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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f8fafc;
            color: #0f172a;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* ===== 顶部导航 ===== */
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 16px;
            max-width: 1200px;
            margin: 0 auto;
            background: transparent;
            flex-wrap: wrap;
            gap: 12px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #0f172a;
        }

        .logo a {
            text-decoration: none;
            color: inherit;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo i {
            color: #3b82f6;
            font-size: 28px;
        }

        .logo img {
            max-height: 40px;
            width: auto;
        }

        .nav-cta {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.2s;
        }

        .nav-cta:hover {
            background: #1e293b;
        }

        /* ===== 主容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px 60px;
        }

        /* ===== Hero 区域 ===== */
        .hero {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 40px;
            padding: 30px 0 50px;
        }

        .hero-text {
            flex: 1 1 50%;
            min-width: 280px;
        }

        .hero-badge {
            display: inline-block;
            background: #dbeafe;
            color: #1d4ed8;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 100px;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }

        .hero-text h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .hero-text h1 .highlight {
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-text p {
            font-size: 18px;
            color: #475569;
            max-width: 500px;
            margin-bottom: 28px;
        }

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

        .btn-primary {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            background: #1e293b;
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline {
            background: transparent;
            color: #0f172a;
            border: 2px solid #e2e8f0;
            padding: 12px 32px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: border-color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            border-color: #94a3b8;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .hero-stats .stat-item {
            text-align: left;
        }

        .hero-stats .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: #0f172a;
        }

        .hero-stats .stat-label {
            font-size: 14px;
            color: #64748b;
        }

        /* Hero 右侧插图 */
        .hero-visual {
            flex: 1 1 40%;
            min-width: 260px;
            background: #eef2ff;
            border-radius: 32px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-visual .chart-wrapper {
            max-width: 300px;
            margin: 0 auto;
        }

        .hero-visual .floating-badge {
            display: inline-block;
            background: #fff;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            margin-top: 16px;
        }

        .hero-visual .floating-badge i {
            color: #22c55e;
            margin-right: 6px;
        }

        /* ===== 合作平台 Logo 条 ===== */
        .platforms {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 32px 48px;
            padding: 30px 0 20px;
            border-top: 1px solid #e2e8f0;
            margin-top: 10px;
        }

        .platforms span {
            font-size: 15px;
            font-weight: 500;
            color: #64748b;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .platforms span i {
            font-size: 22px;
            color: #0f172a;
        }

        /* ===== 服务卡片区（我们的服务） ===== */
        .section-title {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 700;
            text-align: center;
            margin: 50px 0 12px;
            letter-spacing: -0.5px;
        }

        .section-sub {
            text-align: center;
            color: #64748b;
            font-size: 17px;
            max-width: 700px;
            margin: 0 auto 40px;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }

        .service-card {
            background: #fff;
            border-radius: 24px;
            padding: 28px 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #f1f5f9;
            transition: transform 0.2s, box-shadow 0.2s;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
        }

        .service-card .card-icon {
            font-size: 28px;
            color: #3b82f6;
            margin-bottom: 12px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .service-card .card-desc {
            font-size: 15px;
            color: #475569;
            margin-bottom: 14px;
            line-height: 1.5;
        }

        .service-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            flex: 1;
        }

        .service-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: #1e293b;
            padding: 4px 0;
            border-bottom: 1px dashed #f1f5f9;
        }

        .service-card ul li:last-child {
            border-bottom: none;
        }

        .service-card ul li i {
            color: #22c55e;
            font-size: 16px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        /* ===== 广告账户开户 ===== */
        .account-section {
            margin-top: 60px;
        }

        .account-platforms {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-bottom: 36px;
        }

        .account-platforms .platform-item {
            background: #fff;
            border-radius: 20px;
            padding: 20px 32px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2ff;
            text-align: center;
            min-width: 120px;
            transition: transform 0.2s;
        }

        .account-platforms .platform-item:hover {
            transform: translateY(-4px);
        }

        .account-platforms .platform-item i {
            font-size: 36px;
            color: #3b82f6;
            display: block;
            margin-bottom: 6px;
        }

        .account-platforms .platform-item span {
            font-weight: 600;
            font-size: 16px;
            color: #0f172a;
        }

        .account-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }

        .account-card {
            background: #fff;
            border-radius: 20px;
            padding: 24px 20px;
            border: 1px solid #f1f5f9;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
        }

        .account-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: #0f172a;
        }

        .account-card h4 i {
            color: #3b82f6;
            font-size: 20px;
        }

        .account-card ul {
            list-style: none;
            padding: 0;
        }

        .account-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: #475569;
            padding: 4px 0;
            border-bottom: 1px dashed #f8fafc;
        }

        .account-card ul li:last-child {
            border-bottom: none;
        }

        .account-card ul li i {
            color: #22c55e;
            font-size: 14px;
            margin-top: 3px;
        }

        .industry-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #e2e8f0;
        }

        .industry-tags .tag {
            background: #eef2ff;
            color: #1d4ed8;
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
        }

        /* ===== 新闻栏目 - 图文样式 ===== */
        .news-section {
            margin-top: 60px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            margin-top: 20px;
        }

        .news-card {
            background: #fff;
            border-radius: 24px;
            border: 1px solid #f1f5f9;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
            overflow: hidden;
            display: flex;
            flex-direction: row;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        }

        .news-card .news-image {
            flex: 0 0 280px;
            overflow: hidden;
            background: #eef2ff;
        }

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

        .news-card:hover .news-image img {
            transform: scale(1.03);
        }

        .news-card .news-content {
            flex: 1;
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .news-card .news-date {
            font-size: 13px;
            color: #3b82f6;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.3px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-card .news-date i {
            font-size: 14px;
        }

        .news-card h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #0f172a;
            line-height: 1.3;
        }

        .news-card p {
            font-size: 15px;
            color: #64748b;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: #3b82f6;
            text-decoration: none;
            transition: gap 0.2s;
            align-self: flex-start;
        }

        .news-card .read-more:hover {
            gap: 12px;
        }

        /* ===== 关于我们 ===== */
        .about-section {
            margin-top: 60px;
            background: #fff;
            border-radius: 32px;
            padding: 48px 36px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #f1f5f9;
        }

        .about-section .about-text {
            max-width: 800px;
            margin: 0 auto 30px;
            text-align: center;
            color: #475569;
            font-size: 16px;
            line-height: 1.8;
        }

        .about-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin: 30px 0 40px;
        }

        .about-stats .stat-box {
            text-align: center;
        }

        .about-stats .stat-box .number {
            font-size: 32px;
            font-weight: 800;
            color: #0f172a;
        }

        .about-stats .stat-box .label {
            font-size: 14px;
            color: #64748b;
        }

        .about-advantages {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0 20px;
        }

        .about-advantages .adv-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #f8fafc;
            padding: 14px 18px;
            border-radius: 12px;
            border: 1px solid #f1f5f9;
        }

        .about-advantages .adv-item i {
            color: #3b82f6;
            font-size: 20px;
            flex-shrink: 0;
        }

        .about-advantages .adv-item span {
            font-size: 15px;
            font-weight: 500;
            color: #0f172a;
        }

        .about-contact {
            text-align: center;
            margin-top: 30px;
        }

        .about-contact .btn-contact {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 14px 48px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .about-contact .btn-contact:hover {
            background: #1e293b;
        }

        /* ===== 支付区块 ===== */
        .pay-section {
            background: #0f172a;
            border-radius: 32px;
            padding: 48px 36px;
            margin-top: 60px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        .pay-section .pay-text {
            flex: 2 1 300px;
        }

        .pay-section .pay-text h2 {
            font-size: clamp(24px, 2.5vw, 32px);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .pay-section .pay-text p {
            color: #cbd5e1;
            font-size: 16px;
            max-width: 420px;
        }

        .pay-section .pay-btn-wrap {
            flex: 1 1 auto;
            text-align: right;
        }

        .pay-btn-wrap .btn-pay {
            background: #fff;
            color: #0f172a;
            border: none;
            padding: 16px 44px;
            border-radius: 40px;
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .pay-btn-wrap .btn-pay:hover {
            background: #e2e8f0;
        }

        .pay-btn-wrap .btn-pay:active {
            transform: scale(0.97);
        }

        .pay-btn-wrap .btn-pay:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .pay-guarantee {
            font-size: 13px;
            color: #94a3b8;
            margin-top: 10px;
            text-align: right;
        }

        /* ===== 页脚 ===== */
        .footer {
            text-align: center;
            padding: 40px 0 20px;
            color: #94a3b8;
            font-size: 14px;
            border-top: 1px solid #e2e8f0;
            margin-top: 50px;
        }

        .footer a {
            color: #0f172a;
            text-decoration: none;
            font-weight: 500;
        }

        /* ===== 微信二维码弹窗 ===== */
        .qr-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(4px);
            z-index: 9999;
            justify-content: center;
            align-items: center;
            animation: fadeIn 0.3s ease;
        }

        .qr-overlay.active {
            display: flex;
        }

        .qr-modal {
            background: #fff;
            border-radius: 28px;
            padding: 40px 44px 36px;
            max-width: 420px;
            width: 92%;
            text-align: center;
            box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
            animation: scaleIn 0.35s ease;
            position: relative;
        }

        .qr-modal .close-btn {
            position: absolute;
            top: 14px;
            right: 18px;
            background: none;
            border: none;
            font-size: 26px;
            color: #94a3b8;
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
            line-height: 1;
            padding: 4px 8px;
            border-radius: 50%;
        }

        .qr-modal .close-btn:hover {
            color: #0f172a;
            transform: rotate(90deg);
        }

        .qr-modal .qr-icon {
            font-size: 48px;
            color: #07c160;
            margin-bottom: 6px;
        }

        .qr-modal h3 {
            font-size: 22px;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 6px;
        }

        .qr-modal .sub-text {
            font-size: 14px;
            color: #94a3b8;
            margin-bottom: 20px;
        }

        .qr-modal .qr-wrapper {
            background: #ffffff;
            border-radius: 16px;
            padding: 16px;
            display: inline-block;
            border: 2px dashed #e2e8f0;
            margin-bottom: 16px;
        }

        .qr-modal .qr-wrapper img {
            width: 200px;
            height: 200px;
            display: block;
            object-fit: contain;
        }

        .qr-modal .qr-tip {
            font-size: 15px;
            color: #475569;
            line-height: 1.6;
        }

        .qr-modal .qr-tip strong {
            color: #0f172a;
        }

        .qr-modal .qr-tip .highlight-text {
            color: #3b82f6;
            font-weight: 600;
        }

        /* 弹窗动画 */
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.92) translateY(16px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        /* 防止背景滚动 */
        body.qr-open {
            overflow: hidden;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 992px) {
            .news-card .news-image {
                flex: 0 0 220px;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 12px 16px;
            }
            .hero {
                padding: 10px 0 30px;
                gap: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                justify-content: center;
            }
            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .account-grid {
                grid-template-columns: 1fr;
            }
            .about-advantages {
                grid-template-columns: 1fr;
            }
            .pay-section {
                flex-direction: column;
                text-align: center;
                padding: 32px 20px;
            }
            .pay-section .pay-text p {
                max-width: 100%;
            }
            .pay-section .pay-btn-wrap {
                text-align: center;
                width: 100%;
            }
            .pay-btn-wrap .btn-pay {
                width: 100%;
                justify-content: center;
            }
            .pay-guarantee {
                text-align: center;
            }
            .platforms {
                gap: 16px 28px;
            }
            .about-section {
                padding: 28px 18px;
            }
            .account-platforms {
                gap: 16px;
            }
            .account-platforms .platform-item {
                padding: 14px 20px;
                min-width: 80px;
            }

            .news-card {
                flex-direction: column;
            }
            .news-card .news-image {
                flex: 0 0 200px;
            }
            .news-card .news-content {
                padding: 20px 22px;
            }
            .news-card h4 {
                font-size: 18px;
            }

            .qr-modal {
                padding: 32px 24px 28px;
                max-width: 360px;
            }

            .qr-modal .qr-wrapper img {
                width: 160px;
                height: 160px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 12px 40px;
            }
            .hero-visual {
                padding: 20px 12px;
            }
            .service-card {
                padding: 20px 16px;
            }
            .about-stats {
                gap: 24px;
            }
            .about-stats .stat-box .number {
                font-size: 26px;
            }
            .news-card .news-image {
                flex: 0 0 160px;
            }
            .news-card .news-content {
                padding: 16px 18px;
            }
            .news-card h4 {
                font-size: 17px;
            }
            .qr-modal {
                padding: 24px 16px 20px;
                max-width: 320px;
            }
            .qr-modal .qr-wrapper img {
                width: 140px;
                height: 140px;
            }
            .qr-modal h3 {
                font-size: 18px;
            }
        }

        /* ===== loading 动画 ===== */
        .spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 2px solid rgba(15, 23, 42, 0.2);
            border-top-color: #0f172a;
            border-radius: 50%;
            animation: spin 0.7s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }