/* ============================================================
   和技云官网 - 主样式表（深色科技风）
   零海外依赖 · SEO/GEO友好 · 语义化HTML
   版本: v2.0 | 日期: 2026-06-17
   匹配原站 www.hejiy.com 深色主题风格
   ============================================================ */

/* ===== 1. CSS 变量 & 设计系统 ===== */
:root {
    /* 主色系 */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #f59e0b;
    --accent: #06b6d4;

    /* 深色背景层级 */
    --dark-bg: #0a0a0f;
    --card-bg: #12121a;
    --card-bg-hover: #1a1a24;
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(99, 102, 241, 0.3);

    /* 文字色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* 语义色 */
    --success: #10b981;
    --error: #ef4444;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* 间距 */
    --section-padding: 120px 0;
    --container-width: 1200px;
    --container-padding: 24px;

    /* 字体 */
    --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;

    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== 2. Reset & 基础 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===== 3. 数据流动画背景（全站） ===== */
.data-streams {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.data-stream {
    position: absolute;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--primary), var(--secondary), transparent);
    opacity: 0.3;
    animation: streamFlow 8s linear infinite;
}

@keyframes streamFlow {
    0%   { transform: translateY(-100%); opacity: 0; }
    10%  { opacity: 0.3; }
    90%  { opacity: 0.3; }
    100% { transform: translateY(100vh); opacity: 0; }
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
    50%      { transform: translate(20px, -30px) scale(1.5); opacity: 0.3; }
}

.hexagon {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    opacity: 0.3;
    animation: hexagonRotate 20s linear infinite;
}

@keyframes hexagonRotate {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.circuit-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    animation: circuitPulse 3s ease-in-out infinite;
}

@keyframes circuitPulse {
    0%, 100% { opacity: 0.1; width: 50px; }
    50%      { opacity: 0.4; width: 150px; }
}

.data-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: nodeBlink 2s ease-in-out infinite;
}

@keyframes nodeBlink {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50%      { transform: scale(1.5); opacity: 1; }
}

/* ===== 4. 导航栏（毛玻璃效果） ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    flex-shrink: 0;
}

.site-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.site-logo .logo-icon svg {
    width: 20px;
    height: 20px;
}

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav .nav-link,
.main-nav a {
    display: block;
    padding: 8px 16px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 0.3s;
}

.main-nav .nav-link:hover,
.main-nav a:hover {
    color: var(--text-primary);
}

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a::after,
.nav-dropdown > .nav-link::after {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-left: 6px;
    vertical-align: middle;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover > a::after,
.nav-dropdown:hover > .nav-link::after {
    transform: rotate(-135deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.nav-dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-dropdown-menu a:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

/* CTA 按钮 */
.nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 5. 移动端菜单面板 ===== */
.mobile-menu-panel {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px;
    z-index: 999;
    border-bottom: 1px solid var(--card-border);
}

.mobile-menu-panel.active {
    display: block;
}

.mobile-menu-panel a {
    display: block;
    padding: 15px 0;
    font-size: 1rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--card-border);
}

.mobile-menu-panel a:last-child {
    border-bottom: none;
}

.mobile-menu-panel .nav-cta {
    display: block;
    text-align: center;
    margin-top: 15px;
}

/* ===== 6. Hero 主视觉 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

/* Hero 光晕背景 */
.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 32px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content .hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--card-border);
}

.hero-stat {
    text-align: center;
}

.hero-stat .stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.hero-stat .stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ===== 7. 按钮系统 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    line-height: 1.5;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    color: var(--text-primary);
}

.btn-white {
    background: #ffffff;
    color: var(--primary);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.btn-outline-white {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.8125rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== 8. 区块通用 ===== */
.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 3rem);
    font-weight: 700;
    margin-bottom: 20px;
}

.section-header .section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

/* 区域背景变体 */
.bg-dark {
    background: var(--dark-bg);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

/* 带淡色叠加的背景 */
.bg-tint {
    background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.03), transparent);
}

/* ===== 9. 卡片系统 ===== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.4s;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--card-border-hover);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(245, 158, 11, 0.2));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.75rem;
}

.card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.8;
}

.card-features {
    margin-top: 24px;
}

.card-features li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-features li::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--secondary);
    border-radius: 50%;
    flex-shrink: 0;
}

.card-price {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-price .tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 4px 12px;
    border-radius: 100px;
}

/* ===== 10. 优势卡片 ===== */
.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 48px;
    display: flex;
    gap: 32px;
    transition: all 0.4s;
}

.feature-card:hover {
    border-color: var(--card-border-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 2rem;
}

.feature-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.8;
}

/* ===== 11. GEO 区块 ===== */
.geo-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.geo-intro-text h2 {
    font-size: clamp(1.5rem, 3vw, 2.625rem);
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.geo-intro-text h2 span,
.geo-intro-text h2 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.geo-intro-text p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.9;
}

.geo-dimensions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 56px;
}

.geo-dimension {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.geo-dimension:hover {
    border-color: var(--card-border-hover);
}

.geo-dimension .dim-number {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.geo-dimension h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.geo-dimension p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* GEO 右侧视觉卡片 */
.geo-visual-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 48px;
    position: relative;
}

.geo-visual-card::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 0 0 4px 4px;
}

.geo-visual-dim {
    padding: 24px 0;
    border-bottom: 1px solid var(--card-border);
}

.geo-visual-dim:last-child {
    border-bottom: none;
}

.geo-visual-dim .dim-label {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.geo-visual-dim .dim-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.geo-visual-dim .dim-desc {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== 12. 用户画像卡片 ===== */
.persona-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.persona-card:hover {
    border-color: var(--card-border-hover);
}

.persona-card .persona-stage {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.persona-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.persona-recommend {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--card-border);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.persona-recommend strong {
    color: var(--primary);
}

/* ===== 13. 服务流程 ===== */
.process-flow {
    display: flex;
    gap: 0;
    position: relative;
}

.process-flow::before {
    content: "";
    position: absolute;
    top: 48px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.3;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.process-step .step-number {
    width: 96px;
    height: 96px;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    transition: all var(--transition-base);
}

.process-step:hover .step-number {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-color: transparent;
    transform: scale(1.1);
}

.process-step h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== 14. 客户案例 / 评价 ===== */
.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 32px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.testimonial-card:hover {
    border-color: var(--card-border-hover);
}

.testimonial-card::before {
    content: "\201C";
    position: absolute;
    top: 20px;
    right: 28px;
    font-size: 4rem;
    line-height: 1;
    color: var(--primary-light);
    opacity: 0.1;
    font-family: Georgia, serif;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.author-name {
    font-size: 1rem;
    font-weight: 600;
}

.author-role {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== 15. CTA 区块 ===== */
.cta-section {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.cta-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 32px;
    padding: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3vw, 2.625rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== 16. 微信悬浮按钮 ===== */
.wechat-float {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 999;
}

.wechat-btn {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #07c160, #06ad56);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(7, 193, 96, 0.4);
    transition: all var(--transition-base);
}

.wechat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(7, 193, 96, 0.6);
}

.wechat-btn svg {
    width: 30px;
    height: 30px;
    fill: #ffffff;
}

/* ===== 17. 微信弹窗 ===== */
.wechat-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.wechat-modal.active {
    opacity: 1;
    visibility: visible;
}

.wechat-modal-content {
    background: #ffffff;
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: scale(0.9);
    transition: transform var(--transition-base);
    position: relative;
}

.wechat-modal.active .wechat-modal-content {
    transform: scale(1);
}

.wechat-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: #f5f5f5;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.wechat-modal-close:hover {
    background: #e0e0e0;
}

.wechat-modal-close svg {
    width: 20px;
    height: 20px;
    stroke: #666;
}

.wechat-modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.wechat-modal-subtitle {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 24px;
}

.wechat-modal-qr {
    width: 200px;
    height: 200px;
    margin: 0 auto 16px;
    background: #f8f8f8;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.wechat-modal-qr img {
    width: 180px;
    height: 180px;
    object-fit: contain;
}

.wechat-modal-tip {
    font-size: 0.875rem;
    color: #07c160;
    font-weight: 500;
}

/* ===== 18. 页脚 ===== */
.site-footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--card-border);
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-col h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.footer-col p {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--text-primary);
}

.footer-col .tel-link {
    color: var(--primary) !important;
    font-weight: 500;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.social-link svg {
    width: 18px;
    height: 18px;
    stroke: var(--text-secondary);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-badges {
    display: flex;
    gap: 16px;
    align-items: center;
}

.footer-badges .badge-item {
    padding: 4px 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== 19. 页面Banner（列表/内容/关于/联系） ===== */
.page-banner {
    min-height: 40vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
    text-align: center;
}

.page-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.page-banner-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.page-banner-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.page-banner p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 20. 面包屑 ===== */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

.breadcrumb a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--text-primary);
}

.breadcrumb .separator {
    margin: 0 8px;
}

.breadcrumb .current {
    color: var(--text-secondary);
}

/* ===== 21. 列表页 ===== */
.list-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    padding: 48px 0;
}

.list-main {
    min-width: 0;
}

.list-item {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--card-border);
    transition: all var(--transition-base);
}

.list-item:first-child {
    padding-top: 0;
}

.list-item:hover {
    padding-left: 12px;
}

.list-item-thumb {
    width: 240px;
    height: 160px;
    border-radius: var(--radius-md);
    background: var(--card-bg);
    overflow: hidden;
    flex-shrink: 0;
}

.list-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.list-item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.list-item-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.list-item-info h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.list-item-info h3 a:hover {
    color: var(--primary);
}

.list-item-excerpt {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.list-item-meta {
    display: flex;
    gap: 20px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: auto;
}

.list-item-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 侧边栏 */
.sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-widget h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary);
}

.sidebar-widget ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--card-border);
}

.sidebar-widget ul li:last-child {
    border-bottom: none;
}

.sidebar-widget ul li a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.sidebar-widget ul li a:hover {
    color: var(--text-primary);
}

.sidebar-about {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== 22. 分页器 ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
    padding-top: 32px;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.pagination .active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.pagination .disabled {
    color: var(--text-muted);
    pointer-events: none;
}

/* ===== 23. 内容详情页 ===== */
.content-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 40px;
    padding: 48px 0;
}

.article-main {
    min-width: 0;
}

.article-header {
    margin-bottom: 32px;
}

.article-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.article-meta {
    display: flex;
    gap: 20px;
    font-size: 0.875rem;
    color: var(--text-muted);
    padding-bottom: 20px;
    border-bottom: 1px solid var(--card-border);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 文章摘要 */
.article-summary {
    background: rgba(99, 102, 241, 0.08);
    border-left: 4px solid var(--primary);
    padding: 20px 24px;
    margin-bottom: 32px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 文章正文 */
.article-body {
    font-size: 1.0625rem;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 20px;
    padding-top: 20px;
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
    margin: 16px 0 24px;
    padding-left: 24px;
}

.article-body ul li,
.article-body ol li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 4px;
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body blockquote {
    border-left: 4px solid var(--primary-light);
    background: rgba(99, 102, 241, 0.05);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-body img {
    border-radius: var(--radius-md);
    margin: 24px auto;
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 文章底部导航 */
.article-nav {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.article-nav a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    max-width: 45%;
}

.article-nav a:hover {
    color: var(--primary);
}

.article-nav .nav-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

/* 相关推荐 */
.related-posts {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--card-border);
}

.related-posts h3 {
    margin-bottom: 24px;
    color: var(--text-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all var(--transition-base);
}

.related-item:hover {
    border-color: var(--card-border-hover);
}

.related-item h4 {
    font-size: 0.9375rem;
    margin-bottom: 8px;
}

.related-item h4 a {
    color: var(--text-primary);
}

.related-item h4 a:hover {
    color: var(--primary);
}

.related-item .related-date {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== 24. FAQ 区块 ===== */
.faq-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--card-border);
}

.faq-section h3 {
    margin-bottom: 24px;
    color: var(--text-primary);
}

.faq-item {
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--card-bg);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 18px 24px;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question .faq-icon {
    width: 24px;
    height: 24px;
    position: relative;
    flex-shrink: 0;
}

.faq-question .faq-icon::before,
.faq-question .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--text-muted);
    transition: all var(--transition-fast);
}

.faq-question .faq-icon::before {
    top: 11px;
    left: 4px;
    width: 16px;
    height: 2px;
}

.faq-question .faq-icon::after {
    top: 4px;
    left: 11px;
    width: 2px;
    height: 16px;
}

.faq-item.active .faq-icon::after {
    transform: rotate(90deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== 25. 关于我们页 ===== */
.about-section {
    padding: 80px 0;
}

.about-section h2 {
    margin-bottom: 32px;
    text-align: center;
}

/* 资质荣誉网格 */
.honors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.honor-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.honor-item:hover {
    border-color: var(--card-border-hover);
    transform: translateY(-4px);
}

.honor-item .honor-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.honor-item h4 {
    margin-bottom: 8px;
}

.honor-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 发展历程时间线 */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--card-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -34px;
    top: 4px;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border: 3px solid var(--dark-bg);
    border-radius: 50%;
}

.timeline-year {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
}

.timeline-item h4 {
    margin-bottom: 4px;
}

.timeline-item p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 创始人 */
.founder-card {
    display: flex;
    gap: 40px;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.founder-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.founder-info h3 {
    margin-bottom: 8px;
}

.founder-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.founder-tags span {
    font-size: 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 100px;
}

/* ===== 26. 联系我们页 ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    margin-bottom: 20px;
}

.contact-detail {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-detail .contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-detail h4 {
    margin-bottom: 4px;
    font-size: 0.9375rem;
}

.contact-detail p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 留言表单 */
.contact-form-block {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
}

.contact-form-block h3 {
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group label .required {
    color: var(--error);
    margin-left: 2px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    font-size: 0.9375rem;
    font-family: var(--font-family);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

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

.form-group .form-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ===== 27. 404 页面 ===== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.error-code {
    font-size: 8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.error-page h2 {
    margin-bottom: 12px;
}

.error-page p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.error-links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.error-links a {
    padding: 10px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.error-links a:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

/* ===== 28. Grid 布局工具 ===== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

/* ===== 29. 动画效果 ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 30. 辅助类 ===== */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ===== 31. 关于我们 - 企业信息区块 ===== */
.about-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

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

.about-info-item .info-icon {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.about-info-item h4 {
    font-size: 0.9375rem;
    margin-bottom: 4px;
}

.about-info-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}