:root {
            --bg-primary: #0d1117;
            --bg-secondary: #161b22;
            --bg-tertiary: #1c2330;
            --border-color: #30363d;
            --text-primary: #e6edf3;
            --text-secondary: #8b949e;
            --text-muted: #6e7681;
            --accent-gold: #f59e0b;
            --accent-gold-light: #fbbf24;
            --accent-gold-dim: rgba(245, 158, 11, 0.15);
            --indigo: #1e3a5f;
            --indigo-light: #2d4f7a;
            --success: #3fb950;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 8px 32px rgba(245, 158, 11, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* 背景网格装饰 */
        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(30, 58, 95, 0.08) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 58, 95, 0.08) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }

        /* 导航栏 */
        header {
            position: sticky;
            top: 0;
            background-color: rgba(13, 17, 23, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
        }

        .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 68px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: "Noto Serif SC", serif;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            cursor: pointer;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: var(--bg-primary);
        }

        .logo span {
            color: var(--accent-gold);
        }

        .nav-menu {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 400;
            transition: all 0.25s ease;
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }

        .nav-link:hover {
            color: var(--accent-gold);
            background-color: var(--accent-gold-dim);
        }

        .nav-link.active {
            color: var(--accent-gold);
            background-color: var(--accent-gold-dim);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            color: var(--bg-primary) !important;
            font-weight: 600 !important;
            padding: 8px 20px !important;
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }

        /* 页面视图容器 */
        .view {
            display: none;
            min-height: calc(100vh - 68px);
        }

        .view.active {
            display: block;
            animation: fadeIn 0.4s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(12px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Hero 区域 */
        .hero {
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: "";
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, var(--accent-gold-dim) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 800px;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--accent-gold-dim);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent-gold);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 28px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background-color: var(--success);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .hero h1 {
            font-family: "Noto Serif SC", serif;
            font-size: 52px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 640px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            font-family: inherit;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            color: var(--bg-primary);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background-color: var(--accent-gold-dim);
        }

        /* 数据统计条 */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin-top: 60px;
        }

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

        .stat-number {
            font-family: "Noto Serif SC", serif;
            font-size: 36px;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* 通用区块 */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .section-title {
            font-family: "Noto Serif SC", serif;
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 服务卡片网格 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        /* 首页关于我预览板块 */
        .about-preview {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
            align-items: start;
            margin-top: 48px;
        }
        .about-preview-left {
            text-align: center;
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 36px 28px;
        }
        .about-preview-avatar {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--indigo-light));
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 44px;
            font-weight: 700;
            color: var(--bg-primary);
            border: 3px solid var(--accent-gold);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15), 0 8px 24px rgba(0,0,0,0.2);
            font-family: "Noto Serif SC", serif;
        }
        .about-preview-left h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            font-family: "Noto Serif SC", serif;
        }
        .about-preview-role {
            font-size: 13px;
            color: var(--accent-gold);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .about-preview-info {
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .about-preview-info-item {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .about-preview-info-item:last-child {
            border-bottom: none;
        }
        .about-preview-info-item .label {
            color: var(--text-muted);
        }
        .about-preview-info-item .value {
            color: var(--text-primary);
            font-weight: 500;
        }
        .about-preview-right p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .about-preview-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 28px 0;
        }
        .about-preview-tag {
            padding: 8px 16px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            cursor: default;
        }
        .about-preview-tag:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-1px);
        }
        .about-preview-btn {
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .about-preview {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .about-preview-left {
                max-width: 320px;
                margin: 0 auto;
            }
        }

        .service-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 32px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.35s ease;
        }

        .service-card:hover {
            border-color: rgba(245, 158, 11, 0.4);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            background-color: var(--accent-gold-dim);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .service-icon svg {
            width: 26px;
            height: 26px;
            stroke: var(--accent-gold);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 优势区块 */
        .advantage-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .advantage-text h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 24px;
            line-height: 1.35;
        }

        .advantage-text p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .advantage-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .advantage-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .advantage-check {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background-color: var(--accent-gold-dim);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .advantage-check svg {
            width: 16px;
            height: 16px;
            stroke: var(--accent-gold);
            fill: none;
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .advantage-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .advantage-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .advantage-visual {
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            position: relative;
        }

        .rank-demo {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            background-color: var(--bg-primary);
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .rank-num {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }

        .rank-num.top {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            color: var(--bg-primary);
        }

        .rank-num.normal {
            background-color: var(--bg-tertiary);
            color: var(--text-secondary);
        }

        .rank-keyword {
            flex: 1;
            font-size: 14px;
            color: var(--text-primary);
        }

        .rank-trend {
            font-size: 13px;
            font-weight: 600;
        }

        .rank-trend.up {
            color: var(--success);
        }

        .rank-trend.stable {
            color: var(--text-muted);
        }

        /* 案例卡片 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 28px;
        }

        .case-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.35s ease;
        }

        .case-card:hover {
            transform: translateY(-6px);
            border-color: rgba(245, 158, 11, 0.4);
            box-shadow: var(--shadow-hover);
        }

        .case-cover {
            height: 180px;
            background: linear-gradient(135deg, var(--indigo), var(--indigo-light));
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .case-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            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: 30px 30px;
        }

        .case-cover-icon {
            position: relative;
            z-index: 2;
            width: 64px;
            height: 64px;
            background-color: rgba(245, 158, 11, 0.2);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-cover-icon svg {
            width: 32px;
            height: 32px;
            stroke: var(--accent-gold);
            fill: none;
            stroke-width: 2;
        }

        .case-body {
            padding: 28px;
        }

        .case-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-gold);
            background-color: var(--accent-gold-dim);
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 14px;
        }

        .case-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .case-meta {
            display: flex;
            gap: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }

        .case-meta-item {
            font-size: 13px;
            color: var(--text-muted);
        }

        .case-meta-item strong {
            display: block;
            font-size: 18px;
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 2px;
        }

        /* 文章列表 */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 860px;
            margin: 0 auto;
        }

        .article-item {
            display: flex;
            gap: 28px;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 28px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .article-item:hover {
            border-color: rgba(245, 158, 11, 0.4);
            transform: translateX(6px);
        }

        .article-date {
            flex-shrink: 0;
            text-align: center;
            padding-right: 24px;
            border-right: 1px solid var(--border-color);
        }

        .article-date .day {
            font-family: "Noto Serif SC", serif;
            font-size: 32px;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
        }

        .article-date .month {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .article-content {
            flex: 1;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
            transition: color 0.2s;
        }

        .article-item:hover .article-content h3 {
            color: var(--accent-gold);
        }

        .article-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .article-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-tag {
            font-size: 12px;
            color: var(--text-muted);
            background-color: var(--bg-tertiary);
            padding: 3px 10px;
            border-radius: 4px;
        }

        /* 文章详情页 */
        .article-detail {
            max-width: 780px;
            margin: 0 auto;
            padding: 60px 0;
        }

        .article-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            margin-bottom: 32px;
            cursor: pointer;
            transition: color 0.2s;
            background: none;
            border: none;
            font-family: inherit;
        }

        .article-back:hover {
            color: var(--accent-gold);
        }

        .article-detail h1 {
            font-family: "Noto Serif SC", serif;
            font-size: 38px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 20px;
        }

        .article-detail-meta {
            display: flex;
            gap: 20px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 36px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
        }

        .article-body h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 26px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--accent-gold);
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 12px;
        }

        .article-body p {
            margin-bottom: 20px;
            color: var(--text-secondary);
        }

        .article-body ul, .article-body ol {
            margin: 16px 0 24px 24px;
            color: var(--text-secondary);
        }

        .article-body li {
            margin-bottom: 10px;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-gold);
            padding: 16px 24px;
            background-color: var(--accent-gold-dim);
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            color: var(--text-primary);
            font-style: italic;
        }

        .article-body code {
            background-color: var(--bg-tertiary);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 15px;
            color: var(--accent-gold-light);
        }

        /* 关于我页面 */
        .about-hero {
            padding: 80px 0 60px;
        }

        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 60px;
            align-items: start;
        }

        .about-portrait {
            position: static;
        }

        .portrait-card {
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 36px;
            text-align: center;
        }

        .portrait-avatar {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--indigo-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            font-weight: 700;
            color: var(--bg-primary);
            margin: 0 auto 20px;
            transition: all 0.4s ease;
        }

        /* 样式A：圆形头像模式 */
        .portrait-card.avatar-circle .portrait-avatar {
            background-size: cover;
            background-position: center top;
            border: 3px solid var(--accent-gold);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15), 0 8px 24px rgba(0,0,0,0.3);
            font-size: 0;
        }

                /* 样式B：背景照片模式 */
        .portrait-card.avatar-cover {
            position: relative;
            overflow: hidden;
            padding-top: 200px;
        }
        .portrait-card.avatar-cover::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 340px;
            background-image: var(--cover-photo);
            background-size: cover;
            background-position: center top;
            z-index: 0;
            transition: opacity 0.4s ease;
        }
        .portrait-card.avatar-cover::after {
            content: "";
            position: absolute;
            top: 180px;
            left: 0;
            right: 0;
            height: 160px;
            background: linear-gradient(180deg, 
                transparent 0%, 
                rgba(13,17,23,0.12) 15%, 
                rgba(13,17,23,0.35) 35%, 
                rgba(13,17,23,0.6) 55%, 
                rgba(13,17,23,0.82) 75%, 
                rgba(13,17,23,0.97) 95%,
                rgba(13,17,23,1) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .portrait-card.avatar-cover .portrait-info {
            background: transparent;
            position: relative;
            z-index: 2;
        }
        .portrait-card.avatar-cover .portrait-info-item {
            background: transparent;
        }
        .portrait-card.avatar-cover .portrait-avatar {
            display: none;
        }
        .portrait-card.avatar-cover h3,
        .portrait-card.avatar-cover .role,
        .portrait-card.avatar-cover .portrait-info {
            position: relative;
            z-index: 2;
        }
        .portrait-card.avatar-cover h3 {
            text-shadow: 0 2px 8px rgba(0,0,0,0.5);
        }

        /* 头像切换按钮 - 符合网站高端商务风格 */
        .avatar-switcher {
            display: flex;
            gap: 8px;
            margin-top: 18px;
            justify-content: center;
        }
        .avatar-toggle {
            width: 100%;
            padding: 13px 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, rgba(30, 36, 49, 0.7), rgba(22, 27, 38, 0.85));
            border: 1px solid rgba(245, 158, 11, 0.18);
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-family: inherit;
            color: var(--text-secondary);
            position: relative;
            overflow: hidden;
        }
        .avatar-toggle::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
            pointer-events: none;
        }
        .avatar-toggle:hover {
            border-color: rgba(245, 158, 11, 0.55);
            background: linear-gradient(135deg, rgba(35, 42, 56, 0.85), rgba(26, 32, 44, 0.92));
            color: var(--accent-gold);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.12), 0 2px 6px rgba(0,0,0,0.2);
        }
        .avatar-toggle:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.08);
        }
        .avatar-toggle .toggle-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: var(--accent-gold);
            opacity: 0.85;
            transition: opacity 0.3s;
        }
        .avatar-toggle:hover .toggle-icon {
            opacity: 1;
        }
        .avatar-toggle .toggle-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.8px;
            flex: 1;
            text-align: left;
            transition: color 0.3s;
        }
        .avatar-toggle .toggle-divider {
            width: 1px;
            height: 18px;
            background: linear-gradient(180deg, transparent, var(--border-color), transparent);
        }
        .avatar-toggle .toggle-count {
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.5px;
            display: flex;
            align-items: baseline;
            gap: 3px;
        }
        .avatar-toggle .toggle-count #avatarCurrent {
            color: var(--accent-gold);
            font-size: 14px;
            font-weight: 700;
            font-family: "Noto Serif SC", serif;
        }
        .avatar-toggle .toggle-sep {
            color: var(--text-muted);
            opacity: 0.4;
            font-size: 10px;
        }
        .avatar-toggle .toggle-total {
            color: var(--text-muted);
            font-size: 11px;
        }

        .portrait-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .portrait-card .role {
            font-size: 14px;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .portrait-info {
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .portrait-info-item {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .portrait-info-item .label {
            color: var(--text-muted);
        }

        .portrait-info-item .value {
            color: var(--text-primary);
            font-weight: 500;
        }

        .about-content h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 28px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--text-primary);
        }

        .about-content h2:first-child {
            margin-top: 0;
        }

        .about-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .skill-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }

        .skill-tag {
            background-color: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 14px;
            transition: all 0.2s;
        }

        .skill-tag:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        .timeline {
            position: relative;
            padding-left: 28px;
            margin-top: 20px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background-color: var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -26px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--accent-gold);
            border: 3px solid var(--bg-primary);
        }

        .timeline-item .time {
            font-size: 13px;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .timeline-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        /* 联系页面 */
        .contact-section {
            padding: 80px 0;
        }

        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .contact-info h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .contact-info > p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-method {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            transition: all 0.25s;
        }

        .contact-method:hover {
            border-color: rgba(245, 158, 11, 0.4);
        }

        .contact-method-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background-color: var(--accent-gold-dim);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .contact-method-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--accent-gold);
            fill: none;
            stroke-width: 2;
        }

        .contact-method h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .contact-method p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .contact-form {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 36px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background-color: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 15px;
            font-family: inherit;
            transition: border-color 0.2s;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent-gold);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .form-submit {
            width: 100%;
            margin-top: 8px;
        }

        .form-note {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 16px;
            text-align: center;
        }

        /* 页脚 */
        footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 16px;
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s;
            cursor: pointer;
        }

        .footer-col a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            background-color: var(--bg-tertiary);
            padding: 6px 12px;
            border-radius: 100px;
        }

        .footer-badge .dot {
            width: 6px;
            height: 6px;
            background-color: var(--success);
            border-radius: 50%;
        }

        /* 简单服务清单 */
        .service-simple-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 960px;
            margin: 0 auto;
        }
        .simple-item {
            display: flex;
            gap: 18px;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 22px 24px;
            transition: all 0.25s ease;
        }
        .simple-item:hover {
            border-color: rgba(245, 158, 11, 0.35);
            transform: translateY(-3px);
        }
        .simple-num {
            flex-shrink: 0;
            font-family: "Noto Serif SC", serif;
            font-size: 32px;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
            opacity: 0.9;
        }
        .simple-content h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .simple-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* 金字塔展示 */
        .pyramid-hint {
            text-align: center;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .pyramid-container {
            max-width: 860px;
            margin: 0 auto 48px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .pyramid-plus {
            font-size: 22px;
            font-weight: 900;
            color: var(--accent-gold);
            opacity: 0.5;
            line-height: 1;
            margin: 2px 0;
            z-index: 10;
            text-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
        }
        .pyramid-level {
            position: relative;
            cursor: pointer;
            transition: all 0.4s ease;
            clip-path: polygon(5% 0%, 95% 0%, 100% 100%, 0% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 22px 48px;
            min-height: 76px;
            width: 100%;
            opacity: 0;
            transform: translateY(24px);
            animation: pyramidIn 0.7s ease forwards;
            backdrop-filter: blur(4px);
        }
        @keyframes pyramidIn {
            to { opacity: 1; transform: translateY(0); }
        }
        .pyramid-level.goal {
            width: 36%;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.85), rgba(251, 191, 36, 0.85));
            color: var(--bg-primary);
            animation-delay: 0.1s;
            z-index: 5;
            box-shadow: 0 4px 24px rgba(245, 158, 11, 0.2);
        }
        .pyramid-level.l4 {
            width: 50%;
            background: linear-gradient(135deg, rgba(45, 90, 138, 0.55), rgba(30, 63, 102, 0.55));
            animation-delay: 0.25s;
            z-index: 4;
        }
        .pyramid-level.l3 {
            width: 64%;
            background: linear-gradient(135deg, rgba(40, 78, 122, 0.5), rgba(26, 56, 88, 0.5));
            animation-delay: 0.4s;
            z-index: 3;
        }
        .pyramid-level.l2 {
            width: 80%;
            background: linear-gradient(135deg, rgba(35, 69, 106, 0.45), rgba(22, 48, 77, 0.45));
            animation-delay: 0.55s;
            z-index: 2;
        }
        .pyramid-level.l1 {
            width: 100%;
            background: linear-gradient(135deg, rgba(30, 60, 94, 0.4), rgba(18, 40, 64, 0.4));
            animation-delay: 0.7s;
            z-index: 1;
        }
        .pyramid-level:hover {
            filter: brightness(1.25);
            transform: scale(1.03);
        }
        .pyramid-container:hover .pyramid-level:not(:hover) {
            filter: brightness(0.65);
        }
        .level-content {
            display: flex;
            align-items: center;
            gap: 14px;
            text-align: center;
        }
        .level-num {
            font-family: "Noto Serif SC", serif;
            font-size: 26px;
            font-weight: 900;
            opacity: 0.85;
            line-height: 1;
        }
        .level-info h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 2px;
            line-height: 1.3;
        }
        .level-info p {
            font-size: 12px;
            opacity: 0.75;
            margin: 0;
            line-height: 1.4;
        }
        .level-keywords {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 5px;
            letter-spacing: 0.3px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }
        .pyramid-level.goal .level-keywords {
            color: rgba(13, 17, 23, 0.6);
        }
        .level-detail {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.6s ease, padding 0.4s ease, margin 0.4s ease;
            width: 86%;
            background-color: rgba(30, 41, 59, 0.6);
            border-left: 1px solid rgba(245, 158, 11, 0.2);
            border-right: 1px solid rgba(245, 158, 11, 0.2);
            border-bottom: 1px solid rgba(245, 158, 11, 0.2);
            border-radius: 0 0 14px 14px;
            margin-top: -6px;
            backdrop-filter: blur(8px);
        }
        .level-detail.open {
            max-height: 1200px;
            padding: 28px 32px;
            margin-bottom: 14px;
        }
        .detail-items {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .detail-item h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(245, 158, 11, 0.15);
        }
        .detail-item h5::before {
            content: "";
            width: 8px;
            height: 8px;
            background-color: var(--accent-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .detail-item p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0;
            padding-left: 18px;
        }
        .detail-item .detail-list {
            list-style: none;
            padding-left: 18px;
            margin-top: 10px;
        }
        .detail-item .detail-list li {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 4px 0;
            padding-left: 16px;
            position: relative;
        }
        .detail-item .detail-list li::before {
            content: "▸";
            position: absolute;
            left: 0;
            color: var(--accent-gold);
            font-size: 12px;
        }

        /* 高级悬浮微信按钮 */
        .wechat-btn-wrap {
            margin-bottom: 36px;
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .wechat-btn {
            display: inline-flex;
            align-items: center;
            gap: 14px;
            padding: 14px 26px 14px 18px;
            background:
                linear-gradient(180deg, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.12) 45%, transparent 55%),
                linear-gradient(135deg, #0BE078 0%, #07C160 45%, #05A04E 100%);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 20px;
            cursor: pointer;
            font-family: inherit;
            box-shadow:
                0 1px 0 rgba(255, 255, 255, 0.5) inset,
                0 -2px 0 rgba(0, 0, 0, 0.12) inset,
                0 6px 0 #036B30,
                0 10px 24px rgba(7, 193, 96, 0.4),
                0 4px 10px rgba(0, 0, 0, 0.12);
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        .wechat-btn::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 55%;
            background: linear-gradient(180deg, rgba(255,255,255,0.25) 0%, transparent 100%);
            border-radius: 20px 20px 0 0;
            pointer-events: none;
        }
        .wechat-btn::after {
            content: "";
            position: absolute;
            top: 0;
            left: -100%;
            width: 45%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            transform: skewX(-20deg);
            transition: left 0.7s ease;
            pointer-events: none;
        }
        .wechat-btn:hover::after {
            left: 150%;
        }
        .wechat-btn:hover {
            transform: translateY(-3px);
            background:
                linear-gradient(180deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.15) 45%, transparent 55%),
                linear-gradient(135deg, #12EA82 0%, #09D068 45%, #06B058 100%);
            box-shadow:
                0 1px 0 rgba(255, 255, 255, 0.55) inset,
                0 -2px 0 rgba(0, 0, 0, 0.12) inset,
                0 9px 0 #036B30,
                0 16px 36px rgba(7, 193, 96, 0.5),
                0 6px 14px rgba(0, 0, 0, 0.15);
        }
        .wechat-btn:active {
            transform: translateY(4px);
            box-shadow:
                0 1px 0 rgba(255, 255, 255, 0.35) inset,
                0 -1px 0 rgba(0, 0, 0, 0.1) inset,
                0 2px 0 #036B30,
                0 4px 10px rgba(7, 193, 96, 0.3),
                0 2px 5px rgba(0, 0, 0, 0.1);
        }
        .wechat-btn-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(180deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.12) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow:
                inset 0 1px 0 rgba(255,255,255,0.4),
                inset 0 -1px 0 rgba(0,0,0,0.1),
                0 2px 4px rgba(0,0,0,0.1);
            position: relative;
            z-index: 1;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .wechat-btn-icon svg {
            width: 22px;
            height: 22px;
            fill: #fff;
        }
        .wechat-btn-text {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            line-height: 1.4;
            position: relative;
            z-index: 1;
        }
        .wechat-btn-title {
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
            text-shadow: 0 1px 2px rgba(0,0,0,0.12);
        }
        .wechat-btn-title .click-hint {
            font-size: 12px;
            font-weight: 500;
            opacity: 0.85;
            margin-left: 2px;
        }
        .wechat-btn-id {
            font-size: 12px;
            opacity: 0.95;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(0, 0, 0, 0.15);
            padding: 2px 9px;
            border-radius: 8px;
            margin-top: 4px;
            border: 1px solid rgba(255,255,255,0.12);
        }
        .wechat-btn-tip {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .wechat-btn-tip strong {
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* 微信弹窗 */
        .wechat-modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(6px);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .wechat-modal-overlay.show {
            display: flex;
            opacity: 1;
        }
        .wechat-modal {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
            border: 1px solid rgba(7, 193, 96, 0.3);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
            max-width: 360px;
            width: 90%;
            position: relative;
            transform: scale(0.9);
            transition: transform 0.3s ease;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }
        .wechat-modal-overlay.show .wechat-modal {
            transform: scale(1);
        }
        .wechat-modal-close {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--bg-primary);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }
        .wechat-modal-close:hover {
            color: var(--text-primary);
            border-color: var(--accent-gold);
        }
        .wechat-modal-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, #09DD72, #06AD56);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        .wechat-modal-icon svg {
            width: 36px;
            height: 36px;
            fill: #fff;
        }
        .wechat-modal h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .wechat-modal p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .wechat-id-box {
            background-color: var(--bg-primary);
            border: 1px dashed rgba(7, 193, 96, 0.4);
            border-radius: 10px;
            padding: 16px 20px;
            margin-bottom: 16px;
        }
        .wechat-id-box .label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .wechat-id-box .id {
            font-size: 20px;
            font-weight: 700;
            color: #09DD72;
            letter-spacing: 1px;
        }
        .wechat-modal-note {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .wechat-id-box {
            cursor: pointer;
            transition: all 0.2s;
        }
        .wechat-id-box:hover {
            border-color: rgba(7, 193, 96, 0.6);
            background-color: rgba(7, 193, 96, 0.05);
        }
        .copy-toast {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0.8);
            background: rgba(0, 0, 0, 0.85);
            color: #fff;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            z-index: 10000;
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }
        .copy-toast.show {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }

        /* 服务分层展示 */
        .service-goal {
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
            border: 1px solid rgba(245, 158, 11, 0.2);
            border-radius: 14px;
            padding: 36px 40px;
            margin-bottom: 40px;
            text-align: center;
        }
        .service-goal .goal-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--accent-gold);
            background-color: var(--accent-gold-dim);
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 14px;
        }
        .service-goal h3 {
            font-family: "Noto Serif SC", serif;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .service-goal p {
            font-size: 15px;
            color: var(--text-secondary);
        }

        .service-flow {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .flow-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 20px;
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            min-width: 100px;
        }
        .flow-step.final {
            background: linear-gradient(135deg, var(--accent-gold-dim), transparent);
            border-color: rgba(245, 158, 11, 0.4);
        }
        .flow-num {
            font-family: "Noto Serif SC", serif;
            font-size: 22px;
            font-weight: 900;
            color: var(--accent-gold);
        }
        .flow-step.final .flow-num {
            font-size: 24px;
        }
        .flow-name {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
        }
        .flow-arrow {
            color: var(--text-muted);
            font-size: 18px;
            font-weight: bold;
        }

        .service-modules {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .module-card {
            background-color: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .module-card:hover {
            border-color: rgba(245, 158, 11, 0.3);
        }
        .module-header {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 28px 32px;
            background: linear-gradient(135deg, var(--bg-tertiary), transparent);
            border-bottom: 1px solid var(--border-color);
        }
        .module-num {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: "Noto Serif SC", serif;
            font-size: 24px;
            font-weight: 900;
            color: var(--bg-primary);
        }
        .module-header h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .module-header p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }
        .module-items {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1px;
            background-color: var(--border-color);
        }
        .module-item {
            background-color: var(--bg-secondary);
            padding: 24px 28px;
        }
        .module-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .module-item h4::before {
            content: "";
            width: 6px;
            height: 6px;
            background-color: var(--accent-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .module-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            padding-left: 14px;
        }

        /* 响应式 */
        @media (max-width: 968px) {
            .hero h1 { font-size: 40px; }
            .stats-bar { grid-template-columns: repeat(2, 1fr); }
            .advantage-layout { grid-template-columns: 1fr; gap: 40px; }
            .about-layout { grid-template-columns: 1fr; }
            .about-portrait { position: static; }
            .contact-layout { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .mobile-menu-btn { display: block; }
            .nav-menu.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background-color: var(--bg-secondary);
                border-bottom: 1px solid var(--border-color);
                padding: 16px 24px;
                gap: 4px;
            }
            .hero { padding: 60px 0 50px; }
            .hero h1 { font-size: 32px; }
            .hero p { font-size: 16px; }
            .section { padding: 56px 0; }
            .section-title { font-size: 28px; }
            .article-item { flex-direction: column; gap: 16px; }
            .article-date {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-right: 0;
                padding-bottom: 12px;
                text-align: left;
            }
            .form-row { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; }
            .article-detail h1 { font-size: 28px; }
            .service-goal { padding: 24px; }
            .service-goal h3 { font-size: 20px; }
            .flow-arrow { display: none; }
            .service-flow { gap: 8px; }
            .flow-step { min-width: 80px; padding: 10px 14px; }
            .module-header { padding: 20px; gap: 14px; }
            .module-num { width: 44px; height: 44px; font-size: 18px; }
            .module-header h3 { font-size: 18px; }
            .module-items { grid-template-columns: 1fr; }
            .module-item { padding: 18px 20px; }
            .pyramid-level.goal { width: 55%; }
            .pyramid-level.l4 { width: 68%; }
            .pyramid-level.l3 { width: 80%; }
            .pyramid-level.l2 { width: 92%; }
            .pyramid-level.l1 { width: 100%; }
            .level-num { font-size: 20px; }
            .level-info h4 { font-size: 14px; }
            .level-info p { font-size: 11px; }
            .detail-items { grid-template-columns: 1fr; }
            .level-detail { width: 95%; }
            .service-simple-list { grid-template-columns: 1fr; }
            .simple-item { padding: 18px 20px; }
            .simple-num { font-size: 26px; }
        }
    
        /* 带按钮的section-header布局 */
        .section-header-with-btn {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            text-align: left;
            gap: 30px;
        }
        .section-header-left {
            flex: 1;
        }
        .section-header-right {
            flex-shrink: 0;
            padding-bottom: 4px;
        }
        /* 金色按钮 */
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #0d1117;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
        }
        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.4);
        }
        .btn-gold:active {
            transform: translateY(0);
        }
        /* 响应式：手机端按钮在标题下面 */
        @media (max-width: 768px) {
            .section-header-with-btn {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .section-header-right {
                padding-bottom: 0;
            }
        }