/* roulang page: index */
:root {
            --primary: #1A3B6B;
            --primary-hover: #142D54;
            --primary-light: #2D6DA4;
            --primary-pale: #E8EFF7;
            --accent: #2D6DA4;
            --bg: #F8FAFC;
            --bg-alt: #F1F5F9;
            --card: #FFFFFF;
            --text: #334155;
            --text-weak: #64748B;
            --text-strong: #1E293B;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 2px 12px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.04);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }

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

        button, input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

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

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
            background: rgba(255,255,255,0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.06);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            border-bottom: 1px solid transparent;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
            height: 100%;
        }
        @media (max-width: 768px) {
            .nav-inner {
                padding: 0 18px;
            }
        }
        .nav-logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }
        .nav-logo:hover {
            color: var(--primary-hover);
        }
        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background: var(--primary-pale);
            color: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            transition: background var(--transition), color var(--transition);
            flex-shrink: 0;
        }
        .nav-search-btn:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: background var(--transition), box-shadow var(--transition);
            box-shadow: 0 2px 8px rgba(26,59,107,0.18);
        }
        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(26,59,107,0.28);
            color: #fff;
        }
        @media (max-width: 768px) {
            .nav-cta {
                display: none;
            }
        }
        .nav-hamburger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            z-index: 101;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .nav-hamburger {
                display: flex;
            }
        }
        .nav-hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .nav-hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .nav-mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            padding: 16px 0;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
        }
        .nav-mobile-menu.open {
            display: flex;
        }
        .nav-mobile-menu a {
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition);
            border-radius: 0;
        }
        .nav-mobile-menu a:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .nav-mobile-menu .nav-cta-mobile {
            margin: 8px 28px;
            padding: 12px 24px;
            border-radius: var(--radius);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            display: block;
        }
        @media (min-width: 769px) {
            .nav-mobile-menu {
                display: none !important;
            }
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
            margin-top: 0;
            padding-top: var(--nav-height);
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,59,107,0.55) 0%, rgba(26,59,107,0.35) 40%, rgba(15,30,55,0.62) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 50%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            padding: 60px 28px 80px;
            max-width: 780px;
            width: 100%;
        }
        @media (max-width: 768px) {
            .hero-content {
                padding: 40px 18px 60px;
            }
        }
        .hero-badge {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255,255,255,0.18);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(255,255,255,0.25);
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(255,255,255,0.88);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .hero-subtitle {
                font-size: 15px;
                margin-bottom: 22px;
            }
        }
        .hero-countdown-bar {
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255,255,255,0.28);
            border-radius: var(--radius-xl);
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        @media (max-width: 768px) {
            .hero-countdown-bar {
                padding: 16px 14px;
                gap: 8px;
                border-radius: var(--radius-lg);
            }
        }
        .countdown-label {
            color: rgba(255,255,255,0.8);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            white-space: nowrap;
            margin-right: 4px;
        }
        .countdown-unit {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 52px;
        }
        .countdown-num {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            font-family: "SF Mono", "Consolas", "Monaco", monospace;
            letter-spacing: -0.02em;
        }
        @media (max-width: 768px) {
            .countdown-num {
                font-size: 26px;
            }
        }
        .countdown-sep {
            font-size: 28px;
            color: rgba(255,255,255,0.5);
            font-weight: 300;
            line-height: 1;
            padding-bottom: 14px;
        }
        @media (max-width: 768px) {
            .countdown-sep {
                font-size: 20px;
                padding-bottom: 10px;
            }
        }
        .countdown-word {
            font-size: 11px;
            color: rgba(255,255,255,0.7);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 4px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 20px;
        }
        .hero-btn-primary {
            padding: 14px 32px;
            border-radius: var(--radius);
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            white-space: nowrap;
        }
        .hero-btn-primary:hover {
            background: #f0f4f8;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.2);
            color: var(--primary-hover);
        }
        .hero-btn-outline {
            padding: 14px 32px;
            border-radius: var(--radius);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid rgba(255,255,255,0.6);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .hero-btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 520px) {
            .hero-btn-primary,
            .hero-btn-outline {
                width: 100%;
                text-align: center;
                padding: 14px 20px;
                font-size: 15px;
            }
        }

        /* ========== SECTIONS ========== */
        section {
            padding: var(--section-gap) 0;
        }
        @media (max-width: 768px) {
            section {
                padding: var(--section-gap-mobile) 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        @media (max-width: 768px) {
            .section-header {
                margin-bottom: 32px;
            }
        }
        .section-label {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 50px;
            background: var(--primary-pale);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 22px;
            }
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 28px;
            transition: box-shadow var(--transition-slow), transform var(--transition-slow);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* ========== GRID ========== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-3 {
                grid-template-columns: 1fr;
            }
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(26,59,107,0.18);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(26,59,107,0.28);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-pale);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: var(--radius-lg);
        }

        /* ========== BADGE / TAG ========== */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            background: var(--primary-pale);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-hot {
            background: #FEF2F2;
            color: #DC2626;
        }
        .tag-new {
            background: #ECFDF5;
            color: #059669;
        }

        /* ========== STATS / DATA ========== */
        .stat-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 28px 24px;
            text-align: center;
            transition: box-shadow var(--transition-slow);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .stat-number {
            font-size: 44px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
        }

        /* ========== PROGRESS / STEPS ========== */
        .steps-row {
            display: flex;
            gap: 0;
            align-items: flex-start;
            position: relative;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding-bottom: 8px;
        }
        @media (max-width: 768px) {
            .steps-row {
                flex-wrap: wrap;
                gap: 16px;
            }
        }
        .step-item {
            flex: 1;
            min-width: 180px;
            text-align: center;
            position: relative;
            padding: 0 12px;
        }
        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin: 0 auto 14px;
            border: 3px solid var(--primary);
            position: relative;
            z-index: 2;
            transition: all var(--transition);
        }
        .step-item:hover .step-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26,59,107,0.3);
        }
        .step-line {
            position: absolute;
            top: 28px;
            left: 50%;
            right: -50%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }
        .step-item:last-child .step-line {
            display: none;
        }
        @media (max-width: 768px) {
            .step-line {
                display: none;
            }
        }
        .step-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ========== GUARANTEE BAR ========== */
        .guarantee-bar {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-around;
            align-items: center;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 140px;
        }
        .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .guarantee-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            white-space: nowrap;
        }
        .guarantee-sub {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ========== SELLING POINTS 3 ========== */
        .selling-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }
        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        }
        .selling-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-6px);
        }
        .selling-card .icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-pale);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
        }
        .selling-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .selling-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* ========== MEDIA SCROLL ========== */
        .media-scroll-wrap {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 8px 4px 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            cursor: grab;
        }
        .media-scroll-wrap::-webkit-scrollbar {
            height: 6px;
        }
        .media-scroll-wrap::-webkit-scrollbar-track {
            background: var(--bg-alt);
            border-radius: 3px;
        }
        .media-scroll-wrap::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .media-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition-slow);
            cursor: pointer;
        }
        .media-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        @media (max-width: 520px) {
            .media-card {
                flex: 0 0 240px;
            }
        }
        .media-card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            background: var(--bg-alt);
        }
        .media-card-body {
            padding: 16px 18px;
        }
        .media-card-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .media-card-body p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ========== NEWS / INFO ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: baseline;
            gap: 14px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-weak);
            white-space: nowrap;
            font-weight: 500;
            min-width: 60px;
        }
        .news-title-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-strong);
            line-height: 1.4;
            transition: color var(--transition);
        }
        .news-title-link:hover {
            color: var(--primary-light);
        }
        .news-sidebar {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        @media (max-width: 1024px) {
            .news-sidebar {
                position: static;
            }
        }
        .news-sidebar h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 14px;
        }
        .news-sidebar-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius);
            margin-bottom: 12px;
            background: var(--bg-alt);
        }
        .news-sidebar p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .news-sidebar .btn {
            width: 100%;
            text-align: center;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: background var(--transition);
            line-height: 1.4;
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-arrow {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition);
            color: var(--text-weak);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            border-radius: 0;
        }
        .cta-section .section-title {
            color: #fff;
            font-size: 28px;
            margin-bottom: 8px;
        }
        @media (max-width: 768px) {
            .cta-section .section-title {
                font-size: 22px;
            }
        }
        .cta-section .section-desc {
            color: rgba(255,255,255,0.8);
            margin-bottom: 28px;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            padding: 16px 40px;
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            transition: all var(--transition);
        }
        .cta-section .btn:hover {
            background: #f0f4f8;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.25);
            color: var(--primary-hover);
        }
        .cta-section .cta-note {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            margin-top: 14px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.15);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            transition: color var(--transition);
            line-height: 1.6;
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-col p {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            line-height: 1.6;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }

        /* ========== RESPONSIVE FINE-TUNING ========== */
        @media (max-width: 768px) {
            .hero-countdown-bar {
                flex-wrap: wrap;
                justify-content: center;
            }
            .countdown-sep {
                display: none;
            }
            .countdown-label {
                width: 100%;
                text-align: center;
                margin-bottom: 4px;
            }
            .guarantee-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .steps-row {
                flex-direction: column;
                align-items: center;
                gap: 20px;
            }
            .step-item {
                min-width: auto;
                max-width: 300px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 22px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .stat-number {
                font-size: 32px;
            }
            .countdown-num {
                font-size: 22px;
            }
            .countdown-unit {
                min-width: 40px;
            }
        }