/* ========================================
   LIANHAI MEDIA - 高端官网样式
   ======================================== */

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

:root {
    /* 主色调 - 轻奢金 */
    --gold-50: #fdf9ed;
    --gold-100: #f7ecc8;
    --gold-200: #ecd89a;
    --gold-300: #c9a962;
    --gold-400: #b8954d;
    --gold-500: #9f7f3d;
    
    /* 深蓝色系 - 主色 */
    --navy-900: #0f1f3d;
    --navy-800: #1a2d50;
    --navy-700: #1e3a5f;
    --navy-600: #2a4a73;
    --navy-500: #3b5d8a;
    
    /* 浅色系 - 背景 */
    --bg-primary: #faf8f5;
    --bg-secondary: #f5f2ed;
    --bg-tertiary: #efeae0;
    --bg-card: #ffffff;
    --bg-elevated: #ffffff;
    
    /* 中性色 */
    --text-primary: #1a2332;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    
    /* 边框与分割线 */
    --border-light: #f1ece4;
    --border-medium: #e8e2d8;
    --border-dark: #d4cdbf;
    
    /* 间距系统 - 4pt base */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-base: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    --space-5xl: 128px;
    
    /* 渐变 */
    --gold-gradient: linear-gradient(135deg, #c9a962 0%, #e8d294 50%, #c9a962 100%);
    --gold-gradient-soft: linear-gradient(135deg, rgba(201, 169, 98, 0.12) 0%, rgba(232, 210, 148, 0.05) 100%);
    --navy-gradient: linear-gradient(180deg, #0f1f3d 0%, #1a2d50 50%, #1e3a5f 100%);
    --light-gradient: linear-gradient(180deg, #faf8f5 0%, #f5f2ed 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(15, 31, 61, 0.06), 0 1px 2px rgba(15, 31, 61, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 31, 61, 0.08), 0 2px 4px rgba(15, 31, 61, 0.05);
    --shadow-lg: 0 10px 25px rgba(15, 31, 61, 0.1), 0 4px 10px rgba(15, 31, 61, 0.06);
    --shadow-xl: 0 20px 50px rgba(15, 31, 61, 0.12), 0 8px 20px rgba(15, 31, 61, 0.08);
    
    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-display: 'Times New Roman', Georgia, 'Songti SC', serif;
}

html {
    scroll-behavior: smooth;
}

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

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

.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

/* ===== 通用标题样式 ===== */
.section-eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--gold-400);
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
    position: relative;
    padding-left: 28px;
}

.section-eyebrow::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 1px;
    background: var(--gold-gradient);
}

.section-title-lg {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -1.5px;
    margin-bottom: var(--space-xl);
}

.section-title-lg em {
    font-style: normal;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header-centered {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-sub {
    font-size: 16px;
    color: var(--text-tertiary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.8;
    font-weight: 300;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 169, 98, 0.35);
}

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

.btn-ghost:hover {
    border-color: var(--gold-300);
    color: var(--gold-400);
}

.btn-sm {
    padding: 12px 24px;
    font-size: 14px;
}

.btn-full {
    width: 100%;
}

/* ===== 导航栏 ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-mark {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #e8d294 0%, #c9a962 30%, #8b7135 70%, #c9a962 100%);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    font-family: var(--font-display);
    box-shadow: 
        0 2px 4px rgba(201, 169, 98, 0.3),
        0 4px 8px rgba(201, 169, 98, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
    position: relative;
}

.logo-mark::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 2px;
    right: 2px;
    height: 40%;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
    border-radius: 4px 4px 50% 50%;
}

.nav-logo:hover .logo-mark {
    transform: rotateX(-5deg) rotateY(10deg) translateY(-2px);
    box-shadow: 
        0 4px 8px rgba(201, 169, 98, 0.4),
        0 8px 20px rgba(201, 169, 98, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15);
}

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

.logo-text {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.logo-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link span {
    position: relative;
}

.nav-link:hover {
    color: var(--gold-400);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--gold-gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 1.5px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    background: 
        linear-gradient(150deg, #080d1a 0%, #0c1830 30%, #102040 50%, #0c1830 70%, #080d1a 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 10% 10%, rgba(201, 169, 98, 0.08) 0%, transparent 35%),
        radial-gradient(ellipse at 90% 90%, rgba(59, 93, 138, 0.1) 0%, transparent 40%),
        linear-gradient(180deg, rgba(8, 13, 26, 0.6) 0%, transparent 20%, transparent 55%, var(--bg-primary) 100%);
}

.hero-vignette {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(8, 13, 26, 0.5) 100%);
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    top: 30%;
    left: 20%;
    transform: translate(-50%, -50%);
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.1) 0%, rgba(201, 169, 98, 0.02) 40%, transparent 70%);
    pointer-events: none;
    filter: blur(50px);
}

.hero-grid-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(201, 169, 98, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 169, 98, 0.02) 1px, transparent 1px);
    background-size: 100px 100px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hero-particles span {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(201, 169, 98, 0.6);
    border-radius: 50%;
    animation: particleFloat 8s ease-in-out infinite;
}

.hero-particles span:nth-child(1) { top: 15%; left: 8%; animation-delay: 0s; }
.hero-particles span:nth-child(2) { top: 25%; left: 85%; animation-delay: 1s; }
.hero-particles span:nth-child(3) { top: 60%; left: 12%; animation-delay: 2s; }
.hero-particles span:nth-child(4) { top: 75%; left: 90%; animation-delay: 3s; }
.hero-particles span:nth-child(5) { top: 35%; left: 70%; animation-delay: 1.5s; }
.hero-particles span:nth-child(6) { top: 50%; left: 5%; animation-delay: 2.5s; }
.hero-particles span:nth-child(7) { top: 85%; left: 50%; animation-delay: 4s; }
.hero-particles span:nth-child(8) { top: 20%; left: 40%; animation-delay: 0.5s; }

@keyframes particleFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.4; }
    50% { transform: translateY(-25px) scale(1.5); opacity: 0.7; }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 15% 25%, rgba(201, 169, 98, 0.04) 0%, transparent 45%),
        radial-gradient(ellipse at 85% 75%, rgba(59, 93, 138, 0.05) 0%, transparent 45%);
    z-index: 0;
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 80px;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 80px 40px 60px;
}

.hero-content {
    flex: 1;
    max-width: 640px;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 18px;
    background: rgba(201, 169, 98, 0.06);
    border: 1px solid rgba(201, 169, 98, 0.25);
    border-radius: 100px;
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-200);
    margin-bottom: 40px;
    letter-spacing: 4px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.label-dot {
    width: 5px;
    height: 5px;
    background: var(--gold-300);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--gold-300);
}

.hero-title {
    font-size: 80px;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 32px;
    letter-spacing: -2px;
    font-family: var(--font-display);
    color: #fff;
}

.title-accent {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 0;
    max-width: 480px;
    line-height: 1.9;
    font-weight: 300;
}

.hero-divider {
    width: 56px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold-300), rgba(201, 169, 98, 0.2));
    margin: 24px 0 36px;
    border-radius: 1px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

/* ===== 品牌背书条 ===== */
.hero-trust {
    display: flex;
    align-items: center;
    gap: 0;
    padding-top: 32px;
    border-top: 1px solid rgba(201, 169, 98, 0.08);
}

.trust-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 24px;
}

.trust-item:first-child {
    padding-left: 0;
}

.trust-label {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.trust-value {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
}

.trust-sep {
    width: 1px;
    height: 28px;
    background: linear-gradient(180deg, transparent, rgba(201, 169, 98, 0.15), transparent);
}

/* ===== 右侧数据面板 ===== */
.hero-stats-panel {
    flex-shrink: 0;
    width: 320px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid rgba(201, 169, 98, 0.15);
    border-radius: 16px;
    padding: 32px 24px;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 
        0 24px 64px rgba(0, 0, 0, 0.4),
        0 4px 24px rgba(201, 169, 98, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    position: relative;
    overflow: hidden;
}

.stats-panel-glow {
    position: absolute;
    top: -50%;
    right: -30%;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.stats-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(201, 169, 98, 0.1);
    position: relative;
    z-index: 1;
}

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--gold-200);
}

.live-pulse {
    width: 7px;
    height: 7px;
    background: #f87171;
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
    box-shadow: 0 0 6px rgba(248, 113, 113, 0.5);
}

.stats-panel-title {
    font-size: 12px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 2px;
}

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

.stats-panel-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 1;
}

/* 主打数据 - 签约主播 */
.sp-stat-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(201, 169, 98, 0.06);
    border: 1px solid rgba(201, 169, 98, 0.12);
    border-radius: 12px;
}

.sp-stat-feature .sp-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.sp-stat-feature .sp-stat-value {
    font-size: 36px;
}

.sp-stat-feature .sp-stat-value span {
    font-size: 22px;
}

.sp-stat {
    display: flex;
    align-items: center;
    gap: 14px;
}

.sp-stat-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(201, 169, 98, 0.08);
    border: 1px solid rgba(201, 169, 98, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-300);
}

.sp-stat-info {
    flex: 1;
}

.sp-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-display);
    line-height: 1;
}

.sp-stat-value span {
    font-size: 18px;
    color: var(--gold-300);
    margin-left: 2px;
}

.sp-stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
    letter-spacing: 1px;
    margin-top: 4px;
}

/* 小数据网格 */
.sp-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(201, 169, 98, 0.08);
    border-radius: 10px;
    overflow: hidden;
}

.sp-mini {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 8px;
    text-align: center;
}

.sp-mini-value {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-display);
    line-height: 1;
}

.sp-mini-value span {
    font-size: 14px;
    color: var(--gold-300);
    margin-left: 1px;
}

.sp-mini-label {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 1px;
    margin-top: 6px;
}

.stats-panel-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(201, 169, 98, 0.1);
    position: relative;
    z-index: 1;
}

.sp-platform {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.65);
}

.sp-pf-icon {
    color: var(--gold-300);
    font-size: 10px;
}

.sp-pf-divider {
    width: 1px;
    height: 16px;
    background: rgba(201, 169, 98, 0.18);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-dot {
    width: 6px;
    height: 6px;
    background: var(--gold-300);
    border-radius: 50%;
    animation: scrollBounce 2s ease-in-out infinite;
    box-shadow: 0 0 12px var(--gold-300);
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.5; }
}

/* ===== 动画 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.9s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 滚动动画 ===== */
.scroll-animate {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-animate.fade-up {
    transform: translateY(50px);
}

.scroll-animate.fade-left {
    transform: translateX(-50px);
}

.scroll-animate.fade-right {
    transform: translateX(50px);
}

.scroll-animate.fade-scale {
    transform: scale(0.92);
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

.scroll-animate.delay-1 { transition-delay: 0.15s; }
.scroll-animate.delay-2 { transition-delay: 0.3s; }
.scroll-animate.delay-3 { transition-delay: 0.45s; }
.scroll-animate.delay-4 { transition-delay: 0.6s; }

/* ===== 视频展示区 ===== */
.video-section {
    padding: 0;
    position: relative;
    margin-top: -80px;
    z-index: 10;
    background: var(--bg-tertiary);
    padding: var(--space-3xl) 0;
}

.video-showcase {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2xl);
}

.video-frame {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(201, 169, 98, 0.15);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.15),
        0 0 60px rgba(201, 169, 98, 0.03);
    background: #000;
    width: 100%;
    max-width: 900px;
}

.video-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(8, 13, 26, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(201, 169, 98, 0.25);
    border-radius: 2px;
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-200);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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

.video-player {
    width: 100%;
    display: block;
    max-height: 550px;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 7, 13, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.play-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gold-gradient);
    border: none;
    color: var(--black-950);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.4);
}

.play-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 15px 50px rgba(212, 175, 55, 0.5);
}

.play-btn svg {
    margin-left: 4px;
}

.video-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    letter-spacing: 1px;
}

.video-info {
    text-align: center;
    margin-top: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.video-info h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 0;
    letter-spacing: -0.5px;
}

.video-info p {
    color: var(--text-tertiary);
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* ===== 关于我们 ===== */
.about {
    background: var(--bg-primary);
    padding: var(--space-5xl) 0;
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: var(--space-4xl);
    align-items: start;
}

.about-sidebar {
    position: sticky;
    top: 120px;
}

.about-lead {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-top: var(--space-xl);
    font-weight: 300;
}

.about-text-block {
    margin-bottom: var(--space-3xl);
}

.about-text-block:last-of-type {
    margin-bottom: var(--space-2xl);
}

.about-text-block h4 {
    font-size: 12px;
    font-weight: 700;
    color: var(--gold-400);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: var(--space-base);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-light);
}

.about-text-block p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.9;
}

/* About cards - break out of uniform grid */
.about-cards {
    display: flex;
    gap: var(--space-base);
    margin-top: var(--space-2xl);
    flex-wrap: wrap;
}

.about-card {
    flex: 1;
    min-width: 200px;
    padding: var(--space-xl) var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-sm);
    border-top: 2px solid transparent;
}

.about-card:hover {
    border-top-color: var(--gold-300);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-num {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--gold-300);
    margin-bottom: var(--space-base);
    line-height: 1;
}

.about-card h5 {
    font-size: 15px;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
}

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

/* ===== 企业风采照片轮播 ===== */
.gallery-section {
    background: var(--bg-tertiary);
    padding: var(--space-5xl) 0;
}

.gallery-carousel {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-card);
}

.carousel-viewport {
    overflow: hidden;
    border-radius: 4px;
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 6s ease-out;
}

.carousel-slide.active img {
    transform: scale(1.08);
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 32px;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 1px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    color: var(--text-primary);
}

.carousel-btn:hover {
    background: #fff;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
    transform: translateY(-50%) scale(1.05);
}

.carousel-prev {
    left: 16px;
}

.carousel-next {
    right: 16px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 20px 0 0;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-dark);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.carousel-dot.active {
    width: 28px;
    border-radius: 4px;
    background: var(--gold-300);
}

/* ===== 业务赛道 ===== */
.business {
    background: var(--bg-secondary);
    padding: var(--space-5xl) 0;
}

.business-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

.biz-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.biz-card:hover {
    transform: translateY(-6px);
    border-color: rgba(201, 169, 98, 0.2);
    box-shadow: var(--shadow-lg);
}

.biz-card.featured {
    border-color: rgba(201, 169, 98, 0.3);
    background: linear-gradient(180deg, #ffffff 0%, rgba(201, 169, 98, 0.03) 100%);
    position: relative;
}

.biz-visual {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.biz-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.biz-card:hover .biz-visual img {
    transform: scale(1.06);
}

.biz-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 14px;
    background: rgba(5, 7, 13, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--gold-200);
    letter-spacing: 2px;
}

.biz-tag.dual {
    background: var(--gold-gradient);
    color: var(--black-950);
    border: none;
}

.biz-featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 14px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
}

.biz-body {
    padding: var(--space-2xl) var(--space-xl);
}

.biz-card.featured .biz-body {
    padding-top: var(--space-2xl);
    position: relative;
}

.biz-category {
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-400);
    letter-spacing: 3px;
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.biz-body h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--space-base);
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.biz-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.biz-points {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-base);
}

.biz-points li {
    position: relative;
    padding-left: 16px;
    color: var(--text-tertiary);
    font-size: 13px;
}

.biz-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 6px;
    height: 6px;
    background: var(--gold-300);
    border-radius: 50%;
}

/* ===== 直播生态 ===== */
.showcase {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
    padding: var(--space-5xl) 0;
}

.showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(201, 169, 98, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

/* Ecosystem grid - asymmetric layout */
.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-light);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--space-3xl);
}

.eco-item {
    padding: var(--space-2xl) var(--space-xl);
    background: var(--bg-card);
    text-align: center;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.eco-item:hover {
    background: var(--bg-secondary);
    border-bottom-color: var(--gold-300);
}

.eco-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-base);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-300);
}

.eco-item h4 {
    font-size: 16px;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.eco-item p {
    color: var(--text-tertiary);
    font-size: 13px;
    line-height: 1.6;
    font-weight: 300;
}

/* Live stats - more editorial layout */
.live-stats {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: var(--space-3xl);
    box-shadow: var(--shadow-md);
}

.stats-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 10px;
    font-weight: 700;
    color: #ef4444;
    letter-spacing: 3px;
    margin-bottom: var(--space-base);
    text-transform: uppercase;
}

.live-pulse {
    width: 7px;
    height: 7px;
    background: #ef4444;
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
    box-shadow: 0 0 8px #ef4444;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px #ef4444; }
    50% { opacity: 0.7; transform: scale(0.9); box-shadow: 0 0 4px #ef4444; }
}

.stats-header h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-base);
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-sm);
    padding: var(--space-xl) var(--space-base);
    background: var(--bg-secondary);
    border-radius: 4px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: rgba(201, 169, 98, 0.2);
    transform: translateY(-3px);
}

.stat-icon {
    font-size: 24px;
}

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-main {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 0;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-desc {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 300;
}

/* 直播房间展示 */
.live-rooms {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.live-room-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.4s ease;
    transform-style: preserve-3d;
    perspective: 1000px;
    box-shadow: var(--shadow-sm);
}

.live-room-card:hover {
    transform: translateY(-6px);
    border-color: rgba(201, 169, 98, 0.3);
    box-shadow: var(--shadow-lg);
}

.room-cover {
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #f0ebe3 0%, #e5ddd0 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.room-cover::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at 30% 30%, rgba(201, 169, 98, 0.2), transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.3), transparent 50%);
}

.room-cover::after {
    content: '📺';
    font-size: 48px;
    opacity: 0.6;
    position: relative;
    z-index: 1;
}

.live-room-card:nth-child(2) .room-cover::after { content: '🎤'; }
.live-room-card:nth-child(3) .room-cover::after { content: '💬'; }
.live-room-card:nth-child(4) .room-cover::after { content: '✨'; }

.room-live-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: #ff3b30;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 4px;
    z-index: 2;
    letter-spacing: 0.5px;
}

.live-dot {
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.room-live-badge.upcoming {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    font-weight: 500;
}

.room-viewers {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 11px;
    border-radius: 4px;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.room-platform {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.room-platform.tiktok {
    background: rgba(0, 0, 0, 0.8);
}

.room-platform.bigo {
    background: rgba(201, 169, 98, 0.9);
    color: #fff;
}

.room-info {
    padding: 14px 16px;
}

.room-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.room-host {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ===== 校企合作 ===== */
.cooperation {
    background: var(--light-gradient);
    padding: var(--space-5xl) 0;
}

.coop-intro-center {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--space-3xl);
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.9;
    font-weight: 300;
}

/* 培训方向 */
.coop-training {
    margin-bottom: var(--space-3xl);
}

.training-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.training-label {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-400);
    letter-spacing: 3px;
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.training-header h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.training-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
}

.training-item {
    padding: var(--space-xl) var(--space-base);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.training-item:hover {
    transform: translateY(-4px);
    border-color: rgba(201, 169, 98, 0.2);
    box-shadow: var(--shadow-lg);
}

.training-icon {
    font-size: 32px;
    margin-bottom: var(--space-base);
}

.training-item h4 {
    font-size: 16px;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.training-item p {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.6;
    font-weight: 300;
}

.coop-features-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.coop-features {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border-light);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    overflow: hidden;
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
}

.coop-feature {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-2xl);
    background: var(--bg-card);
    transition: background 0.3s ease;
}

.coop-feature:hover {
    background: var(--bg-secondary);
}

.cf-number {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--gold-300);
    flex-shrink: 0;
    width: 36px;
    line-height: 1;
}

.cf-content h4 {
    font-size: 17px;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.cf-content p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.7;
    font-weight: 300;
}

.coop-cta {
    margin-top: var(--space-2xl);
}

/* 合作模式 */
.coop-modes {
    margin-bottom: var(--space-4xl);
}

.modes-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.modes-label {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-400);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.modes-header h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.5px;
}

.modes-header p {
    color: var(--text-tertiary);
    font-size: 14px;
    font-weight: 300;
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-base);
}

.mode-card {
    padding: var(--space-2xl) var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.mode-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201, 169, 98, 0.2);
}

.mode-card.featured {
    border-color: rgba(201, 169, 98, 0.3);
    background: linear-gradient(180deg, #ffffff 0%, rgba(201, 169, 98, 0.03) 100%);
}

.mode-icon-wrap {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-base);
    background: var(--gold-gradient-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mode-icon {
    font-size: 24px;
}

.mode-card h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.mode-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-base);
    font-weight: 300;
}

.mode-points {
    list-style: none;
    padding: 0;
    text-align: left;
}

.mode-points li {
    position: relative;
    padding-left: 18px;
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
}

.mode-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold-400);
    font-weight: bold;
    font-size: 11px;
}

.training-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
}

.training-tags span {
    padding: 4px 10px;
    background: var(--gold-gradient-soft);
    color: var(--gold-500);
    font-size: 11px;
    border-radius: 4px;
    font-weight: 500;
}

/* 合作流程 */
.coop-process {
    margin-bottom: 80px;
}

.process-header {
    text-align: center;
    margin-bottom: 48px;
}

.process-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--gold-400);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.process-header h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.process-header p {
    color: var(--text-tertiary);
    font-size: 15px;
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    padding: 20px 0;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-medium);
    transform: translateY(-50%);
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 12px;
}

.step-num {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--gold-400);
    margin-bottom: 16px;
}

.step-dot {
    width: 16px;
    height: 16px;
    background: var(--gold-gradient);
    border-radius: 50%;
    margin: 0 auto 16px;
    box-shadow: 0 0 0 4px var(--bg-primary), 0 0 12px rgba(201, 169, 98, 0.4);
}

.step-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

/* ===== 分公司 ===== */
.branches {
    background: var(--bg-secondary);
    padding: var(--space-5xl) 0;
}

.branches-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.branch-hq {
    padding: var(--space-3xl);
    background: var(--bg-card);
    border: 1px solid rgba(201, 169, 98, 0.2);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border-left: 3px solid var(--gold-300);
}

.branch-hq::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.06) 0%, transparent 60%);
}

.hq-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 10px;
    font-weight: 700;
    color: var(--gold-300);
    letter-spacing: 3px;
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
}

.hq-dot {
    width: 7px;
    height: 7px;
    background: var(--gold-300);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--gold-300);
}

.branch-hq h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: var(--space-base);
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.hq-address {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: var(--space-base);
    color: var(--text-secondary);
}

.hq-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.7;
    font-weight: 300;
}

.branches-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border-light);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.branch-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-base) var(--space-2xl);
    background: var(--bg-card);
    transition: all 0.3s ease;
    border-left: 2px solid transparent;
}

.branch-row:hover {
    background: var(--bg-secondary);
    border-left-color: var(--gold-300);
    padding-left: 36px;
}

.branch-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.branch-location {
    font-size: 13px;
    color: var(--text-tertiary);
}

.branch-row.more .branch-name {
    color: var(--gold-300);
}

/* ===== 联系我们 ===== */
.contact {
    background: var(--light-gradient);
    padding: var(--space-5xl) 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.contact-lead {
    font-size: 18px;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 48px;
    font-weight: 300;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--black-800);
    border: 1px solid var(--black-700);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: rgba(212, 175, 55, 0.3);
    background: var(--black-700);
}

.cm-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.cm-label {
    font-size: 12px;
    color: var(--gold-300);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.cm-value {
    font-size: 15px;
    color: #fff;
}

.contact-form-card {
    background: var(--black-800);
    border: 1px solid var(--black-700);
    border-radius: 12px;
    padding: 48px;
}

.contact-form-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 32px;
}

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

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

.form-field label {
    display: block;
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    padding: 14px 16px;
    background: var(--black-900);
    border: 1px solid var(--black-600);
    border-radius: 6px;
    color: #fff;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    outline: none;
    border-color: var(--gold-400);
    background: var(--black-800);
}

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

.form-field 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 fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 36px;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--navy-900);
    padding: var(--space-4xl) 0 var(--space-xl);
    border-top: 1px solid var(--navy-700);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.fl-name {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
}

.fl-sub {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    margin-top: 2px;
}

.footer-tagline {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.7;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h5 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col a,
.footer-col p {
    display: block;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.3s ease;
    line-height: 1.6;
}

.footer-col a:hover {
    color: var(--gold-300);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--navy-700);
    display: flex;
    justify-content: space-between;
    color: rgba(255,255,255,0.5);
    font-size: 13px;
}

.icp-link {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    transition: color 0.3s ease;
}

.icp-link:hover {
    color: var(--gold-300);
}

/* ===== 平台分区 ===== */
.platform-section {
    margin-bottom: var(--space-3xl);
}

.platform-section:last-child {
    margin-bottom: 0;
}

.platform-header {
    display: flex;
    align-items: center;
    gap: var(--space-base);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-base);
    border-bottom: 1px solid var(--border-light);
}

.platform-logo {
    height: 28px;
    width: auto;
    object-fit: contain;
}

.platform-divider {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-light), transparent);
}

.platform-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--gold-400);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.business-cards.single {
    grid-template-columns: 1fr;
    max-width: 580px;
}

.bigo-tag {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    border: none;
}

/* ===== 联系二维码 ===== */
.contact-qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    max-width: 760px;
    margin: 0 auto var(--space-3xl);
}

.qr-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.qr-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201, 169, 98, 0.2);
    box-shadow: var(--shadow-lg);
}

.qr-card.featured {
    border-color: rgba(201, 169, 98, 0.3);
    background: linear-gradient(180deg, #ffffff 0%, rgba(201, 169, 98, 0.03) 100%);
}

.qr-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: var(--space-xl);
    color: var(--text-secondary);
}

.qr-badge.gold {
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-weight: 600;
}

.qr-icon {
    font-size: 14px;
}

.qr-image-wrap {
    width: 180px;
    height: 180px;
    margin: 0 auto var(--space-xl);
    background: #fff;
    border-radius: 8px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.qr-desc {
    color: var(--text-tertiary);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: var(--space-base);
    font-weight: 300;
}

.qr-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.qr-download-btn:hover {
    background: var(--gold-gradient-soft);
    border-color: var(--gold-300);
    color: var(--gold-500);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 169, 98, 0.15);
}

.qr-download-btn:active {
    transform: translateY(0);
}

.qr-mobile-tip {
    display: none;
    margin: 12px 0 0;
    font-size: 13px;
    color: #ef4444;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.contact-info-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
}

.contact-info-bottom .info-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: var(--bg-card);
    border-radius: 50px;
    border: 1px solid var(--border-light);
}

.contact-info-bottom .info-icon {
    font-size: 20px;
}

.contact-info-bottom .info-label {
    font-size: 12px;
    color: var(--gold-300);
    margin-bottom: 2px;
    text-align: left;
}

.contact-info-bottom .info-value {
    font-size: 14px;
    color: var(--text-primary);
    text-align: left;
}

/* ===== 页脚二维码 ===== */
.footer-qr-group {
    display: flex;
    gap: 20px;
}

.footer-qr-item {
    text-align: center;
}

.footer-qr-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    background: #fff;
    padding: 4px;
    border-radius: 6px;
    margin-bottom: 8px;
}

.footer-qr-item span {
    display: block;
    font-size: 11px;
    color: var(--gray-400);
    white-space: nowrap;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }
    
    .nav-container {
        padding: 0 24px;
    }
    
    .section {
        padding: var(--space-3xl) 0;
    }
    
    .section-title-lg {
        font-size: 36px;
    }
    
    .hero-title {
        font-size: 52px;
    }
    
    .hero-inner {
        gap: 40px;
    }
    
    .hero-stats-panel {
        width: 280px;
    }
    
    .hero-trust {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .about-layout,
    .business-cards,
    .coop-layout,
    .branches-wrapper,
    .contact-wrapper,
    .footer-main {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-sidebar {
        position: static;
    }
    
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-cols {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-cards {
        flex-wrap: wrap;
    }
    
    .about-card {
        min-width: 180px;
    }
    
    .business-cards.single {
        max-width: 100%;
    }
    
    .footer-qr-group {
        flex-direction: column;
        gap: 16px;
    }
    
    .training-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0;
    }
    
    .section-title-lg {
        font-size: 36px;
    }
    
    .hero-inner {
        flex-direction: column;
        gap: 40px;
        padding: 100px 30px 0;
    }
    
    .hero-content {
        text-align: center;
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-stats-panel {
        width: 100%;
        max-width: 400px;
    }
    
    .business-cards {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .branch-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-cols {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .eco-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .training-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .training-item {
        padding: 24px 16px;
    }
    
    .mode-card {
        padding: 28px 20px;
    }
    
    .contact-qr-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto 40px;
    }
    
    .qr-card {
        padding: 32px 24px;
    }
    
    .qr-image-wrap {
        width: 160px;
        height: 160px;
    }
    
    .live-stats {
        padding: 32px 24px;
    }
    
    .branch-hq {
        padding: 28px;
    }
    
    .coop-intro-center {
        font-size: 15px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-container {
        padding: 0 20px;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .section-title-lg {
        font-size: 30px;
    }
    
    .section-sub {
        font-size: 15px;
    }
    
    /* 导航移动端菜单 */
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        padding: 80px 28px;
        gap: 24px;
        transition: right 0.3s ease;
        box-shadow: -10px 0 40px rgba(15, 31, 61, 0.1);
        border-left: 1px solid var(--border-light);
    }
    
    .nav-menu.active {
        display: flex;
        right: 0;
    }
    
    .nav-link {
        font-size: 16px;
        padding: 8px 0;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    /* Hero 移动端 */
    .hero {
        min-height: 100vh;
        padding-top: 80px;
    }
    
    .hero-inner {
        flex-direction: column;
        gap: 36px;
        padding: 90px 20px 60px;
    }
    
    .hero-content {
        text-align: center;
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 32px;
        letter-spacing: -0.5px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 0;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-divider {
        margin: 18px auto 24px;
    }
    
    .hero-label {
        font-size: 9px;
        padding: 5px 14px;
        margin-bottom: 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        margin-bottom: 36px;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 260px;
        padding: 12px 24px;
    }
    
    .hero-trust {
        flex-direction: column;
        gap: 16px;
        padding-top: 24px;
    }
    
    .trust-item {
        padding: 0;
        flex-direction: row;
        gap: 12px;
        align-items: baseline;
    }
    
    .trust-sep {
        display: none;
    }
    
    .hero-stats-panel {
        width: 100%;
        max-width: 320px;
        padding: 24px 18px;
    }
    
    .sp-stat-feature {
        padding: 16px;
        gap: 12px;
    }
    
    .sp-stat-feature .sp-stat-icon {
        width: 40px;
        height: 40px;
    }
    
    .sp-stat-feature .sp-stat-value {
        font-size: 28px;
    }
    
    .sp-stat-feature .sp-stat-value span {
        font-size: 18px;
    }
    
    .sp-mini-value {
        font-size: 18px;
    }
    
    .sp-mini-value span {
        font-size: 12px;
    }
    
    .sp-mini-label {
        font-size: 9px;
    }
    
    .sp-mini {
        padding: 12px 4px;
    }
    
    /* About 移动端 */
    .about-text-block h4 {
        font-size: 18px;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    /* 轮播 移动端 */
    .carousel-slide {
        aspect-ratio: 4 / 3;
    }
    
    .slide-caption {
        padding: 14px 20px;
        font-size: 13px;
    }
    
    .carousel-btn {
        width: 36px;
        height: 36px;
    }
    
    .carousel-prev {
        left: 8px;
    }
    
    .carousel-next {
        right: 8px;
    }
    
    /* 生态系统 移动端 */
    .ecosystem-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1px;
    }
    
    .eco-item {
        padding: 32px 20px;
    }
    
    .eco-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 14px;
    }
    
    .eco-icon svg {
        width: 22px;
        height: 22px;
    }
    
    .eco-item h4 {
        font-size: 15px;
        margin-bottom: 6px;
    }
    
    .eco-item p {
        font-size: 12px;
    }
    
    /* 数据统计 移动端 */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
        gap: 12px;
    }
    
    .stat-icon {
        font-size: 22px;
    }
    
    .stat-main {
        font-size: 15px;
    }
    
    .stat-desc {
        font-size: 11px;
    }
    
    /* 业务卡片 移动端 */
    .biz-body {
        padding: 28px 24px;
    }
    
    .biz-body h3 {
        font-size: 22px;
    }
    
    .biz-body p {
        font-size: 14px;
    }
    
    .biz-points {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .biz-points li {
        font-size: 13px;
    }
    
    /* 校企合作 移动端 */
    .modes-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .mode-card {
        padding: 28px 24px;
    }
    
    .training-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .training-item {
        padding: 24px 20px;
    }
    
    .training-icon {
        font-size: 32px;
        margin-bottom: 12px;
    }
    
    .training-item h4 {
        font-size: 16px;
    }
    
    .training-item p {
        font-size: 13px;
    }
    
    .training-tags {
        margin-top: 12px;
        padding-top: 12px;
    }
    
    .training-tags span {
        font-size: 10px;
        padding: 3px 8px;
    }
    
    .coop-feature {
        padding: 20px 24px;
        gap: 16px;
    }
    
    .cf-number {
        font-size: 22px;
        width: 30px;
    }
    
    .cf-content h4 {
        font-size: 16px;
    }
    
    .cf-content p {
        font-size: 13px;
    }
    
    .modes-header h3,
    .training-header h3,
    .process-header h3 {
        font-size: 24px;
    }
    
    .modes-header p,
    .training-header p,
    .process-header p {
        font-size: 14px;
    }
    
    /* 分公司 移动端 */
    .branches-wrapper {
        gap: 32px;
    }
    
    .branch-hq h3 {
        font-size: 22px;
    }
    
    .hq-address {
        font-size: 15px;
    }
    
    .branch-row {
        padding: 18px 24px;
    }
    
    .branch-name {
        font-size: 15px;
    }
    
    .branch-location {
        font-size: 13px;
    }
    
    /* 联系我们 移动端 */
    .contact-qr-grid {
        gap: 20px;
    }
    
    .qr-card {
        padding: 28px 20px;
    }
    
    .qr-badge {
        font-size: 13px;
        padding: 6px 16px;
        margin-bottom: 20px;
    }
    
    .qr-image-wrap {
        width: 160px;
        height: 160px;
        margin-bottom: 20px;
    }
    
    .qr-desc {
        font-size: 13px;
    }
    
    .qr-download-btn {
        padding: 10px 24px;
        font-size: 13px;
    }
    
    .qr-mobile-tip {
        display: block;
    }
    
    .contact-info-bottom .info-item {
        padding: 12px 20px;
        gap: 10px;
    }
    
    .contact-info-bottom .info-icon {
        font-size: 18px;
    }
    
    .contact-info-bottom .info-value {
        font-size: 13px;
    }
    
    /* 页脚 移动端 */
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-cols {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    
    .footer-col h5 {
        font-size: 13px;
        margin-bottom: 16px;
    }
    
    .footer-col a,
    .footer-col p {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
        font-size: 12px;
    }
    
    .footer-qr-group {
        flex-direction: row;
        gap: 16px;
    }
    
    .footer-qr-item img {
        width: 64px;
        height: 64px;
    }
    
    .footer-qr-item span {
        font-size: 10px;
    }
    
    /* 平台标题 移动端 */
    .platform-header {
        gap: 12px;
        margin-bottom: 24px;
        padding-bottom: 16px;
    }
    
    .platform-logo {
        height: 22px;
    }
    
    .platform-tag {
        font-size: 10px;
        letter-spacing: 2px;
    }
    
    /* 视频区域 移动端 */
    .video-section {
        margin-top: -40px;
    }
    
    .play-btn {
        width: 56px;
        height: 56px;
    }
    
    .video-info h3 {
        font-size: 20px;
    }
    
    .video-info p {
        font-size: 14px;
    }
    
    /* 按钮 移动端 */
    .btn {
        padding: 14px 28px;
        font-size: 14px;
    }
}

@media (max-width: 380px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-title-lg {
        font-size: 26px;
    }
    
    .footer-cols {
        grid-template-columns: 1fr;
    }
    
    .ecosystem-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .qr-image-wrap {
        width: 140px;
        height: 140px;
    }
}