/* ========================================
   姐妹花 - 主样式文件
   品牌色：粉色#FF6B9D 紫色#8B5CF6 青色#06B6D4
   ======================================== */

/* === 基础重置 === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #FF6B9D;
    --primary-dark: #E91E8C;
    --secondary: #8B5CF6;
    --accent: #06B6D4;
    --bg-dark: #0F0A1E;
    --bg-card: #1A1030;
    --bg-card2: #1E1535;
    --text-primary: #F0E6FF;
    --text-secondary: #B8A9D0;
    --text-muted: #7A6A9A;
    --border: rgba(139,92,246,0.2);
    --gradient-main: linear-gradient(135deg, #FF6B9D 0%, #8B5CF6 50%, #06B6D4 100%);
    --gradient-card: linear-gradient(145deg, #1A1030, #1E1535);
    --shadow-pink: 0 0 20px rgba(255,107,157,0.3);
    --shadow-purple: 0 0 20px rgba(139,92,246,0.3);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "苹方", sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--secondary);
}

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

ul, ol {
    list-style: none;
}

/* === 滚动条 === */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

/* === 通用工具类 === */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-main);
    color: #fff;
    box-shadow: var(--shadow-pink);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255,107,157,0.5);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 0.8rem;
}

.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-hot {
    background: rgba(255,107,157,0.2);
    color: var(--primary);
    border: 1px solid rgba(255,107,157,0.4);
}

.tag-new {
    background: rgba(6,182,212,0.2);
    color: var(--accent);
    border: 1px solid rgba(6,182,212,0.4);
}

.tag-ai {
    background: rgba(139,92,246,0.2);
    color: var(--secondary);
    border: 1px solid rgba(139,92,246,0.4);
}

/* === 顶部公告栏 === */
.top-bar {
    background: linear-gradient(90deg, #FF6B9D, #8B5CF6, #06B6D4);
    padding: 6px 0;
    text-align: center;
    font-size: 0.8rem;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.top-bar-text {
    display: inline-block;
    animation: marquee 30s linear infinite;
    white-space: nowrap;
}

@keyframes marquee {
    0% { transform: translateX(100vw); }
    100% { transform: translateX(-100%); }
}

/* === 导航栏 === */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 10, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0;
    transition: var(--transition);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.navbar-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
}

.brand-name {
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 6px 12px;
    border-radius: 8px;
    transition: var(--transition);
    white-space: nowrap;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(255,107,157,0.1);
}

/* === 搜索框 === */
.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 6px 16px;
    gap: 8px;
    min-width: 200px;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,107,157,0.1);
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 100%;
    font-family: inherit;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.search-box button:hover {
    color: var(--primary);
}

/* 搜索下拉提示 */
.search-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    display: none;
    z-index: 100;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.search-wrapper {
    position: relative;
}

.search-wrapper:focus-within .search-dropdown {
    display: block;
}

.search-hot-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.search-hot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.search-hot-tag {
    padding: 4px 10px;
    background: rgba(255,107,157,0.1);
    border: 1px solid rgba(255,107,157,0.2);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.search-hot-tag:hover {
    background: rgba(255,107,157,0.2);
    color: var(--primary);
}

/* 汉堡菜单 */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

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

/* === Hero Banner === */
.hero {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0F0A1E 0%, #1A0A2E 50%, #0A1A2E 100%);
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(255,107,157,0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 50%, rgba(139,92,246,0.15) 0%, transparent 60%);
}

.hero-img {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 55%;
    object-fit: cover;
    object-position: center top;
    opacity: 0.6;
    mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
    -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255,107,157,0.15);
    border: 1px solid rgba(255,107,157,0.3);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
    0%, 100% { border-color: rgba(255,107,157,0.3); }
    50% { border-color: rgba(255,107,157,0.7); }
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: blink 1s infinite;
}

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

.hero h1 {
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: #fff;
}

.hero h1 span {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-top: 3rem;
}

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

.hero-stat-num {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* === 视频卡片 === */
.video-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,107,157,0.4);
    box-shadow: var(--shadow-pink);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: #0a0a1a;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    transition: var(--transition);
}

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

.play-icon {
    width: 56px;
    height: 56px;
    background: rgba(255,107,157,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    transform: scale(0.8);
    transition: var(--transition);
    box-shadow: 0 0 30px rgba(255,107,157,0.6);
}

.video-card:hover .play-icon {
    transform: scale(1);
}

.play-icon svg {
    width: 22px;
    height: 22px;
    fill: #fff;
    margin-left: 3px;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: #fff;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
}

.video-info {
    padding: 12px;
}

.video-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.video-stats {
    display: flex;
    gap: 10px;
}

.video-stat {
    display: flex;
    align-items: center;
    gap: 3px;
}

.video-stat svg {
    width: 12px;
    height: 12px;
    fill: currentColor;
}

/* === 视频网格 === */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.video-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* === 功能模块卡片 === */
.feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-main);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,107,157,0.3);
    box-shadow: var(--shadow-purple);
}

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

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-icon-pink { background: rgba(255,107,157,0.15); }
.feature-icon-purple { background: rgba(139,92,246,0.15); }
.feature-icon-cyan { background: rgba(6,182,212,0.15); }
.feature-icon-gold { background: rgba(245,158,11,0.15); }

.feature-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === 专家卡片 === */
.expert-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.expert-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,107,157,0.4);
    box-shadow: var(--shadow-pink);
}

.expert-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin: 0 auto 14px;
    border: 3px solid transparent;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                var(--gradient-main) border-box;
    overflow: hidden;
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.expert-title {
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.expert-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 14px;
}

.expert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-bottom: 14px;
}

.expert-tag {
    padding: 2px 8px;
    background: rgba(139,92,246,0.15);
    border: 1px solid rgba(139,92,246,0.3);
    border-radius: 20px;
    font-size: 0.7rem;
    color: var(--secondary);
}

.expert-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

/* === 评价卡片 === */
.review-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.review-card:hover {
    border-color: rgba(255,107,157,0.3);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.review-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.review-user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.review-user-type {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.review-stars {
    margin-left: auto;
    color: #FBBF24;
    font-size: 0.85rem;
}

.review-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.review-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.review-likes {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.review-likes:hover {
    color: var(--primary);
}

/* === FAQ === */
.faq-item {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.open {
    border-color: rgba(255,107,157,0.4);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255,107,157,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(255,107,157,0.2);
}

.faq-answer {
    padding: 0 22px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding: 0 22px 18px;
}

/* === 合作品牌 === */
.brand-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    align-items: center;
}

.brand-logo-item {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    transition: var(--transition);
}

.brand-logo-item:hover {
    border-color: rgba(255,107,157,0.4);
    transform: translateY(-2px);
}

.brand-logo-text {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    transition: var(--transition);
}

.brand-logo-item:hover .brand-logo-text {
    color: var(--primary);
}

/* === 联系我们 === */
.contact-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

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

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,107,157,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* === 社区入口 === */
.community-entry {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.community-entry-item {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.community-entry-item:hover {
    border-color: rgba(255,107,157,0.4);
    transform: translateY(-2px);
}

.community-entry-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.community-entry-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

/* === 底部 === */
.footer {
    background: #080614;
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    margin-top: 80px;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.footer-brand-name {
    font-size: 1.2rem;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    text-decoration: none;
}

.footer-social-btn:hover {
    background: rgba(255,107,157,0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.footer-col-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-link:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-qrcodes {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

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

.footer-qr img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.footer-qr-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 6px;
}

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

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

.footer-copyright a {
    color: var(--primary);
}

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

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

/* === 分享按钮 === */
.share-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

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

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.03);
    color: var(--text-secondary);
    text-decoration: none;
}

.share-btn:hover {
    transform: translateY(-2px);
}

.share-wechat:hover { border-color: #07C160; color: #07C160; background: rgba(7,193,96,0.1); }
.share-weibo:hover { border-color: #E6162D; color: #E6162D; background: rgba(230,22,45,0.1); }
.share-douyin:hover { border-color: #FE2C55; color: #FE2C55; background: rgba(254,44,85,0.1); }
.share-bilibili:hover { border-color: #00A1D6; color: #00A1D6; background: rgba(0,161,214,0.1); }

/* === 面包屑 === */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 16px 0;
}

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

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

.breadcrumb-sep {
    color: var(--text-muted);
    opacity: 0.5;
}

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

/* === 分页 === */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border);
    background: var(--gradient-card);
    color: var(--text-secondary);
    text-decoration: none;
}

.page-btn:hover,
.page-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* === 加载动画 === */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,107,157,0.3);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* === 滚动到顶部 === */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-pink);
    border: none;
    color: #fff;
    font-size: 1.1rem;
}

.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-3px);
}

/* === 章节间距 === */
.section {
    padding: 70px 0;
}

.section-alt {
    background: rgba(255,255,255,0.02);
}

/* === 分隔线 === */
.divider {
    height: 1px;
    background: var(--border);
    margin: 40px 0;
}

/* === 渐变文字 === */
.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === 动画 === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* === 响应式 === */
@media (max-width: 1200px) {
    .video-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
    .hero h1 { font-size: 2.4rem; }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .navbar-nav { display: none; }
    .navbar-toggle { display: flex; }
    .search-box { min-width: 160px; }
    .community-entry { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .hero { min-height: 400px; }
    .hero h1 { font-size: 1.8rem; }
    .hero-img { display: none; }
    .hero-stats { gap: 20px; }
    .hero-stat-num { font-size: 1.4rem; }
    .section { padding: 50px 0; }
    .section-title { font-size: 1.6rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .video-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
    .video-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .hero-stats { flex-wrap: wrap; }
    .community-entry { grid-template-columns: 1fr; }
    .container { padding: 0 14px; }
}

/* === 移动端导航菜单 === */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(15, 10, 30, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 20px;
    z-index: 999;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu.open {
    display: flex;
}

.mobile-nav-link {
    color: var(--text-secondary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    display: block;
}

.mobile-nav-link:hover {
    color: var(--primary);
    background: rgba(255,107,157,0.1);
}

/* === 视频播放模态框 === */
.video-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.video-modal.open {
    display: flex;
}

.video-modal-inner {
    width: 90%;
    max-width: 800px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.video-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    background: rgba(0,0,0,0.5);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition);
}

.video-modal-close:hover {
    background: var(--primary);
}

.video-modal video {
    width: 100%;
    aspect-ratio: 16/9;
    display: block;
    background: #000;
}

/* === 标签页 === */
.tabs {
    display: flex;
    gap: 4px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 4px;
    margin-bottom: 24px;
    overflow-x: auto;
}

.tab-btn {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: none;
    color: var(--text-muted);
    white-space: nowrap;
    font-family: inherit;
}

.tab-btn.active {
    background: var(--gradient-main);
    color: #fff;
}

.tab-btn:hover:not(.active) {
    color: var(--text-primary);
}

/* === 统计数字 === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(255,107,157,0.3);
    transform: translateY(-2px);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 6px;
}

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

@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* === 内页Banner === */
.page-hero {
    background: linear-gradient(135deg, #0F0A1E, #1A0A2E);
    padding: 50px 0;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(255,107,157,0.1) 0%, transparent 60%);
}

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

.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.page-hero p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* === 侧边栏 === */
.sidebar-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.sidebar-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

/* === 热门标签 === */
.hot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hot-tag {
    padding: 5px 12px;
    background: rgba(255,107,157,0.08);
    border: 1px solid rgba(255,107,157,0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.hot-tag:hover {
    background: rgba(255,107,157,0.15);
    color: var(--primary);
    border-color: rgba(255,107,157,0.4);
}

/* === 进度条 === */
.progress-bar {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 6px;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-main);
    border-radius: 2px;
    transition: width 1s ease;
}

/* === 通知提示 === */
.notice-bar {
    background: rgba(255,107,157,0.08);
    border: 1px solid rgba(255,107,157,0.2);
    border-radius: var(--radius);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.notice-icon {
    color: var(--primary);
    font-size: 1rem;
    flex-shrink: 0;
}

/* === 补充变量 === */
:root {
    --gradient-primary: linear-gradient(135deg, #FF6B9D, #8B5CF6);
    --gradient-secondary: linear-gradient(135deg, #8B5CF6, #06B6D4);
    --gradient-gold: linear-gradient(135deg, #F59E0B, #EF4444);
}

/* === 补充特色图标颜色 === */
.feature-icon-gold {
    background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(239,68,68,0.15));
    color: #F59E0B;
    border: 1px solid rgba(245,158,11,0.3);
}

/* === 补充联系卡片样式 === */
.contact-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.contact-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}
.contact-icon {
    font-size: 1.2rem;
    margin-right: 12px;
    flex-shrink: 0;
}

/* === 补充专家卡片样式 === */
.expert-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 6px;
}

/* === 补充统计卡片样式 === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.stat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}
.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-pink);
}
.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}

/* ===== 视频精彩预览模块 ===== */
.video-preview-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    align-items: start;
}
.video-preview-main {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.preview-video {
    width: 100%;
    aspect-ratio: 16/9;
    display: block;
    background: #000;
}
.video-preview-info { padding: 16px; }
.video-preview-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.5;
}
.video-preview-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}
.video-preview-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.video-preview-list { display: flex; flex-direction: column; gap: 12px; }
.video-preview-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.video-preview-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(255,107,157,0.15);
}
.preview-video-sm {
    width: 100%;
    aspect-ratio: 16/9;
    display: block;
    background: #000;
    object-fit: cover;
}
.video-preview-item-info {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}
.video-preview-item-info h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.video-preview-meta { font-size: 0.75rem; color: var(--text-muted); }

/* ===== 最新资讯模块 ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255,107,157,0.2);
    border-color: var(--primary);
}
.news-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.news-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.news-card:hover .news-img img { transform: scale(1.05); }
.news-tag {
    position: absolute;
    top: 10px; left: 10px;
    background: var(--primary);
    color: #fff;
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
}
.news-body { padding: 16px; }
.news-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; line-height: 1.5; }
.news-link { color: var(--text-primary); text-decoration: none; transition: color 0.2s; }
.news-link:hover { color: var(--primary); }
.news-excerpt {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.75rem; color: var(--text-muted); }
.news-author { color: var(--primary); font-weight: 600; }

/* ===== 面包屑栏 ===== */
.breadcrumb-bar {
    background: rgba(26,16,48,0.8);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    flex-wrap: wrap;
}
.breadcrumb-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumb-link:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--text-muted); }
.breadcrumb-current { color: var(--text-secondary); }

/* ===== 页面Hero ===== */
.page-hero {
    background: linear-gradient(135deg, #1A0A2E 0%, #0F0A1E 100%);
    padding: 60px 0 40px;
    border-bottom: 1px solid var(--border);
}
.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}
.page-hero p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
}

/* ===== 响应式补充 ===== */
@media (max-width: 1024px) {
    .video-preview-grid { grid-template-columns: 1fr; }
    .video-preview-list { display: grid; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .news-grid { grid-template-columns: 1fr; }
    .video-preview-list { grid-template-columns: 1fr; }
    .video-preview-item { grid-template-columns: 120px 1fr; }
}