:root{
    --red:#A8161B;          /* 主红，比海报略沉，更高端 */
    --red-deep:#7C0F13;
    --gold:#C5A052;         /* 金 */
    --gold-light:#E2CB8E;
    --ink:#1E1A17;          /* 墨黑 */
    --paper:#FBF7EF;        /* 米白纸 */
    --paper-warm:#F4EBDA;
    --line:#E4D9C4;
    --grey:#6B6258;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:"Noto Serif SC","Songti SC",serif;
    color:var(--ink);background:var(--paper);line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,.serif{font-family:"Noto Serif SC","Songti SC",serif}
  .sans{font-family:"Noto Sans SC","PingFang SC",sans-serif}

  /* ---------- 顶部导航 ---------- */
  header{
    position:sticky;top:0;z-index:100;background:rgba(251,247,239,.94);
    backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
  }
  .nav{max-width:1200px;margin:0 auto;padding:14px 28px;display:flex;align-items:center;justify-content:space-between}
  .brand{display:flex;align-items:center;gap:12px;cursor:pointer}
  .brand .mark{width:42px;height:42px;background:var(--red);color:#fff;display:grid;place-items:center;font-size:24px;font-weight:700;border-radius:4px;font-family:"Noto Serif SC",serif}
  .brand .txt b{font-size:20px;letter-spacing:2px;display:block;line-height:1.2}
  .brand .txt span{font-size:11px;letter-spacing:3px;color:var(--gold);font-family:"Noto Sans SC",sans-serif}
  nav.menu{display:flex;gap:30px}
  nav.menu a{font-family:"Noto Sans SC",sans-serif;font-size:15px;color:var(--ink);text-decoration:none;cursor:pointer;position:relative;padding:4px 0;transition:color .2s}
  nav.menu a:hover,nav.menu a.active{color:var(--red)}
  nav.menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold)}
  .nav-cta{font-family:"Noto Sans SC",sans-serif;font-size:14px;background:var(--red);color:#fff;padding:9px 18px;border-radius:3px;text-decoration:none;white-space:nowrap}
  .menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--red);cursor:pointer}

  .page{display:none;animation:fade .4s ease}
  .page.active{display:block}
  @keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

  /* ---------- HERO ---------- */
  .hero{position:relative;background:linear-gradient(135deg,#8E1014 0%,#A8161B 55%,#7C0F13 100%);color:#fff;overflow:hidden}
  .hero::before{content:"";position:absolute;inset:0;background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 22px);opacity:.6}
  .hero-seal{position:absolute;right:-60px;top:50%;transform:translateY(-50%);font-size:380px;color:rgba(197,160,82,.10);font-weight:700;font-family:"Noto Serif SC",serif;user-select:none;line-height:1}
  .hero-inner{max-width:1200px;margin:0 auto;padding:96px 28px 88px;position:relative;z-index:2}
  .hero .eyebrow{font-family:"Noto Sans SC",sans-serif;letter-spacing:6px;font-size:13px;color:var(--gold-light);margin-bottom:24px;display:flex;align-items:center;gap:12px}
  .hero .eyebrow::before{content:"";width:40px;height:1px;background:var(--gold)}
  .hero h1{font-size:60px;line-height:1.25;letter-spacing:3px;margin-bottom:8px;font-weight:700}
  .hero h1 .em{color:var(--gold-light)}
  .hero .sub{font-size:21px;color:rgba(255,255,255,.86);margin:22px 0 12px;letter-spacing:1px;font-weight:300}
  .hero .desc{font-family:"Noto Sans SC",sans-serif;font-size:15px;color:rgba(255,255,255,.7);max-width:560px;margin-bottom:38px;line-height:1.9}
  .hero-btns{display:flex;gap:16px;flex-wrap:wrap}
  .btn-gold{background:linear-gradient(135deg,var(--gold-light),var(--gold));color:var(--red-deep);font-family:"Noto Sans SC",sans-serif;font-weight:500;padding:14px 30px;border-radius:3px;text-decoration:none;font-size:15px;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 6px 20px rgba(0,0,0,.18)}
  .btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.26)}
  .btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);font-family:"Noto Sans SC",sans-serif;padding:14px 30px;border-radius:3px;text-decoration:none;font-size:15px;cursor:pointer;transition:background .2s}
  .btn-ghost:hover{background:rgba(255,255,255,.1)}
  .hero-stats{display:flex;gap:48px;margin-top:60px;flex-wrap:wrap}
  .hero-stats .s b{font-size:40px;color:var(--gold-light);font-weight:700;display:block;line-height:1}
  .hero-stats .s span{font-family:"Noto Sans SC",sans-serif;font-size:13px;color:rgba(255,255,255,.7);letter-spacing:1px}

  /* ---------- 通用 section ---------- */
  section.block{max-width:1200px;margin:0 auto;padding:84px 28px}
  .sec-head{text-align:center;margin-bottom:54px}
  .sec-head .eb{font-family:"Noto Sans SC",sans-serif;letter-spacing:5px;font-size:12px;color:var(--gold);margin-bottom:12px}
  .sec-head h2{font-size:36px;letter-spacing:2px;position:relative;display:inline-block;padding-bottom:16px}
  .sec-head h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:48px;height:3px;background:var(--red)}
  .sec-head p{font-family:"Noto Sans SC",sans-serif;color:var(--grey);font-size:15px;margin-top:16px}

  /* 信任标背书条 */
  .trust-bar{background:var(--paper-warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .trust-inner{max-width:1200px;margin:0 auto;padding:30px 28px;display:flex;justify-content:center;gap:60px;flex-wrap:wrap;text-align:center}
  .trust-inner .t{font-family:"Noto Sans SC",sans-serif}
  .trust-inner .t b{color:var(--red);font-size:15px;display:block;margin-bottom:2px}
  .trust-inner .t span{font-size:12.5px;color:var(--grey)}

  /* ---------- 专家卡片 ---------- */
  .docs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .doc-card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;transition:transform .25s,box-shadow .25s;cursor:pointer;display:flex;flex-direction:column}
  .doc-card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(124,15,19,.12)}
  .doc-top{background:linear-gradient(135deg,#A8161B,#7C0F13);padding:22px 18px 16px;text-align:center;position:relative}
  .doc-badge{position:absolute;top:10px;right:10px;background:var(--gold);color:var(--red-deep);font-family:"Noto Sans SC",sans-serif;font-size:10.5px;font-weight:600;padding:3px 8px;border-radius:2px}
  .doc-avatar{width:84px;height:84px;border-radius:50%;background:var(--paper-warm);margin:0 auto 12px;display:grid;place-items:center;font-size:30px;color:var(--red);font-weight:700;border:3px solid var(--gold-light);overflow:hidden;position:relative}
  .doc-avatar img{width:100%;height:100%;object-fit:cover;object-position:center top}
  .doc-top h3{color:#fff;font-size:21px;letter-spacing:2px}
  .doc-top .title{font-family:"Noto Sans SC",sans-serif;font-size:12px;color:var(--gold-light);margin-top:3px;letter-spacing:1px}
  .doc-body{padding:16px 18px 20px;flex:1;display:flex;flex-direction:column}
  .doc-tagline{font-size:14px;color:var(--ink);line-height:1.7;margin-bottom:12px;font-weight:500}
  .doc-skill{font-family:"Noto Sans SC",sans-serif;font-size:12.5px;color:var(--grey);line-height:1.75;flex:1}
  .doc-skill b{color:var(--red);font-weight:600}
  .doc-more{font-family:"Noto Sans SC",sans-serif;font-size:13px;color:var(--red);margin-top:14px;display:inline-flex;align-items:center;gap:5px}

  /* ---------- 特色诊疗 ---------- */
  .feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .feat-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:32px;position:relative;overflow:hidden;transition:border-color .2s,box-shadow .2s;cursor:pointer}
  .feat-card:hover{border-color:var(--gold);box-shadow:0 10px 28px rgba(0,0,0,.06)}
  .feat-card .num{position:absolute;right:22px;top:14px;font-size:64px;color:var(--paper-warm);font-weight:700;font-family:"Noto Serif SC",serif;line-height:1}
  .feat-card h3{font-size:24px;letter-spacing:1px;margin-bottom:6px;position:relative}
  .feat-card .zh-tag{font-family:"Noto Sans SC",sans-serif;font-size:12px;color:var(--gold);letter-spacing:2px;margin-bottom:14px}
  .feat-card p{font-family:"Noto Sans SC",sans-serif;font-size:14px;color:var(--grey);line-height:1.85;margin-bottom:16px;position:relative}
  .feat-docs{display:flex;flex-wrap:wrap;gap:7px;position:relative}
  .feat-docs span{font-family:"Noto Sans SC",sans-serif;font-size:12px;background:var(--paper-warm);color:var(--red);padding:4px 11px;border-radius:20px;border:1px solid var(--line)}

  /* ---------- 院内特色/价值条 ---------- */
  .why{background:var(--ink);color:#fff}
  .why-inner{max-width:1200px;margin:0 auto;padding:80px 28px}
  .why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:48px}
  .why-item{text-align:center}
  .why-item .ic{width:60px;height:60px;border:1.5px solid var(--gold);border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;font-size:26px;color:var(--gold-light)}
  .why-item h4{font-size:19px;letter-spacing:1px;margin-bottom:8px}
  .why-item p{font-family:"Noto Sans SC",sans-serif;font-size:13px;color:rgba(255,255,255,.62);line-height:1.8}
  .why .sec-head h2{color:#fff}
  .why .sec-head .eb{color:var(--gold-light)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;margin:0 auto}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:6px;margin-bottom:14px;overflow:hidden}
  .faq-q{font-family:"Noto Sans SC",sans-serif;font-size:16px;font-weight:500;padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
  .faq-q .plus{color:var(--red);font-size:22px;transition:transform .25s;flex-shrink:0}
  .faq-item.open .plus{transform:rotate(45deg)}
  .faq-a{font-family:"Noto Sans SC",sans-serif;font-size:14.5px;color:var(--grey);line-height:1.9;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 24px}
  .faq-item.open .faq-a{max-height:340px;padding:0 24px 22px}

  /* ---------- 内页通用 hero ---------- */
  .page-hero{background:linear-gradient(135deg,#8E1014,#7C0F13);color:#fff;padding:64px 28px;text-align:center;position:relative;overflow:hidden}
  .page-hero::after{content:"泰";position:absolute;right:40px;bottom:-40px;font-size:200px;color:rgba(197,160,82,.10);font-weight:700}
  .page-hero .eb{font-family:"Noto Sans SC",sans-serif;letter-spacing:5px;font-size:12px;color:var(--gold-light);margin-bottom:14px}
  .page-hero h1{font-size:42px;letter-spacing:3px}
  .page-hero p{font-family:"Noto Sans SC",sans-serif;color:rgba(255,255,255,.78);margin-top:14px;font-size:15px}

  /* 专家详情（内页示例）*/
  .detail{max-width:980px;margin:0 auto;padding:60px 28px}
  .detail-top{display:flex;gap:36px;align-items:flex-start;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:36px;margin-bottom:36px}
  .detail-avatar{width:150px;height:150px;border-radius:8px;background:linear-gradient(135deg,#A8161B,#7C0F13);display:grid;place-items:center;font-size:56px;color:var(--gold-light);font-weight:700;flex-shrink:0;border:3px solid var(--gold);overflow:hidden}
  .detail-avatar img{width:100%;height:100%;object-fit:cover;object-position:center top}
  .detail-info{flex:1;min-width:260px}
  .detail-info h1{font-size:34px;letter-spacing:2px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
  .detail-info h1 .tt{font-family:"Noto Sans SC",sans-serif;font-size:14px;background:var(--red);color:#fff;padding:4px 12px;border-radius:3px;font-weight:400}
  .detail-info .creds{font-family:"Noto Sans SC",sans-serif;color:var(--grey);font-size:14.5px;line-height:2;margin-top:14px}
  .detail-info .creds b{color:var(--red)}
  .detail-section{margin-bottom:30px}
  .detail-section h3{font-size:20px;letter-spacing:1px;margin-bottom:14px;padding-left:14px;border-left:4px solid var(--red)}
  .skill-tags{display:flex;flex-wrap:wrap;gap:9px}
  .skill-tags span{font-family:"Noto Sans SC",sans-serif;font-size:13px;background:var(--paper-warm);border:1px solid var(--line);color:var(--ink);padding:6px 14px;border-radius:4px}
  .detail-book{background:var(--paper-warm);border:1px solid var(--gold-light);border-radius:8px;padding:26px;margin-top:8px;font-family:"Noto Sans SC",sans-serif}
  .detail-book h4{font-size:17px;color:var(--red);margin-bottom:12px}
  .detail-book .row{font-size:14px;color:var(--ink);margin-bottom:7px}
  .detail-book .row b{color:var(--grey);font-weight:400;display:inline-block;width:72px}

  /* ---------- 页脚 ---------- */
  footer{background:var(--red-deep);color:rgba(255,255,255,.8);font-family:"Noto Sans SC",sans-serif}
  .foot-inner{max-width:1200px;margin:0 auto;padding:56px 28px 30px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
  .foot-inner h5{color:var(--gold-light);font-size:15px;margin-bottom:18px;letter-spacing:1px}
  .foot-inner a{display:block;color:rgba(255,255,255,.72);text-decoration:none;font-size:13.5px;margin-bottom:10px;cursor:pointer}
  .foot-inner a:hover{color:#fff}
  .foot-brand b{font-size:22px;color:#fff;letter-spacing:2px}
  .foot-brand p{font-size:13px;line-height:1.9;margin-top:14px;color:rgba(255,255,255,.6)}
  .foot-contact .row{font-size:13.5px;margin-bottom:10px;color:rgba(255,255,255,.78)}
  .foot-contact .row b{color:var(--gold-light)}
  .foot-bottom{border-top:1px solid rgba(255,255,255,.14);text-align:center;padding:18px;font-size:12px;color:rgba(255,255,255,.5)}

  /* 浮动预约 */
  .float-cta{position:fixed;right:22px;bottom:24px;z-index:90;background:var(--red);color:#fff;font-family:"Noto Sans SC",sans-serif;padding:14px 20px;border-radius:40px;box-shadow:0 8px 24px rgba(124,15,19,.36);cursor:pointer;font-size:14px;display:flex;align-items:center;gap:8px;border:1px solid var(--gold)}

  @media(max-width:1000px){
    .docs-grid{grid-template-columns:repeat(2,1fr)}
    .why-grid{grid-template-columns:repeat(2,1fr)}
    .foot-inner{grid-template-columns:1fr 1fr}
  }
  @media(max-width:680px){
    nav.menu{display:none}
    .menu-toggle{display:block}
    nav.menu.show{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--paper);padding:16px 28px;border-bottom:1px solid var(--line);gap:14px}
    .hero h1{font-size:38px}.hero-seal{font-size:220px}
    .hero .sub{font-size:17px}
    .sec-head h2{font-size:27px}
    .docs-grid,.feat-grid{grid-template-columns:1fr}
    .hero-stats{gap:28px}
    .foot-inner{grid-template-columns:1fr}
    .detail-top{flex-direction:column}
  }