/* roulang page: index */
:root {
            --brand-50: #f0f6ff;
            --brand-100: #dce9fd;
            --brand-200: #c0d9fb;
            --brand-300: #94c0f7;
            --brand-400: #619ef1;
            --brand-500: #3d7eea;
            --brand-600: #2b61de;
            --brand-700: #234cbc;
            --brand-800: #203f99;
            --brand-900: #1e387a;
            --brand-950: #16234b;
            --accent-50: #fef8ec;
            --accent-100: #fdeecb;
            --accent-200: #fadb91;
            --accent-300: #f6c257;
            --accent-400: #f2aa2c;
            --accent-500: #eb8a14;
            --accent-600: #d0650e;
            --bg: #f7f9fc;
            --surface: #ffffff;
            --text: #1a2233;
            --text-soft: #4a5568;
            --text-weak: #7a8699;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(22, 35, 75, 0.06), 0 1px 2px rgba(22, 35, 75, 0.04);
            --shadow-md: 0 4px 16px rgba(22, 35, 75, 0.08), 0 2px 4px rgba(22, 35, 75, 0.04);
            --shadow-lg: 0 12px 32px rgba(22, 35, 75, 0.12), 0 4px 8px rgba(22, 35, 75, 0.06);
            --shadow-xl: 0 20px 48px rgba(22, 35, 75, 0.16), 0 8px 16px rgba(22, 35, 75, 0.08);
            --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 240ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 360ms cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --header-h: 72px;
        }

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

        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

        body {
            margin: 0;
            font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
        a:hover { color: var(--brand-600); }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        input, textarea, select { font-family: inherit; font-size: 1rem; }
        :focus-visible { outline: 3px solid var(--brand-400); outline-offset: 2px; border-radius: 4px; }

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

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .brand-mark {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-900));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.25rem;
            flex-shrink: 0;
            letter-spacing: -0.5px;
            box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 0;
        }
        .brand-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            letter-spacing: -0.01em;
        }
        .brand-sub {
            font-size: 0.72rem;
            color: var(--text-weak);
            font-weight: 500;
            white-space: nowrap;
            letter-spacing: 0.04em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: var(--brand-50);
            color: var(--brand-700);
        }
        .nav-links a.active {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 999px;
            background: var(--brand-600);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(43, 97, 222, 0.3);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background: var(--brand-700);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(43, 97, 222, 0.4);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .hamburger.open span:nth-child(2) { opacity: 0; }
        .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            padding: 16px 24px 24px;
            z-index: 99;
            transition: all var(--transition);
        }
        .mobile-menu.open { display: block; }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            border-radius: 12px;
            font-weight: 500;
            color: var(--text-soft);
            margin-bottom: 4px;
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover { background: var(--brand-50); color: var(--brand-700); }
        .mobile-menu a.active { background: var(--brand-600); color: #fff; }
        .mobile-menu .mobile-cta {
            margin-top: 12px;
            text-align: center;
            background: var(--brand-600);
            color: #fff;
            font-weight: 600;
            border-radius: 12px;
            padding: 14px 16px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 64px 0 72px;
            overflow: hidden;
            background: linear-gradient(180deg, #f0f6ff 0%, #f7f9fc 100%);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 52px;
            align-items: center;
        }
        .hero-left { min-width: 0; }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: var(--brand-50);
            border: 1px solid var(--brand-200);
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--brand-700);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-tag .dot {
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: var(--accent-500);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.2); }
        }
        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 0 0 18px;
            color: var(--text);
        }
        .hero-title .highlight {
            color: var(--brand-600);
            position: relative;
            white-space: nowrap;
        }
        .hero-title .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 8px;
            background: rgba(246, 194, 87, 0.45);
            border-radius: 4px;
            z-index: 0;
        }
        .hero-desc {
            font-size: 1.08rem;
            color: var(--text-soft);
            line-height: 1.8;
            margin: 0 0 28px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 6px 18px rgba(43, 97, 222, 0.3);
        }
        .btn-primary:hover {
            background: var(--brand-700);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(43, 97, 222, 0.38);
        }
        .btn-outline {
            background: #fff;
            border: 1.5px solid var(--border);
            color: var(--text-soft);
        }
        .btn-outline:hover {
            border-color: var(--brand-400);
            color: var(--brand-700);
            background: var(--brand-50);
            transform: translateY(-1px);
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--brand-700);
            letter-spacing: -0.02em;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-weak);
            font-weight: 500;
        }

        /* Hero card stack */
        .hero-stack {
            position: relative;
            height: 520px;
            min-width: 0;
        }
        .stack-card {
            position: absolute;
            border-radius: var(--radius-lg);
            background: #fff;
            box-shadow: var(--shadow-xl);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
        }
        .stack-card:hover {
            box-shadow: 0 24px 56px rgba(22, 35, 75, 0.2);
        }
        .stack-card-main {
            width: 62%;
            height: 78%;
            top: 6%;
            left: 4%;
            z-index: 3;
            overflow: hidden;
            position: relative;
        }
        .stack-card-main .stack-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .stack-card-main .stack-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 22px;
            background: linear-gradient(180deg, transparent 0%, rgba(22, 35, 75, 0.78) 100%);
            color: #fff;
        }
        .stack-card-main .stack-overlay h3 {
            margin: 0 0 4px;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .stack-card-main .stack-overlay p {
            margin: 0;
            font-size: 0.84rem;
            opacity: 0.88;
            line-height: 1.5;
        }
        .stack-card-side-1 {
            width: 42%;
            height: 55%;
            top: 0%;
            right: 0%;
            z-index: 1;
            transform: rotate(3deg);
            border-radius: var(--radius-md);
        }
        .stack-card-side-1 img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .stack-card-side-2 {
            width: 38%;
            height: 48%;
            bottom: 0%;
            right: 8%;
            z-index: 2;
            transform: rotate(-2deg);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-900);
            color: #fff;
            text-align: center;
            padding: 16px;
        }
        .stack-card-side-2 .inner-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-400);
            letter-spacing: -0.03em;
        }
        .stack-card-side-2 .inner-label {
            font-size: 0.8rem;
            opacity: 0.82;
            margin-top: 2px;
        }

        /* Section base */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            margin-bottom: 40px;
            max-width: 720px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-600);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-tag::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--brand-500);
            border-radius: 2px;
        }
        .section-head.center .section-tag::before { display: none; }
        .section-head.center .section-tag::after {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--brand-500);
            border-radius: 2px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin: 0 0 12px;
            line-height: 1.35;
        }
        .section-desc {
            font-size: 0.98rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.75;
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-200);
        }
        .card-body { padding: 22px 20px; }
        .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            letter-spacing: -0.01em;
        }
        .card-text {
            font-size: 0.88rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.65;
        }
        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 14px;
            background: var(--brand-50);
            color: var(--brand-600);
            flex-shrink: 0;
        }

        /* Capability section */
        .cap-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .cap-card {
            padding: 26px 22px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .cap-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--brand-200);
        }
        .cap-num {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--brand-400);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        /* Scene cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .scene-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
            aspect-ratio: 16/10;
        }
        .scene-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .scene-card:hover img { transform: scale(1.05); }
        .scene-card .scene-overlay {
            position: relative;
            z-index: 2;
            padding: 22px 20px;
            background: linear-gradient(180deg, transparent 0%, rgba(22, 35, 75, 0.82) 100%);
            color: #fff;
            width: 100%;
        }
        .scene-card h3 { margin: 0 0 6px; font-size: 1.1rem; font-weight: 700; }
        .scene-card p { margin: 0; font-size: 0.84rem; opacity: 0.88; line-height: 1.55; }

        /* Matrix */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .matrix-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-200);
        }
        .matrix-card.featured {
            border: 2px solid var(--brand-500);
            box-shadow: var(--shadow-md);
        }
        .matrix-card .badge-featured {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--brand-600);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 0 var(--radius-md) 0 var(--radius-md);
            letter-spacing: 0.04em;
        }
        .matrix-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.03em;
            margin: 12px 0 4px;
        }
        .matrix-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-weak);
            letter-spacing: 0;
        }

        /* Trust wall */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 18px 16px;
            transition: all var(--transition-fast);
        }
        .trust-item:hover {
            border-color: var(--brand-300);
            box-shadow: var(--shadow-sm);
        }
        .trust-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-50);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            position: relative;
        }
        .step-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: var(--brand-600);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            box-shadow: 0 4px 10px rgba(43, 97, 222, 0.3);
        }

        /* Cases */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 24px 20px;
            transition: all var(--transition);
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .case-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .case-avatar {
            width: 38px;
            height: 38px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-400), var(--brand-700));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .case-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .case-loc {
            font-size: 0.78rem;
            color: var(--text-weak);
        }
        .case-quote {
            font-size: 0.88rem;
            color: var(--text-soft);
            line-height: 1.7;
            margin: 0;
            border-left: 3px solid var(--brand-300);
            padding-left: 14px;
        }

        /* Vertical cards / 竖屏种草 */
        .v-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .v-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
        }
        .v-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .v-card .v-img-wrap {
            position: relative;
            aspect-ratio: 3/4;
            overflow: hidden;
        }
        .v-card .v-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .v-card:hover .v-img-wrap img { transform: scale(1.05); }
        .v-card .v-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(255,255,255,0.92);
            color: var(--brand-700);
            font-size: 0.68rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .v-card .v-body { padding: 16px 14px; }
        .v-card .v-title {
            font-weight: 600;
            font-size: 0.88rem;
            line-height: 1.45;
            margin: 0 0 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card img { width: 100%; height: 160px; object-fit: cover; }
        .news-card .news-body { padding: 18px 16px; }
        .news-date {
            font-size: 0.72rem;
            color: var(--text-weak);
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .news-title {
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.5;
            margin: 0;
        }

        /* Journey */
        .journey-bar {
            display: flex;
            gap: 0;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            flex-wrap: wrap;
        }
        .journey-step {
            flex: 1;
            min-width: 140px;
            padding: 24px 18px;
            text-align: center;
            border-right: 1px solid var(--border);
            transition: all var(--transition-fast);
            position: relative;
        }
        .journey-step:last-child { border-right: none; }
        .journey-step:hover { background: var(--brand-50); }
        .journey-step .j-icon {
            width: 42px;
            height: 42px;
            border-radius: 999px;
            background: var(--brand-50);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            font-size: 1.1rem;
            font-weight: 700;
        }
        .journey-step .j-title {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .journey-step .j-desc {
            font-size: 0.78rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover { border-color: var(--brand-200); }
        .faq-item details > summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-fast);
        }
        .faq-item details > summary::-webkit-details-marker { display: none; }
        .faq-item details > summary .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 999px;
            background: var(--brand-50);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .faq-item details[open] > summary .faq-icon { transform: rotate(180deg); }
        .faq-item details > div {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--text-soft);
            line-height: 1.7;
        }

        /* Form */
        .form-section {
            background: linear-gradient(135deg, var(--brand-900), var(--brand-700));
            border-radius: var(--radius-xl);
            padding: 52px 44px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .form-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 999px;
            background: rgba(246, 194, 87, 0.18);
            pointer-events: none;
        }
        .form-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 999px;
            background: rgba(255,255,255,0.06);
            pointer-events: none;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            position: relative;
            z-index: 2;
        }
        .form-left h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 14px;
            line-height: 1.35;
        }
        .form-left p {
            font-size: 0.94rem;
            opacity: 0.85;
            margin: 0 0 20px;
            line-height: 1.7;
        }
        .privacy-note {
            font-size: 0.78rem;
            opacity: 0.7;
            margin-top: 14px;
            line-height: 1.5;
        }
        .form-fields {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .form-input {
            width: 100%;
            padding: 13px 16px;
            border-radius: 10px;
            border: 1px solid rgba(255,255,255,0.25);
            background: rgba(255,255,255,0.12);
            color: #fff;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .form-input::placeholder { color: rgba(255,255,255,0.6); }
        .form-input:focus {
            outline: none;
            border-color: rgba(255,255,255,0.5);
            background: rgba(255,255,255,0.18);
            box-shadow: 0 0 0 3px rgba(255,255,255,0.12);
        }
        .form-input option { color: var(--text); }
        textarea.form-input { resize: vertical; min-height: 100px; }
        .form-submit {
            width: 100%;
            padding: 14px 24px;
            border-radius: 10px;
            background: #fff;
            color: var(--brand-700);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }
        .form-submit:hover {
            background: var(--accent-100);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        }

        /* Fixed bottom CTA */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 16px rgba(22,35,75,0.1);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .fixed-cta.visible { transform: translateY(0); }
        .fixed-cta .fc-text {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-soft);
        }
        .fixed-cta .fc-text strong {
            color: var(--text);
            font-weight: 700;
        }
        .fixed-cta .fc-btn {
            padding: 10px 22px;
            border-radius: 10px;
            background: var(--brand-600);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .fixed-cta .fc-btn:hover {
            background: var(--brand-700);
            transform: translateY(-1px);
        }
        .fc-close {
            width: 32px;
            height: 32px;
            border-radius: 999px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-weak);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .fc-close:hover { background: var(--bg); color: var(--text); }

        /* Footer */
        .site-footer {
            background: var(--brand-950);
            color: rgba(255,255,255,0.82);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand-name {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            opacity: 0.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: rgba(255,255,255,0.5);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.75);
            transition: all var(--transition-fast);
        }
        .footer-col ul a:hover { color: #fff; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            opacity: 0.7;
        }

        /* Misc */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .badge-blue {
            background: var(--brand-50);
            color: var(--brand-700);
        }
        .badge-accent {
            background: var(--accent-50);
            color: var(--accent-600);
        }
        .divider {
            width: 100%;
            height: 1px;
            background: var(--border);
            margin: 0;
        }
        .list-check {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .list-check li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-soft);
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .list-check li::before {
            content: '✓';
            color: var(--brand-500);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* Pain points */
        .pain-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .pain-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 20px 16px;
            transition: all var(--transition-fast);
        }
        .pain-item:hover {
            border-color: var(--brand-200);
            box-shadow: var(--shadow-sm);
        }
        .pain-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-400);
            letter-spacing: -0.03em;
            margin-bottom: 8px;
        }
        .pain-title {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 6px;
        }
        .pain-solution {
            font-size: 0.8rem;
            color: var(--text-weak);
            line-height: 1.55;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container { padding-left: 20px; padding-right: 20px; }
            .hero-grid { grid-template-columns: 1fr; gap: 36px; }
            .hero-stack { height: 420px; max-width: 560px; }
            .cap-grid { grid-template-columns: repeat(2, 1fr); }
            .scene-grid { grid-template-columns: repeat(2, 1fr); }
            .matrix-grid { grid-template-columns: repeat(2, 1fr); }
            .trust-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .cases-grid { grid-template-columns: repeat(2, 1fr); }
            .v-grid { grid-template-columns: repeat(3, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .pain-list { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .form-grid { grid-template-columns: 1fr; gap: 28px; }
        }

        @media (max-width: 768px) {
            .nav-links, .nav-cta-btn { display: none; }
            .hamburger { display: flex; }
            .hero-title { font-size: 1.8rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-stack { height: 340px; }
            .stack-card-main .stack-overlay h3 { font-size: 1rem; }
            .section { padding: 44px 0; }
            .section-title { font-size: 1.4rem; }
            .v-grid { grid-template-columns: repeat(2, 1fr); }
            .cap-grid { grid-template-columns: 1fr 1fr; }
            .scene-grid { grid-template-columns: 1fr; }
            .matrix-grid { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; }
            .cases-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .pain-list { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .form-section { padding: 36px 24px; }
            .form-row { grid-template-columns: 1fr; }
            .journey-step { min-width: 50%; border-bottom: 1px solid var(--border); }
            .journey-step:nth-child(3) { border-right: none; }
            .journey-step:nth-child(4) { border-right: none; border-bottom: none; }
            .journey-step:nth-child(2) { border-right: none; }
            .fixed-cta { padding: 10px 16px; }
            .fc-close { display: none; }
        }

        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hero-title { font-size: 1.5rem; }
            .hero-desc { font-size: 0.9rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; }
            .hero-stats { gap: 16px; }
            .hero-stat-number { font-size: 1.2rem; }
            .hero-stack { height: 280px; }
            .stack-card-side-1 { display: none; }
            .stack-card-main { width: 72%; height: 80%; }
            .stack-card-side-2 { width: 50%; height: 52%; bottom: 0; right: 0; }
            .cap-grid { grid-template-columns: 1fr; }
            .trust-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .v-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
            .section-title { font-size: 1.28rem; }
            .brand-name { font-size: 0.85rem; }
            .brand-sub { font-size: 0.6rem; }
            .form-section { padding: 28px 18px; }
            .journey-step { min-width: 100%; border-right: none !important; border-bottom: 1px solid var(--border); }
            .journey-step:last-child { border-bottom: none; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category2 */
:root {
 --brand-50: #f0f6ff;
 --brand-100: #dce9fd;
 --brand-200: #c0d9fb;
 --brand-300: #94c0f7;
 --brand-400: #619ef1;
 --brand-500: #3d7eea;
 --brand-600: #2b61de;
 --brand-700: #234cbc;
 --brand-800: #203f99;
 --brand-900: #1e387a;
 --brand-950: #16234b;
 --accent-50: #fef8ec;
 --accent-100: #fdeecb;
 --accent-200: #fadb91;
 --accent-300: #f6c257;
 --accent-400: #f2aa2c;
 --accent-500: #eb8a14;
 --accent-600: #d0650e;
 --bg: #f7f9fc;
 --surface: #ffffff;
 --text: #1a2233;
 --text-soft: #4a5568;
 --text-weak: #7a8699;
 --border: #e2e8f0;
 --radius-sm: 8px;
 --radius-md: 14px;
 --radius-lg: 20px;
 --radius-xl: 28px;
 --shadow-sm: 0 1px 3px rgba(22, 35, 75, 0.06), 0 1px 2px rgba(22, 35, 75, 0.04);
 --shadow-md: 0 4px 16px rgba(22, 35, 75, 0.08), 0 2px 4px rgba(22, 35, 75, 0.04);
 --shadow-lg: 0 12px 32px rgba(22, 35, 75, 0.12), 0 4px 8px rgba(22, 35, 75, 0.06);
 --shadow-xl: 0 20px 48px rgba(22, 35, 75, 0.16), 0 8px 16px rgba(22, 35, 75, 0.08);
 --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
 --transition: 240ms cubic-bezier(0.4, 0, 0.2, 1);
 --transition-slow: 360ms cubic-bezier(0.4, 0, 0.2, 1);
 --max-w: 1200px;
 --header-h: 72px;
 --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
 margin: 0;
 font-family: var(--font-sans);
 background: var(--bg);
 color: var(--text);
 line-height: 1.7;
 font-size: 16px;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--brand-600); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
.container {
 width: 100%;
 max-width: var(--max-w);
 margin: 0 auto;
 padding-left: 24px;
 padding-right: 24px;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 100;
 background: rgba(255, 255, 255, 0.92);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border-bottom: 1px solid var(--border);
 height: var(--header-h);
 display: flex;
 align-items: center;
 transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 24px;
 width: 100%;
}
.nav-brand {
 display: flex;
 align-items: center;
 gap: 12px;
 min-width: 0;
}
.brand-mark {
 width: 44px;
 height: 44px;
 border-radius: 12px;
 background: linear-gradient(135deg, var(--brand-600), var(--brand-900));
 display: flex;
 align-items: center;
 justify-content: center;
 color: #fff;
 font-weight: 700;
 font-size: 1.25rem;
 flex-shrink: 0;
 letter-spacing: -0.5px;
 box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
}
.brand-text {
 display: flex;
 flex-direction: column;
 line-height: 1.2;
 min-width: 0;
}
.brand-name {
 font-weight: 700;
 font-size: 1.05rem;
 color: var(--text);
 white-space: nowrap;
 overflow: hidden;
 text-overflow: ellipsis;
 letter-spacing: -0.01em;
}
.brand-sub {
 font-size: 0.72rem;
 color: var(--text-weak);
 font-weight: 500;
 white-space: nowrap;
 letter-spacing: 0.04em;
}
.nav-links {
 display: flex;
 align-items: center;
 gap: 4px;
 list-style: none;
 margin: 0;
 padding: 0;
}
.nav-links a {
 display: flex;
 align-items: center;
 gap: 6px;
 padding: 8px 16px;
 border-radius: 999px;
 font-weight: 500;
 font-size: 0.92rem;
 color: var(--text-soft);
 transition: all var(--transition-fast);
 white-space: nowrap;
}
.nav-links a:hover {
 background: var(--brand-50);
 color: var(--brand-700);
}
.nav-links a.active {
 background: var(--brand-600);
 color: #fff;
 box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
}
.nav-cta {
 display: flex;
 align-items: center;
 gap: 10px;
}
.nav-cta-btn {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 padding: 10px 22px;
 border-radius: 999px;
 background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
 color: #fff;
 font-weight: 600;
 font-size: 0.9rem;
 white-space: nowrap;
 transition: all var(--transition-fast);
 box-shadow: 0 4px 14px rgba(43, 97, 222, 0.3);
}
.nav-cta-btn:hover {
 color: #fff;
 transform: translateY(-1px);
 box-shadow: 0 6px 20px rgba(43, 97, 222, 0.4);
}
.mobile-toggle {
 display: none;
 width: 44px;
 height: 44px;
 border-radius: 12px;
 border: 1px solid var(--border);
 background: var(--surface);
 align-items: center;
 justify-content: center;
 flex-direction: column;
 gap: 5px;
 transition: all var(--transition-fast);
}
.mobile-toggle span {
 display: block;
 width: 20px;
 height: 2px;
 background: var(--text-soft);
 border-radius: 2px;
 transition: all var(--transition-fast);
}
@media (max-width: 860px) {
 .mobile-toggle { display: flex; }
 .nav-cta { display: none; }
 .nav-links {
   position: absolute;
   top: var(--header-h);
   left: 0;
   right: 0;
   background: var(--surface);
   flex-direction: column;
   padding: 16px 24px;
   gap: 8px;
   border-bottom: 1px solid var(--border);
   box-shadow: var(--shadow-lg);
   display: none;
 }
 .nav-links.open { display: flex; }
 .nav-links a { width: 100%; justify-content: center; padding: 12px 16px; }
}
.category-hero {
 background: linear-gradient(135deg, #16234b 0%, #1e387a 44%, #234cbc 100%);
 padding: 72px 0 60px;
 position: relative;
 overflow: hidden;
}
.category-hero::before {
 content: '';
 position: absolute;
 top: -60%;
 right: -15%;
 width: 600px;
 height: 600px;
 border-radius: 50%;
 background: radial-gradient(circle, rgba(61, 126, 234, 0.35), transparent 65%);
 pointer-events: none;
}
.category-hero::after {
 content: '';
 position: absolute;
 bottom: -40%;
 left: -10%;
 width: 500px;
 height: 500px;
 border-radius: 50%;
 background: radial-gradient(circle, rgba(242, 170, 44, 0.2), transparent 65%);
 pointer-events: none;
}
.category-hero .container { position: relative; z-index: 2; }
.hero-badge {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 padding: 6px 16px;
 border-radius: 999px;
 background: rgba(255, 255, 255, 0.12);
 color: #fadb91;
 font-weight: 500;
 font-size: 0.85rem;
 border: 1px solid rgba(255, 255, 255, 0.2);
 margin-bottom: 20px;
}
.hero-badge .dot {
 width: 6px;
 height: 6px;
 border-radius: 50%;
 background: var(--accent-400);
 animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
 0%, 100% { opacity: 1; transform: scale(1); }
 50% { opacity: 0.5; transform: scale(1.5); }
}
.category-hero h1 {
 color: #fff;
 font-size: 2.75rem;
 font-weight: 700;
 line-height: 1.2;
 letter-spacing: -0.02em;
 margin: 0 0 16px;
 max-width: 700px;
}
.category-hero h1 .highlight {
 color: #fadb91;
}
.category-hero .hero-desc {
 color: rgba(255, 255, 255, 0.78);
 font-size: 1.1rem;
 line-height: 1.8;
 max-width: 640px;
 margin: 0 0 28px;
}
.hero-meta-row {
 display: flex;
 align-items: center;
 gap: 28px;
 flex-wrap: wrap;
}
.hero-meta-item {
 display: flex;
 align-items: center;
 gap: 10px;
 color: rgba(255, 255, 255, 0.85);
 font-size: 0.9rem;
 font-weight: 500;
}
.hero-meta-item .meta-icon {
 width: 32px;
 height: 32px;
 border-radius: 10px;
 background: rgba(255, 255, 255, 0.12);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 0.9rem;
}
.hero-cta-row {
 display: flex;
 align-items: center;
 gap: 16px;
 flex-wrap: wrap;
 margin-top: 32px;
}
.hero-cta-primary {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 padding: 14px 32px;
 border-radius: 999px;
 background: linear-gradient(135deg, var(--accent-400), var(--accent-500));
 color: #fff;
 font-weight: 700;
 font-size: 1rem;
 transition: all var(--transition-fast);
 box-shadow: 0 8px 24px rgba(235, 138, 20, 0.4);
}
.hero-cta-primary:hover {
 color: #fff;
 transform: translateY(-2px);
 box-shadow: 0 12px 32px rgba(235, 138, 20, 0.5);
}
.hero-cta-secondary {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 padding: 14px 28px;
 border-radius: 999px;
 background: rgba(255, 255, 255, 0.1);
 color: #fff;
 font-weight: 500;
 font-size: 0.95rem;
 border: 1px solid rgba(255, 255, 255, 0.25);
 transition: all var(--transition-fast);
}
.hero-cta-secondary:hover {
 color: #fff;
 background: rgba(255, 255, 255, 0.2);
}
.section {
 padding: 64px 0;
}
.section-sm { padding: 48px 0; }
.section-label {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 font-size: 0.82rem;
 font-weight: 600;
 color: var(--brand-600);
 letter-spacing: 0.1em;
 text-transform: uppercase;
 margin-bottom: 12px;
}
.section-title {
 font-size: 1.85rem;
 font-weight: 700;
 color: var(--text);
 letter-spacing: -0.01em;
 margin: 0 0 12px;
 line-height: 1.3;
}
.section-desc {
 font-size: 1.05rem;
 color: var(--text-soft);
 line-height: 1.8;
 margin: 0;
 max-width: 680px;
}
.card {
 background: var(--surface);
 border-radius: var(--radius-lg);
 border: 1px solid var(--border);
 box-shadow: var(--shadow-sm);
 transition: all var(--transition);
 overflow: hidden;
}
.card:hover {
 box-shadow: var(--shadow-lg);
 transform: translateY(-3px);
 border-color: var(--brand-200);
}
.card-img {
 width: 100%;
 height: 220px;
 object-fit: cover;
}
.card-body { padding: 24px; }
.card-title { font-size: 1.15rem; font-weight: 700; color: var(--text); margin: 0 0 8px; }
.card-text { font-size: 0.95rem; color: var(--text-soft); line-height: 1.75; margin: 0; }
.tag {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 4px 12px;
 border-radius: 999px;
 font-size: 0.78rem;
 font-weight: 600;
 background: var(--brand-50);
 color: var(--brand-700);
}
.tag-accent {
 background: var(--accent-50);
 color: var(--accent-600);
}
.grid-3 {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 24px;
}
.grid-2 {
 display: grid;
 grid-template-columns: repeat(2, 1fr);
 gap: 24px;
}
.grid-4 {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: 20px;
}
@media (max-width: 1024px) {
 .grid-4 { grid-template-columns: repeat(2, 1fr); }
 .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
 .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
 .category-hero h1 { font-size: 2rem; }
}
.stat-block {
 display: flex;
 align-items: center;
 gap: 16px;
 padding: 20px 24px;
 background: var(--surface);
 border-radius: var(--radius-md);
 border: 1px solid var(--border);
 transition: all var(--transition-fast);
}
.stat-block:hover {
 box-shadow: var(--shadow-md);
 border-color: var(--brand-200);
}
.stat-number {
 font-size: 2rem;
 font-weight: 700;
 color: var(--brand-700);
 letter-spacing: -0.02em;
 line-height: 1;
}
.stat-label {
 font-size: 0.9rem;
 color: var(--text-weak);
 font-weight: 500;
}
.diff-table {
 width: 100%;
 border-collapse: collapse;
 background: var(--surface);
 border-radius: var(--radius-lg);
 overflow: hidden;
 box-shadow: var(--shadow-md);
}
.diff-table th {
 padding: 16px 20px;
 background: var(--brand-900);
 color: #fff;
 font-weight: 600;
 font-size: 0.95rem;
 text-align: left;
}
.diff-table td {
 padding: 14px 20px;
 border-bottom: 1px solid var(--border);
 font-size: 0.92rem;
 color: var(--text-soft);
}
.diff-table tr:last-child td { border-bottom: none; }
.diff-table tr:hover td { background: var(--brand-50); }
.news-item {
 display: flex;
 gap: 16px;
 padding: 20px;
 background: var(--surface);
 border-radius: var(--radius-md);
 border: 1px solid var(--border);
 transition: all var(--transition-fast);
}
.news-item:hover {
 box-shadow: var(--shadow-md);
 border-color: var(--brand-200);
}
.news-img {
 width: 120px;
 height: 90px;
 object-fit: cover;
 border-radius: var(--radius-sm);
 flex-shrink: 0;
}
.news-content { flex: 1; min-width: 0; }
.news-title {
 font-size: 1rem;
 font-weight: 600;
 color: var(--text);
 margin: 0 0 6px;
 line-height: 1.5;
}
.news-meta {
 font-size: 0.82rem;
 color: var(--text-weak);
 display: flex;
 gap: 16px;
 align-items: center;
}
.faq-item {
 background: var(--surface);
 border-radius: var(--radius-md);
 border: 1px solid var(--border);
 margin-bottom: 12px;
 overflow: hidden;
 transition: all var(--transition-fast);
}
.faq-item:hover { border-color: var(--brand-200); }
.faq-q {
 display: flex;
 align-items: center;
 justify-content: space-between;
 padding: 18px 24px;
 cursor: pointer;
 font-weight: 600;
 font-size: 0.98rem;
 color: var(--text);
 gap: 16px;
 transition: all var(--transition-fast);
}
.faq-q:hover { color: var(--brand-700); }
.faq-icon {
 width: 24px;
 height: 24px;
 border-radius: 50%;
 background: var(--brand-50);
 display: flex;
 align-items: center;
 justify-content: center;
 flex-shrink: 0;
 font-weight: 700;
 color: var(--brand-600);
 transition: transform var(--transition-fast);
 font-size: 0.9rem;
}
.faq-q.open .faq-icon { transform: rotate(45deg); background: var(--brand-600); color: #fff; }
.faq-a {
 display: none;
 padding: 0 24px 20px;
 font-size: 0.92rem;
 color: var(--text-soft);
 line-height: 1.8;
}
.faq-a.open { display: block; }
.assurance-bar {
 background: linear-gradient(135deg, var(--brand-950), var(--brand-800));
 border-radius: var(--radius-xl);
 padding: 40px;
 display: flex;
 align-items: center;
 gap: 32px;
 flex-wrap: wrap;
}
.assurance-item {
 display: flex;
 align-items: center;
 gap: 12px;
 color: #fff;
 font-weight: 500;
 font-size: 0.95rem;
}
.assurance-icon {
 width: 40px;
 height: 40px;
 border-radius: 12px;
 background: rgba(255, 255, 255, 0.1);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 1.1rem;
 flex-shrink: 0;
}
.fixed-cta {
 position: fixed;
 bottom: 0;
 left: 0;
 right: 0;
 z-index: 90;
 background: rgba(255, 255, 255, 0.95);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border-top: 1px solid var(--border);
 padding: 12px 24px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 box-shadow: 0 -4px 16px rgba(22, 35, 75, 0.08);
}
.fixed-cta-text {
 font-size: 0.9rem;
 color: var(--text-soft);
 font-weight: 500;
}
.fixed-cta-btn {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 padding: 10px 24px;
 border-radius: 999px;
 background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
 color: #fff;
 font-weight: 600;
 font-size: 0.9rem;
 white-space: nowrap;
 transition: all var(--transition-fast);
 box-shadow: 0 4px 14px rgba(43, 97, 222, 0.3);
}
.fixed-cta-btn:hover {
 color: #fff;
 transform: translateY(-1px);
 box-shadow: 0 6px 20px rgba(43, 97, 222, 0.4);
}
.site-footer {
 background: #16234b;
 color: rgba(255, 255, 255, 0.75);
 padding: 56px 0 24px;
 margin-bottom: 60px;
}
.footer-grid {
 display: grid;
 grid-template-columns: 2fr 1fr 1fr 1fr;
 gap: 40px;
 margin-bottom: 32px;
}
.footer-brand-name {
 font-size: 1.1rem;
 font-weight: 700;
 color: #fff;
 margin-bottom: 12px;
}
.footer-brand-desc {
 font-size: 0.88rem;
 line-height: 1.75;
 color: rgba(255, 255, 255, 0.65);
 margin: 0;
 max-width: 320px;
}
.footer-col h4 {
 font-size: 0.9rem;
 font-weight: 600;
 color: #fff;
 margin: 0 0 16px;
}
.footer-col ul {
 list-style: none;
 margin: 0;
 padding: 0;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
 font-size: 0.88rem;
 color: rgba(255, 255, 255, 0.65);
 transition: color var(--transition-fast);
}
.footer-col ul li a:hover { color: #fff; }
.footer-bottom {
 border-top: 1px solid rgba(255, 255, 255, 0.1);
 padding-top: 20px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 flex-wrap: wrap;
 font-size: 0.82rem;
 color: rgba(255, 255, 255, 0.5);
}
@media (max-width: 860px) {
 .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 520px) {
 .footer-grid { grid-template-columns: 1fr; }
 .footer-bottom { flex-direction: column; text-align: center; }
 .fixed-cta { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
            --brand-50: #f0f6ff;
            --brand-100: #dce9fd;
            --brand-200: #c0d9fb;
            --brand-300: #94c0f7;
            --brand-400: #619ef1;
            --brand-500: #3d7eea;
            --brand-600: #2b61de;
            --brand-700: #234cbc;
            --brand-800: #203f99;
            --brand-900: #1e387a;
            --brand-950: #16234b;
            --accent-50: #fef8ec;
            --accent-100: #fdeecb;
            --accent-200: #fadb91;
            --accent-300: #f6c257;
            --accent-400: #f2aa2c;
            --accent-500: #eb8a14;
            --accent-600: #d0650e;
            --bg: #f7f9fc;
            --surface: #ffffff;
            --text: #1a2233;
            --text-soft: #4a5568;
            --text-weak: #7a8699;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(22, 35, 75, 0.06), 0 1px 2px rgba(22, 35, 75, 0.04);
            --shadow-md: 0 4px 16px rgba(22, 35, 75, 0.08), 0 2px 4px rgba(22, 35, 75, 0.04);
            --shadow-lg: 0 12px 32px rgba(22, 35, 75, 0.12), 0 4px 8px rgba(22, 35, 75, 0.06);
            --shadow-xl: 0 20px 48px rgba(22, 35, 75, 0.16), 0 8px 16px rgba(22, 35, 75, 0.08);
            --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 240ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 360ms cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --header-h: 72px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--brand-600);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input, textarea, select {
            font-family: inherit;
            font-size: 1rem;
        }
        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .brand-mark {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-900));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.25rem;
            flex-shrink: 0;
            letter-spacing: -0.5px;
            box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 0;
        }
        .brand-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            letter-spacing: -0.01em;
        }
        .brand-sub {
            font-size: 0.72rem;
            color: var(--text-weak);
            font-weight: 500;
            white-space: nowrap;
            letter-spacing: 0.04em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: var(--brand-50);
            color: var(--brand-700);
        }
        .nav-links a.active {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 4px 12px rgba(43, 97, 222, 0.3);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-cta .btn-primary {
            padding: 10px 20px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            box-shadow: 0 4px 14px rgba(43, 97, 222, 0.32);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-cta .btn-primary:hover {
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            box-shadow: 0 6px 20px rgba(43, 97, 222, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--surface);
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-soft);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-toggle:hover {
            border-color: var(--brand-300);
            color: var(--brand-600);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--surface);
                border-bottom: 1px solid var(--border);
                padding: 12px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 0.95rem;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-cta .btn-primary {
                display: none;
            }
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 6px 18px rgba(43, 97, 222, 0.32);
            transition: all var(--transition-fast);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            box-shadow: 0 8px 24px rgba(43, 97, 222, 0.4);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            background: var(--surface);
            color: var(--brand-700);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid var(--brand-200);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--brand-400);
            color: var(--brand-800);
            background: var(--brand-50);
            transform: translateY(-2px);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--accent-400), var(--accent-600));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 6px 18px rgba(208, 101, 14, 0.3);
            transition: all var(--transition-fast);
        }
        .btn-accent:hover {
            background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
            box-shadow: 0 8px 24px rgba(208, 101, 14, 0.4);
            color: #fff;
            transform: translateY(-2px);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: var(--brand-50);
            color: var(--brand-700);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.03em;
            border: 1px solid var(--brand-100);
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-soft);
            line-height: 1.75;
            margin: 0;
            max-width: 720px;
        }
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-200);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.78rem;
            letter-spacing: 0.01em;
        }
        .badge-brand {
            background: var(--brand-50);
            color: var(--brand-700);
            border: 1px solid var(--brand-100);
        }
        .badge-accent {
            background: var(--accent-50);
            color: var(--accent-600);
            border: 1px solid var(--accent-100);
        }
        .badge-green {
            background: #ecfdf5;
            color: #047857;
            border: 1px solid #d1fae5;
        }
        .badge-red {
            background: #fef2f2;
            color: #dc2626;
            border: 1px solid #fee2e2;
        }
        .section-padding {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-soft);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--brand-600);
        }
        .breadcrumb .sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--brand-700);
            font-weight: 500;
        }
        .page-banner {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl);
            min-height: 280px;
            display: flex;
            align-items: center;
            padding: 48px 40px;
            background-size: cover;
            background-position: center;
            margin-bottom: 48px;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 35, 75, 0.82) 0%, rgba(30, 56, 122, 0.6) 55%, rgba(43, 97, 222, 0.35) 100%);
        }
        .page-banner-content {
            position: relative;
            z-index: 1;
            color: #fff;
            max-width: 680px;
        }
        .page-banner-content h1 {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.2;
            margin: 0 0 12px;
            letter-spacing: -0.02em;
            color: #fff;
        }
        .page-banner-content p {
            font-size: 1.05rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 20px;
        }
        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        @media (max-width: 768px) {
            .page-banner {
                min-height: 220px;
                padding: 32px 24px;
                border-radius: var(--radius-lg);
            }
            .page-banner-content h1 {
                font-size: 1.6rem;
            }
            .page-banner-content p {
                font-size: 0.92rem;
            }
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }
        .process-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px 24px;
            text-align: center;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .process-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-200);
            transform: translateY(-4px);
        }
        .process-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(43, 97, 222, 0.25);
        }
        .process-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text);
        }
        .process-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.65;
        }
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .criteria-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .criteria-grid {
                grid-template-columns: 1fr;
            }
        }
        .criteria-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .criteria-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-200);
            transform: translateY(-2px);
        }
        .criteria-icon {
            font-size: 1.8rem;
            color: var(--brand-600);
            line-height: 1;
        }
        .criteria-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 0;
            color: var(--text);
        }
        .criteria-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.65;
        }
        .criteria-score {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-weak);
            font-weight: 500;
        }
        .score-bar {
            width: 80px;
            height: 6px;
            background: var(--border);
            border-radius: 999px;
            overflow: hidden;
        }
        .score-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--brand-400), var(--brand-600));
            border-radius: 999px;
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-item {
            display: flex;
            gap: 24px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .article-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-200);
            transform: translateY(-2px);
        }
        .article-thumb {
            width: 200px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            object-fit: cover;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .article-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 0;
            color: var(--text);
            line-height: 1.4;
        }
        .article-content p {
            font-size: 0.9rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }
        @media (max-width: 768px) {
            .article-item {
                flex-direction: column;
                gap: 16px;
            }
            .article-thumb {
                width: 100%;
                height: 180px;
            }
        }
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 1024px) {
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .gallery-grid {
                grid-template-columns: 1fr;
            }
        }
        .gallery-item {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4/3;
        }
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .gallery-item:hover img {
            transform: scale(1.05);
        }
        .gallery-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(22, 35, 75, 0.7) 0%, transparent 60%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .gallery-item:hover .gallery-overlay {
            opacity: 1;
        }
        .gallery-overlay span {
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .feedback-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feedback-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-200);
        }
        .feedback-stars {
            display: flex;
            gap: 2px;
            color: var(--accent-400);
            font-size: 1rem;
            letter-spacing: 2px;
        }
        .feedback-text {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.65;
            margin: 0;
        }
        .feedback-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--text-weak);
            font-weight: 500;
        }
        .feedback-author .avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-100);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--brand-700);
            font-weight: 700;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--brand-200);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--brand-700);
        }
        .faq-toggle-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--brand-50);
            color: var(--brand-600);
            font-size: 0.8rem;
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .cta-panel {
            background: linear-gradient(135deg, var(--brand-800), var(--brand-950));
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(97, 158, 241, 0.3) 0%, transparent 70%);
        }
        .cta-panel-content {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 280px;
        }
        .cta-panel-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
        }
        .cta-panel-content p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            line-height: 1.7;
            max-width: 480px;
        }
        .cta-panel-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .cta-panel {
                padding: 36px 28px;
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
            .cta-panel-content h2 {
                font-size: 1.4rem;
            }
        }
        .timer-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            background: linear-gradient(90deg, var(--accent-50), #fff);
            border: 1px solid var(--accent-100);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .timer-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-600);
            white-space: nowrap;
        }
        .timer-digits {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .timer-digit {
            background: var(--accent-500);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 4px 10px;
            border-radius: 6px;
            min-width: 36px;
            text-align: center;
        }
        .timer-sep {
            font-weight: 700;
            color: var(--accent-500);
            font-size: 1.1rem;
        }
        .timer-note {
            font-size: 0.8rem;
            color: var(--text-weak);
            white-space: nowrap;
        }
        .footer-section {
            background: #0f1729;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-brand-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            margin: 0 0 16px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 420px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 520px) {
            .footer-section {
                padding: 36px 0 16px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }
        .region-chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }
        .region-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: all var(--transition-fast);
        }
        .region-chip:hover {
            border-color: var(--brand-300);
            color: var(--brand-700);
            background: var(--brand-50);
        }
        .data-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .data-item {
            text-align: left;
        }
        .data-item .data-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-600);
            line-height: 1.2;
        }
        .data-item .data-label {
            font-size: 0.8rem;
            color: var(--text-weak);
            font-weight: 500;
        }