/* roulang page: index */
:root {
            --primary: #0A251D;
            --accent: #128C7E;
            --accent-hover: #0E6F64;
            --highlight: #C5A880;
            --bg-page: #F7F9F8;
            --bg-dark: #05130E;
            --bg-card: #FFFFFF;
            --text-title: #0F1715;
            --text-body: #3A4843;
            --text-muted: #73837D;
            --border-color: #E2E8E5;
            --border-dark: #1A382F;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --shadow-sm: 0 2px 8px rgba(10, 37, 29, 0.04);
            --shadow-hover: 0 12px 24px rgba(10, 37, 29, 0.08);
            --radius: 8px;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul, ol {
            list-style: none;
        }

        button, input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .num-font {
            font-variant-numeric: tabular-nums;
        }

        /* 顶部通栏 */
        .top-bar {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            font-size: 12px;
            height: 38px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-badges {
            display: flex;
            gap: 20px;
        }
        .top-badge-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .top-badge-dot {
            width: 6px;
            height: 6px;
            background-color: var(--highlight);
            border-radius: 50%;
        }

        /* 主导航 */
        .header-main {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: 74px;
        }
        .header-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .logo-symbol {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            border-bottom: 2px solid var(--highlight);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-title);
            position: relative;
            padding: 8px 0;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: var(--transition);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 4px;
            display: inline-block;
            transition: var(--transition);
            border: 1px solid var(--primary);
        }
        .nav-cta-btn:hover {
            background-color: var(--accent);
            border-color: var(--accent);
        }
        .mobile-toggle {
            display: none;
            background: none;
            cursor: pointer;
            padding: 8px;
        }
        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--text-title);
            margin: 5px 0;
            transition: var(--transition);
        }

        /* 统一 Section 排版 */
        .section-padding {
            padding: 88px 0;
        }
        .section-header {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 52px;
        }
        .section-tag {
            display: inline-block;
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            background: rgba(18, 140, 126, 0.08);
            padding: 4px 14px;
            border-radius: 4px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-title);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* 板块 01: 沉浸式 Hero（全宽遮罩 + 播放按钮范式） */
        .hero-section {
            position: relative;
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 120px 0 110px;
            overflow: hidden;
            background-image: linear-gradient(rgba(10, 37, 29, 0.92), rgba(5, 19, 14, 0.95)), url('/assets/images/5775eb0c909c73e2.jpg');
            background-size: cover;
            background-position: center;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 22px;
            color: #FFFFFF;
        }
        .hero-content h1 span {
            color: var(--highlight);
        }
        .hero-summary {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 34px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary-action {
            background-color: var(--accent);
            color: #FFFFFF;
            padding: 14px 32px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            border: 1px solid var(--accent);
        }
        .btn-primary-action:hover {
            background-color: #0d6e63;
            transform: translateY(-2px);
        }
        .btn-outline-action {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            padding: 14px 28px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.05);
        }
        .btn-outline-action:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #FFFFFF;
        }
        .play-icon-box {
            width: 26px;
            height: 26px;
            background: var(--highlight);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 11px;
            padding-left: 2px;
        }

        /* 首屏右侧全景仪表盘预览 */
        .hero-stage {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            backdrop-filter: blur(10px);
        }
        .stage-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-dark);
            padding-bottom: 14px;
            margin-bottom: 18px;
        }
        .stage-tag {
            font-size: 12px;
            color: var(--highlight);
            font-weight: 600;
            background: rgba(197, 168, 128, 0.15);
            padding: 3px 10px;
            border-radius: 3px;
        }
        .stage-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 18px;
        }
        .stage-card {
            background: rgba(0, 0, 0, 0.25);
            padding: 14px;
            border-radius: 4px;
            border-left: 3px solid var(--accent);
        }
        .stage-card-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 4px;
        }
        .stage-card-val {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
        }
        .stage-visual {
            background: rgba(0, 0, 0, 0.4);
            border-radius: 4px;
            padding: 16px;
        }
        .stage-bar-row {
            margin-bottom: 10px;
        }
        .stage-bar-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            margin-bottom: 4px;
            color: rgba(255, 255, 255, 0.7);
        }
        .stage-bar-track {
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
            overflow: hidden;
        }
        .stage-bar-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 3px;
        }

        /* 板块 02: 内容日历 */
        .calendar-section {
            background-color: #FFFFFF;
        }
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .calendar-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            background-color: var(--bg-page);
            transition: var(--transition);
        }
        .calendar-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .calendar-time {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .calendar-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
        }
        .calendar-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 03: 热门专题 */
        .topics-section {
            background-color: var(--bg-page);
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .topic-card {
            background-color: #FFFFFF;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .topic-img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .topic-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card:hover .topic-img-wrap img {
            transform: scale(1.04);
        }
        .topic-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-meta {
            font-size: 12px;
            color: var(--highlight);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
        }
        .topic-body p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 板块 04: 观点解读（非对称图文版式） */
        .insight-section {
            background-color: #FFFFFF;
        }
        .insight-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 48px;
        }
        .insight-block.reverse {
            direction: rtl;
        }
        .insight-block.reverse .insight-text {
            direction: ltr;
        }
        .insight-img {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .insight-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .insight-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .insight-text p {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 16px;
            line-height: 1.75;
        }
        .insight-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 20px;
        }
        .insight-point-item {
            display: flex;
            align-items: baseline;
            gap: 10px;
            font-size: 14px;
            color: var(--text-title);
        }
        .point-dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* 板块 05: 资讯与动态 */
        .news-section {
            background-color: var(--bg-page);
        }
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            transition: var(--transition);
        }
        .news-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 06: 媒体精选与架构底座（全宽深色反差背景） */
        .media-dark-section {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            padding: 96px 0;
            background-image: linear-gradient(rgba(5, 19, 14, 0.94), rgba(5, 19, 14, 0.94)), url('/assets/images/9233a6f55b005d68.jpg');
            background-size: cover;
            background-position: center;
        }
        .media-dark-section .section-title {
            color: #FFFFFF;
        }
        .media-dark-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }
        .arch-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .arch-step-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius);
            padding: 28px 20px;
            position: relative;
        }
        .arch-step-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--highlight);
            margin-bottom: 12px;
        }
        .arch-step-box h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #FFFFFF;
        }
        .arch-step-box p {
            font-size: 13px;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.65);
        }

        /* 板块 07: 核心优势与技术指标（严格 6 卡片网格） */
        .features-section {
            background-color: #FFFFFF;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px;
            background: var(--bg-page);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .feat-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(10, 37, 29, 0.06);
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 14px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .feat-stat {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            border-top: 1px dashed var(--border-color);
            padding-top: 10px;
        }

        /* 板块 08: 业务实战破局场景 */
        .scenarios-section {
            background-color: var(--bg-page);
        }
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .scenario-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 24px;
            display: flex;
            flex-direction: column;
        }
        .scen-type {
            font-size: 13px;
            color: var(--highlight);
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 14px;
        }
        .scen-item {
            margin-bottom: 12px;
        }
        .scen-label {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 2px;
        }
        .scen-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 09: 数据分析通栏（高密量化指标条） */
        .stats-strip-section {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 56px 0;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item-box {
            padding: 0 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }
        .stat-item-box:last-child {
            border-right: none;
        }
        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--highlight);
            margin-bottom: 6px;
            line-height: 1.1;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
        }

        /* 板块 10: 机构口碑与分析师评定 */
        .reviews-section {
            background-color: #FFFFFF;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .review-card {
            background: var(--bg-page);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-quote {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
            margin-bottom: 20px;
        }
        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }
        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .reviewer-meta h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-title);
        }
        .reviewer-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 板块 11: 平台保障承诺（横向 4 联徽章） */
        .guarantee-section {
            background-color: var(--bg-page);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 60px 0;
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .guarantee-item {
            text-align: center;
            padding: 16px;
        }
        .guarantee-icon {
            width: 48px;
            height: 48px;
            background: rgba(18, 140, 126, 0.1);
            color: var(--accent);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .guarantee-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 6px;
        }
        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块 12: 交互式 FAQ 手风琴 */
        .faq-section {
            background-color: #FFFFFF;
        }
        .faq-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
        }
        .faq-trigger {
            width: 100%;
            padding: 22px 0;
            background: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            cursor: pointer;
            text-align: left;
        }
        .faq-symbol {
            font-size: 18px;
            color: var(--accent);
            transition: var(--transition);
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .faq-content-inner {
            padding-bottom: 22px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
        }
        .faq-item.active .faq-symbol {
            transform: rotate(45deg);
        }

        /* 板块 13: 转化收口与演示预约 */
        .subscribe-section {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 72px 0;
            background-image: linear-gradient(rgba(10, 37, 29, 0.96), rgba(5, 19, 14, 0.96)), url('/assets/images/5c91b23bcccf3913.webp');
            background-size: cover;
            background-position: center;
        }
        .subscribe-box {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }
        .subscribe-box h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .subscribe-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .subscribe-input {
            flex-grow: 1;
            padding: 14px 18px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.95);
            color: var(--text-title);
            font-size: 14px;
        }
        .subscribe-btn {
            background-color: var(--accent);
            color: #FFFFFF;
            padding: 14px 28px;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-btn:hover {
            background-color: #0e6f64;
        }

        /* 页脚区域 */
        .site-footer {
            background-color: #030C09;
            color: rgba(255, 255, 255, 0.65);
            padding: 72px 0 28px;
            font-size: 14px;
            border-top: 1px solid var(--border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 56px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-about {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 18px;
            border-left: 3px solid var(--accent);
            padding-left: 8px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--highlight);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }
        .footer-copy {
            color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .calendar-grid, .arch-steps, .stats-grid, .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid, .news-list, .features-grid, .scenario-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .nav-menu {
                position: fixed;
                top: 74px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                display: none;
            }
            .nav-menu.open {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .header-cta-item {
                display: none;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .calendar-grid, .topic-grid, .news-list, .arch-steps, .features-grid, .scenario-grid, .stats-grid, .reviews-grid, .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .insight-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .insight-block.reverse {
                direction: ltr;
            }
            .insight-block.reverse .insight-text {
                direction: ltr;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .stat-item-box {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding-bottom: 20px;
            }
            .stat-item-box:last-child {
                border-bottom: none;
            }
        }