/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1747b8;
            --primary-light: #eaf2ff;
            --secondary: #08a6a6;
            --accent: #ff7a45;
            --accent-dark: #d94e1f;
            --ink: #12213f;
            --text: #35425d;
            --muted: #6f7d96;
            --background: #f6f9ff;
            --surface: #ffffff;
            --surface-soft: #eef5ff;
            --border: #dbe5f4;
            --success: #13865f;
            --warning: #f2a527;
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --shadow-sm: 0 8px 22px rgba(33, 70, 130, .08);
            --shadow-md: 0 18px 45px rgba(33, 70, 130, .13);
            --shadow-lg: 0 28px 70px rgba(27, 64, 126, .18);
            --transition: 180ms ease;
            --section-space: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            overflow-x: hidden;
            color: var(--text);
            background: var(--background);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        body.menu-open {
            overflow: hidden;
        }

        h1, h2, h3, h4, p, ul, ol, figure {
            margin-top: 0;
        }

        h1, h2, h3, h4 {
            color: var(--ink);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -.025em;
        }

        h2 {
            margin-bottom: 16px;
            font-size: clamp(30px, 4vw, 46px);
        }

        h3 {
            margin-bottom: 10px;
            font-size: 21px;
        }

        p {
            margin-bottom: 18px;
        }

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

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

        button, input {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

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

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

        :focus-visible {
            outline: 3px solid rgba(37, 99, 235, .32);
            outline-offset: 3px;
        }

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

        .section {
            position: relative;
            padding: var(--section-space) 0;
        }

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

        .section-heading {
            max-width: 740px;
            margin-bottom: 42px;
        }

        .section-heading.centered {
            margin-right: auto;
            margin-left: auto;
            text-align: center;
        }

        .section-heading p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 17px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 15px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 800;
            letter-spacing: .08em;
        }

        .eyebrow::before {
            width: 24px;
            height: 3px;
            border-radius: 99px;
            background: var(--accent);
            content: "";
        }

        .badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 28px;
            padding: 4px 11px;
            border-radius: 999px;
            color: var(--primary-dark);
            background: var(--primary-light);
            font-size: 12px;
            font-weight: 800;
        }

        .badge-hot {
            color: #9d3517;
            background: #fff0e9;
        }

        .badge-green {
            color: #08715b;
            background: #e4f9f2;
        }

        .button,
        .button.primary-action,
        .button.secondary-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 50px;
            margin: 0;
            padding: 13px 23px;
            border: 1px solid transparent;
            border-radius: 12px;
            font-weight: 800;
            line-height: 1.2;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
        }

        .button.primary-action {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 12px 25px rgba(37, 99, 235, .24);
        }

        .button.primary-action:hover,
        .button.primary-action:focus {
            color: #fff;
            background: var(--primary-dark);
            box-shadow: 0 16px 30px rgba(37, 99, 235, .32);
            transform: translateY(-2px);
        }

        .button.secondary-action {
            color: var(--ink);
            border-color: var(--border);
            background: #fff;
        }

        .button.secondary-action:hover,
        .button.secondary-action:focus {
            color: var(--primary);
            border-color: #9bbaf0;
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .button.accent-action {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 14px 30px rgba(255, 122, 69, .3);
        }

        .button.accent-action:hover {
            color: #fff;
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-weight: 800;
        }

        .text-link::after {
            content: "→";
            transition: transform var(--transition);
        }

        .text-link:hover::after {
            transform: translateX(4px);
        }

        .site-header {
            position: sticky;
            z-index: 1000;
            top: 0;
            border-bottom: 1px solid rgba(219, 229, 244, .9);
            background: rgba(255, 255, 255, .94);
            box-shadow: 0 8px 30px rgba(34, 69, 126, .06);
            backdrop-filter: blur(18px);
        }

        .nav-wrap {
            display: flex;
            min-height: 78px;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        .brand {
            display: flex;
            max-width: 380px;
            align-items: center;
            gap: 12px;
            color: var(--ink);
            font-size: 18px;
            font-weight: 900;
            line-height: 1.25;
        }

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

        .brand-mark {
            position: relative;
            display: grid;
            width: 42px;
            height: 42px;
            flex: 0 0 42px;
            place-items: center;
            border-radius: 13px;
            color: #fff;
            background: var(--primary);
            box-shadow: 0 10px 22px rgba(37, 99, 235, .24);
        }

        .brand-mark::before {
            width: 0;
            height: 0;
            margin-left: 3px;
            border-top: 7px solid transparent;
            border-bottom: 7px solid transparent;
            border-left: 11px solid #fff;
            content: "";
        }

        .desktop-navigation {
            display: flex;
            flex: 1;
            align-items: center;
            justify-content: flex-end;
            gap: 24px;
        }

        .main-menu {
            display: flex;
            margin: 0;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .main-menu a {
            position: relative;
            display: block;
            padding: 10px 13px;
            border-radius: 10px;
            color: var(--text);
            font-weight: 700;
        }

        .main-menu a:hover,
        .main-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .main-menu a.active::after {
            position: absolute;
            right: 14px;
            bottom: 4px;
            left: 14px;
            height: 2px;
            border-radius: 9px;
            background: var(--primary);
            content: "";
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-actions .button {
            min-height: 42px;
            padding: 10px 16px;
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            padding: 10px;
            border: 1px solid var(--border);
            border-radius: 11px;
            background: #fff;
        }

        .menu-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            margin: 5px 0;
            border-radius: 10px;
            background: var(--ink);
            transition: transform var(--transition), opacity var(--transition);
        }

        .mobile-panel {
            display: none;
        }

        .hero {
            position: relative;
            min-height: 650px;
            padding: 78px 0 68px;
            overflow: hidden;
            background:
                radial-gradient(circle at 12% 15%, rgba(83, 153, 255, .22), transparent 29%),
                radial-gradient(circle at 87% 20%, rgba(8, 166, 166, .16), transparent 25%),
                linear-gradient(135deg, #f9fbff 0%, #edf4ff 54%, #f9fcff 100%);
        }

        .hero::before,
        .hero::after {
            position: absolute;
            border: 1px solid rgba(37, 99, 235, .12);
            border-radius: 50%;
            content: "";
        }

        .hero::before {
            top: -210px;
            right: -110px;
            width: 520px;
            height: 520px;
        }

        .hero::after {
            bottom: -240px;
            left: -130px;
            width: 460px;
            height: 460px;
        }

        .hero-stage {
            position: relative;
            z-index: 2;
            max-width: 1050px;
            margin: 0 auto;
            text-align: center;
        }

        .promo-label {
            display: inline-flex;
            margin-bottom: 22px;
            padding: 8px 14px;
            align-items: center;
            gap: 9px;
            border: 1px solid #bfd3f7;
            border-radius: 999px;
            color: var(--primary-dark);
            background: rgba(255, 255, 255, .78);
            font-size: 14px;
            font-weight: 800;
            box-shadow: var(--shadow-sm);
        }

        .promo-label i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 5px rgba(255, 122, 69, .15);
        }

        .hero h1 {
            max-width: 980px;
            margin: 0 auto 24px;
            font-size: clamp(40px, 6.4vw, 76px);
            letter-spacing: -.045em;
        }

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

        .hero-copy {
            max-width: 820px;
            margin: 0 auto 30px;
            color: #52627e;
            font-size: clamp(17px, 2vw, 20px);
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            margin-bottom: 34px;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 13px;
        }

        .hero-actions .button {
            min-height: 56px;
            padding-right: 28px;
            padding-left: 28px;
        }

        .burst {
            position: absolute;
            z-index: 3;
            top: 24px;
            right: 3%;
            display: grid;
            width: 116px;
            height: 116px;
            padding: 16px;
            place-items: center;
            border-radius: 38% 62% 48% 52% / 54% 45% 55% 46%;
            color: #fff;
            background: var(--accent);
            box-shadow: 0 20px 45px rgba(255, 122, 69, .27);
            font-size: 15px;
            font-weight: 900;
            line-height: 1.35;
            text-align: center;
            transform: rotate(7deg);
        }

        .hero-proof {
            display: grid;
            max-width: 880px;
            margin: 0 auto;
            grid-template-columns: repeat(3, 1fr);
            border: 1px solid rgba(185, 205, 237, .9);
            border-radius: 20px;
            background: rgba(255, 255, 255, .85);
            box-shadow: var(--shadow-md);
            backdrop-filter: blur(12px);
        }

        .proof-item {
            padding: 21px 24px;
        }

        .proof-item + .proof-item {
            border-left: 1px solid var(--border);
        }

        .proof-item strong {
            display: block;
            color: var(--ink);
            font-size: 22px;
        }

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

        .story-layout {
            display: grid;
            align-items: center;
            grid-template-columns: .88fr 1.12fr;
            gap: 68px;
        }

        .story-visual {
            position: relative;
            min-height: 490px;
            padding: 38px;
            overflow: hidden;
            border-radius: var(--radius-lg);
            background: #15376f;
            box-shadow: var(--shadow-lg);
        }

        .story-visual::before {
            position: absolute;
            top: -90px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(85, 169, 255, .22);
            content: "";
        }

        .story-visual::after {
            position: absolute;
            bottom: -70px;
            left: -70px;
            width: 210px;
            height: 210px;
            border-radius: 50%;
            background: rgba(22, 213, 188, .14);
            content: "";
        }

        .vertical-ribbon {
            position: relative;
            z-index: 2;
            display: grid;
            min-height: 414px;
            padding: 30px;
            align-content: space-between;
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 24px;
            color: #fff;
            background:
                linear-gradient(180deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03)),
                repeating-linear-gradient(135deg, transparent 0 20px, rgba(255, 255, 255, .025) 20px 40px);
        }

        .vertical-ribbon .mini-label {
            width: max-content;
            padding: 7px 11px;
            border-radius: 999px;
            color: #dbeaff;
            background: rgba(255, 255, 255, .12);
            font-size: 13px;
            font-weight: 800;
        }

        .vertical-ribbon h3 {
            max-width: 340px;
            margin-bottom: 14px;
            color: #fff;
            font-size: clamp(29px, 4vw, 42px);
        }

        .vertical-ribbon p {
            max-width: 380px;
            margin-bottom: 0;
            color: #c6d7f3;
        }

        .story-copy > p {
            color: var(--muted);
            font-size: 17px;
        }

        .story-points {
            display: grid;
            margin-top: 30px;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .story-point {
            padding: 19px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .story-point b {
            display: block;
            margin-bottom: 5px;
            color: var(--ink);
        }

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

        .feature-strip {
            display: grid;
            margin-top: 54px;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .feature-chip {
            display: flex;
            padding: 18px;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
            border-radius: 15px;
            background: var(--surface-soft);
            color: var(--ink);
            font-weight: 800;
        }

        .feature-chip i {
            display: grid;
            width: 34px;
            height: 34px;
            flex: 0 0 34px;
            place-items: center;
            border-radius: 10px;
            color: var(--primary);
            background: #fff;
            font-style: normal;
        }

        .featured-section {
            overflow: hidden;
            background: #edf4ff;
        }

        .featured-toolbar {
            display: flex;
            margin-bottom: 28px;
            align-items: end;
            justify-content: space-between;
            gap: 20px;
        }

        .featured-toolbar .section-heading {
            margin-bottom: 0;
        }

        .scroll-hint {
            color: var(--muted);
            font-size: 14px;
            white-space: nowrap;
        }

        .content-rail {
            display: grid;
            padding: 8px 4px 26px;
            grid-auto-columns: minmax(280px, 360px);
            grid-auto-flow: column;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            scrollbar-color: #a8bde1 transparent;
            scrollbar-width: thin;
        }

        .content-card {
            overflow: hidden;
            border: 1px solid var(--border);
            border-radius: 22px;
            background: #fff;
            box-shadow: var(--shadow-sm);
            scroll-snap-align: start;
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .card-scene {
            position: relative;
            display: flex;
            min-height: 210px;
            padding: 20px;
            align-items: flex-end;
            overflow: hidden;
        }

        .scene-city {
            background:
                linear-gradient(180deg, transparent 20%, rgba(10, 28, 61, .76)),
                linear-gradient(135deg, #7ab2ff, #17488d 65%, #102955);
        }

        .scene-nature {
            background:
                linear-gradient(180deg, transparent, rgba(4, 60, 54, .72)),
                linear-gradient(135deg, #79dbcc, #178776 65%, #0d4f50);
        }

        .scene-life {
            background:
                linear-gradient(180deg, transparent, rgba(92, 42, 17, .68)),
                linear-gradient(135deg, #ffd28d, #ff8e5d 64%, #b94a45);
        }

        .scene-creative {
            background:
                linear-gradient(180deg, transparent, rgba(49, 26, 90, .74)),
                linear-gradient(135deg, #d5b5ff, #7655d9 62%, #392976);
        }

        .card-scene::before {
            position: absolute;
            top: 22px;
            right: 25px;
            width: 96px;
            height: 96px;
            border: 18px solid rgba(255, 255, 255, .12);
            border-radius: 50%;
            content: "";
        }

        .scene-top {
            position: absolute;
            top: 16px;
            left: 16px;
            display: flex;
            gap: 8px;
        }

        .scene-top .badge {
            color: #fff;
            background: rgba(7, 24, 53, .5);
            backdrop-filter: blur(8px);
        }

        .play-mark {
            position: relative;
            display: grid;
            width: 52px;
            height: 52px;
            place-items: center;
            border: 1px solid rgba(255, 255, 255, .45);
            border-radius: 50%;
            color: #fff;
            background: rgba(255, 255, 255, .18);
            backdrop-filter: blur(7px);
        }

        .play-mark::before {
            width: 0;
            height: 0;
            margin-left: 4px;
            border-top: 7px solid transparent;
            border-bottom: 7px solid transparent;
            border-left: 11px solid #fff;
            content: "";
        }

        .content-card-body {
            padding: 22px;
        }

        .content-card-body p {
            min-height: 50px;
            margin-bottom: 18px;
            color: var(--muted);
            font-size: 14px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .card-meta small {
            color: var(--muted);
        }

        .guide-section {
            padding: 70px 0;
            background: #fff;
        }

        .guide-panel {
            display: grid;
            padding: 42px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            grid-template-columns: .8fr 1.2fr;
            gap: 45px;
            background: linear-gradient(135deg, #fff, #f5f9ff);
            box-shadow: var(--shadow-md);
        }

        .guide-panel h2 {
            font-size: clamp(28px, 3.4vw, 40px);
        }

        .guide-panel > div > p {
            color: var(--muted);
        }

        .steps {
            display: grid;
            gap: 14px;
        }

        .step {
            display: grid;
            padding: 18px;
            align-items: center;
            grid-template-columns: 44px 1fr;
            gap: 15px;
            border-radius: 15px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .step-number {
            display: grid;
            width: 44px;
            height: 44px;
            place-items: center;
            border-radius: 13px;
            color: #fff;
            background: var(--primary);
            font-weight: 900;
        }

        .step b {
            display: block;
            color: var(--ink);
        }

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

        .voices-section {
            overflow: hidden;
            background: #f7faff;
        }

        .bubble-wall {
            display: grid;
            grid-template-columns: 1fr 1.15fr .9fr;
            gap: 20px;
        }

        .voice-column {
            display: grid;
            align-content: start;
            gap: 20px;
        }

        .voice-column:nth-child(2) {
            padding-top: 35px;
        }

        .quote-bubble {
            position: relative;
            padding: 25px;
            border: 1px solid var(--border);
            border-radius: 22px 22px 22px 7px;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .quote-bubble::after {
            position: absolute;
            bottom: -9px;
            left: 24px;
            width: 18px;
            height: 18px;
            border-right: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: #fff;
            content: "";
            transform: rotate(45deg);
        }

        .quote-bubble p {
            margin-bottom: 19px;
            color: var(--text);
        }

        .voice-person {
            display: flex;
            align-items: center;
            gap: 11px;
        }

        .avatar {
            display: grid;
            width: 38px;
            height: 38px;
            place-items: center;
            border-radius: 50%;
            color: var(--primary-dark);
            background: var(--primary-light);
            font-size: 13px;
            font-weight: 900;
        }

        .voice-person b {
            display: block;
            color: var(--ink);
            font-size: 14px;
        }

        .voice-person span {
            color: var(--muted);
            font-size: 12px;
        }

        .success-price {
            display: grid;
            margin-top: 56px;
            padding: 30px;
            align-items: center;
            grid-template-columns: 1.25fr .75fr;
            gap: 28px;
            border-radius: 24px;
            color: #dbe9ff;
            background: #142f60;
            box-shadow: var(--shadow-lg);
        }

        .success-price h3 {
            color: #fff;
            font-size: 27px;
        }

        .success-price p {
            margin-bottom: 0;
            color: #c7d6ef;
        }

        .price-box {
            padding: 22px;
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 18px;
            background: rgba(255, 255, 255, .08);
        }

        .price-box strong {
            display: block;
            color: #fff;
            font-size: 30px;
        }

        .price-box small {
            color: #b9cae6;
        }

        .news-section {
            background: #fff;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.45fr .75fr;
            gap: 32px;
        }

        .news-list {
            border-top: 1px solid var(--border);
        }

        .news-item {
            display: grid;
            padding: 24px 5px;
            align-items: start;
            grid-template-columns: 112px 1fr auto;
            gap: 22px;
            border-bottom: 1px solid var(--border);
        }

        .news-item time {
            color: var(--muted);
            font-size: 14px;
        }

        .news-item h3 {
            margin-bottom: 7px;
            font-size: 19px;
        }

        .news-item h3 a {
            color: var(--ink);
        }

        .news-item h3 a:hover {
            color: var(--primary);
        }

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

        .news-arrow {
            display: grid;
            width: 38px;
            height: 38px;
            place-items: center;
            border-radius: 50%;
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 900;
        }

        .news-item:hover .news-arrow {
            color: #fff;
            background: var(--primary);
            transform: translateX(3px);
        }

        .recommend-box {
            position: sticky;
            top: 108px;
            padding: 28px;
            border: 1px solid #bdd1f2;
            border-radius: 22px;
            background: #edf5ff;
        }

        .recommend-box h3 {
            font-size: 24px;
        }

        .recommend-box > p {
            color: var(--muted);
        }

        .recommend-list {
            margin: 22px 0 25px;
            list-style: none;
        }

        .recommend-list li {
            display: flex;
            padding: 13px 0;
            align-items: flex-start;
            gap: 10px;
            border-bottom: 1px solid #d4e1f5;
            color: var(--ink);
            font-weight: 700;
        }

        .recommend-list li::before {
            display: grid;
            width: 22px;
            height: 22px;
            flex: 0 0 22px;
            place-items: center;
            border-radius: 50%;
            color: #fff;
            background: var(--secondary);
            font-size: 12px;
            content: "✓";
        }

        .subscribe-section {
            padding: 88px 0;
            background: #eaf2ff;
        }

        .subscribe-panel {
            position: relative;
            padding: 54px;
            overflow: hidden;
            border-radius: 30px;
            color: #dfeaff;
            background: linear-gradient(125deg, #173b79, #1d5dc4);
            box-shadow: var(--shadow-lg);
        }

        .subscribe-panel::after {
            position: absolute;
            top: -90px;
            right: -60px;
            width: 320px;
            height: 320px;
            border: 54px solid rgba(255, 255, 255, .07);
            border-radius: 50%;
            content: "";
        }

        .subscribe-grid {
            position: relative;
            z-index: 2;
            display: grid;
            align-items: center;
            grid-template-columns: 1fr .95fr;
            gap: 54px;
        }

        .subscribe-copy h2 {
            color: #fff;
        }

        .subscribe-copy p {
            max-width: 580px;
            margin-bottom: 0;
            color: #cbdaf2;
        }

        .subscribe-form {
            padding: 26px;
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 20px;
            background: rgba(255, 255, 255, .1);
            backdrop-filter: blur(10px);
        }

        .input-group-custom {
            display: flex;
            gap: 10px;
        }

        .input-group-custom input {
            height: 52px;
            margin: 0;
            padding: 0 16px;
            border: 1px solid transparent;
            border-radius: 11px;
            color: var(--ink);
            background: #fff;
            box-shadow: none;
        }

        .input-group-custom input:focus {
            border-color: #82b0ff;
            box-shadow: 0 0 0 4px rgba(255, 255, 255, .13);
        }

        .input-group-custom .button {
            min-width: 118px;
            border-radius: 11px;
        }

        .form-note {
            display: block;
            margin-top: 12px;
            color: #bdd0ed;
            font-size: 12px;
        }

        .faq-wrap {
            position: relative;
            z-index: 2;
            margin-top: 44px;
            padding-top: 38px;
            border-top: 1px solid rgba(255, 255, 255, .14);
        }

        .faq-wrap h3 {
            margin-bottom: 20px;
            color: #fff;
            font-size: 25px;
        }

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

        .faq-item {
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 15px;
            background: rgba(255, 255, 255, .08);
        }

        .faq-question {
            display: flex;
            width: 100%;
            padding: 18px;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
            border: 0;
            color: #fff;
            background: transparent;
            font-weight: 800;
            text-align: left;
        }

        .faq-question::after {
            color: #bcd5ff;
            font-size: 20px;
            content: "+";
            transition: transform var(--transition);
        }

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

        .faq-answer {
            display: none;
            padding: 0 18px 18px;
            color: #c9d8ee;
            font-size: 14px;
        }

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

        .faq-answer p {
            margin: 0;
        }

        .site-footer {
            padding: 62px 0 24px;
            color: #aebed8;
            background: #0e2144;
        }

        .footer-main {
            display: grid;
            padding-bottom: 38px;
            grid-template-columns: 1.4fr .55fr .75fr;
            gap: 50px;
        }

        .footer-brand .brand {
            max-width: 430px;
            margin-bottom: 18px;
            color: #fff;
        }

        .footer-brand p {
            max-width: 570px;
            margin-bottom: 0;
            color: #9fb1ce;
        }

        .footer-column h3 {
            margin-bottom: 16px;
            color: #fff;
            font-size: 16px;
        }

        .footer-links {
            margin: 0;
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #aebed8;
        }

        .footer-links a:hover,
        .footer-links a.active {
            color: #fff;
        }

        .footer-status {
            padding: 16px;
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 14px;
            background: rgba(255, 255, 255, .04);
        }

        .status-line {
            display: flex;
            margin-bottom: 7px;
            align-items: center;
            gap: 9px;
            color: #e4edfb;
            font-weight: 800;
        }

        .status-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: #3bd49d;
            box-shadow: 0 0 0 5px rgba(59, 212, 157, .12);
        }

        .footer-status small {
            color: #91a5c5;
        }

        .footer-bottom {
            display: flex;
            padding-top: 23px;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            color: #8599bb;
            font-size: 13px;
        }

        .floating-cta {
            position: fixed;
            z-index: 900;
            right: 22px;
            bottom: 22px;
            display: flex;
            padding: 10px 12px 10px 18px;
            align-items: center;
            gap: 15px;
            border: 1px solid #c7d8f2;
            border-radius: 16px;
            background: rgba(255, 255, 255, .94);
            box-shadow: var(--shadow-md);
            backdrop-filter: blur(12px);
        }

        .floating-cta span {
            color: var(--ink);
            font-size: 14px;
            font-weight: 800;
        }

        .floating-cta .button {
            min-height: 40px;
            padding: 9px 14px;
            font-size: 13px;
        }

        @media (max-width: 1024px) {
            :root {
                --section-space: 78px;
            }

            .brand {
                max-width: 310px;
                font-size: 16px;
            }

            .desktop-navigation {
                gap: 12px;
            }

            .main-menu {
                gap: 2px;
            }

            .nav-actions .secondary-action {
                display: none;
            }

            .story-layout {
                gap: 40px;
            }

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

            .bubble-wall {
                grid-template-columns: 1fr 1fr;
            }

            .voice-column:nth-child(3) {
                display: contents;
            }

            .news-layout {
                grid-template-columns: 1.25fr .75fr;
            }
        }

        @media (max-width: 768px) {
            .site-container {
                width: min(100% - 30px, 1180px);
            }

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

            .brand-text {
                max-width: 230px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }

            .desktop-navigation {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .mobile-panel {
                position: fixed;
                z-index: 999;
                top: 68px;
                right: 0;
                left: 0;
                display: block;
                padding: 18px 15px 24px;
                border-top: 1px solid var(--border);
                background: #fff;
                box-shadow: var(--shadow-md);
                opacity: 0;
                pointer-events: none;
                transform: translateY(-12px);
                transition: opacity var(--transition), transform var(--transition);
            }

            .mobile-panel.open {
                opacity: 1;
                pointer-events: auto;
                transform: translateY(0);
            }

            .mobile-panel .main-menu {
                display: grid;
            }

            .mobile-panel .main-menu a {
                padding: 13px;
            }

            .mobile-actions {
                display: grid;
                margin-top: 15px;
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero {
                min-height: 0;
                padding: 70px 0 55px;
            }

            .burst {
                position: static;
                width: auto;
                height: auto;
                margin: 0 auto 20px;
                padding: 8px 14px;
                border-radius: 999px;
                transform: none;
            }

            .hero h1 {
                font-size: clamp(38px, 11vw, 59px);
            }

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

            .proof-item {
                padding: 16px;
            }

            .proof-item + .proof-item {
                border-top: 1px solid var(--border);
                border-left: 0;
            }

            .story-layout,
            .guide-panel,
            .subscribe-grid {
                grid-template-columns: 1fr;
            }

            .story-visual {
                min-height: 410px;
                padding: 24px;
            }

            .vertical-ribbon {
                min-height: 360px;
            }

            .featured-toolbar {
                display: block;
            }

            .scroll-hint {
                margin-top: 15px;
            }

            .guide-panel {
                padding: 30px;
                gap: 25px;
            }

            .bubble-wall {
                grid-template-columns: 1fr;
            }

            .voice-column:nth-child(2) {
                padding-top: 0;
            }

            .success-price {
                grid-template-columns: 1fr;
            }

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

            .recommend-box {
                position: static;
            }

            .subscribe-panel {
                padding: 38px 28px;
            }

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

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

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

            .floating-cta span {
                display: none;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-space: 64px;
            }

            body {
                font-size: 15px;
            }

            .site-container {
                width: min(100% - 24px, 1180px);
            }

            .brand {
                max-width: calc(100vw - 94px);
            }

            .brand-mark {
                width: 38px;
                height: 38px;
                flex-basis: 38px;
            }

            .hero {
                padding-top: 50px;
            }

            .promo-label {
                align-items: flex-start;
                border-radius: 13px;
                text-align: left;
            }

            .hero h1 {
                font-size: 39px;
            }

            .hero-copy {
                font-size: 16px;
            }

            .hero-actions {
                display: grid;
            }

            .hero-actions .button {
                width: 100%;
            }

            .story-points,
            .feature-strip {
                grid-template-columns: 1fr;
            }

            .story-visual {
                min-height: 360px;
                padding: 16px;
            }

            .vertical-ribbon {
                min-height: 328px;
                padding: 22px;
            }

            .content-rail {
                grid-auto-columns: 85vw;
            }

            .guide-panel {
                padding: 24px 18px;
            }

            .success-price {
                padding: 23px;
            }

            .news-item {
                grid-template-columns: 1fr auto;
                gap: 12px;
            }

            .news-item time {
                grid-column: 1 / -1;
            }

            .subscribe-panel {
                padding: 30px 18px;
                border-radius: 22px;
            }

            .input-group-custom {
                display: grid;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .footer-bottom {
                display: block;
            }

            .footer-bottom span {
                display: block;
                margin-top: 7px;
            }

            .floating-cta {
                right: 12px;
                bottom: 12px;
                left: 12px;
                justify-content: center;
            }

            .floating-cta .button {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1747b8;
  --primary-light: #eaf2ff;
  --secondary: #08a6a6;
  --accent: #ff7a45;
  --accent-dark: #d94e1f;
  --ink: #12213f;
  --text: #35425d;
  --muted: #6f7d96;
  --background: #f6f9ff;
  --surface: #ffffff;
  --surface-soft: #eef5ff;
  --border: #dbe5f4;
  --success: #13865f;
  --warning: #f2a527;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow-sm: 0 8px 22px rgba(33, 70, 130, .08);
  --shadow-md: 0 18px 45px rgba(33, 70, 130, .13);
  --shadow-lg: 0 28px 70px rgba(27, 64, 126, .18);
  --transition: 180ms ease;
  --section-space: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--background);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

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

ul,
ol {
  margin-top: 0;
}

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

.section {
  position: relative;
  padding: var(--section-space) 0;
}

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

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

.section-heading {
  max-width: 740px;
  margin-bottom: 42px;
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading h2 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.03em;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 15px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .08em;
}

.eyebrow::before {
  width: 24px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
  content: "";
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 4px 11px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--primary-light);
  font-size: 12px;
  font-weight: 800;
}

.badge-hot {
  color: #9d3517;
  background: #fff0e9;
}

.badge-green {
  color: #08715b;
  background: #e4f9f2;
}

.button,
.button.primary-action,
.button.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  margin: 0;
  padding: 13px 23px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 800;
  line-height: 1.2;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.button.primary-action {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 12px 25px rgba(37, 99, 235, .24);
}

.button.primary-action:hover,
.button.primary-action:focus {
  color: #fff;
  background: var(--primary-dark);
  box-shadow: 0 16px 30px rgba(37, 99, 235, .32);
  transform: translateY(-2px);
}

.button.secondary-action {
  color: var(--ink);
  border-color: var(--border);
  background: #fff;
}

.button.secondary-action:hover,
.button.secondary-action:focus {
  color: var(--primary);
  border-color: #9bbaf0;
  background: var(--primary-light);
  transform: translateY(-2px);
}

.button.accent-action {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 14px 30px rgba(255, 122, 69, .3);
}

.button.accent-action:hover,
.button.accent-action:focus {
  color: #fff;
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .3);
  outline-offset: 3px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 800;
}

.text-link::after {
  content: "→";
  transition: transform var(--transition);
}

.text-link:hover::after {
  transform: translateX(4px);
}

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  border-bottom: 1px solid rgba(219, 229, 244, .9);
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 8px 30px rgba(34, 69, 126, .06);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: flex;
  max-width: 410px;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.3;
}

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

.brand-mark {
  position: relative;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  overflow: hidden;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--primary), #4b8aff);
  box-shadow: 0 10px 22px rgba(37, 99, 235, .24);
}

.brand-mark::before {
  position: absolute;
  top: 11px;
  left: 15px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 15px solid #fff;
  content: "";
}

.brand-mark::after {
  position: absolute;
  right: -7px;
  bottom: -8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.brand-text {
  display: block;
}

.desktop-navigation {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-menu {
  display: flex;
  align-items: center;
  gap: 5px;
  margin: 0;
  list-style: none;
}

.main-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--text);
  font-weight: 700;
}

.main-menu a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-menu a.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .08);
}

.nav-actions,
.mobile-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-actions .button {
  min-height: 44px;
  padding: 11px 17px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}

.menu-toggle span {
  display: block;
  width: 23px;
  height: 2px;
  margin: 5px auto;
  border-radius: 3px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-panel {
  display: none;
  padding: 0 20px 22px;
  border-top: 1px solid var(--border);
  background: #fff;
}

.mobile-panel.is-open {
  display: block;
}

.mobile-panel .main-menu {
  display: grid;
  padding: 15px 0;
}

.mobile-panel .main-menu a {
  padding: 13px 15px;
}

.mobile-actions .button {
  flex: 1;
}

.category-hero {
  position: relative;
  overflow: hidden;
  padding: 74px 0 84px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 86% 18%, rgba(8, 166, 166, .13), transparent 25%),
    radial-gradient(circle at 12% 15%, rgba(37, 99, 235, .12), transparent 30%),
    linear-gradient(180deg, #fff 0%, #f4f8ff 100%);
}

.category-hero::before {
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(37, 99, 235, .12);
  border-radius: 50%;
  content: "";
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumbs a {
  color: var(--muted);
}

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

.breadcrumbs span[aria-hidden="true"] {
  color: #a9b5c8;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-right: 34px;
}

.hero-copy h1 {
  max-width: 760px;
  margin: 12px 0 22px;
  color: var(--ink);
  font-size: clamp(39px, 5.3vw, 66px);
  font-weight: 950;
  line-height: 1.08;
  letter-spacing: -.045em;
}

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

.hero-copy > p {
  max-width: 700px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-bottom: 30px;
}

.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}

.hero-notes span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-notes span::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(19, 134, 95, .1);
  content: "";
}

.hero-board {
  position: relative;
  min-height: 500px;
  padding: 25px;
  overflow: hidden;
  border: 1px solid rgba(181, 204, 239, .85);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow-lg);
}

.hero-board::after {
  position: absolute;
  right: -52px;
  bottom: -52px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 122, 69, .09);
  content: "";
}

.board-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.board-head strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 20px;
}

.board-head small {
  color: var(--muted);
}

.live-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--success);
  background: #e6f8f1;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.live-label::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  content: "";
}

.zone-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 21px 0;
}

.zone-tab {
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  background: #f9fbff;
  font-weight: 800;
}

.zone-tab.active {
  color: #fff;
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: 0 10px 24px rgba(37, 99, 235, .22);
}

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

.selection-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: #fff;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.selection-item:hover {
  border-color: #a9c3ee;
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.selection-cover {
  display: grid;
  width: 58px;
  height: 54px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(145deg, var(--secondary), #53c7c7);
  font-size: 12px;
  font-weight: 900;
}

.selection-item:nth-child(2) .selection-cover {
  background: linear-gradient(145deg, var(--accent), #ffad75);
}

.selection-item:nth-child(3) .selection-cover {
  background: linear-gradient(145deg, var(--primary), #73a2ff);
}

.selection-info strong {
  display: block;
  overflow: hidden;
  color: var(--ink);
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.selection-info small {
  color: var(--muted);
}

.selection-quality {
  padding: 5px 9px;
  border-radius: 8px;
  color: var(--primary-dark);
  background: var(--primary-light);
  font-size: 11px;
  font-weight: 900;
}

.quick-bar {
  position: relative;
  z-index: 3;
  margin-top: -34px;
}

.quick-bar-inner {
  display: grid;
  grid-template-columns: 1.25fr repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-md);
}

.quick-intro,
.quick-stat {
  padding: 25px 28px;
}

.quick-intro {
  color: #fff;
  background: var(--ink);
}

.quick-intro strong {
  display: block;
  margin-bottom: 3px;
  font-size: 18px;
}

.quick-intro span {
  color: #b9c7df;
  font-size: 14px;
}

.quick-stat {
  border-right: 1px solid var(--border);
}

.quick-stat:last-child {
  border-right: 0;
}

.quick-stat strong {
  display: block;
  color: var(--primary);
  font-size: 22px;
  line-height: 1.2;
}

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

.feature-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 58px;
  align-items: start;
}

.feature-sticky {
  position: sticky;
  top: 116px;
}

.feature-sticky h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: clamp(31px, 4vw, 45px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.03em;
}

.feature-sticky p {
  margin-bottom: 25px;
  color: var(--muted);
  font-size: 17px;
}

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

.feature-card {
  position: relative;
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 21px;
  padding: 28px;
  overflow: hidden;
  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);
}

.feature-card:hover {
  border-color: #adc6ef;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card::after {
  position: absolute;
  right: -18px;
  bottom: -30px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--primary-light);
  content: "";
}

.feature-icon {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  border-radius: 18px;
  color: var(--primary);
  background: var(--primary-light);
  font-size: 24px;
  font-weight: 900;
}

.feature-card:nth-child(2) .feature-icon {
  color: #087a7a;
  background: #ddf8f8;
}

.feature-card:nth-child(3) .feature-icon {
  color: #b34720;
  background: #fff0e9;
}

.feature-card:nth-child(4) .feature-icon {
  color: var(--success);
  background: #e4f9f2;
}

.feature-content {
  position: relative;
  z-index: 2;
}

.feature-content h3 {
  margin: 0 0 9px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 900;
}

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

.inline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.inline-tags span {
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #fbfdff;
  font-size: 12px;
  font-weight: 700;
}

.scene-showcase {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-md);
}

.scene-visual {
  position: relative;
  min-height: 560px;
  padding: 46px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 20% 20%, rgba(73, 139, 255, .45), transparent 26%),
    linear-gradient(145deg, #112449, #183e82 63%, #166f8c);
}

.scene-visual::before,
.scene-visual::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 50%;
  content: "";
}

.scene-visual::before {
  right: -90px;
  bottom: -60px;
  width: 310px;
  height: 310px;
}

.scene-visual::after {
  right: 70px;
  bottom: 80px;
  width: 130px;
  height: 130px;
}

.scene-visual .eyebrow {
  color: #b9d1ff;
}

.scene-visual h2 {
  position: relative;
  z-index: 2;
  max-width: 490px;
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(32px, 4.2vw, 48px);
  font-weight: 900;
  line-height: 1.17;
}

.scene-visual > p {
  position: relative;
  z-index: 2;
  max-width: 500px;
  color: #c6d4eb;
  font-size: 17px;
}

.device-panel {
  position: absolute;
  right: 44px;
  bottom: 44px;
  left: 44px;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
}

.device-card {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 17px;
  background: rgba(255, 255, 255, .1);
  backdrop-filter: blur(12px);
}

.device-card strong {
  display: block;
  margin-bottom: 5px;
  color: #fff;
}

.device-card span {
  color: #c7d5ec;
  font-size: 13px;
}

.scene-list {
  padding: 42px;
}

.scene-list h3 {
  margin: 0 0 25px;
  color: var(--ink);
  font-size: 25px;
  font-weight: 900;
}

.scene-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

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

.scene-number {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 13px;
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 900;
}

.scene-item h4 {
  margin: 0 0 5px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
}

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

.process-wrap {
  position: relative;
}

.process-line {
  position: absolute;
  top: 40px;
  right: 12%;
  left: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.process-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  position: relative;
  padding-top: 5px;
  text-align: center;
}

.step-index {
  position: relative;
  z-index: 2;
  display: grid;
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  place-items: center;
  border: 8px solid #fff;
  border-radius: 50%;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 9px 22px rgba(37, 99, 235, .25);
  font-size: 19px;
  font-weight: 900;
}

.process-step:nth-child(2) .step-index {
  background: #347fd6;
}

.process-step:nth-child(3) .step-index {
  background: var(--secondary);
}

.process-step:nth-child(4) .step-index {
  background: var(--accent);
}

.process-step h3 {
  margin: 0 0 7px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

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

.proof-section {
  color: #dbe7fa;
  background: var(--ink);
}

.proof-section .section-heading h2 {
  color: #fff;
}

.proof-section .section-heading p {
  color: #aebdd5;
}

.proof-layout {
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: 25px;
}

.proof-main,
.proof-side {
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .055);
}

.proof-main {
  padding: 37px;
}

.proof-quote {
  margin: 0 0 30px;
  color: #fff;
  font-size: clamp(22px, 3vw, 31px);
  font-weight: 800;
  line-height: 1.48;
}

.proof-quote::before {
  display: block;
  margin-bottom: 8px;
  color: #6d9df4;
  content: "“";
  font-family: Georgia, serif;
  font-size: 65px;
  line-height: .7;
}

.proof-meta {
  display: flex;
  align-items: center;
  gap: 13px;
  color: #aebdd5;
}

.proof-avatar {
  display: grid;
  width: 45px;
  height: 45px;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: var(--primary);
  font-weight: 900;
}

.proof-side {
  display: grid;
  padding: 14px 30px;
}

.proof-point {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: 15px;
  padding: 19px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.proof-point:last-child {
  border-bottom: 0;
}

.proof-check {
  display: grid;
  width: 45px;
  height: 45px;
  place-items: center;
  border-radius: 14px;
  color: #62dbc4;
  background: rgba(8, 166, 166, .16);
  font-weight: 900;
}

.proof-point strong {
  display: block;
  color: #fff;
}

.proof-point span {
  color: #aebdd5;
  font-size: 13px;
}

.pricing-layout {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 45px;
  align-items: center;
}

.pricing-copy h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.18;
}

.pricing-copy p {
  color: var(--muted);
  font-size: 17px;
}

.safe-note {
  display: flex;
  gap: 13px;
  margin-top: 25px;
  padding: 17px;
  border: 1px solid #bce4d6;
  border-radius: 14px;
  color: #146449;
  background: #edfbf6;
  font-size: 14px;
}

.safe-note strong {
  flex: 0 0 auto;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.price-card {
  position: relative;
  padding: 31px;
  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);
}

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

.price-card.featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-md);
}

.price-card .badge {
  position: absolute;
  top: 18px;
  right: 18px;
}

.price-card h3 {
  margin: 0 0 7px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 900;
}

.price-card > p {
  min-height: 54px;
  color: var(--muted);
  font-size: 14px;
}

.price {
  margin: 20px 0;
  color: var(--ink);
  font-size: 38px;
  font-weight: 950;
  line-height: 1;
}

.price small {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.price-list {
  display: grid;
  gap: 10px;
  margin: 0 0 25px;
  padding: 0;
  list-style: none;
}

.price-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
  font-size: 14px;
}

.price-list li::before {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--success);
  content: "✓";
  font-weight: 900;
}

.price-card .button {
  width: 100%;
}

.faq-layout {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 55px;
}

.faq-intro h2 {
  margin: 0 0 17px;
  color: var(--ink);
  font-size: clamp(31px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.2;
}

.faq-intro p {
  color: var(--muted);
}

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

.faq-item {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  position: relative;
  padding: 21px 54px 21px 22px;
  color: var(--ink);
  font-weight: 900;
  list-style: none;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 19px;
  right: 20px;
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  border-radius: 9px;
  color: var(--primary);
  background: var(--primary-light);
  content: "+";
  font-size: 20px;
  transition: transform var(--transition);
}

.faq-item[open] summary {
  color: var(--primary-dark);
  background: #fbfdff;
}

.faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 22px 21px;
  color: var(--muted);
}

.faq-answer p {
  margin: 0;
}

.update-cta {
  padding: 0 0 var(--section-space);
}

.cta-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr .85fr;
  gap: 42px;
  align-items: center;
  padding: 52px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  color: #fff;
  background: linear-gradient(130deg, var(--primary-dark), var(--primary) 58%, #3a82f3);
  box-shadow: var(--shadow-lg);
}

.cta-panel::before {
  position: absolute;
  top: -130px;
  right: -80px;
  width: 330px;
  height: 330px;
  border: 55px solid rgba(255, 255, 255, .08);
  border-radius: 50%;
  content: "";
}

.cta-content,
.subscribe-box {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  margin: 0 0 14px;
  color: #fff;
  font-size: clamp(31px, 4vw, 45px);
  font-weight: 900;
  line-height: 1.18;
}

.cta-content p {
  margin: 0;
  color: #dbe8ff;
  font-size: 17px;
}

.subscribe-box {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 18px;
  background: rgba(255, 255, 255, .12);
  backdrop-filter: blur(12px);
}

.subscribe-box label {
  display: block;
  margin-bottom: 9px;
  color: #fff;
  font-weight: 800;
}

.subscribe-row {
  display: flex;
  gap: 9px;
}

.subscribe-row input {
  min-width: 0;
  height: 52px;
  margin: 0;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 11px;
  color: var(--ink);
  background: #fff;
  box-shadow: none;
}

.subscribe-row input::placeholder {
  color: #8793a8;
}

.subscribe-row .button {
  flex: 0 0 auto;
}

.form-note {
  display: block;
  margin-top: 10px;
  color: #d6e4fc;
  font-size: 12px;
}

.form-message {
  min-height: 24px;
  margin: 8px 0 0;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.site-footer {
  padding: 66px 0 25px;
  color: #aebbd1;
  background: #0d1a32;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr .65fr .75fr;
  gap: 65px;
  padding-bottom: 43px;
}

.footer-brand .brand {
  max-width: 430px;
  margin-bottom: 18px;
  color: #fff;
}

.footer-brand p {
  max-width: 540px;
  margin: 0;
  color: #aebbd1;
}

.footer-column h3 {
  margin: 2px 0 17px;
  color: #fff;
  font-size: 16px;
  font-weight: 900;
}

.footer-links {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: #aebbd1;
}

.footer-links a:hover,
.footer-links a.active {
  color: #fff;
}

.footer-status {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 13px;
  background: rgba(255, 255, 255, .04);
}

.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 5px;
  color: #e7eef9;
  font-weight: 800;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #31c48d;
  box-shadow: 0 0 0 5px rgba(49, 196, 141, .12);
}

.footer-status small {
  color: #8f9db4;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: #8290a7;
  font-size: 13px;
}

@media (max-width: 1024px) {
  :root {
    --section-space: 78px;
  }

  .brand {
    max-width: 300px;
    font-size: 15px;
  }

  .desktop-navigation {
    gap: 10px;
  }

  .main-menu a {
    padding: 9px 10px;
    font-size: 14px;
  }

  .nav-actions .button {
    padding: 10px 13px;
  }

  .category-hero {
    padding-top: 58px;
  }

  .hero-copy {
    padding-right: 10px;
  }

  .hero-board {
    min-height: 470px;
  }

  .feature-layout {
    gap: 35px;
  }

  .scene-visual {
    padding: 36px;
  }

  .device-panel {
    right: 34px;
    bottom: 34px;
    left: 34px;
  }

  .scene-list {
    padding: 32px;
  }

  .pricing-layout,
  .faq-layout {
    gap: 32px;
  }

  .price-card {
    padding: 25px;
  }

  .footer-main {
    gap: 35px;
  }
}

@media (max-width: 860px) {
  .desktop-navigation {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .category-hero .grid-x > .cell {
    width: 100%;
  }

  .hero-copy {
    margin-bottom: 44px;
  }

  .hero-board {
    min-height: auto;
  }

  .quick-bar {
    margin-top: -22px;
  }

  .quick-bar-inner {
    grid-template-columns: repeat(3, 1fr);
  }

  .quick-intro {
    grid-column: 1 / -1;
  }

  .feature-layout,
  .scene-showcase,
  .proof-layout,
  .pricing-layout,
  .faq-layout,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .feature-sticky {
    position: static;
  }

  .scene-visual {
    min-height: 500px;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 35px 24px;
  }

  .process-line {
    display: none;
  }

  .pricing-copy {
    max-width: 700px;
  }

  .footer-main {
    grid-template-columns: 1.3fr .7fr;
  }

  .footer-column:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  :root {
    --section-space: 64px;
  }

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

  .nav-wrap {
    min-height: 70px;
  }

  .brand {
    max-width: calc(100% - 60px);
    gap: 9px;
    font-size: 13px;
  }

  .brand-mark {
    flex-basis: 37px;
    width: 37px;
    height: 37px;
    border-radius: 12px;
  }

  .brand-mark::before {
    top: 10px;
    left: 14px;
    border-top-width: 8px;
    border-bottom-width: 8px;
    border-left-width: 12px;
  }

  .mobile-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .category-hero {
    padding: 38px 0 61px;
  }

  .breadcrumbs {
    margin-bottom: 22px;
  }

  .hero-copy h1 {
    font-size: clamp(34px, 11vw, 48px);
  }

  .hero-copy > p {
    font-size: 16px;
  }

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

  .hero-actions .button {
    width: 100%;
  }

  .hero-notes {
    display: grid;
    gap: 11px;
  }

  .hero-board {
    padding: 18px;
    border-radius: 21px;
  }

  .board-head {
    display: block;
  }

  .live-label {
    margin-top: 12px;
  }

  .selection-item {
    grid-template-columns: 50px minmax(0, 1fr);
  }

  .selection-cover {
    width: 50px;
    height: 50px;
  }

  .selection-quality {
    display: none;
  }

  .quick-bar-inner {
    grid-template-columns: 1fr;
  }

  .quick-intro {
    grid-column: auto;
  }

  .quick-stat {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .quick-stat:last-child {
    border-bottom: 0;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .feature-card {
    grid-template-columns: 1fr;
    padding: 23px;
  }

  .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 15px;
  }

  .scene-visual {
    min-height: 600px;
    padding: 28px 24px;
  }

  .device-panel {
    right: 24px;
    bottom: 25px;
    left: 24px;
    grid-template-columns: 1fr;
  }

  .scene-list {
    padding: 27px 22px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .process-step {
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr);
    column-gap: 16px;
    text-align: left;
  }

  .step-index {
    grid-row: 1 / span 2;
    width: 60px;
    height: 60px;
    margin: 0;
  }

  .process-step h3 {
    align-self: end;
  }

  .proof-main {
    padding: 27px 22px;
  }

  .proof-side {
    padding: 10px 20px;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .price-card > p {
    min-height: auto;
  }

  .cta-panel {
    padding: 33px 22px;
  }

  .subscribe-row {
    display: grid;
  }

  .subscribe-row .button {
    width: 100%;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 33px;
  }

  .footer-column:last-child {
    grid-column: auto;
  }

  .footer-bottom {
    display: grid;
  }
}