1|/* ==========================================
     2|   Zepbound CN - 替西帕肽中文信息站
     3|   Modern responsive CSS (2026 SEO optimized)
     4|   ========================================== */
     5|
     6|/* CSS Custom Properties */
     7|:root {
     8|  --primary: #006298;
     9|  --primary-dark: #004a73;
    10|  --primary-light: #e8f4fb;
    11|  --accent: #6b3fa0;
    12|  --accent-light: #f3edf9;
    13|  --gradient-blue: linear-gradient(135deg, #006298 0%, #0088cc 100%);
    14|  --gradient-purple: linear-gradient(135deg, #6b3fa0 0%, #9b6fd4 100%);
    15|  --gradient-teal: linear-gradient(135deg, #006298 0%, #00a896 100%);
    16|  --text: #1a1a2e;
    17|  --text-light: #555;
    18|  --text-muted: #888;
    19|  --bg: #ffffff;
    20|  --bg-alt: #f8f9fb;
    21|  --bg-card: #ffffff;
    22|  --border: #e0e4ea;
    23|  --border-light: #eef1f5;
    24|  --shadow: 0 2px 12px rgba(0,0,0,0.08);
    25|  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    26|  --radius: 12px;
    27|  --radius-sm: 8px;
    28|  --radius-lg: 20px;
    29|  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    30|  --header-h: 72px;
    31|  --max-w: 1200px;
    32|  --transition: 0.25s ease;
    33|}
    34|
    35|/* Reset */
    36|*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    37|html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    38|body{font-family:var(--font);color:var(--text);line-height:1.7;background:var(--bg);-webkit-font-smoothing:antialiased}
    39|img{max-width:100%;height:auto;display:block}
    40|a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
    41|a:hover{color:var(--primary-dark)}
    42|ul,ol{list-style:none}
    43|button{cursor:pointer;font-family:inherit}
    44|.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
    45|
    46|/* Typography */
    47|h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text)}
    48|h1{font-size:clamp(2rem, 4vw, 3rem);margin-bottom:1rem}
    49|h2{font-size:clamp(1.5rem, 3vw, 2.2rem);margin-bottom:0.75rem}
    50|h3{font-size:clamp(1.2rem, 2vw, 1.6rem);margin-bottom:0.5rem}
    51|p{margin-bottom:1rem}
    52|.section-title{text-align:center;margin-bottom:3rem}
    53|.section-title h2{margin-bottom:0.5rem}
    54|.section-title p{color:var(--text-light);font-size:1.1rem;max-width:700px;margin:0 auto}
    55|
    56|/* ===== HEADER ===== */
    57|.header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--header-h);display:flex;align-items:center}
    58|.header .container{display:flex;align-items:center;justify-content:space-between;width:100%}
    59|.header-logo{font-size:1.5rem;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:8px}
    60|.header-logo span{background:var(--gradient-blue);color:#fff;padding:4px 12px;border-radius:6px;font-size:0.85rem}
    61|.header-logo:hover{color:var(--primary)}
    62|.nav{display:flex;align-items:center;gap:4px}
    63|.nav a, .nav .dropdown>span{padding:8px 16px;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:500;color:var(--text-light);transition:all var(--transition);display:block;white-space:nowrap}
    64|.nav a:hover, .nav .dropdown:hover>span{background:var(--primary-light);color:var(--primary)}
    65|.nav .dropdown{position:relative}
    66|.nav .dropdown-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);min-width:200px;padding:8px 0;z-index:100}
    67|.nav .dropdown:hover .dropdown-menu{display:block}
    68|.nav .dropdown-menu a{display:block;padding:10px 20px;border-radius:0;font-size:0.9rem}
    69|.nav .dropdown-menu a:hover{background:var(--bg-alt)}
    70|.cta-btn{background:var(--gradient-blue);color:#fff!important;padding:10px 24px!important;border-radius:50px!important;font-weight:600!important;transition:transform var(--transition),box-shadow var(--transition)!important}
    71|.cta-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(0,98,152,0.3)}
    72|.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:var(--text);padding:4px}
    73|
    74|/* ===== HERO ===== */
    75|.hero{padding:80px 0 60px;background:var(--gradient-blue);color:#fff;position:relative;overflow:hidden}
    76|.hero::after{content:'';position:absolute;right:-100px;bottom:-100px;width:400px;height:400px;background:rgba(255,255,255,0.05);border-radius:50%}
    77|.hero .container{position:relative;z-index:1}
    78|.hero h1{color:#fff;font-size:clamp(2rem, 5vw, 3.5rem);margin-bottom:1.2rem}
    79|.hero p{font-size:1.2rem;opacity:0.9;max-width:600px;margin-bottom:2rem}
    80|.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
    81|.hero-btn-primary{background:#fff;color:var(--primary);padding:14px 32px;border-radius:50px;font-weight:700;font-size:1rem;transition:all var(--transition);display:inline-block}
    82|.hero-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.2);color:var(--primary)}
    83|.hero-btn-secondary{background:rgba(255,255,255,0.15);color:#fff;padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;border:1px solid rgba(255,255,255,0.3);transition:all var(--transition);display:inline-block}
    84|.hero-btn-secondary:hover{background:rgba(255,255,255,0.25);color:#fff}
    85|
    86|/* ===== SAFETY BANNER ===== */
    87|.safety-banner{background:#fff3cd;border:1px solid #ffc107;border-left:4px solid #ff9800;padding:16px 20px;border-radius:var(--radius-sm);margin:20px 0}
    88|.safety-banner strong{color:#e65100}
    89|.safety-banner p{margin-bottom:0;font-size:0.9rem}
    90|
    91|/* ===== CARDS ===== */
    92|.cards-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(320px, 1fr));gap:24px}
    93|.card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:32px;transition:all var(--transition)}
    94|.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
    95|.card-icon{width:56px;height:56px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:16px}
    96|.card-icon.blue{background:var(--primary-light);color:var(--primary)}
    97|.card-icon.purple{background:var(--accent-light);color:var(--accent)}
    98|.card h3{margin-bottom:0.5rem}
    99|.card p{color:var(--text-light);font-size:0.95rem;margin-bottom:0}
   100|.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-weight:600;font-size:0.9rem}
   101|
   102|/* ===== CONTENT SECTION ===== */
   103|.section{padding:80px 0}
   104|.section.bg-alt{background:var(--bg-alt)}
   105|.section.bg-gradient{background:var(--gradient-blue);color:#fff}
   106|.section.bg-gradient h2,.section.bg-gradient h3{color:#fff}
   107|.section.bg-gradient p{color:rgba(255,255,255,0.85)}
   108|
   109|/* Info blocks */
   110|.info-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:60px}
   111|.info-block.reverse{direction:rtl}
   112|.info-block.reverse>*{direction:ltr}
   113|.info-block-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
   114|.info-block-content h3{font-size:1.8rem;margin-bottom:1rem}
   115|.info-block-content p{color:var(--text-light);font-size:1.05rem}
   116|
   117|/* Stat cards */
   118|.stat-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:20px}
   119|.stat-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:28px;text-align:center}
   120|.stat-card .stat-number{font-size:2.5rem;font-weight:800;background:var(--gradient-blue);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
   121|.stat-card .stat-label{color:var(--text-light);font-size:0.9rem;margin-top:4px}
   122|
   123|/* FAQ */
   124|.faq-list{max-width:800px;margin:0 auto}
   125|.faq-item{border:1px solid var(--border-light);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
   126|.faq-question{padding:20px 24px;background:var(--bg-alt);font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1.05rem}
   127|.faq-question:hover{background:var(--primary-light)}
   128|.faq-answer{padding:0 24px 20px;color:var(--text-light);font-size:0.95rem;line-height:1.8}
   129|.faq-answer p{margin-bottom:0.5rem}
   130|
   131|/* Steps */
   132|.steps{display:grid;grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));gap:30px}
   133|.step{text-align:center;padding:24px}
   134|.step-number{width:48px;height:48px;background:var(--gradient-blue);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 16px}
   135|.step h4{margin-bottom:0.5rem}
   136|
   137|/* Table */
   138|.data-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:0.95rem}
   139|.data-table th{background:var(--primary);color:#fff;padding:14px 16px;text-align:left;font-weight:600}
   140|.data-table td{padding:12px 16px;border-bottom:1px solid var(--border-light)}
   141|.data-table tr:nth-child(even){background:var(--bg-alt)}
   142|.data-table tr:hover{background:var(--primary-light)}
   143|
   144|/* Breadcrumb */
   145|.breadcrumb{padding:16px 0;font-size:0.85rem;color:var(--text-muted)}
   146|.breadcrumb a{color:var(--text-muted)}
   147|.breadcrumb a:hover{color:var(--primary)}
   148|.breadcrumb span{color:var(--text)}
   149|
   150|/* Page banner */
   151|.page-banner{background:var(--gradient-teal);color:#fff;padding:60px 0;text-align:center}
   152|.page-banner h1{color:#fff}
   153|.page-banner p{color:rgba(255,255,255,0.9);font-size:1.1rem;max-width:700px;margin:0 auto}
   154|
   155|/* Tabs */
   156|.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:30px;flex-wrap:wrap}
   157|.tab-btn{padding:12px 24px;background:none;border:none;font-weight:600;color:var(--text-light);font-size:0.95rem;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all var(--transition)}
   158|.tab-btn:hover{color:var(--primary)}
   159|.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}
   160|
   161|/* Alert boxes */
   162|.alert{padding:16px 20px;border-radius:var(--radius-sm);margin:20px 0;font-size:0.95rem}
   163|.alert-info{background:var(--primary-light);border:1px solid #b3d9f0;color:var(--primary-dark)}
   164|.alert-warning{background:#fff3cd;border:1px solid #ffc107;color:#856404}
   165|.alert-danger{background:#fde8e8;border:1px solid #f5c6cb;color:#721c24}
   166|
   167|/* ===== FOOTER ===== */
   168|.footer{background:#1a1a2e;color:rgba(255,255,255,0.7);padding:60px 0 30px}
   169|.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
   170|.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px}
   171|.footer-col a{display:block;color:rgba(255,255,255,0.6);font-size:0.9rem;padding:4px 0;transition:color var(--transition)}
   172|.footer-col a:hover{color:#fff}
   173|.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:0.85rem}
   174|.disclaimer{font-size:0.8rem;color:rgba(255,255,255,0.4);line-height:1.6;margin-top:16px}
   175|
   176|/* ===== RESPONSIVE ===== */
   177|@media (max-width: 1024px) {
   178|  .info-block{grid-template-columns:1fr;gap:32px}
   179|  .footer-grid{grid-template-columns:1fr 1fr}
   180|}
   181|@media (max-width: 768px) {
   182|  .header{height:auto;padding:12px 0}
   183|  .nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg)}
   184|  .nav.open{display:flex}
   185|  .nav .dropdown-menu{position:static;box-shadow:none;border:none;padding-left:16px}
   186|  .mobile-menu-btn{display:block}
   187|  .hero{padding:50px 0 40px}
   188|  .hero h1{font-size:1.8rem}
   189|  .hero p{font-size:1rem}
   190|  .section{padding:50px 0}
   191|  .cards-grid{grid-template-columns:1fr}
   192|  .steps{grid-template-columns:1fr}
   193|  .stat-grid{grid-template-columns:repeat(2,1fr)}
   194|  .footer-grid{grid-template-columns:1fr;gap:30px}
   195|  .footer-bottom{flex-direction:column;text-align:center}
   196|  .data-table{font-size:0.8rem}
   197|  .data-table th,.data-table td{padding:8px}
   198|}
   199|@media (max-width: 480px) {
   200|  .container{padding:0 16px}
   201|  .hero-btn-primary,.hero-btn-secondary{padding:12px 24px;font-size:0.9rem}
   202|  .stat-grid{grid-template-columns:1fr}
   203|}
   204|
   205|/* Print */
   206|@media print {
   207|  .header,.footer,.hero,.nav,.mobile-menu-btn{display:none}
   208|  body{color:#000}
   209|  .section{padding:20px 0}
   210|}
   211|
   212|/* Accessibility */
   213|.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
   214|:focus-visible{outline:3px solid var(--primary);outline-offset:2px}
   215|.skip-link{position:absolute;top:-100px;left:0;background:var(--primary);color:#fff;padding:8px 16px;z-index:9999}
   216|.skip-link:focus{top:0}
   217|
   218|/* Animations */
   219|@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
   220|.animate{animation:fadeInUp 0.5s ease forwards}
   221|
/* ==========================================
   企业微信客服浮动图标
   ========================================== */
.wecom-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  box-shadow: 0 4px 18px rgba(0,0,0,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  background: #07C160;
  text-decoration: none;
}
.wecom-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 26px rgba(7,193,96,0.35);
}
.wecom-float svg {
  width: 32px;
  height: 32px;
  display: block;
}
.wecom-float::after {
  content: '微信客服';
  position: absolute;
  right: 68px;
  top: 50%;
  transform: translateY(-50%);
  background: #333;
  color: #fff;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.wecom-float:hover::after {
  opacity: 1;
}
@media (max-width: 768px) {
  .wecom-float {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
  }
  .wecom-float svg {
    width: 28px;
    height: 28px;
  }
}