/* ============================================
   每日大乱斗 - 全站设计系统
   Design System v1.0
   ============================================ */

/* ---------- 1. 设计变量 ---------- */
:root {
    /* 品牌色 */
    --purple: #6D5EF0;
    --purple-light: #A78BFA;
    --purple-dark: #4F3FD0;
    --pink: #FF6B9D;
    --pink-light: #FBC8E0;
    --amber: #FFB627;
    --cyan: #00C9FF;
    --green: #00E676;
    --red: #FF4757;

    /* 渐变 */
    --grad-primary: linear-gradient(135deg, #6D5EF0 0%, #FF6B9D 100%);
    --grad-cool: linear-gradient(135deg, #6D5EF0 0%, #00C9FF 100%);
    --grad-warm: linear-gradient(135deg, #FF6B9D 0%, #FFB627 100%);
    --grad-aurora: linear-gradient(135deg, #6D5EF0 0%, #FF6B9D 50%, #FFB627 100%);
    --grad-mesh: radial-gradient(at 20% 20%, #6D5EF0 0px, transparent 50%),
                 radial-gradient(at 80% 10%, #FF6B9D 0px, transparent 50%),
                 radial-gradient(at 50% 80%, #FFB627 0px, transparent 50%);

    /* 暗色背景 */
    --dark: #0B0B14;
    --dark-2: #14142B;
    --dark-3: #1E1E3A;
    --dark-4: #2A2A4A;

    /* 浅色背景 */
    --light: #FAFAFF;
    --light-2: #F0F0FF;
    --white: #FFFFFF;

    /* 文字 */
    --text-dark: #14142B;
    --text-mid: #4A4A6A;
    --text-muted: #8A8AA0;
    --text-light: #B0B0C8;
    --text-white: #FFFFFF;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(109, 94, 240, 0.08);
    --shadow-md: 0 8px 24px rgba(109, 94, 240, 0.12);
    --shadow-lg: 0 16px 48px rgba(109, 94, 240, 0.18);
    --shadow-glow: 0 8px 32px rgba(109, 94, 240, 0.35);
    --shadow-pink: 0 8px 32px rgba(255, 107, 157, 0.3);
    --shadow-card: 0 4px 20px rgba(20, 20, 43, 0.06);
    --shadow-card-hover: 0 12px 40px rgba(109, 94, 240, 0.2);

    /* 圆角 */
    --r-sm: 12px;
    --r-md: 16px;
    --r-lg: 24px;
    --r-xl: 32px;
    --r-full: 999px;

    /* 间距 */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 64px;
    --space-3xl: 96px;

    /* 过渡 */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

    /* 容器 */
    --container: 1200px;

    /* 字体 */
    --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-display: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* ---------- 2. 重置与基础 ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    border: none;
    outline: none;
}

::selection {
    background: var(--purple);
    color: var(--white);
}

/* ---------- 3. 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.15rem; }

.gradient-text {
    background: var(--grad-aurora);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ---------- 4. 布局工具 ---------- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--space-3xl) 0;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

.section-dark {
    background: var(--dark);
    color: var(--text-white);
}

.section-gradient {
    background: var(--grad-mesh);
    background-attachment: fixed;
}

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

/* ---------- 5. 导航栏 ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 12px 0;
    transition: all 0.3s var(--ease);
    background: rgba(250, 250, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(109, 94, 240, 0.08);
}

.navbar.scrolled {
    padding: 8px 0;
    box-shadow: var(--shadow-md);
    background: rgba(250, 250, 255, 0.85);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    white-space: nowrap;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--grad-aurora);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    flex-shrink: 0;
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(-3deg) scale(1.05); }
}

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

.logo span {
    background: var(--grad-aurora);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--r-full);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-mid);
    transition: all 0.2s var(--ease);
    position: relative;
}

.nav-link:hover {
    color: var(--purple);
    background: rgba(109, 94, 240, 0.06);
}

.nav-link.active {
    color: var(--purple);
    font-weight: 700;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 2px;
    background: var(--grad-primary);
}

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

/* 汉堡菜单 */
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    transition: all 0.3s var(--ease);
}

.menu-toggle span {
    width: 22px;
    height: 2.5px;
    border-radius: 2px;
    background: var(--text-dark);
    transition: all 0.3s var(--ease);
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ---------- 6. 按钮系统 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--r-full);
    font-size: 0.98rem;
    font-weight: 600;
    transition: all 0.3s var(--ease);
    white-space: nowrap;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--grad-primary);
    background-size: 200% 200%;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background-position: 100% 50%;
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(109, 94, 240, 0.45);
}

.btn-cool {
    background: var(--grad-cool);
    color: var(--white);
    box-shadow: 0 8px 32px rgba(0, 201, 255, 0.35);
}

.btn-cool:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 201, 255, 0.45);
}

.btn-ghost {
    background: rgba(109, 94, 240, 0.08);
    color: var(--purple);
    border: 2px solid rgba(109, 94, 240, 0.15);
}

.btn-ghost:hover {
    background: rgba(109, 94, 240, 0.12);
    border-color: var(--purple);
    transform: translateY(-2px);
}

.btn-light {
    background: var(--white);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.88rem;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* ---------- 7. Hero 区域 ---------- */
.hero {
    position: relative;
    padding: 140px 0 80px;
    overflow: hidden;
    background: var(--dark);
    color: var(--text-white);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--grad-mesh);
    opacity: 0.4;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(109, 94, 240, 0.3), transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 107, 157, 0.2), transparent 50%),
                radial-gradient(ellipse at 50% 90%, rgba(255, 182, 39, 0.15), transparent 50%);
}

.hero-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;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--r-full);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 28px;
    animation: fadeInDown 0.8s var(--ease);
}

.hero-badge .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(0, 230, 118, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
}

.hero h1 {
    margin-bottom: 20px;
    animation: fadeInUp 0.8s var(--ease) 0.1s both;
}

.hero h1 .gradient-text {
    display: inline-block;
}

.hero p.lead {
    font-size: 1.15rem;
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto 36px;
    animation: fadeInUp 0.8s var(--ease) 0.2s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s var(--ease) 0.3s both;
}

.hero-search {
    margin-top: 40px;
    display: flex;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--r-full);
    padding: 6px;
    animation: fadeInUp 0.8s var(--ease) 0.4s both;
}

.hero-search input {
    flex: 1;
    background: transparent;
    padding: 10px 16px;
    color: var(--text-white);
    font-size: 0.95rem;
}

.hero-search input::placeholder {
    color: var(--text-light);
}

.hero-search button {
    padding: 10px 24px;
    border-radius: var(--r-full);
    background: var(--grad-primary);
    color: var(--white);
    font-weight: 600;
    transition: all 0.3s var(--ease);
}

.hero-search button:hover {
    background-position: 100% 50%;
    transform: scale(1.02);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s var(--ease) 0.5s both;
}

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

.hero-stat .num {
    font-size: 2rem;
    font-weight: 900;
    background: var(--grad-aurora);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-stat .label {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* Hero 浮动装饰 */
.hero-floats {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.float-card {
    position: absolute;
    border-radius: var(--r-md);
    padding: 12px 16px;
    font-size: 0.82rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    animation: floatAround 6s ease-in-out infinite;
}

.float-card svg {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 6px;
}

@keyframes floatAround {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-16px) rotate(2deg); }
}

/* ---------- 8. 章节标题 ---------- */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header .eyebrow {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--r-full);
    background: rgba(109, 94, 240, 0.08);
    color: var(--purple);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    margin-bottom: 14px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto;
}

.section-dark .section-header p {
    color: var(--text-light);
}

/* ---------- 9. 分类卡片网格 ---------- */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.cat-card {
    position: relative;
    padding: 28px 20px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    text-align: center;
    transition: all 0.3s var(--ease);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid rgba(109, 94, 240, 0.06);
}

.cat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--cat-color, var(--grad-primary));
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

.cat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

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

.cat-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: var(--cat-bg, rgba(109, 94, 240, 0.1));
    transition: all 0.3s var(--ease);
}

.cat-card:hover .cat-icon {
    transform: scale(1.1) rotate(-5deg);
}

.cat-icon svg {
    width: 32px;
    height: 32px;
    color: var(--cat-color, var(--purple));
}

.cat-card h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.cat-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.cat-card .count {
    display: inline-block;
    margin-top: 10px;
    padding: 3px 10px;
    border-radius: var(--r-full);
    background: var(--cat-bg, rgba(109, 94, 240, 0.08));
    color: var(--cat-color, var(--purple));
    font-size: 0.78rem;
    font-weight: 700;
}

/* 分类色变量 */
.cat-娱乐 { --cat-color: #FF6B9D; --cat-bg: rgba(255, 107, 157, 0.1); }
.cat-社会 { --cat-color: #6D5EF0; --cat-bg: rgba(109, 94, 240, 0.1); }
.cat-商业 { --cat-color: #FFB627; --cat-bg: rgba(255, 182, 39, 0.1); }
.cat-体育 { --cat-color: #00C9FF; --cat-bg: rgba(0, 201, 255, 0.1); }
.cat-明星 { --cat-color: #FF4757; --cat-bg: rgba(255, 71, 87, 0.1); }
.cat-网红 { --cat-color: #00E676; --cat-bg: rgba(0, 230, 118, 0.1); }

/* ---------- 10. 事件卡片 ---------- */
.event-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.event-card {
    background: var(--white);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    border: 1px solid rgba(109, 94, 240, 0.05);
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.event-thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--event-grad, var(--grad-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.event-thumb .thumb-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.2) 0%, transparent 50%),
                      radial-gradient(circle at 80% 70%, rgba(255,255,255,0.15) 0%, transparent 50%);
}

.event-thumb .thumb-icon {
    position: relative;
    z-index: 2;
    width: 60px;
    height: 60px;
    color: rgba(255, 255, 255, 0.9);
}

.event-thumb .badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 3;
    padding: 4px 12px;
    border-radius: var(--r-full);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 4px;
}

.event-thumb .badge.hot {
    background: var(--grad-warm);
}

.event-thumb .badge .fire {
    animation: shake 0.5s ease-in-out infinite;
}

@keyframes shake {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

.event-thumb .duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    z-index: 3;
    padding: 3px 10px;
    border-radius: var(--r-sm);
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
}

.event-body {
    padding: 20px;
}

.event-body .meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.event-body .meta .cat-tag {
    padding: 3px 10px;
    border-radius: var(--r-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.event-body .meta .time {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.event-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-body p {
    font-size: 0.88rem;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

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

.event-stats {
    display: flex;
    gap: 14px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.event-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.event-stats svg {
    width: 15px;
    height: 15px;
}

.event-play {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--grad-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.3s var(--ease);
}

.event-card:hover .event-play {
    transform: scale(1.15);
    box-shadow: var(--shadow-glow);
}

/* ---------- 11. 特性展示 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.feature-card {
    padding: 32px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    border: 1px solid rgba(109, 94, 240, 0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-card:hover::after {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--grad-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: var(--shadow-glow);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* ---------- 12. 下载 CTA 横幅 ---------- */
.cta-banner {
    position: relative;
    padding: 64px 48px;
    border-radius: var(--r-xl);
    background: var(--dark);
    overflow: hidden;
    text-align: center;
    color: var(--text-white);
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-mesh);
    opacity: 0.5;
    z-index: 0;
}

.cta-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(109, 94, 240, 0.4), transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255, 107, 157, 0.3), transparent 40%);
    z-index: 0;
}

.cta-banner > * {
    position: relative;
    z-index: 2;
}

.cta-banner h2 {
    margin-bottom: 14px;
}

.cta-banner p {
    color: var(--text-light);
    max-width: 520px;
    margin: 0 auto 32px;
    font-size: 1.05rem;
}

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

/* ---------- 13. 页脚 ---------- */
.footer {
    background: var(--dark);
    color: var(--text-light);
    padding: 64px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.92rem;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--ease);
    color: var(--text-light);
}

.footer-social a:hover {
    background: var(--grad-primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-social svg {
    width: 20px;
    height: 20px;
}

.footer-col h4 {
    color: var(--text-white);
    font-size: 1rem;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.2s var(--ease);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom .links {
    display: flex;
    gap: 20px;
}

.footer-bottom .links a {
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

/* ---------- 14. 页面通用头部（非首页） ---------- */
.page-hero {
    position: relative;
    padding: 140px 0 64px;
    background: var(--dark);
    color: var(--text-white);
    overflow: hidden;
    text-align: center;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-mesh);
    opacity: 0.3;
    z-index: 0;
}

.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 0;
}

.page-hero > .container {
    position: relative;
    z-index: 2;
}

.page-hero .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.page-hero .breadcrumb a:hover {
    color: var(--purple-light);
}

.page-hero .breadcrumb svg {
    width: 14px;
    height: 14px;
}

.page-hero h1 {
    margin-bottom: 16px;
}

.page-hero p {
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* ---------- 15. 视频网格页面 ---------- */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-chip {
    padding: 8px 20px;
    border-radius: var(--r-full);
    background: var(--white);
    color: var(--text-mid);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s var(--ease);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(109, 94, 240, 0.06);
    cursor: pointer;
}

.filter-chip:hover {
    color: var(--purple);
    border-color: var(--purple);
}

.filter-chip.active {
    background: var(--grad-primary);
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

/* 竖屏短视频卡片 */
.video-grid-vertical {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.video-card-v {
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    aspect-ratio: 9 / 16;
    background: var(--dark-2);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    cursor: pointer;
}

.video-card-v:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.video-card-v .thumb {
    position: absolute;
    inset: 0;
    background: var(--video-grad, var(--grad-primary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-card-v .thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.2), transparent 50%),
                      radial-gradient(circle at 70% 80%, rgba(255,255,255,0.15), transparent 50%);
}

.video-card-v .play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

.video-card-v .play-btn::after {
    content: '';
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.video-card-v .play-btn::before {
    content: '';
    position: absolute;
    margin-left: 6px;
    border-left: 16px solid var(--purple);
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    z-index: 2;
}

.video-card-v:hover .play-btn {
    opacity: 1;
}

.video-card-v .info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 4;
    padding: 16px 14px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
}

.video-card-v .info .title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.video-card-v .info .meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.7);
}

.video-card-v .info .meta .views {
    display: flex;
    align-items: center;
    gap: 4px;
}

.video-card-v .info .meta .views svg {
    width: 13px;
    height: 13px;
}

.video-card-v .badge-v {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 5;
    padding: 3px 10px;
    border-radius: var(--r-full);
    background: var(--grad-warm);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 700;
}

/* ---------- 16. App 下载页面 ---------- */
.download-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 80px 0;
}

.phone-mockup {
    position: relative;
    width: 280px;
    margin: 0 auto;
    perspective: 1000px;
}

.phone-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 9 / 19;
    border-radius: 40px;
    background: var(--dark);
    box-shadow: 0 40px 80px rgba(109, 94, 240, 0.3),
                0 0 0 2px rgba(255,255,255,0.1),
                inset 0 0 0 4px rgba(255,255,255,0.05);
    overflow: hidden;
    transform: rotateY(-8deg) rotateX(4deg);
    transition: transform 0.6s var(--ease);
}

.phone-frame:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.phone-screen {
    position: absolute;
    inset: 8px;
    border-radius: 34px;
    background: var(--dark-2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-notch {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 22px;
    border-radius: var(--r-full);
    background: var(--dark);
    z-index: 10;
}

.phone-app-header {
    padding: 36px 16px 12px;
    text-align: center;
    background: var(--grad-mesh);
    background-size: cover;
    flex-shrink: 0;
}

.phone-app-header .app-logo {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--grad-aurora);
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-app-header .app-logo svg {
    width: 22px;
    height: 22px;
    color: var(--white);
}

.phone-app-header p {
    color: var(--text-white);
    font-size: 0.72rem;
    font-weight: 500;
}

.phone-app-body {
    flex: 1;
    padding: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.phone-feed-item {
    flex-shrink: 0;
    border-radius: 14px;
    padding: 10px;
    background: var(--dark-3);
    display: flex;
    gap: 10px;
    align-items: center;
}

.phone-feed-item .ph-thumb {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--grad-primary);
    flex-shrink: 0;
}

.phone-feed-item .ph-text {
    flex: 1;
}

.phone-feed-item .ph-text .ph-title {
    height: 8px;
    background: var(--dark-4);
    border-radius: 4px;
    margin-bottom: 5px;
    width: 80%;
}

.phone-feed-item .ph-text .ph-sub {
    height: 6px;
    background: var(--dark-4);
    border-radius: 3px;
    width: 50%;
}

.phone-tabbar {
    padding: 8px 16px 12px;
    display: flex;
    justify-content: space-around;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.phone-tabbar .tab {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--dark-4);
    opacity: 0.5;
}

.phone-tabbar .tab.active {
    background: var(--grad-primary);
    opacity: 1;
}

.download-features {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.dl-feature {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
}

.dl-feature .icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(109, 94, 240, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dl-feature .icon svg {
    width: 24px;
    height: 24px;
    color: var(--purple);
}

.dl-feature h4 {
    font-size: 0.98rem;
    margin-bottom: 2px;
}

.dl-feature p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.store-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 36px;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    border-radius: var(--r-md);
    background: var(--dark);
    color: var(--text-white);
    transition: all 0.3s var(--ease);
    box-shadow: var(--shadow-md);
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.store-btn svg {
    width: 30px;
    height: 30px;
}

.store-btn .store-text .small {
    font-size: 0.72rem;
    color: var(--text-light);
}

.store-btn .store-text .big {
    font-size: 1.1rem;
    font-weight: 700;
}

/* ---------- 17. 关于页面 ---------- */
.about-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 80px 0;
}

.about-visual {
    position: relative;
    height: 400px;
    border-radius: var(--r-xl);
    background: var(--grad-mesh);
    background-size: cover;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(109,94,240,0.4), transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(255,107,157,0.3), transparent 50%);
}

.about-visual .ab-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-white);
    padding: 40px;
}

.about-visual .ab-icon {
    width: 80px;
    height: 80px;
    border-radius: 24px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    animation: floatY 3s ease-in-out infinite;
}

@keyframes floatY {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.about-visual .ab-icon svg {
    width: 40px;
    height: 40px;
    color: var(--white);
}

.about-visual h2 {
    color: var(--text-white);
    margin-bottom: 12px;
}

.about-visual p {
    color: rgba(255,255,255,0.8);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
}

.stat-card {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-card .num {
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--grad-aurora);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-card .label {
    font-size: 0.92rem;
    color: var(--text-muted);
}

.timeline {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(var(--purple), var(--pink), var(--amber));
}

.timeline-item {
    position: relative;
    padding-left: 64px;
    margin-bottom: 36px;
}

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

.timeline-dot {
    position: absolute;
    left: 16px;
    top: 4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--white);
    border: 4px solid var(--purple);
    box-shadow: 0 0 0 4px rgba(109, 94, 240, 0.15);
    z-index: 2;
}

.timeline-item .year {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--purple);
    margin-bottom: 6px;
}

.timeline-item h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.timeline-item p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* ---------- 18. 联系/订阅 ---------- */
.subscribe-section {
    text-align: center;
}

.subscribe-form {
    display: flex;
    max-width: 480px;
    margin: 32px auto 0;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--r-full);
    padding: 6px;
    backdrop-filter: blur(10px);
}

.subscribe-form input {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    color: var(--text-white);
    font-size: 0.95rem;
}

.subscribe-form input::placeholder {
    color: var(--text-light);
}

.subscribe-form button {
    padding: 12px 28px;
    border-radius: var(--r-full);
    background: var(--grad-primary);
    color: var(--white);
    font-weight: 600;
    transition: all 0.3s var(--ease);
    white-space: nowrap;
}

.subscribe-form button:hover {
    background-position: 100% 50%;
}

/* ---------- 19. 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--grad-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: var(--shadow-glow);
    z-index: 900;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease);
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-4px);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ---------- 20. 滚动动画 ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ---------- 21. 滚动条美化 ---------- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-2);
}

::-webkit-scrollbar-thumb {
    background: var(--purple);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--purple-dark);
}

/* ---------- 22. 每日大赛排行榜 ---------- */
.leaderboard {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
}

.rank-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 24px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    overflow: hidden;
    border: 1px solid rgba(109, 94, 240, 0.05);
    cursor: pointer;
}

.rank-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--rank-color, var(--purple));
    transition: width 0.3s var(--ease);
}

.rank-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.rank-card:hover::before {
    width: 6px;
}

.rank-badge {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--white);
    background: var(--rank-color, var(--grad-primary));
    box-shadow: var(--shadow-sm);
}

.rank-card.r1 .rank-badge { background: linear-gradient(135deg, #FFD700, #FFA500); }
.rank-card.r2 .rank-badge { background: linear-gradient(135deg, #C0C0C0, #A0A0A0); }
.rank-card.r3 .rank-badge { background: linear-gradient(135deg, #CD7F32, #A0522D); }

.rank-info {
    flex: 1;
    min-width: 0;
}

.rank-info .title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.rank-info .sub {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.rank-info .sub .heat {
    display: flex;
    align-items: center;
    gap: 3px;
    color: var(--red);
    font-weight: 700;
}

.rank-info .sub .heat svg {
    width: 13px;
    height: 13px;
}

.rank-arrow {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(109, 94, 240, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--purple);
    transition: all 0.3s var(--ease);
}

.rank-card:hover .rank-arrow {
    background: var(--grad-primary);
    color: var(--white);
    transform: translateX(3px);
}

/* ---------- 23. AI 短视频专区 ---------- */
.ai-zone {
    position: relative;
    padding: 56px 0;
    border-radius: var(--r-xl);
    background: var(--dark);
    overflow: hidden;
}

.ai-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 30%, rgba(109, 94, 240, 0.25), transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 201, 255, 0.2), transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(255, 107, 157, 0.15), transparent 60%);
    z-index: 0;
}

.ai-zone > .container {
    position: relative;
    z-index: 2;
}

.ai-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--r-full);
    background: linear-gradient(135deg, rgba(109, 94, 240, 0.3), rgba(0, 201, 255, 0.3));
    border: 1px solid rgba(0, 201, 255, 0.4);
    color: #00C9FF;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    backdrop-filter: blur(10px);
}

.ai-tag .spark {
    width: 12px;
    height: 12px;
    animation: sparkle 1.5s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

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

.ai-section-header .eyebrow {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--r-full);
    background: rgba(0, 201, 255, 0.15);
    color: #00C9FF;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.ai-section-header h2 {
    color: var(--text-white);
    margin-bottom: 14px;
}

.ai-section-header p {
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* AI 视频网格 */
.ai-video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.ai-video-card {
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    aspect-ratio: 9 / 16;
    background: var(--dark-2);
    cursor: pointer;
    transition: all 0.3s var(--ease);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.ai-video-card:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(0, 201, 255, 0.3);
    box-shadow: 0 12px 40px rgba(0, 201, 255, 0.2);
}

.ai-video-card .thumb {
    position: absolute;
    inset: 0;
    background: var(--video-grad, var(--grad-cool));
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-video-card .thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.15), transparent 50%),
                      radial-gradient(circle at 70% 80%, rgba(255,255,255,0.1), transparent 50%);
}

.ai-video-card .thumb .glow-orb {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: orbPulse 3s ease-in-out infinite;
}

@keyframes orbPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
}

.ai-video-card .thumb .glow-orb svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.ai-video-card .ai-label {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 5;
    padding: 3px 10px;
    border-radius: var(--r-full);
    background: rgba(0, 201, 255, 0.9);
    color: var(--dark);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    display: flex;
    align-items: center;
    gap: 4px;
}

.ai-video-card .info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 4;
    padding: 14px 12px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    color: var(--white);
}

.ai-video-card .info .title {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 6px;
}

.ai-video-card .info .meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.7);
}

.ai-video-card .info .meta .views {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ai-video-card .info .meta .views svg {
    width: 12px;
    height: 12px;
}

/* ---------- 24. 魔改电视剧专区 ---------- */
.magic-zone {
    padding: 56px 0;
}

.magic-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 16px;
}

.magic-header .left h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.magic-header .left h2 .magic-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--grad-warm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    animation: magicSpin 4s linear infinite;
}

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

.magic-header .left h2 .magic-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.magic-header .left p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.magic-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.magic-tab {
    padding: 7px 16px;
    border-radius: var(--r-full);
    background: var(--white);
    color: var(--text-mid);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s var(--ease);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    border: 1px solid rgba(109, 94, 240, 0.06);
}

.magic-tab:hover { color: var(--pink); border-color: var(--pink); }

.magic-tab.active {
    background: var(--grad-warm);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(255, 107, 157, 0.3);
}

/* 剧集卡片 */
.drama-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.drama-card {
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    cursor: pointer;
    border: 1px solid rgba(109, 94, 240, 0.05);
}

.drama-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.drama-cover {
    position: relative;
    aspect-ratio: 3 / 4;
    background: var(--drama-grad, var(--grad-warm));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.drama-cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.2), transparent 50%),
                      radial-gradient(circle at 70% 80%, rgba(255,255,255,0.15), transparent 50%);
}

.drama-cover .drama-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 40%, rgba(0,0,0,0.5));
}

.drama-cover .drama-emoji {
    position: relative;
    z-index: 2;
    font-size: 3rem;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.drama-cover .magic-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 3;
    padding: 4px 10px;
    border-radius: var(--r-full);
    background: rgba(255, 107, 157, 0.95);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
}

.drama-cover .magic-badge svg {
    width: 12px;
    height: 12px;
}

.drama-cover .ep-count {
    position: absolute;
    bottom: 10px;
    right: 10px;
    z-index: 3;
    padding: 3px 10px;
    border-radius: var(--r-sm);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 600;
}

.drama-body {
    padding: 14px 16px;
}

.drama-body h3 {
    font-size: 0.98rem;
    margin-bottom: 6px;
    line-height: 1.4;
}

.drama-body .genre {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.drama-body .genre .tag {
    padding: 2px 8px;
    border-radius: var(--r-full);
    background: rgba(255, 107, 157, 0.1);
    color: var(--pink);
    font-size: 0.72rem;
    font-weight: 600;
}

.drama-body .stats {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.drama-body .stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.drama-body .stats svg {
    width: 14px;
    height: 14px;
}

/* ---------- 25. 创作者卡片 ---------- */
.creator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.creator-card {
    position: relative;
    padding: 32px 24px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    text-align: center;
    border: 1px solid rgba(109, 94, 240, 0.05);
    overflow: hidden;
}

.creator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--creator-grad, var(--grad-primary));
    opacity: 0.1;
    transition: opacity 0.3s var(--ease);
}

.creator-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.creator-card:hover::before {
    opacity: 0.15;
}

.creator-avatar {
    position: relative;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--creator-grad, var(--grad-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--white);
    box-shadow: var(--shadow-md);
    border: 4px solid var(--white);
    z-index: 2;
}

.creator-card h3 {
    position: relative;
    z-index: 2;
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.creator-card .creator-handle {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.creator-card .creator-bio {
    position: relative;
    z-index: 2;
    font-size: 0.85rem;
    color: var(--text-mid);
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.creator-stats {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 18px;
    padding: 14px 0;
    border-top: 1px solid rgba(109, 94, 240, 0.08);
    border-bottom: 1px solid rgba(109, 94, 240, 0.08);
}

.creator-stat .num {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-dark);
}

.creator-stat .label {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.creator-follow {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 10px;
    border-radius: var(--r-full);
    background: var(--grad-primary);
    color: var(--white);
    font-size: 0.88rem;
    font-weight: 600;
    transition: all 0.3s var(--ease);
}

.creator-follow:hover {
    background-position: 100% 50%;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* ---------- 26. FAQ 手风琴 ---------- */
.faq-container {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    border-radius: var(--r-md);
    background: var(--white);
    box-shadow: var(--shadow-sm);
    margin-bottom: 14px;
    overflow: hidden;
    border: 1px solid rgba(109, 94, 240, 0.06);
    transition: box-shadow 0.3s var(--ease);
}

.faq-item.open {
    box-shadow: var(--shadow-md);
    border-color: rgba(109, 94, 240, 0.15);
}

.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    transition: color 0.2s var(--ease);
}

.faq-q:hover {
    color: var(--purple);
}

.faq-q .faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(109, 94, 240, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--purple);
    transition: all 0.3s var(--ease);
}

.faq-item.open .faq-q .faq-icon {
    background: var(--grad-primary);
    color: var(--white);
    transform: rotate(45deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease);
}

.faq-item.open .faq-a {
    max-height: 300px;
}

.faq-a-inner {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* ---------- 27. AI 功能展示卡 ---------- */
.ai-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.ai-feature-card {
    padding: 28px 24px;
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    transition: all 0.3s var(--ease);
}

.ai-feature-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 201, 255, 0.3);
    transform: translateY(-4px);
}

.ai-feature-card .icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(109, 94, 240, 0.3), rgba(0, 201, 255, 0.3));
    border: 1px solid rgba(0, 201, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.ai-feature-card .icon svg {
    width: 24px;
    height: 24px;
    color: #00C9FF;
}

.ai-feature-card h3 {
    color: var(--text-white);
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.ai-feature-card p {
    color: var(--text-light);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ---------- 28. 实时热点滚动条 ---------- */
.hot-ticker {
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 12px 0;
    overflow: hidden;
    position: relative;
}

.hot-ticker .label {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--grad-warm);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 2;
    flex-shrink: 0;
}

.hot-ticker .label svg {
    width: 16px;
    height: 16px;
    animation: shake 0.5s ease-in-out infinite;
}

.hot-ticker-track {
    display: flex;
    gap: 40px;
    white-space: nowrap;
    animation: tickerScroll 30s linear infinite;
    padding-left: 100px;
}

@keyframes tickerScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.hot-ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.88rem;
    font-weight: 500;
}

.hot-ticker-item:hover {
    color: var(--purple-light);
}

.hot-ticker-item .rank {
    color: var(--pink);
    font-weight: 800;
}

/* ---------- 29. 下载页增强组件 ---------- */
.dl-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin: 48px 0;
}

.dl-step {
    position: relative;
    padding: 28px 20px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    text-align: center;
    transition: all 0.3s var(--ease);
}

.dl-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.dl-step .step-num {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--grad-primary);
    color: var(--white);
    font-size: 1rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.dl-step .step-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(109, 94, 240, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 10px auto 16px;
}

.dl-step .step-icon svg {
    width: 28px;
    height: 28px;
    color: var(--purple);
}

.dl-step h4 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.dl-step p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.qr-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 48px 0;
}

.qr-mockup {
    position: relative;
    aspect-ratio: 1;
    background: var(--white);
    border-radius: var(--r-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    padding: 32px;
}

.qr-mockup::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--r-xl);
    background: linear-gradient(135deg, rgba(109, 94, 240, 0.05), rgba(255, 107, 157, 0.05));
    z-index: 0;
}

.qr-pattern {
    position: relative;
    z-index: 2;
    width: 70%;
    aspect-ratio: 1;
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    grid-template-rows: repeat(11, 1fr);
    gap: 2px;
}

.qr-pattern .cell {
    border-radius: 3px;
    background: var(--dark);
}

.qr-pattern .cell.empty {
    background: transparent;
}

.qr-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 28%;
    aspect-ratio: 1;
    border-radius: 12px;
    background: var(--grad-aurora);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 3;
}

.qr-center svg {
    width: 50%;
    height: 50%;
    color: var(--white);
}

.qr-info h2 {
    margin-bottom: 14px;
}

.qr-info p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.qr-info .qr-tips {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qr-tip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--r-md);
    background: rgba(109, 94, 240, 0.04);
    border: 1px solid rgba(109, 94, 240, 0.06);
}

.qr-tip .tip-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--grad-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qr-tip .tip-icon svg {
    width: 18px;
    height: 18px;
    color: var(--white);
}

.qr-tip .tip-text {
    font-size: 0.88rem;
    color: var(--text-mid);
}

.qr-tip .tip-text strong {
    color: var(--text-dark);
    display: block;
    margin-bottom: 2px;
}

/* ---------- 30. 关于页增强 ---------- */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.mission-card {
    padding: 32px;
    border-radius: var(--r-lg);
    background: var(--white);
    box-shadow: var(--shadow-card);
    transition: all 0.3s var(--ease);
    border: 1px solid rgba(109, 94, 240, 0.05);
    position: relative;
    overflow: hidden;
}

.mission-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: var(--mission-grad, var(--grad-primary));
    opacity: 0.05;
    border-radius: 50%;
    transform: translate(40px, -40px);
    transition: transform 0.4s var(--ease);
}

.mission-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.mission-card:hover::after {
    transform: translate(60px, -60px);
}

.mission-card .icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--mission-grad, var(--grad-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.mission-card .icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

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

.mission-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.value-card {
    padding: 24px;
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s var(--ease);
    text-align: center;
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
}

.value-card .emoji {
    font-size: 2.5rem;
    margin-bottom: 12px;
    display: block;
}

.value-card h4 {
    color: var(--text-white);
    font-size: 1rem;
    margin-bottom: 8px;
}

.value-card p {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ---------- 31. 统计大数字区 ---------- */
.big-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.big-stat {
    text-align: center;
    padding: 32px 16px;
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s var(--ease);
}

.big-stat:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-3px);
}

.big-stat .num {
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--grad-aurora);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 10px;
}

.big-stat .label {
    color: var(--text-light);
    font-size: 0.92rem;
}

/* ---------- 32. 更新日志 ---------- */
.update-log {
    max-width: 760px;
    margin: 0 auto;
}

.update-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(109, 94, 240, 0.08);
}

.update-item:last-child {
    border-bottom: none;
}

.update-version {
    flex-shrink: 0;
    width: 72px;
    text-align: center;
}

.update-version .v-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--r-full);
    background: var(--grad-primary);
    color: var(--white);
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.update-version .v-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.update-content h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.update-content ul {
    padding-left: 20px;
}

.update-content ul li {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    list-style: disc;
}

.update-content .tag-new {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--r-full);
    background: rgba(0, 230, 118, 0.1);
    color: var(--green);
    font-size: 0.72rem;
    font-weight: 700;
    margin-left: 6px;
}

.update-content .tag-fix {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--r-full);
    background: rgba(255, 182, 39, 0.1);
    color: var(--amber);
    font-size: 0.72rem;
    font-weight: 700;
    margin-left: 6px;
}

/* ---------- 22. 响应式 ---------- */
@media (max-width: 968px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(250, 250, 255, 0.97);
        backdrop-filter: blur(20px);
        padding: 16px 24px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        animation: slideDown 0.3s var(--ease);
    }

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

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        width: 100%;
        padding: 14px 16px;
        text-align: left;
    }

    .nav-link.active::after {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-actions .btn:not(.menu-toggle) {
        display: none;
    }

    .download-hero,
    .about-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .phone-mockup {
        order: -1;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-2xl) 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-stats {
        gap: 28px;
    }

    .hero-stat .num {
        font-size: 1.5rem;
    }

    .cta-banner {
        padding: 40px 24px;
    }

    .event-grid {
        grid-template-columns: 1fr;
    }

    .cat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .video-grid-vertical {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .about-visual {
        height: 300px;
    }

    .timeline::before {
        left: 16px;
    }

    .timeline-item {
        padding-left: 48px;
    }

    .timeline-dot {
        left: 8px;
    }

    .store-buttons {
        flex-direction: column;
    }

    .store-btn {
        justify-content: center;
    }

    .float-card {
        display: none;
    }

    .back-to-top {
        bottom: 16px;
        right: 16px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .cat-grid {
        grid-template-columns: 1fr;
    }

    .video-grid-vertical {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-search {
        flex-direction: column;
        border-radius: var(--r-lg);
        padding: 8px;
    }

    .hero-search input {
        width: 100%;
    }

    .hero-search button {
        width: 100%;
        border-radius: var(--r-full);
    }
}

/* ---------- 23. 新组件响应式 ---------- */
@media (max-width: 768px) {
    .leaderboard {
        grid-template-columns: 1fr;
    }
    .ai-video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .drama-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    .creator-grid {
        grid-template-columns: 1fr;
    }
    .qr-section {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .dl-steps {
        grid-template-columns: 1fr 1fr;
    }
    .big-stats {
        grid-template-columns: 1fr 1fr;
    }
    .big-stat .num {
        font-size: 2rem;
    }
    .magic-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .update-item {
        flex-direction: column;
        gap: 8px;
    }
    .hot-ticker .label {
        width: 70px;
        font-size: 0.72rem;
    }
    .hot-ticker-track {
        padding-left: 80px;
    }
}

@media (max-width: 480px) {
    .ai-video-grid {
        grid-template-columns: 1fr 1fr;
    }
    .drama-grid {
        grid-template-columns: 1fr;
    }
    .dl-steps {
        grid-template-columns: 1fr;
    }
    .big-stats {
        grid-template-columns: 1fr;
    }
    .faq-q {
        padding: 16px 18px;
        font-size: 0.92rem;
    }
}

/* ---------- 24. 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

:focus-visible {
    outline: 3px solid var(--purple);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 24. 工具类 ---------- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 40px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }