/* roulang page: index */
:root {
            --primary-900: #1a1140;
            --primary-800: #251655;
            --primary-700: #33206e;
            --primary-600: #452d8a;
            --primary-500: #5b3aa6;
            --accent-500: #f5b841;
            --accent-400: #ffc95c;
            --accent-300: #ffda85;
            --accent-600: #d99a26;
            --bg-light: #f7f5fb;
            --bg-white: #ffffff;
            --bg-dark: #150e33;
            --bg-dark-2: #1e1542;
            --text-strong: #1c1a2e;
            --text-body: #44415a;
            --text-weak: #6f6b86;
            --text-inverse: #f2effa;
            --text-inverse-weak: #c4bdd8;
            --border-light: #e8e3f2;
            --border-mid: #d3cbe6;
            --success: #2f9e6e;
            --danger: #d95555;
            --info: #3f7fc1;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 3px rgba(20, 12, 50, 0.07);
            --shadow-sm: 0 4px 14px rgba(20, 12, 50, 0.08);
            --shadow-md: 0 12px 32px rgba(20, 12, 50, 0.12);
            --shadow-lg: 0 24px 60px rgba(20, 12, 50, 0.18);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
            --max-width: 1180px;
            --header-height: 68px;
            --bottom-bar-height: 72px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary-600);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary-800);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(91, 58, 166, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: 1rem;
        }

        input, textarea, select {
            font-family: inherit;
            font-size: 1rem;
            color: var(--text-strong);
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-700) 55%, var(--primary-600) 100%);
            box-shadow: 0 2px 16px rgba(20, 12, 50, 0.22);
            min-height: var(--header-height);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .brand:hover {
            color: #fff;
            opacity: 0.88;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-500), #f08a3c);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            color: var(--primary-900);
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: flex-end;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 30px;
            color: var(--text-inverse-weak);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
        }

        .main-nav a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.18);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 30px;
            background: var(--accent-500);
            color: var(--primary-900);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--accent-400);
            color: var(--primary-900);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 184, 65, 0.35);
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
            margin-left: 6px;
        }

        .nav-search input {
            width: 180px;
            padding: 9px 16px 9px 38px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.88rem;
            transition: width var(--transition-base), background var(--transition-fast), border var(--transition-fast);
        }

        .nav-search input::placeholder {
            color: var(--text-inverse-weak);
        }

        .nav-search input:focus {
            width: 230px;
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.45);
            outline: none;
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            color: var(--text-inverse-weak);
            font-size: 0.85rem;
            pointer-events: none;
        }

        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            color: #fff;
            font-size: 1.35rem;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(140deg, var(--bg-dark) 0%, var(--bg-dark-2) 40%, var(--primary-800) 100%);
            overflow: hidden;
            border-radius: 0 0 var(--radius-xl) var(--radius-xl);
            margin-bottom: 0;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.32;
            z-index: 1;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(21, 14, 51, 0.75) 0%, rgba(21, 14, 51, 0.35) 50%, rgba(21, 14, 51, 0.72) 100%);
        }

        .hero-pattern {
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image: radial-gradient(circle at 20% 70%, rgba(245, 184, 65, 0.14) 0%, transparent 45%),
                              radial-gradient(circle at 80% 30%, rgba(91, 58, 166, 0.4) 0%, transparent 50%),
                              radial-gradient(circle at 60% 80%, rgba(47, 158, 110, 0.12) 0%, transparent 40%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
            padding: 72px 0;
            width: 100%;
        }

        .hero-content {
            color: var(--text-inverse);
        }

        .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 0.82rem;
            color: var(--text-inverse-weak);
            letter-spacing: 0.5px;
            backdrop-filter: blur(6px);
        }

        .hero-tag i {
            color: var(--accent-400);
            font-size: 0.72rem;
        }

        .hero h1 {
            font-size: 2.65rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 1px;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero h1 .highlight {
            color: var(--accent-400);
            position: relative;
        }

        .hero-desc {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text-inverse-weak);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 30px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-num {
            font-size: 1.55rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .hero-stat-num span {
            color: var(--accent-400);
            font-size: 0.95rem;
            font-weight: 600;
            margin-left: 2px;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-inverse-weak);
            margin-top: 2px;
        }

        .hero-btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.98rem;
            letter-spacing: 0.3px;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
            text-align: center;
        }

        .btn i {
            font-size: 0.92rem;
        }

        .btn-primary {
            background: var(--accent-500);
            color: var(--primary-900);
        }

        .btn-primary:hover {
            background: var(--accent-400);
            color: var(--primary-900);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 184, 65, 0.4);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
        }

        .btn-gold-outline {
            background: transparent;
            color: var(--accent-400);
            border: 2px solid var(--accent-500);
        }

        .btn-gold-outline:hover {
            background: var(--accent-500);
            color: var(--primary-900);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(245, 184, 65, 0.35);
        }

        .btn-lg {
            padding: 16px 34px;
            font-size: 1.05rem;
            border-radius: 34px;
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 0.88rem;
            border-radius: 24px;
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            backdrop-filter: blur(14px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
        }

        .panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 10px;
            flex-wrap: wrap;
        }

        .panel-title {
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
        }

        .panel-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 30px;
            background: rgba(245, 184, 65, 0.18);
            color: var(--accent-300);
            font-size: 0.78rem;
            font-weight: 600;
        }

        .panel-badge i {
            font-size: 0.65rem;
        }

        .group-progress {
            margin-bottom: 18px;
        }

        .group-progress-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-inverse-weak);
            font-size: 0.88rem;
            margin-bottom: 8px;
        }

        .group-progress-label strong {
            color: #fff;
            font-weight: 700;
        }

        .progress-track {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-500), var(--accent-400));
            border-radius: 10px;
            transition: width var(--transition-slow);
        }

        .group-info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 22px;
        }

        .group-info-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-inverse-weak);
            font-size: 0.9rem;
        }

        .group-info-item i {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-400);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .group-info-item strong {
            color: #fff;
            font-weight: 600;
        }

        .panel-btn-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .panel-btn-row .btn {
            flex: 1;
            min-width: 130px;
        }

        /* ---------- Section base ---------- */
        .section {
            padding: 72px 0;
        }

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

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse-weak);
            border-radius: var(--radius-xl);
            margin: 0 16px;
            padding: 72px 24px;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 30px;
            background: rgba(91, 58, 166, 0.08);
            color: var(--primary-600);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-dark .section-tag {
            background: rgba(245, 184, 65, 0.15);
            color: var(--accent-300);
        }

        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-dark .section-header p {
            color: var(--text-inverse-weak);
        }

        /* ---------- Selling points (三连) ---------- */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .selling-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

        .selling-card:hover::before {
            opacity: 1;
        }

        .selling-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(91, 58, 166, 0.1), rgba(245, 184, 65, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary-600);
            margin-bottom: 18px;
        }

        .selling-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .selling-card p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ---------- Params overview ---------- */
        .params-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .params-list {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            overflow: hidden;
        }

        .params-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 22px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.92rem;
            gap: 16px;
            transition: background var(--transition-fast);
        }

        .params-row:last-child {
            border-bottom: none;
        }

        .params-row:hover {
            background: rgba(91, 58, 166, 0.03);
        }

        .params-key {
            color: var(--text-weak);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .params-key i {
            color: var(--primary-500);
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }

        .params-value {
            color: var(--text-strong);
            font-weight: 600;
            text-align: right;
        }

        .params-value .accent-num {
            color: var(--primary-600);
            font-weight: 800;
            font-size: 1.05rem;
        }

        .params-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .params-side-box {
            background: linear-gradient(135deg, var(--bg-dark-2), var(--primary-800));
            border-radius: var(--radius-md);
            padding: 26px 24px;
            color: var(--text-inverse-weak);
        }

        .params-side-box h3 {
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .params-side-box p {
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .params-side-box .mini-stat-row {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .mini-stat {
            display: flex;
            flex-direction: column;
        }

        .mini-stat-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-400);
        }

        .mini-stat-label {
            font-size: 0.78rem;
            color: var(--text-inverse-weak);
        }

        /* ---------- Scene demo ---------- */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 3 / 4;
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .scene-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .scene-card:hover img {
            transform: scale(1.06);
        }

        .scene-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(21, 14, 51, 0.05) 30%, rgba(21, 14, 51, 0.82) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
            color: #fff;
        }

        .scene-overlay h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 4px;
            letter-spacing: 0.3px;
        }

        .scene-overlay p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.5;
        }

        /* ---------- Social proof ---------- */
        .proof-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .proof-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .proof-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .proof-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-600);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .proof-num span {
            font-size: 0.95rem;
            color: var(--accent-600);
            font-weight: 600;
        }

        .proof-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* ---------- News / Info list ---------- */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 28px;
        }

        .news-main-list {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 12px 8px;
            box-shadow: var(--shadow-xs);
        }

        .news-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 14px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            border-bottom: 1px solid var(--border-light);
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-list-item:hover {
            background: rgba(91, 58, 166, 0.04);
        }

        .news-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(91, 58, 166, 0.07);
            color: var(--primary-600);
            flex-shrink: 0;
        }

        .news-date .day {
            font-size: 1.2rem;
            font-weight: 800;
            line-height: 1.1;
        }

        .news-date .mon {
            font-size: 0.72rem;
            font-weight: 500;
        }

        .news-item-content {
            flex: 1;
            min-width: 0;
        }

        .news-item-content a {
            color: var(--text-strong);
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.5;
            display: block;
            transition: color var(--transition-fast);
        }

        .news-item-content a:hover {
            color: var(--primary-600);
        }

        .news-item-meta {
            font-size: 0.78rem;
            color: var(--text-weak);
            margin-top: 4px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .news-item-meta i {
            margin-right: 3px;
            font-size: 0.72rem;
        }

        .news-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-side-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 20px;
            box-shadow: var(--shadow-xs);
            display: flex;
            gap: 14px;
            align-items: center;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .news-side-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }

        .news-side-card img {
            width: 72px;
            height: 72px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-side-info h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
        }

        .news-side-info p {
            font-size: 0.78rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ---------- User journey ---------- */
        .journey-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .journey-step {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            position: relative;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            cursor: pointer;
        }

        .journey-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .journey-step-num {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
            color: #fff;
            font-weight: 800;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

        .journey-step h3 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .journey-step p {
            font-size: 0.82rem;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .journey-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--border-mid);
            font-size: 1.2rem;
        }

        /* ---------- Capability matrix ---------- */
        .cap-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .cap-cell {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            padding: 18px 14px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: background var(--transition-fast), border var(--transition-fast), transform var(--transition-fast);
        }

        .cap-cell:hover {
            background: rgba(91, 58, 166, 0.04);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }

        .cap-cell i {
            font-size: 1.4rem;
            color: var(--primary-500);
            margin-bottom: 8px;
        }

        .cap-cell h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-strong);
        }

        .cap-cell p {
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-top: 4px;
            line-height: 1.4;
        }

        /* ---------- Resource downloads ---------- */
        .res-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .res-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .res-card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(91, 58, 166, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--primary-600);
            margin-bottom: 14px;
        }

        .res-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .res-card p {
            font-size: 0.82rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .res-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-600);
            transition: color var(--transition-fast);
        }

        .res-link:hover {
            color: var(--primary-800);
        }

        .res-link i {
            font-size: 0.7rem;
        }

        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border var(--transition-fast), box-shadow var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-mid);
            box-shadow: var(--shadow-xs);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-strong);
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(91, 58, 166, 0.03);
        }

        .faq-question i {
            color: var(--primary-500);
            font-size: 0.9rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.8;
            display: none;
        }

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

        /* ---------- Form section ---------- */
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: start;
        }

        .form-info {
            color: var(--text-inverse-weak);
        }

        .form-info h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .form-info p {
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .form-info .info-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .form-info .info-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
        }

        .form-info .info-points i {
            color: var(--accent-400);
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            box-shadow: var(--shadow-lg);
        }

        .form-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .form-card .form-sub {
            font-size: 0.88rem;
            color: var(--text-weak);
            margin-bottom: 22px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border-light);
            background: var(--bg-light);
            transition: border var(--transition-fast), box-shadow var(--transition-fast);
            font-size: 0.92rem;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary-500);
            box-shadow: 0 0 0 3px rgba(91, 58, 166, 0.12);
            outline: none;
            background: #fff;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-privacy {
            font-size: 0.78rem;
            color: var(--text-weak);
            margin-bottom: 18px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
        }

        .form-privacy i {
            color: var(--primary-500);
            font-size: 0.8rem;
            margin-top: 3px;
        }

        .form-submit-btn {
            width: 100%;
            padding: 15px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.5px;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(91, 58, 166, 0.4);
        }

        /* ---------- CTA ---------- */
        .cta-banner {
            background: linear-gradient(135deg, var(--accent-500), #f08a3c 60%, var(--primary-600));
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.12);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: 10%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .cta-text {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 240px;
        }

        .cta-text h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--primary-900);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 0.95rem;
            color: rgba(26, 17, 64, 0.75);
            line-height: 1.7;
        }

        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-dark {
            background: var(--primary-900);
            color: #fff;
        }

        .btn-dark:hover {
            background: var(--primary-800);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(26, 17, 64, 0.4);
        }

        .btn-white-outline {
            background: transparent;
            color: var(--primary-900);
            border: 2px solid rgba(26, 17, 64, 0.4);
        }

        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.25);
            color: var(--primary-900);
            border-color: var(--primary-900);
            transform: translateY(-2px);
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-inverse-weak);
            padding: 56px 0 32px;
            margin-top: 40px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col a {
            color: var(--text-inverse-weak);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-400);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 0.82rem;
        }

        .footer-bottom .domain {
            color: rgba(255, 255, 255, 0.45);
        }

        /* ---------- Bottom fixed bar ---------- */
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 900;
            background: rgba(21, 14, 51, 0.94);
            backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 10px 0;
            min-height: var(--bottom-bar-height);
            display: flex;
            align-items: center;
            box-shadow: 0 -6px 28px rgba(20, 12, 50, 0.25);
        }

        .bottom-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bottom-bar-text {
            color: var(--text-inverse-weak);
            font-size: 0.9rem;
        }

        .bottom-bar-text strong {
            color: #fff;
            font-weight: 700;
        }

        .bottom-bar-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .bottom-bar .btn {
            padding: 10px 20px;
            font-size: 0.88rem;
            border-radius: 24px;
        }

        body.has-bottom-bar {
            padding-bottom: calc(var(--bottom-bar-height) + 20px);
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
                padding: 48px 0;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .selling-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cap-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .res-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .params-wrap {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav ul {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav.mobile-open ul {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--primary-900);
                padding: 16px 20px;
                border-radius: 0 0 16px 16px;
                box-shadow: var(--shadow-lg);
                gap: 4px;
            }
            .main-nav.mobile-open ul a {
                display: block;
                padding: 12px 16px;
                border-radius: 8px;
            }
            .hero {
                min-height: auto;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .hero h1 {
                font-size: 1.75rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-dark {
                margin: 0 8px;
                padding: 48px 16px;
                border-radius: var(--radius-lg);
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .proof-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .journey-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .journey-arrow {
                display: none;
            }
            .cap-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .res-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-banner {
                padding: 36px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-text h2 {
                font-size: 1.35rem;
            }
            .bottom-bar {
                padding: 8px 0;
                min-height: auto;
            }
            .bottom-bar-inner {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .bottom-bar-text {
                font-size: 0.82rem;
            }
            .bottom-bar .btn {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            body.has-bottom-bar {
                padding-bottom: calc(110px);
            }
            .params-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .params-value {
                text-align: left;
            }
            .form-card {
                padding: 24px 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand {
                font-size: 1.05rem;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .hero-inner {
                padding: 32px 0;
                gap: 26px;
            }
            .hero h1 {
                font-size: 1.45rem;
                letter-spacing: 0.3px;
            }
            .hero-desc {
                font-size: 0.88rem;
                line-height: 1.7;
            }
            .hero-stat-num {
                font-size: 1.25rem;
            }
            .hero-btn-row {
                flex-direction: column;
                width: 100%;
            }
            .hero-btn-row .btn {
                width: 100%;
            }
            .hero-panel {
                padding: 20px 16px;
                border-radius: var(--radius-md);
            }
            .panel-btn-row {
                flex-direction: column;
            }
            .panel-btn-row .btn {
                width: 100%;
            }
            .section {
                padding: 36px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .selling-card {
                padding: 20px 18px;
            }
            .proof-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .proof-num {
                font-size: 1.5rem;
            }
            .journey-strip {
                grid-template-columns: 1fr;
            }
            .cap-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .cap-cell {
                padding: 12px 8px;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .news-date {
                min-width: auto;
                height: auto;
                flex-direction: row;
                gap: 6px;
                padding: 4px 12px;
                border-radius: 6px;
            }
            .news-date .day {
                font-size: 0.95rem;
            }
            .news-date .mon {
                font-size: 0.7rem;
            }
            .news-side-card {
                flex-direction: column;
                text-align: center;
            }
            .news-side-card img {
                width: 100%;
                height: 120px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
            }
            .cta-actions {
                width: 100%;
                flex-direction: column;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .form-card {
                border-radius: var(--radius-md);
            }
            .site-footer {
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }
        }