/* roulang page: index */
:root {
            --bg-deepest: #080F1A;
            --bg-secondary: #0C1729;
            --bg-dark: #0A1628;
            --bg-footer: #060E18;
            --accent-grass: #00C853;
            --accent-glow: #00E676;
            --accent-dark: #00B050;
            --text-primary: #F0F4F8;
            --text-muted: #8899AA;
            --text-dim: #667788;
            --glass-border: rgba(0, 200, 83, 0.18);
            --glass-border-hover: rgba(0, 230, 118, 0.4);
            --glass-bg: rgba(255, 255, 255, 0.025);
            --divider: rgba(255, 255, 255, 0.06);
            --glow-soft: rgba(0, 230, 118, 0.15);
            --glow-medium: rgba(0, 230, 118, 0.45);
            --glow-strong: rgba(0, 230, 118, 0.7);
            --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
            --transition-smooth: 0.35s cubic-bezier(0.23, 1, 0.32, 1);
            --transition-fast: 0.3s ease;
            --radius-card: 16px;
            --radius-btn: 28px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            background-color: var(--bg-deepest);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        .font-num {
            font-family: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        .container-page {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 767px) {
            .container-page {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航栏 ===== */
        .nav-glass {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 15, 26, 0.55);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            transition: background var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .nav-scrolled {
            background: rgba(8, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 200, 83, 0.22);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-glow);
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }
        .nav-link:hover {
            color: var(--accent-glow);
        }
        .nav-link:hover::after {
            width: 100%;
        }

        .btn-nav-cta {
            display: inline-block;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent-grass), var(--accent-dark));
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 0 18px var(--glow-medium);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-nav-cta:hover {
            box-shadow: 0 0 32px var(--glow-strong);
            transform: scale(1.05);
        }

        /* 汉堡菜单 */
        .hamburger-line {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--accent-glow);
            border-radius: 2px;
            transition: all var(--transition-fast);
            margin: 5px 0;
        }
        .hamburger-open .hamburger-line:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger-open .hamburger-line:nth-child(2) {
            opacity: 0;
        }
        .hamburger-open .hamburger-line:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            max-width: 85vw;
            height: 100vh;
            height: 100dvh;
            background: rgba(8, 15, 26, 0.98);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            z-index: 999;
            transform: translateX(100%);
            transition: transform var(--transition-smooth);
            padding: 80px 32px 40px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            border-left: 1px solid var(--glass-border);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-fast);
        }
        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-link {
            display: block;
            font-size: 17px;
            color: var(--text-primary);
            padding: 12px 0;
            border-bottom: 1px solid var(--divider);
            transition: color var(--transition-fast);
        }
        .drawer-link:hover {
            color: var(--accent-glow);
        }
        .drawer-cta {
            margin-top: 20px;
            display: block;
            text-align: center;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent-grass), var(--accent-dark));
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 0 20px var(--glow-medium);
            transition: all var(--transition-fast);
        }
        .drawer-cta:hover {
            box-shadow: 0 0 36px var(--glow-strong);
            transform: scale(1.03);
        }

        /* ===== Hero ===== */
        #hero {
            min-height: 100vh;
            min-height: 100dvh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: var(--bg-deepest);
        }
        #hero::before {
            content: '';
            position: absolute;
            top: -15%;
            right: -10%;
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.07) 0%, rgba(0, 200, 83, 0.02) 40%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }
        #hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            left: -5%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.04) 0%, transparent 65%);
            pointer-events: none;
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 48px;
            width: 100%;
        }
        .hero-left {
            flex: 0 0 54%;
        }
        .hero-right {
            flex: 0 0 42%;
            position: relative;
        }
        .hero-right img {
            border-radius: 20px;
            width: 100%;
            height: auto;
            box-shadow: 0 0 60px rgba(0, 200, 83, 0.12), 0 8px 40px rgba(0, 0, 0, 0.5);
            border: 1px solid var(--glass-border);
        }
        .hero-right::after {
            content: '';
            position: absolute;
            inset: -6px;
            border-radius: 24px;
            border: 2px solid rgba(0, 230, 118, 0.25);
            pointer-events: none;
            animation: heroGlowPulse 3s ease-in-out infinite;
        }
        @keyframes heroGlowPulse {
            0%,
            100% {
                border-color: rgba(0, 230, 118, 0.25);
                box-shadow: 0 0 30px rgba(0, 230, 118, 0.08);
            }
            50% {
                border-color: rgba(0, 230, 118, 0.5);
                box-shadow: 0 0 50px rgba(0, 230, 118, 0.18);
            }
        }
        .hero-h1 {
            font-size: 50px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 18px;
        }
        .hero-h1 .highlight {
            background: linear-gradient(135deg, #fff 0%, #e0ffe0 30%, var(--accent-glow) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 40px rgba(0, 230, 118, 0.3);
            position: relative;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 36px;
            line-height: 1.6;
            max-width: 460px;
        }
        .btn-glow {
            display: inline-block;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent-grass), var(--accent-dark));
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.03em;
            box-shadow: 0 0 24px var(--glow-medium);
            transition: all var(--transition-fast);
            text-align: center;
        }
        .btn-glow:hover {
            box-shadow: 0 0 40px var(--glow-strong);
            transform: scale(1.04);
        }
        .btn-outline {
            display: inline-block;
            padding: 13px 34px;
            border-radius: var(--radius-btn);
            background: transparent;
            border: 1.5px solid var(--accent-grass);
            color: var(--accent-grass);
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            text-align: center;
        }
        .btn-outline:hover {
            background: rgba(0, 200, 83, 0.1);
            border-color: var(--accent-glow);
            color: var(--accent-glow);
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.2);
        }

        @media (max-width: 1023px) {
            .hero-content {
                flex-direction: column;
                gap: 32px;
                text-align: center;
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .hero-left {
                flex: 0 0 auto;
                order: 2;
            }
            .hero-right {
                flex: 0 0 auto;
                order: 1;
                max-width: 380px;
                margin: 0 auto;
            }
            .hero-h1 {
                font-size: 34px;
            }
            .hero-subtitle {
                font-size: 16px;
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-left .flex {
                justify-content: center;
            }
        }
        @media (max-width: 767px) {
            .hero-h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-right {
                max-width: 280px;
            }
            .btn-glow,
            .btn-outline {
                width: 100%;
                display: block;
                padding: 14px 24px;
                font-size: 15px;
            }
            .hero-left .flex {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== 区块通用 ===== */
        .section-padding {
            padding: 100px 0;
        }
        @media (max-width: 767px) {
            .section-padding {
                padding: 56px 0;
            }
        }
        .section-h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 48px;
            letter-spacing: -0.01em;
        }
        .section-h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 28px;
            background: var(--accent-glow);
            border-radius: 2px;
            flex-shrink: 0;
            box-shadow: 0 0 10px rgba(0, 230, 118, 0.5);
        }
        @media (max-width: 767px) {
            .section-h2 {
                font-size: 26px;
                margin-bottom: 32px;
                gap: 10px;
            }
            .section-h2::before {
                height: 22px;
                width: 3px;
            }
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--card-shadow), 0 0 0 1px rgba(0, 200, 83, 0.04) inset;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            opacity: 0;
            box-shadow: 0 0 30px var(--glow-soft);
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }
        .glass-card:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 30px var(--glow-soft), 0 8px 32px rgba(0, 0, 0, 0.5);
            transform: translateY(-4px);
        }
        .glass-card:hover::before {
            opacity: 1;
        }

        /* ===== 痛点区 ===== */
        #pain-points {
            background: var(--bg-secondary);
        }
        .pain-card-row {
            display: flex;
            align-items: center;
            gap: 40px;
            margin-bottom: 40px;
        }
        .pain-card-row.reverse {
            flex-direction: row-reverse;
        }
        .pain-text {
            flex: 1;
            min-width: 0;
        }
        .pain-img-wrap {
            flex: 0 0 340px;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .pain-img-wrap img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .pain-card-title {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .pain-card-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        @media (max-width: 1023px) {
            .pain-card-row,
            .pain-card-row.reverse {
                flex-direction: column;
                gap: 20px;
            }
            .pain-img-wrap {
                flex: 0 0 auto;
                width: 100%;
                max-width: 400px;
            }
            .pain-img-wrap img {
                height: 180px;
            }
        }
        @media (max-width: 767px) {
            .pain-img-wrap img {
                height: 150px;
            }
            .pain-card-title {
                font-size: 18px;
            }
        }

        /* ===== 解决方案区 ===== */
        #solution {
            background: var(--bg-deepest);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 28px;
            align-items: start;
        }
        .solution-main-card {
            grid-row: span 2;
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 36px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .solution-main-card:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 30px var(--glow-soft), 0 8px 32px rgba(0, 0, 0, 0.5);
            transform: translateY(-4px);
        }
        .solution-sub-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition-smooth);
        }
        .solution-sub-card:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 30px var(--glow-soft), 0 8px 32px rgba(0, 0, 0, 0.5);
            transform: translateY(-4px);
        }
        .solution-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 200, 83, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 22px;
            color: var(--accent-glow);
            box-shadow: 0 0 14px rgba(0, 230, 118, 0.25);
        }
        .solution-card-title {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .solution-card-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .solution-feature-list {
            list-style: none;
            padding: 0;
            margin-top: 14px;
        }
        .solution-feature-list li {
            padding-left: 20px;
            position: relative;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 6px;
            line-height: 1.6;
        }
        .solution-feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-glow);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }
        @media (max-width: 1023px) {
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .solution-main-card {
                grid-row: span 1;
            }
        }
        @media (max-width: 767px) {
            .solution-main-card {
                padding: 24px;
            }
            .solution-sub-card {
                padding: 22px;
            }
            .solution-card-title {
                font-size: 18px;
            }
        }

        /* ===== 成果数据区 ===== */
        #results {
            background: var(--bg-dark);
            text-align: center;
        }
        #results .section-h2 {
            justify-content: center;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            padding: 24px;
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent-glow);
            text-shadow: 0 0 28px rgba(0, 230, 118, 0.5);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }
        @media (max-width: 1023px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 32px;
            }
        }
        @media (max-width: 767px) {
            .stat-number {
                font-size: 28px;
            }
            .stat-label {
                font-size: 13px;
            }
        }

        /* ===== 客户证言区 ===== */
        #testimonials {
            background: var(--bg-deepest);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .testimonial-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .testimonial-card:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 30px var(--glow-soft), 0 8px 32px rgba(0, 0, 0, 0.5);
            transform: translateY(-4px);
        }
        .testimonial-card.featured {
            margin-top: -20px;
        }
        .testimonial-quote-icon {
            font-size: 40px;
            color: rgba(0, 230, 118, 0.3);
            line-height: 1;
            margin-bottom: 10px;
            font-family: Georgia, serif;
        }
        .testimonial-text {
            font-size: 15px;
            color: #c0cdd8;
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
        }
        .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
        }
        .testimonial-role {
            font-size: 12px;
            color: var(--text-muted);
        }
        @media (max-width: 1023px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .testimonial-card.featured {
                margin-top: 0;
            }
        }
        @media (max-width: 767px) {
            .testimonial-card {
                padding: 22px;
            }
            .testimonial-text {
                font-size: 14px;
            }
        }

        /* ===== CTA 区 ===== */
        #cta {
            background: var(--bg-dark);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        #cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(0, 200, 83, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        #cta .container-page {
            position: relative;
            z-index: 2;
        }
        .cta-h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            margin-bottom: 32px;
        }
        .cta-note {
            font-size: 13px;
            color: var(--text-dim);
            margin-top: 16px;
        }
        @media (max-width: 767px) {
            .cta-h2 {
                font-size: 26px;
            }
            .cta-subtitle {
                font-size: 15px;
            }
        }
        .btn-cta-large {
            display: inline-block;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent-grass), var(--accent-dark));
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.04em;
            box-shadow: 0 0 32px var(--glow-medium);
            transition: all var(--transition-fast);
            text-align: center;
        }
        .btn-cta-large:hover {
            box-shadow: 0 0 50px var(--glow-strong);
            transform: scale(1.05);
        }
        @media (max-width: 767px) {
            .btn-cta-large {
                width: 100%;
                display: block;
                padding: 15px 32px;
                font-size: 16px;
            }
        }

        /* ===== FAQ ===== */
        #faq {
            background: var(--bg-deepest);
        }
        .faq-item {
            border-bottom: 1px solid var(--divider);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 4px;
            background: transparent;
            color: #fff;
            font-size: 16px;
            font-weight: 500;
            text-align: left;
            cursor: pointer;
            min-height: 48px;
            transition: color var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-glow);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-glow);
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition-fast);
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            background: rgba(0, 200, 83, 0.25);
            transform: rotate(45deg);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.3);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            padding: 0 4px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 4px 18px;
        }
        @media (max-width: 767px) {
            .faq-question {
                font-size: 15px;
                padding: 16px 2px;
                min-height: 48px;
            }
            .faq-icon {
                width: 26px;
                height: 26px;
                font-size: 16px;
            }
        }

        /* ===== 页脚 ===== */
        #footer {
            background: var(--bg-footer);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(0, 200, 83, 0.15);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 36px;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-logo-text .hl-green {
            color: var(--accent-glow);
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.6;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-glow);
        }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid var(--divider);
            text-align: center;
            font-size: 12px;
            color: var(--text-dim);
        }
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            #footer {
                padding: 40px 0 20px;
            }
        }

        /* ===== 滚动渐显动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 格子背景纹理（用于CTA区） */
        .grid-texture {
            position: absolute;
            inset: 0;
            pointer-events: none;
            opacity: 0.025;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: 1;
        }