/* ==========================================================================
   中国非洲鼓·七彩段位 · 官网全站样式
   设计基准：爱马仕橙 #EF6C26（品牌） / 证书金 #c8962a / 七彩色板
   零依赖，纯 CSS，桌面 + 移动响应式
   ========================================================================== */

:root{
  /* 品牌 */
  --brand:#EF6C26;
  --brand-deep:#A04515;
  --brand-soft:#FFF3ED;
  --brand-line:#F0A875;

  /* 证书金（庄重场合用） */
  --gold:#c8962a;
  --gold-deep:#9e7415;
  --gold-soft:#fbf7ef;

  /* 七彩色板（与《七彩段位-段位证卡片 mockup》一致） */
  --c-chi:#c8322b;
  --c-cheng:#e8852b;
  --c-huang:#f2c029;
  --c-lv:#3e9b5b;
  --c-qing:#1fa8a0;
  --c-lan:#2f6fcb;
  --c-zi:#7e4fb0;

  /* 中性 */
  --ink:#1f2328;
  --ink-2:#4a4032;
  --gray:#5c636a;
  /* 次级灰：原先 #8b9198 在白底上对比度仅约 3.2:1（低于无障碍 4.5:1），
     导航副标题、二维码说明、页脚等 11–13px 小字在手机上偏淡，已整体加深一档 */
  --gray-2:#6b7178;
  --line:#ececec;
  --line-2:#e3ded6;
  --bg:#ffffff;
  --soft:#faf8f6;

  /* 字体 */
  --serif:"Songti SC","STSong","Source Han Serif SC","Noto Serif SC",SimSun,Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;

  --wrap:1080px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select{font-family:inherit;font-size:inherit;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.narrow{max-width:820px;margin:0 auto;padding:0 24px;}

/* ============================ 顶部导航 ============================ */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0;}
.brand-logo{
  width:32px;height:32px;border-radius:8px;flex:none;align-self:center;
  box-shadow:0 0 0 1px var(--line-2);
}
.brand-mark{
  font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:3px;
  /* 「七彩段位」四字：七彩渐变（赤→紫） */
  background:linear-gradient(90deg,
    var(--c-chi) 0%,var(--c-cheng) 24%,var(--c-huang) 44%,var(--c-lv) 62%,
    var(--c-qing) 78%,var(--c-lan) 90%,var(--c-zi) 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.brand-mark em{font-style:normal;}
.brand-sub{font-size:11px;color:var(--gray-2);letter-spacing:1px;}

.menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.menu a{
  padding:8px 13px;border-radius:8px;font-size:14.5px;color:var(--gray);
  transition:color .18s,background .18s;white-space:nowrap;
}
.menu a:hover{color:var(--ink);background:var(--soft);}
/* 当前页高亮：橙色块跟随所在页面 */
.menu a.on{
  color:#fff;background:var(--brand);font-weight:700;
  box-shadow:0 4px 12px rgba(239,108,38,.28);
}
.menu a.on:hover{background:#d95f1c;color:#fff;}

.menu-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:8px;padding:7px 13px;font-size:14px;color:var(--ink);cursor:pointer;
}

@media (max-width:900px){
  .menu{
    position:fixed;inset:68px 0 auto 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:8px 16px 18px;margin:0;
    border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(0,0,0,.06);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.2s;
    max-height:calc(100vh - 68px);max-height:calc(100dvh - 68px);overflow-y:auto;
  }
  .menu.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .menu a{padding:13px 10px;border-bottom:1px solid var(--line);border-radius:0;font-size:15.5px;}
  .menu a.on{border-radius:10px;text-align:center;border-bottom:none;}
  .menu-toggle{display:block;}
  .brand-sub{display:none;}
}

/* ============================ 通用区块 ============================ */
section{padding:66px 0;}
.sec-head{margin-bottom:38px;}
.sec-head.center{text-align:center;}
.sec-num{
  font-family:var(--serif);font-size:13px;color:var(--brand);
  letter-spacing:5px;font-weight:700;display:block;margin-bottom:8px;
}
h1,h2,h3{font-family:var(--serif);margin:0;letter-spacing:1px;}
h2{font-size:28px;font-weight:700;line-height:1.45;}
.lead{color:var(--gray);font-size:16px;margin:14px 0 0;line-height:1.95;}
.sec-head.center .lead{max-width:640px;margin-left:auto;margin-right:auto;}

/* 中式分隔线：细线 + 菱形 */
.rule{
  display:flex;align-items:center;justify-content:center;gap:12px;margin:52px 0 0;
  color:var(--brand-line);
}
.rule::before,.rule::after{
  content:"";height:1px;flex:1;max-width:220px;
  background:linear-gradient(90deg,transparent,var(--brand-line));
}
.rule::after{background:linear-gradient(270deg,transparent,var(--brand-line));}
.rule i{
  width:7px;height:7px;background:var(--brand);transform:rotate(45deg);
  display:block;border-radius:1px;
}

/* ============================ 按钮 ============================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:10px;font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap;
}
.btn-primary{
  background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(239,108,38,.28);
}
.btn-primary:hover{background:#d95f1c;transform:translateY(-1px);}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line-2);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:8px;}

/* ============================ 首页 Hero ============================ */
.hero{
  padding:82px 0 66px;text-align:center;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(70% 55% at 50% 0%, rgba(239,108,38,.07), transparent 70%),
    radial-gradient(50% 40% at 100% 100%, rgba(200,150,42,.06), transparent 70%);
  pointer-events:none;
}
.hero > .wrap{position:relative;}
.hero .slogan{
  font-size:14px;font-weight:700;letter-spacing:6px;color:var(--brand);
  margin-bottom:26px;
}
.hero h1{
  font-size:46px;line-height:1.32;letter-spacing:2px;font-weight:700;
  margin:0 0 20px;
}
.hero .sub{
  font-size:16.5px;color:var(--gray);margin:0 auto;max-width:600px;line-height:2;
}
.rainbow-bar{
  height:6px;max-width:520px;margin:34px auto 0;border-radius:6px;
  background:linear-gradient(90deg,
    var(--c-chi) 0%,var(--c-cheng) 15%,var(--c-huang) 30%,var(--c-lv) 45%,
    var(--c-qing) 62%,var(--c-lan) 78%,var(--c-zi) 100%);
}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap;}

/* 首页 hero 七彩鼓（桌面右上视觉主角 / 手机标题上方徽章） */
.hero-drum{display:none;}
@media (min-width:901px){
  .hero-drum{
    display:block;position:absolute;right:1%;top:47%;transform:translateY(-50%);
    width:196px;height:auto;
  }
}

/* 竖排点缀 */
.vertical-note{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--serif);font-size:13px;letter-spacing:5px;
  color:var(--gray-2);position:absolute;right:18px;top:96px;
}
@media (max-width:1100px){.vertical-note{display:none;}}

/* 手机端 Hero 收窄：46px 在 390px 屏上过大，折行后压迫感强 */
@media (max-width:620px){
  .hero{padding:50px 0 42px;}
  .hero-drum{display:block;position:static;transform:none;width:118px;height:auto;margin:0 auto 20px;}
  .hero .slogan{letter-spacing:4px;margin-bottom:18px;font-size:13px;}
  .hero h1{font-size:30px;letter-spacing:1px;line-height:1.4;}
  .hero .sub{font-size:15.5px;line-height:1.9;}
  .hero-actions{margin-top:26px;}
  .rainbow-bar{margin-top:26px;}
}

/* ============================ 印章 ============================ */
.seal{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;
  width:66px;height:66px;border:2.5px solid var(--brand-deep);border-radius:5px;
  color:var(--brand-deep);
  font-family:var(--serif);font-weight:700;font-size:15px;line-height:1.15;
  letter-spacing:1px;text-align:center;
  background:rgba(160,69,21,.04);
  transform:rotate(-4deg);
  padding:4px;
}
.seal.gold{border-color:var(--gold-deep);color:var(--gold-deep);background:rgba(200,150,42,.06);}
.seal.rainbow{
  border-color:transparent;
  background:
    linear-gradient(#fcf7eb,#fcf7eb) padding-box,
    linear-gradient(135deg,#c8322b,#e8852b,#f2c029,#3e9b5b,#1fa8a0,#2f6fcb,#7e4fb0) border-box;
}
.seal.sm{width:50px;height:50px;font-size:12px;border-width:2px;}

/* ============================ 卡片 ============================ */
.grid{display:grid;gap:22px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:900px){.grid-3{grid-template-columns:1fr 1fr;}}
@media (max-width:620px){.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px;
  transition:.2s;
}
.card:hover{border-color:var(--brand-line);box-shadow:0 10px 30px rgba(160,69,21,.07);}
.card h3{font-size:18.5px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--gray);margin:0;line-height:1.9;}
.card .icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;
  justify-content:center;font-family:var(--serif);font-size:19px;font-weight:700;
  color:#fff;background:var(--brand);margin-bottom:18px;
}

/* ============================ 段位阶梯 ============================ */
.rank-list{display:flex;flex-direction:column;gap:0;}
.rank-item{
  display:flex;gap:20px;padding:24px 4px;border-top:1px solid var(--line-2);
  align-items:flex-start;
}
.rank-item:first-child{border-top:none;}
.rank-badge{
  flex:0 0 56px;height:56px;border-radius:14px;display:flex;align-items:center;
  justify-content:center;color:#fff;font-family:var(--serif);font-size:22px;font-weight:700;
  box-shadow:0 6px 16px rgba(0,0,0,.12);
}
.rank-body{flex:1;min-width:0;}
.rank-title{font-size:17px;font-weight:700;margin-bottom:5px;}
.rank-title .lvl{font-size:12.5px;color:var(--gray-2);font-weight:400;margin-left:8px;}
.rank-desc{font-size:14.5px;color:var(--gray);line-height:1.9;}
.rank-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;}
.tag{
  font-size:12.5px;color:var(--gray);border:1px solid var(--line-2);
  border-radius:20px;padding:3px 11px;background:var(--soft);
}
@media (max-width:620px){
  .rank-item{gap:14px;padding:20px 0;}
  .rank-badge{flex:0 0 46px;height:46px;font-size:18px;border-radius:11px;}
}

/* 段位详情卡（ranks 页） */
.rank-detail{
  border:1px solid var(--line);border-radius:16px;padding:30px 28px;margin-bottom:24px;
  background:#fff;position:relative;overflow:hidden;
}
.rank-detail::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--rc,var(--brand));
}
.rank-detail .rd-head{display:flex;align-items:center;gap:16px;margin-bottom:18px;}
.rank-detail .rd-badge{
  width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:22px;font-weight:700;color:#fff;background:var(--rc,var(--brand));
  flex-shrink:0;
}
.rank-detail .rd-title{font-size:20px;font-weight:700;font-family:var(--serif);}
.rank-detail .rd-pos{font-size:13px;color:var(--gray-2);margin-top:3px;}
.rank-detail .rd-block{margin-top:18px;}
.rank-detail .rd-label{
  font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:2px;margin-bottom:7px;
}
.rank-detail ul{margin:0;padding-left:20px;}
.rank-detail li{font-size:14.5px;color:var(--gray);line-height:1.95;margin:5px 0;}

/* ============================ 证书查询 ============================ */
.verify-box{
  background:var(--gold-soft);border:1px solid #eadfc8;border-radius:18px;
  padding:38px 34px;position:relative;overflow:hidden;
}
.verify-box .vb-title{
  font-family:var(--serif);font-size:22px;font-weight:700;text-align:center;letter-spacing:2px;
}
.verify-box .vb-sub{
  text-align:center;font-size:13.5px;color:#8a7c5e;margin-top:8px;letter-spacing:1px;
}
.vb-tabs{
  display:flex;gap:6px;margin:20px auto 0;max-width:430px;
  background:#fff;border:1px solid #eadfc8;border-radius:12px;padding:5px;
}
.vb-tab{
  flex:1;padding:10px 12px;border:0;border-radius:9px;background:transparent;cursor:pointer;
  font-family:inherit;font-size:14px;color:#8a7c5e;letter-spacing:1px;transition:.18s;
}
.vb-tab:hover{color:var(--ink);}
.vb-tab.on{background:var(--brand);color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(239,108,38,.20);}

.verify-form{
  display:grid;grid-template-columns:1fr 1fr auto;gap:12px;margin-top:22px;align-items:end;
}
.verify-form.mode-phone{grid-template-columns:1fr auto;}
.field{display:flex;flex-direction:column;gap:7px;}
.field[hidden]{display:none;}
.field label{font-size:13px;color:#8a7c5e;letter-spacing:1px;}
.field input{
  padding:13px 15px;border:1px solid #e2d6bc;border-radius:10px;background:#fff;
  font-size:15px;color:var(--ink);outline:none;transition:.18s;
}
.field input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,150,42,.12);}
.field input::placeholder{color:#b9ad94;}
@media (max-width:760px){
  .verify-form,
  .verify-form.mode-phone,
  .verify-form.mode-no{grid-template-columns:1fr;}
  .verify-box{padding:28px 22px;}
  .vb-tabs{max-width:none;}
}

.verify-result{margin-top:26px;}
.result-empty{
  text-align:center;font-size:14.5px;color:var(--gray);padding:24px 0;
}
.result-err{
  background:#fff5f5;border:1px solid #f3c9c9;color:#a33;border-radius:12px;
  padding:18px 20px;font-size:14.5px;line-height:1.85;
}
.result-list{display:flex;flex-direction:column;gap:12px;}
.result-row{
  display:flex;align-items:center;gap:16px;background:#fff;border:1px solid #eadfc8;
  border-radius:12px;padding:16px 18px;cursor:pointer;transition:.18s;
}
.result-row:hover{border-color:var(--gold);box-shadow:0 8px 22px rgba(200,150,42,.14);}
.result-row .rr-badge{
  width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:var(--serif);font-size:17px;font-weight:700;flex-shrink:0;
}
.result-row .rr-main{flex:1;min-width:0;}
.result-row .rr-name{font-size:16px;font-weight:700;}
.result-row .rr-meta{font-size:13px;color:var(--gray-2);margin-top:2px;}
.result-row .rr-go{font-size:13.5px;color:var(--brand);font-weight:700;flex-shrink:0;}

/* ============================ 证书本体 ============================ */
.cert{
  max-width:860px;margin:0 auto;background:#fffdf8;border-radius:10px;
  padding:16px;position:relative;
  box-shadow:0 18px 50px rgba(120,96,50,.16);
}
.cert-inner{
  border:1.5px solid var(--gold);border-radius:6px;padding:42px 46px 34px;position:relative;
}
.cert-inner::before{
  content:"";position:absolute;inset:6px;border:1px solid rgba(200,150,42,.32);
  border-radius:3px;pointer-events:none;
}
.cert-topband{
  height:6px;border-radius:6px;margin:-26px -30px 30px;
  background:linear-gradient(90deg,
    var(--c-chi),var(--c-cheng),var(--c-huang),var(--c-lv),
    var(--c-qing),var(--c-lan),var(--c-zi));
}
.cert-head{text-align:center;position:relative;}
.cert-head .ct-title{
  font-family:var(--serif);font-size:30px;font-weight:700;letter-spacing:8px;
}
.cert-head .ct-en{
  font-size:10px;letter-spacing:3px;color:#a8966f;margin-top:6px;
}
.cert-head .ct-seal{position:absolute;right:0;top:-6px;}
.cert-rule{
  height:1px;margin:24px 0 26px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.cert-name-row{text-align:center;margin-bottom:8px;}
.cert-name-row .cn-label{font-size:13.5px;color:#9a8a68;letter-spacing:3px;}
.cert-name-row .cn-name{
  font-family:var(--serif);font-size:32px;font-weight:700;letter-spacing:6px;
  margin-top:6px;padding-bottom:10px;display:inline-block;
  border-bottom:2px solid var(--gold);
  min-width:220px;
}
/* 鼓名：跟在姓名右侧，字号缩小、字距收紧 */
.cert-name-row .cn-stage{font-size:.58em;font-weight:600;color:#9a8a68;letter-spacing:2px;margin-left:12px;}
.cert-rank-line{
  text-align:center;font-size:15px;color:var(--ink-2);line-height:2.2;margin:20px 0 6px;
}
.cert-rank-name{
  font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:2px;
  padding:0 8px;white-space:nowrap;display:inline-block;
}
.cert-info{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px 30px;margin:26px 0 8px;
}
.cert-info .ci{
  display:flex;gap:10px;font-size:14px;padding:8px 0;border-bottom:1px dashed #eadfc8;
}
.cert-info .ci .k{color:#9a8a68;min-width:74px;flex-shrink:0;letter-spacing:1px;}
.cert-info .ci .v{color:var(--ink);font-weight:600;word-break:break-all;}
.cert-ladder{display:flex;justify-content:center;gap:6px;margin:24px 0 6px;}
.cert-ladder .rung{
  width:38px;height:40px;border-radius:8px;opacity:.24;position:relative;
}
.cert-ladder .rung.on{opacity:1;box-shadow:0 0 0 2px #fff,0 4px 12px rgba(0,0,0,.16);}
.cert-ladder .rung span{
  position:absolute;bottom:3px;left:0;right:0;text-align:center;font-size:11px;
  color:#fff;font-weight:700;text-shadow:0 1px 2px rgba(0,0,0,.45);
}
.cert-ladder .rung.on span{font-size:12px;}
.cert-foot{
  display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-top:30px;
}
.cert-foot .cf-lineage{font-size:13.5px;color:#6b5d3e;line-height:2;}
.cert-foot .cf-lineage b{color:var(--ink);}
.cert-foot .cf-sign{text-align:center;}
.cert-foot .cf-sign .sig{
  font-family:var(--serif);font-size:24px;font-weight:700;letter-spacing:3px;
  color:var(--brand-deep);display:inline-block;
}
.cert-foot .cf-sign .role{font-size:12px;color:#9a8a68;letter-spacing:1px;margin-top:4px;}
/* 落款区右下角：验真二维码（尺寸由脚本按屏宽设置 inline style） */
.cert-foot .cf-qr{text-align:center;flex-shrink:0;}
.cert-foot .cf-qr canvas{
  display:block;background:#fff;border:1px solid var(--line-2);
  border-radius:6px;padding:3px;box-sizing:content-box;
}
.cert-foot .cf-qr .qr-cap{
  font-size:11.5px;color:#9a8a68;letter-spacing:1px;margin-top:5px;white-space:nowrap;
}
.cert-slogan{
  text-align:center;font-size:14px;font-weight:700;letter-spacing:3px;margin-top:26px;
  padding-top:16px;border-top:1px solid rgba(200,150,42,.3);
}
.cert-slogan span{color:var(--gold-deep);}
@media (max-width:760px){
  .cert{padding:10px;}
  .cert-inner{padding:26px 18px 24px;}
  .cert-topband{margin:-14px -2px 22px;}
  .cert-head .ct-title{font-size:21px;letter-spacing:4px;}
  .cert-head .ct-seal{position:static;display:block;margin:14px auto 0;}
  .cert-name-row .cn-name{font-size:25px;}
  .cert-info{grid-template-columns:1fr;}
  .cert-rank-line{font-size:13.5px;line-height:1.9;margin:16px 0 4px;}
  .cert-rank-name{display:block;font-size:24px;letter-spacing:1px;padding:0;margin-top:8px;}
  .cert-foot{flex-direction:column;align-items:center;gap:16px;}
  .cert-ladder .rung{width:30px;height:34px;border-radius:6px;}
}

/* 证书操作条 */
.cert-actions{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:28px 0 0;
}

/* ============================ 状态提示 ============================ */
.notice{
  border-radius:12px;padding:16px 20px;font-size:14px;line-height:1.9;
  background:var(--brand-soft);border-left:4px solid var(--brand);color:#7a4218;
}
.notice.gold{background:var(--gold-soft);border-left-color:var(--gold);color:#6b5d3e;}
.notice b{color:var(--brand-deep);}
/* 带二维码的通知条（考段安排等） */
.exam-notice{display:flex;gap:22px;align-items:center;}
.exam-notice .en-text{flex:1;}
.exam-notice .en-qr{flex-shrink:0;text-align:center;}
.exam-notice .en-qr img{
  width:96px;height:96px;display:block;border-radius:8px;
  border:1px solid var(--line-2);background:#fff;padding:4px;box-sizing:border-box;
}
.exam-notice .en-qr span{display:block;font-size:11.5px;color:var(--gray-2);margin-top:5px;letter-spacing:2px;}
@media (max-width:560px){
  /* 窄屏改上下堆叠：并排时留给文字仅约 208px，折行过密 */
  .exam-notice{flex-direction:column;align-items:flex-start;gap:16px;}
  .exam-notice .en-qr{align-self:center;}
}

/* ============================ 师承链 ============================ */
.lineage{
  background:var(--soft);border:1px solid var(--line);border-radius:16px;
  padding:34px 28px;text-align:center;
}
.lineage .chain{
  font-family:var(--serif);font-size:24px;font-weight:700;letter-spacing:4px;
  margin-bottom:16px;
}
.lineage .chain .arrow{color:var(--brand);padding:0 12px;font-size:19px;}
.lineage p{font-size:14.5px;color:var(--gray);margin:0;line-height:2;}

/* 共建者公约 */
.cov-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:960px;margin:42px auto 0;}
.cov-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 26px 24px;}
.cov-item h3{margin:0 0 10px;font-size:18px;}
.cov-item h3 em{font-style:normal;color:var(--brand);margin-right:8px;font-family:var(--serif);}
.cov-item p{margin:0;font-size:14.5px;color:var(--gray);line-height:2.05;}
.cov-epilogue{
  max-width:640px;margin:34px auto 0;background:#fbf7f0;border:1px solid var(--line-2);
  border-radius:14px;padding:24px 30px;text-align:center;
  font-family:var(--serif);font-size:15.5px;color:var(--brand-deep);line-height:2.3;
}
@media (max-width:760px){.cov-grid{grid-template-columns:1fr;}}

/* 师资 */
.profile{display:grid;grid-template-columns:220px 1fr;gap:38px;align-items:start;}
.profile .avatar{
  width:100%;aspect-ratio:3/4;border-radius:14px;border:1px solid var(--line-2);
  background:linear-gradient(160deg,var(--soft),#f2ece4);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:15px;color:var(--gray-2);letter-spacing:2px;
  text-align:center;padding:16px;line-height:1.9;
}
.profile .p-name{font-family:var(--serif);font-size:27px;font-weight:700;letter-spacing:2px;}
.profile .p-role{color:var(--brand);font-size:14.5px;font-weight:700;margin:8px 0 20px;letter-spacing:1px;}
.title-list{list-style:none;margin:0;padding:0;}
.title-list li{
  font-size:14.5px;color:var(--gray);padding:9px 0 9px 22px;position:relative;
  border-bottom:1px dashed var(--line-2);line-height:1.85;
}
.title-list li:last-child{border-bottom:none;}
.title-list li::before{
  content:"";position:absolute;left:2px;top:19px;width:6px;height:6px;
  background:var(--brand);transform:rotate(45deg);border-radius:1px;
}
@media (max-width:760px){
  .profile{grid-template-columns:1fr;gap:24px;}
  .profile .avatar{aspect-ratio:16/9;}
}

/* ============================ 动态列表 ============================ */
.news-item{
  display:flex;gap:24px;padding:24px 0;border-top:1px solid var(--line-2);
}
.news-item:first-child{border-top:none;}
.news-date{
  flex:0 0 96px;font-family:var(--serif);font-size:13.5px;color:var(--gray-2);
  letter-spacing:1px;padding-top:3px;
}
.news-body h3{font-size:17.5px;margin-bottom:8px;}
.news-body p{font-size:14.5px;color:var(--gray);margin:0;line-height:1.9;}
.news-tag{
  display:inline-block;font-size:12px;color:var(--brand);background:var(--brand-soft);
  border-radius:20px;padding:2px 10px;margin-bottom:9px;font-weight:700;
}
@media (max-width:620px){
  .news-item{flex-direction:column;gap:10px;}
  .news-date{flex:none;}
}

/* ============================ 联系 ============================ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media (max-width:760px){.contact-grid{grid-template-columns:1fr;}}
.contact-card{
  border:1px solid var(--line);border-radius:14px;padding:26px 24px;background:#fff;
}
.contact-card .cc-label{
  font-size:12.5px;color:var(--brand);letter-spacing:2px;font-weight:700;margin-bottom:9px;
}
.contact-card .cc-value{font-size:16.5px;font-weight:700;line-height:1.7;}
.contact-card .cc-note{font-size:13.5px;color:var(--gray-2);margin-top:9px;line-height:1.85;}
.qr-box{width:172px;margin-top:16px;}
.qr-box img{
  width:100%;display:block;border-radius:10px;border:1px solid var(--line-2);
}
.qr-cap{
  font-size:12px;color:var(--gray-2);text-align:center;margin-top:7px;letter-spacing:1px;
}

/* ============================ 关注服务号条带 ============================ */
.follow-band{
  display:flex;align-items:center;gap:30px;flex-wrap:wrap;justify-content:space-between;
  border:1px solid var(--line-2);border-radius:16px;padding:26px 30px;
  background:linear-gradient(120deg,#fff 0%,var(--soft) 100%);
}
.follow-band .fo-main{flex:1;min-width:230px;}
.follow-band .fo-title{
  font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:1px;
  line-height:1.5;margin:0;
}
.follow-band .fo-desc{font-size:14px;color:var(--gray);line-height:1.9;margin:9px 0 0;}
.follow-band .qr-box{width:150px;margin-top:0;flex:none;}
@media (max-width:620px){
  .follow-band{padding:22px 20px;gap:20px;}
  .follow-band .fo-title{font-size:19px;}
  .follow-band .qr-box{width:132px;}
}

/* ============================ 页脚 ============================ */
footer{
  border-top:1px solid var(--line);background:var(--soft);
  padding:44px 0 40px;margin-top:20px;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px;
}
.foot-grid h4{
  font-family:var(--serif);font-size:15px;font-weight:700;letter-spacing:2px;margin:0 0 14px;
}
.foot-grid p,.foot-grid a{
  font-size:13.5px;color:var(--gray);line-height:2.1;display:block;
}
.foot-grid a:hover{color:var(--brand);}
.foot-brand .fb-mark{
  font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:3px;color:var(--ink);
  margin-bottom:10px;
}
.foot-brand .fb-slogan{
  font-size:13.5px;color:var(--brand);font-weight:700;letter-spacing:2px;margin-bottom:14px;
}
.foot-bottom{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line-2);
  text-align:center;font-size:12.5px;color:var(--gray-2);line-height:2.2;
}
.foot-bottom a{color:var(--gray-2);}
.foot-bottom a:hover{color:var(--brand);}
/* 公安备案国徽：保持与备案号同行（覆盖全局 img 的 display:block） */
.foot-bottom img{display:inline-block;vertical-align:-2px;margin-right:5px;}
@media (max-width:760px){
  .foot-grid{grid-template-columns:1fr;gap:26px;}
}

/* ============================ 工具类 ============================ */
/* 七彩渐变文字（赤→紫，用于品牌字样） */
.rainbow-text{
  background:linear-gradient(90deg,
    var(--c-chi) 0%,var(--c-cheng) 24%,var(--c-huang) 44%,var(--c-lv) 62%,
    var(--c-qing) 78%,var(--c-lan) 90%,var(--c-zi) 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.mt-0{margin-top:0;}
.mt-16{margin-top:16px;}
.mt-24{margin-top:24px;}
.mt-32{margin-top:32px;}
.center{text-align:center;}

/* ============================ 无 JS 兜底提示 ============================ */
/* 段位阶梯、证书核验结果均由脚本渲染；关掉 JavaScript 时给一句提示，避免白屏 */
.noscript-tip{
  max-width:760px;margin:26px auto;padding:18px 22px;border-radius:12px;
  background:#fff7ef;border:1px solid #f6d6c3;color:#7a4218;
  font-size:14.5px;line-height:1.9;text-align:center;
}
.hide{display:none !important;}

/* ==================== 手机端统一收窄（<=620px） ==================== */
@media (max-width:620px){
  section{padding:44px 0;}
  .sec-head{margin-bottom:26px;}
  h2{font-size:23px;}
  .lead{font-size:15px;}
  .rule{margin-top:34px;}
  .rank-detail{padding:24px 20px;}
  .cert-ladder .rung{width:26px;height:30px;}
  .lineage{padding:26px 20px;}
  .lineage .chain{font-size:20px;letter-spacing:2px;}
  .lineage .chain .arrow{padding:0 7px;font-size:16px;}
}

/* ============================ 打印（证书导出PDF） ============================ */
@media print{
  .nav,footer,.cert-actions,.rule,.no-print{display:none !important;}
  body{background:#fff;}
  .cert{box-shadow:none;max-width:100%;}
  section{padding:0;}
  @page{margin:12mm;}
}