/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #0891b2;
            --warning: #b45309;
            --canvas: #f7fafc;
            --surface: #ffffff;
            --surface-blue: #eff6ff;
            --text: #172033;
            --muted: #667085;
            --border: #e4eaf2;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 14px 38px rgba(51, 65, 85, .08), 0 2px 8px rgba(37, 99, 235, .04);
            --shadow-hover: 0 20px 48px rgba(51, 65, 85, .12), 0 4px 12px rgba(37, 99, 235, .08);
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; scroll-padding-top: 96px; }
        body {
            margin: 0;
            color: var(--text);
            background: var(--canvas);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            line-height: 1.75;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }
        body.menu-open { overflow: hidden; }
        a { color: inherit; text-decoration: none; }
        button, input, select, textarea { font: inherit; }
        button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
        button { border: 0; cursor: pointer; }
        img, svg { display: block; max-width: 100%; }
        ::selection { color: #fff; background: var(--primary); }

        .site-container {
            width: min(1220px, calc(100% - 64px));
            margin-inline: auto;
        }
        .section-space { padding: 92px 0; }
        .section-white { background: var(--surface); }
        .section-blue { background: #f0f6ff; }
        .section-heading {
            max-width: 760px;
            margin-bottom: 38px;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .04em;
        }
        .section-kicker::before {
            width: 24px;
            height: 3px;
            border-radius: 999px;
            background: var(--primary);
            content: "";
        }
        .section-heading h2 {
            margin: 0;
            font-size: clamp(28px, 3vw, 36px);
            line-height: 1.24;
            letter-spacing: -.02em;
        }
        .section-heading p {
            margin: 14px 0 0;
            color: var(--muted);
            font-size: 17px;
        }

        .skip-link {
            position: fixed;
            z-index: 100;
            top: 10px;
            left: 10px;
            padding: 10px 16px;
            color: #fff;
            background: var(--primary-dark);
            border-radius: 10px;
            transform: translateY(-150%);
        }
        .skip-link:focus { transform: translateY(0); }

        .site-header {
            position: sticky;
            z-index: 50;
            top: 0;
            border-bottom: 1px solid rgba(226, 232, 240, .95);
            background: rgba(255, 255, 255, .97);
            transition: box-shadow .2s ease;
        }
        .site-header.scrolled { box-shadow: 0 8px 24px rgba(15, 23, 42, .07); }
        .nav-shell {
            min-height: 78px;
            display: grid;
            grid-template-columns: minmax(235px, .78fr) minmax(320px, 1.65fr) auto;
            align-items: center;
            gap: 24px;
        }
        .brand {
            min-width: 0;
            display: inline-flex;
            align-items: center;
            gap: 11px;
            font-weight: 800;
            line-height: 1.25;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            flex: 0 0 auto;
            display: grid;
            place-items: center;
            color: #fff;
            background: var(--primary);
            border-radius: 13px;
            box-shadow: 0 8px 18px rgba(37, 99, 235, .22);
        }
        .brand-text {
            overflow: hidden;
            font-size: 15px;
            white-space: nowrap;
            text-overflow: ellipsis;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search svg {
            position: absolute;
            left: 16px;
            width: 20px;
            color: #64748b;
            pointer-events: none;
        }
        .nav-search input {
            width: 100%;
            height: 48px;
            padding: 0 48px 0 46px;
            color: var(--text);
            border: 1px solid #dfe7f1;
            outline: none;
            background: #f2f6fb;
            border-radius: 14px;
            transition: .2s ease;
        }
        .nav-search input:hover { border-color: #c6d3e3; }
        .nav-search input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, .13);
        }
        .search-clear {
            position: absolute;
            right: 8px;
            width: 34px;
            height: 34px;
            display: none;
            place-items: center;
            color: #64748b;
            background: transparent;
            border-radius: 9px;
        }
        .search-clear.visible { display: grid; }
        .search-clear:hover { color: var(--text); background: #e8eef6; }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 0 12px;
            color: #475569;
            border-radius: 11px;
            font-size: 15px;
            font-weight: 650;
            white-space: nowrap;
            transition: .2s ease;
        }
        .nav-link:hover { color: var(--primary-dark); background: #eff6ff; }
        .nav-link.active { color: var(--primary-dark); background: #eaf2ff; }
        .nav-action {
            min-height: 42px;
            padding: 0 14px;
            color: var(--primary-dark);
            border: 1px solid #cdddf8;
            background: #fff;
            border-radius: 11px;
            font-weight: 700;
            white-space: nowrap;
            transition: .2s ease;
        }
        .nav-action:hover { border-color: var(--primary); background: #f5f9ff; }
        .menu-button {
            width: 44px;
            height: 44px;
            display: none;
            place-items: center;
            color: var(--text);
            background: #f2f6fb;
            border-radius: 12px;
        }
        .mobile-menu {
            display: none;
            padding: 8px 20px 18px;
            border-top: 1px solid var(--border);
            background: #fff;
        }
        .mobile-menu.open { display: grid; gap: 8px; }

        :focus-visible {
            outline: 3px solid rgba(37, 99, 235, .35);
            outline-offset: 3px;
        }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 54px 0 58px;
            background:
                radial-gradient(circle at 92% 14%, rgba(37, 99, 235, .10), transparent 27%),
                linear-gradient(180deg, #fff 0%, #f7faff 100%);
        }
        .hero::before {
            position: absolute;
            inset: 0;
            opacity: .28;
            background-image: radial-gradient(#93b5e8 1px, transparent 1px);
            background-size: 25px 25px;
            mask-image: linear-gradient(to left, #000, transparent 72%);
            content: "";
            pointer-events: none;
        }
        .live-cover {
            position: relative;
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            min-height: 430px;
            border: 1px solid #dce7f5;
            background: #fff;
            border-radius: 24px;
            box-shadow: var(--shadow);
        }
        .hero-copy {
            position: relative;
            z-index: 2;
            padding: 54px 54px 48px;
        }
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 12px;
            color: #0e7490;
            background: #ecfeff;
            border: 1px solid #bae6fd;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 750;
        }
        .live-dot {
            width: 8px;
            height: 8px;
            background: var(--secondary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(8, 145, 178, .12);
        }
        .hero h1 {
            max-width: 740px;
            margin: 20px 0 18px;
            font-size: clamp(34px, 4.3vw, 52px);
            line-height: 1.16;
            letter-spacing: -.035em;
        }
        .hero-intro {
            max-width: 710px;
            margin: 0;
            color: #526176;
            font-size: 18px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }
        .btn {
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 0 20px;
            border-radius: 12px;
            font-weight: 750;
            transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
        }
        .btn-primary {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 10px 22px rgba(37, 99, 235, .2);
        }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
        .btn-secondary {
            color: var(--primary-dark);
            border: 1px solid #cbdcf8;
            background: #fff;
        }
        .btn-secondary:hover { border-color: var(--primary); background: #f4f8ff; transform: translateY(-2px); }
        .btn:active { transform: translateY(0); }
        .btn[disabled] { opacity: .52; cursor: not-allowed; transform: none; box-shadow: none; }
        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin: 25px 0 0;
            padding: 0;
            color: #475569;
            list-style: none;
            font-size: 14px;
        }
        .hero-points li {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-points svg { width: 17px; color: var(--secondary); }

        .countdown-panel {
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 42px;
            color: #f8fbff;
            background: #1f4f9e;
        }
        .countdown-panel::before,
        .countdown-panel::after {
            position: absolute;
            border: 1px solid rgba(255,255,255,.16);
            border-radius: 50%;
            content: "";
        }
        .countdown-panel::before { width: 290px; height: 290px; top: -120px; right: -80px; }
        .countdown-panel::after { width: 180px; height: 180px; right: 36px; bottom: -110px; }
        .subtitle-lines {
            position: relative;
            z-index: 2;
            display: grid;
            gap: 12px;
        }
        .subtitle-line {
            height: 12px;
            border-radius: 999px;
            background: rgba(255,255,255,.18);
        }
        .subtitle-line:nth-child(1) { width: 76%; }
        .subtitle-line:nth-child(2) { width: 93%; }
        .subtitle-line:nth-child(3) { width: 58%; }
        .broadcast-info { position: relative; z-index: 2; margin-top: 42px; }
        .broadcast-info p { margin: 0; color: #dbeafe; font-size: 14px; }
        .broadcast-info h2 { margin: 6px 0 18px; font-size: 25px; line-height: 1.35; }
        .countdown {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 9px;
        }
        .time-cell {
            padding: 12px 5px;
            text-align: center;
            border: 1px solid rgba(255,255,255,.19);
            background: rgba(255,255,255,.09);
            border-radius: 12px;
        }
        .time-cell strong { display: block; font-size: 25px; line-height: 1.15; }
        .time-cell span { color: #dbeafe; font-size: 12px; }
        .reminder-status {
            min-height: 24px;
            margin: 13px 0 0;
            color: #dbeafe;
            font-size: 13px;
        }

        .metric-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 18px;
        }
        .card {
            border: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
        }
        .card:hover { border-color: #bfd1eb; box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .metric-card { min-height: 190px; padding: 25px; }
        .metric-main {
            grid-row: span 2;
            padding: 34px;
            background: #edf5ff;
            border-color: #cfe0f8;
        }
        .metric-label { color: #526176; font-size: 14px; font-weight: 700; }
        .metric-number {
            margin: 12px 0 5px;
            color: var(--primary-dark);
            font-size: clamp(34px, 5vw, 56px);
            font-weight: 800;
            line-height: 1;
        }
        .metric-desc { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
        .progress {
            height: 8px;
            overflow: hidden;
            margin-top: 22px;
            background: #dbe7f5;
            border-radius: 99px;
        }
        .progress span {
            display: block;
            height: 100%;
            background: var(--primary);
            border-radius: inherit;
        }
        .mini-trend {
            display: flex;
            align-items: end;
            gap: 6px;
            height: 42px;
            margin-top: 18px;
        }
        .mini-trend i {
            width: 10px;
            background: #9cc0f8;
            border-radius: 4px 4px 1px 1px;
        }
        .mini-trend i:last-child { background: var(--primary); }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 18px;
        }
        .matrix-card { padding: 27px; }
        .matrix-card.wide { grid-column: span 7; }
        .matrix-card.medium { grid-column: span 5; }
        .matrix-card.compact { grid-column: span 4; }
        .matrix-card.feature {
            grid-row: span 2;
            color: #fff;
            background: #234f98;
            border-color: #234f98;
        }
        .icon-box {
            width: 46px;
            height: 46px;
            display: grid;
            place-items: center;
            margin-bottom: 20px;
            color: var(--primary);
            background: #eaf2ff;
            border-radius: 13px;
        }
        .feature .icon-box { color: #fff; background: rgba(255,255,255,.13); }
        .icon-box svg { width: 23px; }
        .matrix-card h3 { margin: 0; font-size: 21px; line-height: 1.4; }
        .matrix-card p { margin: 10px 0 0; color: var(--muted); }
        .feature p { color: #dbeafe; }
        .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
        .badge {
            display: inline-flex;
            align-items: center;
            min-height: 29px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
        }
        .badge-language { color: #0e7490; background: #ecfeff; }
        .badge-status { color: #1d4ed8; background: #eff6ff; }
        .badge-update { color: #047857; background: #ecfdf5; }
        .badge-note { color: #92400e; background: #fffbeb; }
        .feature .badge { color: #eff6ff; background: rgba(255,255,255,.12); }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 20px;
            color: var(--primary-dark);
            font-weight: 750;
        }
        .card-link span { transition: transform .2s ease; }
        .card-link:hover span { transform: translateX(4px); }
        .feature .card-link { color: #fff; }
        .ui-preview {
            display: grid;
            gap: 10px;
            margin-top: 24px;
            padding: 18px;
            background: rgba(255,255,255,.09);
            border: 1px solid rgba(255,255,255,.13);
            border-radius: 14px;
        }
        .ui-preview div {
            height: 11px;
            background: rgba(255,255,255,.18);
            border-radius: 99px;
        }
        .ui-preview div:nth-child(2) { width: 72%; }
        .ui-preview div:nth-child(3) { width: 89%; }

        .compare-shell {
            overflow: hidden;
            border: 1px solid #d8e5f6;
            background: #fff;
            border-radius: 22px;
            box-shadow: var(--shadow);
        }
        .compare-head {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border-bottom: 1px solid var(--border);
        }
        .compare-head > div { padding: 24px 28px; }
        .compare-head > div:first-child { background: #f8fafc; }
        .compare-head > div:last-child { color: var(--primary-dark); background: #edf5ff; }
        .compare-head h3 { margin: 0; font-size: 21px; }
        .compare-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
        .compare-rows { padding: 8px 0; }
        .compare-row {
            display: grid;
            grid-template-columns: 190px 1fr 1fr;
            align-items: stretch;
            border-bottom: 1px solid #edf1f6;
        }
        .compare-row:last-child { border-bottom: 0; }
        .compare-title {
            display: flex;
            align-items: center;
            padding: 18px 24px;
            font-weight: 750;
        }
        .compare-value {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 18px 24px;
            color: #536176;
        }
        .compare-value.emphasis { color: #23436f; background: #f8fbff; }
        .status-icon {
            width: 24px;
            height: 24px;
            flex: 0 0 auto;
            display: grid;
            place-items: center;
            color: #475569;
            background: #eef2f7;
            border-radius: 50%;
        }
        .emphasis .status-icon { color: var(--primary-dark); background: #dbeafe; }

        .updates-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
            gap: 22px;
        }
        .update-list {
            overflow: hidden;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .update-item {
            display: grid;
            grid-template-columns: 84px 1fr auto;
            align-items: center;
            gap: 18px;
            padding: 21px 24px;
            border-bottom: 1px solid #edf1f6;
            transition: background .2s ease;
        }
        .update-item:last-child { border-bottom: 0; }
        .update-item:hover { background: #f8fbff; }
        .update-date { color: var(--primary-dark); font-size: 14px; font-weight: 750; }
        .update-content h3 { margin: 0; font-size: 17px; }
        .update-content p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
        .arrow-link {
            width: 40px;
            height: 40px;
            display: grid;
            place-items: center;
            color: var(--primary-dark);
            background: #eff6ff;
            border-radius: 11px;
            transition: .2s ease;
        }
        .arrow-link:hover { color: #fff; background: var(--primary); transform: translateX(2px); }
        .recommend-card {
            padding: 28px;
            color: #fff;
            background: #234f98;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .recommend-card h3 { margin: 0 0 10px; font-size: 22px; }
        .recommend-card p { margin: 0; color: #dbeafe; }
        .recommend-list { display: grid; gap: 10px; margin: 22px 0 0; padding: 0; list-style: none; }
        .recommend-list a {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 14px;
            background: rgba(255,255,255,.1);
            border-radius: 11px;
            transition: background .2s ease;
        }
        .recommend-list a:hover { background: rgba(255,255,255,.17); }

        .faq-layout {
            display: grid;
            grid-template-columns: .7fr 1.3fr;
            gap: 56px;
            align-items: start;
        }
        .faq-intro {
            position: sticky;
            top: 112px;
        }
        .faq-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
        .faq-list { display: grid; gap: 12px; }
        .faq-item {
            overflow: hidden;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 15px;
            box-shadow: 0 5px 18px rgba(51,65,85,.05);
        }
        .faq-question {
            width: 100%;
            min-height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 22px;
            color: var(--text);
            text-align: left;
            background: #fff;
            font-weight: 750;
        }
        .faq-question:hover { color: var(--primary-dark); background: #fbfdff; }
        .faq-symbol {
            width: 30px;
            height: 30px;
            flex: 0 0 auto;
            display: grid;
            place-items: center;
            color: var(--primary-dark);
            background: #edf5ff;
            border-radius: 9px;
            transition: transform .2s ease;
        }
        .faq-question[aria-expanded="true"] .faq-symbol { transform: rotate(45deg); }
        .faq-answer {
            display: grid;
            grid-template-rows: 0fr;
            transition: grid-template-rows .22s ease;
        }
        .faq-answer > div { overflow: hidden; }
        .faq-answer p { margin: 0; padding: 0 22px 21px; color: var(--muted); }
        .faq-item.open .faq-answer { grid-template-rows: 1fr; }

        .form-layout {
            display: grid;
            grid-template-columns: .75fr 1.25fr;
            gap: 26px;
            align-items: stretch;
        }
        .request-copy {
            padding: 38px;
            color: #fff;
            background: #234f98;
            border-radius: 22px;
            box-shadow: var(--shadow);
        }
        .request-copy h2 { margin: 0; font-size: 32px; line-height: 1.3; }
        .request-copy > p { color: #dbeafe; }
        .request-points { display: grid; gap: 14px; margin: 28px 0 0; padding: 0; list-style: none; }
        .request-points li { display: flex; gap: 11px; }
        .request-points svg { width: 20px; flex: 0 0 auto; margin-top: 4px; color: #7dd3fc; }
        .form-card {
            padding: 34px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 22px;
            box-shadow: var(--shadow);
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .form-field { display: grid; gap: 7px; }
        .form-field.full { grid-column: 1 / -1; }
        .form-field label { font-size: 14px; font-weight: 750; }
        .required { color: #b45309; }
        .form-control {
            width: 100%;
            min-height: 48px;
            padding: 11px 13px;
            color: var(--text);
            border: 1px solid #cfd9e6;
            outline: none;
            background: #fff;
            border-radius: 11px;
            transition: .2s ease;
        }
        textarea.form-control { min-height: 112px; resize: vertical; }
        .form-control:hover { border-color: #aebfd4; }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(37,99,235,.12);
        }
        .form-control.invalid { border-color: #b45309; box-shadow: 0 0 0 4px rgba(180,83,9,.10); }
        .help-text { margin: 0; color: var(--muted); font-size: 13px; }
        .error-text { display: none; margin: 0; color: #9a3412; font-size: 13px; }
        .invalid + .error-text { display: block; }
        .check-row {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #526176;
            font-size: 14px;
        }
        .check-row input { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--primary); }
        .form-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 24px;
        }
        .form-status { margin: 0; color: var(--muted); font-size: 14px; }
        .form-status.success { color: #047857; }
        .form-status.error { color: #9a3412; }

        .share-strip { padding: 28px 0 96px; background: #f0f6ff; }
        .share-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 27px 30px;
            border: 1px solid #cfdef3;
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow);
        }
        .share-card h2 { margin: 0; font-size: 22px; }
        .share-card p { margin: 4px 0 0; color: var(--muted); }
        .share-actions { display: flex; gap: 10px; flex: 0 0 auto; }

        .site-footer {
            border-top: 1px solid #dfe7f0;
            background: #eef3f8;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.5fr .75fr .75fr;
            gap: 50px;
            padding: 56px 0 40px;
        }
        .footer-brand p { max-width: 510px; margin: 16px 0 0; color: #5c687a; }
        .footer-title { margin: 0 0 13px; font-size: 15px; font-weight: 800; }
        .footer-links { display: grid; gap: 9px; }
        .footer-links a { color: #5c687a; font-size: 14px; }
        .footer-links a:hover { color: var(--primary-dark); text-decoration: underline; text-underline-offset: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 0 26px;
            color: #667085;
            border-top: 1px solid #d9e2ec;
            font-size: 13px;
        }

        .floating-bar {
            position: fixed;
            z-index: 40;
            right: 20px;
            bottom: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 11px 10px 17px;
            border: 1px solid #ceddf1;
            background: #fff;
            border-radius: 15px;
            box-shadow: 0 18px 48px rgba(30, 64, 175, .18);
            transform: translateY(150%);
            transition: transform .25s ease;
        }
        .floating-bar.show { transform: translateY(0); }
        .floating-bar span { font-size: 14px; font-weight: 700; }

        @media (max-width: 1100px) {
            .site-container { width: min(100% - 40px, 1220px); }
            .nav-shell { grid-template-columns: 210px 1fr auto; gap: 14px; }
            .nav-action { display: none; }
            .live-cover { grid-template-columns: 1fr; }
            .countdown-panel { min-height: 310px; }
            .metric-layout { grid-template-columns: repeat(2, 1fr); }
            .metric-main { grid-row: auto; grid-column: span 2; }
            .matrix-card.wide, .matrix-card.medium { grid-column: span 6; }
            .matrix-card.compact { grid-column: span 6; }
        }

        @media (max-width: 768px) {
            html { scroll-padding-top: 138px; }
            .site-container { width: min(100% - 32px, 1220px); }
            .section-space { padding: 64px 0; }
            .nav-shell {
                min-height: 128px;
                grid-template-columns: 1fr auto;
                grid-template-rows: 60px 58px;
                gap: 0 12px;
            }
            .brand-text { max-width: 245px; }
            .menu-button { display: grid; }
            .nav-search { grid-column: 1 / -1; align-self: start; }
            .nav-links { display: none; }
            .hero { padding: 28px 0 42px; }
            .hero-copy { padding: 34px 25px; }
            .hero-intro { font-size: 16px; }
            .hero-actions .btn { flex: 1 1 180px; }
            .countdown-panel { padding: 30px 25px; }
            .metric-layout { grid-template-columns: 1fr; }
            .metric-main { grid-column: auto; }
            .matrix-card.wide, .matrix-card.medium, .matrix-card.compact { grid-column: 1 / -1; }
            .compare-head { display: none; }
            .compare-row {
                grid-template-columns: 1fr;
                padding: 18px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
            }
            .compare-title, .compare-value { padding: 9px 10px; border-radius: 10px; }
            .compare-value { background: #f8fafc; }
            .updates-layout, .faq-layout, .form-layout { grid-template-columns: 1fr; }
            .faq-intro { position: static; }
            .update-item { grid-template-columns: 70px 1fr; padding: 18px; }
            .update-item .arrow-link { grid-column: 2; }
            .form-grid { grid-template-columns: 1fr; }
            .form-field.full { grid-column: auto; }
            .share-card { align-items: flex-start; flex-direction: column; }
            .footer-main { grid-template-columns: 1fr 1fr; gap: 34px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-bottom { flex-direction: column; }
            .floating-bar { right: 12px; bottom: 12px; left: 12px; justify-content: space-between; }
        }

        @media (max-width: 520px) {
            .site-container { width: min(100% - 28px, 1220px); }
            .brand-text { max-width: 220px; font-size: 13px; white-space: normal; }
            .brand-mark { width: 39px; height: 39px; }
            .hero h1 { font-size: 34px; }
            .hero-points { display: grid; gap: 9px; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; flex-basis: auto; }
            .metric-card, .metric-main, .matrix-card, .form-card, .request-copy { padding: 24px; }
            .countdown-panel { min-height: 300px; }
            .update-item { grid-template-columns: 1fr; gap: 7px; }
            .update-item .arrow-link { grid-column: auto; }
            .share-actions, .form-actions { width: 100%; flex-direction: column; align-items: stretch; }
            .share-actions .btn, .form-actions .btn { width: 100%; }
            .footer-main { grid-template-columns: 1fr; }
            .footer-brand { grid-column: auto; }
            .floating-bar span { display: none; }
            .floating-bar .btn { width: 100%; }
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                scroll-behavior: auto !important;
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: category1 */
:root{--primary:#2563eb;--primary-dark:#1d4ed8;--secondary:#0891b2;--warning:#b45309;--canvas:#f7fafc;--surface:#fff;--surface-blue:#eff6ff;--text:#172033;--muted:#667085;--border:#e4eaf2;--radius:18px;--radius-sm:12px;--shadow:0 14px 38px rgba(51,65,85,.08),0 2px 8px rgba(37,99,235,.04);--shadow-hover:0 20px 48px rgba(51,65,85,.12),0 4px 12px rgba(37,99,235,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--text);background:var(--canvas);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{border:0;cursor:pointer}img,svg{display:block;max-width:100%}.site-container{width:min(1220px,calc(100% - 64px));margin:auto}.site-header{position:sticky;z-index:20;top:0;border-bottom:1px solid rgba(226,232,240,.95);background:rgba(255,255,255,.97)}.nav-shell{min-height:78px;display:grid;grid-template-columns:minmax(235px,.78fr) minmax(320px,1.65fr) auto;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;line-height:1.25}.brand-mark{width:42px;height:42px;display:grid;place-items:center;flex:none;color:#fff;background:var(--primary);border-radius:13px;box-shadow:0 8px 18px rgba(37,99,235,.22)}.brand-text{overflow:hidden;font-size:15px;white-space:nowrap;text-overflow:ellipsis}.nav-search{position:relative;display:flex;align-items:center}.nav-search>svg{position:absolute;left:16px;width:20px;color:#64748b;pointer-events:none}.nav-search input{width:100%;height:48px;padding:0 48px 0 46px;color:var(--text);border:1px solid #dfe7f1;outline:0;background:#f2f6fb;border-radius:14px;transition:.2s}.nav-search input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(37,99,235,.13)}.search-clear{position:absolute;right:8px;width:34px;height:34px;display:none;place-items:center;color:#64748b;background:transparent;border-radius:9px}.search-clear.visible{display:grid}.search-clear:hover{background:#e8eef6}.nav-links{display:flex;align-items:center;gap:6px}.nav-link,.nav-action{min-height:44px;display:inline-flex;align-items:center;gap:5px;padding:0 12px;border-radius:11px;font-size:15px;font-weight:650;white-space:nowrap;transition:.2s}.nav-link{color:#475569}.nav-link:hover,.nav-link.active{color:var(--primary-dark);background:#eaf2ff}.nav-action{min-height:42px;color:var(--primary-dark);border:1px solid #cdddf8;background:#fff}.nav-action:hover{border-color:var(--primary);background:#f5f9ff}.menu-button{width:44px;height:44px;display:none;place-items:center;color:var(--text);background:#f2f6fb;border-radius:12px}.mobile-menu{display:none}.hero{padding:62px 0 54px;background:linear-gradient(135deg,#f8fbff,#eef6ff);border-bottom:1px solid #e7eef8}.crumbs{display:flex;gap:9px;align-items:center;color:#728096;font-size:14px;margin-bottom:25px}.crumbs a:hover{color:var(--primary)}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:58px;align-items:end}.kicker,.badge{display:inline-flex;align-items:center;gap:7px;color:var(--primary-dark);font-size:13px;font-weight:750}.kicker:before{content:"";width:23px;height:3px;border-radius:9px;background:var(--primary)}h1{margin:13px 0 17px;font-size:clamp(32px,4.3vw,48px);line-height:1.2;letter-spacing:-.035em} .hero-copy{max-width:760px;color:var(--muted);font-size:17px}.hero-actions{display:flex;gap:12px;margin-top:27px}.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 19px;border-radius:12px;font-weight:750;transition:.2s}.btn-primary{color:#fff;background:var(--primary);box-shadow:0 9px 18px rgba(37,99,235,.18)}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}.btn-secondary{color:var(--primary-dark);border:1px solid #cdddf8;background:#fff}.btn-secondary:hover{border-color:var(--primary);background:#f5f9ff}.hero-note{padding:23px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-note strong{display:block;font-size:28px;line-height:1.2}.hero-note p{margin:8px 0 0;color:var(--muted);font-size:14px}.section-space{padding:78px 0}.section-heading{max-width:760px;margin-bottom:30px}.section-kicker{display:inline-flex;color:var(--primary-dark);font-size:14px;font-weight:700}.section-kicker:before{content:"";width:24px;height:3px;margin:11px 8px 0 0;border-radius:9px;background:var(--primary)}h2{margin:9px 0;font-size:clamp(27px,3vw,36px);line-height:1.25;letter-spacing:-.025em}.section-heading p{margin:10px 0;color:var(--muted);font-size:16px}.toolbar{display:grid;grid-template-columns:1.5fr repeat(4,1fr) auto;gap:11px;padding:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.field{height:44px;padding:0 13px;border:1px solid #dfe7f1;border-radius:11px;background:#f8fafc;color:#475569;outline:0}.field:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12);background:#fff}.clear-filter{height:44px;padding:0 13px;color:#64748b;background:#f1f5f9;border-radius:11px}.clear-filter:hover{color:var(--primary-dark);background:#e8f0ff}.chips{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 26px}.chip{display:inline-flex;align-items:center;gap:7px;padding:5px 11px;color:#1e40af;background:#eaf2ff;border-radius:99px;font-size:13px;font-weight:650}.chip button{color:#6681bd;background:transparent}.feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-bottom:18px}.feature{display:grid;grid-template-columns:220px 1fr;gap:22px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:.22s}.feature:hover,.item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#c8d8f2}.cover{min-height:158px;border-radius:14px;background:linear-gradient(145deg,#dbeafe,#dff7fa);position:relative;overflow:hidden;padding:17px;color:#1e40af}.cover:after{content:"字幕行  中文字幕  语言";position:absolute;left:17px;right:-30px;bottom:21px;padding:7px 10px;background:rgba(255,255,255,.8);transform:rotate(-6deg);font-size:12px}.cover small{font-weight:750}.feature h3,.item h3{margin:5px 0 8px;font-size:19px;line-height:1.4}.feature p,.item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.badge{padding:4px 9px;border-radius:99px;background:#e6f8fb;color:#0e7490;font-size:12px}.badge.update{background:#fff5df;color:#92400e}.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;color:#718096;font-size:13px}.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.item{padding:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:.22s}.item-top{display:flex;justify-content:space-between;gap:10px;align-items:start}.mini-line{width:100%;height:6px;margin-top:18px;background:#edf2f7;border-radius:9px;overflow:hidden}.mini-line span{display:block;width:72%;height:100%;background:#7dd3fc;border-radius:9px}.updates{margin-top:18px;padding:25px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.updates h3{margin:0 0 16px;font-size:20px}.timeline{display:grid;gap:14px}.timeline li{display:grid;grid-template-columns:86px 12px 1fr;gap:12px;align-items:start;list-style:none;color:var(--muted);font-size:14px}.timeline ul{padding:0;margin:0}.dot{width:10px;height:10px;margin-top:8px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 4px #e6f8fb}.notice{margin-top:42px;padding:22px 25px;display:flex;justify-content:space-between;align-items:center;gap:20px;background:#eff6ff;border:1px solid #d9e8ff;border-radius:var(--radius)}.notice p{margin:5px 0 0;color:var(--muted);font-size:14px}.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:54px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}.faq-question{width:100%;padding:17px 20px;display:flex;justify-content:space-between;text-align:left;color:var(--text);background:#fff;font-weight:700}.faq-question:hover{color:var(--primary-dark);background:#fbfdff}.faq-answer{display:none;padding:0 20px 18px;color:var(--muted);font-size:15px}.faq-item.open .faq-answer{display:block}.faq-item.open .plus{transform:rotate(45deg)}.plus{font-size:23px;color:var(--primary);transition:.2s}.site-footer{padding:54px 0 20px;background:#eef3f8;border-top:1px solid #e1e9f2}.footer-main{display:grid;grid-template-columns:1.7fr .7fr .7fr;gap:54px}.footer-brand p{max-width:500px;color:var(--muted);font-size:14px}.footer-title{margin:3px 0 14px;font-size:15px}.footer-links{display:grid;gap:8px;color:#64748b;font-size:14px}.footer-links a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid #d9e2ec;color:#718096;font-size:12px}.focus-ring:focus-visible,.btn:focus-visible,.nav-link:focus-visible,.nav-action:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(37,99,235,.3);outline-offset:2px}@media(max-width:1024px){.nav-shell{grid-template-columns:220px 1fr auto}.nav-links .nav-action{display:none}.hero-grid,.faq-grid{grid-template-columns:1fr}.toolbar{grid-template-columns:repeat(3,1fr)}.feature-grid{grid-template-columns:1fr}.footer-main{grid-template-columns:1.4fr 1fr 1fr}}@media(max-width:768px){.site-container{width:min(100% - 32px,620px)}.nav-shell{min-height:70px;grid-template-columns:1fr auto;gap:12px}.nav-search{grid-column:1/-1;grid-row:2;margin-bottom:12px}.site-header{position:relative}.nav-shell{padding-top:10px}.nav-links{display:none}.menu-button{display:grid}.mobile-menu{padding-left:16px;padding-right:16px}.mobile-menu.open{display:grid}.mobile-menu a{padding:12px;border-radius:10px}.hero{padding:40px 0}.hero-actions{flex-direction:column;align-items:stretch}.toolbar{grid-template-columns:1fr 1fr}.list-grid{grid-template-columns:1fr}.feature{grid-template-columns:1fr}.cover{min-height:130px}.section-space{padding:58px 0}.notice{align-items:flex-start;flex-direction:column}.footer-main{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:8px}}@media(max-width:520px){.toolbar{grid-template-columns:1fr}.hero-note{margin-top:4px}.footer-main{grid-template-columns:1fr}.footer-bottom{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}