/* ============================================
   音容元 InRoMeta - 主样式表
   紫色科技风 + 深色/浅色双主题
   ============================================ */

/* CSS 变量 - 深色主题（默认） */
:root,
[data-theme="dark"] {
    /* 主色调 - 紫色系 */
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-lighter: #a5b4fc;
    --color-primary-dark: #4f46e5;
    --color-primary-darker: #4338ca;
    
    /* 强调色 - 紫蓝渐变 */
    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --accent-dark: #7c3aed;
    
    /* 辅助色 - 青色 */
    --color-cyan: #06b6d4;
    --color-cyan-light: #22d3ee;
    
    /* 背景色 */
    --bg-primary: #0f0f23;
    --bg-secondary: #151535;
    --bg-tertiary: #1e1e45;
    --bg-card: rgba(30, 30, 69, 0.6);
    --bg-card-hover: rgba(45, 45, 85, 0.8);
    --bg-elevated: #1a1a40;
    
    /* 文字颜色 */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0f0f23;
    
    /* 边框 */
    --border-primary: rgba(139, 92, 246, 0.3);
    --border-secondary: rgba(255, 255, 255, 0.08);
    --border-tertiary: rgba(255, 255, 255, 0.05);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.3);
    --shadow-glow-soft: 0 0 20px rgba(139, 92, 246, 0.15);
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --gradient-primary-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
    --gradient-bg: linear-gradient(180deg, #0f0f23 0%, #151535 40%, #0f0f23 100%);
    --gradient-hero: radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.25) 0%, transparent 50%),
                     radial-gradient(ellipse at 70% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 50%),
                     linear-gradient(180deg, #0f0f23 0%, #151535 100%);
    --gradient-card: linear-gradient(145deg, rgba(30, 30, 69, 0.8) 0%, rgba(21, 21, 53, 0.6) 100%);
    
    /* 网格线 */
    --grid-color: rgba(139, 92, 246, 0.04);
}

/* 浅色主题 */
[data-theme="light"] {
    /* 背景色 */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --bg-elevated: #ffffff;
    
    /* 文字颜色 */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    /* 边框 */
    --border-primary: rgba(99, 102, 241, 0.3);
    --border-secondary: rgba(15, 23, 42, 0.08);
    --border-tertiary: rgba(15, 23, 42, 0.05);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 8px 32px rgba(15, 23, 42, 0.1);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);
    --shadow-glow-soft: 0 0 20px rgba(99, 102, 241, 0.1);
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --gradient-primary-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    --gradient-bg: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 40%, #f8fafc 100%);
    --gradient-hero: radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                     radial-gradient(ellipse at 70% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                     linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 1) 0%, rgba(248, 250, 252, 0.9) 100%);
    
    /* 网格线 */
    --grid-color: rgba(99, 102, 241, 0.03);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

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

ul {
    list-style: none;
}

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

/* 容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 文字工具类 */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 15px;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary-light);
    border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--gradient-primary-soft);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
    border-radius: 14px;
}

.btn-full {
    width: 100%;
}

/* 区块通用样式 */
section {
    padding: 100px 0;
    position: relative;
    background: var(--bg-primary);
    transition: background-color 0.4s ease;
}

section:nth-of-type(even) {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
    color: var(--color-primary-light);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 42px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 17px;
    color: var(--text-tertiary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

.section-subnote {
    margin-top: 12px;
    font-size: 14px;
    color: var(--color-primary-light);
}

/* 圆角变量 */
:root {
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   主题切换按钮
   ============================================ */
.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 100px;
    padding: 4px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.theme-toggle:hover {
    border-color: var(--border-primary);
}

.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-tertiary);
    transition: var(--transition-fast);
    z-index: 1;
    position: relative;
}

.theme-toggle-btn.active {
    color: #ffffff;
}

.theme-toggle-btn svg {
    width: 16px;
    height: 16px;
}

.theme-toggle-slider {
    position: absolute;
    top: 4px;
    left: 4px;
    height: calc(100% - 8px);
    width: calc(50% - 4px);
    background: var(--gradient-primary);
    border-radius: 100px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] .theme-toggle-slider {
    transform: translateX(100%);
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: color-mix(in srgb, var(--bg-primary) 85%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-secondary);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo .logo-icon {
    width: 52px;
    height: 52px;
}

.logo-icon {
    width: 60px;
    height: 42px;
    flex-shrink: 0;
}

.logo-icon svg,
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-cn {
    font-family: 'Noto Serif SC', serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-en {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--color-primary-light);
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    position: relative;
    font-weight: 400;
}

.nav-link:hover {
    color: var(--color-primary-light);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
    border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--color-primary-light);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-cta .btn {
    padding: 10px 24px;
    font-size: 14px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary-light);
    border-radius: 50%;
    opacity: 0.4;
    animation: float 15s infinite ease-in-out;
    box-shadow: 0 0 10px var(--color-primary);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.6;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--color-primary-light);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--color-primary);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 44px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 15px;
    padding: 10px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: 100px;
    backdrop-filter: blur(10px);
    transition: var(--transition-fast);
}

.hero-feature:hover {
    border-color: var(--border-primary);
    transform: translateY(-2px);
}

.feature-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}

.feature-icon svg {
    width: 16px;
    height: 16px;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 13px;
    z-index: 1;
}

.scroll-indicator {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    display: block;
    width: 4px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 2px;
    animation: scrollDown 1.5s infinite;
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(16px);
    }
}

/* ============================================
   行业痛点
   ============================================ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.stat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

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

.stat-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    line-height: 1;
}

.stat-unit {
    font-size: 28px;
    margin-left: 4px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-zero {
    font-family: 'Noto Serif SC', serif;
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-unit-text {
    font-size: 24px;
    color: var(--color-primary-light);
    margin-left: 8px;
}

.stat-label {
    font-size: 15px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.stat-bar {
    height: 4px;
    background: var(--border-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.stat-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 五无困境 */
.five-no-section {
    margin-bottom: 60px;
}

.five-no-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    font-family: 'Noto Serif SC', serif;
    color: var(--text-primary);
}

.title-bracket {
    color: var(--color-primary-light);
    font-weight: 300;
}

.five-no-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.five-no-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
}

.five-no-item:hover {
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.five-no-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 18px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    transition: var(--transition-normal);
}

.five-no-item:hover .five-no-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
}

.five-no-icon svg {
    width: 26px;
    height: 26px;
}

.five-no-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.five-no-item p {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* 引用框 */
.quote-box {
    max-width: 900px;
    margin: 0 auto;
    padding: 36px 40px 36px 56px;
    background: var(--gradient-primary-soft);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 28px;
    left: 20px;
    width: 28px;
    height: 28px;
    color: var(--color-primary);
    opacity: 0.5;
}

.quote-box p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

/* ============================================
   核心体系
   ============================================ */
.system-flow {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.flow-step {
    flex: 1;
    min-width: 280px;
    max-width: 360px;
    position: relative;
}

.step-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 80px;
    font-weight: 900;
    color: color-mix(in srgb, var(--color-primary) 15%, transparent);
    position: absolute;
    top: -16px;
    right: 20px;
    z-index: 0;
    line-height: 1;
}

.step-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    position: relative;
    z-index: 1;
    transition: var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.step-card:hover {
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.step-icon-wrap {
    width: 52px;
    height: 52px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.step-icon-wrap svg {
    width: 24px;
    height: 24px;
}

.step-header h3 {
    font-size: 22px;
    color: var(--text-primary);
}

.step-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-secondary);
}

.step-list {
    margin-bottom: 20px;
    flex-grow: 1;
}

.step-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.list-check {
    color: var(--color-primary-light);
    font-weight: 700;
    flex-shrink: 0;
}

.step-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
    color: var(--color-primary-light);
    font-size: 12px;
    font-weight: 500;
    align-self: flex-start;
}

.flow-arrow {
    display: flex;
    align-items: center;
    color: var(--color-primary);
    opacity: 0.5;
    flex-shrink: 0;
}

.flow-arrow svg {
    width: 50px;
    height: 20px;
}

/* 双权保护 */
.dual-rights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.right-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.right-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--gradient-primary-soft) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-normal);
}

.right-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-primary);
}

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

.right-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.portrait-right .right-icon {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.voice-right .right-icon {
    background: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
    color: white;
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
}

.right-icon svg {
    width: 30px;
    height: 30px;
}

.right-card h3 {
    font-size: 24px;
    margin-bottom: 4px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.right-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.right-card ul {
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.right-card ul li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid var(--border-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.right-card ul li::before {
    content: '✓';
    color: var(--color-primary-light);
    font-weight: 700;
}

.right-pain {
    padding: 16px 20px;
    background: color-mix(in srgb, #ef4444 10%, transparent);
    border: 1px solid color-mix(in srgb, #ef4444 30%, transparent);
    border-radius: var(--radius-md);
    position: relative;
    z-index: 1;
}

.pain-label {
    display: inline-block;
    padding: 3px 10px;
    background: color-mix(in srgb, #ef4444 20%, transparent);
    color: #f87171;
    font-size: 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    font-weight: 500;
}

.right-pain p {
    font-size: 13px;
    color: #fca5a5;
    line-height: 1.6;
}

/* ============================================
   核心能力
   ============================================ */
.cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.cap-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cap-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary-soft);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.cap-card:hover {
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.cap-card:hover::after {
    opacity: 0.3;
}

.cap-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 48px;
    font-weight: 900;
    color: color-mix(in srgb, var(--color-primary) 20%, transparent);
    position: absolute;
    top: 16px;
    right: 20px;
    line-height: 1;
    transition: var(--transition-normal);
}

.cap-card:hover .cap-number {
    color: color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.cap-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    position: relative;
    z-index: 1;
    transition: var(--transition-normal);
}

.cap-card:hover .cap-icon {
    transform: scale(1.05);
}

.cap-icon svg {
    width: 26px;
    height: 26px;
}

.cap-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.cap-card p {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cap-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.cap-tags span {
    padding: 4px 10px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
    color: var(--color-primary-light);
    font-size: 12px;
}

.cap-card-wide {
    grid-column: span 4;
    display: flex;
    align-items: center;
    gap: 32px;
}

.cap-card-wide .cap-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.cap-card-wide h3 {
    margin-bottom: 8px;
}

/* 价值主张 */
.value-proposition {
    margin-top: 80px;
}

.vp-title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--text-primary);
}

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

.vp-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition-normal);
}

.vp-item:hover {
    border-color: var(--border-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.vp-icon-wrap {
    width: 68px;
    height: 68px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
    transition: var(--transition-normal);
}

.vp-item:hover .vp-icon-wrap {
    transform: scale(1.1);
}

.vp-icon-wrap svg {
    width: 30px;
    height: 30px;
}

.vp-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.vp-item p {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
}

/* ============================================
   授权管控
   ============================================ */
.auth-three-d {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.auth-dimension {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition-normal);
    position: relative;
}

.auth-dimension:hover {
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.auth-dimension-center {
    transform: scale(1.03);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-glow-soft);
}

.auth-dimension-center:hover {
    transform: scale(1.03) translateY(-6px);
}

.auth-d-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 20px;
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.auth-d-icon svg {
    width: 30px;
    height: 30px;
}

.auth-d-number {
    position: absolute;
    top: 24px;
    right: 28px;
    font-family: 'Noto Serif SC', serif;
    font-size: 64px;
    font-weight: 900;
    color: color-mix(in srgb, var(--color-primary) 15%, transparent);
    line-height: 1;
}

.auth-dimension h3 {
    font-size: 22px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.auth-d-sub {
    color: var(--color-primary-light);
    font-size: 14px;
    margin-bottom: 16px;
    font-weight: 500;
}

.auth-dimension > p {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.auth-d-list {
    padding-top: 20px;
    border-top: 1px solid var(--border-secondary);
}

.auth-d-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.auth-d-list li::before {
    content: '✓';
    color: var(--color-primary-light);
    font-weight: 700;
}

/* 授权流程 */
.auth-process {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-xl);
    padding: 44px 40px;
    text-align: center;
}

.auth-process-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 32px;
    color: var(--text-primary);
}

.auth-process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.auth-step {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 100px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition-fast);
}

.auth-step:hover {
    border-color: var(--border-primary);
    background: var(--gradient-primary-soft);
}

.auth-step-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}

.auth-step-icon svg {
    width: 18px;
    height: 18px;
}

.auth-step-arrow {
    color: var(--color-primary);
    font-size: 20px;
    font-weight: 300;
}

/* ============================================
   产品服务
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.product-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.product-card:hover {
    border-color: var(--border-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 180px;
    position: relative;
    overflow: hidden;
}

.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.2) 100%);
}

.product-img-1 { background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%); }
.product-img-2 { background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%); }
.product-img-3 { background: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%); }
.product-img-4 { background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%); }
.product-img-5 { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); }
.product-img-6 { background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%); }

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--bg-primary);
    color: var(--color-primary-light);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
    z-index: 2;
    border: 1px solid var(--border-primary);
}

.product-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.85);
    transition: var(--transition-normal);
    z-index: 1;
}

.product-overlay svg {
    width: 56px;
    height: 56px;
    transition: var(--transition-normal);
}

.product-card:hover .product-overlay svg {
    transform: scale(1.15);
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.product-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.price-symbol {
    font-size: 14px;
    color: var(--color-primary-light);
    font-weight: 600;
}

.price-value {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-unit {
    font-size: 13px;
    color: var(--text-muted);
}

.btn-product {
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: white;
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-product:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

/* 声音素材库 */
.voice-library {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
}

.vl-header {
    text-align: center;
    margin-bottom: 36px;
}

.vl-header h3 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.vl-header p {
    font-size: 14px;
    color: var(--text-tertiary);
}

.vl-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.vl-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition-normal);
}

.vl-card:hover {
    border-color: var(--border-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.vl-avatar {
    margin-bottom: 14px;
}

.vl-avatar-img {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: 600;
    font-family: 'Noto Serif SC', serif;
}

.vl-info {
    margin-bottom: 12px;
}

.vl-info h4 {
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.vl-info p {
    font-size: 12px;
    color: var(--text-muted);
}

.vl-wave {
    margin-bottom: 14px;
    height: 28px;
    display: flex;
    align-items: center;
}

.wave-bars {
    display: flex;
    align-items: center;
    gap: 3px;
    width: 100%;
    height: 100%;
}

.wave-bars span {
    flex: 1;
    background: var(--gradient-primary);
    border-radius: 2px;
    animation: wave 1.2s ease-in-out infinite;
    opacity: 0.7;
}

.wave-bars span:nth-child(1) { animation-delay: 0s; height: 30%; }
.wave-bars span:nth-child(2) { animation-delay: 0.1s; height: 60%; }
.wave-bars span:nth-child(3) { animation-delay: 0.2s; height: 40%; }
.wave-bars span:nth-child(4) { animation-delay: 0.3s; height: 80%; }
.wave-bars span:nth-child(5) { animation-delay: 0.4s; height: 50%; }
.wave-bars span:nth-child(6) { animation-delay: 0.5s; height: 70%; }
.wave-bars span:nth-child(7) { animation-delay: 0.6s; height: 45%; }
.wave-bars span:nth-child(8) { animation-delay: 0.7s; height: 90%; }
.wave-bars span:nth-child(9) { animation-delay: 0.8s; height: 35%; }
.wave-bars span:nth-child(10) { animation-delay: 0.9s; height: 65%; }

@keyframes wave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.5); }
}

.vl-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.vl-price {
    font-size: 14px;
    color: var(--color-primary-light);
    font-weight: 600;
}

.btn-vl {
    padding: 6px 16px;
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary-light);
    font-size: 12px;
    border-radius: 100px;
    transition: var(--transition-fast);
}

.btn-vl:hover {
    background: var(--gradient-primary-soft);
}

/* ============================================
   市场前景
   ============================================ */
.market-tam {
    text-align: center;
    margin-bottom: 60px;
}

.tam-main {
    display: inline-block;
    padding: 44px 80px;
    background: var(--gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    position: relative;
    box-shadow: var(--shadow-glow-soft);
}

.tam-main::before,
.tam-main::after {
    content: '';
    position: absolute;
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-primary);
}

.tam-main::before {
    top: -1px;
    left: -1px;
    border-right: none;
    border-bottom: none;
    border-radius: 12px 0 0 0;
}

.tam-main::after {
    bottom: -1px;
    right: -1px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 12px 0;
}

.tam-label {
    font-size: 16px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.tam-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
}

.tam-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 64px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tam-unit {
    font-size: 28px;
    color: var(--color-primary-light);
    font-weight: 600;
}

.market-layers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.layer-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.layer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.layer-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-primary);
}

.layer-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.layer-card h3 {
    font-size: 22px;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.layer-sub {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.layer-value {
    font-family: 'Noto Serif SC', serif;
    font-size: 32px;
    font-weight: 900;
    color: var(--color-primary-light);
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-secondary);
}

.layer-list li {
    font-size: 13px;
    color: var(--text-tertiary);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.layer-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
    top: 0;
}

/* 政策驱动 */
.policy-drivers {
    margin-bottom: 60px;
}

.pd-title {
    text-align: center;
    font-size: 24px;
    margin-bottom: 32px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.pd-icon {
    color: var(--color-primary-light);
    display: flex;
}

.pd-icon svg {
    width: 24px;
    height: 24px;
}

.pd-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.pd-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    border-left: 3px solid var(--color-primary);
    transition: var(--transition-normal);
}

.pd-item:hover {
    border-color: var(--border-primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.pd-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gradient-primary-soft);
    color: var(--color-primary-light);
    font-size: 12px;
    font-weight: 500;
    border-radius: 6px;
    margin-bottom: 12px;
}

.pd-item h4 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.pd-item p {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
}

/* 市场洞察 */
.market-insight {
    padding: 32px 40px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.market-insight p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.market-insight strong {
    color: var(--color-primary-light);
    font-weight: 600;
}

/* ============================================
   全民创业
   ============================================ */
.promo-groups {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
    margin-bottom: 60px;
}

.promo-group {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition-normal);
}

.promo-group:hover {
    border-color: var(--border-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.promo-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    transition: var(--transition-normal);
}

.promo-group:hover .promo-icon {
    transform: scale(1.1);
}

.promo-icon svg {
    width: 24px;
    height: 24px;
}

.promo-group h3 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.promo-group p {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* 核心优势 */
.promo-advantages {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
}

.pa-title {
    text-align: center;
    font-size: 24px;
    margin-bottom: 36px;
    color: var(--text-primary);
}

.pa-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pa-item {
    display: flex;
    gap: 16px;
}

.pa-check {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.pa-item h4 {
    font-size: 17px;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.pa-item p {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* ============================================
   AI数字祠堂
   ============================================ */
.heritage {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.heritage::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 10%, transparent) 0%, transparent 70%);
    border-radius: 50%;
}

.heritage-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.heritage-tag {
    background: var(--gradient-primary-soft);
    border-color: var(--border-primary);
}

.heritage-title {
    font-size: 36px;
    margin-bottom: 16px;
    line-height: 1.3;
}

.heritage-subtitle {
    font-size: 16px;
    color: var(--text-tertiary);
    margin-bottom: 36px;
}

.heritage-features {
    margin-bottom: 36px;
}

.hf-item {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    padding: 18px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.hf-item:hover {
    border-color: var(--border-primary);
    transform: translateX(6px);
    box-shadow: var(--shadow-sm);
}

.hf-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: var(--gradient-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}

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

.hf-item h4 {
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.hf-item p {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.6;
}

.heritage-quote {
    text-align: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    color: var(--color-primary-light);
    padding: 24px;
    border-top: 1px solid var(--border-primary);
    border-bottom: 1px solid var(--border-primary);
    font-style: italic;
}

/* 视觉区 */
.heritage-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hv-orb {
    position: absolute;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 25%, transparent) 0%, transparent 70%);
    animation: orbFloat 6s ease-in-out infinite;
}

@keyframes orbFloat {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hv-particles {
    position: absolute;
    inset: 0;
}

.hv-particles::before,
.hv-particles::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-primary);
}

.hv-particles::before {
    top: 20%;
    left: 30%;
    animation: particleDrift 8s ease-in-out infinite;
}

.hv-particles::after {
    bottom: 30%;
    right: 25%;
    animation: particleDrift 10s ease-in-out infinite reverse;
}

@keyframes particleDrift {
    0%, 100% { transform: translate(0, 0); opacity: 0.3; }
    25% { transform: translate(30px, -20px); opacity: 0.8; }
    50% { transform: translate(-20px, 20px); opacity: 0.5; }
    75% { transform: translate(20px, 30px); opacity: 0.7; }
}

.hv-center {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hv-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 50%, transparent) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.hv-icon {
    width: 100px;
    height: 100px;
    color: var(--color-primary-light);
    position: relative;
    z-index: 1;
}

/* ============================================
   联系我们
   ============================================ */
.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-title {
    font-size: 38px;
    margin-bottom: 16px;
    line-height: 1.3;
    text-align: left;
}

.contact-left .section-tag {
    margin-bottom: 24px;
}

.contact-desc {
    font-size: 17px;
    color: var(--text-tertiary);
    margin-bottom: 24px;
}

.contact-quote {
    font-family: 'Noto Serif SC', serif;
    font-size: 17px;
    color: var(--color-primary-light);
    font-style: italic;
    padding: 20px 24px;
    background: var(--gradient-primary-soft);
    border-left: 3px solid var(--color-primary);
    margin-bottom: 40px;
    line-height: 1.7;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ci-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.ci-item:hover {
    border-color: var(--border-primary);
    transform: translateX(4px);
}

.ci-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.ci-icon svg {
    width: 22px;
    height: 22px;
}

.ci-item h4 {
    font-size: 13px;
    margin-bottom: 4px;
    color: var(--text-muted);
    font-weight: 400;
}

.ci-item p {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 500;
}

/* 表单 */
.contact-form-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
    font-size: 26px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 32px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition-fast);
    outline: none;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 10%, transparent);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 9L1 4h10z' fill='%236366f1'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form .btn {
    margin-top: 8px;
    padding: 14px;
    font-size: 16px;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-secondary);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-secondary);
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 44px;
    height: 44px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 15px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.footer-col ul li a {
    font-size: 14px;
    color: var(--text-tertiary);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a:hover {
    color: var(--color-primary-light);
}

/* ============================================
   回到顶部
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   响应式设计
   ============================================ */

/* 大屏 - 1200px以下 */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    
    .nav-container {
        padding: 0 30px;
    }
    
    .nav-left {
        gap: 28px;
    }
    
    .nav-menu {
        gap: 22px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .stats-row,
    .market-layers,
    .auth-three-d,
    .vp-grid,
    .pa-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .five-no-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cap-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cap-card-wide {
        grid-column: span 2;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .vl-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .promo-groups {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .auth-dimension-center {
        transform: scale(1);
    }
    
    .auth-dimension-center:hover {
        transform: translateY(-6px);
    }
}

/* 平板 - 992px以下 */
@media (max-width: 992px) {
    section {
        padding: 70px 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-features {
        gap: 16px;
    }
    
    .system-flow {
        flex-direction: column;
        align-items: center;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .dual-rights,
    .heritage-inner,
    .contact-inner,
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .heritage-visual {
        height: 350px;
        order: -1;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pd-grid {
        grid-template-columns: 1fr;
    }
    
    .tam-main {
        padding: 36px 50px;
    }
    
    .tam-number {
        font-size: 52px;
    }
}

/* 平板小屏 - 768px以下 */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-container {
        padding: 0 20px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-desc {
        font-size: 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 32px;
    }
    
    .hero-features {
        gap: 12px;
        margin-bottom: 36px;
    }
    
    .hero-feature {
        font-size: 13px;
        padding: 8px 14px;
    }
    
    .hero-badge {
        font-size: 12px;
        padding: 8px 18px;
        margin-bottom: 24px;
    }
    
    .stats-row,
    .market-layers,
    .auth-three-d,
    .vp-grid,
    .pa-grid,
    .product-grid,
    .vl-grid {
        grid-template-columns: 1fr;
    }
    
    .five-no-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    
    .cap-grid {
        grid-template-columns: 1fr;
    }
    
    .cap-card-wide {
        grid-column: span 1;
        flex-direction: column;
        text-align: left;
    }
    
    .promo-groups {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .auth-process-steps {
        flex-direction: column;
    }
    
    .auth-step-arrow {
        transform: rotate(90deg);
    }
    
    .tam-main {
        padding: 32px 40px;
    }
    
    .tam-number {
        font-size: 44px;
    }
    
    .tam-unit {
        font-size: 22px;
    }
    
    .contact-form-card {
        padding: 32px 24px;
    }
    
    .footer-top {
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
    
    .quote-box {
        padding: 28px 24px 28px 44px;
    }
    
    .quote-icon {
        left: 14px;
        top: 22px;
    }
    
    .voice-library,
    .promo-advantages,
    .auth-process {
        padding: 36px 24px;
    }
}

/* 手机 - 480px以下 */
@media (max-width: 480px) {
    .section-title {
        font-size: 24px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-features {
        justify-content: flex-start;
    }
    
    .five-no-grid {
        grid-template-columns: 1fr;
    }
    
    .promo-groups {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 15px;
    }
    
    .theme-toggle-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .theme-toggle-btn span {
        display: none;
    }
    
    .heritage-title {
        font-size: 28px;
    }
    
    .contact-title {
        font-size: 28px;
    }
    
    .pa-item {
        flex-direction: column;
        gap: 12px;
    }
}

/* 超小屏 - 360px以下 */
@media (max-width: 360px) {
    .hero-title {
        font-size: 24px;
    }
    
    .stat-number,
    .stat-zero {
        font-size: 44px;
    }
    
    .cap-card,
    .product-card {
        padding: 24px 20px;
    }
}