/* ============================================
   海角视频 - 原创动漫影视传媒社区
   官网：bdhuyj.cn
   原创主题：星耀紫红配色方案
   ============================================ */

/* CSS变量 */
:root {
    --primary: #e8234a;
    --primary-dark: #c01a38;
    --secondary: #5a2d8c;
    --secondary-dark: #3d1e63;
    --accent: #ff6b9d;
    --gold: #f5a623;
    --text-dark: #1a1a2e;
    --text-body: #333344;
    --text-muted: #6b6b8a;
    --bg-page: #f4f4f8;
    --bg-white: #ffffff;
    --bg-dark: #0f0f1a;
    --border: #e0e0ee;
    --shadow-sm: 0 2px 8px rgba(90,45,140,0.08);
    --shadow-md: 0 4px 20px rgba(90,45,140,0.12);
    --shadow-lg: 0 8px 40px rgba(90,45,140,0.18);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

/* 重置 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    color: var(--text-body);
    background: var(--bg-page);
    line-height: 1.7;
    font-size: 15px;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* 布局 */
.container { width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section-alt { background: var(--bg-page); }
.section-dark { background: var(--bg-dark); color: #eee; }

/* ============ HEADER ============ */
header {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 20px;
}
.logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.logo-wrap img {
    height: 46px;
    width: auto;
}
.logo-text {
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}
.logo-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 搜索框 */
.search-wrap {
    display: flex;
    align-items: center;
    background: var(--bg-page);
    border: 2px solid var(--border);
    border-radius: 30px;
    padding: 6px 16px;
    width: 320px;
    transition: var(--transition);
}
.search-wrap:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232,35,74,0.1);
}
.search-wrap input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    color: var(--text-dark);
    padding: 4px 8px;
}
.search-wrap button {
    background: var(--primary);
    border: none;
    color: white;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}
.search-wrap button:hover { background: var(--primary-dark); }

/* 导航 */
nav {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
}
.nav-list {
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-list li a {
    display: block;
    padding: 14px 28px;
    color: rgba(255,255,255,0.9);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    position: relative;
    transition: var(--transition);
}
.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    transition: var(--transition);
}
.nav-list li a:hover,
.nav-list li a.active {
    color: white;
    background: rgba(255,255,255,0.1);
}
.nav-list li a:hover::after,
.nav-list li a.active::after { width: 60%; }

/* ============ HERO BANNER ============ */
.hero {
    position: relative;
    overflow: hidden;
    height: 480px;
}
.hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15,15,26,0.85) 40%, transparent);
    display: flex;
    align-items: center;
}
.hero-content {
    max-width: 560px;
    padding: 0 40px;
    color: white;
}
.hero-tag {
    display: inline-block;
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.hero-content h2 {
    font-size: 40px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}
.hero-content p {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 28px;
    line-height: 1.7;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline {
    background: transparent;
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    border: 2px solid rgba(255,255,255,0.6);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: white; }

/* ============ SECTION TITLE ============ */
.sec-title {
    text-align: center;
    margin-bottom: 40px;
}
.sec-title h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text-dark);
    position: relative;
    display: inline-block;
    padding-bottom: 14px;
}
.sec-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 2px;
}
.sec-title p {
    color: var(--text-muted);
    margin-top: 12px;
    font-size: 15px;
}
.sec-title-light h2 { color: white; }
.sec-title-light p { color: rgba(255,255,255,0.7); }

/* ============ VIDEO / ANIME CARDS ============ */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.video-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}
.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.video-thumb-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: #111;
}
.video-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.video-card:hover .video-thumb-wrap img { transform: scale(1.06); }
.play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-icon {
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.8);
    transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 20px;
    border-color: transparent transparent transparent var(--primary);
    margin-left: 4px;
}
.video-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
}
.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
}
.video-info { padding: 14px; }
.video-info h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}
.video-stats { display: flex; gap: 10px; }
.video-stats span { display: flex; align-items: center; gap: 3px; }

/* ============ CATEGORY TABS ============ */
.cat-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 30px;
    justify-content: center;
}
.cat-tab {
    padding: 8px 20px;
    border-radius: 20px;
    border: 2px solid var(--border);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-white);
}
.cat-tab:hover,
.cat-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ============ EXPERTS ============ */
.expert-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}
.expert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.expert-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 16px;
    border: 3px solid var(--primary);
    padding: 2px;
    background: white;
}
.expert-name {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.expert-title {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 10px;
    background: rgba(232,35,74,0.08);
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
}
.expert-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}
.btn-sm-primary { background: var(--primary); color: white; }
.btn-sm-primary:hover { background: var(--primary-dark); }
.btn-sm-outline { background: transparent; color: var(--secondary); border: 1px solid var(--secondary); }
.btn-sm-outline:hover { background: var(--secondary); color: white; }

/* ============ STATS BAR ============ */
.stats-bar {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
    padding: 40px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}
.stat-item { color: white; }
.stat-num {
    font-size: 36px;
    font-weight: 900;
    color: var(--accent);
    display: block;
    line-height: 1;
    margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,0.8); }

/* ============ AI FEATURES ============ */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.ai-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.ai-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
}
.ai-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.ai-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(232,35,74,0.1), rgba(90,45,140,0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 28px;
}
.ai-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
}
.ai-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ============ COMMUNITY FEATURES ============ */
.community-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.comm-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 24px 18px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}
.comm-card:hover {
    border-bottom-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.comm-icon { font-size: 36px; margin-bottom: 14px; }
.comm-card h4 { font-size: 16px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.comm-card p { font-size: 13px; color: var(--text-muted); }

/* ============ FAQ ============ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-q {
    padding: 18px 20px;
    font-weight: 700;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    transition: var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-q::after {
    content: '+';
    font-size: 22px;
    color: var(--primary);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item.open .faq-q::after { content: '−'; }
.faq-a {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
}
.faq-item.open .faq-a {
    max-height: 300px;
    padding: 0 20px 18px;
}

/* ============ REVIEWS ============ */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-md); }
.review-stars { color: var(--gold); font-size: 16px; margin-bottom: 12px; }
.review-text { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.review-name { font-weight: 700; font-size: 14px; color: var(--text-dark); }
.review-date { font-size: 12px; color: var(--text-muted); }

/* ============ PARTNERS ============ */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
}
.partner-item {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 28px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-muted);
    transition: var(--transition);
}
.partner-item:hover { color: var(--primary); border-color: var(--primary); transform: scale(1.04); }

/* ============ HOW-TO JOIN ============ */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
}
.howto-steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    z-index: 0;
}
.step-item {
    text-align: center;
    position: relative;
    z-index: 1;
}
.step-num {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 900;
    margin: 0 auto 16px;
    box-shadow: 0 4px 15px rgba(232,35,74,0.3);
}
.step-item h4 { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.step-item p { font-size: 13px; color: var(--text-muted); }

/* ============ CONTACT ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h3 { font-size: 22px; font-weight: 800; color: var(--text-dark); margin-bottom: 20px; }
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
    padding: 14px;
    background: var(--bg-page);
    border-radius: var(--radius-sm);
}
.contact-icon { font-size: 22px; flex-shrink: 0; }
.contact-label { font-size: 12px; color: var(--text-muted); margin-bottom: 3px; }
.contact-value { font-size: 15px; font-weight: 600; color: var(--text-dark); }
.qr-section { display: flex; gap: 24px; justify-content: center; }
.qr-box { text-align: center; }
.qr-box img { width: 130px; height: 130px; border-radius: var(--radius-sm); border: 2px solid var(--border); }
.qr-box p { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ============ SHARE BAR ============ */
.share-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px 0;
}
.share-label { font-size: 14px; color: var(--text-muted); }
.share-btn {
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    color: white;
}
.share-wechat { background: #07c160; }
.share-weibo { background: #e6162d; }
.share-douyin { background: #010101; }
.share-bilibili { background: #00a1d6; }
.share-btn:hover { opacity: 0.85; transform: scale(1.05); }

/* ============ FOOTER ============ */
footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.75);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo-text { font-size: 24px; color: white; -webkit-text-fill-color: white; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin: 14px 0; color: rgba(255,255,255,0.6); }
.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: white;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255,255,255,0.1);
}
.footer-col ul li {
    margin-bottom: 10px;
    font-size: 14px;
}
.footer-col ul li a { color: rgba(255,255,255,0.65); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-qr { display: flex; gap: 16px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 90px; height: 90px; border-radius: 6px; }
.footer-qr-item p { font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 6px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: rgba(255,255,255,0.45);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: rgba(255,255,255,0.45); }
.footer-links a:hover { color: var(--accent); }

/* ============ BREADCRUMB ============ */
.breadcrumb {
    padding: 14px 0;
    font-size: 13px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg-white);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* 新式面包屑导航 - 符合schema.org结构化数据 */
.breadcrumb-nav {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}
.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
}
.breadcrumb-list a { color: var(--primary); }
.breadcrumb-list a:hover { color: var(--accent); }
.bc-sep { color: var(--text-muted); }

/* 娱乐专区横幅覆盖层 */
.entertainment-banner-wrap {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 30px;
}
.entertainment-banner-wrap img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}
.entertainment-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15,15,26,0.75) 40%, transparent);
    display: flex;
    align-items: center;
    padding: 0 40px;
    color: white;
}

/* ============ PAGE HEADER ============ */
.page-hero {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
    padding: 50px 0;
    text-align: center;
    color: white;
}
.page-hero h1 { font-size: 34px; font-weight: 900; margin-bottom: 10px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.8); }

/* ============ TAGS ============ */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag {
    background: rgba(90,45,140,0.08);
    color: var(--secondary);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 600;
}

/* ============ PAGINATION ============ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}
.page-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-white);
    color: var(--text-body);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.page-btn:hover,
.page-btn.active { background: var(--primary); border-color: var(--primary); color: white; }

/* ============ MOBILE RESPONSIVE ============ */
@media (max-width: 1024px) {
    .grid-4, .community-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .howto-steps::before { display: none; }
}
@media (max-width: 768px) {
    .header-inner { flex-direction: column; padding: 12px 0; }
    .search-wrap { width: 100%; }
    .nav-list { flex-wrap: wrap; justify-content: flex-start; }
    .nav-list li a { padding: 10px 16px; font-size: 14px; }
    .hero { height: 300px; }
    .hero-content h2 { font-size: 26px; }
    .grid-4, .grid-3, .community-grid, .ai-grid, .expert-grid, .howto-steps { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .review-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .section { padding: 40px 0; }
}
@media (max-width: 480px) {
    .grid-4, .grid-3, .grid-2, .community-grid, .ai-grid, .expert-grid, .howto-steps { grid-template-columns: 1fr; }
    .hero-content h2 { font-size: 22px; }
    .hero-btns { flex-direction: column; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}