .event-feature{padding:34px;min-height:315px;position:relative;overflow:hidden;background:var(--ink);color:var(--white);border-radius:22px 22px 6px 22px}
        .event-feature:after{content:"";position:absolute;width:230px;height:230px;right:-80px;bottom:-105px;border:32px solid var(--orange);border-radius:50%;opacity:.9}
        .tag{display:inline-flex;padding:5px 10px;border-radius:5px;background:#f9d3c2;color:var(--orange-dark);font-size:12px;font-weight:800}
        .tag.green{background:#dce9b9;color:var(--green)}
        .tag.gray{background:#e7e5df;color:var(--muted)}
        .event-feature h3{max-width:470px;margin:48px 0 12px;font-size:30px;line-height:1.3}
        .event-feature p{max-width:470px;margin:0;color:#c6cac3}
        .event-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:#d4d7d1;font-size:13px}
        .event-list{display:grid;gap:14px}
        .event-small{padding:23px 25px;display:grid;grid-template-columns:74px 1fr;gap:18px;align-items:start}
        .date-box{font-size:25px;font-weight:900;line-height:1;color:var(--orange-dark)}
        .date-box small{display:block;margin-top:7px;color:var(--muted);font-size:11px;font-weight:700}
        .event-small h3{margin:0 0 7px;font-size:18px;line-height:1.4}
        .event-small p{margin:0;color:var(--muted);font-size:13px}
        .calendar-wrap{display:grid;grid-template-columns:230px 1fr;gap:46px;align-items:start}
        .calendar-label{font-size:64px;line-height:1;font-weight:900;letter-spacing:-.08em;color:var(--orange)}
        .calendar-label span{display:block;font-size:15px;letter-spacing:.08em;color:var(--muted);margin-top:12px}
        .timeline{border-left:2px solid var(--warm-deep);padding-left:28px;display:grid;gap:26px}
        .timeline-item{position:relative}
        .timeline-item:before{content:"";position:absolute;left:-36px;top:9px;width:13px;height:13px;border-radius:50%;background:var(--lime);border:3px solid var(--paper)}
        .timeline-item strong{display:block;font-size:18px}
        .timeline-item p{margin:5px 0 0;color:var(--muted);font-size:14px}
        .topic-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
        .topic-card{padding:28px;min-height:190px;position:relative;overflow:hidden}
        .topic-card.feature{background:#f7e9df;border-color:#f2c9b6}
        .topic-card h3{margin:24px 0 7px;font-size:24px}
        .topic-card p{margin:0;color:var(--muted);font-size:14px;max-width:410px}
        .topic-card small{position:absolute;right:23px;top:24px;color:var(--muted)}
        .updates{display:grid;gap:0}
        .update-row{display:grid;grid-template-columns:120px 120px 1fr auto;gap:22px;align-items:center;padding:19px 23px;border-radius:0;box-shadow:none;border-bottom:0}
        .update-row:first-child{border-radius:var(--radius) var(--radius) 0 0}
        .update-row:last-child{border-radius:0 0 var(--radius) var(--radius);border-bottom:1px solid var(--line)}
        .update-row+.update-row{border-top:1px solid var(--line)}
        .update-row time,.update-row p{color:var(--muted);font-size:13px;margin:0}
        .version{font-weight:900;color:var(--orange-dark)}
        .mobile-panel{display:grid;grid-template-columns:1fr 320px;gap:60px;align-items:center}
        .mobile-panel h2{font-size:42px;line-height:1.2;margin:0 0 15px}
        .mobile-panel p{color:#b9beb7;max-width:540px}
        .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
        .device{height:350px;width:190px;margin:auto;border:8px solid #3a3e39;border-radius:29px;background:#f7e9df;padding:13px;box-shadow:0 20px 35px rgba(0,0,0,.25);transform:rotate(5deg)}
        .device-top{height:8px;width:60px;background:#343735;border-radius:10px;margin:0 auto 24px}
        .device-mark{height:85px;border-radius:13px;background:var(--orange);display:grid;place-items:center;color:#fff;font-weight:900;font-size:24px}
        .device-line{height:12px;border-radius:5px;background:#fff;margin-top:15px}
        .device-line.short{width:62%}
        .faq-list{display:grid;gap:12px;max-width:820px}
        .faq-item{overflow:hidden}
        .faq-item summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";font-size:22px;color:var(--orange)}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 24px 21px;color:var(--muted);font-size:14px}
        .cta-band{padding:32px 38px;background:var(--orange);color:var(--white);border-radius:22px 22px 6px 22px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-band h2{margin:0;font-size:30px}
        .cta-band p{margin:5px 0 0;color:#ffe8dc}
        .site-footer{padding:62px 0 24px;background:var(--ink);color:#b9beb7}
        .footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px}
        .footer-brand .brand{color:var(--white)}
        .footer-brand p{max-width:270px;font-size:13px}
        .footer-title{margin-bottom:15px;color:#fff;font-size:14px;font-weight:800}
        .footer-links{display:grid;gap:8px;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:20px;border-top:1px solid var(--line-dark);font-size:12px;color:#858b83}
        @media(max-width:1024px){
            .nav-cta{display:none}.intro-grid,.mobile-panel{grid-template-columns:1fr 300px;gap:35px}
            .event-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
            .calendar-wrap{grid-template-columns:160px 1fr}
        }
        @media(max-width:767px){
            .container{width:min(100% - 32px,var(--container))}
            .section{padding:62px 0}.nav-wrap{height:68px}.brand{min-width:0}
            .menu-toggle{display:block}.nav-links{
                display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;
                flex-direction:column;align-items:stretch;background:var(--paper);
                border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)
            }
            .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.intro-grid,.mobile-panel,.calendar-wrap{grid-template-columns:1fr}
            .page-intro{padding:50px 0}.page-intro h1{font-size:48px}.intro-copy{font-size:16px}
            .status-panel{max-width:none}.section-head{display:block;margin-bottom:27px}.section-title{font-size:34px}
            .event-feature{min-height:350px;padding:25px}.event-feature h3{margin-top:42px;font-size:25px}
            .event-small{grid-template-columns:62px 1fr;padding:19px}.topic-grid{grid-template-columns:1fr}
            .topic-card h3{font-size:21px}.update-row{grid-template-columns:1fr 1fr;gap:7px 14px}
            .update-row p{grid-column:1/-1}.update-row .btn{grid-column:2;grid-row:1;justify-self:end}
            .mobile-panel h2{font-size:34px}.device{margin:20px auto 0}
            .cta-band{display:block;padding:27px}.cta-band h2{font-size:25px}.cta-band .btn{margin-top:20px;width:100%}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){.brand-copy strong{font-size:16px}.brand-copy span{font-size:10px}.page-intro h1{font-size:40px}.hero-actions,.download-actions{display:grid}.hero-actions .btn,.download-actions .btn{width:100%}.calendar-label{font-size:52px}.footer-grid{gap:25px 15px}}

/* roulang page: category3 */
:root{
            --ink:#171817;--ink-soft:#343735;--paper:#fbfaf7;--warm:#f1eee8;
            --warm-deep:#e5e0d6;--orange:#ed6b3a;--orange-dark:#c84e27;
            --lime:#b7d66b;--green:#657d40;--white:#fff;--muted:#747873;
            --line:#dedbd3;--line-dark:rgba(255,255,255,.18);
            --shadow:0 18px 48px rgba(35,31,24,.09);--shadow-sm:0 8px 24px rgba(35,31,24,.07);
            --radius:18px;--radius-sm:11px;--container:1200px;--ease:.25s ease
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,a{-webkit-tap-highlight-color:transparent}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .section{padding:92px 0}
        .section-alt{background:var(--warm)}
        .section-dark{background:var(--ink);color:var(--white)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:42px}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange-dark);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:14px}
        .eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--orange)}
        .section-dark .eyebrow{color:var(--lime)}
        .section-title{margin:0 0 12px;font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.045em;font-weight:900}
        .section-desc{max-width:650px;color:var(--muted);margin:0}
        .section-dark .section-desc{color:#b9beb7}
        .site-header{position:sticky;top:0;z-index:30;background:rgba(251,250,247,.93);border-bottom:1px solid rgba(222,219,211,.8);backdrop-filter:blur(16px)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;min-width:220px}
        .brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--ink);color:var(--lime);border-radius:12px 12px 12px 4px;font-size:15px;font-weight:900;letter-spacing:-.08em}
        .brand-copy{display:grid;line-height:1.15}
        .brand-copy strong{font-size:19px;letter-spacing:-.04em}
        .brand-copy span{color:var(--muted);font-size:11px;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{position:relative;padding:9px 13px;color:var(--ink-soft);font-size:14px;font-weight:700;border-radius:8px;transition:var(--ease)}
        .nav-links a:hover,.nav-links a.active{color:var(--orange-dark);background:#f7e9df}
        .nav-links a.active:after{content:"";position:absolute;height:3px;width:18px;left:13px;bottom:3px;border-radius:4px;background:var(--orange)}
        .nav-cta{white-space:nowrap}
        .menu-toggle{display:none;border:0;background:transparent;cursor:pointer;padding:9px}
        .menu-toggle span{display:block;width:24px;height:2px;margin:5px 0;background:var(--ink)}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:11px 20px;border:1px solid transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:800;cursor:pointer;transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease)}
        .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(35,31,24,.12)}
        .btn-primary{background:var(--orange);color:var(--white)}
        .btn-primary:hover{background:var(--orange-dark)}
        .btn-dark{background:var(--ink);color:var(--white)}
        .btn-dark:hover{background:#2b2f2b}
        .btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
        .btn-outline:hover{border-color:var(--orange);color:var(--orange-dark);background:#fff8f2}
        .btn-light{background:var(--white);color:var(--ink)}
        .btn-light:hover{background:var(--lime)}
        .page-intro{padding:78px 0 64px;background:var(--warm);border-bottom:1px solid var(--line)}
        .crumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:30px}
        .crumbs a:hover{color:var(--orange-dark)}
        .crumbs .current{color:var(--ink-soft);font-weight:700}
        .intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}
        .page-intro h1{font-size:clamp(42px,6vw,72px);line-height:1.08;letter-spacing:-.06em;margin:0 0 22px;font-weight:900}
        .page-intro h1 em{font-style:normal;color:var(--orange)}
        .intro-copy{max-width:660px;color:var(--muted);font-size:18px;margin:0}
        .status-card{background:var(--ink);color:var(--white);padding:26px;border-radius:22px 22px 6px 22px;box-shadow:var(--shadow)}
        .status-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}
        .status-label{font-size:12px;color:var(--lime);letter-spacing:.1em;font-weight:800}
        .status-dot{width:10px;height:10px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 6px rgba(183,214,107,.14)}
        .status-card strong{font-size:27px;display:block;margin-bottom:7px}
        .status-card p{margin:0;color:#b9beb7;font-size:14px}
        .entry-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
        .entry-card{background:var(--white);padding:25px;border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease)}
        .entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#efb49d}
        .entry-card .icon{width:42px;height:42px;display:grid;place-items:center;background:#f7e9df;color:var(--orange-dark);border-radius:12px;font-weight:900;margin-bottom:20px}
        .entry-card h3{font-size:20px;margin:0 0 7px}
        .entry-card p{font-size:14px;color:var(--muted);margin:0}
        .device-section{background:var(--paper)}
        .device-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
        .device-stage{min-height:420px;position:relative;background:#e8e1d6;border-radius:26px;padding:38px;overflow:hidden}
        .device-stage:after{content:"";position:absolute;width:230px;height:230px;border:32px solid var(--orange);border-radius:50%;right:-55px;bottom:-80px;opacity:.9}
        .phone{position:relative;z-index:1;width:210px;height:365px;margin:0 auto;background:#20221f;border:9px solid #101110;border-radius:30px;box-shadow:var(--shadow);padding:12px}
        .phone-screen{height:100%;border-radius:19px;background:#fbfaf7;padding:17px 13px;overflow:hidden}
        .phone-notch{width:62px;height:16px;margin:-17px auto 17px;background:#101110;border-radius:0 0 12px 12px}
        .mini-brand{font-weight:900;font-size:14px;margin:20px 0 22px}
        .mini-banner{height:87px;background:var(--ink);border-radius:13px;color:white;padding:14px;font-size:12px}
        .mini-banner b{display:block;font-size:17px;color:var(--lime);margin-top:7px}
        .mini-line{height:10px;background:#e8e4dc;border-radius:5px;margin-top:14px}
        .mini-line.short{width:65%}
        .device-copy h2{font-size:clamp(30px,4vw,48px);line-height:1.2;margin:0 0 18px;letter-spacing:-.05em}
        .device-copy p{color:var(--muted);margin:0 0 28px}
        .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:28px}
        .feature-item{padding:17px 18px;border-left:3px solid var(--lime);background:var(--warm)}
        .feature-item strong{display:block;font-size:15px}
        .feature-item span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
        .download-band{background:var(--ink);color:var(--white);padding:30px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:28px}
        .download-band h3{margin:0 0 5px;font-size:25px}
        .download-band p{margin:0;color:#b9beb7;font-size:14px}
        .download-actions{display:flex;gap:10px;flex-wrap:wrap}
        .download-actions .btn-outline{border-color:var(--line-dark);color:var(--white)}
        .download-actions .btn-outline:hover{background:#fff;color:var(--ink)}
        .platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .platform{padding:27px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;min-height:210px}
        .platform-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
        .platform h3{font-size:22px;margin:0}
        .platform-tag{font-size:11px;font-weight:800;color:var(--green);background:#edf4dc;padding:5px 9px;border-radius:6px}
        .platform p{font-size:14px;color:var(--muted);margin:0 0 22px}
        .platform .btn{margin-top:auto;align-self:flex-start}
        .screen-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .screen-card{background:var(--warm);padding:18px;border-radius:var(--radius);border:1px solid var(--line)}
        .screen-preview{height:190px;border-radius:13px;background:var(--ink);padding:18px;color:white;position:relative;overflow:hidden;margin-bottom:18px}
        .screen-preview:before{content:"C7";position:absolute;right:-12px;bottom:-30px;font-size:130px;font-weight:900;color:var(--orange);opacity:.75}
        .screen-preview small{color:var(--lime);font-weight:800}
        .screen-preview strong{display:block;font-size:21px;line-height:1.3;margin-top:35px;max-width:130px}
        .screen-card h3{font-size:18px;margin:0 0 5px}
        .screen-card p{color:var(--muted);font-size:14px;margin:0}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
        .step{padding:28px 25px 10px 0;border-right:1px solid var(--line);margin-right:25px}
        .step:last-child{border:0;margin:0}
        .step-num{font-size:38px;font-weight:900;color:var(--orange);line-height:1;margin-bottom:20px}
        .step h3{font-size:18px;margin:0 0 7px}
        .step p{font-size:14px;color:var(--muted);margin:0}
        .version-box{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .version-item{background:var(--white);padding:24px}
        .version-item span{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}
        .version-item strong{font-size:19px}
        .notice{display:flex;gap:18px;align-items:flex-start;padding:24px 26px;background:#f3f7e9;border:1px solid #d7e4b6;border-radius:var(--radius)}
        .notice-icon{width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-weight:900}
        .notice h3{margin:0 0 5px;font-size:18px}
        .notice p{margin:0;color:#59614d;font-size:14px}
        .faq-list{max-width:850px;margin:0 auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{cursor:pointer;list-style:none;padding:22px 38px 22px 0;font-weight:800;position:relative}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";position:absolute;right:4px;top:17px;font-size:25px;color:var(--orange)}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 38px 22px 0;color:var(--muted);font-size:15px}
        .closing{padding:70px 0}
        .closing-box{background:var(--orange);color:var(--white);padding:42px 48px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .closing-box h2{margin:0 0 8px;font-size:clamp(28px,4vw,44px);letter-spacing:-.05em}
        .closing-box p{margin:0;color:#fff0e8}
        .site-footer{padding:64px 0 22px;background:var(--ink);color:var(--white)}
        .footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:30px}
        .footer-brand p{color:#b9beb7;font-size:14px;max-width:250px}
        .footer-title{font-size:14px;font-weight:800;margin-bottom:17px;color:var(--lime)}
        .footer-links{display:grid;gap:9px}
        .footer-links a{color:#b9beb7;font-size:13px;transition:var(--ease)}
        .footer-links a:hover{color:var(--white);padding-left:3px}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);margin-top:44px;padding-top:20px;color:#8e958c;font-size:12px}
        :focus-visible{outline:3px solid rgba(237,107,58,.45);outline-offset:3px}
        @media(max-width:1024px){
            .intro-grid,.device-layout{grid-template-columns:1fr;gap:35px}
            .status-card{max-width:560px}
            .footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}
            .footer-brand{grid-row:span 2}
        }
        @media(max-width:767px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .section{padding:62px 0}
            .nav-wrap{height:68px}
            .brand{min-width:0}
            .brand-copy strong{font-size:17px}
            .menu-toggle{display:block}
            .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
            .nav-links.open{display:flex}
            .nav-links a{padding:13px 14px}
            .nav-cta{display:none}
            .page-intro{padding:55px 0 48px}
            .page-intro h1{font-size:46px}
            .intro-copy{font-size:16px}
            .entry-strip,.platforms,.screen-row{grid-template-columns:1fr}
            .device-stage{min-height:380px;padding:25px}
            .download-band,.closing-box{align-items:flex-start;flex-direction:column;padding:28px}
            .feature-list{grid-template-columns:1fr}
            .steps{grid-template-columns:1fr;border-top:0}
            .step{border-right:0;border-bottom:1px solid var(--line);padding:22px 0;margin:0}
            .version-box{grid-template-columns:1fr 1fr}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-brand{grid-column:1/-1;grid-row:auto}
            .footer-bottom{flex-direction:column;gap:6px}
        }
        @media(max-width:520px){
            .brand-copy span{font-size:10px}
            .brand-mark{width:38px;height:38px}
            .section-head{display:block;margin-bottom:28px}
            .section-title{font-size:32px}
            .version-box{grid-template-columns:1fr}
            .download-actions,.download-actions .btn{width:100%}
            .download-actions .btn{justify-content:center}
        }