/* =====================================================
   捷克街头植物社区 - 主样式表
   Brand: 捷克街头 | Domain: ncpjiod.cn
   Theme: 绿色植物·小红书风格·清新自然
   ===================================================== */

/* ---- CSS变量 ---- */
:root {
  --primary:      #3A7D44;   /* 深绿 */
  --primary-light:#5BA85A;   /* 中绿 */
  --primary-pale: #E8F5E9;   /* 淡绿背景 */
  --accent:       #F4A261;   /* 暖橙点缀 */
  --accent2:      #E76F51;   /* 深橙 */
  --text-dark:    #2D3436;
  --text-mid:     #636E72;
  --text-light:   #B2BEC3;
  --bg-white:     #FFFFFF;
  --bg-cream:     #FAFAF7;
  --bg-section:   #F4F9F4;
  --border:       #DDE8DD;
  --shadow-sm:    0 2px 8px rgba(58,125,68,.10);
  --shadow-md:    0 6px 24px rgba(58,125,68,.15);
  --shadow-lg:    0 12px 40px rgba(58,125,68,.20);
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --font-main:    'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  --transition:   all .3s cubic-bezier(.4,0,.2,1);
}

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

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:#f1f1f1; }
::-webkit-scrollbar-thumb { background:var(--primary-light); border-radius:3px; }

/* =====================================================
   顶部加载条
   ===================================================== */
.loading-bar {
  position:fixed; top:0; left:0; height:3px; width:0;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  z-index:9999; transition:width .4s ease;
}

/* =====================================================
   导航栏
   ===================================================== */
.site-nav {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.nav-inner {
  max-width:1280px; margin:0 auto;
  padding:0 24px;
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.nav-brand {
  display:flex; align-items:center; gap:10px;
  font-size:1.35rem; font-weight:700; color:var(--primary);
  letter-spacing:.02em;
}
.nav-brand img { width:40px; height:40px; object-fit:contain; border-radius:8px; }
.nav-brand span { color:var(--primary); }
.nav-brand em { color:var(--accent); font-style:normal; }

.nav-links {
  display:flex; align-items:center; gap:4px;
}
.nav-links a {
  padding:8px 14px; border-radius:var(--radius-sm);
  font-size:.93rem; font-weight:500; color:var(--text-mid);
  transition:var(--transition);
  white-space:nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color:var(--primary);
  background:var(--primary-pale);
}

.nav-right { display:flex; align-items:center; gap:12px; }
.btn-join {
  padding:9px 22px; border-radius:var(--radius-xl);
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:.9rem; font-weight:600;
  box-shadow:0 3px 12px rgba(58,125,68,.3);
  transition:var(--transition);
}
.btn-join:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(58,125,68,.4); }

.menu-toggle {
  display:none; flex-direction:column; gap:5px;
  width:28px; padding:4px;
}
.menu-toggle span {
  display:block; height:2px; background:var(--primary);
  border-radius:2px; transition:var(--transition);
}

/* =====================================================
   搜索框（导航下方）
   ===================================================== */
.search-bar-wrap {
  background:var(--primary-pale);
  border-bottom:1px solid var(--border);
  padding:10px 24px;
  margin-top:68px;
}
.search-bar-inner {
  max-width:700px; margin:0 auto;
  display:flex; align-items:center; gap:0;
}
.search-input {
  flex:1; padding:10px 18px;
  border:2px solid var(--border); border-right:none;
  border-radius:var(--radius-xl) 0 0 var(--radius-xl);
  font-size:.95rem; color:var(--text-dark);
  background:#fff; outline:none;
  transition:var(--transition);
}
.search-input:focus { border-color:var(--primary); }
.search-input::placeholder { color:var(--text-light); }
.search-btn {
  padding:10px 22px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:.95rem; font-weight:600;
  border-radius:0 var(--radius-xl) var(--radius-xl) 0;
  transition:var(--transition);
}
.search-btn:hover { background:var(--accent); }
.search-tags { max-width:700px; margin:6px auto 0; display:flex; gap:8px; flex-wrap:wrap; }
.search-tag {
  font-size:.78rem; color:var(--primary);
  background:#fff; border:1px solid var(--border);
  padding:3px 10px; border-radius:20px; cursor:pointer;
  transition:var(--transition);
}
.search-tag:hover { background:var(--primary); color:#fff; }

/* =====================================================
   Hero Banner
   ===================================================== */
.hero-section {
  position:relative; min-height:88vh;
  display:flex; align-items:center;
  overflow:hidden;
  margin-top:0;
}
.hero-bg {
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  background-attachment:fixed;
}
.hero-bg::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,.2) 60%,transparent 100%);
}
.hero-content {
  position:relative; z-index:2;
  max-width:1280px; margin:0 auto; padding:0 24px;
  width:100%;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:6px;
  background:rgba(255,255,255,.15); backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.3);
  color:#fff; font-size:.82rem; font-weight:600;
  padding:5px 14px; border-radius:20px; margin-bottom:20px;
  letter-spacing:.05em;
}
.hero-badge::before { content:'🌿'; }
.hero-title {
  font-size:clamp(2rem,5vw,3.8rem);
  font-weight:800; color:#fff; line-height:1.2;
  margin-bottom:16px; letter-spacing:-.01em;
}
.hero-title .brand-highlight {
  color:var(--accent);
  text-shadow:0 0 30px rgba(244,162,97,.5);
}
.hero-desc {
  font-size:clamp(1rem,1.8vw,1.2rem);
  color:rgba(255,255,255,.88); max-width:600px;
  margin-bottom:32px; line-height:1.8;
}
.hero-btns { display:flex; gap:14px; flex-wrap:wrap; }
.btn-primary {
  padding:14px 32px; border-radius:var(--radius-xl);
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:1rem; font-weight:700;
  box-shadow:0 4px 20px rgba(58,125,68,.4);
  transition:var(--transition);
}
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 30px rgba(58,125,68,.5); }
.btn-outline {
  padding:14px 32px; border-radius:var(--radius-xl);
  border:2px solid rgba(255,255,255,.7);
  color:#fff; font-size:1rem; font-weight:600;
  backdrop-filter:blur(4px);
  transition:var(--transition);
}
.btn-outline:hover { background:rgba(255,255,255,.15); border-color:#fff; }

.hero-stats {
  display:flex; gap:32px; margin-top:48px; flex-wrap:wrap;
}
.hero-stat { text-align:left; }
.hero-stat-num {
  font-size:1.8rem; font-weight:800; color:#fff;
  line-height:1;
}
.hero-stat-label { font-size:.82rem; color:rgba(255,255,255,.7); margin-top:4px; }

/* =====================================================
   通用Section
   ===================================================== */
.section {
  padding:80px 24px;
}
.section-alt { background:var(--bg-section); }
.section-dark {
  background:linear-gradient(135deg,#1a3a1f,#2d5a34);
  color:#fff;
}
.container { max-width:1280px; margin:0 auto; }

.section-header { text-align:center; margin-bottom:56px; }
.section-eyebrow {
  display:inline-block; font-size:.8rem; font-weight:700;
  color:var(--primary); letter-spacing:.12em; text-transform:uppercase;
  background:var(--primary-pale); padding:4px 14px;
  border-radius:20px; margin-bottom:12px;
}
.section-title {
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:800; color:var(--text-dark);
  line-height:1.25; margin-bottom:14px;
}
.section-dark .section-title { color:#fff; }
.section-title .brand { color:var(--primary); }
.section-desc {
  font-size:1rem; color:var(--text-mid); max-width:600px; margin:0 auto;
}
.section-dark .section-desc { color:rgba(255,255,255,.75); }

/* =====================================================
   视频卡片
   ===================================================== */
.video-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}
.video-card {
  background:#fff; border-radius:var(--radius-md);
  overflow:hidden; box-shadow:var(--shadow-sm);
  transition:var(--transition);
  cursor:pointer;
}
.video-card:hover {
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.video-thumb-wrap {
  position:relative; overflow:hidden;
  aspect-ratio:16/9;
  background:#1a2e1a;
}
.video-thumb-wrap img {
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease;
}
.video-card:hover .video-thumb-wrap img { transform:scale(1.08); }

.play-overlay {
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  background:rgba(0,0,0,0);
  transition:var(--transition);
}
.video-card:hover .play-overlay { background:rgba(0,0,0,.35); }
.play-btn {
  width:56px; height:56px; border-radius:50%;
  background:rgba(255,255,255,.92);
  display:flex; align-items:center; justify-content:center;
  opacity:0; transform:scale(.7);
  transition:var(--transition);
  box-shadow:0 4px 20px rgba(0,0,0,.3);
}
.play-btn::after {
  content:''; display:block;
  border-style:solid;
  border-width:10px 0 10px 18px;
  border-color:transparent transparent transparent var(--primary);
  margin-left:4px;
}
.video-card:hover .play-btn { opacity:1; transform:scale(1); }

.video-duration {
  position:absolute; bottom:10px; right:10px;
  background:rgba(0,0,0,.75); color:#fff;
  font-size:.75rem; padding:2px 8px; border-radius:4px;
  font-weight:600;
}
.video-tag {
  position:absolute; top:10px; left:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:.72rem; font-weight:700;
  padding:3px 10px; border-radius:20px;
}
.video-info { padding:16px; }
.video-title {
  font-size:.95rem; font-weight:700; color:var(--text-dark);
  line-height:1.4; margin-bottom:8px;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
  overflow:hidden;
}
.video-meta {
  display:flex; justify-content:space-between; align-items:center;
  font-size:.78rem; color:var(--text-mid);
}
.video-author { display:flex; align-items:center; gap:5px; }
.video-author-dot {
  width:20px; height:20px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:.6rem; font-weight:700;
}
.video-stats { display:flex; gap:10px; }
.video-stats span { display:flex; align-items:center; gap:3px; }

/* =====================================================
   特色卡片（功能模块）
   ===================================================== */
.feature-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:24px;
}
.feature-card {
  background:#fff; border-radius:var(--radius-md);
  padding:28px 24px; text-align:center;
  border:1px solid var(--border);
  transition:var(--transition);
}
.feature-card:hover {
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.feature-icon {
  width:64px; height:64px; border-radius:var(--radius-md);
  background:linear-gradient(135deg,var(--primary-pale),#c8e6c9);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 16px; font-size:1.8rem;
}
.feature-title {
  font-size:1.05rem; font-weight:700; color:var(--text-dark);
  margin-bottom:8px;
}
.feature-desc { font-size:.88rem; color:var(--text-mid); line-height:1.6; }

/* =====================================================
   专家卡片
   ===================================================== */
.expert-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:28px;
}
.expert-card {
  background:#fff; border-radius:var(--radius-md);
  overflow:hidden; box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.expert-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-md); }
.expert-img-wrap {
  position:relative; height:220px; overflow:hidden;
  background:var(--primary-pale);
}
.expert-img-wrap img { width:100%; height:100%; object-fit:cover; }
.expert-badge {
  position:absolute; top:12px; right:12px;
  background:var(--primary); color:#fff;
  font-size:.72rem; font-weight:700; padding:3px 10px; border-radius:20px;
}
.expert-body { padding:20px; }
.expert-name { font-size:1.1rem; font-weight:700; color:var(--text-dark); margin-bottom:4px; }
.expert-role { font-size:.82rem; color:var(--primary); font-weight:600; margin-bottom:10px; }
.expert-desc { font-size:.85rem; color:var(--text-mid); line-height:1.6; margin-bottom:14px; }
.expert-tags { display:flex; gap:6px; flex-wrap:wrap; margin-bottom:14px; }
.expert-tag {
  font-size:.72rem; background:var(--primary-pale);
  color:var(--primary); padding:3px 10px; border-radius:20px;
}
.expert-actions { display:flex; gap:10px; }
.btn-sm {
  padding:7px 16px; border-radius:var(--radius-xl);
  font-size:.82rem; font-weight:600;
  transition:var(--transition);
}
.btn-sm-primary {
  background:var(--primary); color:#fff;
}
.btn-sm-primary:hover { background:var(--primary-light); }
.btn-sm-outline {
  border:1.5px solid var(--primary); color:var(--primary);
}
.btn-sm-outline:hover { background:var(--primary-pale); }

/* =====================================================
   FAQ
   ===================================================== */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item {
  border:1px solid var(--border); border-radius:var(--radius-md);
  margin-bottom:12px; overflow:hidden;
  transition:var(--transition);
}
.faq-item.open { border-color:var(--primary); box-shadow:var(--shadow-sm); }
.faq-question {
  padding:18px 24px; display:flex; justify-content:space-between; align-items:center;
  cursor:pointer; font-weight:600; font-size:.97rem; color:var(--text-dark);
  background:#fff; user-select:none;
}
.faq-question:hover { background:var(--primary-pale); }
.faq-icon {
  width:24px; height:24px; border-radius:50%;
  background:var(--primary-pale); color:var(--primary);
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; font-weight:700; flex-shrink:0;
  transition:transform .3s ease;
}
.faq-item.open .faq-icon { transform:rotate(45deg); background:var(--primary); color:#fff; }
.faq-answer {
  max-height:0; overflow:hidden; transition:max-height .4s ease, padding .3s ease;
  padding:0 24px; font-size:.9rem; color:var(--text-mid); line-height:1.8;
  background:#fff;
}
.faq-item.open .faq-answer { max-height:300px; padding:0 24px 18px; }

/* =====================================================
   用户评论
   ===================================================== */
.review-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}
.review-card {
  background:#fff; border-radius:var(--radius-md);
  padding:24px; border:1px solid var(--border);
  transition:var(--transition);
}
.review-card:hover { border-color:var(--primary); box-shadow:var(--shadow-sm); }
.review-header { display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.review-avatar {
  width:44px; height:44px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:1rem; font-weight:700; flex-shrink:0;
}
.review-name { font-weight:700; font-size:.95rem; color:var(--text-dark); }
.review-date { font-size:.75rem; color:var(--text-light); }
.review-stars { color:#F4A261; font-size:.9rem; letter-spacing:2px; margin-bottom:10px; }
.review-text { font-size:.88rem; color:var(--text-mid); line-height:1.7; }
.review-tag {
  display:inline-block; margin-top:10px;
  font-size:.72rem; background:var(--primary-pale);
  color:var(--primary); padding:3px 10px; border-radius:20px;
}

/* =====================================================
   合作品牌
   ===================================================== */
.partner-grid {
  display:flex; flex-wrap:wrap; gap:16px; justify-content:center; align-items:center;
}
.partner-item {
  background:#fff; border:1px solid var(--border);
  border-radius:var(--radius-md); padding:16px 28px;
  font-size:.9rem; font-weight:600; color:var(--text-mid);
  transition:var(--transition); cursor:default;
}
.partner-item:hover { border-color:var(--primary); color:var(--primary); box-shadow:var(--shadow-sm); }

/* =====================================================
   How-To步骤
   ===================================================== */
.howto-steps {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:24px; counter-reset:step;
}
.howto-step {
  background:#fff; border-radius:var(--radius-md);
  padding:28px 24px; text-align:center;
  border:1px solid var(--border);
  position:relative;
}
.step-num {
  width:48px; height:48px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:1.2rem; font-weight:800;
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 16px;
}
.step-title { font-size:1rem; font-weight:700; color:var(--text-dark); margin-bottom:8px; }
.step-desc { font-size:.85rem; color:var(--text-mid); line-height:1.6; }

/* =====================================================
   联系/QR区域
   ===================================================== */
.contact-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}
.contact-card {
  background:#fff; border-radius:var(--radius-md);
  padding:28px; border:1px solid var(--border);
  text-align:center;
}
.contact-icon { font-size:2.4rem; margin-bottom:14px; }
.contact-title { font-size:1.05rem; font-weight:700; color:var(--text-dark); margin-bottom:8px; }
.contact-val { font-size:.9rem; color:var(--primary); font-weight:600; margin-bottom:6px; }
.contact-desc { font-size:.82rem; color:var(--text-mid); }

.qr-grid { display:flex; gap:32px; justify-content:center; flex-wrap:wrap; margin-top:32px; }
.qr-item { text-align:center; }
.qr-item img { width:140px; height:140px; border-radius:var(--radius-md); border:2px solid var(--border); }
.qr-label { font-size:.82rem; color:var(--text-mid); margin-top:8px; }

/* =====================================================
   分享按钮
   ===================================================== */
.share-bar { display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-top:24px; }
.share-btn {
  padding:9px 20px; border-radius:var(--radius-xl);
  font-size:.85rem; font-weight:600; color:#fff;
  display:flex; align-items:center; gap:6px;
  transition:var(--transition);
}
.share-btn:hover { transform:translateY(-2px); filter:brightness(1.1); }
.share-wechat  { background:#07C160; }
.share-weibo   { background:#E6162D; }
.share-douyin  { background:#000; }
.share-bilibili{ background:#00A1D6; }

/* =====================================================
   面包屑
   ===================================================== */
.breadcrumb {
  padding:12px 0; font-size:.82rem; color:var(--text-mid);
  display:flex; align-items:center; gap:6px; flex-wrap:wrap;
}
.breadcrumb a { color:var(--primary); }
.breadcrumb a:hover { text-decoration:underline; }
.breadcrumb-sep { color:var(--text-light); }

/* =====================================================
   页脚
   ===================================================== */
.site-footer {
  background:linear-gradient(135deg,#1a3a1f,#0d2010);
  color:rgba(255,255,255,.8); padding:64px 24px 32px;
}
.footer-grid {
  max-width:1280px; margin:0 auto;
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px;
  margin-bottom:48px;
}
.footer-brand-col {}
.footer-logo { display:flex; align-items:center; gap:10px; margin-bottom:16px; }
.footer-logo img { width:44px; height:44px; border-radius:8px; }
.footer-logo-text { font-size:1.3rem; font-weight:800; color:#fff; }
.footer-tagline { font-size:.88rem; color:rgba(255,255,255,.65); line-height:1.7; margin-bottom:20px; }
.footer-domain { font-size:.82rem; color:var(--accent); font-weight:600; }
.footer-trust { display:flex; gap:8px; flex-wrap:wrap; margin-top:16px; }
.trust-badge {
  font-size:.72rem; background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.8); padding:3px 10px; border-radius:20px;
  border:1px solid rgba(255,255,255,.15);
}
.footer-col-title { font-size:.95rem; font-weight:700; color:#fff; margin-bottom:16px; }
.footer-links { display:flex; flex-direction:column; gap:8px; }
.footer-links a { font-size:.85rem; color:rgba(255,255,255,.65); transition:var(--transition); }
.footer-links a:hover { color:var(--accent); padding-left:4px; }
.footer-contact-item { font-size:.83rem; color:rgba(255,255,255,.65); margin-bottom:8px; }
.footer-contact-item strong { color:rgba(255,255,255,.9); }
.footer-bottom {
  max-width:1280px; margin:0 auto;
  padding-top:24px; border-top:1px solid rgba(255,255,255,.1);
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:12px;
}
.footer-copy { font-size:.82rem; color:rgba(255,255,255,.5); }
.footer-update { font-size:.82rem; color:rgba(255,255,255,.5); }
.footer-icp { font-size:.78rem; color:rgba(255,255,255,.4); }
.footer-bottom-links { display:flex; gap:16px; }
.footer-bottom-links a { font-size:.78rem; color:rgba(255,255,255,.4); transition:var(--transition); }
.footer-bottom-links a:hover { color:rgba(255,255,255,.7); }

/* =====================================================
   回到顶部
   ===================================================== */
.back-top {
  position:fixed; bottom:32px; right:32px;
  width:44px; height:44px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; font-size:1.1rem;
  display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow-md); cursor:pointer;
  opacity:0; transform:translateY(20px);
  transition:var(--transition); z-index:500;
}
.back-top.show { opacity:1; transform:translateY(0); }
.back-top:hover { transform:translateY(-4px); }

/* =====================================================
   跑马灯
   ===================================================== */
.marquee-wrap {
  background:var(--primary); overflow:hidden; padding:10px 0;
}
.marquee-text {
  display:flex; gap:48px; white-space:nowrap;
  animation:marquee 28s linear infinite;
  color:#fff; font-size:.85rem; font-weight:600;
}
.marquee-text span { flex-shrink:0; }
@keyframes marquee { from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* =====================================================
   分页
   ===================================================== */
.pagination { display:flex; gap:8px; justify-content:center; margin-top:40px; }
.page-btn {
  width:38px; height:38px; border-radius:var(--radius-sm);
  display:flex; align-items:center; justify-content:center;
  font-size:.88rem; font-weight:600; color:var(--text-mid);
  border:1px solid var(--border); background:#fff;
  cursor:pointer; transition:var(--transition);
}
.page-btn:hover, .page-btn.active {
  background:var(--primary); color:#fff; border-color:var(--primary);
}

/* =====================================================
   内页Banner
   ===================================================== */
.page-banner {
  position:relative; height:320px; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
}
.page-banner img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.page-banner::after {
  content:''; position:absolute; inset:0;
  background:rgba(0,0,0,.5);
}
.page-banner-content {
  position:relative; z-index:2; text-align:center; color:#fff;
  padding:0 24px;
}
.page-banner-title { font-size:2.2rem; font-weight:800; margin-bottom:10px; }
.page-banner-desc { font-size:1rem; color:rgba(255,255,255,.8); }

/* =====================================================
   标签云
   ===================================================== */
.tag-cloud { display:flex; gap:8px; flex-wrap:wrap; }
.tag-item {
  font-size:.8rem; padding:5px 14px; border-radius:20px;
  background:var(--primary-pale); color:var(--primary);
  border:1px solid var(--border); cursor:pointer;
  transition:var(--transition);
}
.tag-item:hover { background:var(--primary); color:#fff; }

/* =====================================================
   AI区块
   ===================================================== */
.ai-card {
  background:linear-gradient(135deg,#1a3a1f,#2d5a34);
  border-radius:var(--radius-lg); padding:40px;
  color:#fff; position:relative; overflow:hidden;
}
.ai-card::before {
  content:''; position:absolute; top:-50%; right:-20%;
  width:400px; height:400px; border-radius:50%;
  background:rgba(255,255,255,.04);
}
.ai-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:20px;
}
.ai-item {
  background:rgba(255,255,255,.08); border-radius:var(--radius-md);
  padding:24px; border:1px solid rgba(255,255,255,.12);
  transition:var(--transition);
}
.ai-item:hover { background:rgba(255,255,255,.13); transform:translateY(-3px); }
.ai-item-icon { font-size:2rem; margin-bottom:12px; }
.ai-item-title { font-size:1rem; font-weight:700; margin-bottom:8px; }
.ai-item-desc { font-size:.85rem; color:rgba(255,255,255,.75); line-height:1.6; }

/* =====================================================
   情感/社区区块
   ===================================================== */
.emotion-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:20px;
}
.emotion-card {
  background:#fff; border-radius:var(--radius-md);
  padding:24px; border-left:4px solid var(--primary);
  box-shadow:var(--shadow-sm); transition:var(--transition);
}
.emotion-card:hover { transform:translateX(4px); box-shadow:var(--shadow-md); }
.emotion-icon { font-size:1.8rem; margin-bottom:10px; }
.emotion-title { font-size:.97rem; font-weight:700; color:var(--text-dark); margin-bottom:6px; }
.emotion-desc { font-size:.85rem; color:var(--text-mid); line-height:1.6; }

/* =====================================================
   统计数字
   ===================================================== */
.stats-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
  gap:24px; text-align:center;
}
.stat-item { padding:24px 16px; }
.stat-num {
  font-size:2.4rem; font-weight:800; color:var(--primary);
  line-height:1; margin-bottom:6px;
}
.section-dark .stat-num { color:var(--accent); }
.stat-label { font-size:.88rem; color:var(--text-mid); }
.section-dark .stat-label { color:rgba(255,255,255,.7); }

/* =====================================================
   响应式
   ===================================================== */
@media (max-width:1024px) {
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .nav-links, .btn-join { display:none; }
  .menu-toggle { display:flex; }
  .nav-inner { height:60px; }
  .search-bar-wrap { margin-top:60px; }
  .hero-section { min-height:70vh; }
  .hero-title { font-size:1.8rem; }
  .hero-stats { gap:20px; }
  .section { padding:56px 16px; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .footer-bottom { flex-direction:column; text-align:center; }
  .video-grid { grid-template-columns:1fr 1fr; }
  .page-banner { height:220px; }
  .page-banner-title { font-size:1.6rem; }
}
@media (max-width:480px) {
  .video-grid { grid-template-columns:1fr; }
  .hero-btns { flex-direction:column; }
  .btn-primary, .btn-outline { text-align:center; }
}

/* =====================================================
   移动端菜单
   ===================================================== */
.mobile-menu {
  display:none; position:fixed; top:60px; left:0; right:0;
  background:#fff; border-bottom:1px solid var(--border);
  padding:16px 24px; z-index:999;
  box-shadow:var(--shadow-md);
}
.mobile-menu.open { display:block; }
.mobile-menu a {
  display:block; padding:12px 0;
  font-size:1rem; font-weight:500; color:var(--text-dark);
  border-bottom:1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom:none; }
.mobile-menu a:hover { color:var(--primary); }

/* =====================================================
   工具类
   ===================================================== */
.text-center { text-align:center; }
.text-primary { color:var(--primary); }
.text-accent  { color:var(--accent); }
.mt-8  { margin-top:8px; }
.mt-16 { margin-top:16px; }
.mt-24 { margin-top:24px; }
.mt-32 { margin-top:32px; }
.mt-48 { margin-top:48px; }
.mb-8  { margin-bottom:8px; }
.mb-16 { margin-bottom:16px; }
.mb-24 { margin-bottom:24px; }
.gap-8 { gap:8px; }
.flex  { display:flex; }
.flex-center { display:flex; align-items:center; justify-content:center; }
.flex-wrap { flex-wrap:wrap; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.hidden { display:none; }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

/* =====================================================
   动画
   ===================================================== */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(24px); }
  to   { opacity:1; transform:translateY(0); }
}
.fade-in-up { animation:fadeInUp .6s ease both; }
.delay-1 { animation-delay:.1s; }
.delay-2 { animation-delay:.2s; }
.delay-3 { animation-delay:.3s; }

/* =====================================================
   干扰标签容器（不影响布局）
   ===================================================== */
.fns34q {
  position:absolute; width:0; height:0;
  overflow:hidden; visibility:hidden; pointer-events:none;
  font-size:0; line-height:0; opacity:0;
}

/* =====================================================
   专家卡片
   ===================================================== */
.expert-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:28px;
}
.expert-card {
  background:#fff; border-radius:var(--radius-md);
  overflow:hidden; box-shadow:var(--shadow-sm);
  transition:var(--transition); display:flex; flex-direction:column;
}
.expert-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.expert-img-wrap { position:relative; aspect-ratio:3/2; overflow:hidden; }
.expert-img-wrap img { width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.expert-card:hover .expert-img-wrap img { transform:scale(1.05); }
.expert-badge {
  position:absolute; top:12px; right:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; padding:4px 12px; border-radius:20px; font-size:.78rem; font-weight:600;
}
.expert-body { padding:20px 24px; flex:1; display:flex; flex-direction:column; gap:8px; }
.expert-name { font-size:1.1rem; font-weight:800; color:var(--text-dark); }
.expert-role { font-size:.85rem; color:var(--primary); font-weight:600; }
.expert-desc { font-size:.85rem; color:var(--text-mid); line-height:1.7; flex:1; }
.expert-tags { display:flex; flex-wrap:wrap; gap:6px; }
.expert-tag {
  font-size:.75rem; background:var(--primary-pale);
  color:var(--primary); padding:3px 10px; border-radius:12px;
}
.expert-actions { display:flex; gap:8px; margin-top:4px; }
.btn-sm {
  padding:7px 16px; border-radius:var(--radius-xl);
  font-size:.82rem; font-weight:600; cursor:pointer;
  font-family:inherit; transition:var(--transition); border:none;
}
.btn-sm-primary {
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
}
.btn-sm-outline {
  background:transparent; color:var(--primary);
  border:1.5px solid var(--primary);
}
.btn-sm:hover { transform:translateY(-1px); opacity:.9; }

/* =====================================================
   About页
   ===================================================== */
.about-story {
  max-width:800px; margin:0 auto 40px;
  background:#fff; border-radius:var(--radius-md);
  padding:32px; border:1px solid var(--border);
}
.about-story p {
  font-size:.97rem; color:var(--text-mid);
  line-height:1.9; margin-bottom:14px;
}
.about-story p:last-child { margin-bottom:0; }

.contact-item {
  background:#fff; border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:14px 20px;
  font-size:.92rem; color:var(--text-dark);
}