/* 小马拉大车植物视频社区 - 主样式表 | lyxhrpml.cn */
:root {
  --primary: #1a7a3c;
  --primary-dark: #0f5228;
  --primary-light: #2daa56;
  --accent: #5bc87a;
  --gold: #f5a623;
  --text-dark: #1a1a1a;
  --text-mid: #444;
  --text-light: #888;
  --bg-light: #f7faf8;
  --bg-white: #fff;
  --border: #e0ece5;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --radius: 12px;
  --transition: 0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:var(--text-dark);background:#fff;line-height:1.7;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-light)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:var(--text-dark)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== HEADER ===== */
#header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.97);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(0,0,0,0.06)}
.header-inner{display:flex;align-items:center;gap:20px;padding:12px 0}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-wrap img{width:40px;height:40px;object-fit:contain;border-radius:8px}
.logo-text{font-size:1.5rem;font-weight:900;color:var(--primary-dark);letter-spacing:1px}
.logo-text span{color:var(--accent)}
#main-nav ul{display:flex;gap:4px;flex-wrap:nowrap}
#main-nav ul li a{padding:7px 12px;border-radius:8px;font-size:0.88rem;font-weight:600;color:var(--text-mid);transition:all var(--transition);white-space:nowrap}
#main-nav ul li a:hover{background:var(--bg-light);color:var(--primary)}
.header-search{flex:1;max-width:280px}
.header-search input{width:100%;padding:8px 14px;border:1px solid var(--border);border-radius:20px;font-size:0.85rem;outline:none;transition:border-color var(--transition)}
.header-search input:focus{border-color:var(--primary)}
.header-search button{background:var(--primary);border:none;padding:8px 12px;border-radius:20px;cursor:pointer;font-size:0.9rem;color:#fff;transition:background var(--transition)}
.header-search button:hover{background:var(--primary-dark)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text-dark);border-radius:2px;transition:all var(--transition)}

/* ===== SEARCH BAR ===== */
.search-bar-section{background:var(--bg-light);border-bottom:1px solid var(--border);padding:10px 0}
.search-bar-inner{display:flex;align-items:center;gap:12px}
.search-input-wrap{flex:1;max-width:700px;margin:0 auto}
.search-input-wrap input{flex:1;padding:10px 18px;border:2px solid var(--border);border-radius:24px;font-size:0.9rem;outline:none;transition:border-color var(--transition);background:#fff;width:100%}
.search-input-wrap input:focus{border-color:var(--primary)}
.search-input-wrap button{background:var(--primary);color:#fff;border:none;padding:10px 22px;border-radius:24px;font-size:0.9rem;font-weight:600;cursor:pointer;transition:background var(--transition);white-space:nowrap}
.search-input-wrap button:hover{background:var(--primary-dark)}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:11px 24px;border-radius:24px;font-size:0.9rem;font-weight:700;cursor:pointer;transition:all var(--transition);border:2px solid transparent;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(26,122,60,0.35)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}

/* ===== HERO ===== */
#hero{position:relative;min-height:520px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,40,20,0.82) 0%,rgba(15,82,40,0.65) 60%,rgba(26,122,60,0.4) 100%)}
#hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:80px}
.hero-content{max-width:640px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);color:#fff;padding:7px 16px;border-radius:20px;font-size:0.85rem;font-weight:600;margin-bottom:20px;border:1px solid rgba(255,255,255,0.25)}
#hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:900;color:#fff;line-height:1.2;margin-bottom:20px}
#hero h1 em{font-style:normal;color:var(--accent)}
.hero-desc{color:rgba(255,255,255,0.88);font-size:1rem;line-height:1.8;margin-bottom:28px;max-width:540px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{position:absolute;bottom:0;left:0;right:0;z-index:2;background:rgba(0,0,0,0.45);backdrop-filter:blur(8px);display:flex;justify-content:center;gap:0}
.hero-stat{flex:1;max-width:200px;text-align:center;padding:16px 20px;border-right:1px solid rgba(255,255,255,0.1)}
.hero-stat:last-child{border-right:none}
.hero-stat strong{display:block;font-size:1.6rem;font-weight:900;color:var(--accent)}
.hero-stat span{font-size:0.8rem;color:rgba(255,255,255,0.75)}

/* ===== SECTIONS ===== */
.section{padding:72px 0}
.section-alt{background:var(--bg-light)}
.section-title{font-size:clamp(1.4rem,3vw,2rem);font-weight:900;text-align:center;color:var(--primary-dark);margin-bottom:12px}
.section-title::after{content:'';display:block;width:48px;height:4px;background:var(--primary);border-radius:2px;margin:12px auto 0}
.section-subtitle{text-align:center;color:var(--text-light);font-size:0.95rem;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}

/* ===== FEATURE CARDS ===== */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.feature-card{background:#fff;border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition)}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(26,122,60,0.15);border-color:var(--primary-light)}
.feature-icon{font-size:2.2rem;margin-bottom:14px}
.feature-card h3{font-size:1.05rem;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.feature-card p{font-size:0.88rem;color:var(--text-mid);line-height:1.8}

/* ===== VIDEO CARDS ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);cursor:pointer;transition:all var(--transition)}
.video-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(26,122,60,0.15)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1a1a2e}
.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:52px;height:52px;background:rgba(255,255,255,0.92);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.7);transition:all var(--transition)}
.play-btn::after{content:'';border-left:18px solid var(--primary);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card:hover .play-btn{opacity:1;transform:scale(1)}
.video-meta{padding:14px 16px}
.video-meta h3{font-size:0.88rem;font-weight:600;color:var(--text-dark);margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-stats{display:flex;gap:12px;font-size:0.78rem;color:var(--text-light);margin-bottom:8px}
.video-tag{display:inline-block;background:var(--bg-light);color:var(--primary);font-size:0.72rem;padding:3px 8px;border-radius:10px;margin-right:4px;margin-bottom:4px;border:1px solid var(--border)}

/* ===== TABS ===== */
.tab-wrap{}
.tab-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px;border-bottom:2px solid var(--border);padding-bottom:0}
.tab-btn{padding:9px 18px;border-radius:8px 8px 0 0;border:none;background:transparent;font-size:0.88rem;font-weight:600;color:var(--text-light);cursor:pointer;transition:all var(--transition);border-bottom:2px solid transparent;margin-bottom:-2px}
.tab-btn:hover{color:var(--primary);background:var(--bg-light)}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary);background:var(--bg-light)}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ===== EXPERT CARDS ===== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);display:flex;flex-direction:column;transition:all var(--transition)}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(26,122,60,0.15)}
.expert-img{width:100%;height:200px;object-fit:cover}
.expert-info{padding:20px}
.expert-info h3{font-size:1.1rem;font-weight:800;color:var(--primary-dark);margin-bottom:4px}
.expert-role{font-size:0.82rem;color:var(--primary-light);font-weight:600;margin-bottom:10px}
.expert-desc{font-size:0.85rem;color:var(--text-mid);line-height:1.7;margin-bottom:12px}
.expert-awards{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.award-tag{background:var(--bg-light);color:var(--primary-dark);font-size:0.72rem;padding:4px 10px;border-radius:10px;border:1px solid var(--border)}
.expert-links{display:flex;gap:10px}

/* ===== AI SECTION ===== */
.ai-feature-list{list-style:none;margin-bottom:0}
.ai-feature-list li{padding:10px 0;border-bottom:1px solid var(--border);font-size:0.9rem;color:var(--text-mid);line-height:1.7;padding-left:20px;position:relative}
.ai-feature-list li::before{content:'🌿';position:absolute;left:0;top:10px;font-size:0.85rem}
.ai-section-img img{border-radius:var(--radius);box-shadow:0 8px 32px rgba(0,0,0,0.12)}

/* ===== PARTNER GRID ===== */
.partner-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px}
.partner-card{background:#fff;border-radius:var(--radius);padding:20px 16px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition);display:flex;align-items:center;justify-content:center}
.partner-card:hover{transform:translateY(-3px);border-color:var(--primary-light);box-shadow:0 8px 28px rgba(26,122,60,0.12)}
.partner-card span{font-size:0.88rem;font-weight:600;color:var(--primary-dark)}

/* ===== STEPS ===== */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.step-card{background:#fff;border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition)}
.step-card:hover{transform:translateY(-4px);border-color:var(--primary-light)}
.step-icon{font-size:2.5rem;margin-bottom:14px}
.step-card h4{font-size:1rem;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.step-card p{font-size:0.85rem;color:var(--text-mid);line-height:1.7}

/* ===== REVIEWS ===== */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition)}
.review-card:hover{transform:translateY(-3px);border-color:var(--primary-light)}
.review-stars{color:var(--gold);font-size:1rem;margin-bottom:10px}
.review-text{font-size:0.88rem;color:var(--text-mid);line-height:1.8;margin-bottom:16px;font-style:italic}
.reviewer{display:flex;align-items:center;gap:12px}
.reviewer-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;flex-shrink:0}
.reviewer-name{font-weight:700;font-size:0.9rem;color:var(--text-dark)}
.reviewer-tag{font-size:0.78rem;color:var(--text-light)}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:all var(--transition)}
.faq-item.open{border-color:var(--primary-light)}
.faq-q{padding:18px 20px;font-size:0.95rem;font-weight:700;color:var(--text-dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:#fff;transition:background var(--transition)}
.faq-q:hover{background:var(--bg-light)}
.faq-item.open .faq-q{background:var(--bg-light);color:var(--primary)}
.faq-arrow{transition:transform var(--transition);font-size:0.8rem;color:var(--text-light)}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease}
.faq-item.open .faq-a{max-height:400px;padding:0 20px 18px}
.faq-a div{font-size:0.88rem;color:var(--text-mid);line-height:1.9}

/* ===== SHARE BAR ===== */
.share-bar{background:var(--bg-light);border-radius:var(--radius);padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;border:1px solid var(--border)}
.share-bar h4{font-size:0.95rem;font-weight:700;color:var(--text-dark)}
.share-btns{display:flex;gap:10px;flex-wrap:wrap}
.share-btn{padding:8px 18px;border-radius:20px;border:2px solid var(--border);background:#fff;font-size:0.82rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.share-wechat:hover{background:#07c160;color:#fff;border-color:#07c160}
.share-weibo:hover{background:#e6162d;color:#fff;border-color:#e6162d}
.share-douyin:hover{background:#000;color:#fff;border-color:#000}
.share-bilibili:hover{background:#00a1d6;color:#fff;border-color:#00a1d6}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info h3{font-size:1.1rem;font-weight:700;color:var(--primary-dark);margin-bottom:16px}
.contact-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px;padding:14px;background:var(--bg-light);border-radius:10px;border:1px solid var(--border)}
.contact-icon{font-size:1.3rem;flex-shrink:0;margin-top:2px}
.contact-detail{display:flex;flex-direction:column;gap:3px}
.contact-detail strong{font-size:0.85rem;font-weight:700;color:var(--text-dark)}
.contact-detail span{font-size:0.88rem;color:var(--text-mid)}
.qr-row{display:flex;gap:20px;flex-wrap:wrap}
.qr-item{text-align:center}
.qr-item img{width:100px;height:100px;border-radius:8px;border:1px solid var(--border);margin:0 auto 8px}
.qr-item p{font-size:0.75rem;color:var(--text-light);line-height:1.5}

/* ===== BREADCRUMB ===== */
.breadcrumb{background:var(--bg-light);border-bottom:1px solid var(--border);padding:10px 0}
.breadcrumb ol{display:flex;gap:8px;font-size:0.82rem;color:var(--text-light)}
.breadcrumb ol li:not(:last-child)::after{content:'›';margin-left:8px}
.breadcrumb ol li a{color:var(--primary)}

/* ===== PAGE HERO ===== */
.page-hero{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 60%,var(--primary-light) 100%);padding:60px 20px;text-align:center;color:#fff}
.page-hero h1{font-size:clamp(1.6rem,4vw,2.5rem);font-weight:900;margin-bottom:12px}
.page-hero p{font-size:1rem;opacity:0.85;max-width:600px;margin:0 auto}

/* ===== FOOTER ===== */
#footer{background:var(--primary-dark);color:rgba(255,255,255,0.85);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-wrap{margin-bottom:16px}
.footer-brand p{font-size:0.85rem;line-height:1.8;color:rgba(255,255,255,0.65);margin-bottom:20px}
.footer-col h4{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,0.15)}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:0.85rem;color:rgba(255,255,255,0.65);transition:color var(--transition)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:0.78rem;color:rgba(255,255,255,0.5)}
.footer-bottom a{color:rgba(255,255,255,0.65)}
.footer-bottom a:hover{color:var(--accent)}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;gap:10px}
  #main-nav{display:none;width:100%;order:10}
  #main-nav.open{display:block}
  #main-nav ul{flex-direction:column;gap:0;padding:8px 0}
  #main-nav ul li a{display:block;padding:10px 16px}
  .nav-toggle{display:flex}
  .header-search{display:none}
  .hero-stats{position:static;flex-wrap:wrap}
  .hero-stat{min-width:50%}
  .footer-grid{grid-template-columns:1fr}
  .feature-grid,.video-grid,.expert-grid,.review-grid,.steps-grid{grid-template-columns:1fr}
  .share-bar{flex-direction:column;align-items:flex-start}
  section[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important}
  div[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important}
  div[style*="grid-template-columns:repeat(3"]{grid-template-columns:1fr!important}
}
@media(max-width:480px){
  .hero-stat{min-width:100%}
  .tab-nav{gap:4px}
  .tab-btn{padding:7px 12px;font-size:0.8rem}
  .btn{padding:9px 18px;font-size:0.85rem}
}