/* ============================================================
   国产自拍植物社区 - 主样式表
   原创配色：深森林绿 + 翠玉青 + 暖琥珀
   ============================================================ */

:root {
  --primary:       #1a7a4a;
  --primary-dark:  #0f5233;
  --primary-light: #2db36e;
  --accent:        #f0a500;
  --accent2:       #3ecf8e;
  --bg-dark:       #0b1f14;
  --bg-card:       #122b1c;
  --bg-card2:      #163523;
  --text-main:     #e8f5ee;
  --text-muted:    #7fb899;
  --text-dim:      #4d8a66;
  --border:        rgba(46,160,90,0.2);
  --gradient-main: linear-gradient(135deg,#1a7a4a 0%,#0d9e5c 50%,#f0a500 100%);
  --gradient-hero: linear-gradient(160deg,rgba(11,31,20,0.92) 0%,rgba(15,82,51,0.7) 60%,rgba(240,165,0,0.15) 100%);
  --shadow-card:   0 4px 24px rgba(0,0,0,0.4);
  --radius:        12px;
  --transition:    all 0.3s ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{background:#0b1f14;color:#e8f5ee;font-family:'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.7;overflow-x:hidden;}
a{color:#3ecf8e;text-decoration:none;transition:var(--transition);}
a:hover{color:#f0a500;}
img{max-width:100%;height:auto;display:block;}
ul{list-style:none;}
button{cursor:pointer;border:none;background:none;}

/* ---- 滚动条 ---- */
::-webkit-scrollbar{width:6px;}
::-webkit-scrollbar-track{background:#0b1f14;}
::-webkit-scrollbar-thumb{background:#1a7a4a;border-radius:3px;}

/* ============================================================
   布局工具
   ============================================================ */
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section-alt{background:#0f2419;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flex{display:flex;align-items:center;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}
.text-center{text-align:center;}
.mt-8{margin-top:8px;}
.mt-16{margin-top:16px;}
.mt-24{margin-top:24px;}
.mt-40{margin-top:40px;}
.mb-8{margin-bottom:8px;}
.mb-16{margin-bottom:16px;}
.mb-24{margin-bottom:24px;}
.mb-40{margin-bottom:40px;}

/* ============================================================
   按钮
   ============================================================ */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;transition:var(--transition);}
.btn-primary{background:var(--gradient-main);color:#fff;box-shadow:0 4px 16px rgba(26,122,74,0.4);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,122,74,0.6);color:#fff;}
.btn-outline{border:2px solid var(--primary-light);color:var(--primary-light);}
.btn-outline:hover{background:var(--primary-light);color:#fff;}
.btn-sm{padding:8px 18px;font-size:13px;}

/* ============================================================
   标题组件
   ============================================================ */
.section-label{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2px;color:var(--accent);text-transform:uppercase;margin-bottom:12px;padding:4px 12px;border:1px solid rgba(240,165,0,0.3);border-radius:4px;}
.section-title{font-size:clamp(24px,4vw,38px);font-weight:800;line-height:1.25;color:#fff;}
.section-title span{background:var(--gradient-main);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.section-desc{font-size:16px;color:var(--text-muted);margin-top:12px;max-width:600px;}
.section-head{margin-bottom:48px;}
.section-head.text-center .section-desc{margin:12px auto 0;}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(11,31,20,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
.site-logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{width:42px;height:42px;background:var(--gradient-main);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900;color:#fff;}
.logo-name{font-size:20px;font-weight:800;color:#fff;letter-spacing:1px;}
.logo-name em{font-style:normal;color:var(--accent);}
.site-nav{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{display:block;padding:8px 14px;font-size:14px;font-weight:600;color:var(--text-muted);border-radius:6px;transition:var(--transition);}
.nav-link:hover,.nav-link.active{color:#fff;background:rgba(26,122,74,0.3);}
.nav-link.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:16px;height:2px;background:var(--accent);border-radius:1px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-btn{padding:8px 20px;background:var(--gradient-main);color:#fff;border-radius:8px;font-size:13px;font-weight:700;transition:var(--transition);}
.header-btn:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(26,122,74,0.5);color:#fff;}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px;}
.menu-toggle span{width:22px;height:2px;background:#fff;border-radius:1px;transition:var(--transition);}

/* ============================================================
   搜索栏
   ============================================================ */
.search-bar{background:#0f2419;border-bottom:1px solid var(--border);padding:10px 0;}
.search-inner{display:flex;align-items:center;gap:12px;max-width:700px;margin:0 auto;padding:0 20px;}
.search-wrap{position:relative;flex:1;}
.search-input{width:100%;background:#1a3326;border:1px solid var(--border);border-radius:8px;padding:10px 16px 10px 42px;color:#fff;font-size:14px;outline:none;transition:var(--transition);}
.search-input:focus{border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(26,122,74,0.2);}
.search-input::placeholder{color:var(--text-dim);}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-dim);font-size:16px;}
.search-btn{padding:10px 20px;background:var(--primary);color:#fff;border-radius:8px;font-size:14px;font-weight:600;transition:var(--transition);}
.search-btn:hover{background:var(--primary-light);}
.search-dropdown{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#1a3326;border:1px solid var(--border);border-radius:8px;overflow:hidden;display:none;z-index:200;box-shadow:var(--shadow-card);}
.search-suggest{padding:6px 0;}
.search-suggest-item{display:flex;align-items:center;gap:10px;padding:10px 16px;font-size:14px;color:var(--text-muted);cursor:pointer;transition:var(--transition);}
.search-suggest-item:hover{background:rgba(26,122,74,0.2);color:#fff;}
.search-suggest-item .s-icon{color:var(--text-dim);font-size:13px;}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb{background:#0f2419;padding:10px 0;border-bottom:1px solid var(--border);}
.breadcrumb-inner{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-dim);}
.breadcrumb-inner a{color:var(--text-muted);}
.breadcrumb-inner a:hover{color:var(--accent);}
.breadcrumb-inner .sep{color:var(--text-dim);}
.breadcrumb-inner .current{color:var(--text-main);}

/* ============================================================
   Hero Banner
   ============================================================ */
.hero{position:relative;min-height:580px;display:flex;align-items:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0;}
.hero-overlay{position:absolute;inset:0;background:var(--gradient-hero);z-index:1;}
.hero-content{position:relative;z-index:2;max-width:640px;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(240,165,0,0.15);border:1px solid rgba(240,165,0,0.4);border-radius:20px;padding:6px 16px;font-size:13px;color:var(--accent);font-weight:600;margin-bottom:20px;}
.hero-tag::before{content:'🌿';}
.hero-title{font-size:clamp(32px,5vw,56px);font-weight:900;line-height:1.15;color:#fff;margin-bottom:16px;}
.hero-title .hl{background:var(--gradient-main);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero-desc{font-size:17px;color:rgba(232,245,238,0.85);margin-bottom:32px;line-height:1.7;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:32px;margin-top:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.1);}
.hero-stat-num{font-size:28px;font-weight:800;color:#fff;}
.hero-stat-num span{font-size:16px;color:var(--accent);}
.hero-stat-label{font-size:13px;color:var(--text-muted);margin-top:2px;}

/* ============================================================
   视频卡片
   ============================================================ */
.video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;transition:var(--transition);border:1px solid var(--border);}
.video-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.5);border-color:var(--primary-light);}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0b1f14;}
.video-thumb .v-cover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease;}
.video-thumb .v-player{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none;}
.video-card:hover .v-cover{transform:scale(1.06);}
.v-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);z-index:3;opacity:0;transition:opacity 0.3s,transform 0.3s;background:none;border:none;cursor:pointer;padding:0;}
.video-card:hover .v-play-btn{opacity:1;transform:translate(-50%,-50%) scale(1);}
.v-play-icon{width:54px;height:54px;background:var(--gradient-main);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 0 28px rgba(26,122,74,0.7);}
.v-play-icon::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px;}
.v-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px;}
.v-tag{position:absolute;top:8px;left:8px;background:var(--primary);color:#fff;font-size:11px;padding:3px 10px;border-radius:4px;font-weight:600;}
.v-info{padding:14px;}
.v-title{font-size:14px;font-weight:600;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#fff;}
.v-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-muted);}
.v-meta span{display:flex;align-items:center;gap:4px;}

/* ============================================================
   功能卡片
   ============================================================ */
.feat-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:var(--transition);}
.feat-card:hover{border-color:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow-card);}
.feat-icon{width:52px;height:52px;background:rgba(26,122,74,0.2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px;}
.feat-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px;}
.feat-desc{font-size:14px;color:var(--text-muted);line-height:1.6;}

/* ============================================================
   专家卡片
   ============================================================ */
.expert-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);}
.expert-card:hover{border-color:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow-card);}
.expert-avatar{width:100%;aspect-ratio:1/1;object-fit:cover;}
.expert-body{padding:20px;}
.expert-name{font-size:17px;font-weight:800;color:#fff;margin-bottom:4px;}
.expert-role{font-size:13px;color:var(--accent);font-weight:600;margin-bottom:10px;}
.expert-bio{font-size:13px;color:var(--text-muted);line-height:1.6;margin-bottom:14px;}
.expert-awards{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;}
.award-tag{font-size:11px;padding:3px 10px;background:rgba(240,165,0,0.1);border:1px solid rgba(240,165,0,0.3);border-radius:4px;color:var(--accent);}
.expert-actions{display:flex;gap:8px;}
.expert-btn{flex:1;text-align:center;padding:8px;border-radius:6px;font-size:12px;font-weight:600;transition:var(--transition);}
.expert-btn-primary{background:var(--primary);color:#fff;}
.expert-btn-primary:hover{background:var(--primary-light);color:#fff;}
.expert-btn-outline{border:1px solid var(--border);color:var(--text-muted);}
.expert-btn-outline:hover{border-color:var(--primary-light);color:var(--primary-light);}

/* ============================================================
   合作品牌墙
   ============================================================ */
.partner-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;margin-top:32px;}
.partner-item{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:20px 16px;display:flex;flex-direction:column;align-items:center;gap:10px;transition:var(--transition);}
.partner-item:hover{border-color:var(--primary-light);transform:translateY(-2px);}
.partner-logo{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;}
.partner-name{font-size:12px;font-weight:600;color:var(--text-muted);text-align:center;}

/* ============================================================
   FAQ
   ============================================================ */
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;font-size:15px;font-weight:600;color:#fff;transition:var(--transition);}
.faq-q:hover{color:var(--accent);}
.faq-q .faq-arrow{font-size:18px;color:var(--text-dim);transition:transform 0.3s;}
.faq-item.open .faq-arrow{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s;}
.faq-item.open .faq-a{max-height:300px;}
.faq-a-inner{padding:0 22px 18px;font-size:14px;color:var(--text-muted);line-height:1.7;border-top:1px solid var(--border);}

/* ============================================================
   用户评价
   ============================================================ */
.review-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);}
.review-header{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient-main);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;color:#fff;flex-shrink:0;}
.review-name{font-size:15px;font-weight:700;color:#fff;}
.review-date{font-size:12px;color:var(--text-dim);margin-top:2px;}
.review-stars{color:#f0a500;font-size:14px;margin-bottom:10px;}
.review-text{font-size:14px;color:var(--text-muted);line-height:1.7;}
.review-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;}
.review-tag{font-size:11px;padding:3px 10px;background:rgba(26,122,74,0.15);border:1px solid var(--border);border-radius:4px;color:var(--text-muted);}

/* ============================================================
   HowTo 步骤
   ============================================================ */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin-top:32px;}
.step-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);position:relative;}
.step-num{width:36px;height:36px;background:var(--gradient-main);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px;}
.step-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:8px;}
.step-desc{font-size:13px;color:var(--text-muted);line-height:1.6;}

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;}
.contact-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border);}
.contact-title{font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.contact-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);}
.contact-item:last-child{border-bottom:none;}
.contact-icon{width:36px;height:36px;background:rgba(26,122,74,0.15);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;}
.contact-label{font-size:12px;color:var(--text-dim);margin-bottom:2px;}
.contact-val{font-size:14px;color:var(--text-main);}
.qr-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;}
.qr-item{text-align:center;}
.qr-box{width:90px;height:90px;background:#fff;border-radius:8px;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.qr-box svg{width:80px;height:80px;}
.qr-label{font-size:12px;color:var(--text-muted);}

/* ============================================================
   社交分享
   ============================================================ */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.share-label{font-size:13px;color:var(--text-muted);margin-right:4px;}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:6px;font-size:13px;font-weight:600;transition:var(--transition);}
.share-wechat{background:#07c160;color:#fff;}
.share-weibo{background:#e6162d;color:#fff;}
.share-douyin{background:#000;color:#fff;}
.share-bili{background:#00a1d6;color:#fff;}
.share-btn:hover{opacity:0.85;transform:translateY(-1px);color:#fff;}

/* ============================================================
   Tab 筛选
   ============================================================ */
.tab-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px;}
.tab-btn{padding:8px 18px;border-radius:6px;font-size:13px;font-weight:600;color:var(--text-muted);background:var(--bg-card);border:1px solid var(--border);transition:var(--transition);}
.tab-btn.active,.tab-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);}
.tab-panel{display:none;}
.tab-panel.active{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;}

/* ============================================================
   统计数字
   ============================================================ */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px;}
.stat-box{background:var(--bg-card);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid var(--border);}
.stat-num{font-size:32px;font-weight:900;color:#fff;}
.stat-num em{font-style:normal;color:var(--accent);}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:4px;}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{background:#071510;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:48px;}
.footer-brand .logo-mark{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-top:12px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border);}
.footer-col ul li{margin-bottom:8px;}
.footer-col ul li a{font-size:13px;color:var(--text-muted);transition:var(--transition);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.social-icon{width:36px;height:36px;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;transition:var(--transition);}
.social-icon:hover{background:var(--primary);border-color:var(--primary);}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-bottom p{font-size:13px;color:var(--text-dim);}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--accent);}
.update-time{font-size:12px;color:var(--text-dim);}

/* ============================================================
   页面Hero（内页）
   ============================================================ */
.page-hero{position:relative;padding:60px 0;overflow:hidden;}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(0.25);}
.page-hero-content{position:relative;z-index:2;}
.page-hero h1{font-size:clamp(28px,4vw,42px);font-weight:900;color:#fff;margin-bottom:12px;}
.page-hero p{font-size:16px;color:var(--text-muted);max-width:600px;}

/* ============================================================
   Toast
   ============================================================ */
.xh-toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(80px);background:#1a7a4a;color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;font-weight:600;z-index:9999;opacity:0;transition:all 0.4s;pointer-events:none;box-shadow:0 4px 20px rgba(0,0,0,0.4);}
.xh-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ============================================================
   干扰标签（隐藏，不影响布局）
   ============================================================ */
.dy-noise{display:none!important;visibility:hidden!important;position:absolute!important;width:0!important;height:0!important;overflow:hidden!important;pointer-events:none!important;}

/* ============================================================
   响应式
   ============================================================ */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
}
@media(max-width:768px){
  .section{padding:48px 0;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .hero{min-height:460px;}
  .hero-stats{gap:20px;}
  .site-nav{display:none;position:fixed;inset:68px 0 0;background:rgba(11,31,20,0.98);flex-direction:column;align-items:flex-start;padding:20px;gap:4px;overflow-y:auto;}
  .site-nav.open{display:flex;}
  .nav-link{font-size:16px;padding:12px 16px;width:100%;}
  .menu-toggle{display:flex;}
  .header-actions .header-btn{display:none;}
  .howto-steps{grid-template-columns:1fr 1fr;}
  .qr-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .tab-panel.active{grid-template-columns:1fr;}
}
@media(max-width:480px){
  .hero-actions{flex-direction:column;}
  .hero-stats{flex-wrap:wrap;}
  .stats-row{grid-template-columns:1fr 1fr;}
  .howto-steps{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:repeat(3,1fr);}
}