/* =============================================
   里番网 - 里番网视频社区 | ymsri93.cn
   原创深绿森林主题 CSS
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #1a6b3a;
  --primary-dark: #0f4525;
  --primary-light: #2d9e5a;
  --accent: #f0a500;
  --accent-dark: #c87800;
  --bg-dark: #0d1f14;
  --bg-mid: #142a1c;
  --bg-card: #1c3826;
  --bg-card2: #213d2b;
  --text-main: #e8f5ec;
  --text-muted: #8ab89a;
  --text-dim: #5a8068;
  --border: #2a4d38;
  --border-light: #3a6a4e;
  --shadow: 0 4px 24px rgba(0,0,0,0.45);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.3);
  --radius: 12px;
  --radius-sm: 6px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font-main: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}

/* ---- Reset ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);background:var(--bg-dark);color:var(--text-main);line-height:1.7;overflow-x:hidden}
a{color:var(--primary-light);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,textarea,select{font-family:inherit}

/* ---- 容器 ---- */
.container{max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section-sm{padding:48px 0}

/* ---- 标题 ---- */
.section-title{font-size:2rem;font-weight:700;color:var(--text-main);margin-bottom:12px;line-height:1.3}
.section-title span{color:var(--accent)}
.section-subtitle{font-size:1rem;color:var(--text-muted);margin-bottom:40px;max-width:600px}
.section-header{margin-bottom:40px}
.section-header .tag{display:inline-block;background:rgba(240,165,0,0.15);color:var(--accent);font-size:0.78rem;font-weight:600;letter-spacing:0.08em;padding:4px 12px;border-radius:20px;margin-bottom:12px;border:1px solid rgba(240,165,0,0.3)}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:600;transition:all var(--transition);cursor:pointer}
.btn-primary{background:var(--primary);color:#fff;border:2px solid var(--primary)}
.btn-primary:hover{background:var(--primary-light);border-color:var(--primary-light);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(26,107,58,0.4)}
.btn-accent{background:var(--accent);color:#1a1a1a;border:2px solid var(--accent)}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#1a1a1a;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--text-main);border:2px solid var(--border-light)}
.btn-outline:hover{border-color:var(--primary-light);color:var(--primary-light)}
.btn-sm{padding:8px 18px;font-size:0.85rem}

/* ---- 徽章 ---- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:0.72rem;font-weight:700;letter-spacing:0.05em}
.badge-hot{background:rgba(220,50,50,0.2);color:#ff6b6b;border:1px solid rgba(220,50,50,0.3)}
.badge-new{background:rgba(26,107,58,0.25);color:#4ade80;border:1px solid rgba(26,107,58,0.4)}
.badge-rare{background:rgba(138,43,226,0.2);color:#c084fc;border:1px solid rgba(138,43,226,0.3)}
.badge-ai{background:rgba(0,180,216,0.2);color:#67e8f9;border:1px solid rgba(0,180,216,0.3)}

/* ---- 网格 ---- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* ============================================
   HEADER 导航
   ============================================ */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(13,31,20,0.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-img{width:44px;height:44px;object-fit:contain;border-radius:8px}
.logo-text{font-size:1.4rem;font-weight:800;color:var(--text-main);letter-spacing:-0.02em}
.logo-text span{color:var(--accent)}
.main-nav .nav-list{display:flex;align-items:center;gap:4px}
.nav-item a{display:block;padding:8px 14px;border-radius:var(--radius-sm);color:var(--text-muted);font-size:0.9rem;font-weight:500;transition:all var(--transition)}
.nav-item a:hover,.nav-item.active a{color:var(--text-main);background:rgba(45,158,90,0.15)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:var(--radius-sm)}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-main);transition:all var(--transition);border-radius:2px}

/* 搜索框 */
.search-bar-wrap{background:rgba(20,42,28,0.95);border-bottom:1px solid var(--border);padding:10px 0}
.search-bar{position:relative;max-width:600px}
.search-form{display:flex;align-items:center;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-sm);overflow:hidden;transition:border-color var(--transition)}
.search-form:focus-within{border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(45,158,90,0.15)}
.search-input{flex:1;padding:10px 16px;background:transparent;color:var(--text-main);font-size:0.9rem;border:none;outline:none}
.search-input::placeholder{color:var(--text-dim)}
.search-btn{padding:10px 16px;color:var(--text-muted);transition:color var(--transition)}
.search-btn:hover{color:var(--primary-light)}
.search-suggest{position:absolute;top:100%;left:0;right:0;background:var(--bg-card);border:1px solid var(--border-light);border-top:none;border-radius:0 0 var(--radius-sm) var(--radius-sm);display:none;z-index:100;max-height:200px;overflow-y:auto}
.search-suggest.active{display:block}
.suggest-item{padding:10px 16px;color:var(--text-muted);font-size:0.88rem;cursor:pointer;transition:background var(--transition)}
.suggest-item:hover{background:rgba(45,158,90,0.1);color:var(--text-main)}

/* 面包屑 */
.breadcrumb-nav{background:var(--bg-mid);border-bottom:1px solid var(--border);padding:10px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb li{display:flex;align-items:center;gap:8px;font-size:0.85rem;color:var(--text-dim)}
.breadcrumb li:not(:last-child)::after{content:'/';color:var(--text-dim)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary-light)}

/* ============================================
   HERO BANNER
   ============================================ */
.hero{position:relative;min-height:600px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,31,20,0.88) 0%,rgba(13,31,20,0.6) 50%,rgba(13,31,20,0.4) 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:640px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(240,165,0,0.12);border:1px solid rgba(240,165,0,0.3);color:var(--accent);font-size:0.82rem;font-weight:600;padding:6px 14px;border-radius:20px;margin-bottom:20px;letter-spacing:0.06em}
.hero-title{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:16px;color:#fff}
.hero-title .hl{color:var(--accent)}
.hero-desc{font-size:1.05rem;color:rgba(232,245,236,0.85);margin-bottom:32px;line-height:1.8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:40px}
.hero-stat{text-align:center}
.hero-stat .num{font-size:1.8rem;font-weight:800;color:var(--accent);line-height:1}
.hero-stat .label{font-size:0.8rem;color:var(--text-muted);margin-top:4px}

/* ============================================
   视频卡片
   ============================================ */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:all var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--primary-light)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0a1a10}
.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)}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0);transition:background var(--transition)}
.video-card:hover .play-overlay{background:rgba(0,0,0,0.35)}
.play-btn{width:56px;height:56px;background:rgba(240,165,0,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.7);transition:all var(--transition)}
.video-card:hover .play-btn{opacity:1;transform:scale(1)}
.play-btn svg{margin-left:4px}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,0.75);color:#fff;font-size:0.75rem;padding:2px 8px;border-radius:4px}
.video-info{padding:16px}
.video-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.video-cat{font-size:0.75rem;color:var(--primary-light);font-weight:600}
.video-title{font-size:0.95rem;font-weight:600;color:var(--text-main);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-stats{display:flex;gap:14px;font-size:0.78rem;color:var(--text-dim)}
.video-stats span{display:flex;align-items:center;gap:4px}

/* ============================================
   特色模块
   ============================================ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:28px 24px;border:1px solid var(--border);transition:all var(--transition)}
.feature-card:hover{border-color:var(--primary-light);transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.feature-icon{width:52px;height:52px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:18px}
.feature-title{font-size:1.05rem;font-weight:700;color:var(--text-main);margin-bottom:10px}
.feature-desc{font-size:0.88rem;color:var(--text-muted);line-height:1.7}

/* ============================================
   AI赋能模块
   ============================================ */
.ai-section{background:linear-gradient(135deg,var(--bg-mid) 0%,var(--bg-dark) 100%)}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.ai-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.ai-image img{width:100%;height:auto}
.ai-features{display:flex;flex-direction:column;gap:20px;margin-top:28px}
.ai-feature-item{display:flex;gap:16px;align-items:flex-start}
.ai-feature-icon{width:44px;height:44px;min-width:44px;background:rgba(45,158,90,0.15);border:1px solid rgba(45,158,90,0.3);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.ai-feature-text h4{font-size:0.95rem;font-weight:600;color:var(--text-main);margin-bottom:4px}
.ai-feature-text p{font-size:0.85rem;color:var(--text-muted);line-height:1.6}

/* ============================================
   专家团队
   ============================================ */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:all var(--transition);text-align:center}
.expert-card:hover{border-color:var(--primary-light);transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.expert-avatar{width:100%;aspect-ratio:1;overflow:hidden;background:var(--bg-card2)}
.expert-avatar img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.expert-card:hover .expert-avatar img{transform:scale(1.05)}
.expert-info{padding:18px 16px}
.expert-name{font-size:1rem;font-weight:700;color:var(--text-main);margin-bottom:4px}
.expert-role{font-size:0.8rem;color:var(--primary-light);margin-bottom:10px}
.expert-desc{font-size:0.82rem;color:var(--text-muted);line-height:1.6;margin-bottom:12px}
.expert-actions{display:flex;gap:8px;justify-content:center}
.expert-btn{font-size:0.78rem;padding:6px 12px;border-radius:var(--radius-sm);border:1px solid var(--border-light);color:var(--text-muted);transition:all var(--transition)}
.expert-btn:hover{border-color:var(--primary-light);color:var(--primary-light)}

/* ============================================
   社区功能
   ============================================ */
.community-section{position:relative;overflow:hidden}
.community-bg{position:absolute;inset:0;z-index:0}
.community-bg img{width:100%;height:100%;object-fit:cover;opacity:0.15}
.community-bg-overlay{position:absolute;inset:0;background:linear-gradient(135deg,var(--bg-dark) 0%,rgba(13,31,20,0.9) 100%);z-index:1}
.community-content{position:relative;z-index:2}
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{background:rgba(28,56,38,0.8);backdrop-filter:blur(8px);border-radius:var(--radius);padding:24px;border:1px solid var(--border);transition:all var(--transition)}
.community-card:hover{border-color:var(--primary-light);background:rgba(33,61,43,0.9)}
.community-icon{font-size:2rem;margin-bottom:12px}
.community-title{font-size:1rem;font-weight:700;color:var(--text-main);margin-bottom:8px}
.community-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.6}
.community-count{font-size:0.78rem;color:var(--primary-light);margin-top:10px;font-weight:600}

/* ============================================
   FAQ
   ============================================ */
.faq-section{background:var(--bg-mid)}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto}
.faq-item{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;transition:background var(--transition)}
.faq-question:hover{background:var(--bg-card2)}
.faq-q-text{font-size:0.95rem;font-weight:600;color:var(--text-main);flex:1}
.faq-icon{width:24px;height:24px;min-width:24px;border-radius:50%;background:rgba(45,158,90,0.15);display:flex;align-items:center;justify-content:center;color:var(--primary-light);transition:transform var(--transition)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 22px;max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease}
.faq-item.open .faq-answer{max-height:300px;padding:0 22px 18px}
.faq-answer p{font-size:0.88rem;color:var(--text-muted);line-height:1.8}

/* ============================================
   用户评价
   ============================================ */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:var(--bg-card);border-radius:var(--radius);padding:22px;border:1px solid var(--border);transition:all var(--transition)}
.review-card:hover{border-color:var(--primary-light);transform:translateY(-3px)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff;font-weight:700;flex-shrink:0}
.review-name{font-size:0.9rem;font-weight:600;color:var(--text-main)}
.review-date{font-size:0.75rem;color:var(--text-dim)}
.review-stars{color:var(--accent);font-size:0.85rem;margin-bottom:10px}
.review-text{font-size:0.87rem;color:var(--text-muted);line-height:1.7}
.review-tag{display:inline-block;margin-top:10px;font-size:0.75rem;color:var(--primary-light);background:rgba(45,158,90,0.1);padding:3px 10px;border-radius:20px}

/* ============================================
   合作伙伴
   ============================================ */
.partner-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}
.partner-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 24px;font-size:0.9rem;color:var(--text-muted);font-weight:600;transition:all var(--transition)}
.partner-item:hover{border-color:var(--primary-light);color:var(--primary-light)}

/* ============================================
   社交分享
   ============================================ */
.share-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.share-label{font-size:0.85rem;color:var(--text-muted)}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:0.82rem;font-weight:600;border:1px solid var(--border);color:var(--text-muted);transition:all var(--transition)}
.share-btn:hover{transform:translateY(-2px)}
.share-wechat:hover{border-color:#07c160;color:#07c160}
.share-weibo:hover{border-color:#e6162d;color:#e6162d}
.share-douyin:hover{border-color:#69c9d0;color:#69c9d0}
.share-bili:hover{border-color:#00a1d6;color:#00a1d6}

/* ============================================
   联系我们
   ============================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info-block{display:flex;flex-direction:column;gap:16px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border)}
.contact-icon-wrap{width:40px;height:40px;min-width:40px;background:rgba(45,158,90,0.15);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.contact-item-label{font-size:0.78rem;color:var(--text-dim);margin-bottom:2px}
.contact-item-value{font-size:0.9rem;color:var(--text-main);font-weight:500}
.contact-form-wrap{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border)}
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:0.85rem;color:var(--text-muted);margin-bottom:6px}
.form-input,.form-textarea{width:100%;background:var(--bg-dark);border:1px solid var(--border);border-radius:var(--radius-sm);padding:11px 14px;color:var(--text-main);font-size:0.9rem;transition:border-color var(--transition);outline:none}
.form-input:focus,.form-textarea:focus{border-color:var(--primary-light)}
.form-textarea{min-height:110px;resize:vertical}
.form-msg{font-size:0.82rem;margin-top:8px;display:none}
.form-msg.success{color:#4ade80;display:block}
.form-msg.error{color:#f87171;display:block}

/* ============================================
   FOOTER
   ============================================ */
.site-footer{background:var(--bg-dark);border-top:1px solid var(--border)}
.footer-top{padding:56px 0 40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px}
.footer-brand .footer-logo{display:inline-block;margin-bottom:16px}
.footer-brand .footer-logo img{height:40px;width:auto}
.footer-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.7;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.social-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);font-size:0.8rem;transition:all var(--transition)}
.social-btn:hover{border-color:var(--primary-light);color:var(--primary-light)}
.footer-title{font-size:0.9rem;font-weight:700;color:var(--text-main);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:0.85rem;color:var(--text-muted);transition:color var(--transition)}
.footer-links a:hover{color:var(--primary-light)}
.footer-contact-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.footer-contact-list li{display:flex;gap:8px;align-items:flex-start;font-size:0.82rem;color:var(--text-muted)}
.contact-icon{font-size:1rem;flex-shrink:0;margin-top:1px}
.footer-qr{display:flex;gap:16px;margin-top:16px}
.qr-item{display:flex;flex-direction:column;align-items:center;gap:6px}
.qr-item img{width:72px;height:72px;border-radius:6px;border:2px solid var(--border)}
.qr-item span{font-size:0.72rem;color:var(--text-dim)}
.footer-bottom{padding:18px 0;border-top:1px solid var(--border)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.copyright{font-size:0.82rem;color:var(--text-dim)}
.copyright a{color:var(--text-muted)}
.update-time{font-size:0.8rem;color:var(--text-dim)}
.footer-tags{display:flex;gap:10px;flex-wrap:wrap}
.footer-tags a{font-size:0.78rem;color:var(--text-dim);padding:3px 10px;border:1px solid var(--border);border-radius:20px;transition:all var(--transition)}
.footer-tags a:hover{border-color:var(--primary-light);color:var(--primary-light)}

/* ============================================
   内页通用
   ============================================ */
.page-hero{background:linear-gradient(135deg,var(--bg-mid) 0%,var(--bg-dark) 100%);padding:56px 0;border-bottom:1px solid var(--border)}
.page-hero-title{font-size:2.2rem;font-weight:800;color:var(--text-main);margin-bottom:10px}
.page-hero-desc{font-size:1rem;color:var(--text-muted);max-width:560px}

/* ============================================
   工具卡片
   ============================================ */
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tool-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:all var(--transition)}
.tool-card:hover{border-color:var(--primary-light);transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.tool-icon{font-size:2.2rem;margin-bottom:16px}
.tool-name{font-size:1.05rem;font-weight:700;color:var(--text-main);margin-bottom:8px}
.tool-desc{font-size:0.87rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.tool-tag{display:inline-block;font-size:0.72rem;padding:3px 10px;border-radius:20px;background:rgba(45,158,90,0.12);color:var(--primary-light);border:1px solid rgba(45,158,90,0.25)}

/* ============================================
   里番网百科卡片
   ============================================ */
.plant-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.plant-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:all var(--transition)}
.plant-card:hover{border-color:var(--primary-light);transform:translateY(-4px)}
.plant-thumb{aspect-ratio:4/3;overflow:hidden}
.plant-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.plant-card:hover .plant-thumb img{transform:scale(1.06)}
.plant-info{padding:14px}
.plant-name{font-size:0.92rem;font-weight:700;color:var(--text-main);margin-bottom:4px}
.plant-latin{font-size:0.75rem;color:var(--text-dim);font-style:italic;margin-bottom:8px}
.plant-desc{font-size:0.82rem;color:var(--text-muted);line-height:1.6}

/* ============================================
   视频弹窗
   ============================================ */
.video-modal{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center}
.video-modal.active{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.85)}
.modal-inner{position:relative;z-index:1;width:90%;max-width:860px;background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,0.7)}
.modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;background:rgba(0,0,0,0.5);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem;z-index:2;transition:background var(--transition)}
.modal-close:hover{background:rgba(220,50,50,0.7)}
.modal-video{aspect-ratio:16/9;background:#000;display:flex;align-items:center;justify-content:center}
.modal-video-placeholder{text-align:center;color:var(--text-muted)}
.modal-video-placeholder .play-big{font-size:4rem;color:var(--accent);margin-bottom:12px}
.modal-info{padding:20px 24px}
.modal-title{font-size:1.1rem;font-weight:700;color:var(--text-main);margin-bottom:6px}
.modal-meta{font-size:0.82rem;color:var(--text-dim)}

/* ============================================
   加载动画
   ============================================ */
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 0 0 rgba(45,158,90,0)}50%{box-shadow:0 0 20px 6px rgba(45,158,90,0.25)}}
.animate-fade-up{animation:fadeInUp 0.6s ease both}
.delay-1{animation-delay:0.1s}
.delay-2{animation-delay:0.2s}
.delay-3{animation-delay:0.3s}
.pulse-glow{animation:pulse-glow 2.5s infinite}

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

/* ============================================
   响应式
   ============================================ */
@media(max-width:1024px){
  .video-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .ai-grid{grid-template-columns:1fr}
  .plant-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .hero-title{font-size:2rem}
  .section-title{font-size:1.6rem}
  .video-grid,.feature-grid,.community-grid,.reviews-grid,.tool-grid{grid-template-columns:1fr}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr 1fr}
  .plant-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-dark);border-bottom:1px solid var(--border);padding:12px 0}
  .main-nav.open{display:block}
  .main-nav .nav-list{flex-direction:column;gap:0}
  .nav-item a{padding:12px 20px;border-radius:0}
  .nav-toggle{display:flex}
  .hero-stats{gap:20px}
  .hero-stat .num{font-size:1.4rem}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .hero{min-height:480px}
  .hero-title{font-size:1.6rem}
  .hero-actions{flex-direction:column}
  .expert-grid{grid-template-columns:1fr}
  .plant-grid{grid-template-columns:1fr 1fr}
  .section{padding:48px 0}
}