/* ============================================
   多财多亿AI - n1n.ai 风格 + 炫酷特效
   ============================================ */

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

:root {
    --bg: #0a0a0a;
    --bg-light: #111111;
    --bg-card: rgba(20,20,20,0.8);
    --text: #ffffff;
    --text-dim: #999999;
    --text-muted: #555555;
    --accent: #ff6b35;
    --accent-2: #f7931e;
    --purple: #a855f7;
    --blue: #3b82f6;
    --green: #10b981;
    --pink: #ec4899;
    --border: rgba(255,255,255,0.1);
    --glow: rgba(255,107,53,0.5);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* ============================================
   Animated Background
   ============================================ */
.bg-wrapper {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 100% 80% at 50% -30%, rgba(255,107,53,0.2) 0%, transparent 50%),
        radial-gradient(ellipse 80% 50% at 100% 50%, rgba(168,85,247,0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 0% 80%, rgba(59,130,246,0.1) 0%, transparent 50%);
    animation: bgPulse 10s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0% { opacity: 0.8; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.05); }
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* Canvas 粒子背景 */
#particles-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

/* 鼠标跟随光效 */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

.cursor-glow.active {
    opacity: 1;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 24px;
    background: rgba(10,10,10,0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% { filter: drop-shadow(0 0 5px var(--glow)); }
    50% { filter: drop-shadow(0 0 15px var(--glow)); }
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.nav-logo em {
    font-style: normal;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textShine 3s linear infinite;
    background-size: 200% auto;
}

@keyframes textShine {
    to { background-position: 200% center; }
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-dim);
    transition: all 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--purple));
    transition: width 0.3s;
}

.nav-links a:hover {
    color: var(--text);
}

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

.nav-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--glow);
}

.nav-btn:hover::before {
    transform: translateX(100%);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    padding: 100px 24px 60px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.hero-content {
    max-width: 560px;
    position: relative;
    z-index: 2;
}

/* Badge 动画 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px 6px 6px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 28px;
    animation: badgeFloat 3s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.badge-new {
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--glow); }
    50% { box-shadow: 0 0 20px 5px var(--glow); }
}

/* 标题动画 */
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    opacity: 0;
    animation: titleReveal 1s ease forwards 0.2s;
}

@keyframes titleReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 50%, var(--blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: gradientFlow 4s linear infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.4s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮动画 */
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.6s;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    box-shadow: 0 4px 20px var(--glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: translateX(-100%);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 40px var(--glow);
}

.btn-primary:hover::before {
    transform: translateX(100%);
    transition: transform 0.6s;
}

.btn-secondary {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--text);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--accent);
    background: rgba(255,107,53,0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(255,107,53,0.2);
}

/* Stats 动画 */
.hero-stats {
    display: flex;
    gap: 48px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.8s;
}

.stat {
    position: relative;
}

.stat strong {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text), var(--text-dim));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
}

/* ============================================
   Workflow Visualization - 核心特效区
   ============================================ */
.hero-workflow {
    position: relative;
    height: 500px;
    opacity: 0;
    animation: fadeUp 1s ease forwards 0.5s;
}

.workflow-canvas {
    position: relative;
    width: 100%;
    height: 100%;
    perspective: 1000px;
}

/* 连接线 - 流动特效 */
.workflow-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.flow-line {
    stroke-dasharray: 8 4;
    stroke-linecap: round;
    animation: flowDash 3s linear infinite;
    filter: drop-shadow(0 0 3px currentColor);
}

.line-1 { animation-delay: 0s; }
.line-2 { animation-delay: -0.6s; }
.line-3 { animation-delay: -1.2s; }
.line-4 { animation-delay: -1.8s; }
.line-5 { animation-delay: -2.4s; }
.line-6 { animation-delay: -3s; }

@keyframes flowDash {
    to { stroke-dashoffset: -24; }
}

/* 电流效果 */
.flow-line::after {
    content: '';
    position: absolute;
}

/* 节点样式 */
.workflow-node {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: nodeFloat 6s ease-in-out infinite, nodeAppear 0.8s ease both;
    animation-delay: var(--delay), var(--delay);
    cursor: pointer;
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes nodeAppear {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0);
    }
}

.workflow-node:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--accent);
    box-shadow: 
        0 0 30px var(--glow),
        0 20px 50px rgba(0,0,0,0.5);
}

/* 节点脉冲光环 */
.workflow-node::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--accent), var(--purple), var(--blue));
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s;
}

.workflow-node:hover::before {
    opacity: 0.5;
    animation: nodePulse 1.5s ease-in-out infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.2; }
}

/* Node positions - 左侧一列 + AI漫剧固定在右侧，绝不与左侧重叠 */
.node-1 { top: 5%; left: 5%; --delay: 0s; }        /* AI直播 */
.node-2 { top: 28%; left: 0; --delay: 0.15s; }    /* AI换脸 */
.node-3 { top: 68%; left: 5%; --delay: 0.3s; }    /* 语音克隆 */
.node-4 { top: 25%; left: 38%; --delay: 0.45s; }  /* 视频生成 */
.node-5 { top: 55%; left: 40%; --delay: 0.6s; }   /* AI 引擎 */
.node-6 { top: 40%; right: 0; --delay: 0.75s; }   /* 一键导出 */
/* AI漫剧：用 right 定位到画布右侧，与左侧 AI直播 完全分离 */
.workflow-canvas .workflow-node.node-3b {
    top: 40%;
    left: auto;
    right: 48%;
    --delay: 0.18s;
}

.node-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    border-radius: 12px;
    font-size: 1.4rem;
    position: relative;
    overflow: hidden;
}

/* 图标闪光效果 */
.node-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.2) 50%, transparent 60%);
    animation: iconShine 3s ease-in-out infinite;
}

@keyframes iconShine {
    0%, 100% { transform: translateX(-100%) rotate(45deg); }
    50% { transform: translateX(100%) rotate(45deg); }
}

.node-icon-lg {
    width: 52px;
    height: 52px;
    color: white;
}

.node-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.node-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.node-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 粒子动画 */
.particle {
    position: absolute;
    border-radius: 50%;
    animation: particleFly 10s linear infinite;
    pointer-events: none;
}

.p1 { top: 20%; left: 30%; width: 6px; height: 6px; background: var(--accent); animation-delay: 0s; }
.p2 { top: 60%; left: 60%; width: 8px; height: 8px; background: var(--purple); animation-delay: -2.5s; }
.p3 { top: 40%; left: 80%; width: 5px; height: 5px; background: var(--blue); animation-delay: -5s; }
.p4 { top: 80%; left: 45%; width: 7px; height: 7px; background: var(--green); animation-delay: -7.5s; }

@keyframes particleFly {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    50% {
        transform: translate(50px, -80px) scale(1.5);
        opacity: 0.8;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translate(-30px, 60px) scale(0.5);
        opacity: 0;
    }
}

/* 能量线条 */
.energy-line {
    position: absolute;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: energyMove 4s linear infinite;
    opacity: 0.6;
}

@keyframes energyMove {
    0% { transform: translateX(-100px); opacity: 0; }
    50% { opacity: 0.6; }
    100% { transform: translateX(400px); opacity: 0; }
}

/* ============================================
   Section Styles
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,107,53,0.1);
    border: 1px solid rgba(255,107,53,0.3);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    animation: tagGlow 2s ease-in-out infinite;
}

@keyframes tagGlow {
    0%, 100% { box-shadow: 0 0 10px rgba(255,107,53,0.2); }
    50% { box-shadow: 0 0 20px rgba(255,107,53,0.4); }
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   AI直播专区
   ============================================ */
.live-section {
    padding: 120px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(255,107,53,0.03) 50%, transparent 100%);
    position: relative;
}

.live-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.live-preview {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: rgba(255,0,0,0.1);
    border-bottom: 1px solid var(--border);
}

.live-dot {
    width: 10px;
    height: 10px;
    background: #ff0000;
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255,0,0,0.5); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(255,0,0,0); }
}

.preview-header span:nth-child(2) {
    color: #ff4444;
    font-weight: 600;
    font-size: 0.9rem;
}

.viewer-count {
    margin-left: auto;
    color: var(--text-dim);
    font-size: 0.85rem;
}

.preview-body {
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    position: relative;
}

.digital-human {
    position: relative;
}

.human-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    animation: avatarFloat 3s ease-in-out infinite;
}

@keyframes avatarFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.human-wave {
    position: absolute;
    inset: -20px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    animation: waveExpand 2s ease-out infinite;
    opacity: 0.5;
}

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

.live-products {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    font-size: 1.5rem;
    animation: productBounce 2s ease-in-out infinite;
}

.product-card:nth-child(2) {
    animation-delay: 0.5s;
}

@keyframes productBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.product-card small {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.preview-chat {
    padding: 16px 20px;
    background: rgba(0,0,0,0.3);
    border-top: 1px solid var(--border);
    max-height: 100px;
    overflow: hidden;
}

.chat-msg {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 6px;
    animation: chatSlide 0.5s ease;
}

.chat-msg span {
    color: var(--accent);
    margin-right: 6px;
}

.chat-msg.ai {
    background: rgba(255,107,53,0.1);
    padding: 6px 10px;
    border-radius: 8px;
}

@keyframes chatSlide {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.live-features {
    display: grid;
    gap: 20px;
}

.live-feature {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s;
}

.live-feature:hover {
    border-color: var(--accent);
    transform: translateX(5px);
    box-shadow: 0 0 30px rgba(255,107,53,0.1);
}

.live-feature .feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.live-feature .feature-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.live-feature .feature-content p {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ============================================
   视频创作专区
   ============================================ */
.video-section {
    padding: 120px 0;
}

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

.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    position: relative;
    transition: all 0.4s;
    overflow: hidden;
}

.video-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(168,85,247,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.video-card:hover {
    transform: translateY(-8px);
    border-color: rgba(168,85,247,0.3);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.video-card.video-main {
    grid-column: span 2;
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(168,85,247,0.1) 0%, rgba(59,130,246,0.05) 100%);
    border-color: rgba(168,85,247,0.2);
}

.video-card .card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
}

.video-card .card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.video-card.video-main .card-icon {
    font-size: 4rem;
}

.video-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.video-card.video-main h3 {
    font-size: 1.5rem;
}

.video-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.video-card .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.video-card .card-tags span {
    padding: 6px 12px;
    background: rgba(168,85,247,0.15);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--purple);
}

/* ============================================
   AI漫剧专区
   ============================================ */
.drama-section {
    padding: 120px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(236,72,153,0.03) 50%, transparent 100%);
}

.drama-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: stretch;
}

.drama-main-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    position: relative;
    transition: all 0.4s;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(236,72,153,0.08) 0%, rgba(168,85,247,0.05) 100%);
    border-color: rgba(236,72,153,0.2);
}

.drama-main-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(236,72,153,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.drama-main-card:hover::before {
    opacity: 1;
}

.drama-main-card:hover {
    transform: translateY(-6px);
    border-color: rgba(236,72,153,0.35);
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}

.drama-main-card .card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--pink), #db2777);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
}

.drama-main-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.drama-main-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.drama-main-card p {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 16px;
}

.drama-main-card .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.drama-main-card .card-tags span {
    padding: 6px 12px;
    background: rgba(236,72,153,0.15);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--pink);
}

.drama-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.drama-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.drama-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(236,72,153,0.08) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.drama-card:hover {
    transform: translateY(-4px);
    border-color: rgba(236,72,153,0.25);
    box-shadow: 0 12px 36px rgba(0,0,0,0.2);
}

.drama-card .card-icon {
    font-size: 2rem;
    margin-bottom: 14px;
}

.drama-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.drama-card p {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ============================================
   Features - 卡片动画
   ============================================ */
.features {
    padding: 120px 0;
    position: relative;
}

.feature-category {
    margin-bottom: 60px;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-left: 16px;
    border-left: 4px solid var(--accent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

/* 卡片光效 */
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,107,53,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,107,53,0.3);
    box-shadow: 
        0 20px 50px rgba(0,0,0,0.3),
        0 0 30px rgba(255,107,53,0.1);
}

.feature-card.feature-main {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(255,107,53,0.1) 0%, rgba(168,85,247,0.05) 100%);
    border-color: rgba(255,107,53,0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    border-radius: 14px;
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 30px var(--glow);
}

.feature-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    animation: tagPulse 2s ease-in-out infinite;
}

@keyframes tagPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.feature-tag.new {
    background: linear-gradient(135deg, var(--green), #059669);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.feature-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.feature-list span {
    padding: 6px 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--text-dim);
    transition: all 0.2s;
}

.feature-list span:hover {
    background: rgba(255,107,53,0.2);
    color: var(--accent);
}

.more-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.more-features span {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--text-dim);
    transition: all 0.3s;
    cursor: pointer;
}

.more-features span:hover {
    border-color: var(--accent);
    color: var(--text);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* 更多功能区 */
.more-section {
    padding: 60px 0;
}

.more-section .more-features {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
}

/* 技术栈标签 */
.tech-stack {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

.tech-stack span {
    padding: 6px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
}

/* ============================================
   Workflow Steps - 流程动画
   ============================================ */
.workflow-section {
    padding: 120px 0;
    background: linear-gradient(180deg, transparent 0%, var(--bg-light) 50%, transparent 100%);
    position: relative;
    overflow: hidden;
}

/* 背景装饰线 */
.workflow-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--purple), var(--blue), transparent);
    opacity: 0.3;
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 20px;
    position: relative;
}

.step {
    flex: 1;
    max-width: 220px;
    text-align: center;
    padding: 24px;
    position: relative;
}

.step-num {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.3;
    margin-bottom: 16px;
    transition: all 0.3s;
}

.step:hover .step-num {
    opacity: 0.8;
    transform: scale(1.1);
}

.step-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.step-line {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--purple));
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

/* 流动光点 */
.step-line::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, white, transparent);
    animation: lineFlow 2s linear infinite;
}

@keyframes lineFlow {
    0% { left: -20px; }
    100% { left: 100%; }
}

/* ============================================
   Download - 下载区特效
   ============================================ */
.download {
    padding: 120px 0;
}

.download-card {
    position: relative;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 28px;
    padding: 72px;
    overflow: hidden;
    text-align: center;
}

.download-glow {
    position: absolute;
    top: -100%;
    right: -30%;
    width: 80%;
    height: 300%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 50%);
    animation: downloadGlow 8s ease-in-out infinite;
}

@keyframes downloadGlow {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-10%, 10%) rotate(10deg); }
}

/* 浮动粒子 */
.download-card::before,
.download-card::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    animation: floatBubble 10s ease-in-out infinite;
}

.download-card::before {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: 10%;
    animation-delay: 0s;
}

.download-card::after {
    width: 150px;
    height: 150px;
    top: 20%;
    right: 5%;
    animation-delay: -5s;
}

@keyframes floatBubble {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

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

.download-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.download-content > p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 32px;
}

.info-item {
    text-align: center;
}

.info-label {
    display: block;
    font-size: 0.8rem;
    opacity: 0.7;
    margin-bottom: 4px;
}

.info-value {
    font-size: 1.2rem;
    font-weight: 600;
}

.download-btns {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.btn-download, .btn-cloud {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-download {
    background: white;
    color: var(--accent);
}

/* 按钮闪光 */
.btn-download::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,107,53,0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.btn-download:hover::after {
    transform: translateX(100%);
}

.btn-cloud {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-cloud:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-3px);
}

.download-tip {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ============================================
   About & Contact
   ============================================ */
.about {
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 24px;
}

.about-content p {
    font-size: 1.05rem;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-tags {
    display: flex;
    gap: 16px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.about-tags span {
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.about-tags span:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.about-visual {
    text-align: center;
    padding: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 28px;
    position: relative;
    overflow: hidden;
}

.about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(255,107,53,0.1) 0%, transparent 50%);
}

.about-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    animation: logoFloat 4s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.about-logo svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px var(--glow));
}

.about-visual h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.about-visual p {
    color: var(--text-dim);
}

/* Contact */
.contact {
    padding: 120px 0;
    background: var(--bg-light);
}

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

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 36px;
    text-align: center;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,107,53,0.3);
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: inline-block;
    animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.contact-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 16px;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: var(--bg);
    border: 1px dashed var(--border);
    border-radius: 12px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.contact-card a {
    color: var(--accent);
    font-weight: 500;
}

.contact-card a:hover {
    text-decoration: underline;
}

.contact-card > span {
    color: var(--accent);
    font-weight: 500;
}

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

.footer-main {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand p {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 16px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 10px;
    transition: all 0.2s;
}

.footer-col a:hover {
    color: var(--accent);
    transform: translateX(3px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-actions, .hero-stats {
        justify-content: center;
    }
    
    .hero-workflow {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .live-showcase {
        grid-template-columns: 1fr;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .video-card.video-main {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .drama-showcase {
        grid-template-columns: 1fr;
    }
    
    .drama-cards {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card.feature-main {
        grid-column: span 1;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .video-card.video-main {
        grid-column: span 1;
    }
    
    .live-features {
        gap: 12px;
    }
    
    .live-feature {
        padding: 16px;
    }
    
    .drama-cards {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        padding: 48px 24px;
    }
    
    .download-btns {
        flex-direction: column;
    }
    
    .footer-main {
        flex-direction: column;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .download-info {
        flex-direction: column;
        gap: 16px;
    }
}

/* Selection & Scrollbar */
::selection {
    background: var(--accent);
    color: white;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent), var(--purple));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-2), var(--purple));
}