/* roulang page: index */
:root {
            --primary: #6754f6;
            --primary-dark: #4936d8;
            --primary-soft: #eeebff;
            --secondary: #13c9a3;
            --accent: #ffbd3d;
            --danger: #f05b73;
            --ink: #17172f;
            --muted: #686880;
            --surface: #ffffff;
            --surface-alt: #f6f7fb;
            --surface-dark: #111132;
            --border: #e7e7f0;
            --border-dark: rgba(255,255,255,.12);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 30px;
            --shadow-sm: 0 8px 24px rgba(29, 24, 82, .07);
            --shadow-md: 0 18px 48px rgba(38, 29, 111, .12);
            --shadow-lg: 0 30px 80px rgba(22, 17, 75, .2);
            --transition: .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 132px;
        }

        body {
            margin: 0;
            color: var(--ink);
            background: var(--surface);
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.72;
            overflow-x: hidden;
        }

        body, button, input, select, textarea {
            font-family: inherit;
        }

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

        a:hover {
            color: var(--primary);
        }

        img, svg {
            max-width: 100%;
            height: auto;
        }

        button, input, select, textarea {
            border: 0;
        }

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 3px solid rgba(103, 84, 246, .3);
            outline-offset: 3px;
        }

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

        .container {
            width: min(1180px, calc(100% - 40px));
            max-width: 1180px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255,255,255,.92);
            border-bottom: 1px solid rgba(231,231,240,.92);
            box-shadow: 0 8px 30px rgba(31, 25, 84, .05);
            backdrop-filter: blur(18px);
        }

        .brand-row {
            min-height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: var(--ink);
            font-size: 21px;
            font-weight: 850;
            letter-spacing: -.5px;
            white-space: nowrap;
        }

        .brand:hover {
            color: var(--ink);
            transform: translateY(-1px);
        }

        .brand-mark {
            width: 43px;
            height: 43px;
            display: grid;
            place-items: center;
            color: #fff;
            font-size: 18px;
            font-weight: 900;
            border-radius: 14px;
            background: linear-gradient(145deg, #7b68ff, #5138e3 62%, #17c8a6);
            box-shadow: 0 10px 25px rgba(91, 68, 230, .28);
        }

        .header-status {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--muted);
            font-size: 14px;
        }

        .status-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--secondary);
            box-shadow: 0 0 0 6px rgba(19,201,163,.12);
        }

        .chip-nav-wrap {
            border-top: 1px solid var(--border);
        }

        .chip-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 0 13px;
            overflow-x: auto;
            scrollbar-width: none;
            white-space: nowrap;
        }

        .chip-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 38px;
            padding: 8px 18px;
            border: 1px solid var(--border);
            border-radius: 999px;
            color: #55556e;
            background: #fff;
            font-size: 14px;
            font-weight: 750;
        }

        .nav-chip:hover {
            color: var(--primary);
            border-color: #cabfff;
            background: var(--primary-soft);
            transform: translateY(-1px);
        }

        .nav-chip.active {
            color: #fff;
            border-color: var(--primary);
            background: var(--primary);
            box-shadow: 0 8px 18px rgba(103,84,246,.25);
        }

        main {
            display: block;
        }

        .hero {
            position: relative;
            padding: 72px 0 58px;
            color: #fff;
            background:
                radial-gradient(circle at 12% 10%, rgba(126,104,255,.42), transparent 31%),
                radial-gradient(circle at 86% 16%, rgba(19,201,163,.2), transparent 25%),
                linear-gradient(135deg, #10102d 0%, #201753 52%, #111132 100%);
            overflow: hidden;
        }

        .hero::before,
        .hero::after {
            position: absolute;
            content: "";
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::before {
            width: 360px;
            height: 360px;
            right: -180px;
            bottom: -220px;
            border: 60px solid rgba(255,255,255,.035);
        }

        .hero::after {
            width: 150px;
            height: 150px;
            left: -70px;
            bottom: -55px;
            background: rgba(103,84,246,.15);
            filter: blur(2px);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 920px;
            margin: 0 auto;
            text-align: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 17px;
            padding: 7px 13px;
            color: #ded9ff;
            border: 1px solid rgba(255,255,255,.16);
            border-radius: 999px;
            background: rgba(255,255,255,.07);
            font-size: 13px;
            font-weight: 750;
            letter-spacing: .03em;
        }

        .hero h1 {
            max-width: 850px;
            margin: 0 auto 20px;
            font-size: clamp(36px, 5.8vw, 68px);
            line-height: 1.08;
            font-weight: 900;
            letter-spacing: -2.5px;
        }

        .hero-copy {
            max-width: 820px;
            margin: 0 auto;
            color: #d1cfe2;
            font-size: 17px;
            line-height: 1.9;
        }

        .hero-search {
            max-width: 760px;
            margin: 31px auto 0;
            padding: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255,255,255,.14);
            border-radius: 20px;
            background: #fff;
            box-shadow: var(--shadow-lg);
        }

        .hero-search i {
            margin-left: 14px;
            color: var(--muted);
            font-size: 20px;
        }

        .hero-search input {
            min-width: 0;
            flex: 1;
            height: 48px;
            padding: 0 8px;
            color: var(--ink);
            background: transparent;
            outline: 0;
        }

        .hero-search input::placeholder {
            color: #9696aa;
        }

        .btn-brand,
        .btn-soft,
        .btn-light-custom,
        .btn-outline-custom {
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 11px 20px;
            border-radius: 13px;
            font-size: 15px;
            font-weight: 800;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
        }

        .btn-brand {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #8b6cf8);
            box-shadow: 0 10px 22px rgba(103,84,246,.25);
        }

        .btn-brand:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 15px 28px rgba(103,84,246,.34);
        }

        .btn-brand:active,
        .btn-soft:active,
        .btn-light-custom:active {
            transform: translateY(0);
        }

        .btn-soft {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .btn-soft:hover {
            color: #fff;
            background: var(--primary);
        }

        .btn-light-custom {
            color: var(--ink);
            background: #fff;
            box-shadow: 0 10px 25px rgba(0,0,0,.12);
        }

        .btn-light-custom:hover {
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline-custom {
            color: #fff;
            border: 1px solid rgba(255,255,255,.28);
            background: rgba(255,255,255,.05);
        }

        .btn-outline-custom:hover {
            color: #fff;
            border-color: rgba(255,255,255,.55);
            background: rgba(255,255,255,.12);
        }

        .hot-links {
            margin-top: 18px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 9px;
        }

        .hot-link {
            padding: 6px 12px;
            color: #c9c6da;
            border-radius: 999px;
            background: rgba(255,255,255,.07);
            font-size: 13px;
        }

        .hot-link:hover {
            color: #fff;
            background: rgba(255,255,255,.14);
        }

        .live-panel {
            position: relative;
            z-index: 2;
            max-width: 1050px;
            margin: 38px auto -108px;
            padding: 21px;
            display: grid;
            grid-template-columns: 1.3fr .7fr;
            gap: 20px;
            text-align: left;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: 27px;
            background: rgba(255,255,255,.1);
            box-shadow: 0 24px 70px rgba(0,0,0,.25);
            backdrop-filter: blur(20px);
        }

        .live-cover {
            min-height: 210px;
            padding: 27px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            border-radius: 20px;
            background:
                linear-gradient(90deg, rgba(20,16,59,.95), rgba(35,22,89,.62)),
                radial-gradient(circle at 80% 30%, #13c9a3, transparent 26%),
                linear-gradient(135deg, #725dff, #211755);
            overflow: hidden;
        }

        .live-badge {
            align-self: flex-start;
            margin-bottom: auto;
            padding: 6px 11px;
            color: #fff;
            border-radius: 999px;
            background: var(--danger);
            font-size: 12px;
            font-weight: 850;
            letter-spacing: .04em;
        }

        .live-cover h2 {
            margin: 22px 0 6px;
            font-size: 27px;
            font-weight: 850;
        }

        .live-cover p {
            margin: 0;
            color: #d9d6ea;
            font-size: 14px;
        }

        .countdown-box {
            padding: 19px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            border-radius: 20px;
            background: rgba(12,12,41,.65);
        }

        .countdown-box h3 {
            margin: 0 0 8px;
            font-size: 17px;
            font-weight: 800;
        }

        .countdown-box > p {
            margin: 0 0 16px;
            color: #bdb9d1;
            font-size: 13px;
        }

        .countdown {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 7px;
            margin-bottom: 15px;
        }

        .time-unit {
            padding: 9px 4px;
            text-align: center;
            border-radius: 11px;
            background: rgba(255,255,255,.08);
        }

        .time-unit strong {
            display: block;
            color: #fff;
            font-size: 20px;
            line-height: 1.2;
        }

        .time-unit span {
            color: #aaa6bf;
            font-size: 11px;
        }

        .section {
            padding: 88px 0;
        }

        .section-sm {
            padding: 62px 0;
        }

        .section-alt {
            background: var(--surface-alt);
        }

        .section-dark {
            color: #fff;
            background:
                radial-gradient(circle at 80% 10%, rgba(103,84,246,.26), transparent 30%),
                var(--surface-dark);
        }

        .after-hero {
            padding-top: 126px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 25px;
            margin-bottom: 32px;
        }

        .section-kicker {
            display: block;
            margin-bottom: 9px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 850;
            letter-spacing: .12em;
            text-transform: uppercase;
        }

        .section-dark .section-kicker {
            color: #a99cff;
        }

        .section-title {
            margin: 0;
            color: inherit;
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.2;
            font-weight: 900;
            letter-spacing: -1.2px;
        }

        .section-desc {
            max-width: 690px;
            margin: 12px 0 0;
            color: var(--muted);
            line-height: 1.85;
        }

        .section-dark .section-desc {
            color: #bbb8cb;
        }

        .text-link {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 800;
        }

        .text-link:hover {
            gap: 11px;
        }

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

        .metric-card {
            padding: 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .metric-icon {
            width: 43px;
            height: 43px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            color: var(--primary);
            border-radius: 13px;
            background: var(--primary-soft);
            font-size: 20px;
        }

        .metric-card strong {
            display: block;
            margin-bottom: 4px;
            color: var(--ink);
            font-size: 27px;
            font-weight: 900;
        }

        .metric-card span {
            color: var(--muted);
            font-size: 14px;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .category-card {
            position: relative;
            min-height: 190px;
            padding: 25px;
            color: var(--ink);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .category-card::after {
            position: absolute;
            width: 90px;
            height: 90px;
            right: -32px;
            bottom: -37px;
            content: "";
            border-radius: 50%;
            background: var(--primary-soft);
            transition: transform var(--transition);
        }

        .category-card:hover {
            color: var(--ink);
            border-color: #cfc6ff;
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .category-card:hover::after {
            transform: scale(1.3);
        }

        .category-icon {
            width: 48px;
            height: 48px;
            display: grid;
            place-items: center;
            margin-bottom: 17px;
            color: #fff;
            border-radius: 15px;
            background: linear-gradient(135deg, var(--primary), #9a7cff);
            box-shadow: 0 10px 22px rgba(103,84,246,.22);
            font-size: 21px;
        }

        .category-card:nth-child(2) .category-icon,
        .category-card:nth-child(5) .category-icon {
            background: linear-gradient(135deg, #0db38f, #4edec1);
        }

        .category-card:nth-child(3) .category-icon,
        .category-card:nth-child(6) .category-icon {
            color: #523300;
            background: linear-gradient(135deg, #ffb82d, #ffd977);
        }

        .category-card h3 {
            margin: 0 0 8px;
            font-size: 19px;
            font-weight: 850;
        }

        .category-card p {
            position: relative;
            z-index: 1;
            margin: 0;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
        }

        .featured-layout {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 22px;
        }

        .feature-main {
            min-height: 395px;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            color: #fff;
            border-radius: var(--radius-lg);
            background:
                linear-gradient(0deg, rgba(14,13,49,.92), rgba(24,18,76,.18)),
                radial-gradient(circle at 72% 22%, rgba(19,201,163,.9), transparent 22%),
                linear-gradient(135deg, #745fff, #241858 68%);
            box-shadow: var(--shadow-md);
        }

        .content-badge {
            align-self: flex-start;
            padding: 6px 11px;
            color: var(--primary);
            border-radius: 999px;
            background: var(--primary-soft);
            font-size: 12px;
            font-weight: 850;
        }

        .feature-main .content-badge {
            color: #fff;
            background: rgba(255,255,255,.16);
        }

        .feature-main h3 {
            max-width: 600px;
            margin: 16px 0 10px;
            font-size: clamp(27px, 4vw, 42px);
            line-height: 1.22;
            font-weight: 900;
        }

        .feature-main p {
            max-width: 610px;
            margin: 0;
            color: #d8d5e8;
        }

        .feature-side {
            display: grid;
            gap: 16px;
        }

        .compact-card {
            padding: 23px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .compact-card:hover {
            border-color: #d0c8ff;
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .compact-card h3 {
            margin: 13px 0 7px;
            font-size: 18px;
            font-weight: 850;
        }

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

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

        .update-item {
            padding: 19px 21px;
            display: grid;
            grid-template-columns: 118px 1fr auto;
            align-items: center;
            gap: 20px;
            border: 1px solid var(--border);
            border-radius: 17px;
            background: #fff;
        }

        .update-item:hover {
            border-color: #cec5ff;
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }

        .update-date {
            color: var(--muted);
            font-size: 13px;
            font-weight: 700;
        }

        .update-content h3 {
            margin: 0 0 3px;
            font-size: 16px;
            font-weight: 850;
        }

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

        .update-tag {
            padding: 6px 10px;
            color: var(--primary);
            border-radius: 999px;
            background: var(--primary-soft);
            font-size: 12px;
            font-weight: 800;
        }

        .ranking-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .rank-list {
            padding: 13px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .rank-item {
            padding: 17px 15px;
            display: grid;
            grid-template-columns: 42px 1fr auto;
            align-items: center;
            gap: 13px;
            border-bottom: 1px solid var(--border);
        }

        .rank-item:last-child {
            border-bottom: 0;
        }

        .rank-number {
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            color: var(--muted);
            border-radius: 11px;
            background: var(--surface-alt);
            font-size: 14px;
            font-weight: 900;
        }

        .rank-item:nth-child(1) .rank-number {
            color: #fff;
            background: linear-gradient(135deg, #ffb62c, #ffcf63);
        }

        .rank-item:nth-child(2) .rank-number {
            color: #fff;
            background: linear-gradient(135deg, #8876ff, #b0a5ff);
        }

        .rank-item:nth-child(3) .rank-number {
            color: #fff;
            background: linear-gradient(135deg, #14b894, #52dfc2);
        }

        .rank-info strong {
            display: block;
            font-size: 15px;
        }

        .rank-info small {
            color: var(--muted);
            font-size: 12px;
        }

        .trend-up {
            color: #0fa987;
            font-size: 13px;
            font-weight: 800;
        }

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

        .tag-cloud {
            padding: 30px;
            display: flex;
            align-content: center;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            border-radius: var(--radius-lg);
            background:
                radial-gradient(circle at 20% 20%, rgba(19,201,163,.2), transparent 30%),
                linear-gradient(145deg, #1b1748, #111132);
        }

        .topic-tag {
            padding: 9px 15px;
            color: #ddd9ef;
            border: 1px solid rgba(255,255,255,.13);
            border-radius: 999px;
            background: rgba(255,255,255,.07);
            font-size: 13px;
        }

        .topic-tag:hover {
            color: #fff;
            border-color: rgba(255,255,255,.3);
            background: rgba(103,84,246,.4);
            transform: translateY(-2px);
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .resource-card {
            padding: 26px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            background: rgba(255,255,255,.07);
        }

        .resource-card:hover {
            border-color: rgba(169,156,255,.6);
            background: rgba(255,255,255,.1);
            transform: translateY(-4px);
        }

        .resource-icon {
            width: 48px;
            height: 48px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            color: #fff;
            border-radius: 15px;
            background: rgba(103,84,246,.7);
            font-size: 21px;
        }

        .resource-card h3 {
            margin: 0 0 9px;
            font-size: 19px;
            font-weight: 850;
        }

        .resource-card p {
            margin: 0 0 18px;
            color: #bbb8cb;
            font-size: 14px;
        }

        .resource-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: #8e8a9e;
            font-size: 12px;
        }

        .compare-wrap {
            overflow-x: auto;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .compare-grid {
            min-width: 720px;
            display: grid;
            grid-template-columns: 1.15fr 1fr 1fr;
        }

        .compare-cell {
            min-height: 70px;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            border-right: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .compare-cell:nth-child(3n) {
            border-right: 0;
        }

        .compare-cell:nth-last-child(-n+3) {
            border-bottom: 0;
        }

        .compare-head {
            min-height: 82px;
            font-weight: 900;
            background: var(--surface-alt);
        }

        .compare-head.featured {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #8069f7);
        }

        .compare-label {
            font-weight: 800;
        }

        .check {
            color: #0dad8a;
            font-weight: 800;
        }

        .limited {
            color: #a07110;
            font-weight: 700;
        }

        .timeline {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .timeline::before {
            position: absolute;
            top: 25px;
            left: 8%;
            right: 8%;
            height: 2px;
            content: "";
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .timeline-item {
            position: relative;
            z-index: 1;
        }

        .timeline-dot {
            width: 50px;
            height: 50px;
            display: grid;
            place-items: center;
            margin-bottom: 18px;
            color: #fff;
            border: 7px solid var(--surface-alt);
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 1px #cfc7ff;
            font-size: 13px;
            font-weight: 900;
        }

        .timeline-item h3 {
            margin: 0 0 7px;
            font-size: 17px;
            font-weight: 850;
        }

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

        .news-layout {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 25px;
        }

        .news-lead {
            padding: 30px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: linear-gradient(145deg, #fff, #f4f2ff);
            box-shadow: var(--shadow-sm);
        }

        .news-visual {
            min-height: 180px;
            margin-bottom: 25px;
            display: grid;
            place-items: center;
            color: #fff;
            border-radius: 20px;
            background:
                radial-gradient(circle at 30% 25%, rgba(19,201,163,.72), transparent 25%),
                linear-gradient(135deg, #6d59f6, #1a1746);
            font-size: 62px;
        }

        .news-lead h3 {
            margin: 14px 0 10px;
            font-size: 24px;
            font-weight: 900;
        }

        .news-lead p {
            margin: 0;
            color: var(--muted);
        }

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

        .news-row {
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            border: 1px solid var(--border);
            border-radius: 18px;
            background: #fff;
        }

        .news-row:hover {
            border-color: #cec5ff;
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }

        .news-row-icon {
            width: 42px;
            height: 42px;
            flex: 0 0 42px;
            display: grid;
            place-items: center;
            color: var(--primary);
            border-radius: 13px;
            background: var(--primary-soft);
        }

        .news-row h3 {
            margin: 0 0 5px;
            font-size: 16px;
            font-weight: 850;
        }

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

        .security-grid {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 30px;
            align-items: center;
        }

        .security-shield {
            min-height: 370px;
            display: grid;
            place-items: center;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background:
                radial-gradient(circle, rgba(103,84,246,.16), transparent 55%),
                #fff;
            box-shadow: var(--shadow-sm);
        }

        .shield-icon {
            width: 160px;
            height: 185px;
            display: grid;
            place-items: center;
            color: #fff;
            border-radius: 70px 70px 90px 90px;
            background: linear-gradient(155deg, #806dff, #4c37d6);
            box-shadow: 0 25px 55px rgba(83,61,219,.3);
            font-size: 70px;
            clip-path: polygon(50% 0, 96% 17%, 89% 72%, 50% 100%, 11% 72%, 4% 17%);
        }

        .security-list {
            display: grid;
            gap: 13px;
        }

        .security-item {
            padding: 18px 20px;
            display: flex;
            gap: 15px;
            border: 1px solid var(--border);
            border-radius: 17px;
            background: #fff;
        }

        .security-item i {
            margin-top: 2px;
            color: var(--secondary);
            font-size: 21px;
        }

        .security-item strong {
            display: block;
            margin-bottom: 3px;
        }

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

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

        .answer-card {
            padding: 24px;
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .answer-card .number {
            display: block;
            margin-bottom: 14px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .08em;
        }

        .answer-card h3 {
            margin: 0 0 8px;
            font-size: 17px;
            font-weight: 850;
        }

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

        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        .accordion-item {
            margin-bottom: 12px;
            border: 1px solid var(--border) !important;
            border-radius: 17px !important;
            overflow: hidden;
            background: #fff;
        }

        .accordion-button {
            padding: 20px 22px;
            color: var(--ink);
            background: #fff;
            font-weight: 850;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .accordion-button::after {
            filter: none;
        }

        .accordion-body {
            padding: 18px 22px 22px;
            color: var(--muted);
            line-height: 1.85;
        }

        .favorite-panel {
            padding: 34px;
            display: grid;
            grid-template-columns: 1fr auto;
            align-items: center;
            gap: 30px;
            border: 1px solid #dcd7ff;
            border-radius: var(--radius-lg);
            background:
                radial-gradient(circle at 90% 30%, rgba(19,201,163,.14), transparent 24%),
                linear-gradient(135deg, #f7f5ff, #fff);
        }

        .favorite-panel h2 {
            margin: 0 0 9px;
            font-size: 28px;
            font-weight: 900;
        }

        .favorite-panel p {
            max-width: 720px;
            margin: 0;
            color: var(--muted);
        }

        .subscribe-section {
            padding: 76px 0;
            color: #fff;
            background:
                radial-gradient(circle at 15% 10%, rgba(19,201,163,.22), transparent 27%),
                linear-gradient(135deg, #5d49e8, #2b1d77 62%, #17133f);
        }

        .subscribe-layout {
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 50px;
            align-items: center;
        }

        .subscribe-copy h2 {
            margin: 0 0 14px;
            font-size: clamp(30px, 4vw, 46px);
            font-weight: 900;
            letter-spacing: -1px;
        }

        .subscribe-copy p {
            margin: 0;
            color: #d8d4eb;
        }

        .subscribe-form {
            padding: 25px;
            border: 1px solid rgba(255,255,255,.16);
            border-radius: 24px;
            background: rgba(255,255,255,.1);
            backdrop-filter: blur(12px);
        }

        .form-row {
            display: flex;
            gap: 10px;
        }

        .form-control-custom {
            min-width: 0;
            flex: 1;
            height: 51px;
            padding: 0 16px;
            color: var(--ink);
            border: 1px solid transparent;
            border-radius: 13px;
            background: #fff;
            outline: 0;
        }

        .form-control-custom:focus {
            border-color: #b9adff;
            box-shadow: 0 0 0 4px rgba(255,255,255,.12);
        }

        .form-note {
            margin: 11px 0 0;
            color: #beb9d5;
            font-size: 12px;
        }

        .form-message {
            min-height: 22px;
            margin-top: 9px;
            color: #9ff1df;
            font-size: 13px;
            font-weight: 700;
        }

        .site-footer {
            padding: 52px 0 25px;
            color: #c1bed0;
            background: #0c0c24;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr .7fr .7fr;
            gap: 50px;
            padding-bottom: 35px;
        }

        .footer-brand {
            color: #fff;
        }

        .footer-brand:hover {
            color: #fff;
        }

        .footer-intro {
            max-width: 510px;
            margin: 17px 0 0;
            color: #9996aa;
            font-size: 14px;
        }

        .footer-title {
            margin: 0 0 15px;
            color: #fff;
            font-size: 15px;
            font-weight: 850;
        }

        .footer-links {
            display: grid;
            gap: 9px;
        }

        .footer-links a {
            color: #9f9caf;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-bottom {
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border-top: 1px solid var(--border-dark);
            color: #777489;
            font-size: 12px;
        }

        .no-result {
            display: none;
            margin-top: 20px;
            padding: 22px;
            color: var(--muted);
            text-align: center;
            border: 1px dashed #cfcbdc;
            border-radius: 16px;
            background: #fff;
        }

        @media (max-width: 1024px) {
            .metrics-grid,
            .answer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .featured-layout,
            .ranking-layout,
            .news-layout,
            .security-grid,
            .subscribe-layout {
                grid-template-columns: 1fr;
            }

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

            .timeline::before {
                display: none;
            }

            .security-shield {
                min-height: 280px;
            }

            .subscribe-layout {
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            html {
                scroll-padding-top: 122px;
            }

            .container {
                width: min(100% - 28px, 1180px);
            }

            .brand-row {
                min-height: 66px;
            }

            .brand {
                font-size: 18px;
            }

            .brand-mark {
                width: 39px;
                height: 39px;
            }

            .header-status span:last-child {
                display: none;
            }

            .hero {
                padding: 52px 0 45px;
            }

            .hero h1 {
                letter-spacing: -1.5px;
            }

            .hero-copy {
                font-size: 15px;
                line-height: 1.8;
            }

            .hero-search {
                padding: 6px;
                border-radius: 16px;
            }

            .hero-search .btn-brand {
                min-width: 50px;
                padding: 10px 14px;
            }

            .hero-search .search-text {
                display: none;
            }

            .live-panel {
                grid-template-columns: 1fr;
                margin-bottom: -118px;
            }

            .live-cover {
                min-height: 180px;
            }

            .after-hero {
                padding-top: 140px;
            }

            .section,
            .section-sm {
                padding: 64px 0;
            }

            .section-head {
                align-items: flex-start;
                flex-direction: column;
                margin-bottom: 25px;
            }

            .category-grid,
            .resource-grid {
                grid-template-columns: 1fr 1fr;
            }

            .feature-main {
                min-height: 330px;
                padding: 27px;
            }

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

            .update-date {
                grid-column: 1 / -1;
            }

            .favorite-panel {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .footer-about {
                grid-column: 1 / -1;
            }

            .footer-bottom {
                align-items: flex-start;
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .container {
                width: min(100% - 22px, 1180px);
            }

            .nav-chip {
                padding: 7px 14px;
                min-height: 35px;
            }

            .hero {
                padding-top: 42px;
            }

            .hero h1 {
                font-size: 38px;
            }

            .hero-search input {
                height: 44px;
                font-size: 14px;
            }

            .live-panel {
                padding: 13px;
                border-radius: 21px;
            }

            .live-cover,
            .countdown-box {
                border-radius: 16px;
            }

            .live-cover h2 {
                font-size: 22px;
            }

            .metrics-grid,
            .category-grid,
            .resource-grid,
            .answer-grid,
            .timeline {
                grid-template-columns: 1fr;
            }

            .metric-card,
            .category-card,
            .resource-card {
                padding: 21px;
            }

            .section-title {
                font-size: 29px;
            }

            .update-item {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .update-tag {
                justify-self: start;
            }

            .rank-item {
                grid-template-columns: 38px 1fr;
            }

            .rank-item > span:last-child {
                grid-column: 2;
            }

            .tag-cloud {
                padding: 22px;
                justify-content: flex-start;
            }

            .news-lead,
            .favorite-panel {
                padding: 23px;
            }

            .shield-icon {
                width: 130px;
                height: 150px;
                font-size: 56px;
            }

            .form-row {
                flex-direction: column;
            }

            .subscribe-form .btn-light-custom {
                width: 100%;
            }

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

            .footer-about {
                grid-column: auto;
            }
        }

/* roulang page: category1 */
:root {
 --primary: #6754f6;
 --primary-dark: #4936d8;
 --primary-soft: #eeebff;
 --secondary: #13c9a3;
 --accent: #ffbd3d;
 --danger: #f05b73;
 --ink: #17172f;
 --muted: #686880;
 --surface: #ffffff;
 --surface-alt: #f6f7fb;
 --surface-dark: #111132;
 --border: #e7e7f0;
 --border-dark: rgba(255,255,255,.12);
 --radius-sm: 12px;
 --radius-md: 20px;
 --radius-lg: 30px;
 --shadow-sm: 0 8px 24px rgba(29,24,82,.07);
 --shadow-md: 0 18px 48px rgba(38,29,111,.12);
 --shadow-lg: 0 30px 80px rgba(22,17,75,.2);
 --transition: .25s ease;
}
*,
*::before,
*::after {
 box-sizing: border-box;
}
html {
 scroll-behavior: smooth;
 scroll-padding-top: 132px;
}
body {
 margin: 0;
 color: var(--ink);
 background: var(--surface);
 font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
 font-size: 16px;
 line-height: 1.72;
 overflow-x: hidden;
}
body,
button,
input,
select,
textarea {
 font-family: inherit;
}
a {
 color: inherit;
 text-decoration: none;
 transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
a:hover {
 color: var(--primary);
}
img,
svg {
 display: block;
 max-width: 100%;
 height: auto;
}
button,
input,
select,
textarea {
 border: 0;
}
button {
 cursor: pointer;
}
::selection {
 color: #fff;
 background: var(--primary);
}
.container {
 width: min(1180px, calc(100% - 40px));
 max-width: 1180px;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 1030;
 background: rgba(255,255,255,.92);
 border-bottom: 1px solid rgba(231,231,240,.92);
 box-shadow: 0 8px 30px rgba(31,25,84,.05);
 backdrop-filter: blur(18px);
}
.brand-row {
 min-height: 76px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 24px;
}
.brand {
 display: inline-flex;
 align-items: center;
 gap: 12px;
 color: var(--ink);
 font-size: 21px;
 font-weight: 850;
 letter-spacing: -.5px;
 white-space: nowrap;
}
.brand:hover {
 color: var(--ink);
 transform: translateY(-1px);
}
.brand-mark {
 width: 43px;
 height: 43px;
 display: grid;
 place-items: center;
 color: #fff;
 font-size: 18px;
 font-weight: 900;
 border-radius: 14px;
 background: linear-gradient(145deg, #7b68ff, #5138e3 62%, #17c8a6);
 box-shadow: 0 10px 25px rgba(91,68,230,.28);
}
.header-status {
 display: flex;
 align-items: center;
 gap: 10px;
 color: var(--muted);
 font-size: 14px;
}
.status-dot {
 width: 9px;
 height: 9px;
 border-radius: 50%;
 background: var(--secondary);
 box-shadow: 0 0 0 5px rgba(19,201,163,.12);
 animation: statusPulse 2.4s infinite;
}
@keyframes statusPulse {
 50% { box-shadow: 0 0 0 9px rgba(19,201,163,0); }
}
.chip-nav-wrap {
 border-top: 1px solid var(--border);
}
.chip-nav {
 display: flex;
 align-items: center;
 gap: 10px;
 padding: 11px 0 13px;
 overflow-x: auto;
 scrollbar-width: none;
 white-space: nowrap;
}
.chip-nav::-webkit-scrollbar {
 display: none;
}
.nav-chip {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 38px;
 padding: 8px 18px;
 border: 1px solid var(--border);
 border-radius: 999px;
 color: #55556e;
 background: #fff;
 font-size: 14px;
 font-weight: 750;
}
.nav-chip:hover {
 color: var(--primary);
 border-color: #cabfff;
 background: var(--primary-soft);
 transform: translateY(-1px);
}
.nav-chip.active {
 color: #fff;
 border-color: var(--primary);
 background: var(--primary);
 box-shadow: 0 8px 18px rgba(103,84,246,.25);
}
main {
 display: block;
}
.category-hero {
 position: relative;
 padding: 68px 0 64px;
 color: #fff;
 background:
  radial-gradient(circle at 9% 12%, rgba(123,104,255,.43), transparent 29%),
  radial-gradient(circle at 88% 18%, rgba(19,201,163,.2), transparent 25%),
  linear-gradient(135deg, #10102d 0%, #24195c 54%, #111132 100%);
 overflow: hidden;
}
.category-hero::before {
 position: absolute;
 width: 450px;
 height: 450px;
 right: -240px;
 bottom: -295px;
 content: "";
 border: 68px solid rgba(255,255,255,.04);
 border-radius: 50%;
}
.category-hero::after {
 position: absolute;
 top: 22px;
 left: 52%;
 width: 250px;
 height: 250px;
 content: "";
 background-image: radial-gradient(rgba(255,255,255,.16) 1.5px, transparent 1.5px);
 background-size: 18px 18px;
 opacity: .42;
 transform: rotate(10deg);
}
.hero-grid {
 position: relative;
 z-index: 2;
 display: grid;
 grid-template-columns: minmax(0,1.18fr) minmax(340px,.82fr);
 align-items: center;
 gap: 54px;
}
.eyebrow {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 margin-bottom: 18px;
 padding: 7px 13px;
 color: #e3dfff;
 border: 1px solid rgba(255,255,255,.16);
 border-radius: 999px;
 background: rgba(255,255,255,.07);
 font-size: 13px;
 font-weight: 750;
 letter-spacing: .03em;
}
.category-hero h1 {
 max-width: 710px;
 margin: 0 0 20px;
 font-size: clamp(38px,5.3vw,66px);
 line-height: 1.09;
 letter-spacing: -2.6px;
 font-weight: 900;
}
.hero-lead {
 max-width: 720px;
 margin: 0;
 color: rgba(255,255,255,.78);
 font-size: 18px;
 line-height: 1.85;
}
.hero-tags {
 display: flex;
 flex-wrap: wrap;
 gap: 9px;
 margin-top: 24px;
}
.hero-tag {
 padding: 7px 12px;
 color: #e5e1ff;
 border: 1px solid rgba(255,255,255,.13);
 border-radius: 999px;
 background: rgba(255,255,255,.06);
 font-size: 13px;
 font-weight: 700;
}
.group-panel {
 position: relative;
 padding: 28px;
 border: 1px solid rgba(255,255,255,.15);
 border-radius: var(--radius-lg);
 background: rgba(255,255,255,.09);
 box-shadow: var(--shadow-lg);
 backdrop-filter: blur(17px);
}
.group-panel::before {
 position: absolute;
 inset: 0;
 content: "";
 border-radius: inherit;
 background: linear-gradient(140deg, rgba(255,255,255,.1), transparent 44%);
 pointer-events: none;
}
.group-top,
.group-progress,
.group-actions {
 position: relative;
}
.group-top {
 display: flex;
 align-items: flex-start;
 justify-content: space-between;
 gap: 15px;
}
.group-kicker {
 margin: 0 0 4px;
 color: #c8c1ff;
 font-size: 13px;
 font-weight: 750;
}
.group-title {
 margin: 0;
 color: #fff;
 font-size: 23px;
 font-weight: 850;
}
.live-badge {
 display: inline-flex;
 align-items: center;
 gap: 7px;
 padding: 6px 10px;
 color: #c7fff3;
 border: 1px solid rgba(19,201,163,.34);
 border-radius: 999px;
 background: rgba(19,201,163,.12);
 font-size: 12px;
 font-weight: 800;
 white-space: nowrap;
}
.live-badge::before {
 width: 7px;
 height: 7px;
 content: "";
 border-radius: 50%;
 background: var(--secondary);
}
.group-count {
 display: flex;
 align-items: baseline;
 gap: 8px;
 margin: 24px 0 10px;
}
.group-count strong {
 font-size: 42px;
 line-height: 1;
 font-weight: 900;
}
.group-count span {
 color: rgba(255,255,255,.68);
 font-size: 14px;
}
.progress-track {
 height: 9px;
 overflow: hidden;
 border-radius: 999px;
 background: rgba(255,255,255,.12);
}
.progress-bar-custom {
 width: 75%;
 height: 100%;
 border-radius: inherit;
 background: linear-gradient(90deg, var(--secondary), #62efd3);
 box-shadow: 0 0 18px rgba(19,201,163,.45);
}
.group-note {
 margin: 11px 0 0;
 color: rgba(255,255,255,.65);
 font-size: 13px;
}
.group-actions {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 11px;
 margin-top: 24px;
}
.btn-main,
.btn-ghost,
.btn-light-custom,
.btn-outline-custom {
 min-height: 48px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 9px;
 padding: 11px 19px;
 border-radius: 14px;
 font-weight: 800;
 transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}
.btn-main {
 color: #fff;
 background: var(--primary);
 box-shadow: 0 12px 26px rgba(103,84,246,.3);
}
.btn-main:hover {
 color: #fff;
 background: var(--primary-dark);
 transform: translateY(-2px);
 box-shadow: 0 16px 34px rgba(103,84,246,.38);
}
.btn-light-custom {
 color: var(--primary-dark);
 background: #fff;
}
.btn-light-custom:hover {
 color: var(--primary-dark);
 background: #f4f1ff;
 transform: translateY(-2px);
}
.btn-ghost {
 color: #fff;
 border: 1px solid rgba(255,255,255,.22);
 background: rgba(255,255,255,.08);
}
.btn-ghost:hover {
 color: #fff;
 border-color: rgba(255,255,255,.42);
 background: rgba(255,255,255,.14);
 transform: translateY(-2px);
}
.btn-outline-custom {
 color: var(--primary);
 border: 1px solid #cfc7ff;
 background: #fff;
}
.btn-outline-custom:hover {
 color: #fff;
 border-color: var(--primary);
 background: var(--primary);
 transform: translateY(-2px);
}
.btn-main:focus-visible,
.btn-ghost:focus-visible,
.btn-light-custom:focus-visible,
.btn-outline-custom:focus-visible,
.nav-chip:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
 outline: 3px solid rgba(255,189,61,.56);
 outline-offset: 3px;
}
.section {
 position: relative;
 padding: 86px 0;
}
.section-soft {
 background: var(--surface-alt);
}
.section-dark {
 color: #fff;
 background:
  radial-gradient(circle at 88% 20%, rgba(103,84,246,.22), transparent 28%),
  var(--surface-dark);
}
.section-head {
 display: flex;
 align-items: end;
 justify-content: space-between;
 gap: 34px;
 margin-bottom: 34px;
}
.section-copy {
 max-width: 720px;
}
.section-kicker {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 margin-bottom: 11px;
 color: var(--primary);
 font-size: 13px;
 font-weight: 850;
 letter-spacing: .08em;
 text-transform: uppercase;
}
.section-kicker::before {
 width: 22px;
 height: 3px;
 content: "";
 border-radius: 999px;
 background: var(--secondary);
}
.section-dark .section-kicker {
 color: #bdb3ff;
}
.section-title {
 margin: 0;
 font-size: clamp(28px,3.6vw,43px);
 line-height: 1.2;
 letter-spacing: -1.2px;
 font-weight: 900;
}
.section-desc {
 margin: 13px 0 0;
 color: var(--muted);
 font-size: 16px;
}
.section-dark .section-desc {
 color: rgba(255,255,255,.68);
}
.text-link {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 color: var(--primary);
 font-weight: 800;
 white-space: nowrap;
}
.text-link:hover {
 gap: 12px;
}
.metric-grid {
 display: grid;
 grid-template-columns: repeat(4,1fr);
 gap: 18px;
}
.metric-card {
 min-height: 176px;
 padding: 24px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
 transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.metric-card:hover {
 border-color: #d7d0ff;
 transform: translateY(-5px);
 box-shadow: var(--shadow-md);
}
.metric-icon {
 width: 42px;
 height: 42px;
 display: grid;
 place-items: center;
 margin-bottom: 22px;
 color: var(--primary);
 border-radius: 13px;
 background: var(--primary-soft);
 font-size: 20px;
}
.metric-value {
 margin-bottom: 7px;
 font-size: 29px;
 line-height: 1;
 font-weight: 900;
}
.metric-label {
 color: var(--muted);
 font-size: 14px;
}
.matrix-layout {
 display: grid;
 grid-template-columns: 280px minmax(0,1fr);
 gap: 28px;
}
.filter-panel {
 align-self: start;
 position: sticky;
 top: 145px;
 padding: 22px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.filter-title {
 margin: 0 0 15px;
 font-size: 17px;
 font-weight: 850;
}
.filter-list {
 display: grid;
 gap: 8px;
}
.filter-chip {
 display: flex;
 align-items: center;
 justify-content: space-between;
 padding: 11px 13px;
 color: #57576f;
 border: 1px solid transparent;
 border-radius: 12px;
 background: transparent;
 font-size: 14px;
 font-weight: 700;
}
.filter-chip span {
 min-width: 26px;
 padding: 1px 7px;
 text-align: center;
 border-radius: 999px;
 background: var(--surface-alt);
 font-size: 12px;
}
.filter-chip:hover,
.filter-chip.active {
 color: var(--primary);
 border-color: #dcd6ff;
 background: var(--primary-soft);
}
.service-grid {
 display: grid;
 grid-template-columns: repeat(2,minmax(0,1fr));
 gap: 18px;
}
.service-card {
 display: flex;
 flex-direction: column;
 min-height: 260px;
 padding: 25px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
 transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
 border-color: #d5ceff;
 transform: translateY(-5px);
 box-shadow: var(--shadow-md);
}
.card-top {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 15px;
}
.card-icon {
 width: 47px;
 height: 47px;
 display: grid;
 place-items: center;
 color: #fff;
 border-radius: 15px;
 background: linear-gradient(145deg, var(--primary), #8f7eff);
 box-shadow: 0 11px 22px rgba(103,84,246,.22);
 font-size: 21px;
}
.data-badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 5px 9px;
 color: #087d67;
 border-radius: 999px;
 background: #e5fbf6;
 font-size: 12px;
 font-weight: 850;
}
.service-card h3 {
 margin: 22px 0 9px;
 font-size: 21px;
 font-weight: 850;
}
.service-card p {
 margin: 0 0 20px;
 color: var(--muted);
 font-size: 14px;
}
.tag-row {
 display: flex;
 flex-wrap: wrap;
 gap: 7px;
 margin-top: auto;
}
.mini-tag {
 padding: 5px 9px;
 color: #606078;
 border: 1px solid var(--border);
 border-radius: 999px;
 background: #fafaff;
 font-size: 12px;
 font-weight: 700;
}
.compare-wrap {
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-md);
}
.compare-head,
.compare-row {
 display: grid;
 grid-template-columns: 1.15fr 1fr 1fr;
}
.compare-head {
 color: #fff;
 background: var(--surface-dark);
}
.compare-head > div,
.compare-row > div {
 padding: 18px 24px;
}
.compare-head > div {
 font-weight: 850;
}
.compare-head > div:nth-child(3) {
 background: var(--primary);
}
.compare-row {
 border-top: 1px solid var(--border);
}
.compare-row:hover {
 background: #faf9ff;
}
.compare-label {
 font-weight: 800;
}
.compare-old {
 color: var(--muted);
}
.compare-new {
 color: var(--primary-dark);
 background: #f7f5ff;
 font-weight: 750;
}
.timeline {
 position: relative;
 display: grid;
 gap: 18px;
}
.timeline::before {
 position: absolute;
 top: 12px;
 bottom: 12px;
 left: 103px;
 width: 2px;
 content: "";
 background: linear-gradient(var(--primary), var(--secondary));
}
.timeline-item {
 position: relative;
 display: grid;
 grid-template-columns: 84px 1fr;
 gap: 42px;
 align-items: start;
}
.timeline-date {
 padding-top: 20px;
 color: var(--primary);
 font-size: 14px;
 font-weight: 850;
}
.timeline-dot {
 position: absolute;
 top: 25px;
 left: 96px;
 z-index: 2;
 width: 16px;
 height: 16px;
 border: 4px solid #fff;
 border-radius: 50%;
 background: var(--primary);
 box-shadow: 0 0 0 2px var(--primary);
}
.timeline-card {
 padding: 22px 25px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.timeline-card h3 {
 margin: 0 0 7px;
 font-size: 19px;
 font-weight: 850;
}
.timeline-card p {
 margin: 0;
 color: var(--muted);
 font-size: 14px;
}
.news-layout {
 display: grid;
 grid-template-columns: 1.15fr .85fr;
 gap: 24px;
}
.feature-news {
 min-height: 420px;
 display: flex;
 flex-direction: column;
 justify-content: flex-end;
 padding: 35px;
 color: #fff;
 border-radius: var(--radius-lg);
 background:
  linear-gradient(0deg, rgba(14,14,45,.96), rgba(25,20,74,.28)),
  radial-gradient(circle at 80% 20%, #735dff, transparent 36%),
  linear-gradient(145deg, #312477, #141431);
 box-shadow: var(--shadow-lg);
 overflow: hidden;
}
.feature-news .news-meta {
 color: rgba(255,255,255,.68);
}
.feature-news h3 {
 max-width: 590px;
 margin: 13px 0 12px;
 font-size: clamp(25px,3vw,37px);
 line-height: 1.25;
 font-weight: 900;
}
.feature-news p {
 max-width: 630px;
 margin: 0;
 color: rgba(255,255,255,.72);
}
.news-stack {
 display: grid;
 gap: 14px;
}
.news-item {
 display: grid;
 grid-template-columns: 62px 1fr;
 gap: 16px;
 padding: 19px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.news-item:hover {
 border-color: #d5ceff;
 transform: translateX(4px);
 box-shadow: var(--shadow-md);
}
.news-number {
 width: 62px;
 height: 62px;
 display: grid;
 place-items: center;
 color: var(--primary);
 border-radius: 17px;
 background: var(--primary-soft);
 font-size: 20px;
 font-weight: 900;
}
.news-meta {
 color: var(--muted);
 font-size: 12px;
 font-weight: 750;
}
.news-item h3 {
 margin: 5px 0 5px;
 font-size: 17px;
 line-height: 1.45;
 font-weight: 850;
}
.news-item p {
 margin: 0;
 color: var(--muted);
 font-size: 13px;
}
.security-layout {
 display: grid;
 grid-template-columns: .88fr 1.12fr;
 gap: 54px;
 align-items: center;
}
.security-visual {
 position: relative;
 min-height: 410px;
 display: grid;
 place-items: center;
 border: 1px solid var(--border-dark);
 border-radius: var(--radius-lg);
 background:
  radial-gradient(circle at center, rgba(103,84,246,.35), transparent 45%),
  rgba(255,255,255,.04);
 overflow: hidden;
}
.security-ring {
 width: 230px;
 height: 230px;
 display: grid;
 place-items: center;
 border: 1px solid rgba(255,255,255,.18);
 border-radius: 50%;
 box-shadow: 0 0 0 38px rgba(255,255,255,.025), 0 0 0 76px rgba(255,255,255,.018);
}
.security-shield {
 width: 112px;
 height: 112px;
 display: grid;
 place-items: center;
 color: #fff;
 border-radius: 34px;
 background: linear-gradient(145deg, var(--primary), var(--secondary));
 box-shadow: 0 24px 55px rgba(47,34,152,.48);
 font-size: 48px;
 transform: rotate(-5deg);
}
.security-shield i {
 transform: rotate(5deg);
}
.security-list {
 display: grid;
 gap: 14px;
 margin-top: 26px;
}
.security-item {
 display: grid;
 grid-template-columns: 42px 1fr;
 gap: 14px;
 padding: 17px;
 border: 1px solid var(--border-dark);
 border-radius: 16px;
 background: rgba(255,255,255,.055);
}
.security-item i {
 width: 42px;
 height: 42px;
 display: grid;
 place-items: center;
 color: #a99eff;
 border-radius: 13px;
 background: rgba(103,84,246,.18);
 font-size: 19px;
}
.security-item h3 {
 margin: 0 0 3px;
 font-size: 16px;
 font-weight: 850;
}
.security-item p {
 margin: 0;
 color: rgba(255,255,255,.62);
 font-size: 13px;
}
.quick-grid {
 display: grid;
 grid-template-columns: repeat(2,1fr);
 gap: 16px;
}
.quick-card {
 display: flex;
 align-items: flex-start;
 gap: 17px;
 padding: 22px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.quick-card:hover {
 border-color: #d7d0ff;
 transform: translateY(-3px);
 box-shadow: var(--shadow-md);
}
.quick-icon {
 flex: 0 0 auto;
 width: 44px;
 height: 44px;
 display: grid;
 place-items: center;
 color: var(--primary);
 border-radius: 14px;
 background: var(--primary-soft);
 font-size: 19px;
}
.quick-card h3 {
 margin: 0 0 5px;
 font-size: 17px;
 font-weight: 850;
}
.quick-card p {
 margin: 0;
 color: var(--muted);
 font-size: 14px;
}
.faq-layout {
 display: grid;
 grid-template-columns: .72fr 1.28fr;
 gap: 48px;
 align-items: start;
}
.faq-aside {
 padding: 29px;
 border-radius: var(--radius-lg);
 color: #fff;
 background: linear-gradient(145deg, var(--primary), #3f2bc5);
 box-shadow: var(--shadow-md);
}
.faq-aside i {
 display: block;
 margin-bottom: 20px;
 color: #dbd5ff;
 font-size: 38px;
}
.faq-aside h2 {
 margin: 0 0 12px;
 font-size: 29px;
 line-height: 1.25;
 font-weight: 900;
}
.faq-aside p {
 margin: 0;
 color: rgba(255,255,255,.72);
}
.faq-list {
 display: grid;
 gap: 12px;
}
.faq-item {
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: 17px;
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.faq-item summary {
 position: relative;
 padding: 20px 54px 20px 21px;
 list-style: none;
 cursor: pointer;
 font-weight: 850;
}
.faq-item summary::-webkit-details-marker {
 display: none;
}
.faq-item summary::after {
 position: absolute;
 top: 18px;
 right: 19px;
 width: 28px;
 height: 28px;
 display: grid;
 place-items: center;
 content: "+";
 color: var(--primary);
 border-radius: 9px;
 background: var(--primary-soft);
 font-size: 20px;
}
.faq-item[open] summary::after {
 content: "−";
}
.faq-answer {
 padding: 0 21px 21px;
 color: var(--muted);
 font-size: 14px;
}
.subscribe-card {
 position: relative;
 display: grid;
 grid-template-columns: .8fr 1.2fr;
 gap: 52px;
 padding: 48px;
 border: 1px solid #ded8ff;
 border-radius: var(--radius-lg);
 background:
  radial-gradient(circle at 6% 12%, rgba(103,84,246,.13), transparent 28%),
  #fff;
 box-shadow: var(--shadow-lg);
 overflow: hidden;
}
.subscribe-copy h2 {
 margin: 0 0 14px;
 font-size: clamp(29px,3.4vw,42px);
 line-height: 1.2;
 font-weight: 900;
}
.subscribe-copy p {
 margin: 0;
 color: var(--muted);
}
.subscribe-points {
 display: grid;
 gap: 10px;
 margin-top: 24px;
}
.subscribe-point {
 display: flex;
 align-items: center;
 gap: 10px;
 font-size: 14px;
 font-weight: 750;
}
.subscribe-point i {
 color: var(--secondary);
}
.subscribe-form {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 14px;
}
.form-field {
 display: grid;
 gap: 7px;
}
.form-field.full {
 grid-column: 1 / -1;
}
.form-field label {
 color: #4f4f68;
 font-size: 13px;
 font-weight: 800;
}
.form-control-custom,
.form-select-custom {
 width: 100%;
 min-height: 49px;
 padding: 11px 14px;
 color: var(--ink);
 border: 1px solid var(--border);
 border-radius: 13px;
 background: #fbfbfe;
 outline: none;
 transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
textarea.form-control-custom {
 min-height: 96px;
 resize: vertical;
}
.form-control-custom:hover,
.form-select-custom:hover {
 border-color: #cfc7ff;
}
.form-control-custom:focus,
.form-select-custom:focus {
 border-color: var(--primary);
 background: #fff;
 box-shadow: 0 0 0 4px rgba(103,84,246,.11);
}
.form-submit {
 grid-column: 1 / -1;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 margin-top: 3px;
}
.form-note {
 margin: 0;
 color: var(--muted);
 font-size: 12px;
}
.site-footer {
 padding: 66px 0 24px;
 color: rgba(255,255,255,.72);
 background: #0d0d27;
}
.footer-grid {
 display: grid;
 grid-template-columns: 1.6fr .7fr .7fr;
 gap: 60px;
 padding-bottom: 42px;
}
.footer-brand {
 color: #fff;
}
.footer-brand:hover {
 color: #fff;
}
.footer-intro {
 max-width: 560px;
 margin: 20px 0 0;
 color: rgba(255,255,255,.58);
 font-size: 14px;
}
.footer-title {
 margin: 6px 0 16px;
 color: #fff;
 font-size: 15px;
 font-weight: 850;
}
.footer-links {
 display: grid;
 gap: 10px;
}
.footer-links a {
 color: rgba(255,255,255,.62);
 font-size: 14px;
}
.footer-links a:hover {
 color: #fff;
 transform: translateX(3px);
}
.footer-bottom {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 padding-top: 22px;
 border-top: 1px solid var(--border-dark);
 color: rgba(255,255,255,.46);
 font-size: 12px;
}
@media (max-width: 1024px) {
 .hero-grid {
  grid-template-columns: 1fr .82fr;
  gap: 34px;
 }
 .category-hero h1 {
  font-size: 48px;
 }
 .metric-grid {
  grid-template-columns: repeat(2,1fr);
 }
 .matrix-layout {
  grid-template-columns: 230px 1fr;
 }
 .security-layout {
  gap: 34px;
 }
 .subscribe-card {
  gap: 34px;
  padding: 38px;
 }
}
@media (max-width: 768px) {
 html {
  scroll-padding-top: 118px;
 }
 .container {
  width: min(100% - 28px,1180px);
 }
 .brand-row {
  min-height: 68px;
 }
 .brand {
  font-size: 18px;
 }
 .brand-mark {
  width: 39px;
  height: 39px;
  border-radius: 12px;
 }
 .header-status span:last-child {
  display: none;
 }
 .category-hero {
  padding: 50px 0;
 }
 .hero-grid,
 .matrix-layout,
 .news-layout,
 .security-layout,
 .faq-layout,
 .subscribe-card {
  grid-template-columns: 1fr;
 }
 .category-hero h1 {
  font-size: clamp(36px,10vw,50px);
  letter-spacing: -1.8px;
 }
 .hero-lead {
  font-size: 16px;
 }
 .group-panel {
  padding: 23px;
 }
 .section {
  padding: 68px 0;
 }
 .section-head {
  align-items: flex-start;
  flex-direction: column;
  gap: 16px;
 }
 .filter-panel {
  position: static;
  padding: 15px;
 }
 .filter-list {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
 }
 .filter-chip {
  flex: 0 0 auto;
  gap: 12px;
 }
 .service-grid,
 .quick-grid {
  grid-template-columns: 1fr;
 }
 .compare-wrap {
  overflow-x: auto;
 }
 .compare-head,
 .compare-row {
  min-width: 680px;
 }
 .security-visual {
  min-height: 340px;
 }
 .faq-layout {
  gap: 25px;
 }
 .subscribe-card {
  padding: 30px;
 }
 .footer-grid {
  grid-template-columns: 1fr 1fr;
  gap: 38px;
 }
 .footer-about {
  grid-column: 1 / -1;
 }
 .footer-bottom {
  align-items: flex-start;
  flex-direction: column;
 }
}
@media (max-width: 520px) {
 .container {
  width: min(100% - 22px,1180px);
 }
 .brand {
  gap: 9px;
  font-size: 16px;
 }
 .header-status {
  display: none;
 }
 .chip-nav {
  padding-top: 9px;
  padding-bottom: 10px;
 }
 .nav-chip {
  min-height: 36px;
  padding: 7px 14px;
 }
 .category-hero {
  padding: 42px 0 44px;
 }
 .category-hero h1 {
  font-size: 38px;
  line-height: 1.12;
 }
 .hero-tags {
  margin-top: 19px;
 }
 .group-top {
  align-items: flex-start;
  flex-direction: column;
 }
 .group-actions {
  grid-template-columns: 1fr;
 }
 .section {
  padding: 56px 0;
 }
 .section-title {
  font-size: 29px;
 }
 .metric-grid {
  grid-template-columns: 1fr;
 }
 .metric-card {
  min-height: auto;
 }
 .service-card {
  min-height: 240px;
 }
 .timeline::before,
 .timeline-dot {
  display: none;
 }
 .timeline-item {
  grid-template-columns: 1fr;
  gap: 7px;
 }
 .timeline-date {
  padding-top: 0;
 }
 .feature-news {
  min-height: 360px;
  padding: 26px;
 }
 .news-item {
  grid-template-columns: 50px 1fr;
 }
 .news-number {
  width: 50px;
  height: 50px;
 }
 .security-ring {
  width: 185px;
  height: 185px;
 }
 .security-shield {
  width: 94px;
  height: 94px;
 }
 .subscribe-card {
  padding: 25px 20px;
 }
 .subscribe-form {
  grid-template-columns: 1fr;
 }
 .form-field,
 .form-field.full,
 .form-submit {
  grid-column: 1;
 }
 .form-submit {
  align-items: stretch;
  flex-direction: column;
 }
 .form-submit .btn-main {
  width: 100%;
 }
 .footer-grid {
  grid-template-columns: 1fr;
 }
 .footer-about {
  grid-column: auto;
 }
}
@media (prefers-reduced-motion: reduce) {
 *,
 *::before,
 *::after {
  scroll-behavior: auto !important;
  animation-duration: .01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: .01ms !important;
 }
}

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