/* roulang page: index */
:root {
            --bg-primary: #0B1220;
            --bg-elevated: rgba(255, 255, 255, 0.045);
            --bg-hover: rgba(255, 255, 255, 0.08);
            --primary-cyan: #00D4FF;
            --primary-blue: #2B7FFF;
            --accent-amber: #FFB020;
            --text-high: #F0F7FF;
            --text-mid: #A7B8CF;
            --text-low: #667799;
            --success: #2BD576;
            --danger: #FF5A6E;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-search: 50px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.35);
            --shadow-amber: 0 4px 24px rgba(255, 176, 32, 0.25);
            --section-gap: clamp(3.5rem, 8vw, 6rem);
            --fs-display: clamp(2.5rem, 5.2vw, 4.2rem);
            --fs-h1: clamp(1.9rem, 3.6vw, 2.8rem);
            --fs-h2: clamp(1.4rem, 2.2vw, 1.9rem);
            --fs-h3: 1.2rem;
            --fs-body: 1rem;
            --fs-sm: 0.875rem;
            --fs-xs: 0.78rem;
            --font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Segoe UI", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: var(--fs-body);
            line-height: 1.75;
            color: var(--text-high);
            background: var(--bg-primary);
            background-image:
                radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(255, 176, 32, 0.05) 0%, transparent 40%),
                linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: 100% 100%, 100% 100%, 46px 46px, 46px 46px;
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-cyan);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #66E5FF;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-card);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
        }
        section.section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: clamp(2rem, 5vw, 3.5rem);
        }
        .section-header .section-tagline {
            display: inline-block;
            font-size: var(--fs-xs);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--primary-cyan);
            background: rgba(0, 212, 255, 0.08);
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .section-header h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--text-high);
            line-height: 1.35;
            margin: 0 0 8px;
        }
        .section-header p {
            color: var(--text-mid);
            font-size: var(--fs-body);
            max-width: 640px;
            margin: 0 auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: var(--fs-body);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease-out;
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary-cyan {
            background: linear-gradient(135deg, #00D4FF, #2B7FFF);
            color: #04121F;
            box-shadow: var(--shadow-glow);
        }
        .btn-primary-cyan:hover {
            background: linear-gradient(135deg, #33DDFF, #4A90FF);
            color: #04121F;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 212, 255, 0.45);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-high);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-amber {
            background: linear-gradient(135deg, #FFB020, #FF7A00);
            color: #1A1206;
            box-shadow: var(--shadow-amber);
        }
        .btn-amber:hover {
            background: linear-gradient(135deg, #FFC042, #FF8E1F);
            color: #1A1206;
            transform: translateY(-2px);
            box-shadow: 0 6px 32px rgba(255, 176, 32, 0.4);
        }
        .btn-lg {
            padding: 14px 38px;
            font-size: 1.05rem;
            border-radius: 14px;
        }
        .btn-sm-nav {
            padding: 8px 18px;
            font-size: 0.875rem;
            border-radius: 28px;
        }
        .btn-block {
            width: 100%;
        }
        .tag-badge {
            display: inline-block;
            padding: 3px 12px;
            font-size: var(--fs-xs);
            font-weight: 500;
            border-radius: 6px;
            background: rgba(0, 212, 255, 0.1);
            color: var(--primary-cyan);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .tag-amber {
            background: rgba(255, 176, 32, 0.12);
            color: var(--accent-amber);
        }
        .tag-blue {
            background: rgba(43, 127, 255, 0.12);
            color: #6FB0FF;
        }
        .tag-green {
            background: rgba(43, 213, 118, 0.12);
            color: var(--success);
        }
        .tag-gray {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-mid);
        }
        .section-header.text-left {
            text-align: left;
        }
        .section-header.text-left p {
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 0.5rem;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 12px 0;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.85);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            gap: 18px;
        }
        .brand-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            padding: 4px 0;
        }
        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(43, 127, 255, 0.15));
            border: 1px solid rgba(0, 212, 255, 0.3);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.15);
        }
        .brand-text {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .header-search {
            flex: 0 1 520px;
            max-width: 520px;
            margin: 0 auto;
        }
        .search-shell {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-search);
            padding: 8px 16px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .search-shell:focus-within {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.25), 0 0 24px rgba(0, 212, 255, 0.2);
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(255, 255, 255, 0.1);
        }
        .search-svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--primary-cyan);
        }
        .search-shell input {
            flex: 1;
            border: none;
            background: transparent;
            color: var(--text-high);
            font-size: 0.925rem;
            outline: none;
            min-width: 0;
        }
        .search-shell input::placeholder {
            color: var(--text-low);
        }
        .search-shell input::-ms-clear {
            display: none;
        }
        .search-hint {
            font-size: 0.7rem;
            color: var(--text-mid);
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 8px;
            border-radius: 6px;
            white-space: nowrap;
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }
        .header-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .menu-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--text-mid);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 28px;
            transition: background 0.25s ease, color 0.25s ease;
            background: transparent;
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .menu-link:hover,
        .menu-link.active {
            color: var(--text-high);
            background: rgba(255, 255, 255, 0.06);
        }
        .menu-link.menu-amber {
            color: var(--accent-amber);
        }
        .menu-link.menu-amber:hover {
            background: rgba(255, 176, 32, 0.1);
            color: #FFC554;
        }
        .menu-dropdown {
            position: relative;
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            min-width: 200px;
            background: rgba(16, 28, 48, 0.92);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 10px;
            box-shadow: var(--shadow-card);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.28s ease;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 100;
        }
        .menu-dropdown:hover .dropdown-panel,
        .menu-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: block;
            color: var(--text-mid);
            font-size: 0.875rem;
            padding: 10px 14px;
            border-radius: 8px;
            text-decoration: none;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .dropdown-panel a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-cyan);
        }
        .header-burger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
            cursor: pointer;
            transition: background 0.2s ease;
            padding: 0;
        }
        .header-burger:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .header-burger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-high);
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
            background: rgba(16, 28, 48, 0.97);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }
        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            color: var(--text-mid);
            font-size: 0.95rem;
            text-decoration: none;
            border-radius: 10px;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--text-high);
            background: rgba(255, 255, 255, 0.06);
        }
        /* Hero */
        .hero {
            position: relative;
            padding: clamp(4rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 4.5rem);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 18, 32, 0.88) 35%, rgba(11, 18, 32, 0.55) 100%);
            backdrop-filter: blur(2px);
            -webkit-backdrop-filter: blur(2px);
        }
        .hero-overlay-grid {
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .hero-glow-cyan {
            position: absolute;
            top: -80px;
            right: -60px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-glow-amber {
            position: absolute;
            bottom: -40px;
            left: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 176, 32, 0.12) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: var(--fs-xs);
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 24px;
            text-transform: uppercase;
        }
        .hero-eyebrow .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(43, 213, 118, 0.5);
            }
            50% {
                box-shadow: 0 0 0 5px rgba(43, 213, 118, 0);
            }
        }
        .hero-title {
            font-size: var(--fs-display);
            font-weight: 700;
            color: var(--text-high);
            line-height: 1.2;
            margin: 0 0 18px;
            letter-spacing: 0.01em;
        }
        .hero-title .gradient-text {
            background: linear-gradient(135deg, #00D4FF, #6FB0FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-mid);
            max-width: 540px;
            margin: 0 0 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 52px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            padding: 24px 28px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            max-width: 720px;
        }
        .hero-stat-item {
            flex: 1 1 120px;
            min-width: 110px;
            text-align: left;
            padding: 0 8px;
        }
        .hero-stat-num {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--text-high);
            line-height: 1.25;
            display: flex;
            align-items: baseline;
            gap: 2px;
        }
        .hero-stat-num .suffix {
            font-size: 1rem;
            color: var(--primary-cyan);
            font-weight: 600;
        }
        .hero-stat-label {
            font-size: var(--fs-xs);
            color: var(--text-low);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }
        /* 优惠阶梯 */
        .pricing-section {
            position: relative;
        }
        .pricing-layout {
            display: flex;
            gap: 24px;
            align-items: stretch;
        }
        .pricing-primary {
            flex: 1 1 50%;
            background: linear-gradient(160deg, rgba(255, 176, 32, 0.08), rgba(255, 122, 0, 0.03));
            border: 1px solid rgba(255, 176, 32, 0.35);
            border-radius: 20px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35), 0 0 32px rgba(255, 176, 32, 0.08);
            position: relative;
            overflow: hidden;
            padding: 40px 36px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .pricing-primary::before {
            content: '当前热选';
            position: absolute;
            top: 18px;
            right: -36px;
            background: linear-gradient(135deg, #FFB020, #FF7A00);
            color: #1A1206;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 44px;
            transform: rotate(45deg);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .pricing-primary:hover {
            transform: translateY(-6px);
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4), 0 0 40px rgba(255, 176, 32, 0.15);
        }
        .pricing-secondary-group {
            flex: 1 1 50%;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .pricing-secondary {
            flex: 1;
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            padding: 28px 30px;
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .pricing-secondary:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 255, 0.2);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }
        .pricing-img {
            width: 110px;
            height: 110px;
            flex-shrink: 0;
            border-radius: 14px;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(43, 127, 255, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .pricing-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .pricing-img .img-fallback {
            font-size: 2.2rem;
            color: rgba(0, 212, 255, 0.4);
        }
        .pricing-body {
            flex: 1;
            min-width: 0;
        }
        .pricing-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 4px;
        }
        .pricing-desc {
            font-size: var(--fs-sm);
            color: var(--text-mid);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .pricing-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .pricing-price-line {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .pricing-price-old {
            font-size: var(--fs-sm);
            color: var(--text-low);
            text-decoration: line-through;
        }
        .pricing-price-now {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-high);
            font-variant-numeric: tabular-nums;
        }
        .pricing-price-now small {
            font-size: 0.9rem;
            color: var(--text-mid);
            font-weight: 400;
            margin-left: 2px;
        }
        .pricing-price-now.amber {
            color: var(--accent-amber);
        }
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .pricing-features li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: var(--fs-sm);
            color: var(--text-mid);
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .pricing-features li i {
            font-size: 0.65rem;
            color: var(--success);
        }
        .pricing-features li.feat-amber i {
            color: var(--accent-amber);
        }
        /* 对比表 */
        .compare-section {
            position: relative;
        }
        .compare-wrap {
            border-radius: 20px;
            overflow-x: auto;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .compare-table {
            width: 100%;
            min-width: 640px;
            border-collapse: separate;
            border-spacing: 0;
            font-size: 0.925rem;
        }
        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-mid);
        }
        .compare-table th {
            background: rgba(255, 255, 255, 0.05);
            font-weight: 600;
            color: var(--text-high);
            font-size: 0.95rem;
        }
        .compare-table th.col-label {
            text-align: left;
        }
        .compare-table td.col-label {
            text-align: left;
            font-weight: 500;
            color: var(--text-high);
        }
        .compare-table td .check {
            color: var(--success);
            font-size: 0.95rem;
        }
        .compare-table td .minus {
            color: var(--text-low);
            font-size: 0.95rem;
        }
        .compare-table th.col-hot {
            background: rgba(255, 176, 32, 0.08);
            border-left: 3px solid var(--accent-amber);
            position: relative;
        }
        .compare-table th.col-hot::after {
            content: '热选';
            position: absolute;
            top: 8px;
            right: 8px;
            font-size: 0.62rem;
            font-weight: 700;
            background: rgba(255, 176, 32, 0.2);
            color: var(--accent-amber);
            padding: 2px 8px;
            border-radius: 20px;
        }
        .compare-table td.col-hot {
            background: rgba(255, 176, 32, 0.04);
            border-left: 3px solid var(--accent-amber);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-cta-row {
            text-align: center;
            padding: 28px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .compare-cta-row .btn {
            min-width: 220px;
        }
        /* 限时入口 */
        .promo-section {
            position: relative;
            background: linear-gradient(135deg, rgba(255, 176, 32, 0.07), rgba(255, 122, 0, 0.02));
            border-top: 1px solid rgba(255, 176, 32, 0.15);
            border-bottom: 1px solid rgba(255, 176, 32, 0.15);
            padding: var(--section-gap) 0;
        }
        .promo-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .promo-info {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .promo-info .promo-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.2);
            color: var(--accent-amber);
            font-size: var(--fs-xs);
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .promo-info h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 10px;
        }
        .promo-info .promo-desc {
            color: var(--text-mid);
            font-size: 1rem;
            margin-bottom: 22px;
            max-width: 420px;
        }
        .promo-info .promo-note {
            font-size: var(--fs-sm);
            color: var(--text-low);
        }
        .promo-side {
            flex: 1 1 360px;
            min-width: 300px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
        }
        .countdown {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }
        .countdown-block {
            background: rgba(11, 18, 32, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            padding: 14px 18px;
            min-width: 72px;
            text-align: center;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .countdown-block .cd-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--danger);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            display: block;
        }
        .countdown-block .cd-label {
            font-size: var(--fs-xs);
            color: var(--text-mid);
            margin-top: 4px;
            display: block;
            letter-spacing: 0.08em;
        }
        .countdown-sep {
            font-size: 1.6rem;
            color: rgba(255, 255, 255, 0.3);
            font-weight: 200;
        }
        .promo-cta {
            margin-top: 8px;
        }
        /* 最新动态 */
        .news-section {
            position: relative;
        }
        .cms-grid {
            display: flex;
            gap: 28px;
            align-items: stretch;
        }
        .cms-main {
            flex: 1 1 50%;
            min-width: 0;
        }
        .cms-side {
            flex: 1 1 50%;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cms-card-main {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: var(--bg-elevated);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .cms-card-main:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.25);
            box-shadow: 0 12px 44px rgba(0, 0, 0, 0.45);
        }
        .cms-card-thumb {
            position: relative;
            height: 220px;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(43, 127, 255, 0.06));
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .cms-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .cms-card-main:hover .cms-card-thumb img {
            transform: scale(1.04);
        }
        .cms-card-thumb .thumb-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 18, 32, 0.6));
        }
        .cms-card-body {
            padding: 24px 26px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cms-card-body .tag-badge {
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .cms-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .cms-card-body h3 a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .cms-card-body h3 a:hover {
            color: var(--primary-cyan);
        }
        .cms-card-body p {
            font-size: var(--fs-sm);
            color: var(--text-mid);
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .cms-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 14px;
        }
        .cms-card-meta time {
            font-size: var(--fs-xs);
            color: var(--text-low);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cms-card-meta .read-more {
            font-size: var(--fs-sm);
            font-weight: 600;
            color: var(--primary-cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
        }
        .cms-card-meta .read-more:hover {
            gap: 8px;
            color: #66E5FF;
        }
        .cms-list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 14px;
            padding: 14px 18px;
            transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
            position: relative;
            overflow: hidden;
        }
        .cms-list-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-cyan);
            opacity: 0;
            transition: opacity 0.25s ease;
            border-radius: 0 3px 3px 0;
        }
        .cms-list-item:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 212, 255, 0.2);
            background: var(--bg-hover);
        }
        .cms-list-item:hover::before {
            opacity: 1;
        }
        .cms-list-icon {
            width: 52px;
            height: 52px;
            flex-shrink: 0;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(43, 127, 255, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-cyan);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .cms-list-content {
            flex: 1;
            min-width: 0;
        }
        .cms-list-content .row-top {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .cms-list-content h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-high);
            margin: 0;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .cms-list-content h4 a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .cms-list-content h4 a:hover {
            color: var(--primary-cyan);
        }
        .cms-list-content time {
            font-size: var(--fs-xs);
            color: var(--text-low);
        }
        .cms-list-arrow {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-mid);
            font-size: 0.8rem;
            transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }
        .cms-list-item:hover .cms-list-arrow {
            background: rgba(0, 212, 255, 0.12);
            color: var(--primary-cyan);
            transform: translateX(3px);
        }
        .cms-empty {
            text-align: center;
            padding: 60px 30px;
            border: 1px dashed rgba(255, 255, 255, 0.1);
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.02);
        }
        .cms-empty .icon {
            font-size: 2.6rem;
            color: var(--text-low);
            margin-bottom: 16px;
            display: block;
        }
        .cms-empty p {
            color: var(--text-mid);
            font-size: 1rem;
            margin: 0;
        }
        /* 咨询表单 */
        .contact-section {
            position: relative;
        }
        .contact-panel {
            display: flex;
            gap: 0;
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .contact-left {
            flex: 1 1 46%;
            padding: 44px 40px;
            background: linear-gradient(140deg, rgba(0, 212, 255, 0.05), rgba(43, 127, 255, 0.02));
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }
        .contact-left h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 8px;
        }
        .contact-left .ct-lead {
            color: var(--text-mid);
            font-size: 0.95rem;
            margin-bottom: 30px;
        }
        .contact-info-list {
            list-style: none;
            padding: 0;
            margin: 0 0 30px;
        }
        .contact-info-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 20px;
        }
        .contact-info-list .icon-wrap {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-cyan);
            flex-shrink: 0;
            font-size: 1rem;
        }
        .contact-info-list .info-text {
            flex: 1;
            min-width: 0;
        }
        .contact-info-list .info-text .label {
            font-size: var(--fs-xs);
            color: var(--text-low);
            display: block;
            margin-bottom: 2px;
            letter-spacing: 0.04em;
        }
        .contact-info-list .info-text .value {
            font-size: 0.95rem;
            color: var(--text-high);
            font-weight: 500;
        }
        .contact-promise {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .promise-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: var(--fs-xs);
            color: var(--text-mid);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 6px 14px;
            border-radius: 30px;
        }
        .promise-chip i {
            color: var(--success);
            font-size: 0.7rem;
        }
        .contact-right {
            flex: 1 1 54%;
            padding: 44px 40px;
        }
        .contact-right h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 8px;
        }
        .contact-right .ct-lead {
            color: var(--text-mid);
            font-size: 0.95rem;
            margin-bottom: 26px;
        }
        .form-label {
            font-size: var(--fs-sm);
            font-weight: 500;
            color: var(--text-mid);
            margin-bottom: 6px;
            display: block;
        }
        .form-control {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            color: var(--text-high);
            font-size: 0.925rem;
            padding: 11px 16px;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
        }
        .form-control:focus {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(0, 212, 255, 0.4);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
            color: var(--text-high);
        }
        .form-control::placeholder {
            color: var(--text-low);
        }
        select.form-control {
            appearance: auto;
        }
        select.form-control option {
            background: #141E2E;
            color: var(--text-high);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 110px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-item {
            margin-bottom: 16px;
        }
        .submit-wrap {
            margin-top: 6px;
        }
        /* FAQ */
        .faq-section {
            position: relative;
            padding-top: 0;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.15);
        }
        .faq-item.active {
            border-color: rgba(0, 212, 255, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            transition: color 0.25s ease;
            margin: 0;
            user-select: none;
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-mid);
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question {
            color: var(--primary-cyan);
        }
        .faq-item.active .faq-question i {
            transform: rotate(90deg);
            color: var(--primary-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-mid);
            line-height: 1.75;
            border-top: 1px solid transparent;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 16px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        /* 页脚 */
        .site-footer {
            background: rgba(8, 13, 24, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 64px 0 0;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .brand-text {
            font-size: 1.15rem;
            margin-bottom: 12px;
            display: block;
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.7;
            max-width: 280px;
            margin-bottom: 20px;
        }
        .footer-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--text-mid);
            font-size: 0.875rem;
            transition: color 0.2s ease, padding-left 0.2s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--primary-cyan);
            padding-left: 4px;
        }
        .footer-subscribe {
            margin-top: 16px;
        }
        .footer-subscribe .subscribe-input {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            color: var(--text-high);
            font-size: 0.875rem;
            padding: 9px 14px;
            min-width: 0;
        }
        .footer-subscribe input:focus {
            outline: none;
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
        }
        .qrcode-box {
            width: 110px;
            height: 110px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-bottom: 14px;
            color: var(--text-low);
            font-size: 0.75rem;
        }
        .qrcode-box i {
            font-size: 2rem;
            color: var(--text-mid);
        }
        .footer-icp {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 20px 0;
            text-align: center;
            font-size: var(--fs-xs);
            color: var(--text-low);
            letter-spacing: 0.03em;
        }
        .footer-icp a {
            color: var(--text-mid);
        }
        /* 响应式 */
        @media (max-width: 1199px) {
            .header-search {
                max-width: 360px;
                flex-basis: 360px;
            }
            .header-menu {
                gap: 2px;
            }
            .menu-link {
                padding: 8px 10px;
            }
        }
        @media (max-width: 991px) {
            .header-inner {
                gap: 12px;
            }
            .header-search {
                order: 3;
                flex: 1 1 100%;
                max-width: 100%;
                margin: 8px 0 0;
            }
            .site-header {
                height: auto;
            }
            .header-menu {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .pricing-layout {
                flex-direction: column;
            }
            .pricing-primary {
                flex: 1 1 auto;
            }
            .pricing-secondary {
                flex: 1 1 auto;
            }
            .cms-grid {
                flex-direction: column;
            }
            .contact-panel {
                flex-direction: column;
            }
            .contact-left {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 767px) {
            .site-header {
                padding: 10px 0;
            }
            .brand-text {
                font-size: 1rem;
            }
            .search-shell {
                padding: 6px 14px;
            }
            .search-hint {
                display: none;
            }
            .hero {
                padding: 3rem 0 2.5rem;
            }
            .hero-title {
                font-size: 2rem;
                line-height: 1.25;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                padding: 20px;
            }
            .pricing-primary {
                padding: 30px 24px;
            }
            .pricing-secondary {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
            }
            .pricing-img {
                width: 100%;
                height: 140px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .promo-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .promo-side {
                align-items: stretch;
            }
            .countdown {
                justify-content: flex-start;
            }
            .countdown-block {
                min-width: 60px;
                padding: 12px 14px;
            }
            .compare-cta-row .btn {
                width: 100%;
            }
            .contact-left,
            .contact-right {
                padding: 28px 24px;
            }
        }
        @media (max-width: 420px) {
            .hero-actions {
                flex-direction: column;
            }
            .hero-stat-item {
                flex: 1 1 46%;
                min-width: 0;
            }
            .countdown-block {
                min-width: 52px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1220;
            --bg-elevated: rgba(255, 255, 255, 0.045);
            --bg-hover: rgba(255, 255, 255, 0.08);
            --primary-cyan: #00D4FF;
            --primary-blue: #2B7FFF;
            --accent-amber: #FFB020;
            --text-high: #F0F7FF;
            --text-mid: #A7B8CF;
            --text-low: #667799;
            --success: #2BD576;
            --danger: #FF5A6E;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-search: 50px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.35);
            --shadow-amber: 0 4px 24px rgba(255, 176, 32, 0.25);
            --section-gap: clamp(3.5rem, 8vw, 6rem);
            --fs-display: clamp(2.5rem, 5.2vw, 4.2rem);
            --fs-h1: clamp(1.9rem, 3.6vw, 2.8rem);
            --fs-h2: clamp(1.4rem, 2.2vw, 1.9rem);
            --fs-h3: 1.2rem;
            --fs-body: 1rem;
            --fs-sm: 0.875rem;
            --fs-xs: 0.78rem;
            --font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Segoe UI", "Microsoft YaHei", sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            background-image: radial-gradient(circle at 20% 10%, rgba(0, 212, 255, 0.08) 0%, transparent 40%), radial-gradient(circle at 80% 90%, rgba(255, 176, 32, 0.05) 0%, transparent 30%);
            background-attachment: fixed;
            color: var(--text-high);
            line-height: 1.75;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1280px;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        a {
            color: var(--primary-cyan);
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }

        a:hover {
            color: var(--text-high);
            opacity: 0.9;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
        }

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

        /* ===== 导航栏 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
            position: relative;
        }

        .brand-link {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(43, 127, 255, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(0, 212, 255, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: 0.02em;
        }

        .brand-text .highlight {
            color: var(--primary-cyan);
        }

        .header-search {
            flex: 0 1 520px;
            position: relative;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-search);
            padding: 0 18px;
            height: 48px;
            transition: all 0.3s ease;
        }

        .search-form:focus-within {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.25), var(--shadow-glow);
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(255, 255, 255, 0.08);
        }

        .search-form .search-icon {
            width: 18px;
            height: 18px;
            color: var(--primary-cyan);
            margin-right: 12px;
            flex-shrink: 0;
        }

        .search-form input {
            flex: 1;
            background: transparent;
            border: 0;
            outline: 0;
            color: var(--text-high);
            font-size: 0.9rem;
            height: 100%;
        }

        .search-form input::placeholder {
            color: var(--text-mid);
        }

        .search-kbd {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 0.7rem;
            color: var(--text-mid);
            white-space: nowrap;
        }

        .header-menu {
            display: flex;
            align-items: center;
            gap: 16px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .menu-link {
            display: inline-block;
            padding: 8px 12px;
            color: var(--text-mid);
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.25s ease;
            background: transparent;
            border: 0;
            cursor: pointer;
        }

        .menu-link:hover {
            color: var(--text-high);
            background: rgba(255, 255, 255, 0.06);
            opacity: 1;
        }

        .menu-link.active {
            color: var(--primary-cyan);
            background: rgba(0, 212, 255, 0.08);
        }

        .menu-link.menu-amber {
            color: var(--accent-amber);
        }

        .menu-link.menu-amber:hover {
            background: rgba(255, 176, 32, 0.1);
            color: var(--accent-amber);
        }

        .menu-dropdown {
            position: relative;
        }

        .dropdown-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .dropdown-panel {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 200px;
            background: rgba(15, 29, 51, 0.95);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 8px;
            box-shadow: var(--shadow-card);
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.3s ease;
            z-index: 100;
        }

        .menu-dropdown:hover .dropdown-panel,
        .menu-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 10px 14px;
            color: var(--text-mid);
            font-size: 0.9rem;
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .dropdown-panel a:hover {
            background: var(--bg-hover);
            color: var(--primary-cyan);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            line-height: 1.4;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(0, 212, 255, 0.4);
            outline-offset: 2px;
        }

        .btn-primary-cyan {
            background: linear-gradient(135deg, #00D4FF, #2B7FFF);
            color: #04121F;
            border: 0;
            box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
        }

        .btn-primary-cyan:hover {
            background: linear-gradient(135deg, #22dbff, #4790ff);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
            color: #04121F;
            opacity: 1;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-high);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-high);
            transform: translateY(-2px);
        }

        .btn-sm-nav {
            padding: 8px 16px;
            font-size: 0.85rem;
        }

        /* 移动端汉堡 */
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: var(--text-high);
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(11, 18, 32, 0.96);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 20px;
            flex-direction: column;
            gap: 12px;
        }

        .mobile-menu.open {
            display: flex;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 28px 0 0;
            font-size: 0.875rem;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            color: var(--text-low);
        }

        .breadcrumb-custom a {
            color: var(--primary-cyan);
        }

        .breadcrumb-custom .sep {
            color: var(--text-low);
            opacity: 0.6;
        }

        .breadcrumb-current {
            color: var(--text-high);
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 48px 0 calc(var(--section-gap) * 0.6);
        }

        .article-content-wrap {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            padding: clamp(24px, 4vw, 48px);
            margin-bottom: 40px;
        }

        .article-title {
            font-size: var(--fs-h1);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-high);
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding-bottom: 24px;
            margin-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: var(--fs-sm);
            color: var(--text-low);
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-cat-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.25);
            color: var(--primary-cyan);
            border-radius: 20px;
            font-size: var(--fs-xs);
            font-weight: 600;
        }

        .article-body {
            max-width: 820px;
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-mid);
        }

        .article-body p {
            margin-bottom: 1.6em;
        }

        .article-body h2 {
            font-size: var(--fs-h2);
            color: var(--text-high);
            font-weight: 700;
            margin-top: 1.6em;
            margin-bottom: 0.8em;
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.15rem;
            color: var(--text-high);
            font-weight: 600;
            margin-top: 1.4em;
            margin-bottom: 0.6em;
        }

        .article-body img {
            border-radius: 16px;
            margin: 24px 0;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary-cyan);
            background: var(--bg-elevated);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text-mid);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.4rem;
            margin-bottom: 1.6em;
        }

        .article-body li {
            margin-bottom: 0.5em;
        }

        .article-body a {
            color: var(--primary-cyan);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--text-high);
        }

        /* 空文章 */
        .article-empty {
            text-align: center;
            padding: 80px 20px;
        }

        .article-empty .empty-icon {
            font-size: 3rem;
            color: var(--text-low);
            margin-bottom: 16px;
        }

        .article-empty h2 {
            font-size: 1.4rem;
            color: var(--text-high);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-mid);
            margin-bottom: 20px;
        }

        /* 标签行 */
        .article-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 24px 0;
            margin: 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .tag-chip {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            font-size: var(--fs-xs);
            color: var(--text-mid);
            transition: all 0.25s ease;
        }

        .tag-chip:hover {
            border-color: var(--primary-cyan);
            color: var(--primary-cyan);
            background: rgba(0, 212, 255, 0.08);
        }

        /* 上一篇/下一篇 */
        .post-prev-next {
            display: flex;
            gap: 16px;
            margin-top: 32px;
        }

        .post-pn-btn {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 14px 20px;
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            color: var(--text-mid);
            font-size: 0.9rem;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .post-pn-btn:hover {
            background: var(--bg-hover);
            border-color: rgba(0, 212, 255, 0.3);
            color: var(--text-high);
            transform: translateY(-2px);
        }

        .post-pn-btn.next {
            justify-content: flex-end;
            text-align: right;
        }

        /* 侧边栏 */
        .sidebar-wrap {
            position: sticky;
            top: 90px;
        }

        .sidebar-card {
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }

        .sidebar-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-title i {
            color: var(--primary-cyan);
        }

        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .sidebar-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: all 0.25s ease;
            padding: 8px;
            border-radius: 12px;
            margin: -8px;
        }

        .sidebar-item:hover {
            background: var(--bg-hover);
        }

        .sidebar-thumb {
            width: 64px;
            height: 64px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(43, 127, 255, 0.1));
        }

        .sidebar-item-info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-item-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-high);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
            transition: color 0.2s;
        }

        .sidebar-item:hover .sidebar-item-title {
            color: var(--primary-cyan);
        }

        .sidebar-item-date {
            font-size: var(--fs-xs);
            color: var(--text-low);
            margin-top: 4px;
        }

        .sidebar-empty {
            padding: 40px 20px;
            text-align: center;
            color: var(--text-low);
            font-size: 0.9rem;
        }

        .sidebar-empty i {
            font-size: 2rem;
            display: block;
            margin-bottom: 10px;
            opacity: 0.5;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--section-gap) 0;
            background: rgba(255, 255, 255, 0.015);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .faq-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .faq-heading h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--text-high);
        }

        .faq-heading p {
            color: var(--text-mid);
            margin-top: 8px;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.3);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            border: 0;
            background: transparent;
            width: 100%;
            text-align: left;
            transition: color 0.3s ease;
        }

        .faq-q:hover {
            color: var(--primary-cyan);
        }

        .faq-item.open .faq-q {
            color: var(--primary-cyan);
        }

        .faq-q .fa-chevron-down {
            transition: transform 0.3s ease;
            color: var(--text-mid);
            flex-shrink: 0;
        }

        .faq-item.open .faq-q .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary-cyan);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
        }

        .faq-a-inner {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-mid);
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 16px;
            margin-top: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: calc(var(--section-gap) * 0.7) 0;
        }

        .cta-card {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(43, 127, 255, 0.04)), rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(0, 212, 255, 0.15);
            border-radius: 24px;
            padding: clamp(40px, 6vw, 72px);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 176, 32, 0.08), transparent 70%);
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: var(--text-mid);
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: rgba(8, 13, 25, 0.8);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 56px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo .brand-text {
            font-size: 1.1rem;
        }

        .footer-brand p {
            color: var(--text-mid);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 300px;
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: var(--text-mid);
            font-size: 0.875rem;
            transition: all 0.25s ease;
            display: inline-block;
            padding: 2px 0;
        }

        .footer-links a:hover {
            color: var(--primary-cyan);
            transform: translateX(4px);
        }

        .qrcode-box {
            width: 120px;
            height: 120px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-mid);
            font-size: 0.8rem;
            margin-bottom: 12px;
        }

        .qrcode-box i {
            font-size: 2.2rem;
            color: var(--primary-cyan);
        }

        .footer-icp {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 20px 0;
            text-align: center;
            color: var(--text-low);
            font-size: 0.8rem;
        }

        .footer-icp a {
            color: var(--text-low);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .header-search {
                flex-basis: 360px;
            }

            .header-menu {
                gap: 10px;
            }

            .menu-link {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 991.98px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 12px;
            }

            .header-search {
                order: 3;
                flex: 1 1 100%;
            }

            .search-form {
                width: 100%;
            }

            .header-menu {
                display: none;
            }

            .navbar-toggler {
                display: flex;
            }

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

        @media (max-width: 767.98px) {
            .container {
                padding: 0 16px;
            }

            .article-main {
                padding-top: 24px;
            }

            .article-content-wrap {
                padding: 20px;
                border-radius: 16px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-meta {
                gap: 10px;
                font-size: 0.78rem;
            }

            .post-prev-next {
                flex-direction: column;
            }

            .post-pn-btn {
                justify-content: flex-start;
                text-align: left;
            }

            .post-pn-btn.next {
                justify-content: flex-start;
                text-align: left;
            }

            .sidebar-wrap {
                position: static;
                margin-top: 40px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }

            .faq-q {
                font-size: 0.95rem;
                padding: 16px 16px;
            }

            .faq-a-inner {
                padding: 14px 16px 16px;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 1.05rem;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
            }

            .search-form {
                height: 44px;
                padding: 0 14px;
            }

            .search-kbd {
                display: none;
            }

            .article-content-wrap {
                padding: 16px;
            }

            .article-title {
                font-size: 1.25rem;
            }

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

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

            .btn {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1220;
            --bg-elevated: rgba(255, 255, 255, 0.045);
            --bg-hover: rgba(255, 255, 255, 0.08);
            --primary-cyan: #00D4FF;
            --primary-blue: #2B7FFF;
            --accent-amber: #FFB020;
            --text-high: #F0F7FF;
            --text-mid: #A7B8CF;
            --text-low: #667799;
            --success: #2BD576;
            --danger: #FF5A6E;
            --fs-display: clamp(2.5rem, 5.2vw, 4.2rem);
            --fs-h1: clamp(1.9rem, 3.6vw, 2.8rem);
            --fs-h2: clamp(1.4rem, 2.2vw, 1.9rem);
            --fs-h3: 1.2rem;
            --fs-body: 1rem;
            --fs-sm: 0.875rem;
            --fs-xs: 0.78rem;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-search: 50px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.35);
            --shadow-amber: 0 4px 24px rgba(255, 176, 32, 0.25);
            --section-gap: clamp(3.5rem, 8vw, 6rem);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Segoe UI", "Microsoft YaHei", sans-serif;
            background: var(--bg-primary);
            background-image: radial-gradient(circle at 50% 0%, rgba(15, 29, 51, 0.85) 0%, rgba(11, 18, 32, 1) 70%),
                linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: auto, 44px 44px, 44px 44px;
            color: var(--text-high);
            line-height: 1.75;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

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

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-header {
            margin-bottom: 38px;
        }

        .section-header .section-overline {
            display: inline-block;
            font-size: var(--fs-xs);
            letter-spacing: 0.12em;
            color: var(--primary-cyan);
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            padding: 4px 14px;
            border-radius: 6px;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .section-header h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 8px;
            color: var(--text-high);
        }

        .section-header p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            max-width: 640px;
        }

        /* ===== 按钮 ===== */
        .btn-primary-cyan {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #00D4FF, #2B7FFF);
            color: #04121F;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: var(--fs-sm);
            transition: all 0.25s ease;
            box-shadow: var(--shadow-glow);
            line-height: 1.4;
        }

        .btn-primary-cyan:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 212, 255, 0.5);
            color: #04121F;
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-high);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: var(--fs-sm);
            font-weight: 500;
            transition: all 0.25s ease;
        }

        .btn-outline-light-custom:hover {
            border-color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-high);
            transform: translateY(-2px);
        }

        .btn-amber {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #FFB020, #FF7A00);
            color: #1A1206;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: var(--fs-sm);
            transition: all 0.25s ease;
            box-shadow: var(--shadow-amber);
        }

        .btn-amber:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 30px rgba(255, 176, 32, 0.4);
            color: #1A1206;
        }

        .btn-sm-nav {
            padding: 7px 16px;
            font-size: 0.82rem;
            border-radius: 9px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            padding: 14px 0;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .brand-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 700;
            white-space: nowrap;
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            background: rgba(0, 212, 255, 0.15);
            border: 1px solid rgba(0, 212, 255, 0.4);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.2);
        }

        .brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .brand-text {
            color: var(--text-high);
            letter-spacing: 0.01em;
        }

        .header-search {
            flex: 1;
            max-width: 520px;
            margin: 0 auto;
        }

        .header-search.mobile {
            display: none;
        }

        .search-group {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-search);
            padding: 8px 16px;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .search-group:focus-within {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.25), var(--shadow-glow);
            border-color: rgba(0, 212, 255, 0.35);
        }

        .search-group .search-icon {
            width: 18px;
            height: 18px;
            color: var(--primary-cyan);
            flex-shrink: 0;
        }

        .search-group input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-high);
            font-size: 0.9rem;
        }

        .search-group input::placeholder {
            color: var(--text-low);
        }

        .search-kbd {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-mid);
            font-size: 0.72rem;
            border-radius: 6px;
            padding: 2px 8px;
            font-family: inherit;
            white-space: nowrap;
        }

        .header-menu {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
            margin-left: auto;
        }

        .menu-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-mid);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 6px 4px;
            border-radius: 6px;
            transition: all 0.2s ease;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-link:hover,
        .menu-link.active {
            color: var(--text-high);
        }

        .menu-link.menu-amber {
            color: var(--accent-amber);
        }

        .menu-link.menu-amber:hover {
            color: #FFCE6A;
            background: rgba(255, 176, 32, 0.08);
        }

        .menu-dropdown {
            position: relative;
        }

        .dropdown-trigger {
            font-size: 0.9rem;
            color: var(--text-mid);
        }

        .dropdown-trigger.active {
            color: var(--text-high);
        }

        .dropdown-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            min-width: 200px;
            background: rgba(15, 25, 43, 0.96);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 10px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
            z-index: 50;
        }

        .menu-dropdown.open .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 10px 14px;
            border-radius: 8px;
            color: var(--text-mid);
            font-size: 0.88rem;
            transition: all 0.2s ease;
        }

        .dropdown-panel a:hover,
        .dropdown-panel a.active {
            background: var(--bg-hover);
            color: var(--text-high);
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.05);
            align-items: center;
            justify-content: center;
            color: var(--text-high);
            font-size: 1.1rem;
        }

        .mobile-menu-panel {
            display: none;
            padding: 12px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(11, 18, 32, 0.92);
            backdrop-filter: blur(16px);
        }

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

        .mobile-menu-panel .mobile-link {
            display: block;
            padding: 12px 8px;
            color: var(--text-mid);
            font-size: 0.92rem;
            border-radius: 8px;
        }

        .mobile-menu-panel .mobile-link:hover {
            color: var(--text-high);
            background: var(--bg-hover);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 22px 0 0;
            font-size: 0.85rem;
            color: var(--text-mid);
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .breadcrumb-wrap a {
            color: var(--primary-cyan);
        }

        .breadcrumb-wrap a:hover {
            text-decoration: underline;
        }

        .breadcrumb-wrap .sep {
            margin: 0 8px;
            color: var(--text-low);
        }

        .breadcrumb-wrap .current {
            color: var(--text-high);
            font-weight: 500;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            padding: 70px 0 80px;
            position: relative;
            background-image: linear-gradient(180deg, rgba(11, 18, 32, 0.9) 0%, rgba(11, 18, 32, 0.75) 50%, rgba(11, 18, 32, 0.92) 100%),
                url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .category-hero .hero-content {
            max-width: 780px;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.3);
            border-radius: 6px;
            color: var(--primary-cyan);
            font-size: var(--fs-xs);
            font-weight: 600;
            padding: 5px 14px;
            margin-bottom: 18px;
        }

        .category-hero h1 {
            font-size: var(--fs-h1);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-high);
            margin-bottom: 16px;
        }

        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-mid);
            line-height: 1.8;
            max-width: 660px;
            margin-bottom: 28px;
        }

        .category-hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 48px;
            max-width: 680px;
        }

        .hero-stats .stat-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            padding: 18px 14px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
        }

        .hero-stats .stat-item:hover {
            background: var(--bg-hover);
            transform: translateY(-3px);
        }

        .hero-stats .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary-cyan);
            line-height: 1.2;
        }

        .hero-stats .stat-label {
            font-size: var(--fs-xs);
            color: var(--text-mid);
            margin-top: 4px;
        }

        /* ===== Entry Services ===== */
        .entry-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 24px;
            align-items: stretch;
        }

        .entry-main {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .entry-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--primary-cyan), var(--primary-blue));
        }

        .entry-main:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.3);
        }

        .entry-main .entry-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(255, 176, 32, 0.15);
            color: var(--accent-amber);
            border: 1px solid rgba(255, 176, 32, 0.35);
            font-size: var(--fs-xs);
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 600;
        }

        .entry-main .entry-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-cyan);
            font-size: 1.3rem;
            margin-bottom: 18px;
        }

        .entry-main h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .entry-main p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            line-height: 1.8;
            margin-bottom: 20px;
            flex: 1;
        }

        .entry-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .entry-tags span {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            font-size: var(--fs-xs);
            color: var(--text-mid);
            padding: 4px 10px;
        }

        .entry-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-cyan);
            font-size: var(--fs-sm);
            font-weight: 600;
        }

        .entry-link i {
            transition: transform 0.2s ease;
        }

        .entry-link:hover i {
            transform: translateX(4px);
        }

        .entry-stack {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }

        .entry-sub {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 26px;
            position: relative;
            transition: all 0.3s ease;
        }

        .entry-sub:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.25);
            background: rgba(255, 255, 255, 0.06);
        }

        .entry-sub .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-cyan);
            font-size: 1.1rem;
            margin-bottom: 14px;
        }

        .entry-sub h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .entry-sub p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .entry-sub .entry-link {
            font-size: var(--fs-xs);
        }

        /* ===== Scenarios ===== */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
            background: var(--bg-elevated);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .scenario-image:hover img {
            transform: scale(1.02);
        }

        .scenario-text .scenario-index {
            font-size: var(--fs-xs);
            color: var(--primary-cyan);
            font-weight: 700;
            letter-spacing: 0.1em;
            margin-bottom: 10px;
            display: inline-block;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            padding: 4px 10px;
            border-radius: 6px;
        }

        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .scenario-text p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ===== Process ===== */
        .process-section {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .process-step {
            position: relative;
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            transition: all 0.25s ease;
        }

        .process-step:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .process-step .step-num {
            width: 46px;
            height: 46px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(43, 127, 255, 0.2));
            border: 1px solid rgba(0, 212, 255, 0.35);
            color: var(--primary-cyan);
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            line-height: 1.7;
            margin: 0;
        }

        .process-step::after {
            content: '→';
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: var(--text-low);
            font-size: 1rem;
            z-index: 2;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.25);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            background: transparent;
            transition: color 0.25s ease;
        }

        .faq-item .faq-question:hover {
            color: var(--primary-cyan);
        }

        .faq-item .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--text-mid);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(90deg);
            border-color: var(--primary-cyan);
            color: var(--primary-cyan);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item .faq-answer-inner {
            padding: 0 22px 20px;
            color: var(--text-mid);
            font-size: 0.88rem;
            line-height: 1.8;
            max-width: 760px;
        }

        /* ===== CTA / Contact ===== */
        .contact-section {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .contact-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 44px;
            backdrop-filter: blur(18px);
            box-shadow: var(--shadow-card);
        }

        .contact-left h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .contact-left > p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            margin-bottom: 24px;
        }

        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            color: var(--text-mid);
            font-size: var(--fs-sm);
        }

        .contact-list li i {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.2);
            color: var(--primary-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .contact-form .mb-3 {
            margin-bottom: 18px;
        }

        .contact-form label {
            font-size: var(--fs-sm);
            color: var(--text-mid);
            margin-bottom: 6px;
            display: block;
        }

        .contact-form .form-control,
        .contact-form .form-select {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            color: var(--text-high);
            padding: 11px 16px;
            font-size: 0.9rem;
            transition: box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .contact-form .form-control:focus,
        .contact-form .form-select:focus {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 212, 255, 0.5);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
            color: var(--text-high);
        }

        .contact-form .form-control::placeholder {
            color: var(--text-low);
        }

        .contact-form .form-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23667799' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
        }

        .contact-form .form-select option {
            background: #0B1220;
            color: var(--text-high);
        }

        .contact-form textarea.form-control {
            min-height: 110px;
            resize: vertical;
        }

        /* ===== Footer ===== */
        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(8, 14, 26, 0.7);
            padding: 56px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            color: var(--text-mid);
            font-size: var(--fs-sm);
            line-height: 1.7;
            margin-top: 8px;
            max-width: 280px;
        }

        .footer-logo {
            font-size: 1rem;
        }

        .footer-title {
            font-size: var(--fs-sm);
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 14px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: var(--text-mid);
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }

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

        .qrcode-box {
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            color: var(--text-mid);
            font-size: var(--fs-xs);
            margin-top: 8px;
        }

        .qrcode-box i {
            font-size: 1.6rem;
            color: var(--text-low);
        }

        .footer-icp {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            text-align: center;
            color: var(--text-low);
            font-size: 0.8rem;
        }

        .footer-icp a {
            color: var(--text-low);
        }

        .footer-icp a:hover {
            color: var(--text-mid);
        }

        /* ===== Scroll top ===== */
        .back-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
            color: #04121F;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            box-shadow: var(--shadow-glow);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .back-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-top:hover {
            transform: translateY(-3px);
            filter: brightness(1.1);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .header-search {
                max-width: 360px;
            }
            .category-hero .hero-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 991.98px) {
            .header-inner {
                gap: 12px;
            }
            .header-search {
                max-width: 280px;
            }
            .header-menu {
                gap: 8px;
            }
            .menu-link {
                font-size: 0.82rem;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .entry-stack {
                grid-template-rows: none;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scenario-image {
                order: -1;
            }
            .scenario-row:nth-child(even) .scenario-image {
                order: 2;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-step::after {
                display: none;
            }
            .contact-panel {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767.98px) {
            .site-header {
                padding: 10px 0;
            }
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
            }
            .brand-link {
                font-size: 0.95rem;
                margin-right: auto;
            }
            .brand-icon {
                width: 30px;
                height: 30px;
            }
            .header-search.desktop {
                display: none;
            }
            .header-search.mobile {
                display: block;
                width: 100%;
                max-width: 100%;
                order: 3;
                flex-basis: 100%;
            }
            .header-search.mobile .search-group {
                padding: 7px 14px;
                border-radius: 50px;
            }
            .header-menu {
                display: none;
            }
            .hamburger {
                display: inline-flex;
            }
            .category-hero {
                padding: 48px 0 56px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-stats .stat-num {
                font-size: 1.4rem;
            }
            .entry-main {
                padding: 24px 20px;
            }
            .entry-main h3 {
                font-size: 1.2rem;
            }
            .entry-stack {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 3.5rem 0;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .scenario-text h3 {
                font-size: 1.3rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .contact-panel {
                padding: 24px 20px;
            }
            .btn-primary-cyan,
            .btn-outline-light-custom,
            .btn-amber {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-icp {
                font-size: 0.72rem;
                line-height: 1.6;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-text {
                font-size: 0.9rem;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .hero-stats .stat-item {
                padding: 14px 10px;
            }
            .hero-stats .stat-num {
                font-size: 1.2rem;
            }
            .faq-item .faq-question {
                font-size: 0.92rem;
                padding: 16px;
            }
            .faq-item .faq-answer-inner {
                font-size: 0.85rem;
                padding: 0 16px 16px;
            }
        }