/* roulang page: index */
:root {
            --ink: #09111f;
            --ink-soft: #172338;
            --paper: #f4f7fb;
            --surface: #ffffff;
            --surface-soft: #edf2f8;
            --text: #182236;
            --muted: #657087;
            --line: #dce4ef;
            --primary: #5b3df5;
            --primary-dark: #3f28c7;
            --cyan: #13c7c9;
            --gold: #f4b942;
            --green: #17a673;
            --red: #e55b67;
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 30px;
            --shadow-sm: 0 8px 24px rgba(13, 26, 48, .07);
            --shadow-md: 0 18px 50px rgba(13, 26, 48, .12);
            --shadow-dark: 0 22px 70px rgba(0, 0, 0, .22);
            --transition: .25s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            color: var(--text);
            background: var(--paper);
            font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            line-height: 1.72;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: -2;
            pointer-events: none;
            background:
                radial-gradient(circle at 8% 14%, rgba(91, 61, 245, .09), transparent 28%),
                radial-gradient(circle at 92% 30%, rgba(19, 199, 201, .08), transparent 24%),
                linear-gradient(180deg, #f7f9fc 0%, #f1f5fa 100%);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        button, input, select {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

        img, svg {
            display: block;
            max-width: 100%;
        }

        ::selection {
            color: #fff;
            background: var(--primary);
        }

        :focus-visible {
            outline: 3px solid rgba(19, 199, 201, .55);
            outline-offset: 3px;
        }

        .container-site {
            width: min(1180px, calc(100% - 40px));
            margin-inline: auto;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid rgba(220, 228, 239, .9);
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(18px);
            box-shadow: 0 8px 30px rgba(13, 26, 48, .04);
        }

        .nav-shell {
            min-height: 76px;
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex: 0 0 auto;
            font-weight: 900;
            letter-spacing: -.04em;
            color: var(--ink);
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 13px;
            color: #fff;
            font-size: 14px;
            background: linear-gradient(145deg, var(--primary), #8c68ff 58%, var(--cyan));
            box-shadow: 0 10px 25px rgba(91, 61, 245, .28);
        }

        .brand-text {
            font-size: 18px;
            white-space: nowrap;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }

        .nav-link {
            min-height: 42px;
            display: inline-flex;
            align-items: center;
            padding: 0 16px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 14px;
            font-weight: 700;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(91, 61, 245, .07);
        }

        .nav-link.active {
            color: #fff;
            background: var(--ink);
            box-shadow: 0 8px 18px rgba(9, 17, 31, .16);
        }

        .stage-pills {
            display: flex;
            align-items: center;
            gap: 6px;
            padding-left: 16px;
            border-left: 1px solid var(--line);
        }

        .stage-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 10px;
            border: 1px solid var(--line);
            border-radius: 999px;
            color: var(--muted);
            background: #fff;
            font-size: 12px;
            font-weight: 700;
        }

        .stage-pill.current {
            color: #087658;
            border-color: rgba(23, 166, 115, .25);
            background: rgba(23, 166, 115, .08);
        }

        .pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--green);
            box-shadow: 0 0 0 5px rgba(23, 166, 115, .12);
        }

        .menu-button {
            display: none;
            width: 43px;
            height: 43px;
            margin-left: auto;
            border: 1px solid var(--line);
            border-radius: 12px;
            color: var(--ink);
            background: #fff;
        }

        .mobile-nav {
            display: none;
            padding: 0 20px 18px;
        }

        .mobile-nav.open {
            display: grid;
            gap: 8px;
        }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 76px 0 70px;
            color: #fff;
            background:
                linear-gradient(125deg, rgba(9, 17, 31, .98), rgba(19, 31, 53, .96)),
                var(--ink);
        }

        .hero::before,
        .hero::after {
            content: "";
            position: absolute;
            border-radius: 50%;
            filter: blur(2px);
            pointer-events: none;
        }

        .hero::before {
            width: 460px;
            height: 460px;
            right: -120px;
            top: -180px;
            background: radial-gradient(circle, rgba(91, 61, 245, .5), transparent 68%);
        }

        .hero::after {
            width: 380px;
            height: 380px;
            left: -180px;
            bottom: -220px;
            background: radial-gradient(circle, rgba(19, 199, 201, .32), transparent 68%);
        }

        .hero-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: .82fr 1.38fr;
            gap: 64px;
            align-items: center;
        }

        .report-cover {
            min-height: 530px;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 38px;
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: var(--radius-lg);
            background:
                linear-gradient(155deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, .03)),
                linear-gradient(145deg, #4f34d8, #111c34 62%, #0b797c);
            box-shadow: var(--shadow-dark);
            isolation: isolate;
        }

        .report-cover::before {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            right: -80px;
            bottom: 50px;
            border: 54px solid rgba(255, 255, 255, .07);
            border-radius: 50%;
            z-index: -1;
        }

        .report-number {
            font-size: clamp(70px, 10vw, 130px);
            line-height: .9;
            font-weight: 950;
            letter-spacing: -.09em;
            color: rgba(255, 255, 255, .16);
        }

        .report-title {
            max-width: 350px;
            font-size: clamp(30px, 4vw, 50px);
            line-height: 1.08;
            letter-spacing: -.055em;
            font-weight: 950;
        }

        .report-meta {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .18);
            color: rgba(255, 255, 255, .76);
            font-size: 13px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 18px;
            padding: 7px 12px;
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            color: #d9d3ff;
            background: rgba(255, 255, 255, .07);
            font-size: 13px;
            font-weight: 800;
        }

        .hero h1 {
            margin: 0;
            max-width: 760px;
            font-size: clamp(38px, 5.3vw, 68px);
            line-height: 1.08;
            letter-spacing: -.055em;
            font-weight: 950;
        }

        .hero-intro {
            display: grid;
            gap: 12px;
            max-width: 760px;
            margin: 25px 0;
            color: #c4cede;
            font-size: 16px;
        }

        .hero-intro p {
            margin: 0;
        }

        .hero-form {
            display: grid;
            grid-template-columns: .75fr 1.15fr auto;
            gap: 10px;
            padding: 10px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 18px;
            background: rgba(255, 255, 255, .08);
        }

        .hero-form input {
            width: 100%;
            min-height: 52px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 12px;
            color: #fff;
            background: rgba(4, 10, 20, .45);
        }

        .hero-form input::placeholder {
            color: #91a0b6;
        }

        .primary-button {
            min-height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 0 22px;
            border: 0;
            border-radius: 12px;
            color: #08111f;
            background: var(--cyan);
            font-weight: 900;
            white-space: nowrap;
            box-shadow: 0 10px 28px rgba(19, 199, 201, .22);
        }

        .primary-button:hover {
            transform: translateY(-2px);
            background: #48dfe0;
            box-shadow: 0 14px 34px rgba(19, 199, 201, .34);
        }

        .primary-button:active {
            transform: translateY(0);
        }

        .form-note {
            margin: 10px 0 0;
            color: #8998ae;
            font-size: 12px;
        }

        .form-result {
            min-height: 24px;
            margin-top: 8px;
            color: #7ee7ce;
            font-size: 13px;
            font-weight: 700;
        }

        main section {
            position: relative;
            padding: 86px 0;
        }

        main section:nth-child(even):not(.dark-section):not(.topic-band):not(.download-section) {
            background: rgba(255, 255, 255, .72);
            border-block: 1px solid rgba(220, 228, 239, .8);
        }

        .section-heading {
            max-width: 760px;
            margin-bottom: 34px;
        }

        .section-heading.wide {
            max-width: 960px;
        }

        .kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 11px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .08em;
        }

        .kicker::before {
            content: "";
            width: 22px;
            height: 3px;
            border-radius: 999px;
            background: var(--primary);
        }

        .section-heading h2 {
            margin: 0;
            color: var(--ink);
            font-size: clamp(29px, 4vw, 46px);
            line-height: 1.16;
            letter-spacing: -.045em;
            font-weight: 950;
        }

        .section-heading p {
            margin: 14px 0 0;
            color: var(--muted);
            font-size: 16px;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            min-height: 180px;
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--surface);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: rgba(91, 61, 245, .3);
            box-shadow: var(--shadow-md);
        }

        .metric-label {
            color: var(--muted);
            font-size: 13px;
            font-weight: 800;
        }

        .metric-number {
            margin: 14px 0 8px;
            color: var(--ink);
            font-size: 38px;
            line-height: 1;
            font-weight: 950;
            letter-spacing: -.05em;
        }

        .metric-card p {
            margin: 0;
            color: var(--muted);
            font-size: 13px;
        }

        .dimension-bar {
            display: flex;
            gap: 10px;
            margin-top: 18px;
            padding: 15px;
            overflow-x: auto;
            border: 1px solid var(--line);
            border-radius: 16px;
            background: #fff;
            scrollbar-width: thin;
        }

        .dimension-chip {
            flex: 0 0 auto;
            padding: 8px 13px;
            border-radius: 999px;
            color: #445068;
            background: var(--surface-soft);
            font-size: 12px;
            font-weight: 800;
        }

        .news-ranking-layout {
            display: grid;
            grid-template-columns: 1.45fr .85fr;
            gap: 24px;
            align-items: start;
        }

        .panel {
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--surface);
            box-shadow: var(--shadow-sm);
        }

        .panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
            padding: 22px 24px;
            border-bottom: 1px solid var(--line);
        }

        .panel-head h3 {
            margin: 0;
            color: var(--ink);
            font-size: 19px;
            font-weight: 900;
        }

        .status-badge,
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 850;
        }

        .status-badge {
            color: #087658;
            background: rgba(23, 166, 115, .1);
        }

        .news-list,
        .ranking-list,
        .plain-list {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .news-item {
            display: grid;
            grid-template-columns: 92px 1fr auto;
            gap: 18px;
            align-items: center;
            padding: 20px 24px;
            border-bottom: 1px solid var(--line);
        }

        .news-item:last-child,
        .ranking-item:last-child {
            border-bottom: 0;
        }

        .news-date {
            color: var(--muted);
            font-size: 12px;
            font-weight: 800;
        }

        .news-copy strong {
            display: block;
            margin-bottom: 4px;
            color: var(--ink);
            font-size: 15px;
        }

        .news-copy span {
            color: var(--muted);
            font-size: 13px;
        }

        .tag {
            color: var(--primary-dark);
            background: rgba(91, 61, 245, .09);
        }

        .ranking-item {
            display: grid;
            grid-template-columns: 36px 1fr auto;
            gap: 12px;
            align-items: center;
            padding: 17px 20px;
            border-bottom: 1px solid var(--line);
        }

        .rank-no {
            width: 32px;
            height: 32px;
            display: grid;
            place-items: center;
            border-radius: 10px;
            color: #fff;
            background: var(--ink);
            font-size: 12px;
            font-weight: 900;
        }

        .ranking-item:nth-child(1) .rank-no {
            color: #684300;
            background: linear-gradient(145deg, #ffe7a0, var(--gold));
        }

        .ranking-item:nth-child(2) .rank-no {
            color: #3b4657;
            background: linear-gradient(145deg, #f1f4f8, #aeb8c8);
        }

        .ranking-item:nth-child(3) .rank-no {
            color: #5e301a;
            background: linear-gradient(145deg, #f0bc91, #b87342);
        }

        .ranking-name {
            color: var(--ink);
            font-size: 14px;
            font-weight: 850;
        }

        .score-mini {
            color: var(--primary);
            font-size: 13px;
            font-weight: 950;
        }

        .channel-wall {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .channel-card {
            min-height: 190px;
            display: flex;
            flex-direction: column;
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .channel-card:hover {
            transform: translateY(-4px);
            border-color: rgba(91, 61, 245, .35);
            box-shadow: var(--shadow-md);
        }

        .channel-icon {
            width: 46px;
            height: 46px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            border-radius: 14px;
            color: var(--primary);
            background: rgba(91, 61, 245, .09);
            font-size: 20px;
            font-weight: 950;
        }

        .channel-card h3 {
            margin: 0 0 8px;
            color: var(--ink);
            font-size: 17px;
            font-weight: 900;
        }

        .channel-card p {
            margin: 0 0 18px;
            color: var(--muted);
            font-size: 13px;
        }

        .channel-card a {
            margin-top: auto;
            color: var(--primary);
            font-size: 13px;
            font-weight: 900;
        }

        .podium-grid {
            display: grid;
            grid-template-columns: 1.08fr .96fr .96fr;
            gap: 18px;
            align-items: stretch;
        }

        .podium-card {
            position: relative;
            overflow: hidden;
            padding: 28px;
            border: 1px solid var(--line);
            border-radius: 24px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .podium-card.first {
            color: #fff;
            border-color: transparent;
            background: linear-gradient(150deg, #17112f, #4b32c8 65%, #167d80);
            box-shadow: 0 25px 60px rgba(38, 25, 107, .24);
        }

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

        .podium-title {
            margin: 18px 0 10px;
            color: var(--ink);
            font-size: 20px;
            line-height: 1.45;
            font-weight: 950;
        }

        .first .podium-title {
            color: #fff;
        }

        .medal {
            width: 54px;
            height: 54px;
            display: grid;
            place-items: center;
            border-radius: 17px;
            font-size: 27px;
            background: #fff7dc;
        }

        .score-wrap {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 12px;
            margin: 18px 0;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--line);
        }

        .first .score-wrap {
            border-color: rgba(255, 255, 255, .18);
        }

        .big-score {
            color: var(--primary);
            font-size: 54px;
            line-height: .9;
            font-weight: 950;
            letter-spacing: -.06em;
        }

        .first .big-score {
            color: #8ef3e7;
        }

        .big-score small {
            font-size: 14px;
            letter-spacing: 0;
        }

        .stars {
            color: var(--gold);
            font-size: 15px;
            letter-spacing: 1px;
        }

        .parameter-list {
            display: grid;
            gap: 10px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .parameter-list li {
            display: flex;
            justify-content: space-between;
            gap: 14px;
            color: var(--muted);
            font-size: 13px;
        }

        .parameter-list strong {
            color: var(--ink);
        }

        .first .parameter-list li {
            color: #bfc9db;
        }

        .first .parameter-list strong {
            color: #fff;
        }

        .fit-note {
            margin-top: 20px;
            padding: 14px;
            border-radius: 13px;
            color: #48546b;
            background: var(--surface-soft);
            font-size: 12px;
        }

        .first .fit-note {
            color: #d8e0ee;
            background: rgba(255, 255, 255, .09);
        }

        .comparison-table {
            overflow-x: auto;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .comparison-row {
            min-width: 800px;
            display: grid;
            grid-template-columns: 1.25fr repeat(3, 1fr);
            border-bottom: 1px solid var(--line);
        }

        .comparison-row:last-child {
            border-bottom: 0;
        }

        .comparison-row.header {
            color: #fff;
            background: var(--ink);
            font-weight: 900;
        }

        .comparison-cell {
            padding: 17px 20px;
            border-right: 1px solid var(--line);
            font-size: 13px;
        }

        .comparison-row.header .comparison-cell {
            border-color: rgba(255, 255, 255, .12);
        }

        .comparison-cell:last-child {
            border-right: 0;
        }

        .comparison-cell:first-child {
            font-weight: 850;
        }

        .other-ranks {
            display: grid;
            gap: 12px;
        }

        .rank-line {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 18px;
            align-items: center;
            padding: 20px 24px;
            border: 1px solid var(--line);
            border-radius: 17px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .rank-line:hover {
            transform: translateX(4px);
            border-color: rgba(91, 61, 245, .3);
        }

        .rank-line h3 {
            margin: 0 0 5px;
            color: var(--ink);
            font-size: 16px;
            font-weight: 900;
        }

        .rank-line p {
            margin: 0;
            color: var(--muted);
            font-size: 13px;
        }

        .rank-score {
            text-align: right;
            color: var(--primary);
            font-size: 24px;
            font-weight: 950;
        }

        .rank-score span {
            display: block;
            color: var(--gold);
            font-size: 12px;
        }

        .topic-band {
            padding: 58px 0;
            color: #fff;
            background: linear-gradient(120deg, var(--primary-dark), #5b3df5 55%, #147e84);
        }

        .topic-band-grid {
            display: grid;
            grid-template-columns: .65fr 1.35fr;
            gap: 40px;
            align-items: center;
        }

        .topic-band h2 {
            margin: 0;
            font-size: clamp(28px, 4vw, 43px);
            line-height: 1.14;
            letter-spacing: -.04em;
            font-weight: 950;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud a {
            padding: 10px 14px;
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            color: #fff;
            background: rgba(255, 255, 255, .1);
            font-size: 13px;
            font-weight: 750;
        }

        .tag-cloud a:hover {
            transform: translateY(-2px);
            background: rgba(255, 255, 255, .2);
        }

        .timeline {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            top: 25px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--line);
        }

        .timeline-card {
            position: relative;
            padding: 54px 22px 22px;
            border: 1px solid var(--line);
            border-radius: 18px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .timeline-dot {
            position: absolute;
            top: 16px;
            left: 22px;
            width: 19px;
            height: 19px;
            border: 5px solid #fff;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-card h3 {
            margin: 0 0 8px;
            color: var(--ink);
            font-size: 16px;
            font-weight: 900;
        }

        .timeline-card p {
            margin: 0;
            color: var(--muted);
            font-size: 13px;
        }

        .timeline-state {
            display: inline-block;
            margin-top: 15px;
            color: var(--green);
            font-size: 12px;
            font-weight: 900;
        }

        .update-grid {
            display: grid;
            grid-template-columns: 1.25fr .75fr;
            gap: 22px;
        }

        .update-stream {
            display: grid;
            gap: 12px;
        }

        .update-item {
            display: grid;
            grid-template-columns: 110px 1fr 90px;
            gap: 18px;
            align-items: center;
            padding: 20px;
            border: 1px solid var(--line);
            border-radius: 16px;
            background: #fff;
        }

        .update-time {
            color: var(--primary);
            font-size: 12px;
            font-weight: 900;
        }

        .update-title {
            color: var(--ink);
            font-size: 14px;
            font-weight: 850;
        }

        .update-status {
            text-align: right;
            color: var(--muted);
            font-size: 12px;
        }

        .notice-card {
            height: 100%;
            padding: 28px;
            border-radius: var(--radius-md);
            color: #fff;
            background: var(--ink);
            box-shadow: var(--shadow-md);
        }

        .notice-card h3 {
            margin: 0 0 12px;
            font-size: 22px;
            font-weight: 950;
        }

        .notice-card p {
            color: #aeb9ca;
            font-size: 14px;
        }

        .notice-card ul {
            display: grid;
            gap: 11px;
            margin: 22px 0 0;
            padding: 0;
            list-style: none;
        }

        .notice-card li {
            padding: 11px 13px;
            border-radius: 11px;
            background: rgba(255, 255, 255, .07);
            font-size: 13px;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 17px;
        }

        .guarantee-card {
            padding: 25px;
            border-top: 4px solid var(--primary);
            border-radius: 4px 4px 18px 18px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .guarantee-card:nth-child(2) {
            border-color: var(--cyan);
        }

        .guarantee-card:nth-child(3) {
            border-color: var(--gold);
        }

        .guarantee-card h3 {
            margin: 0 0 9px;
            color: var(--ink);
            font-size: 17px;
            font-weight: 900;
        }

        .guarantee-card p {
            margin: 0;
            color: var(--muted);
            font-size: 13px;
        }

        .answer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .answer-card {
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: 18px;
            background: #fff;
        }

        .answer-card h3 {
            margin: 0 0 9px;
            color: var(--ink);
            font-size: 17px;
            font-weight: 900;
        }

        .answer-card p {
            margin: 0;
            color: var(--muted);
            font-size: 14px;
        }

        .faq-list {
            display: grid;
            gap: 12px;
        }

        .faq-item {
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: 17px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 22px;
            border: 0;
            color: var(--ink);
            background: transparent;
            text-align: left;
            font-weight: 900;
        }

        .faq-question:hover {
            color: var(--primary);
            background: rgba(91, 61, 245, .035);
        }

        .faq-symbol {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            display: grid;
            place-items: center;
            border-radius: 9px;
            color: var(--primary);
            background: rgba(91, 61, 245, .09);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-symbol {
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 22px 21px;
            color: var(--muted);
            font-size: 14px;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .media-wall {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 12px;
        }

        .media-item {
            min-height: 100px;
            display: grid;
            place-items: center;
            padding: 18px;
            border: 1px solid var(--line);
            border-radius: 16px;
            color: #667085;
            background: #fff;
            font-size: 14px;
            font-weight: 900;
            text-align: center;
        }

        .media-item:hover {
            color: var(--primary);
            border-color: rgba(91, 61, 245, .35);
            transform: translateY(-3px);
        }

        .download-section {
            padding: 86px 0;
            color: #fff;
            background: var(--ink);
        }

        .download-shell {
            position: relative;
            overflow: hidden;
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 48px;
            align-items: center;
            padding: 52px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 30px;
            background:
                radial-gradient(circle at 90% 10%, rgba(91, 61, 245, .42), transparent 35%),
                linear-gradient(140deg, #111c31, #0b1322);
        }

        .download-shell h2 {
            margin: 0;
            font-size: clamp(31px, 4vw, 48px);
            line-height: 1.13;
            letter-spacing: -.045em;
            font-weight: 950;
        }

        .download-shell p {
            margin: 16px 0 0;
            color: #aeb9ca;
        }

        .download-form {
            display: grid;
            gap: 12px;
            padding: 26px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 20px;
            background: rgba(255, 255, 255, .07);
        }

        .download-form label {
            color: #d8dfeb;
            font-size: 13px;
            font-weight: 800;
        }

        .download-form input,
        .download-form select {
            width: 100%;
            min-height: 50px;
            padding: 0 14px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 11px;
            color: #fff;
            background: rgba(3, 9, 18, .55);
        }

        .download-form select option {
            color: var(--ink);
            background: #fff;
        }

        .site-footer {
            padding: 52px 0 28px;
            color: #a7b2c3;
            background: #050b14;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr .8fr .8fr;
            gap: 50px;
        }

        .footer-brand {
            color: #fff;
            font-size: 19px;
            font-weight: 950;
        }

        .footer-copy {
            max-width: 520px;
            margin-top: 14px;
            font-size: 13px;
        }

        .footer-title {
            margin: 0 0 13px;
            color: #fff;
            font-size: 14px;
            font-weight: 900;
        }

        .footer-list {
            display: grid;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
            font-size: 13px;
        }

        .footer-list a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 38px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, .09);
            font-size: 12px;
        }

        @media (max-width: 1024px) {
            .stage-pills {
                display: none;
            }

            .hero-grid {
                grid-template-columns: .8fr 1.2fr;
                gap: 38px;
            }

            .report-cover {
                min-height: 450px;
                padding: 28px;
            }

            .metric-grid,
            .channel-wall {
                grid-template-columns: repeat(2, 1fr);
            }

            .podium-grid,
            .guarantee-grid {
                grid-template-columns: 1fr;
            }

            .podium-card.first {
                grid-column: auto;
            }

            .timeline {
                grid-template-columns: repeat(2, 1fr);
            }

            .timeline::before {
                display: none;
            }

            .media-wall {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container-site {
                width: min(100% - 28px, 1180px);
            }

            .desktop-nav {
                display: none;
            }

            .menu-button {
                display: grid;
                place-items: center;
            }

            .hero {
                padding: 48px 0 56px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
            }

            .report-cover {
                min-height: 340px;
                order: 2;
            }

            .hero-copy {
                order: 1;
            }

            .hero-form {
                grid-template-columns: 1fr;
            }

            main section {
                padding: 66px 0;
            }

            .metric-grid,
            .news-ranking-layout,
            .channel-wall,
            .topic-band-grid,
            .update-grid,
            .answer-grid,
            .download-shell,
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .news-item {
                grid-template-columns: 78px 1fr;
            }

            .news-item .tag {
                grid-column: 2;
                justify-self: start;
            }

            .timeline {
                grid-template-columns: 1fr;
            }

            .update-item {
                grid-template-columns: 86px 1fr;
            }

            .update-status {
                grid-column: 2;
                text-align: left;
            }

            .download-shell {
                padding: 32px;
            }

            .footer-bottom {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                max-width: 185px;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .nav-shell {
                min-height: 68px;
            }

            .hero h1 {
                font-size: 37px;
            }

            .report-cover {
                min-height: 300px;
                padding: 23px;
            }

            .report-title {
                font-size: 31px;
            }

            .metric-grid,
            .media-wall {
                grid-template-columns: 1fr;
            }

            .section-heading h2 {
                font-size: 30px;
            }

            .rank-line {
                grid-template-columns: 1fr;
            }

            .rank-score {
                text-align: left;
            }

            .comparison-row {
                min-width: 720px;
            }

            .download-shell {
                padding: 24px;
                border-radius: 22px;
            }

            .news-item {
                grid-template-columns: 1fr;
                gap: 7px;
            }

            .news-item .tag {
                grid-column: 1;
            }
        }

/* roulang page: category1 */
:root {
 --ink: #09111f;
 --ink-soft: #172338;
 --paper: #f4f7fb;
 --surface: #ffffff;
 --surface-soft: #edf2f8;
 --text: #182236;
 --muted: #657087;
 --line: #dce4ef;
 --primary: #5b3df5;
 --primary-dark: #3f28c7;
 --cyan: #13c7c9;
 --gold: #f4b942;
 --green: #17a673;
 --red: #e55b67;
 --radius-sm: 12px;
 --radius-md: 20px;
 --radius-lg: 30px;
 --shadow-sm: 0 8px 24px rgba(13, 26, 48, .07);
 --shadow-md: 0 18px 50px rgba(13, 26, 48, .12);
 --shadow-dark: 0 22px 70px rgba(0, 0, 0, .22);
 --transition: .25s ease;
}

* {
 box-sizing: border-box;
}

html {
 scroll-behavior: smooth;
}

body {
 margin: 0;
 color: var(--text);
 background: var(--paper);
 font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
 line-height: 1.72;
 -webkit-font-smoothing: antialiased;
 overflow-x: hidden;
}

body::before {
 content: "";
 position: fixed;
 inset: 0;
 z-index: -2;
 pointer-events: none;
 background:
  radial-gradient(circle at 8% 14%, rgba(91, 61, 245, .09), transparent 28%),
  radial-gradient(circle at 92% 30%, rgba(19, 199, 201, .08), transparent 24%),
  linear-gradient(180deg, #f7f9fc 0%, #f1f5fa 100%);
}

a {
 color: inherit;
 text-decoration: none;
 transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

button,
input,
select,
textarea {
 font: inherit;
}

button {
 cursor: pointer;
}

img,
svg,
video {
 display: block;
 max-width: 100%;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
 outline: 3px solid rgba(19, 199, 201, .45);
 outline-offset: 3px;
}

.container-site {
 width: min(1180px, calc(100% - 40px));
 margin-inline: auto;
}

.site-header {
 position: sticky;
 top: 0;
 z-index: 50;
 border-bottom: 1px solid rgba(220, 228, 239, .9);
 background: rgba(255, 255, 255, .9);
 backdrop-filter: blur(18px);
 box-shadow: 0 8px 30px rgba(13, 26, 48, .04);
}

.nav-shell {
 min-height: 76px;
 display: flex;
 align-items: center;
 gap: 26px;
}

.brand {
 display: inline-flex;
 align-items: center;
 gap: 11px;
 flex: 0 0 auto;
 font-weight: 900;
 letter-spacing: -.04em;
 color: var(--ink);
}

.brand-mark {
 width: 42px;
 height: 42px;
 display: grid;
 place-items: center;
 border-radius: 13px;
 color: #fff;
 font-size: 14px;
 background: linear-gradient(145deg, var(--primary), #8c68ff 58%, var(--cyan));
 box-shadow: 0 10px 25px rgba(91, 61, 245, .28);
}

.brand-text {
 font-size: 18px;
 white-space: nowrap;
}

.desktop-nav {
 display: flex;
 align-items: center;
 gap: 6px;
 margin-left: auto;
}

.nav-link {
 min-height: 42px;
 display: inline-flex;
 align-items: center;
 padding: 0 16px;
 border-radius: 12px;
 color: var(--muted);
 font-size: 14px;
 font-weight: 700;
}

.nav-link:hover {
 color: var(--primary);
 background: rgba(91, 61, 245, .07);
}

.nav-link.active {
 color: #fff;
 background: var(--ink);
 box-shadow: 0 8px 18px rgba(9, 17, 31, .16);
}

.stage-pills {
 display: flex;
 align-items: center;
 gap: 6px;
 padding-left: 16px;
 border-left: 1px solid var(--line);
}

.stage-pill {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 7px 10px;
 border: 1px solid var(--line);
 border-radius: 999px;
 color: var(--muted);
 background: #fff;
 font-size: 12px;
 font-weight: 700;
 white-space: nowrap;
}

.stage-pill.current {
 color: #087658;
 border-color: rgba(23, 166, 115, .25);
 background: rgba(23, 166, 115, .08);
}

.pulse {
 width: 7px;
 height: 7px;
 border-radius: 50%;
 background: var(--green);
 box-shadow: 0 0 0 5px rgba(23, 166, 115, .12);
 animation: pulse 1.8s infinite;
}

@keyframes pulse {
 0%, 100% { box-shadow: 0 0 0 4px rgba(23, 166, 115, .12); }
 50% { box-shadow: 0 0 0 8px rgba(23, 166, 115, 0); }
}

.menu-button {
 display: none;
 width: 43px;
 height: 43px;
 margin-left: auto;
 border: 1px solid var(--line);
 border-radius: 12px;
 color: var(--ink);
 background: #fff;
}

.menu-button:hover {
 color: var(--primary);
 border-color: rgba(91, 61, 245, .3);
 background: rgba(91, 61, 245, .06);
}

.mobile-nav {
 display: none;
 padding: 0 20px 18px;
}

.mobile-nav.open {
 display: grid;
 gap: 8px;
}

/* 频道首屏 */
.channel-hero {
 position: relative;
 min-height: 650px;
 display: flex;
 align-items: flex-end;
 overflow: hidden;
 color: #fff;
 background: var(--ink);
}

.hero-video,
.hero-fallback {
 position: absolute;
 inset: 0;
 width: 100%;
 height: 100%;
 object-fit: cover;
}

.hero-fallback {
 background:
  linear-gradient(135deg, rgba(91, 61, 245, .28), transparent 48%),
  radial-gradient(circle at 78% 25%, rgba(19, 199, 201, .28), transparent 24%),
  #09111f;
}

.hero-video {
 opacity: .34;
 filter: saturate(.85) contrast(1.08);
}

.hero-overlay {
 position: absolute;
 inset: 0;
 background:
  linear-gradient(90deg, rgba(6, 12, 23, .97) 0%, rgba(6, 12, 23, .76) 49%, rgba(6, 12, 23, .36) 100%),
  linear-gradient(0deg, rgba(6, 12, 23, .96) 0%, transparent 58%);
}

.hero-content {
 position: relative;
 z-index: 2;
 width: min(860px, 100%);
 padding: 90px 0 72px;
}

.eyebrow {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 margin-bottom: 20px;
 padding: 7px 12px;
 border: 1px solid rgba(255, 255, 255, .18);
 border-radius: 999px;
 color: #d8d4ff;
 background: rgba(255, 255, 255, .08);
 backdrop-filter: blur(12px);
 font-size: 13px;
 font-weight: 800;
 letter-spacing: .04em;
}

.channel-hero h1 {
 max-width: 830px;
 margin: 0;
 font-size: clamp(40px, 6.4vw, 76px);
 line-height: 1.04;
 letter-spacing: -.055em;
 font-weight: 950;
}

.hero-lead {
 max-width: 780px;
 margin: 25px 0 0;
 color: #e0e6f1;
 font-size: 18px;
 line-height: 1.9;
}

.hero-copy {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 18px;
 max-width: 820px;
 margin-top: 22px;
}

.hero-copy p {
 margin: 0;
 padding: 17px 18px;
 border: 1px solid rgba(255, 255, 255, .12);
 border-radius: 16px;
 color: #bdc8d9;
 background: rgba(255, 255, 255, .055);
 backdrop-filter: blur(12px);
 font-size: 14px;
}

.hero-actions {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 12px;
 margin-top: 28px;
}

.btn {
 min-height: 48px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 9px;
 padding: 0 20px;
 border: 1px solid transparent;
 border-radius: 14px;
 font-size: 14px;
 font-weight: 850;
 transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn:hover {
 transform: translateY(-2px);
}

.btn-primary {
 color: #fff;
 background: linear-gradient(135deg, var(--primary), #7558ff);
 box-shadow: 0 14px 30px rgba(91, 61, 245, .35);
}

.btn-primary:hover {
 background: linear-gradient(135deg, var(--primary-dark), var(--primary));
 box-shadow: 0 18px 38px rgba(91, 61, 245, .43);
}

.btn-light {
 color: var(--ink);
 background: #fff;
 box-shadow: 0 12px 28px rgba(0, 0, 0, .18);
}

.btn-light:hover {
 background: #f3f5fa;
}

.btn-outline {
 color: var(--primary);
 border-color: rgba(91, 61, 245, .25);
 background: rgba(91, 61, 245, .05);
}

.btn-outline:hover {
 border-color: var(--primary);
 background: rgba(91, 61, 245, .1);
}

.video-control {
 width: 50px;
 height: 50px;
 display: inline-grid;
 place-items: center;
 border: 1px solid rgba(255, 255, 255, .22);
 border-radius: 50%;
 color: #fff;
 background: rgba(255, 255, 255, .1);
 backdrop-filter: blur(12px);
}

.video-control:hover {
 transform: scale(1.06);
 background: rgba(255, 255, 255, .18);
}

.section {
 position: relative;
 padding: 88px 0;
}

.section-soft {
 background: rgba(237, 242, 248, .72);
 border-top: 1px solid rgba(220, 228, 239, .8);
 border-bottom: 1px solid rgba(220, 228, 239, .8);
}

.section-dark {
 color: #fff;
 background:
  radial-gradient(circle at 90% 5%, rgba(91, 61, 245, .3), transparent 30%),
  radial-gradient(circle at 10% 95%, rgba(19, 199, 201, .16), transparent 26%),
  var(--ink);
}

.section-head {
 display: flex;
 align-items: end;
 justify-content: space-between;
 gap: 30px;
 margin-bottom: 34px;
}

.section-kicker {
 display: block;
 margin-bottom: 10px;
 color: var(--primary);
 font-size: 13px;
 font-weight: 900;
 letter-spacing: .12em;
 text-transform: uppercase;
}

.section-dark .section-kicker {
 color: #9e8cff;
}

.section-title {
 margin: 0;
 color: var(--ink);
 font-size: clamp(29px, 4vw, 46px);
 line-height: 1.14;
 letter-spacing: -.04em;
 font-weight: 950;
}

.section-dark .section-title {
 color: #fff;
}

.section-summary {
 max-width: 660px;
 margin: 12px 0 0;
 color: var(--muted);
 font-size: 16px;
}

.section-dark .section-summary {
 color: #aeb9ca;
}

.badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 6px 10px;
 border-radius: 999px;
 color: var(--primary);
 background: rgba(91, 61, 245, .09);
 font-size: 12px;
 font-weight: 850;
}

.badge-green {
 color: #087658;
 background: rgba(23, 166, 115, .1);
}

.badge-gold {
 color: #926400;
 background: rgba(244, 185, 66, .16);
}

/* 指标看板 */
.metric-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 16px;
}

.metric-card {
 position: relative;
 overflow: hidden;
 padding: 26px;
 border: 1px solid var(--line);
 border-radius: var(--radius-md);
 background: rgba(255, 255, 255, .88);
 box-shadow: var(--shadow-sm);
}

.metric-card::after {
 content: "";
 position: absolute;
 right: -25px;
 bottom: -30px;
 width: 95px;
 height: 95px;
 border-radius: 50%;
 background: rgba(91, 61, 245, .06);
}

.metric-card:hover {
 transform: translateY(-4px);
 border-color: rgba(91, 61, 245, .22);
 box-shadow: var(--shadow-md);
}

.metric-label {
 color: var(--muted);
 font-size: 13px;
 font-weight: 750;
}

.metric-value {
 display: block;
 margin-top: 6px;
 color: var(--ink);
 font-size: 34px;
 line-height: 1.2;
 font-weight: 950;
 letter-spacing: -.04em;
}

.metric-note {
 margin: 9px 0 0;
 color: var(--muted);
 font-size: 13px;
}

/* 服务矩阵及榜单 */
.ranking-layout {
 display: grid;
 grid-template-columns: 1.15fr .85fr;
 gap: 22px;
 align-items: start;
}

.rank-card {
 position: relative;
 padding: 30px;
 border: 1px solid var(--line);
 border-radius: var(--radius-lg);
 background: var(--surface);
 box-shadow: var(--shadow-sm);
}

.rank-card:hover {
 transform: translateY(-4px);
 box-shadow: var(--shadow-md);
}

.rank-card.winner {
 color: #fff;
 border-color: transparent;
 background:
  radial-gradient(circle at 90% 10%, rgba(19, 199, 201, .25), transparent 30%),
  linear-gradient(145deg, #101b30, #161b43);
 box-shadow: var(--shadow-dark);
}

.rank-line {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
}

.rank-name {
 margin: 0;
 color: var(--ink);
 font-size: 23px;
 line-height: 1.3;
 font-weight: 950;
}

.winner .rank-name {
 color: #fff;
}

.medal {
 font-size: 31px;
 line-height: 1;
}

.score {
 flex: 0 0 auto;
 text-align: right;
}

.score strong {
 display: block;
 color: var(--primary);
 font-size: 32px;
 line-height: 1;
 font-weight: 950;
}

.winner .score strong {
 color: #8df1e9;
}

.score span {
 color: var(--gold);
 font-size: 14px;
 letter-spacing: 1px;
}

.rank-description {
 margin: 20px 0;
 color: var(--muted);
}

.winner .rank-description {
 color: #bdc8d9;
}

.parameter-list {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 10px;
 margin: 0;
 padding: 0;
 list-style: none;
}

.parameter-list li {
 padding: 11px 12px;
 border: 1px solid var(--line);
 border-radius: 11px;
 color: var(--ink-soft);
 background: var(--surface-soft);
 font-size: 13px;
 font-weight: 750;
}

.winner .parameter-list li {
 color: #e9edf6;
 border-color: rgba(255, 255, 255, .1);
 background: rgba(255, 255, 255, .07);
}

.fit-box {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 12px;
 margin-top: 18px;
}

.fit-item {
 padding: 14px;
 border-radius: 13px;
 background: rgba(23, 166, 115, .08);
 font-size: 13px;
}

.fit-item.risk {
 background: rgba(229, 91, 103, .08);
}

.fit-item strong {
 display: block;
 margin-bottom: 4px;
 color: var(--ink);
}

.winner .fit-item {
 color: #c9d3df;
 background: rgba(23, 166, 115, .12);
}

.winner .fit-item.risk {
 background: rgba(229, 91, 103, .12);
}

.winner .fit-item strong {
 color: #fff;
}

.rank-stack {
 display: grid;
 gap: 18px;
}

.dimension-strip {
 display: flex;
 flex-wrap: wrap;
 gap: 9px;
 margin-top: 26px;
 padding-top: 24px;
 border-top: 1px solid var(--line);
}

.dimension {
 padding: 8px 11px;
 border: 1px solid var(--line);
 border-radius: 10px;
 color: var(--muted);
 background: #fff;
 font-size: 12px;
 font-weight: 750;
}

/* 对比 */
.compare-shell {
 overflow: hidden;
 border: 1px solid var(--line);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-sm);
}

.compare-top {
 display: grid;
 grid-template-columns: 1.1fr repeat(3, 1fr);
 color: #fff;
 background: var(--ink);
}

.compare-top > div {
 padding: 20px;
 border-right: 1px solid rgba(255, 255, 255, .1);
}

.compare-top strong {
 display: block;
 font-size: 15px;
}

.compare-top span {
 color: #9eabc0;
 font-size: 12px;
}

.compare-row {
 display: grid;
 grid-template-columns: 1.1fr repeat(3, 1fr);
 border-top: 1px solid var(--line);
}

.compare-row > div {
 padding: 17px 20px;
 border-right: 1px solid var(--line);
 font-size: 14px;
}

.compare-row > div:first-child {
 color: var(--ink);
 background: var(--surface-soft);
 font-weight: 850;
}

.compare-good {
 color: var(--green);
 font-weight: 850;
}

.compare-mid {
 color: #926400;
 font-weight: 850;
}

.compare-note {
 margin: 18px 0 0;
 color: var(--muted);
 font-size: 13px;
}

/* 里程碑 */
.timeline {
 position: relative;
 display: grid;
 gap: 0;
 margin-top: 20px;
}

.timeline::before {
 content: "";
 position: absolute;
 left: 23px;
 top: 22px;
 bottom: 22px;
 width: 2px;
 background: linear-gradient(var(--primary), var(--cyan));
}

.timeline-item {
 position: relative;
 display: grid;
 grid-template-columns: 48px 1fr auto;
 gap: 20px;
 align-items: center;
 padding: 18px 0;
}

.timeline-dot {
 position: relative;
 z-index: 1;
 width: 48px;
 height: 48px;
 display: grid;
 place-items: center;
 border: 6px solid var(--paper);
 border-radius: 50%;
 color: #fff;
 background: var(--primary);
 box-shadow: 0 0 0 1px rgba(91, 61, 245, .18);
 font-size: 13px;
 font-weight: 900;
}

.timeline-content {
 padding: 20px 23px;
 border: 1px solid var(--line);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
 margin: 0 0 5px;
 color: var(--ink);
 font-size: 18px;
}

.timeline-content p {
 margin: 0;
 color: var(--muted);
 font-size: 14px;
}

.timeline-status {
 min-width: 104px;
 text-align: center;
 padding: 8px 12px;
 border-radius: 999px;
 color: var(--primary);
 background: rgba(91, 61, 245, .09);
 font-size: 12px;
 font-weight: 850;
}

/* 资讯 */
.news-layout {
 display: grid;
 grid-template-columns: 1.08fr .92fr;
 gap: 24px;
}

.news-feature {
 position: relative;
 min-height: 420px;
 display: flex;
 align-items: flex-end;
 overflow: hidden;
 padding: 32px;
 border-radius: var(--radius-lg);
 color: #fff;
 background:
  linear-gradient(0deg, rgba(7, 13, 25, .98), rgba(7, 13, 25, .18)),
  radial-gradient(circle at 72% 20%, rgba(19, 199, 201, .4), transparent 30%),
  linear-gradient(135deg, #263e69, #5b3df5);
 box-shadow: var(--shadow-md);
}

.news-feature::after {
 content: "S16";
 position: absolute;
 right: -15px;
 top: -46px;
 color: rgba(255, 255, 255, .08);
 font-size: 180px;
 line-height: 1;
 font-weight: 950;
 letter-spacing: -.09em;
}

.news-feature-content {
 position: relative;
 z-index: 1;
}

.news-feature h3 {
 max-width: 620px;
 margin: 12px 0;
 font-size: 31px;
 line-height: 1.2;
 letter-spacing: -.03em;
}

.news-feature p {
 max-width: 650px;
 margin: 0;
 color: #c4cedc;
}

.news-list {
 display: grid;
 gap: 14px;
}

.news-item {
 display: block;
 padding: 22px;
 border: 1px solid var(--line);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}

.news-item:hover {
 transform: translateX(5px);
 border-color: rgba(91, 61, 245, .25);
 box-shadow: var(--shadow-md);
}

.news-meta {
 display: flex;
 align-items: center;
 gap: 9px;
 color: var(--muted);
 font-size: 12px;
 font-weight: 750;
}

.news-item h3 {
 margin: 8px 0 6px;
 color: var(--ink);
 font-size: 18px;
 line-height: 1.45;
}

.news-item p {
 margin: 0;
 color: var(--muted);
 font-size: 13px;
}

/* 平台保障 */
.guarantee-grid {
 display: grid;
 grid-template-columns: .88fr 1.12fr;
 gap: 34px;
 align-items: center;
}

.security-panel {
 padding: 33px;
 border: 1px solid rgba(255, 255, 255, .11);
 border-radius: var(--radius-lg);
 background: rgba(255, 255, 255, .055);
 backdrop-filter: blur(15px);
}

.security-ring {
 width: 116px;
 height: 116px;
 display: grid;
 place-items: center;
 margin-bottom: 24px;
 border: 9px solid rgba(255, 255, 255, .1);
 border-top-color: var(--cyan);
 border-right-color: var(--primary);
 border-radius: 50%;
 color: #fff;
 font-size: 27px;
 font-weight: 950;
}

.security-panel p {
 margin: 0;
 color: #afbbcc;
}

.check-list {
 display: grid;
 gap: 13px;
 margin: 0;
 padding: 0;
 list-style: none;
}

.check-list li {
 position: relative;
 padding: 17px 18px 17px 52px;
 border: 1px solid rgba(255, 255, 255, .1);
 border-radius: 15px;
 color: #dce3ed;
 background: rgba(255, 255, 255, .05);
}

.check-list li::before {
 content: "✓";
 position: absolute;
 left: 18px;
 top: 17px;
 width: 23px;
 height: 23px;
 display: grid;
 place-items: center;
 border-radius: 8px;
 color: #001c17;
 background: var(--cyan);
 font-size: 13px;
 font-weight: 950;
}

.check-list strong {
 color: #fff;
}

/* 快速解答 */
.answer-grid {
 display: grid;
 grid-template-columns: 1.15fr .85fr;
 gap: 24px;
}

.answer-main,
.answer-side {
 border: 1px solid var(--line);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-sm);
}

.answer-main {
 padding: 34px;
}

.answer-main h3 {
 margin: 0 0 15px;
 color: var(--ink);
 font-size: 26px;
}

.answer-main p {
 margin: 0 0 14px;
 color: var(--muted);
}

.official-path {
 display: grid;
 gap: 10px;
 margin-top: 22px;
}

.path-row {
 display: grid;
 grid-template-columns: 34px 1fr;
 gap: 12px;
 align-items: start;
 padding: 13px;
 border-radius: 13px;
 background: var(--surface-soft);
}

.path-number {
 width: 34px;
 height: 34px;
 display: grid;
 place-items: center;
 border-radius: 10px;
 color: #fff;
 background: var(--primary);
 font-size: 13px;
 font-weight: 900;
}

.path-row strong {
 display: block;
 color: var(--ink);
}

.path-row span {
 color: var(--muted);
 font-size: 13px;
}

.answer-side {
 padding: 28px;
 color: #fff;
 background: var(--ink);
}

.answer-side h3 {
 margin: 0 0 16px;
 font-size: 21px;
}

.risk-list {
 display: grid;
 gap: 12px;
 margin: 0;
 padding: 0;
 list-style: none;
}

.risk-list li {
 padding: 13px 15px;
 border-left: 3px solid var(--red);
 border-radius: 0 12px 12px 0;
 color: #c3cedd;
 background: rgba(255, 255, 255, .06);
 font-size: 14px;
}

/* FAQ */
.faq-list {
 display: grid;
 gap: 13px;
}

.faq-item {
 overflow: hidden;
 border: 1px solid var(--line);
 border-radius: 17px;
 background: #fff;
 box-shadow: 0 6px 18px rgba(13, 26, 48, .045);
}

.faq-question {
 width: 100%;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 padding: 21px 23px;
 border: 0;
 color: var(--ink);
 background: transparent;
 text-align: left;
 font-size: 16px;
 font-weight: 850;
}

.faq-question:hover {
 color: var(--primary);
 background: rgba(91, 61, 245, .035);
}

.faq-icon {
 width: 28px;
 height: 28px;
 flex: 0 0 auto;
 display: grid;
 place-items: center;
 border-radius: 50%;
 color: var(--primary);
 background: rgba(91, 61, 245, .09);
 transition: transform var(--transition);
}

.faq-item.open .faq-icon {
 transform: rotate(45deg);
}

.faq-answer {
 display: none;
 padding: 0 23px 22px;
 color: var(--muted);
 font-size: 14px;
}

.faq-item.open .faq-answer {
 display: block;
}

/* 转化表单 */
.subscribe-shell {
 position: relative;
 overflow: hidden;
 display: grid;
 grid-template-columns: 1fr .9fr;
 gap: 45px;
 align-items: center;
 padding: 50px;
 border-radius: var(--radius-lg);
 color: #fff;
 background:
  radial-gradient(circle at 95% 10%, rgba(19, 199, 201, .28), transparent 30%),
  linear-gradient(135deg, var(--primary-dark), var(--primary) 62%, #315cbe);
 box-shadow: 0 24px 60px rgba(63, 40, 199, .28);
}

.subscribe-shell::before {
 content: "";
 position: absolute;
 width: 280px;
 height: 280px;
 left: -130px;
 bottom: -180px;
 border: 40px solid rgba(255, 255, 255, .06);
 border-radius: 50%;
}

.subscribe-content,
.subscribe-form {
 position: relative;
 z-index: 1;
}

.subscribe-content h2 {
 margin: 12px 0;
 font-size: clamp(28px, 4vw, 44px);
 line-height: 1.15;
 letter-spacing: -.04em;
 font-weight: 950;
}

.subscribe-content p {
 margin: 0;
 color: #dedaff;
}

.subscribe-form {
 padding: 24px;
 border: 1px solid rgba(255, 255, 255, .16);
 border-radius: var(--radius-md);
 background: rgba(9, 17, 31, .22);
 backdrop-filter: blur(12px);
}

.form-label {
 display: block;
 margin-bottom: 8px;
 color: #fff;
 font-size: 13px;
 font-weight: 800;
}

.form-row {
 display: grid;
 grid-template-columns: 1fr 150px;
 gap: 10px;
}

.form-input,
.form-select {
 width: 100%;
 min-height: 49px;
 padding: 0 14px;
 border: 1px solid rgba(255, 255, 255, .18);
 border-radius: 12px;
 color: var(--ink);
 background: #fff;
}

.form-input::placeholder {
 color: #8a94a5;
}

.form-input:focus,
.form-select:focus {
 border-color: var(--cyan);
 box-shadow: 0 0 0 4px rgba(19, 199, 201, .14);
 outline: none;
}

.form-submit {
 width: 100%;
 min-height: 49px;
 margin-top: 11px;
 border: 0;
 border-radius: 12px;
 color: var(--ink);
 background: #fff;
 font-weight: 900;
 box-shadow: 0 10px 25px rgba(0, 0, 0, .13);
}

.form-submit:hover {
 transform: translateY(-2px);
 background: #ecfffc;
}

.form-note {
 margin: 11px 0 0;
 color: #d8d5f7;
 font-size: 12px;
}

.form-message {
 display: none;
 margin-top: 12px;
 padding: 10px 12px;
 border-radius: 10px;
 color: #dffef5;
 background: rgba(0, 0, 0, .18);
 font-size: 13px;
}

/* 页脚 */
.site-footer {
 padding: 66px 0 24px;
 color: #c0cad8;
 background: #07101e;
}

.footer-grid {
 display: grid;
 grid-template-columns: 1.5fr .8fr .8fr;
 gap: 55px;
}

.footer-brand {
 margin-bottom: 14px;
 color: #fff;
 font-size: 21px;
 font-weight: 950;
 letter-spacing: -.03em;
}

.footer-copy {
 max-width: 560px;
 margin: 0;
 color: #8795a9;
 font-size: 14px;
}

.footer-title {
 margin: 0 0 15px;
 color: #fff;
 font-size: 14px;
 font-weight: 900;
}

.footer-list {
 display: grid;
 gap: 9px;
 margin: 0;
 padding: 0;
 list-style: none;
 color: #8f9db0;
 font-size: 13px;
}

.footer-list a:hover {
 color: var(--cyan);
}

.footer-bottom {
 display: flex;
 justify-content: space-between;
 gap: 20px;
 margin-top: 44px;
 padding-top: 22px;
 border-top: 1px solid rgba(255, 255, 255, .08);
 color: #69778b;
 font-size: 12px;
}

/* 响应式 */
@media (max-width: 1100px) {
 .nav-shell {
  gap: 14px;
 }
 .stage-pills {
  display: none;
 }
 .hero-content {
  padding-top: 75px;
 }
 .metric-grid {
  grid-template-columns: repeat(2, 1fr);
 }
 .ranking-layout,
 .news-layout,
 .guarantee-grid,
 .answer-grid {
  grid-template-columns: 1fr;
 }
 .rank-stack {
  grid-template-columns: 1fr 1fr;
 }
}

@media (max-width: 820px) {
 .container-site {
  width: min(100% - 30px, 1180px);
 }
 .desktop-nav {
  display: none;
 }
 .menu-button {
  display: grid;
  place-items: center;
 }
 .mobile-nav .stage-pills {
  display: flex;
  overflow-x: auto;
 }
 .channel-hero {
  min-height: auto;
 }
 .hero-content {
  padding: 70px 0 58px;
 }
 .hero-copy {
  grid-template-columns: 1fr;
 }
 .section {
  padding: 68px 0;
 }
 .section-head {
  display: block;
 }
 .rank-stack {
  grid-template-columns: 1fr;
 }
 .compare-shell {
  overflow-x: auto;
 }
 .compare-top,
 .compare-row {
  min-width: 760px;
 }
 .timeline-item {
  grid-template-columns: 48px 1fr;
 }
 .timeline-status {
  grid-column: 2;
  justify-self: start;
 }
 .subscribe-shell {
  grid-template-columns: 1fr;
  padding: 36px;
 }
 .footer-grid {
  grid-template-columns: 1fr 1fr;
 }
 .footer-grid > div:first-child {
  grid-column: 1 / -1;
 }
}

@media (max-width: 560px) {
 .container-site {
  width: min(100% - 24px, 1180px);
 }
 .nav-shell {
  min-height: 66px;
 }
 .brand-mark {
  width: 38px;
  height: 38px;
 }
 .brand-text {
  max-width: 178px;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 16px;
 }
 .channel-hero h1 {
  font-size: 39px;
 }
 .hero-lead {
  font-size: 16px;
 }
 .hero-copy {
  display: none;
 }
 .hero-actions {
  align-items: stretch;
 }
 .hero-actions .btn {
  flex: 1 1 100%;
 }
 .video-control {
  display: none;
 }
 .section {
  padding: 56px 0;
 }
 .section-title {
  font-size: 30px;
 }
 .metric-grid {
  grid-template-columns: 1fr;
 }
 .metric-card,
 .rank-card,
 .answer-main,
 .answer-side,
 .security-panel {
  padding: 22px;
 }
 .rank-line {
  align-items: flex-start;
 }
 .rank-name {
  font-size: 19px;
 }
 .score strong {
  font-size: 27px;
 }
 .parameter-list,
 .fit-box {
  grid-template-columns: 1fr;
 }
 .timeline-item {
  gap: 12px;
 }
 .timeline-content {
  padding: 17px;
 }
 .news-feature {
  min-height: 360px;
  padding: 24px;
 }
 .news-feature h3 {
  font-size: 25px;
 }
 .subscribe-shell {
  padding: 27px 20px;
 }
 .form-row {
  grid-template-columns: 1fr;
 }
 .footer-grid {
  grid-template-columns: 1fr;
  gap: 32px;
 }
 .footer-grid > div:first-child {
  grid-column: auto;
 }
 .footer-bottom {
  flex-direction: column;
 }
}