/**
 * 抖阴 - 植物视频社区主样式
 * 域名: jspeqak.cn | 原创绿色植物主题
 */

/* ===== CSS变量 ===== */
:root {
    --primary: #AD1457;
    --primary-light: #EC407A;
    --primary-dark: #880E4F;
    --secondary: #EC407A;
    --accent: #FFC107;
    --accent2: #FF7043;
    --bg-dark: #1A0A12;
    --bg-2: #250F1A;
    --bg-3: #250F1A;
    --card-bg: #1E1118;
    --border: rgba(76,175,80,0.15);
    --border-light: rgba(76,175,80,0.08);
    --text-main: #E8F5E9;
    --text-muted: #81A882;
    --text-dim: #4A6B4A;
    --gradient-main: linear-gradient(135deg, #880E4F 0%, #EC407A 100%);
    --gradient-accent: linear-gradient(135deg, #FF7043 0%, #FFC107 100%);
    --gradient-hero: linear-gradient(135deg, #1A0A12 0%, #880E4F 50%, #1A0A12 100%);
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 8px 32px rgba(0,0,0,0.5);
    --shadow-card: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-green: 0 8px 24px rgba(46,125,50,0.3);
    --transition: all 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ===== 重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    background:var(--bg-dark);
    color:var(--text-main);
    line-height:1.65;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}
a{color:var(--primary-light);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--secondary);opacity:1}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ===== 容器 ===== */
.container{max-width:1280px;margin:0 auto;padding:0 20px}

/* ===== 顶部公告 ===== */
.top-bar{
    background:var(--gradient-main);
    color:#fff;
    text-align:center;
    padding:8px 20px;
    font-size:13px;
    display:flex;align-items:center;justify-content:center;gap:12px;
}
.top-bar a{color:#fff;background:rgba(255,255,255,0.2);padding:2px 12px;border-radius:20px;font-size:12px;font-weight:600}
.top-bar a:hover{background:rgba(255,255,255,0.35);opacity:1}

/* ===== 导航 ===== */
.navbar{
    position:sticky;top:0;z-index:1000;
    background:rgba(10,26,10,0.96);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    transition:box-shadow 0.3s;
}
.navbar.scrolled{box-shadow:0 4px 20px rgba(0,0,0,0.5)}
.navbar-inner{
    display:flex;align-items:center;gap:14px;
    height:64px;max-width:1280px;margin:0 auto;padding:0 20px;
}
.navbar-brand{display:flex;align-items:center;gap:8px;flex-shrink:0}
.navbar-brand .favicon{width:32px;height:32px;border-radius:6px}
.navbar-brand .logo-img{height:36px;width:auto}
.navbar-nav{display:flex;align-items:center;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.navbar-nav::-webkit-scrollbar{display:none}
.nav-item a{
    display:block;padding:6px 11px;
    color:var(--text-muted);font-size:14px;font-weight:500;
    border-radius:8px;white-space:nowrap;transition:var(--transition);
}
.nav-item a:hover,.nav-item a.active{color:var(--secondary);background:rgba(76,175,80,0.1);opacity:1}

/* ===== 搜索框 ===== */
.search-wrap{
    display:flex;align-items:center;
    background:rgba(76,175,80,0.07);
    border:1px solid var(--border);
    border-radius:24px;overflow:hidden;
    transition:var(--transition);flex-shrink:0;
}
.search-wrap:focus-within{border-color:rgba(76,175,80,0.4);background:rgba(76,175,80,0.12)}
.search-input{
    background:none;border:none;outline:none;
    color:var(--text-main);font-size:13px;
    padding:8px 14px;width:180px;
}
.search-input::placeholder{color:var(--text-muted)}
.search-btn{
    padding:8px 14px;color:var(--text-muted);
    display:flex;align-items:center;transition:var(--transition);
}
.search-btn:hover{color:var(--primary-light)}
.search-btn svg{width:16px;height:16px;fill:currentColor}

/* 搜索提示 */
.search-tips{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--bg-3);border:1px solid var(--border);
    border-radius:var(--radius-sm);margin-top:4px;
    padding:8px 0;z-index:200;box-shadow:var(--shadow);
}
.search-tips.show{display:block}
.search-tip-item{
    padding:8px 16px;font-size:13px;color:var(--text-muted);
    cursor:pointer;transition:var(--transition);
}
.search-tip-item:hover{background:rgba(76,175,80,0.1);color:var(--text-main)}
.search-container{position:relative}

.navbar-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-login{
    padding:7px 16px;color:var(--text-main);font-size:13px;font-weight:600;
    border-radius:20px;border:1px solid var(--border);
    background:rgba(76,175,80,0.05);transition:var(--transition);
}
.btn-login:hover{border-color:rgba(76,175,80,0.4);color:var(--primary-light)}
.btn-join{
    padding:7px 18px;background:var(--gradient-main);
    color:#fff;font-size:13px;font-weight:700;
    border-radius:20px;transition:var(--transition);
}
.btn-join:hover{opacity:0.9;transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.hamburger span{display:block;width:22px;height:2px;background:var(--text-main);border-radius:2px;transition:var(--transition)}

/* ===== 搜索栏（导航下方） ===== */
.nav-search-bar{
    background:var(--bg-2);
    border-bottom:1px solid var(--border-light);
    padding:10px 20px;
}
.nav-search-inner{
    max-width:1280px;margin:0 auto;
    display:flex;align-items:center;gap:12px;
}
.nav-search-full{
    flex:1;display:flex;align-items:center;
    background:rgba(76,175,80,0.07);
    border:1px solid var(--border);border-radius:28px;
    overflow:hidden;transition:var(--transition);
    position:relative;
}
.nav-search-full:focus-within{border-color:rgba(76,175,80,0.5);background:rgba(76,175,80,0.12)}
.nav-search-full input{
    flex:1;background:none;border:none;outline:none;
    color:var(--text-main);font-size:14px;padding:10px 18px;
}
.nav-search-full input::placeholder{color:var(--text-muted)}
.nav-search-full button{
    padding:10px 20px;background:var(--gradient-main);
    color:#fff;font-size:14px;font-weight:600;
    border-radius:0 28px 28px 0;transition:var(--transition);
}
.nav-search-full button:hover{opacity:0.9}
.search-hot-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.search-hot-tags .label{font-size:12px;color:var(--text-dim);white-space:nowrap}
.hot-tag{
    padding:3px 12px;background:rgba(76,175,80,0.08);
    border:1px solid var(--border);color:var(--text-muted);
    font-size:12px;border-radius:20px;cursor:pointer;
    transition:var(--transition);white-space:nowrap;
}
.hot-tag:hover{background:rgba(76,175,80,0.18);color:var(--primary-light);border-color:rgba(76,175,80,0.3)}

/* ===== Hero Banner ===== */
.hero{
    position:relative;min-height:580px;
    display:flex;align-items:center;overflow:hidden;
}
.hero-bg-img{
    position:absolute;inset:0;
    background-size:cover;background-position:center;background-repeat:no-repeat;
}
.hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(90deg, rgba(10,26,10,0.92) 0%, rgba(10,26,10,0.65) 50%, rgba(10,26,10,0.3) 100%);
}
.hero-overlay-bottom{
    position:absolute;bottom:0;left:0;right:0;height:120px;
    background:linear-gradient(180deg,transparent,var(--bg-dark));
}
.hero .container{position:relative;z-index:1}
.hero-content{max-width:640px}
.hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:rgba(46,125,50,0.2);border:1px solid rgba(76,175,80,0.3);
    color:var(--secondary);padding:6px 16px;border-radius:20px;
    font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
    font-size:clamp(30px,4.5vw,52px);font-weight:900;
    color:#fff;margin-bottom:16px;letter-spacing:-0.5px;line-height:1.2;
}
.hero h1 .highlight{
    background:var(--gradient-main);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-desc{
    font-size:16px;color:rgba(232,245,233,0.8);
    margin-bottom:28px;line-height:1.75;max-width:520px;
}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.btn-primary{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 28px;background:var(--gradient-main);
    color:#fff;font-size:15px;font-weight:700;
    border-radius:30px;transition:var(--transition);
    border:none;cursor:pointer;text-decoration:none;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-green);opacity:1;color:#fff}
.btn-outline{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 26px;border:1.5px solid rgba(76,175,80,0.4);
    color:var(--text-main);font-size:15px;font-weight:600;
    border-radius:30px;transition:var(--transition);text-decoration:none;
}
.btn-outline:hover{border-color:var(--primary-light);color:var(--secondary);opacity:1}
.hero-stats{
    display:flex;gap:28px;flex-wrap:wrap;
}
.hero-stat{display:flex;flex-direction:column}
.hero-stat .num{
    font-size:22px;font-weight:900;
    background:var(--gradient-main);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-stat .lbl{font-size:12px;color:var(--text-muted);margin-top:2px}

/* ===== Section ===== */
.section{padding:60px 0}
.section-sm{padding:36px 0}
.section-header{
    display:flex;align-items:center;justify-content:space-between;
    margin-bottom:28px;gap:16px;
}
.section-title{display:flex;align-items:center;gap:10px}
.title-bar{width:4px;height:24px;background:var(--gradient-main);border-radius:2px;flex-shrink:0}
.title-icon{font-size:22px}
.section-title h2{font-size:22px;font-weight:800;color:#fff}
.view-all{
    color:var(--primary-light);font-size:13px;font-weight:600;
    white-space:nowrap;padding:6px 14px;
    border:1px solid rgba(76,175,80,0.3);border-radius:20px;
    transition:var(--transition);
}
.view-all:hover{background:rgba(76,175,80,0.1);opacity:1}

/* ===== 分类标签 ===== */
.category-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.cat-tab{
    padding:7px 18px;background:rgba(76,175,80,0.06);
    border:1px solid var(--border);color:var(--text-muted);
    font-size:13px;border-radius:20px;cursor:pointer;
    transition:var(--transition);user-select:none;
}
.cat-tab:hover{color:var(--primary-light);border-color:rgba(76,175,80,0.3)}
.cat-tab.active{background:var(--gradient-main);border-color:transparent;color:#fff;font-weight:600}

/* ===== 视频网格 ===== */
.video-grid{display:grid;gap:20px}
.vg-4{grid-template-columns:repeat(4,1fr)}
.vg-3{grid-template-columns:repeat(3,1fr)}
.vg-2{grid-template-columns:repeat(2,1fr)}

/* ===== 视频卡片 ===== */
.video-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);overflow:hidden;
    transition:var(--transition);cursor:pointer;
}
.video-card:hover{
    transform:translateY(-5px);box-shadow:var(--shadow);
    border-color:rgba(76,175,80,0.3);
}
.video-thumb{
    position:relative;aspect-ratio:16/9;overflow:hidden;
    background:var(--bg-3);
}
.video-thumb img{
    width:100%;height:100%;object-fit:cover;
    transition:transform 0.4s ease;
}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.video-play-btn{
    position:absolute;inset:0;
    display:flex;align-items:center;justify-content:center;
    background:rgba(0,0,0,0);opacity:0;transition:all 0.25s;
}
.video-card:hover .video-play-btn{opacity:1;background:rgba(0,0,0,0.38)}
.play-icon{
    width:54px;height:54px;background:var(--gradient-main);
    border-radius:50%;display:flex;align-items:center;justify-content:center;
    box-shadow:0 4px 20px rgba(46,125,50,0.6);transition:transform 0.2s;
}
.play-icon:hover{transform:scale(1.12)}
.play-icon svg{width:20px;height:20px;fill:#fff;margin-left:3px}
.video-duration{
    position:absolute;bottom:8px;right:8px;
    background:rgba(0,0,0,0.78);color:#fff;
    font-size:11px;padding:2px 8px;border-radius:4px;font-weight:600;
}
.video-badge{
    position:absolute;top:8px;left:8px;
    font-size:10px;font-weight:700;padding:2px 8px;
    border-radius:4px;letter-spacing:0.5px;
}
.badge-hot{background:var(--accent2);color:#fff}
.badge-new{background:#06D6A0;color:#fff}
.badge-rare{background:var(--accent);color:#1A1A00}
.badge-award{background:#9C27B0;color:#fff}
.video-info{padding:14px}
.video-title{
    font-size:13px;font-weight:600;color:var(--text-main);
    margin-bottom:8px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    line-height:1.5;
}
.video-meta{display:flex;gap:12px;font-size:11px;color:var(--text-muted);margin-bottom:6px}
.video-tags{display:flex;gap:6px;flex-wrap:wrap}
.vtag{
    padding:2px 8px;background:rgba(76,175,80,0.08);
    border:1px solid var(--border);color:var(--text-muted);
    font-size:10px;border-radius:20px;
}

/* ===== 统计数据栏 ===== */
.stats-bar{
    background:var(--bg-2);border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
}
.stats-inner{
    display:flex;justify-content:center;
    max-width:1280px;margin:0 auto;
}
.stat-item{
    display:flex;flex-direction:column;align-items:center;
    padding:18px 52px;border-right:1px solid var(--border);
}
.stat-item:last-child{border-right:none}
.stat-item .num{
    font-size:26px;font-weight:900;
    background:var(--gradient-main);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.stat-item .lbl{font-size:12px;color:var(--text-muted);margin-top:3px}

/* ===== AI卡片 ===== */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);padding:28px;transition:var(--transition);
}
.ai-card:hover{border-color:rgba(76,175,80,0.3);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.ai-icon{font-size:38px;margin-bottom:14px}
.ai-card h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px}
.ai-card p{font-size:13px;color:var(--text-muted);line-height:1.7}

/* ===== 功能卡片 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);padding:28px;transition:var(--transition);
}
.feature-card:hover{border-color:rgba(76,175,80,0.3);transform:translateY(-3px)}
.feature-icon{font-size:32px;margin-bottom:12px}
.feature-card h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.feature-card p{font-size:13px;color:var(--text-muted);line-height:1.7}

/* ===== 步骤 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);padding:24px;text-align:center;transition:var(--transition);
}
.step-card:hover{border-color:rgba(76,175,80,0.3);transform:translateY(-3px)}
.step-num{
    width:44px;height:44px;background:var(--gradient-main);
    border-radius:50%;display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:900;color:#fff;margin:0 auto 14px;
}
.step-card h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:8px}
.step-card p{font-size:12px;color:var(--text-muted);line-height:1.6}

/* ===== 专家卡片 ===== */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.expert-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);overflow:hidden;transition:var(--transition);
}
.expert-card:hover{border-color:rgba(76,175,80,0.3);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.expert-photo{width:100%;aspect-ratio:1/1;object-fit:cover}
.expert-info{padding:18px}
.expert-name{font-size:16px;font-weight:800;color:#fff;margin-bottom:4px}
.expert-role{font-size:12px;color:var(--primary-light);font-weight:600;margin-bottom:10px}
.expert-desc{font-size:12px;color:var(--text-muted);line-height:1.6;margin-bottom:12px}
.expert-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.expert-tag{
    padding:3px 10px;background:rgba(46,125,50,0.12);
    border:1px solid rgba(76,175,80,0.2);color:var(--primary-light);
    font-size:11px;border-radius:20px;
}
.expert-btns{display:flex;gap:8px}
.btn-sm{
    padding:6px 14px;font-size:12px;font-weight:600;
    border-radius:20px;transition:var(--transition);
    text-decoration:none;display:inline-block;
}
.btn-sm-g{background:var(--gradient-main);color:#fff}
.btn-sm-o{border:1px solid var(--border);color:var(--text-muted)}
.btn-sm-o:hover{border-color:rgba(76,175,80,0.3);color:var(--primary-light);opacity:1}

/* ===== 合作伙伴 ===== */
.partners-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.partner-item{
    padding:14px 28px;background:var(--card-bg);
    border:1px solid var(--border-light);border-radius:var(--radius-sm);
    font-size:14px;font-weight:600;color:var(--text-muted);transition:var(--transition);
}
.partner-item:hover{border-color:rgba(76,175,80,0.3);color:var(--primary-light)}

/* ===== 评价卡片 ===== */
.reviews-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.review-card{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);padding:20px;transition:var(--transition);
}
.review-card:hover{border-color:rgba(76,175,80,0.2)}
.review-header{display:flex;gap:12px;align-items:center;margin-bottom:10px}
.review-avatar{
    width:40px;height:40px;border-radius:50%;
    background:var(--gradient-main);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;color:#fff;flex-shrink:0;
}
.review-name{font-size:13px;font-weight:600;color:var(--text-main)}
.review-date{font-size:11px;color:var(--text-muted)}
.review-stars{color:var(--accent);font-size:13px;margin-bottom:8px}
.review-text{font-size:12px;color:var(--text-muted);line-height:1.65}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);overflow:hidden;transition:var(--transition);
}
.faq-item.open{border-color:rgba(76,175,80,0.3)}
.faq-question{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 20px;cursor:pointer;
    font-size:14px;font-weight:600;color:var(--text-main);gap:12px;
}
.faq-icon{
    width:24px;height:24px;border-radius:50%;
    background:rgba(76,175,80,0.15);color:var(--primary-light);
    display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:300;flex-shrink:0;transition:transform 0.3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease}
.faq-item.open .faq-answer{max-height:300px}
.faq-answer-inner{padding:0 20px 18px;font-size:13px;color:var(--text-muted);line-height:1.75}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h3{font-size:20px;font-weight:800;color:#fff;margin-bottom:24px}
.contact-item{display:flex;gap:14px;margin-bottom:20px}
.contact-icon{font-size:20px;flex-shrink:0;margin-top:2px}
.contact-label{font-size:12px;color:var(--text-muted);margin-bottom:4px}
.contact-value{font-size:14px;color:var(--text-main);font-weight:500}
.qrcode-row{display:flex;gap:24px;flex-wrap:wrap}
.qrcode-item{text-align:center}
.qrcode-item img{border-radius:10px;border:2px solid var(--border)}
.qrcode-item p{font-size:12px;color:var(--text-muted);margin-top:8px}

/* ===== 分页 ===== */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:36px}
.page-btn{
    width:38px;height:38px;display:flex;align-items:center;justify-content:center;
    background:var(--card-bg);border:1px solid var(--border-light);
    color:var(--text-muted);font-size:14px;border-radius:8px;
    transition:var(--transition);text-decoration:none;
}
.page-btn:hover{border-color:rgba(76,175,80,0.4);color:var(--primary-light);opacity:1}
.page-btn.active{background:var(--gradient-main);border-color:transparent;color:#fff;font-weight:700}

/* ===== 面包屑 ===== */
.breadcrumb{
    display:flex;align-items:center;gap:8px;
    max-width:1280px;margin:0 auto;padding:10px 20px;
    font-size:13px;color:var(--text-muted);
}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary-light);opacity:1}
.breadcrumb .sep{color:var(--border)}
.breadcrumb .current{color:var(--text-main)}

/* ===== 页面Hero ===== */
.page-hero{
    background:linear-gradient(135deg,var(--bg-3) 0%,var(--bg-2) 100%);
    border-bottom:1px solid var(--border-light);
    padding:40px 20px;text-align:center;
}
.page-hero h1{font-size:28px;font-weight:900;color:#fff;margin-bottom:8px}
.page-hero p{font-size:14px;color:var(--text-muted)}

/* ===== 侧边栏 ===== */
.sidebar-layout{display:grid;grid-template-columns:1fr 280px;gap:28px;align-items:start}
.sidebar-widget{
    background:var(--card-bg);border:1px solid var(--border-light);
    border-radius:var(--radius);padding:20px;margin-bottom:20px;
}
.widget-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{display:flex;align-items:center;gap:10px}
.rank-num{
    width:22px;height:22px;border-radius:4px;
    background:rgba(76,175,80,0.15);color:var(--primary-light);
    font-size:12px;font-weight:700;
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.rank-item:nth-child(1) .rank-num{background:var(--primary);color:#fff}
.rank-item:nth-child(2) .rank-num{background:rgba(46,125,50,0.7);color:#fff}
.rank-item:nth-child(3) .rank-num{background:rgba(46,125,50,0.4);color:#fff}
.rank-title{
    font-size:12px;color:var(--text-muted);flex:1;
    display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-views{font-size:11px;color:var(--text-muted);white-space:nowrap}

/* ===== 分享栏 ===== */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.share-label{font-size:13px;color:var(--text-muted)}
.share-btn{
    padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;
    transition:var(--transition);border:1px solid var(--border);
    color:var(--text-muted);text-decoration:none;
}
.share-wechat:hover{background:#07C160;border-color:#07C160;color:#fff;opacity:1}
.share-weibo:hover{background:#E6162D;border-color:#E6162D;color:#fff;opacity:1}
.share-douyin:hover{background:#000;border-color:#333;color:#fff;opacity:1}
.share-bilibili:hover{background:#00A1D6;border-color:#00A1D6;color:#fff;opacity:1}

/* ===== 模态框 ===== */
.modal-overlay{
    display:none;position:fixed;inset:0;
    background:rgba(0,0,0,0.88);z-index:9000;
    align-items:center;justify-content:center;
    backdrop-filter:blur(8px);
}
.modal-overlay.open{display:flex}
.modal-content{
    background:var(--bg-3);border:1px solid var(--border);
    border-radius:20px;padding:28px;
    width:90%;max-width:700px;position:relative;
}
.modal-close{
    position:absolute;top:16px;right:16px;
    font-size:24px;color:var(--text-muted);
    background:none;border:none;cursor:pointer;line-height:1;
}
.modal-video{
    background:var(--bg-dark);border-radius:12px;
    aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;
    color:var(--text-muted);font-size:14px;
}
.modal-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}

/* ===== 底部 ===== */
footer{background:var(--bg-3);border-top:1px solid var(--border);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .brand-name{
    font-size:24px;font-weight:900;
    background:var(--gradient-main);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
    margin-bottom:14px;
}
.footer-brand p{font-size:13px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.social-icon{
    width:36px;height:36px;background:rgba(76,175,80,0.07);
    border:1px solid var(--border-light);border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:700;color:var(--text-muted);transition:var(--transition);
}
.social-icon:hover{background:rgba(76,175,80,0.15);border-color:rgba(76,175,80,0.3);color:var(--primary-light);opacity:1}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:var(--text-muted);transition:var(--transition)}
.footer-links a:hover{color:var(--primary-light);opacity:1;padding-left:4px}
.divider{border:none;border-top:1px solid var(--border-light);margin:24px 0}
.footer-bottom{
    padding:20px 0;display:flex;flex-direction:column;
    align-items:center;gap:8px;
    font-size:12px;color:var(--text-muted);text-align:center;
}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--primary-light);opacity:1}
.update-time{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:12px}

/* ===== 通知栏 ===== */
.notice-bar{
    display:flex;align-items:center;gap:12px;
    background:rgba(46,125,50,0.08);
    border:1px solid rgba(76,175,80,0.2);
    border-radius:8px;padding:10px 16px;margin-bottom:24px;
    font-size:13px;color:var(--text-muted);
}
.notice-tag{
    background:var(--primary);color:#fff;
    font-size:11px;font-weight:700;padding:2px 8px;border-radius:4px;flex-shrink:0;
}

/* ===== 动画 ===== */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity 0.5s ease,transform 0.5s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.float-anim{animation:float 4s ease-in-out infinite}

/* ===== 响应式 ===== */
@media(max-width:1200px){
    .vg-4{grid-template-columns:repeat(3,1fr)}
    .expert-grid{grid-template-columns:repeat(3,1fr)}
    .reviews-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:992px){
    .vg-4{grid-template-columns:repeat(2,1fr)}
    .vg-3{grid-template-columns:repeat(2,1fr)}
    .ai-grid{grid-template-columns:repeat(2,1fr)}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .steps-grid{grid-template-columns:repeat(2,1fr)}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .reviews-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .contact-grid{grid-template-columns:1fr}
    .sidebar-layout{grid-template-columns:1fr}
    .navbar-nav{display:none}
    .hamburger{display:flex}
    .stat-item{padding:14px 24px}
}
@media(max-width:768px){
    .hero{min-height:420px;padding:40px 0 60px}
    .hero h1{font-size:26px}
    .vg-4,.vg-3{grid-template-columns:repeat(2,1fr)}
    .ai-grid,.feature-grid{grid-template-columns:1fr}
    .steps-grid{grid-template-columns:1fr}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .reviews-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .stat-item{padding:12px 16px}
    .stat-item .num{font-size:20px}
    .section{padding:40px 0}
    .btn-login{display:none}
    .nav-search-bar .search-hot-tags{display:none}
}
@media(max-width:480px){
    .vg-4,.vg-3{grid-template-columns:1fr}
    .expert-grid{grid-template-columns:1fr}
    .hero-btns{flex-direction:column}
    .stats-inner{flex-wrap:wrap}
    .stat-item{flex:1 1 50%;border-right:none;border-bottom:1px solid var(--border)}
}

/* ===== 面包屑 ===== */
.breadcrumb{max-width:1200px;margin:0 auto;padding:10px 20px;font-size:12px;color:var(--text-dim)}
.breadcrumb a{color:var(--text-muted);text-decoration:none}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb .sep{margin:0 6px;color:var(--text-dim)}
.breadcrumb .current{color:var(--primary-light)}
/* ===== 页面Hero ===== */
.page-hero{padding:60px 20px;text-align:center;background:linear-gradient(135deg,var(--bg-dark),var(--bg-3));border-bottom:1px solid var(--border)}
.page-hero h1{font-size:28px;color:#fff;margin-bottom:12px}
.page-hero p{font-size:14px;color:var(--text-muted)}
/* ===== 侧边栏布局 ===== */
.sidebar-layout{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.sidebar-widget{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.widget-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}
/* ===== 排行榜 ===== */
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-item{display:flex;align-items:center;gap:10px;font-size:12px}
.rank-num{width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.rank-item:nth-child(1) .rank-num{background:#FFD700}
.rank-item:nth-child(2) .rank-num{background:#C0C0C0}
.rank-item:nth-child(3) .rank-num{background:#CD7F32}
.rank-title{flex:1;color:var(--text-muted);line-height:1.4}
.rank-views{color:var(--text-dim);font-size:11px;white-space:nowrap}
/* ===== 分页 ===== */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:32px}
.page-btn{padding:8px 14px;border-radius:8px;background:var(--card-bg);border:1px solid var(--border);color:var(--text-muted);font-size:13px;cursor:pointer;text-decoration:none;transition:var(--transition)}
.page-btn:hover,.page-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}
/* ===== 联系区域 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info h3{font-size:18px;color:#fff;margin-bottom:20px}
.contact-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.contact-icon{font-size:20px;flex-shrink:0;margin-top:2px}
.contact-label{font-size:11px;color:var(--text-dim);margin-bottom:3px}
.contact-value{font-size:13px;color:var(--text-muted)}
.qrcode-row{display:flex;gap:24px}
.qrcode-item{text-align:center}
.qrcode-item img{border-radius:8px;border:1px solid var(--border);background:#fff;padding:4px}
.qrcode-item p{font-size:11px;color:var(--text-dim);margin-top:8px}
/* ===== 合作伙伴 ===== */
.partners-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.partner-item{padding:10px 20px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;font-size:12px;color:var(--text-muted)}
/* ===== 搜索提示 ===== */
.search-tips{position:absolute;top:100%;left:0;right:0;background:var(--card-bg);border:1px solid var(--border);border-radius:0 0 10px 10px;z-index:200;display:none;box-shadow:0 8px 24px rgba(0,0,0,0.4)}
.search-tips.show{display:block}
.search-tip-item{padding:8px 16px;font-size:13px;color:var(--text-muted);cursor:pointer;transition:var(--transition)}
.search-tip-item:hover{background:rgba(76,175,80,0.08);color:var(--primary-light)}
/* ===== 分享栏 ===== */
.share-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.share-label{font-size:13px;color:var(--text-muted)}
.share-btn{padding:6px 16px;border-radius:20px;font-size:12px;text-decoration:none;border:1px solid var(--border);color:var(--text-muted);transition:var(--transition)}
.share-btn:hover{border-color:var(--primary-light);color:var(--primary-light)}
/* ===== 模态框 ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.85);z-index:9999;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.open{display:flex}
.modal-content{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;width:100%;max-width:720px;overflow:hidden;position:relative}
.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;color:var(--text-muted);font-size:24px;cursor:pointer;z-index:1}
.modal-title{padding:20px 24px 0;font-size:16px;color:#fff;font-weight:600}
.modal-video{padding:16px 24px 24px}
/* ===== 响应式补充 ===== */
@media(max-width:768px){
    .sidebar-layout{grid-template-columns:1fr}
    .contact-grid{grid-template-columns:1fr}
    .qrcode-row{justify-content:center}
}