/* ============================================================
   申平堂中医馆 · 官网样式 v2「静而有质」
   配色取自官方 LOGO：深绛红 + 金铜（降饱和处理，提升质感）
   版式：编辑式排版 / 大留白 / 细线分隔 / 克制用金
   ============================================================ */
:root{
  /* 绛红系 */
  --brand:#3E1F1F;          /* 主绛红 —— 比 LOGO 更深沉 */
  --brand-2:#552B2B;
  --brand-d:#241212;
  --brand-i:#6B3838;

  /* 金铜系（分三档用途，避免滥用高饱和金） */
  --gold:#B08A46;           /* 线条 / 装饰 */
  --gold-t:#8A6A2F;         /* 浅底文字（对比度达标） */
  --gold-l:#D9B87C;         /* 深底文字 */
  --gold-b:#E4A860;         /* LOGO 本色，极少量点缀 */

  /* 中性（偏暖） */
  --ink:#1A1A1C;
  --ink-2:#3D3D42;
  --muted:#6E6E76;
  --muted-2:#9C9CA4;
  --line:#E8E2D7;
  --line-2:#F1ECE3;

  /* 底 */
  --bg:#FFFFFF;
  --paper:#FAF7F2;
  --paper-2:#F3EDE3;
  --dark:#241212;

  --max:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  --serif:"Times New Roman",Georgia,"Songti SC",serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);
  font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--gold-t)}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.02em}
p{margin:0 0 14px}
ul{margin:12px 0;padding-left:20px}
li{margin:8px 0}
.hide{display:none !important}

.wrap{max-width:var(--max);margin:0 auto;padding:0 32px}
.narrow{max-width:880px;margin:0 auto}

/* 拉丁小标（数字与英文用衬线，与中文无衬线形成层次） */
.kicker,.hero .tagline,.page-head .kicker,.hero-pos span,.card-idx,.cell .num,.step b{
  font-family:var(--serif);font-variant-numeric:tabular-nums;
}

/* ============ 顶部导航 ============ */
.nav{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line-2);
}
.nav-in{max-width:var(--max);margin:0 auto;padding:0 32px;height:80px;display:flex;align-items:center}
.brand{display:flex;align-items:center;flex:0 0 auto;position:relative;padding-right:24px}
.brand img{height:42px;width:auto}
.brand::after{
  content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:1px;height:26px;background:var(--line);
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  padding:10px 18px;font-size:14.5px;font-weight:500;color:var(--ink-2);
  position:relative;letter-spacing:.02em;
}
.nav-links a::after{
  content:"";position:absolute;left:18px;right:18px;bottom:2px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .34s var(--ease);
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.cur{color:var(--brand);font-weight:600}
.nav-links a.cur::after{transform:scaleX(1)}
.nav-toggle{
  display:none;margin-left:auto;border:1px solid var(--line);background:#fff;
  padding:10px 15px;font-size:14px;cursor:pointer;color:var(--ink-2);font-family:inherit;
  align-items:center;gap:9px;
}
.nav-toggle svg{width:17px;height:11px;display:block}

/* ============ 首屏 ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(155deg,#1F0F0F 0%,#3E1F1F 46%,#5A2E2E 100%);
}
/* 斜向细纹，增加织物质感 */
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.028) 0 1px,transparent 1px 7px);
}
/* 金色光晕 */
.hero::after{
  content:"";position:absolute;right:-16%;top:-30%;width:820px;height:820px;border-radius:50%;
  background:radial-gradient(circle at 45% 45%,rgba(217,184,124,.20),transparent 60%);
  pointer-events:none;
}
/* 印章水印（纯字形剪影） */
.hero .seal{
  position:absolute;right:7%;top:52%;transform:translateY(-50%);
  width:330px;height:auto;opacity:.06;
  pointer-events:none;z-index:0;
}
/* 只设纵向内边距，横向交给 .wrap（否则简写会覆盖 .wrap 的左右留白） */
.hero-in{position:relative;z-index:1;padding-top:112px}
.hero .tagline{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.36em;
  color:var(--gold-l);text-transform:uppercase;margin-bottom:30px;
  padding-left:52px;position:relative;
}
.hero .tagline::before{
  content:"";position:absolute;left:0;top:50%;width:38px;height:1px;background:var(--gold-l);
}
.hero h1{
  font-size:clamp(40px,5.4vw,66px);line-height:1.14;font-weight:700;
  letter-spacing:-.03em;margin-bottom:26px;max-width:800px;
}
.hero h1 em{font-style:normal;color:var(--gold-b)}
.hero-pos{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.hero-pos span{
  display:inline-block;font-size:13px;letter-spacing:.14em;font-weight:600;
  color:var(--gold-l);border:1px solid rgba(217,184,124,.42);
  padding:7px 18px;
}
.hero .lead{font-size:17px;line-height:2.05;color:rgba(255,255,255,.72);max-width:620px}
.hero-acts{display:flex;gap:14px;flex-wrap:wrap;margin:46px 0 0}
.hero-stats{
  position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:78px;border-top:1px solid rgba(255,255,255,.16);padding:38px 0 44px;
}
.hero-stats div{padding-left:26px;border-left:1px solid rgba(255,255,255,.13)}
.hero-stats div:first-child{border-left:0;padding-left:0}
.hero-stats div b{
  display:block;font-family:var(--serif);font-size:38px;font-weight:400;
  color:var(--gold-l);letter-spacing:-.01em;line-height:1.15;
}
.hero-stats div span{font-size:12.5px;color:rgba(255,255,255,.5);letter-spacing:.16em}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border:1px solid transparent;padding:15px 34px;
  font-size:14.5px;font-weight:600;font-family:inherit;cursor:pointer;
  transition:all .3s var(--ease);letter-spacing:.04em;
}
.btn i{font-style:normal;transition:transform .3s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-p{background:var(--brand);color:#fff}
.btn-p:hover{background:var(--brand-2);color:#fff;box-shadow:0 12px 30px rgba(62,31,31,.26)}
.btn-gold{background:var(--gold);color:#241212}
.btn-gold:hover{background:var(--gold-l);color:#241212;box-shadow:0 12px 30px rgba(176,138,70,.30)}
.btn-o{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-o:hover{background:#fff;color:var(--brand);border-color:#fff}
.btn-line{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-line:hover{background:var(--brand);color:#fff}
.btn:active{transform:translateY(1px)}

/* ============ 区块 ============ */
section{padding:108px 0;position:relative}
.sec-head{margin-bottom:56px}
.sec-head.center{text-align:center}
.sec-head .kicker{
  display:block;font-size:11.5px;font-weight:600;letter-spacing:.34em;color:var(--gold-t);
  text-transform:uppercase;margin-bottom:18px;
}
.sec-head .kicker::before{
  content:"";display:block;width:34px;height:1px;background:var(--gold);margin:0 0 16px;
}
.sec-head.center .kicker::before{margin:0 auto 16px}
.sec-head h2{font-size:clamp(28px,3.3vw,38px);letter-spacing:-.03em;margin-bottom:18px}
.sec-head p{color:var(--muted);font-size:16.5px;max-width:660px;line-height:1.95}
.sec-head.center p{margin:0 auto}
.alt{background:var(--paper)}
.dark{background:var(--dark);color:#fff}
.dark .sec-head h2{color:#fff}
.dark .sec-head .kicker{color:var(--gold-l)}
.dark .sec-head p{color:rgba(255,255,255,.6)}

/* ============ 细线网格 ============ */
.grid{display:grid;gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.cell{
  background:var(--bg);padding:46px 38px 50px;position:relative;
  transition:background .3s var(--ease);
}
.cell::before{
  content:"";position:absolute;left:0;top:0;height:1px;width:0;background:var(--gold);
  transition:width .5s var(--ease);
}
.cell:hover{background:var(--paper)}
.cell:hover::before{width:100%}
.alt .cell{background:var(--paper)}
.alt .cell:hover{background:#fff}
.cell .num{
  font-size:13px;font-weight:600;color:var(--gold-t);letter-spacing:.2em;margin-bottom:22px;display:block;
}
.cell h3{font-size:19px;margin-bottom:14px;letter-spacing:-.015em}
.cell p{color:var(--muted);font-size:15px;margin:0;line-height:1.9}
/* 几何线条标记（取代 emoji 图标） */
.cell .mk,.card .mk{width:34px;height:34px;color:var(--gold);display:block;margin-bottom:24px}
.card .mk{width:30px;height:30px}
.cell .mk *,.card .mk *{vector-effect:non-scaling-stroke}

/* ============ 可点击入口卡 ============ */
.cards{display:grid;gap:22px}
.cards.g4 .card{padding:38px 30px 34px}
.card{
  background:#fff;border:1px solid var(--line);padding:44px 38px 40px;
  transition:all .34s var(--ease);display:block;color:inherit;position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--gold);
  transition:width .5s var(--ease);
}
.card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:0 22px 52px rgba(62,31,31,.10);color:inherit}
.card:hover::before{width:100%}
.card-idx{
  display:block;font-size:12.5px;font-weight:600;color:var(--gold-t);letter-spacing:.22em;margin-bottom:22px;
}
.card h3{font-size:19px;margin-bottom:12px;letter-spacing:-.015em}
.card p{color:var(--muted);font-size:14.5px;margin:0 0 26px;line-height:1.85}
.card .more{
  font-size:13.5px;font-weight:600;color:var(--brand);letter-spacing:.06em;
  display:inline-flex;align-items:center;gap:8px;
}
.card .more::after{content:"→";transition:transform .3s var(--ease)}
.card:hover .more{color:var(--gold-t)}
.card:hover .more::after{transform:translateX(5px)}

/* ============ 正文 ============ */
.prose{font-size:16.5px;color:var(--ink-2);line-height:2.05}
.prose h3{
  font-size:23px;color:var(--brand);margin:60px 0 22px;letter-spacing:-.02em;
  padding-bottom:16px;border-bottom:1px solid var(--line);line-height:1.45;position:relative;
}
.prose h3::after{
  content:"";position:absolute;left:0;bottom:-1px;width:56px;height:1px;background:var(--gold);
}
.prose h3:first-child{margin-top:0}
.prose h4{font-size:17px;color:var(--ink);margin:36px 0 14px;letter-spacing:-.01em}
.prose strong{color:var(--brand);font-weight:700}
.prose ul li{color:var(--ink-2)}
.quote{
  border-left:1px solid var(--gold);background:var(--paper);
  padding:30px 34px;margin:34px 0;font-size:16.5px;line-height:2;color:var(--ink-2);
}
.quote b{color:var(--brand)}
.note{
  background:var(--paper);border-left:2px solid var(--line);
  padding:24px 30px;margin:34px 0;font-size:14px;color:var(--muted);line-height:1.95;
}
.note strong{color:var(--brand)}

/* ============ 创始人 ============ */
.person{display:grid;grid-template-columns:330px 1fr;gap:64px;align-items:start}
.person-photo{position:relative}
.person-photo img{width:100%;height:auto;display:block;position:relative;z-index:1}
.person-photo::before{
  content:"";position:absolute;left:-1px;top:-1px;width:42%;height:36%;
  border-top:2px solid var(--gold);border-left:2px solid var(--gold);
}
.person-photo::after{
  content:"";position:absolute;right:-1px;bottom:-1px;width:42%;height:36%;
  border-bottom:2px solid var(--gold);border-right:2px solid var(--gold);
}
.person h3{font-size:31px;letter-spacing:-.03em;margin-bottom:10px}
.person .role{color:var(--gold-t);font-weight:600;font-size:15px;margin-bottom:24px;letter-spacing:.04em}
.person .bio{color:var(--ink-2);font-size:15.5px;line-height:2}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
.tags span{
  font-size:12.5px;color:var(--brand);background:transparent;border:1px solid var(--line);
  padding:6px 15px;letter-spacing:.02em;
}
.title-list{list-style:none;padding:0;margin:16px 0}
.title-list li{
  font-size:15px;color:var(--ink-2);padding:11px 0 11px 24px;position:relative;
  border-bottom:1px solid var(--line-2);line-height:1.8;
}
.title-list li:last-child{border-bottom:0}
.title-list li::before{
  content:"";position:absolute;left:0;top:22px;width:9px;height:1px;background:var(--gold);
}

/* ============ 著作 ============ */
.books{display:grid;gap:26px}
.book{
  display:grid;grid-template-columns:240px 1fr;background:#fff;border:1px solid var(--line);
  transition:all .36s var(--ease);align-items:stretch;
}
.book:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:0 26px 58px rgba(62,31,31,.11)}
.book-cover{
  display:flex;align-items:center;justify-content:center;
  padding:38px 14px 38px 34px;
  background:linear-gradient(158deg,#FBF9F5 0%,#F2EBDD 100%);
  border-right:1px solid var(--line-2);
}
.book-cover img{
  display:block;width:100%;height:auto;max-height:310px;object-fit:contain;
  filter:drop-shadow(0 18px 26px rgba(62,31,31,.22));
  transition:transform .5s var(--ease);
}
.book:hover .book-cover img{transform:translateY(-6px) scale(1.015)}
.book-body{padding:38px 44px 38px 36px;display:flex;flex-direction:column;justify-content:center}
.book-tag{
  display:inline-block;font-size:11px;font-weight:700;color:#fff;background:var(--brand);
  padding:4px 12px;letter-spacing:.16em;margin-bottom:18px;align-self:flex-start;
}
.book-body h3{font-size:21px;margin-bottom:12px;letter-spacing:-.02em;color:var(--brand)}
.book-meta{font-size:13px;color:var(--gold-t);letter-spacing:.08em;font-weight:600;margin:0 0 20px}
.book-desc{color:var(--muted);font-size:15px;margin:0 0 18px;line-height:1.95}
.book-isbn{font-size:12px;color:var(--muted-2);margin:0;letter-spacing:.06em;line-height:1.8;font-family:var(--serif)}
@media(max-width:760px){
  .book{grid-template-columns:1fr}
  .book-cover{padding:32px 32px 8px;border-right:0;border-bottom:1px solid var(--line-2)}
  .book-cover img{max-height:270px;width:auto;max-width:100%}
  .book-body{padding:26px 26px 34px}
}

/* ============ 信息行 ============ */
/* 默认按浅底（白/米）配色；放进 .dark 区块内自动反色 */
.info-row{display:grid;grid-template-columns:130px 1fr;gap:32px;padding:24px 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:0}
.info-row .k{color:var(--gold-t);font-size:13px;font-weight:600;letter-spacing:.14em;padding-top:3px}
.info-row .v{font-size:17px;color:var(--ink);font-weight:600;line-height:1.7}
.info-row .v small{display:block;font-weight:400;color:var(--muted);font-size:13.5px;margin-top:7px;line-height:1.8}
/* 深色区块内反色 */
.dark .info-row{border-bottom-color:rgba(255,255,255,.12)}
.dark .info-row .k{color:var(--gold-l)}
.dark .info-row .v{color:#fff}
.dark .info-row .v small{color:rgba(255,255,255,.52)}

/* ============ 内页页头 ============ */
.page-head{
  background:var(--paper);padding:84px 0 72px;border-bottom:1px solid var(--line);position:relative;
}
.page-head::after{
  content:"";position:absolute;left:0;bottom:-1px;width:120px;height:2px;background:var(--gold);
}
.page-head .kicker{
  display:block;font-size:11.5px;font-weight:600;letter-spacing:.34em;color:var(--gold-t);
  text-transform:uppercase;margin-bottom:18px;
}
.page-head h1{font-size:clamp(30px,4.2vw,44px);letter-spacing:-.035em;margin-bottom:20px}
.page-head p{color:var(--muted);font-size:16.5px;max-width:680px;line-height:2;margin:0}
.panel{background:#fff;border:1px solid var(--line);padding:36px 38px;margin-bottom:24px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.step{background:#fff;padding:36px 32px}
.step b{
  display:grid;place-items:center;width:38px;height:38px;background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;margin-bottom:22px;
}
.step h4{font-size:16.5px;margin-bottom:12px}
.step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.85}

/* ============ 页脚 ============ */
.foot{background:var(--dark);color:rgba(255,255,255,.58);padding:80px 0 34px;font-size:14px;position:relative}
.foot::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(176,138,70,.5) 20%,rgba(176,138,70,.5) 80%,transparent)}
.foot a{color:rgba(255,255,255,.7)}
.foot a:hover{color:var(--gold-l)}
.foot-top{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:60px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.09)}
.foot img.f-logo{height:48px;width:auto;margin-bottom:24px;filter:brightness(0) invert(1) opacity(.92)}
.foot h4{font-size:13px;color:#fff;margin-bottom:20px;letter-spacing:.2em;font-weight:600}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin:12px 0}
.foot-desc{color:rgba(255,255,255,.5);font-size:13.5px;line-height:2;max-width:370px}
.foot-bottom{padding-top:30px;font-size:12px;color:rgba(255,255,255,.4);line-height:2.2}
.foot-bottom a{color:rgba(255,255,255,.52)}
.foot-bottom .sep{margin:0 12px;opacity:.28}

/* ============ 滚动显现（零 JS，优雅降级） ============ */
@supports (animation-timeline: view()){
  .reveal{
    animation:rvUp linear both;
    animation-timeline:view();
    animation-range:entry 4% cover 24%;
  }
  @keyframes rvUp{
    from{opacity:0;transform:translateY(22px)}
    to{opacity:1;transform:none}
  }
  @media(prefers-reduced-motion:reduce){
    .reveal{animation:none}
  }
}

/* ============ 响应式 ============ */
@media(max-width:1000px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .person{grid-template-columns:280px 1fr;gap:44px}
  .foot-top{grid-template-columns:1fr 1fr;gap:44px}
  .hero-stats div b{font-size:32px}
}
@media(max-width:820px){
  .wrap{padding:0 22px}
  .nav-in{padding:0 22px;height:68px}
  .brand{padding-right:0}
  .brand::after{display:none}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:68px;background:#fff;
    flex-direction:column;align-items:stretch;padding:10px 16px 18px;
    border-bottom:1px solid var(--line);box-shadow:0 24px 48px rgba(36,18,18,.12);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 12px}
  .nav-links a::after{display:none}
  .nav-toggle{display:inline-flex}
  .brand img{height:34px}

  section{padding:68px 0}
  .hero-in{padding-top:76px}
  .hero .seal{display:none}
  .hero .tagline{letter-spacing:.28em;font-size:11px;margin-bottom:24px;padding-left:44px}
  .hero .tagline::before{width:30px}
  .hero h1{font-size:clamp(30px,8.4vw,40px)}
  .hero-pos span{font-size:12px;letter-spacing:.1em;padding:6px 14px}
  .hero .lead{font-size:15.5px}
  .hero-acts{margin-top:36px}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:54px;padding:30px 0 36px;gap:26px 0}
  .hero-stats div{padding-left:20px}
  .hero-stats div:nth-child(odd){border-left:0;padding-left:0}
  .hero-stats div b{font-size:27px}

  .sec-head h2{font-size:26px}
  .sec-head{margin-bottom:40px}
  .page-head{padding:56px 0 48px}
  .page-head h1{font-size:29px}

  .g2,.g3,.g4,.cards{grid-template-columns:1fr}
  .cell{padding:34px 26px 38px}
  .card{padding:34px 26px 32px}
  .person{grid-template-columns:1fr;gap:32px}
  .person-photo::before,.person-photo::after{width:34%;height:30%}
  .person h3{font-size:25px}
  .steps{grid-template-columns:1fr}
  .panel{padding:26px 22px}
  .prose{font-size:16px}
  .prose h3{font-size:20px;margin:44px 0 18px}
  .foot{padding:56px 0 28px}
  .foot-top{grid-template-columns:1fr;gap:36px;padding-bottom:36px}
  .info-row{grid-template-columns:1fr;gap:6px;padding:20px 0}
}