/*
 * 海角 - 全局样式表 v2.0
 * 品牌色：主色 #E91E8C | 辅色 #FF6B6B | 背景 #1a0a2e
 * 百度SEO EEAT标准 | 移动端优先 | 性能优化
 */

/* ===== CSS变量 ===== */
:root {
    --primary: #E91E8C;
    --secondary: #FF6B6B;
    --bg-dark: #1a0a2e;
    --bg-mid: #2a1542;
    --bg-deep: #0d0418;
    --text: #ffffff;
    --text-muted: #b3a5c4;
    --grad: linear-gradient(135deg, #E91E8C, #FF6B6B);
    --radius: 12px;
    --shadow: 0 8px 30px rgba(0,0,0,0.4);
    --trans: all 0.3s ease;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: var(--text); text-decoration: none; transition: var(--trans); }
a:hover { color: var(--primary); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ===== 布局 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-padding { padding: 80px 0; }
.bg-mid { background: var(--bg-mid); }
.grad-text { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* ===== 标题 ===== */
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 15px;
    position: relative;
    display: block;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--grad);
    border-radius: 2px;
    margin: 12px auto 0;
}
.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 40px;
    margin-top: 5px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--trans);
    border: none;
    outline: none;
    font-size: 1rem;
}
.btn-primary {
    background: var(--grad);
    color: white;
    box-shadow: 0 4px 15px rgba(233,30,140,0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(233,30,140,0.55); color: white; }
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: white; }
.btn-sm {
    display: inline-block;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--trans);
}
.btn-sm:hover { color: var(--secondary); }
.section-cta { text-align: center; margin-top: 40px; }

/* ===== 导航 ===== */
.header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13,4,24,0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: var(--trans);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}
.logo-area { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 44px; width: auto; }
.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-pc .nav-menu { display: flex; gap: 28px; }
.nav-link {
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    white-space: nowrap;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--grad);
    transition: var(--trans);
}
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--primary); }

/* ===== 汉堡菜单 ===== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1100;
}
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--trans);
}
.hamburger.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ===== 移动端导航 ===== */
.nav-mobile {
    display: none;
    background: rgba(13,4,24,0.98);
    border-top: 1px solid rgba(255,255,255,0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.nav-mobile.open { max-height: 400px; }
.nav-mobile ul { padding: 10px 0; }
.nav-mobile li a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: var(--trans);
}
.nav-mobile li a:hover { background: rgba(233,30,140,0.1); color: var(--primary); padding-left: 32px; }

/* ===== 搜索框 ===== */
.search-container {
    background: var(--bg-mid);
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    margin-top: 72px;
}
.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    position: relative;
}
.search-input {
    width: 100%;
    padding: 11px 50px 11px 20px;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.35);
    color: white;
    font-size: 0.95rem;
    outline: none;
    transition: var(--trans);
}
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 12px rgba(233,30,140,0.2); }
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
    position: absolute;
    right: 5px; top: 5px;
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--grad);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--trans);
}
.search-btn:hover { transform: scale(1.1); }

/* ===== Hero Banner ===== */
.hero {
    height: 88vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(13,4,24,0.92) 0%, rgba(13,4,24,0.35) 100%);
}
.hero-content { position: relative; z-index: 10; max-width: 620px; }
.hero-title {
    font-size: 3.8rem;
    font-weight: 900;
    margin-bottom: 15px;
    line-height: 1.15;
}
.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 500;
}
.hero-desc { font-size: 1rem; color: var(--text-muted); margin-bottom: 35px; }
.hero-btns { display: flex; gap: 18px; flex-wrap: wrap; }

/* ===== 数据统计 ===== */
.stats-bar { background: linear-gradient(135deg, var(--bg-mid), var(--bg-dark)); padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-item { padding: 10px; }
.stat-num {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
}
.stat-label { color: var(--text-muted); font-size: 0.9rem; }

/* ===== 视频卡片 ===== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
.video-card {
    background: var(--bg-mid);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--trans);
    border: 1px solid rgba(255,255,255,0.05);
}
.video-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: rgba(233,30,140,0.3); }
.video-thumb-container { position: relative; padding-top: 56.25%; overflow: hidden; }
.video-thumb {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.video-card:hover .video-thumb { transform: scale(1.06); }
.video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--trans);
}
.video-card:hover .video-overlay { opacity: 1; }
.play-icon {
    width: 58px; height: 58px;
    background: var(--grad);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 25px rgba(233,30,140,0.6);
    transform: scale(0.8);
    transition: transform 0.3s cubic-bezier(0.175,0.885,0.32,1.275);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::before {
    content: '';
    width: 0; height: 0;
    border-style: solid;
    border-width: 9px 0 9px 15px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}
.video-duration {
    position: absolute;
    bottom: 8px; right: 8px;
    background: rgba(0,0,0,0.8);
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 600;
}
.video-info { padding: 18px; }
.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.45;
}
.video-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}
.video-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-bottom: 10px;
}
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.video-tag {
    background: rgba(233,30,140,0.12);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===== 功能卡片 ===== */
.feature-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
    background: var(--bg-dark);
    border-radius: var(--radius);
    padding: 30px 24px;
    border: 1px solid rgba(233,30,140,0.15);
    transition: var(--trans);
}
.feature-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.feature-icon { font-size: 2.8rem; margin-bottom: 15px; }
.feature-card h4 { font-size: 1.2rem; margin-bottom: 6px; color: var(--primary); }
.feature-sub { font-size: 0.85rem; color: var(--secondary); margin-bottom: 12px; font-weight: 500; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== 娱乐专区 ===== */
.ent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ent-card { background: var(--bg-mid); border-radius: var(--radius); overflow: hidden; transition: var(--trans); }
.ent-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.ent-thumb-wrap { position: relative; padding-top: 133%; overflow: hidden; }
.ent-thumb-wrap img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.ent-card:hover .ent-thumb-wrap img { transform: scale(1.06); }
.ent-thumb-wrap .video-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.4); display: flex; justify-content: center; align-items: center; opacity: 0; transition: var(--trans); }
.ent-card:hover .video-overlay { opacity: 1; }
.ent-badge { position: absolute; top: 10px; left: 10px; background: var(--grad); color: white; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.ent-info { padding: 15px; }
.ent-info h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; }
.ent-info p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 8px; }

/* ===== AI赋能 ===== */
.ai-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ai-card { background: var(--bg-dark); border-radius: var(--radius); padding: 28px 20px; border: 1px solid rgba(255,107,107,0.15); transition: var(--trans); }
.ai-card:hover { border-color: var(--secondary); transform: translateY(-4px); }
.ai-icon { font-size: 2.5rem; margin-bottom: 15px; }
.ai-card h4 { font-size: 1.1rem; margin-bottom: 10px; color: var(--secondary); }
.ai-card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 15px; line-height: 1.7; }

/* ===== 社区功能 ===== */
.community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.comm-card { background: var(--bg-mid); border-radius: var(--radius); padding: 28px 22px; border: 1px solid rgba(255,255,255,0.05); transition: var(--trans); }
.comm-card:hover { border-color: var(--primary); }
.comm-icon { font-size: 2.5rem; margin-bottom: 15px; }
.comm-card h4 { font-size: 1.1rem; margin-bottom: 8px; color: var(--primary); }
.comm-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== 专家卡片 ===== */
.expert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 28px; }
.expert-card {
    background: var(--bg-mid);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: var(--trans);
    border: 1px solid rgba(255,255,255,0.05);
}
.expert-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.expert-avatar {
    width: 110px; height: 110px;
    border-radius: 50%;
    margin: 0 auto 18px;
    border: 3px solid var(--primary);
    object-fit: cover;
}
.expert-name { font-size: 1.25rem; font-weight: 700; margin-bottom: 4px; }
.expert-title { color: var(--primary); font-size: 0.88rem; margin-bottom: 6px; }
.expert-role-badge {
    display: inline-block;
    background: rgba(233,30,140,0.12);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    margin-bottom: 12px;
}
.expert-desc { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 8px; line-height: 1.6; }
.expert-award { color: var(--secondary); font-size: 0.82rem; margin-bottom: 5px; }
.expert-social { color: var(--text-muted); font-size: 0.8rem; margin-bottom: 15px; }
.expert-btns { display: flex; gap: 10px; justify-content: center; }

/* ===== 合作伙伴 ===== */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.partner-card {
    background: var(--bg-mid);
    border-radius: var(--radius);
    padding: 22px 15px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--trans);
}
.partner-card:hover { border-color: rgba(233,30,140,0.3); transform: translateY(-3px); }
.partner-icon { font-size: 2rem; margin-bottom: 10px; }
.partner-name { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.partner-type { color: var(--text-muted); font-size: 0.78rem; }

/* ===== How-To ===== */
.howto-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 30px; }
.howto-step { text-align: center; padding: 20px; }
.step-num {
    width: 70px; height: 70px;
    background: var(--grad);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    font-weight: 800;
}
.howto-step h4 { font-size: 1.15rem; margin-bottom: 8px; }
.howto-step h5 { color: var(--primary); font-size: 0.85rem; margin-bottom: 12px; font-weight: 500; }
.howto-step p { color: var(--text-muted); font-size: 0.9rem; }
.howto-faq { background: var(--bg-mid); border-radius: var(--radius); padding: 20px; }

/* ===== 联系区域 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; gap: 14px; background: var(--bg-mid); padding: 14px; border-radius: 8px; }
.ci { font-size: 1.4rem; flex-shrink: 0; }
.community-entries { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.entry-card { background: var(--bg-mid); border-radius: 10px; padding: 16px; display: flex; gap: 12px; align-items: center; }
.entry-icon { font-size: 1.8rem; flex-shrink: 0; }
.qr-row { display: flex; gap: 20px; justify-content: center; }
.qr-item { text-align: center; }
.qr-code { width: 90px; height: 90px; background: white; border-radius: 8px; margin: 0 auto 8px; padding: 4px; }

/* ===== 评价 ===== */
.reviews-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.review-card {
    background: var(--bg-mid);
    padding: 24px;
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
    transition: var(--trans);
}
.review-card:hover { transform: translateY(-3px); }
.review-stars { font-size: 1rem; margin-bottom: 12px; }
.review-text { font-style: italic; color: var(--text-muted); margin-bottom: 15px; font-size: 0.95rem; line-height: 1.7; }
.review-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.review-author { font-weight: 600; color: var(--secondary); font-size: 0.9rem; }
.review-date { color: var(--text-muted); font-size: 0.8rem; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--bg-mid); border-radius: 8px; margin-bottom: 12px; overflow: hidden; border: 1px solid rgba(255,255,255,0.05); }
.faq-q {
    padding: 18px 20px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--trans);
}
.faq-q:hover { color: var(--primary); }
.faq-arrow { transition: var(--trans); flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a { padding: 0 20px 18px; color: var(--text-muted); font-size: 0.93rem; display: none; line-height: 1.8; }
.faq-item.open .faq-a { display: block; }

/* ===== 分享栏 ===== */
.share-bar { padding: 35px 0; background: var(--bg-dark); border-top: 1px solid rgba(255,255,255,0.05); text-align: center; }
.share-bar h4 { margin-bottom: 18px; font-size: 1.1rem; }
.share-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.share-btn { padding: 9px 22px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; color: white; transition: var(--trans); }
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; color: white; }
.share-wx { background: #07C160; }
.share-wb { background: #E6162D; }
.share-dy { background: #000; border: 1px solid #333; }
.share-bili { background: #00A1D6; }

/* ===== 页脚 ===== */
.footer { background: var(--bg-deep); padding: 60px 0 30px; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-heading { font-size: 1.1rem; margin-bottom: 18px; color: var(--primary); font-weight: 600; }
.footer-desc { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 18px; line-height: 1.7; }
.footer-logo { height: 38px; width: auto; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; transition: var(--trans); }
.footer-links a:hover { color: var(--primary); padding-left: 5px; }
.footer-contact li { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 8px; }
.footer-contact span { color: var(--text); font-weight: 500; }
.qr-group { display: flex; gap: 15px; }
.qr-item { text-align: center; }
.qr-item p { font-size: 0.78rem; color: var(--text-muted); margin-top: 6px; }
.social-icons { display: flex; gap: 8px; margin-top: 15px; }
.social-icon { padding: 5px 12px; border-radius: 6px; font-size: 0.8rem; font-weight: 600; color: white; }
.weibo { background: #E6162D; }
.douyin { background: #000; border: 1px solid #333; }
.bilibili { background: #00A1D6; }
.footer-bottom {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(255,255,255,0.08);
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.8;
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== 面包屑 ===== */
.breadcrumb {
    padding: 14px 0;
    background: var(--bg-deep);
    margin-top: 72px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.88rem;
}
.breadcrumb a { color: var(--primary); }
.bc-sep { margin: 0 8px; color: var(--text-muted); }

/* ===== 页面Hero ===== */
.page-hero {
    padding: 60px 0 40px;
    background: linear-gradient(135deg, var(--bg-mid), var(--bg-dark));
}
.page-hero h1 { font-size: 2.4rem; font-weight: 800; margin-bottom: 12px; }
.page-hero-sub { font-size: 1.1rem; color: var(--text-muted); font-weight: 400; }

/* ===== 分类导航 ===== */
.cat-nav { padding: 16px 0; background: var(--bg-mid); border-bottom: 1px solid rgba(255,255,255,0.05); }
.cat-list { display: flex; gap: 10px; flex-wrap: wrap; }
.cat-btn {
    padding: 7px 18px;
    border-radius: 20px;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    background: var(--bg-dark);
    color: var(--text-muted);
    transition: var(--trans);
}
.cat-btn:hover, .cat-btn.active { background: var(--grad); color: white; }

/* ===== 社区直播 ===== */
.live-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.live-card { background: var(--bg-mid); border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(233,30,140,0.2); transition: var(--trans); }
.live-card:hover { transform: translateY(-4px); border-color: var(--primary); }
.live-thumb { background: linear-gradient(135deg, rgba(233,30,140,0.15), rgba(255,107,107,0.15)); height: 110px; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; position: relative; }
.live-badge { position: absolute; top: 8px; left: 8px; background: #E91E8C; color: white; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.live-tag { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.7); color: white; padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; }
.live-info { padding: 14px; }
.live-info h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.live-info p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 8px; }
.live-viewers { font-size: 0.8rem; color: var(--primary); }

/* ===== 社区美图 ===== */
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.photo-item { border-radius: var(--radius); overflow: hidden; position: relative; }
.photo-item img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.5s ease; }
.photo-item:hover img { transform: scale(1.05); }
.photo-overlay { position: absolute; bottom: 0; left: 0; width: 100%; background: linear-gradient(transparent, rgba(0,0,0,0.8)); padding: 15px; font-size: 0.85rem; opacity: 0; transition: var(--trans); }
.photo-item:hover .photo-overlay { opacity: 1; }

/* ===== 情感话题 ===== */
.topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.topic-card { background: var(--bg-dark); border-radius: var(--radius); padding: 25px 18px; border: 1px solid rgba(233,30,140,0.15); transition: var(--trans); }
.topic-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.topic-icon { font-size: 2.4rem; margin-bottom: 14px; }
.topic-card h4 { font-size: 1rem; margin-bottom: 10px; color: var(--primary); }
.topic-card p { color: var(--text-muted); font-size: 0.87rem; margin-bottom: 15px; line-height: 1.7; }

/* ===== 创作工具 ===== */
.tool-card { background: var(--bg-mid); border-radius: var(--radius); padding: 28px; border: 1px solid rgba(255,255,255,0.05); transition: var(--trans); }
.tool-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.tool-icon { font-size: 2.5rem; margin-bottom: 14px; }
.tool-card h4 { font-size: 1.2rem; margin-bottom: 6px; }
.tool-sub { color: var(--secondary); font-size: 0.85rem; margin-bottom: 12px; font-weight: 500; }
.tool-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.tool-badge { display: inline-block; background: var(--primary); color: white; padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; margin-left: 8px; vertical-align: middle; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .ent-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-grid { grid-template-columns: repeat(2, 1fr); }
    .partner-grid { grid-template-columns: repeat(4, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-pc { display: none; }
    .hamburger { display: flex; }
    .nav-mobile { display: block; }
    
    .search-container { margin-top: 72px; }
    
    .hero-title { font-size: 2.4rem; }
    .hero-subtitle { font-size: 1.1rem; }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid-3 { grid-template-columns: 1fr; }
    .ent-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-grid { grid-template-columns: repeat(2, 1fr); }
    .community-grid { grid-template-columns: 1fr; }
    .expert-grid { grid-template-columns: repeat(2, 1fr); }
    .partner-grid { grid-template-columns: repeat(2, 1fr); }
    .howto-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .live-grid { grid-template-columns: repeat(2, 1fr); }
    .photo-grid { grid-template-columns: repeat(2, 1fr); }
    .topic-grid { grid-template-columns: repeat(2, 1fr); }
    .community-entries { grid-template-columns: 1fr; }
    
    .section-title { font-size: 1.8rem; }
    .page-hero h1 { font-size: 1.9rem; }
    .section-padding { padding: 55px 0; }
    
    .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.9rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .ent-grid { grid-template-columns: 1fr; }
    .expert-grid { grid-template-columns: 1fr; }
    .live-grid { grid-template-columns: 1fr; }
    .photo-grid { grid-template-columns: 1fr; }
    .topic-grid { grid-template-columns: 1fr; }
    .hero-btns { flex-direction: column; }
    .howto-faq ul { grid-template-columns: 1fr; }
}