/* roulang page: index */
:root {
            --primary: #1769e0;
            --primary-dark: #0e4fae;
            --primary-soft: #eaf3ff;
            --secondary: #0d9488;
            --accent: #f59e0b;
            --ink: #122033;
            --muted: #64748b;
            --muted-light: #94a3b8;
            --surface: #ffffff;
            --surface-alt: #f5f8fc;
            --surface-blue: #eef6ff;
            --border: #dce5f0;
            --border-strong: #c8d5e5;
            --success: #0f9f6e;
            --danger: #dc4c64;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 6px 18px rgba(31, 54, 86, .06);
            --shadow-md: 0 16px 40px rgba(31, 69, 120, .11);
            --shadow-lg: 0 28px 70px rgba(19, 75, 145, .16);
            --transition: 180ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 92px;
        }

        body {
            margin: 0;
            color: var(--ink);
            background: var(--surface);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body.menu-open {
            overflow: hidden;
        }

        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 {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

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

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

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            min-height: 74px;
            border-bottom: 1px solid rgba(220, 229, 240, .88);
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(18px);
            box-shadow: 0 5px 20px rgba(18, 32, 51, .035);
        }

        .nav-wrap {
            min-height: 74px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex: 0 1 auto;
            min-width: 0;
            font-weight: 850;
            letter-spacing: -.02em;
            color: #10213a;
        }

        .brand-mark {
            position: relative;
            width: 38px;
            height: 38px;
            flex: 0 0 38px;
            overflow: hidden;
            border-radius: 12px;
            background: linear-gradient(145deg, #1770ea, #43a4ff);
            box-shadow: 0 9px 20px rgba(23, 105, 224, .26);
        }

        .brand-mark::before,
        .brand-mark::after {
            content: "";
            position: absolute;
            border-radius: 50%;
        }

        .brand-mark::before {
            width: 22px;
            height: 22px;
            top: 6px;
            left: 6px;
            border: 4px solid rgba(255, 255, 255, .92);
        }

        .brand-mark::after {
            width: 9px;
            height: 9px;
            right: 4px;
            bottom: 4px;
            background: #ffcc65;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, .36);
        }

        .brand-name {
            max-width: 360px;
            font-size: 18px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 42px;
            padding: 8px 17px;
            border: 1px solid transparent;
            border-radius: 12px;
            color: #52637a;
            font-size: 15px;
            font-weight: 700;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-link.active {
            color: var(--primary-dark);
            border-color: #cfe2fb;
            background: #edf5ff;
            box-shadow: inset 0 0 0 1px rgba(23, 105, 224, .03);
        }

        .nav-link:focus-visible,
        .btn:focus-visible,
        .search-input:focus-visible,
        .faq-button:focus-visible,
        .menu-button:focus-visible,
        .footer-link:focus-visible {
            outline: 3px solid rgba(23, 105, 224, .24);
            outline-offset: 3px;
        }

        .menu-button {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 12px;
            color: var(--ink);
            background: #fff;
        }

        .mobile-nav {
            display: none;
        }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 64px 0 54px;
            border-bottom: 1px solid #e3edf8;
            background:
                radial-gradient(circle at 15% 10%, rgba(68, 160, 255, .14), transparent 27%),
                radial-gradient(circle at 88% 22%, rgba(13, 148, 136, .1), transparent 23%),
                linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            opacity: .23;
            pointer-events: none;
            background-image: linear-gradient(#c7d8ec 1px, transparent 1px), linear-gradient(90deg, #c7d8ec 1px, transparent 1px);
            background-size: 34px 34px;
            mask-image: linear-gradient(to bottom, black, transparent 82%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 940px;
            margin: 0 auto;
            text-align: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 12px;
            border: 1px solid #cde1f8;
            border-radius: 999px;
            color: #155ab8;
            background: rgba(255, 255, 255, .78);
            font-size: 13px;
            font-weight: 800;
            box-shadow: var(--shadow-sm);
        }

        .eyebrow-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 0 5px rgba(15, 159, 110, .12);
        }

        .hero h1 {
            max-width: 880px;
            margin: 20px auto 14px;
            color: #10213a;
            font-size: clamp(35px, 5.3vw, 62px);
            line-height: 1.13;
            letter-spacing: -.045em;
            font-weight: 900;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero-copy {
            max-width: 790px;
            margin: 0 auto;
            color: #53657d;
            font-size: clamp(16px, 2vw, 18px);
            line-height: 1.9;
        }

        .search-stage {
            max-width: 890px;
            margin: 30px auto 0;
            padding: 12px;
            border: 1px solid rgba(190, 211, 235, .9);
            border-radius: 22px;
            background: rgba(255, 255, 255, .94);
            box-shadow: var(--shadow-lg);
        }

        .search-form {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-field {
            position: relative;
            min-width: 0;
            flex: 1;
        }

        .search-icon {
            position: absolute;
            top: 50%;
            left: 18px;
            width: 21px;
            height: 21px;
            color: #7b8ba0;
            transform: translateY(-50%);
            pointer-events: none;
        }

        .search-input {
            width: 100%;
            height: 56px;
            padding: 0 18px 0 50px;
            border: 1px solid #d6e1ed;
            border-radius: 15px;
            color: var(--ink);
            background: #f9fbfd;
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
        }

        .search-input::placeholder {
            color: #8a9aaf;
        }

        .search-input:focus {
            border-color: #7fb5f4;
            background: #fff;
            box-shadow: 0 0 0 4px rgba(23, 105, 224, .1);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 48px;
            padding: 11px 20px;
            border: 1px solid transparent;
            border-radius: 13px;
            font-weight: 800;
            line-height: 1.2;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
        }

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

        .btn:active {
            transform: translateY(0);
        }

        .btn-primary {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 10px 22px rgba(23, 105, 224, .23);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 13px 26px rgba(14, 79, 174, .27);
        }

        .btn-light {
            color: var(--primary-dark);
            border-color: #c9dff8;
            background: #fff;
        }

        .btn-light:hover {
            border-color: #95bfef;
            background: #f4f9ff;
        }

        .search-submit {
            min-width: 136px;
            height: 56px;
            border-radius: 15px;
        }

        .quick-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 9px;
            margin-top: 20px;
        }

        .quick-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 11px;
            border: 1px solid #dbe6f2;
            border-radius: 999px;
            color: #617189;
            background: rgba(255, 255, 255, .72);
            font-size: 13px;
            font-weight: 650;
        }

        .quick-tag:hover {
            color: var(--primary);
            border-color: #b8d5f5;
            background: #fff;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-top: 22px;
        }

        .section {
            padding: 84px 0;
        }

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

        .section-blue {
            background: linear-gradient(180deg, #eef6ff 0%, #f8fbff 100%);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 30px;
            margin-bottom: 32px;
        }

        .section-title-wrap {
            max-width: 730px;
        }

        .section-kicker {
            display: inline-block;
            margin-bottom: 8px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 850;
            letter-spacing: .08em;
        }

        .section-title {
            margin: 0;
            color: #12213a;
            font-size: clamp(28px, 3.4vw, 42px);
            line-height: 1.22;
            letter-spacing: -.035em;
            font-weight: 880;
        }

        .section-desc {
            max-width: 760px;
            margin: 12px 0 0;
            color: var(--muted);
            font-size: 16px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 800;
            white-space: nowrap;
        }

        .text-link:hover {
            color: var(--primary-dark);
            gap: 9px;
        }

        .kpi-layout {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 28px;
            align-items: stretch;
        }

        .about-panel {
            position: relative;
            overflow: hidden;
            padding: 34px;
            border: 1px solid #d9e5f2;
            border-radius: var(--radius-lg);
            background: #fff;
            box-shadow: var(--shadow-md);
        }

        .about-panel::after {
            content: "";
            position: absolute;
            right: -60px;
            bottom: -80px;
            width: 210px;
            height: 210px;
            border-radius: 50%;
            background: rgba(23, 105, 224, .07);
        }

        .about-panel h2 {
            position: relative;
            z-index: 1;
            margin: 0 0 14px;
            font-size: clamp(28px, 3vw, 39px);
            line-height: 1.25;
            letter-spacing: -.03em;
            font-weight: 880;
        }

        .about-panel p {
            position: relative;
            z-index: 1;
            margin: 0;
            color: var(--muted);
            font-size: 16px;
        }

        .check-list {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 18px;
            margin: 26px 0 0;
            padding: 0;
            list-style: none;
        }

        .check-list li {
            display: flex;
            gap: 10px;
            color: #35475d;
            font-size: 14px;
            font-weight: 700;
        }

        .check {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 21px;
            height: 21px;
            flex: 0 0 21px;
            margin-top: 2px;
            border-radius: 50%;
            color: #fff;
            background: var(--success);
            font-size: 12px;
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .kpi-card {
            padding: 23px;
            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);
        }

        .kpi-card:hover {
            transform: translateY(-3px);
            border-color: #b8d2ef;
            box-shadow: var(--shadow-md);
        }

        .kpi-number {
            display: block;
            color: var(--primary);
            font-size: 29px;
            line-height: 1.15;
            font-weight: 900;
            letter-spacing: -.03em;
        }

        .kpi-label {
            display: block;
            margin-top: 8px;
            color: #34465d;
            font-size: 14px;
            font-weight: 800;
        }

        .kpi-note {
            display: block;
            margin-top: 5px;
            color: var(--muted);
            font-size: 12px;
        }

        .news-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
            gap: 24px;
        }

        .news-panel,
        .rank-panel {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .panel-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            border-bottom: 1px solid #e7edf4;
        }

        .panel-top h3 {
            margin: 0;
            font-size: 19px;
            font-weight: 850;
        }

        .status-badge,
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 9px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 800;
        }

        .status-badge {
            color: #087552;
            background: #e8f8f2;
        }

        .status-badge::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #0f9f6e;
        }

        .news-list {
            margin: 0;
            padding: 0 24px;
            list-style: none;
        }

        .news-item {
            display: grid;
            grid-template-columns: 84px minmax(0, 1fr) auto;
            gap: 18px;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid #e9eef4;
        }

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

        .news-type {
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 850;
        }

        .news-title {
            display: block;
            color: #1c2e45;
            font-size: 16px;
            font-weight: 800;
            line-height: 1.5;
        }

        .news-title:hover {
            color: var(--primary);
        }

        .news-summary {
            display: block;
            margin-top: 4px;
            color: var(--muted);
            font-size: 13px;
        }

        .news-state {
            color: #718197;
            font-size: 12px;
            white-space: nowrap;
        }

        .rank-list {
            margin: 0;
            padding: 8px 22px 18px;
            list-style: none;
            counter-reset: rank;
        }

        .rank-item {
            display: grid;
            grid-template-columns: 32px minmax(0, 1fr) auto;
            gap: 10px;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px dashed #dfe7f0;
            counter-increment: rank;
        }

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

        .rank-item::before {
            content: counter(rank);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 27px;
            height: 27px;
            border-radius: 9px;
            color: #617189;
            background: #edf2f7;
            font-size: 12px;
            font-weight: 900;
        }

        .rank-item:nth-child(-n+3)::before {
            color: #fff;
            background: var(--primary);
        }

        .rank-name {
            color: #293b51;
            font-size: 14px;
            font-weight: 780;
        }

        .trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: #0f8b65;
            font-size: 12px;
            font-weight: 800;
        }

        .service-layout {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 28px;
            align-items: start;
        }

        .service-intro {
            position: sticky;
            top: 104px;
            padding: 30px;
            border-radius: var(--radius-lg);
            color: #fff;
            background: #112b50;
            box-shadow: var(--shadow-lg);
        }

        .service-intro h2 {
            margin: 0 0 14px;
            font-size: 33px;
            line-height: 1.25;
            letter-spacing: -.03em;
            font-weight: 880;
        }

        .service-intro p {
            margin: 0;
            color: #c8d8ec;
        }

        .service-intro .btn {
            width: 100%;
            margin-top: 24px;
            color: #17345a;
            background: #fff;
        }

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

        .service-card {
            min-height: 220px;
            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 {
            transform: translateY(-4px);
            border-color: #bcd5f1;
            box-shadow: var(--shadow-md);
        }

        .icon-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            color: var(--primary);
            background: var(--primary-soft);
        }

        .icon-box svg {
            width: 23px;
            height: 23px;
        }

        .service-card h3 {
            margin: 19px 0 8px;
            font-size: 18px;
            font-weight: 850;
        }

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

        .service-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
            margin-top: 18px;
        }

        .badge {
            color: #55677e;
            background: #f0f4f8;
        }

        .app-shell {
            display: grid;
            grid-template-columns: .84fr 1.16fr;
            gap: 38px;
            align-items: center;
        }

        .app-copy h2 {
            margin: 0;
            font-size: clamp(30px, 4vw, 46px);
            line-height: 1.2;
            letter-spacing: -.04em;
            font-weight: 900;
        }

        .app-copy p {
            margin: 16px 0 0;
            color: var(--muted);
        }

        .app-benefits {
            display: grid;
            gap: 12px;
            margin-top: 24px;
        }

        .app-benefit {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 13px 15px;
            border: 1px solid #d9e6f4;
            border-radius: 13px;
            background: rgba(255, 255, 255, .76);
        }

        .app-benefit strong {
            display: block;
            font-size: 14px;
        }

        .app-benefit span {
            display: block;
            margin-top: 2px;
            color: var(--muted);
            font-size: 12px;
        }

        .app-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }

        .product-stage {
            position: relative;
            padding: 18px;
            border: 1px solid #cbddef;
            border-radius: 25px;
            background: rgba(255, 255, 255, .85);
            box-shadow: var(--shadow-lg);
        }

        .browser-frame {
            overflow: hidden;
            border: 1px solid #d3deea;
            border-radius: 17px;
            background: #fff;
        }

        .browser-bar {
            display: flex;
            align-items: center;
            gap: 7px;
            height: 42px;
            padding: 0 14px;
            border-bottom: 1px solid #e5ebf2;
            background: #f5f7fa;
        }

        .browser-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: #cbd5e1;
        }

        .browser-dot:nth-child(1) { background: #ff7f7f; }
        .browser-dot:nth-child(2) { background: #ffc861; }
        .browser-dot:nth-child(3) { background: #62cf97; }

        .browser-content {
            display: grid;
            grid-template-columns: 142px 1fr;
            min-height: 340px;
        }

        .browser-sidebar {
            padding: 18px 13px;
            background: #f4f8fc;
        }

        .side-line {
            height: 11px;
            margin-bottom: 12px;
            border-radius: 999px;
            background: #dce7f2;
        }

        .side-line.active {
            background: #8bbcf4;
        }

        .browser-main {
            padding: 20px;
        }

        .mock-search {
            height: 34px;
            margin-bottom: 17px;
            border-radius: 9px;
            background: #edf2f7;
        }

        .mock-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .mock-card {
            overflow: hidden;
            border: 1px solid #e1e8f0;
            border-radius: 11px;
        }

        .mock-color {
            height: 88px;
            background: linear-gradient(135deg, #bedaff, #4f8cd7);
        }

        .mock-card:nth-child(2) .mock-color {
            background: linear-gradient(135deg, #f4cf9b, #d97c65);
        }

        .mock-card:nth-child(3) .mock-color {
            background: linear-gradient(135deg, #9dd9ce, #317f81);
        }

        .mock-card:nth-child(4) .mock-color {
            background: linear-gradient(135deg, #d6c9f5, #806fb8);
        }

        .mock-card:nth-child(5) .mock-color {
            background: linear-gradient(135deg, #f5b2b9, #bb5267);
        }

        .mock-card:nth-child(6) .mock-color {
            background: linear-gradient(135deg, #bdcfdd, #536d82);
        }

        .mock-lines {
            padding: 9px;
        }

        .mock-lines span {
            display: block;
            height: 6px;
            margin-bottom: 5px;
            border-radius: 999px;
            background: #e7edf3;
        }

        .mock-lines span:last-child {
            width: 58%;
            margin-bottom: 0;
        }

        .trust-strip {
            display: grid;
            grid-template-columns: 1.1fr repeat(3, .63fr);
            gap: 14px;
        }

        .trust-title,
        .trust-card {
            padding: 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
        }

        .trust-title {
            color: #fff;
            border-color: #123660;
            background: #123660;
        }

        .trust-title h2 {
            margin: 0;
            font-size: 26px;
            line-height: 1.3;
            font-weight: 880;
        }

        .trust-title p {
            margin: 9px 0 0;
            color: #c5d7ea;
            font-size: 14px;
        }

        .trust-card strong {
            display: block;
            color: var(--primary);
            font-size: 17px;
        }

        .trust-card span {
            display: block;
            margin-top: 8px;
            color: var(--muted);
            font-size: 13px;
        }

        .faq-wrap {
            display: grid;
            grid-template-columns: .67fr 1.33fr;
            gap: 34px;
            align-items: start;
        }

        .faq-aside {
            padding: 30px;
            border: 1px solid #d5e5f6;
            border-radius: var(--radius-lg);
            background: #eef6ff;
        }

        .faq-aside h2 {
            margin: 0;
            font-size: 32px;
            line-height: 1.25;
            letter-spacing: -.03em;
            font-weight: 880;
        }

        .faq-aside p {
            margin: 13px 0 0;
            color: var(--muted);
        }

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

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

        .faq-button {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 20px 22px;
            border: 0;
            color: #1f3148;
            background: #fff;
            text-align: left;
            font-weight: 850;
        }

        .faq-button:hover {
            color: var(--primary);
            background: #f9fbfe;
        }

        .faq-plus {
            position: relative;
            width: 24px;
            height: 24px;
            flex: 0 0 24px;
            border-radius: 50%;
            background: #edf4fc;
        }

        .faq-plus::before,
        .faq-plus::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 11px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transform: translate(-50%, -50%);
            transition: transform var(--transition);
        }

        .faq-plus::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }

        .faq-item.open .faq-plus::after {
            transform: translate(-50%, -50%) rotate(0);
        }

        .faq-answer {
            display: grid;
            grid-template-rows: 0fr;
            transition: grid-template-rows 240ms ease;
        }

        .faq-item.open .faq-answer {
            grid-template-rows: 1fr;
        }

        .faq-answer-inner {
            overflow: hidden;
        }

        .faq-answer p {
            margin: 0;
            padding: 0 22px 21px;
            color: var(--muted);
            font-size: 14px;
        }

        .cta-section {
            padding-top: 16px;
            padding-bottom: 86px;
        }

        .cta-bar {
            position: relative;
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 30px;
            align-items: center;
            padding: 38px 42px;
            border-radius: var(--radius-xl);
            color: #fff;
            background: linear-gradient(118deg, #1256b6 0%, #1776e8 58%, #148f9c 100%);
            box-shadow: 0 28px 60px rgba(21, 93, 180, .24);
        }

        .cta-bar::before {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            top: -170px;
            right: 160px;
            border: 45px solid rgba(255, 255, 255, .08);
            border-radius: 50%;
        }

        .cta-content,
        .cta-actions {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            margin: 0;
            font-size: clamp(27px, 3.6vw, 40px);
            line-height: 1.25;
            letter-spacing: -.035em;
            font-weight: 900;
        }

        .cta-content p {
            max-width: 710px;
            margin: 10px 0 0;
            color: #dcecff;
        }

        .cta-actions {
            display: flex;
            gap: 11px;
        }

        .cta-actions .btn-primary {
            color: #164b8d;
            background: #fff;
            box-shadow: none;
        }

        .cta-actions .btn-light {
            color: #fff;
            border-color: rgba(255,255,255,.45);
            background: rgba(255,255,255,.1);
        }

        .site-footer {
            padding: 48px 0 24px;
            color: #c4d0df;
            background: #0d1c30;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.35fr .65fr;
            gap: 50px;
            padding-bottom: 34px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            color: #fff;
            font-size: 18px;
            font-weight: 850;
        }

        .footer-copy {
            max-width: 650px;
            margin: 16px 0 0;
            color: #9eb0c5;
            font-size: 14px;
        }

        .footer-nav-title {
            margin: 0 0 13px;
            color: #fff;
            font-size: 14px;
            font-weight: 850;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
        }

        .footer-link {
            color: #aebdd0;
            font-size: 14px;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 24px;
            padding-top: 22px;
            border-top: 1px solid rgba(192, 208, 226, .14);
            color: #8193a9;
            font-size: 12px;
        }

        .toast {
            position: fixed;
            left: 50%;
            bottom: 26px;
            z-index: 100;
            max-width: calc(100% - 32px);
            padding: 12px 18px;
            border: 1px solid #b8d4f4;
            border-radius: 12px;
            color: #143b6d;
            background: #fff;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transform: translate(-50%, 14px);
            transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            font-size: 14px;
            font-weight: 750;
        }

        .toast.show {
            opacity: 1;
            visibility: visible;
            transform: translate(-50%, 0);
        }

        @media (max-width: 1024px) {
            .kpi-layout,
            .service-layout,
            .app-shell,
            .faq-wrap {
                grid-template-columns: 1fr;
            }

            .service-intro {
                position: static;
            }

            .service-intro .btn {
                width: auto;
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

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

            .trust-title {
                grid-column: 1 / -1;
            }

            .footer-grid {
                grid-template-columns: 1fr .55fr;
            }
        }

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

            .desktop-nav {
                display: none;
            }

            .menu-button {
                display: inline-flex;
            }

            .mobile-nav {
                position: fixed;
                top: 74px;
                right: 14px;
                left: 14px;
                z-index: 49;
                display: grid;
                gap: 8px;
                padding: 13px;
                border: 1px solid var(--border);
                border-radius: 16px;
                background: #fff;
                box-shadow: var(--shadow-lg);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-10px);
                transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            }

            .mobile-nav.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }

            .mobile-nav .nav-link {
                width: 100%;
            }

            .hero {
                padding: 48px 0 44px;
            }

            .search-form {
                flex-direction: column;
                align-items: stretch;
            }

            .search-submit {
                width: 100%;
            }

            .section {
                padding: 66px 0;
            }

            .section-head {
                align-items: flex-start;
                flex-direction: column;
                gap: 14px;
            }

            .check-list,
            .service-grid {
                grid-template-columns: 1fr;
            }

            .news-item {
                grid-template-columns: 70px minmax(0, 1fr);
                gap: 12px;
            }

            .news-state {
                grid-column: 2;
            }

            .browser-content {
                grid-template-columns: 95px 1fr;
            }

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

            .trust-strip {
                grid-template-columns: 1fr;
            }

            .trust-title {
                grid-column: auto;
            }

            .cta-bar {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }

            .cta-actions {
                flex-wrap: wrap;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

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

            .brand-name {
                max-width: 235px;
                font-size: 15px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                flex-basis: 34px;
            }

            .hero h1 {
                font-size: 35px;
            }

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

            .search-stage {
                padding: 8px;
                border-radius: 18px;
            }

            .hero-actions,
            .app-actions,
            .cta-actions {
                align-items: stretch;
                flex-direction: column;
            }

            .hero-actions .btn,
            .app-actions .btn,
            .cta-actions .btn {
                width: 100%;
            }

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

            .about-panel,
            .service-intro,
            .faq-aside {
                padding: 24px;
            }

            .news-list {
                padding: 0 17px;
            }

            .panel-top {
                padding: 18px;
            }

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

            .news-state {
                grid-column: auto;
            }

            .browser-sidebar {
                display: none;
            }

            .browser-content {
                display: block;
                min-height: 300px;
            }

            .browser-main {
                padding: 14px;
            }

            .product-stage {
                padding: 10px;
                border-radius: 18px;
            }

            .mock-color {
                height: 72px;
            }

            .cta-bar {
                padding: 28px 22px;
                border-radius: 23px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *, *::before, *::after {
                transition-duration: .01ms !important;
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
            }
        }

/* roulang page: category1 */
:root {
 --primary: #1769e0;
 --primary-dark: #0e4fae;
 --primary-soft: #eaf3ff;
 --secondary: #0d9488;
 --accent: #f59e0b;
 --ink: #122033;
 --muted: #64748b;
 --muted-light: #94a3b8;
 --surface: #ffffff;
 --surface-alt: #f5f8fc;
 --surface-blue: #eef6ff;
 --border: #dce5f0;
 --border-strong: #c8d5e5;
 --success: #0f9f6e;
 --danger: #dc4c64;
 --radius-sm: 10px;
 --radius-md: 16px;
 --radius-lg: 24px;
 --radius-xl: 32px;
 --shadow-sm: 0 6px 18px rgba(31, 54, 86, .06);
 --shadow-md: 0 16px 40px rgba(31, 69, 120, .11);
 --shadow-lg: 0 28px 70px rgba(19, 75, 145, .16);
 --transition: 180ms ease;
}
*,
*::before,
*::after {
 box-sizing: border-box;
}
html {
 scroll-behavior: smooth;
 scroll-padding-top: 92px;
}
body {
 margin: 0;
 color: var(--ink);
 background: var(--surface);
 font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
 line-height: 1.7;
 -webkit-font-smoothing: antialiased;
 text-rendering: optimizeLegibility;
}
body.menu-open {
 overflow: hidden;
}
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 {
 display: block;
 max-width: 100%;
}
.site-container {
 width: min(1180px, calc(100% - 40px));
 margin-inline: auto;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 50;
 min-height: 74px;
 border-bottom: 1px solid rgba(220, 229, 240, .88);
 background: rgba(255, 255, 255, .92);
 backdrop-filter: blur(18px);
 box-shadow: 0 5px 20px rgba(18, 32, 51, .035);
}
.nav-wrap {
 min-height: 74px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 28px;
}
.brand {
 display: inline-flex;
 align-items: center;
 gap: 12px;
 flex: 0 1 auto;
 min-width: 0;
 font-weight: 850;
 letter-spacing: -.02em;
 color: #10213a;
}
.brand-mark {
 position: relative;
 width: 38px;
 height: 38px;
 flex: 0 0 38px;
 overflow: hidden;
 border-radius: 12px;
 background: linear-gradient(145deg, #1770ea, #43a4ff);
 box-shadow: 0 9px 20px rgba(23, 105, 224, .26);
}
.brand-mark::before,
.brand-mark::after {
 content: "";
 position: absolute;
 border-radius: 50%;
}
.brand-mark::before {
 width: 22px;
 height: 22px;
 top: 6px;
 left: 6px;
 border: 4px solid rgba(255, 255, 255, .92);
}
.brand-mark::after {
 width: 9px;
 height: 9px;
 right: 4px;
 bottom: 4px;
 background: #ffcc65;
 box-shadow: 0 0 0 3px rgba(255, 255, 255, .36);
}
.brand-name {
 max-width: 360px;
 font-size: 18px;
 white-space: nowrap;
 overflow: hidden;
 text-overflow: ellipsis;
}
.desktop-nav {
 display: flex;
 align-items: center;
 gap: 8px;
}
.nav-link {
 position: relative;
 display: inline-flex;
 align-items: center;
 min-height: 42px;
 padding: 8px 17px;
 border: 1px solid transparent;
 border-radius: 12px;
 color: #52637a;
 font-size: 15px;
 font-weight: 700;
}
.nav-link:hover {
 color: var(--primary);
 background: var(--primary-soft);
}
.nav-link.active {
 color: var(--primary-dark);
 border-color: #cfe2fb;
 background: #edf5ff;
 box-shadow: inset 0 0 0 1px rgba(23, 105, 224, .03);
}
.nav-link:focus-visible,
.btn:focus-visible,
.form-control:focus-visible,
.faq-button:focus-visible,
.menu-button:focus-visible,
.footer-link:focus-visible {
 outline: 3px solid rgba(23, 105, 224, .24);
 outline-offset: 3px;
}
.menu-button {
 display: none;
 width: 44px;
 height: 44px;
 align-items: center;
 justify-content: center;
 border: 1px solid var(--border);
 border-radius: 12px;
 color: var(--ink);
 background: #fff;
 transition: all var(--transition);
}
.menu-button:hover {
 color: var(--primary);
 border-color: #bcd3ee;
 background: var(--primary-soft);
}
.mobile-nav {
 display: none;
}
.category-hero {
 position: relative;
 overflow: hidden;
 padding: 76px 0 68px;
 border-bottom: 1px solid #e3edf8;
 background:
  radial-gradient(circle at 8% 5%, rgba(68, 160, 255, .17), transparent 29%),
  radial-gradient(circle at 92% 36%, rgba(13, 148, 136, .11), transparent 25%),
  linear-gradient(180deg, #f7fbff 0%, #fff 100%);
}
.category-hero::before {
 content: "";
 position: absolute;
 inset: 0;
 opacity: .23;
 pointer-events: none;
 background-image: linear-gradient(#c7d8ec 1px, transparent 1px), linear-gradient(90deg, #c7d8ec 1px, transparent 1px);
 background-size: 34px 34px;
 mask-image: linear-gradient(to bottom, black, transparent 88%);
}
.hero-grid {
 position: relative;
 z-index: 1;
 display: grid;
 grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr);
 gap: 58px;
 align-items: center;
}
.eyebrow {
 display: inline-flex;
 align-items: center;
 gap: 9px;
 width: fit-content;
 padding: 7px 12px;
 border: 1px solid #cfe2fb;
 border-radius: 999px;
 color: var(--primary-dark);
 background: rgba(238, 246, 255, .88);
 font-size: 13px;
 font-weight: 800;
 letter-spacing: .04em;
}
.eyebrow-dot {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: var(--secondary);
 box-shadow: 0 0 0 5px rgba(13, 148, 136, .12);
}
.hero-title {
 max-width: 760px;
 margin: 20px 0 18px;
 color: #10213a;
 font-size: clamp(38px, 5.2vw, 66px);
 line-height: 1.12;
 letter-spacing: -.045em;
 font-weight: 900;
}
.hero-title span {
 color: var(--primary);
}
.hero-summary {
 max-width: 700px;
 margin: 0;
 color: #52637a;
 font-size: 18px;
 line-height: 1.9;
}
.hero-actions {
 display: flex;
 flex-wrap: wrap;
 gap: 12px;
 margin-top: 30px;
}
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 9px;
 min-height: 48px;
 padding: 11px 20px;
 border: 1px solid transparent;
 border-radius: 13px;
 font-weight: 800;
 line-height: 1.2;
 transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.btn:hover {
 transform: translateY(-2px);
}
.btn:active {
 transform: translateY(0);
}
.btn-primary {
 color: #fff;
 background: var(--primary);
 box-shadow: 0 12px 28px rgba(23, 105, 224, .24);
}
.btn-primary:hover {
 background: var(--primary-dark);
 box-shadow: 0 16px 34px rgba(23, 105, 224, .3);
}
.btn-secondary {
 color: var(--primary-dark);
 border-color: #cbdcf0;
 background: rgba(255,255,255,.9);
}
.btn-secondary:hover {
 border-color: #9fc3ec;
 background: var(--primary-soft);
}
.hero-note {
 display: flex;
 align-items: flex-start;
 gap: 10px;
 margin-top: 22px;
 color: var(--muted);
 font-size: 14px;
}
.hero-note svg {
 flex: 0 0 19px;
 margin-top: 3px;
 color: var(--success);
}
.preview-panel {
 padding: 26px;
 border: 1px solid rgba(200, 213, 229, .85);
 border-radius: var(--radius-xl);
 background: rgba(255, 255, 255, .94);
 box-shadow: var(--shadow-lg);
}
.preview-top {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 margin-bottom: 22px;
}
.preview-label {
 margin: 0;
 color: var(--muted);
 font-size: 13px;
 font-weight: 800;
 letter-spacing: .08em;
}
.status-badge {
 display: inline-flex;
 align-items: center;
 gap: 7px;
 padding: 6px 10px;
 border-radius: 999px;
 color: #087463;
 background: #e4faf5;
 font-size: 12px;
 font-weight: 800;
}
.progress-layout {
 display: grid;
 grid-template-columns: 158px 1fr;
 gap: 24px;
 align-items: center;
}
.progress-ring {
 --progress: 76;
 position: relative;
 width: 158px;
 height: 158px;
 border-radius: 50%;
 background: conic-gradient(var(--primary) calc(var(--progress) * 1%), #e7eef7 0);
 display: grid;
 place-items: center;
 box-shadow: inset 0 0 0 1px rgba(23,105,224,.05);
}
.progress-ring::before {
 content: "";
 position: absolute;
 width: 124px;
 height: 124px;
 border-radius: 50%;
 background: #fff;
 box-shadow: inset 0 0 0 1px #e4ebf4;
}
.progress-value {
 position: relative;
 z-index: 1;
 text-align: center;
}
.progress-value strong {
 display: block;
 color: #10213a;
 font-size: 32px;
 line-height: 1;
}
.progress-value span {
 display: block;
 margin-top: 7px;
 color: var(--muted);
 font-size: 12px;
 font-weight: 700;
}
.progress-copy h2 {
 margin: 0 0 7px;
 font-size: 20px;
 line-height: 1.35;
}
.progress-copy p {
 margin: 0;
 color: var(--muted);
 font-size: 14px;
 line-height: 1.75;
}
.tier-list {
 display: grid;
 gap: 10px;
 margin-top: 23px;
}
.tier {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 padding: 13px 15px;
 border: 1px solid var(--border);
 border-radius: 13px;
 background: #fbfdff;
 transition: all var(--transition);
}
.tier:hover {
 border-color: #b7d2f3;
 background: var(--primary-soft);
 transform: translateX(3px);
}
.tier strong {
 display: block;
 font-size: 14px;
}
.tier small {
 color: var(--muted);
 font-size: 12px;
}
.tier-tag {
 flex: 0 0 auto;
 padding: 5px 9px;
 border-radius: 8px;
 color: var(--primary-dark);
 background: #dcecff;
 font-size: 12px;
 font-weight: 800;
}
.section {
 padding: 86px 0;
}
.section-alt {
 background: var(--surface-alt);
}
.section-blue {
 background: var(--surface-blue);
}
.section-heading {
 max-width: 760px;
 margin-bottom: 38px;
}
.section-kicker {
 display: block;
 margin-bottom: 9px;
 color: var(--primary);
 font-size: 13px;
 font-weight: 850;
 letter-spacing: .1em;
}
.section-title {
 margin: 0;
 color: #10213a;
 font-size: clamp(29px, 4vw, 43px);
 line-height: 1.25;
 letter-spacing: -.035em;
 font-weight: 900;
}
.section-desc {
 max-width: 710px;
 margin: 14px 0 0;
 color: var(--muted);
 font-size: 17px;
}
.metrics-board {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-md);
}
.metric-item {
 position: relative;
 padding: 30px 26px;
}
.metric-item + .metric-item {
 border-left: 1px solid var(--border);
}
.metric-icon {
 width: 42px;
 height: 42px;
 display: grid;
 place-items: center;
 margin-bottom: 18px;
 border-radius: 12px;
 color: var(--primary);
 background: var(--primary-soft);
}
.metric-value {
 display: block;
 color: #10213a;
 font-size: 31px;
 line-height: 1.15;
 font-weight: 900;
 letter-spacing: -.03em;
}
.metric-label {
 display: block;
 margin-top: 6px;
 color: var(--muted);
 font-size: 14px;
}
.metric-footnote {
 margin: 16px 0 0;
 color: var(--muted-light);
 font-size: 13px;
}
.matrix-layout {
 display: grid;
 grid-template-columns: .78fr 1.22fr;
 gap: 44px;
 align-items: start;
}
.sticky-copy {
 position: sticky;
 top: 112px;
}
.feature-checks {
 display: grid;
 gap: 13px;
 margin: 25px 0 0;
 padding: 0;
 list-style: none;
}
.feature-checks li {
 display: flex;
 align-items: flex-start;
 gap: 11px;
 color: #405169;
}
.check-icon {
 width: 23px;
 height: 23px;
 flex: 0 0 23px;
 display: grid;
 place-items: center;
 margin-top: 2px;
 border-radius: 50%;
 color: #fff;
 background: var(--secondary);
 font-size: 13px;
 font-weight: 900;
}
.matrix-grid {
 display: grid;
 grid-template-columns: repeat(2, minmax(0, 1fr));
 gap: 18px;
}
.service-card {
 position: relative;
 min-height: 232px;
 padding: 25px;
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-sm);
 transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
 transform: translateY(-5px);
 border-color: #bad3f2;
 box-shadow: var(--shadow-md);
}
.service-card::after {
 content: "";
 position: absolute;
 width: 110px;
 height: 110px;
 right: -45px;
 bottom: -50px;
 border-radius: 50%;
 background: var(--primary-soft);
}
.service-number {
 display: inline-flex;
 width: 38px;
 height: 38px;
 align-items: center;
 justify-content: center;
 border-radius: 11px;
 color: var(--primary-dark);
 background: var(--primary-soft);
 font-size: 13px;
 font-weight: 900;
}
.service-card h3 {
 position: relative;
 z-index: 1;
 margin: 20px 0 8px;
 font-size: 20px;
}
.service-card p {
 position: relative;
 z-index: 1;
 margin: 0;
 color: var(--muted);
 font-size: 14px;
}
.palette-strip {
 display: flex;
 gap: 5px;
 margin-top: 19px;
}
.palette-strip span {
 width: 28px;
 height: 8px;
 border-radius: 999px;
}
.comparison-wrap {
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 background: #fff;
 box-shadow: var(--shadow-md);
}
.comparison-head,
.comparison-row {
 display: grid;
 grid-template-columns: 1.1fr 1fr 1fr;
}
.comparison-head {
 color: #fff;
 background: #142d4f;
 font-weight: 800;
}
.comparison-head div,
.comparison-row div {
 padding: 19px 24px;
}
.comparison-row + .comparison-row {
 border-top: 1px solid var(--border);
}
.comparison-row:nth-child(odd) {
 background: #f9fbfe;
}
.comparison-row div:not(:first-child),
.comparison-head div:not(:first-child) {
 border-left: 1px solid rgba(220, 229, 240, .78);
}
.comparison-row strong {
 font-size: 15px;
}
.comparison-muted {
 color: #8a98aa;
}
.comparison-good {
 display: inline-flex;
 align-items: center;
 gap: 7px;
 color: #087a66;
 font-weight: 800;
}
.process-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 18px;
}
.process-step {
 position: relative;
 padding: 25px 22px;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.process-step:not(:last-child)::after {
 content: "";
 position: absolute;
 top: 41px;
 right: -19px;
 z-index: 2;
 width: 19px;
 height: 2px;
 background: #bad2ef;
}
.step-index {
 width: 34px;
 height: 34px;
 display: grid;
 place-items: center;
 border-radius: 50%;
 color: #fff;
 background: var(--primary);
 box-shadow: 0 7px 16px rgba(23,105,224,.2);
 font-size: 13px;
 font-weight: 900;
}
.process-step h3 {
 margin: 17px 0 7px;
 font-size: 18px;
}
.process-step p {
 margin: 0;
 color: var(--muted);
 font-size: 14px;
}
.faq-layout {
 display: grid;
 grid-template-columns: .68fr 1.32fr;
 gap: 50px;
 align-items: start;
}
.faq-list {
 display: grid;
 gap: 13px;
}
.faq-item {
 overflow: hidden;
 border: 1px solid var(--border);
 border-radius: var(--radius-md);
 background: #fff;
 box-shadow: var(--shadow-sm);
}
.faq-button {
 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: 800;
 transition: color var(--transition), background var(--transition);
}
.faq-button:hover {
 color: var(--primary-dark);
 background: #f8fbff;
}
.faq-icon {
 width: 29px;
 height: 29px;
 flex: 0 0 29px;
 display: grid;
 place-items: center;
 border-radius: 9px;
 color: var(--primary);
 background: var(--primary-soft);
 transition: transform var(--transition);
}
.faq-answer {
 display: none;
 padding: 0 22px 20px;
 color: var(--muted);
 font-size: 15px;
}
.faq-answer p {
 margin: 0;
}
.faq-item.open .faq-answer {
 display: block;
}
.faq-item.open .faq-icon {
 transform: rotate(45deg);
}
.support-section {
 padding: 86px 0;
 background:
  radial-gradient(circle at 90% 10%, rgba(74, 165, 255, .19), transparent 26%),
  #102b50;
}
.support-card {
 display: grid;
 grid-template-columns: .9fr 1.1fr;
 gap: 52px;
 align-items: center;
}
.support-copy {
 color: #fff;
}
.support-copy .section-kicker {
 color: #74c6ff;
}
.support-copy .section-title {
 color: #fff;
}
.support-copy p {
 margin: 16px 0 0;
 color: #c8d7e9;
}
.support-points {
 display: grid;
 gap: 11px;
 margin: 24px 0 0;
 padding: 0;
 list-style: none;
}
.support-points li {
 display: flex;
 align-items: center;
 gap: 10px;
 color: #eaf4ff;
 font-size: 14px;
}
.support-form {
 padding: 29px;
 border: 1px solid rgba(255,255,255,.18);
 border-radius: var(--radius-lg);
 background: rgba(255,255,255,.97);
 box-shadow: var(--shadow-lg);
}
.form-title {
 margin: 0 0 5px;
 font-size: 22px;
}
.form-intro {
 margin: 0 0 21px;
 color: var(--muted);
 font-size: 14px;
}
.form-grid {
 display: grid;
 grid-template-columns: repeat(2, minmax(0, 1fr));
 gap: 16px;
}
.form-field {
 display: grid;
 gap: 7px;
}
.form-field.full {
 grid-column: 1 / -1;
}
.form-label {
 color: #35475f;
 font-size: 13px;
 font-weight: 800;
}
.form-control {
 width: 100%;
 min-height: 47px;
 padding: 10px 13px;
 border: 1px solid var(--border-strong);
 border-radius: 11px;
 color: var(--ink);
 background: #fff;
 transition: border-color var(--transition), box-shadow var(--transition);
}
textarea.form-control {
 min-height: 98px;
 resize: vertical;
}
.form-control:hover {
 border-color: #9ebbdc;
}
.form-control:focus {
 border-color: var(--primary);
 box-shadow: 0 0 0 4px rgba(23,105,224,.11);
 outline: none;
}
.form-submit {
 width: 100%;
 margin-top: 18px;
}
.form-help {
 margin: 12px 0 0;
 color: var(--muted);
 font-size: 12px;
 text-align: center;
}
.form-message {
 display: none;
 margin-top: 14px;
 padding: 11px 13px;
 border-radius: 10px;
 color: #087463;
 background: #e5faf5;
 font-size: 13px;
 font-weight: 700;
}
.form-message.show {
 display: block;
}
.site-footer {
 padding: 58px 0 24px;
 color: #b9c8da;
 background: #0b1d35;
}
.footer-grid {
 display: grid;
 grid-template-columns: 1.25fr .75fr;
 gap: 70px;
 padding-bottom: 40px;
}
.footer-brand {
 display: inline-flex;
 align-items: center;
 gap: 12px;
 color: #fff;
 font-size: 18px;
 font-weight: 850;
}
.footer-copy {
 max-width: 650px;
 margin: 18px 0 0;
 color: #9fb0c5;
 font-size: 14px;
}
.footer-nav-title {
 margin: 0 0 15px;
 color: #fff;
 font-size: 15px;
}
.footer-links {
 display: grid;
 gap: 10px;
}
.footer-link {
 width: fit-content;
 color: #aebed1;
 font-size: 14px;
}
.footer-link:hover {
 color: #fff;
 transform: translateX(3px);
}
.footer-bottom {
 display: flex;
 justify-content: space-between;
 gap: 20px;
 padding-top: 22px;
 border-top: 1px solid rgba(255,255,255,.1);
 color: #7f93ab;
 font-size: 13px;
}
@media (max-width: 1024px) {
 .hero-grid {
  grid-template-columns: 1fr;
  gap: 38px;
 }
 .preview-panel {
  max-width: 720px;
 }
 .metrics-board {
  grid-template-columns: repeat(2, 1fr);
 }
 .metric-item:nth-child(3) {
  border-left: 0;
  border-top: 1px solid var(--border);
 }
 .metric-item:nth-child(4) {
  border-top: 1px solid var(--border);
 }
 .matrix-layout,
 .faq-layout {
  grid-template-columns: 1fr;
 }
 .sticky-copy {
  position: static;
 }
 .process-grid {
  grid-template-columns: repeat(2, 1fr);
 }
 .process-step:nth-child(2)::after {
  display: none;
 }
 .support-card {
  grid-template-columns: 1fr;
 }
}
@media (max-width: 768px) {
 .site-container {
  width: min(100% - 28px, 1180px);
 }
 .site-header,
 .nav-wrap {
  min-height: 68px;
 }
 .brand-name {
  max-width: 230px;
  font-size: 16px;
 }
 .desktop-nav {
  display: none;
 }
 .menu-button {
  display: inline-flex;
 }
 .mobile-nav {
  position: fixed;
  top: 68px;
  left: 14px;
  right: 14px;
  z-index: 49;
  display: none;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.98);
  box-shadow: var(--shadow-lg);
 }
 .mobile-nav.open {
  display: grid;
  gap: 7px;
 }
 .mobile-nav .nav-link {
  width: 100%;
 }
 .category-hero {
  padding: 55px 0 48px;
 }
 .hero-title {
  font-size: clamp(36px, 10vw, 52px);
 }
 .hero-summary {
  font-size: 16px;
 }
 .section {
  padding: 66px 0;
 }
 .section-heading {
  margin-bottom: 29px;
 }
 .matrix-grid {
  grid-template-columns: 1fr;
 }
 .comparison-wrap {
  overflow-x: auto;
 }
 .comparison-head,
 .comparison-row {
  min-width: 690px;
 }
 .footer-grid {
  grid-template-columns: 1fr;
  gap: 34px;
 }
 .footer-bottom {
  flex-direction: column;
  gap: 8px;
 }
}
@media (max-width: 520px) {
 .site-container {
  width: min(100% - 22px, 1180px);
 }
 .brand-name {
  max-width: 205px;
  font-size: 15px;
 }
 .brand-mark {
  width: 35px;
  height: 35px;
  flex-basis: 35px;
 }
 .hero-actions {
  display: grid;
 }
 .hero-actions .btn {
  width: 100%;
 }
 .preview-panel {
  padding: 20px;
  border-radius: 22px;
 }
 .progress-layout {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
 }
 .tier {
  align-items: flex-start;
 }
 .metrics-board {
  grid-template-columns: 1fr;
 }
 .metric-item + .metric-item,
 .metric-item:nth-child(3) {
  border-top: 1px solid var(--border);
  border-left: 0;
 }
 .process-grid {
  grid-template-columns: 1fr;
 }
 .process-step::after {
  display: none;
 }
 .form-grid {
  grid-template-columns: 1fr;
 }
 .form-field.full {
  grid-column: auto;
 }
 .support-form {
  padding: 21px;
 }
 .section-title {
  font-size: 30px;
 }
}
@media (prefers-reduced-motion: reduce) {
 html {
  scroll-behavior: auto;
 }
 *,
 *::before,
 *::after {
  animation-duration: .01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: .01ms !important;
 }
}