/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-soft:#4A5058;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#C9C2B4;
  --accent:#E24B2A;
  --accent-2:#1E5B4C;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-input:6px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04);
  --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 48px;}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px 0;
  background:transparent;
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  background:rgba(246,244,239,.97);
  box-shadow:0 1px 0 var(--line);
  padding:8px 0;
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:10px 12px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-stuck .nav-card{box-shadow:var(--shadow-2);}
.brand{display:inline-flex;align-items:center;gap:10px;padding:4px 6px;flex:none;}
.brand-mark{
  width:22px;height:22px;border-radius:4px;
  background:var(--ink);position:relative;flex:none;
  transition:background .3s var(--ease);
}
.brand-mark::after{
  content:"";position:absolute;right:4px;bottom:4px;
  width:8px;height:8px;background:var(--accent);
  transition:background .3s var(--ease);
}
.brand:hover .brand-mark{background:var(--accent);}
.brand:hover .brand-mark::after{background:var(--paper);}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 12px;border-radius:8px;
  font-size:14px;color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.nav-item:hover{background:var(--paper);border-color:var(--ink);color:var(--ink);}
.nav-item.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.nav-cta{flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:8px;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  margin-left:auto;flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-panel{
  position:fixed;inset:0;z-index:70;
  background:rgba(20,22,26,.55);
  opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.mobile-panel.is-open{opacity:1;visibility:visible;}
.mobile-sheet{
  margin:76px 16px 16px;
  background:var(--paper-2);
  border-radius:var(--radius-card);
  padding:16px;
  box-shadow:var(--shadow-2);
}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:56px;padding:12px 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--paper);
  font-size:15px;font-weight:600;
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.mobile-link:hover,.mobile-link:active{background:var(--paper-2);border-color:var(--ink);transform:translateY(-2px);}
.mobile-link .m-arrow{color:var(--accent);font-family:var(--font-mono);}
.mobile-cta{display:block;margin-top:14px;text-align:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .12s var(--ease),box-shadow .28s var(--ease);
}
.btn .arrow{transition:transform .28s var(--ease);font-family:var(--font-mono);}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .32s var(--ease);
}
.text-link:hover::after{width:100%;}
.text-link .arrow{font-family:var(--font-mono);transition:transform .28s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,7vw,104px) 0;}
.sec-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;
  border-top:1px solid var(--line);
  padding-top:28px;margin-bottom:40px;
}
.sec-title-wrap{max-width:640px;}
.sec-num{
  display:block;font-family:var(--font-mono);font-size:13px;
  letter-spacing:.16em;color:var(--accent);margin-bottom:10px;
}
.sec-title{font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.sec-desc{margin-top:12px;font-size:14px;line-height:1.7;color:var(--ink-soft);max-width:60ch;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--accent-2);background:rgba(30,91,76,.12);
}
.badge-outline{color:var(--accent);background:transparent;border:1px solid var(--accent);}

/* ============ Hero ============ */
.hero{padding:clamp(36px,5vw,68px) 0 clamp(48px,6vw,88px);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:56px;}
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--accent);margin-bottom:18px;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);}
.hero h1{
  font-size:clamp(2.2rem,5vw,4rem);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  max-width:16ch;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-soft);
  max-width:34ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.stat-bar{
  display:flex;flex-wrap:wrap;gap:0;
  margin-top:40px;border-top:1px solid var(--line);padding-top:22px;
}
.stat{flex:1 1 30%;min-width:96px;padding-right:18px;}
.stat + .stat{border-left:1px solid var(--line);padding-left:18px;}
.stat-num{display:block;font-family:var(--font-mono);font-size:1.6rem;font-weight:700;color:var(--accent);line-height:1.2;}
.stat-label{display:block;font-size:13px;color:var(--ink-soft);margin-top:4px;}
.hero-media{
  position:relative;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  box-shadow:var(--shadow-1);
}
@media (min-width:1024px){.hero-media{aspect-ratio:4/5;}}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.hero-media:hover img{transform:scale(1.03);}
.hero-chip{
  position:absolute;top:14px;left:14px;
  background:var(--paper-2);border-radius:10px;
  padding:10px 12px;max-width:82%;
  box-shadow:var(--shadow-1);
}
.hero-chip p{margin-top:6px;font-size:13px;line-height:1.5;font-weight:600;color:var(--ink);}

/* ============ 三步上手 ============ */
.steps{display:grid;grid-template-columns:1fr;gap:18px;align-items:end;}
@media (min-width:900px){.steps{grid-template-columns:5fr 4fr 3fr;gap:24px;}}
.step{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px 28px;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
@media (min-width:900px){
  .step:nth-child(1){padding-top:64px;}
  .step:nth-child(2){padding-top:46px;}
  .step:nth-child(3){padding-top:32px;}
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.step-num{
  font-family:var(--font-mono);font-size:2.5rem;line-height:1;
  font-weight:700;color:var(--accent);letter-spacing:-.02em;
}
.step h3{margin-top:14px;font-size:1.125rem;font-weight:650;}
.step p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-soft);}
@media (max-width:899px){
  .step{border-left:3px solid var(--accent);border-radius:10px;}
}

/* ============ 案例证明 ============ */
.proof-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:900px){.proof-grid{grid-template-columns:7fr 5fr;gap:24px;}}
.proof-main{
  position:relative;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease);
}
.proof-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.proof-media{overflow:hidden;aspect-ratio:16/10;}
.proof-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.proof-main:hover .proof-media img{transform:scale(1.03);}
.proof-body{padding:24px 26px 26px;}
.proof-body h3{margin-top:12px;font-size:1.35rem;font-weight:700;line-height:1.35;}
.proof-body p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-soft);}
.proof-more{margin-top:18px;display:flex;justify-content:flex-end;}
.proof-side{display:grid;grid-template-rows:1fr 1fr;gap:20px;}
.proof-mini{
  display:flex;gap:16px;align-items:center;
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease);
}
.proof-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.proof-mini img{width:96px;height:96px;object-fit:cover;border-radius:10px;flex:none;}
.proof-mini h4{margin-top:8px;font-size:15px;font-weight:650;line-height:1.45;}
.proof-mini .mini-date{display:block;margin-top:6px;font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);}
.proof-bar{
  margin-top:24px;background:var(--ink);color:var(--paper);
  border-radius:var(--radius-card);
  display:grid;grid-template-columns:1fr;gap:0;
  padding:6px 0;
}
@media (min-width:768px){.proof-bar{grid-template-columns:repeat(3,1fr);}}
.proof-bar .pb-item{padding:22px 26px;}
.proof-bar .pb-item + .pb-item{border-top:1px solid rgba(255,255,255,.14);}
@media (min-width:768px){
  .proof-bar .pb-item + .pb-item{border-top:none;border-left:1px solid rgba(255,255,255,.14);}
}
.pb-num{display:block;font-family:var(--font-mono);font-size:1.75rem;font-weight:700;color:var(--accent);line-height:1.2;}
.pb-label{display:block;font-size:13px;color:rgba(246,244,239,.72);margin-top:4px;}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.news-grid{grid-template-columns:1fr 1fr;gap:24px;}}
.news-card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.news-media{display:block;overflow:hidden;aspect-ratio:16/10;background:var(--paper);}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-title{margin-top:12px;font-size:1.05rem;font-weight:650;line-height:1.5;}
.news-title a{position:relative;display:inline;}
.news-title a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--accent);transition:width .32s var(--ease);
}
.news-card:hover .news-title a::after{width:100%;}
.news-desc{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-soft);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);margin-top:18px;
}
.news-date{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);letter-spacing:.02em;}
.news-foot .arrow{font-family:var(--font-mono);color:var(--accent);transition:transform .28s var(--ease);}
.news-card:hover .news-foot .arrow{transform:translateX(4px);}
.empty-state{
  min-height:220px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--paper-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  text-align:center;padding:32px 24px;
}
.empty-state .empty-title{font-size:16px;font-weight:650;}
.empty-state .empty-sub{font-size:14px;color:var(--ink-soft);}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:56px;align-items:start;}}
.faq-aside{position:relative;}
@media (min-width:1024px){.faq-aside{position:sticky;top:110px;}}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 20px 16px;font-size:17px;font-weight:650;line-height:1.5;
  cursor:pointer;list-style:none;position:relative;
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:var(--accent);opacity:0;transition:opacity .25s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary:hover{color:var(--accent);}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.faq-icon::before{content:"+";font-size:16px;line-height:1;color:var(--ink);}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--accent);}
.faq-item[open] .faq-icon::before{color:var(--accent);}
.faq-answer{padding:0 0 22px 16px;}
.faq-answer p{font-size:15px;line-height:1.85;color:var(--ink-soft);max-width:68ch;}

/* ============ CTA 表单 ============ */
.cta-section{
  background:var(--ink);color:var(--paper);
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 88px);
  padding:clamp(56px,7vw,100px) 0;
}
.cta-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:start;}
@media (min-width:1024px){.cta-grid{grid-template-columns:6fr 5fr;gap:56px;}}
.cta-num{font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;color:var(--accent);}
.cta-title{margin-top:12px;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;}
.cta-desc{margin-top:16px;font-size:15px;line-height:1.8;color:rgba(246,244,239,.76);max-width:46ch;}
.cta-points{margin-top:26px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:12px;font-size:15px;line-height:1.6;color:rgba(246,244,239,.88);}
.cta-points li::before{content:"";flex:none;width:8px;height:8px;background:var(--accent);margin-top:8px;}
.form-card{
  background:var(--paper-2);color:var(--ink);
  border-radius:var(--radius-card);padding:26px;
  box-shadow:var(--shadow-2);
}
.form-card h3{font-size:1.125rem;font-weight:700;}
.form-card .form-hint{margin-top:6px;font-size:13px;color:var(--ink-soft);}
.field{margin-top:16px;}
.field label{display:block;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-soft);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:var(--paper-2);
  border:1px solid var(--line);border-bottom:2px solid var(--line);
  border-radius:var(--radius-input);
  padding:12px 14px;font-size:15px;line-height:1.4;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  min-height:46px;
}
.field textarea{min-height:98px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--line-strong);border-bottom-color:var(--accent);border-bottom-width:2px;
  box-shadow:0 2px 0 -1px var(--accent);
}
.field input::placeholder,.field textarea::placeholder{color:#9A968C;}
.form-card .btn{margin-top:20px;}
.form-note{margin-top:12px;font-size:12px;color:var(--ink-soft);line-height:1.6;}
.form-msg{
  margin-top:14px;font-size:14px;font-weight:600;color:var(--accent-2);
  display:none;
}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--paper);padding:clamp(48px,6vw,80px) 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{background:var(--paper);}
.footer-brand .brand-mark::after{background:var(--accent);}
.footer-brand .brand-name{color:var(--paper);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(246,244,239,.66);max-width:34ch;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;color:rgba(246,244,239,.55);}
.footer-col ul{margin-top:16px;display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(246,244,239,.82);transition:color .25s var(--ease);}
.footer-col a:hover{color:var(--accent);}
.footer-contact-line{display:flex;align-items:baseline;gap:8px;font-size:14px;color:rgba(246,244,239,.82);}
.footer-contact-line .lbl{font-family:var(--font-mono);font-size:12px;color:rgba(246,244,239,.5);}
.footer-cta{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  padding:12px 20px;border-radius:var(--radius-btn);
  border:1.5px solid rgba(246,244,239,.32);font-size:14px;font-weight:600;
  transition:background .28s var(--ease),border-color .28s var(--ease),color .28s var(--ease);
}
.footer-cta:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.footer-cta .arrow{font-family:var(--font-mono);transition:transform .28s var(--ease);}
.footer-cta:hover .arrow{transform:translateX(4px);}
.footer-bottom{
  margin-top:clamp(36px,5vw,56px);
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:12px;color:rgba(246,244,239,.5);
}
.footer-bottom .mono{font-family:var(--font-mono);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .hero-media:hover img,.news-card:hover .news-media img,.proof-main:hover .proof-media img{transform:none;}
  .card:hover,.step:hover,.news-card:hover,.proof-main:hover,.proof-mini:hover{transform:none;}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:767px){
  .sec-head{margin-bottom:28px;}
  .hero-sub{font-size:16px;max-width:100%;}
  .stat{flex:1 1 100%;padding:0 0 14px;}
  .stat + .stat{border-left:none;border-top:1px solid var(--line);padding:14px 0 0;}
  .proof-mini img{width:76px;height:76px;}
  .faq-item summary{font-size:16px;}
}

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --ink-soft:#4A5058;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#C9C2B4;
  --accent:#E24B2A;
  --accent-2:#1E5B4C;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04);
  --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1024px){.container{padding-left:48px;padding-right:48px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0 8px;
  background:transparent;
}
.site-header.is-stuck .nav-shell{
  box-shadow:var(--shadow-2);
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:10px 12px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s var(--ease);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:4px 6px;
  flex-shrink:0;
}
.brand-mark{
  width:22px;height:22px;
  display:inline-block;
  background:var(--ink);
  position:relative;
  border-radius:4px;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:5px;
  border:2px solid var(--accent);
  border-radius:1px;
}
.brand-name{
  font-size:1.0625rem;
  font-weight:800;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-item{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  border-radius:var(--radius-btn);
  font-size:.875rem;
  font-weight:500;
  color:var(--ink-soft);
  white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-item:hover{
  background:var(--paper);
  color:var(--ink);
  box-shadow:inset 0 0 0 1px var(--ink);
}
.nav-item.is-active{
  background:var(--ink);
  color:var(--paper);
  box-shadow:none;
}
.nav-cta{
  margin-left:8px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-btn);
  background:var(--ink);
  color:var(--paper);
  font-size:.875rem;
  font-weight:600;
  white-space:nowrap;
  transition:background .24s var(--ease),transform .18s var(--ease);
}
.nav-cta:hover{background:var(--accent)}
.nav-cta:active{transform:translateY(1px)}
.nav-cta .arrow{transition:transform .24s var(--ease)}
.nav-cta:hover .arrow{transform:translateX(4px)}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  cursor:pointer;
  flex-shrink:0;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.mobile-panel{
  display:none;
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(20,22,26,.42);
}
.mobile-panel.is-open{display:block}
.mobile-panel-inner{
  position:absolute;
  top:0;right:0;
  width:min(360px,92vw);
  height:100%;
  background:var(--paper);
  padding:20px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:16px;
  box-shadow:-16px 0 40px rgba(20,22,26,.18);
}
.mobile-panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.mobile-close{
  width:40px;height:40px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--paper-2);
  color:var(--ink);
  font-size:1.1rem;
  cursor:pointer;
}
.mobile-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.mobile-grid .nav-item{
  height:auto;
  min-height:64px;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  gap:2px;
  padding:12px;
  background:var(--paper-2);
  border:1px solid var(--line);
  box-shadow:none;
  font-weight:600;
  color:var(--ink);
  font-size:.875rem;
}
.mobile-grid .nav-item:hover{border-color:var(--ink);box-shadow:none;background:var(--paper-2)}
.mobile-grid .nav-item.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.mobile-grid .nav-item small{
  font-family:var(--font-mono);
  font-size:.6875rem;
  color:var(--accent);
  letter-spacing:.06em;
  font-weight:500;
}
.mobile-panel .btn-primary{width:100%;justify-content:center}
body.no-scroll{overflow:hidden}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  font-size:.9375rem;
  font-weight:600;
  padding:14px 24px;
  min-height:44px;
  border:0;
  cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .18s var(--ease),box-shadow .24s var(--ease);
}
.btn .arrow{transition:transform .24s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.875rem;
  font-weight:600;
  color:var(--ink);
  padding:6px 0;
  position:relative;
}
.btn-ghost::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--accent);
  transition:width .3s var(--ease);
}
.btn-ghost:hover::after{width:100%}
.btn-ghost .arrow{transition:transform .24s var(--ease);color:var(--accent)}
.btn-ghost:hover .arrow{transform:translateX(4px)}

/* ---------- Page hero ---------- */
.page-hero{
  padding-top:clamp(28px,4vw,48px);
  padding-bottom:clamp(28px,4vw,44px);
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
@media (min-width:900px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:48px}
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.14em;
  color:var(--accent-2);
  background:rgba(30,91,76,.1);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(1.9rem,4.2vw,3.1rem);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  max-width:16em;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--accent);
}
.hero-lead{
  margin-top:18px;
  font-size:1rem;
  color:var(--ink-soft);
  max-width:36em;
  line-height:1.9;
}
.hero-actions{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-figure{
  position:relative;
  border-radius:12px;
  overflow:hidden;
  box-shadow:inset 0 0 0 1px var(--line),var(--shadow-1);
  background:var(--paper-2);
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .32s var(--ease);
}
.hero-figure:hover img{transform:scale(1.03)}
.hero-figure .fig-tag{
  position:absolute;
  left:14px;top:14px;
  background:var(--paper-2);
  border-radius:8px;
  padding:7px 12px;
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--ink);
  box-shadow:var(--shadow-1);
  display:flex;
  align-items:center;
  gap:8px;
}
.hero-figure .fig-tag i{
  width:6px;height:6px;
  background:var(--accent);
  display:inline-block;
  border-radius:1px;
}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:26px 16px 14px;
  font-size:.75rem;
  color:#fff;
  background:linear-gradient(to top,rgba(20,22,26,.62),rgba(20,22,26,0));
}

/* ---------- Anchor bar ---------- */
.anchor-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:12px 0;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.anchor-list{
  display:flex;
  gap:10px;
  min-width:max-content;
}
.anchor-list a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--paper-2);
  font-size:.8125rem;
  font-weight:600;
  color:var(--ink-soft);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.anchor-list a:hover{color:var(--ink);border-color:var(--ink)}
.anchor-list a span{font-family:var(--font-mono);color:var(--accent)}

/* ---------- Sections ---------- */
.section{padding:clamp(48px,6vw,88px) 0}
.section + .section{border-top:1px solid var(--line)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:clamp(24px,3vw,40px);
}
.sec-index{
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.16em;
  color:var(--accent);
  display:block;
  margin-bottom:10px;
}
.sec-title{
  font-size:clamp(1.4rem,2.5vw,2.05rem);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
}
.sec-note{
  font-size:.875rem;
  color:var(--ink-soft);
  max-width:34em;
  margin-top:10px;
}

/* ---------- Match list ---------- */
.match-list{
  border-top:1px solid var(--line);
}
.match-row{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
@media (min-width:820px){
  .match-row{
    grid-template-columns:112px minmax(0,1fr) auto;
    gap:28px;
    align-items:center;
    padding:24px 16px;
  }
  .match-row:hover{
    background:var(--paper-2);
    box-shadow:var(--shadow-1);
  }
}
.date-block{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-family:var(--font-mono);
}
@media (min-width:820px){
  .date-block{flex-direction:column;gap:0;align-items:flex-start}
}
.date-day{
  font-size:1.5rem;
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.1;
}
.date-week{
  font-size:.75rem;
  color:var(--ink-soft);
  letter-spacing:.08em;
}
.match-main h3{
  font-size:1.0625rem;
  font-weight:650;
  line-height:1.45;
  letter-spacing:-.005em;
}
.match-main p{
  margin-top:8px;
  font-size:.875rem;
  line-height:1.75;
  color:var(--ink-soft);
  max-width:44em;
}
.match-meta{
  margin-top:10px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(30,91,76,.1);
  color:var(--accent-2);
}
.tag-mono{
  background:transparent;
  color:var(--ink-soft);
  font-family:var(--font-mono);
  font-weight:500;
  letter-spacing:.02em;
  padding-left:0;
}
.status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.75rem;
  font-weight:600;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--accent);
  color:var(--accent);
  white-space:nowrap;
  justify-self:start;
}
.status.is-open{border-color:var(--accent-2);color:var(--accent-2);background:rgba(30,91,76,.07)}
.status.is-full{border-color:var(--line-strong);color:var(--ink-soft);background:transparent}

/* ---------- Flow list ---------- */
.flow-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
}
@media (min-width:960px){
  .flow-wrap{grid-template-columns:4fr 8fr;gap:56px;align-items:start}
}
.flow-side .sec-title{margin-top:0}
.flow-side p{
  margin-top:14px;
  font-size:.9375rem;
  color:var(--ink-soft);
  max-width:26em;
}
.flow-side .btn-ghost{margin-top:20px}
.flow-list{
  border-top:1px solid var(--line);
}
.flow-item{
  display:grid;
  grid-template-columns:44px minmax(0,1fr) 20px;
  gap:16px;
  align-items:start;
  padding:20px 12px;
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease),padding-left .28s var(--ease);
}
.flow-item:hover{
  background:var(--paper-2);
  padding-left:18px;
}
.flow-num{
  font-family:var(--font-mono);
  font-size:.9375rem;
  color:var(--accent);
  font-weight:600;
  letter-spacing:.04em;
  padding-top:2px;
}
.flow-item h3{
  font-size:1rem;
  font-weight:650;
  line-height:1.5;
}
.flow-item p{
  margin-top:6px;
  font-size:.875rem;
  color:var(--ink-soft);
  line-height:1.75;
}
.flow-item .arrow{
  color:var(--line-strong);
  font-size:1rem;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.flow-item:hover .arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- Feature split ---------- */
.feature-split{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:center;
}
@media (min-width:900px){
  .feature-split{grid-template-columns:6fr 6fr;gap:48px}
  .feature-split.is-reverse .feature-media{order:2}
}
.feature-media{
  border-radius:12px;
  overflow:hidden;
  box-shadow:inset 0 0 0 1px var(--line),var(--shadow-1);
}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .32s var(--ease);
}
.feature-media:hover img{transform:scale(1.03)}
.feature-body h3{
  font-size:clamp(1.25rem,2.2vw,1.6rem);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
  margin-top:14px;
}
.feature-body p{
  margin-top:14px;
  font-size:.9375rem;
  color:var(--ink-soft);
  line-height:1.85;
  max-width:34em;
}
.mini-stats{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
}
.mini-stat{
  padding:14px 20px 14px 0;
  margin-right:20px;
  border-right:1px solid var(--line);
}
.mini-stat:last-child{border-right:0;margin-right:0;padding-right:0}
.mini-stat b{
  display:block;
  font-family:var(--font-mono);
  font-size:1.25rem;
  font-weight:700;
  color:var(--ink);
  line-height:1.2;
}
.mini-stat span{font-size:.75rem;color:var(--ink-soft);letter-spacing:.04em}

/* ---------- Stat band ---------- */
.stat-band{
  background:var(--ink);
  color:var(--paper);
  border-radius:var(--radius-card);
  padding:clamp(28px,4vw,44px);
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  position:relative;
  overflow:hidden;
}
.stat-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:96px 100%;
  opacity:.5;
  pointer-events:none;
}
@media (min-width:768px){
  .stat-band{grid-template-columns:repeat(3,1fr);gap:0}
  .stat-band .stat-cell + .stat-cell{border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
}
.stat-cell{position:relative;z-index:1}
.stat-cell b{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(1.75rem,3.4vw,2.5rem);
  font-weight:700;
  color:var(--accent);
  line-height:1.1;
  letter-spacing:-.02em;
}
.stat-cell span{
  display:block;
  margin-top:8px;
  font-size:.875rem;
  color:rgba(246,244,239,.72);
}
.stat-band .band-title{
  grid-column:1/-1;
  font-size:1.0625rem;
  font-weight:700;
  letter-spacing:.01em;
  padding-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,.14);
  position:relative;
  z-index:1;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
}
@media (min-width:960px){
  .faq-wrap{grid-template-columns:4fr 8fr;gap:56px;align-items:start}
}
.faq-side p{
  margin-top:14px;
  font-size:.9375rem;
  color:var(--ink-soft);
  max-width:26em;
}
.faq-list{border-top:1px solid var(--line)}
.faq-item{
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background .28s var(--ease);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 8px 18px 14px;
  font-size:1.0625rem;
  font-weight:650;
  line-height:1.6;
  transition:padding-left .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  background:var(--accent);
  opacity:0;
  transition:opacity .28s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-item[open] summary{padding-left:20px}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-mono);
  font-size:.9375rem;
  color:var(--ink-soft);
  transition:color .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item summary:hover .faq-icon{color:var(--ink);border-color:var(--ink)}
.faq-item[open] .faq-icon{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.faq-answer{
  padding:0 24px 22px 20px;
  font-size:.9375rem;
  line-height:1.9;
  color:var(--ink-soft);
  max-width:42em;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);
  color:var(--paper);
  padding:clamp(44px,6vw,80px) 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:88px 100%;
  pointer-events:none;
}
.cta-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:960px){
  .cta-grid{grid-template-columns:6fr 5fr;gap:64px;align-items:start}
}
.cta-band .sec-index{color:var(--accent)}
.cta-band h2{
  font-size:clamp(1.6rem,3vw,2.25rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  max-width:14em;
}
.cta-band .cta-lead{
  margin-top:16px;
  font-size:.9375rem;
  color:rgba(246,244,239,.72);
  max-width:32em;
  line-height:1.9;
}
.cta-points{
  margin-top:26px;
  display:grid;
  gap:12px;
}
.cta-points li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:.9375rem;
  color:rgba(246,244,239,.9);
}
.cta-points li::before{
  content:"";
  width:8px;height:8px;
  margin-top:9px;
  background:var(--accent);
  flex-shrink:0;
  border-radius:1px;
}
.form-card{
  background:var(--paper-2);
  color:var(--ink);
  border-radius:var(--radius-card);
  padding:clamp(22px,3vw,28px);
  box-shadow:var(--shadow-2);
}
.form-card h3{
  font-size:1.0625rem;
  font-weight:700;
}
.form-card .form-sub{
  margin-top:6px;
  font-size:.8125rem;
  color:var(--ink-soft);
}
.field{margin-top:16px}
.field label{
  display:block;
  font-size:.8125rem;
  font-weight:600;
  margin-bottom:8px;
  color:var(--ink);
}
.field label .req{color:var(--accent);margin-left:2px}
.field input,
.field select,
.field textarea{
  width:100%;
  font-family:inherit;
  font-size:.9375rem;
  color:var(--ink);
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:6px;
  padding:12px 14px;
  min-height:44px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input::placeholder,
.field textarea::placeholder{color:#9AA0A8}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:inset 0 -2px 0 0 var(--accent);
}
.form-card .btn-primary{width:100%;margin-top:20px}
.form-tip{
  margin-top:12px;
  font-size:.75rem;
  color:var(--ink-soft);
  line-height:1.7;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:var(--paper);
  padding:clamp(44px,5vw,64px) 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:640px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--paper)}
.footer-brand .brand-mark::after{border-color:var(--accent)}
.footer-brand .brand-name{color:var(--paper);font-size:1.0625rem;font-weight:800}
.footer-desc{
  font-size:.875rem;
  line-height:1.85;
  color:rgba(246,244,239,.66);
  max-width:24em;
}
.footer-col h4{
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.1em;
  color:rgba(246,244,239,.95);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col ul li{font-size:.875rem;color:rgba(246,244,239,.66);line-height:1.7}
.footer-col ul li a{
  display:inline-block;
  color:rgba(246,244,239,.66);
  transition:color .22s var(--ease);
}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact-line{display:flex;gap:10px;align-items:baseline}
.footer-contact-line .lbl{
  font-size:.75rem;
  color:rgba(246,244,239,.42);
  letter-spacing:.06em;
  flex-shrink:0;
}
.footer-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:11px 20px;
  min-height:44px;
  border-radius:var(--radius-btn);
  box-shadow:inset 0 0 0 1px rgba(246,244,239,.35);
  font-size:.875rem;
  font-weight:600;
  color:var(--paper);
  transition:background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease);
}
.footer-cta:hover{background:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);color:#fff}
.footer-cta .arrow{transition:transform .24s var(--ease)}
.footer-cta:hover .arrow{transform:translateX(4px)}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);
  padding-top:20px;
  border-top:1px solid rgba(246,244,239,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  font-size:.75rem;
  color:rgba(246,244,239,.5);
  line-height:1.8;
}
.footer-bottom .mono{font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transform:none !important;
  }
}

/* roulang page: article */
:root{
    --ink:#14161A;
    --ink-soft:#4A5058;
    --paper:#F6F4EF;
    --paper-2:#FFFFFF;
    --line:#E3DED4;
    --line-strong:#C9C2B4;
    --accent:#E24B2A;
    --accent-2:#1E5B4C;
    --radius-card:14px;
    --radius-btn:8px;
    --radius-img:12px;
    --shadow-1:0 1px 2px rgba(20,22,26,.04);
    --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
    --ease:cubic-bezier(.2,.7,.3,1);
    --mono:ui-monospace,SFMono-Regular,Consolas,Menlo,monospace;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;}
  ::selection{background:rgba(226,75,42,.18);}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media(min-width:768px){.container{padding:0 32px;}}
  @media(min-width:1024px){.container{padding:0 48px;}}

  .mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  .skip-link{
    position:absolute;left:-9999px;top:0;z-index:200;
    background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:0 0 8px 0;
  }
  .skip-link:focus{left:0;}

  /* ---------- 顶部导航 ---------- */
  .topbar{
    position:sticky;top:0;z-index:60;
    padding:14px 0 0;
    transition:padding .3s var(--ease),background .3s var(--ease);
  }
  .topbar.is-stuck{padding-top:0;background:var(--paper);}
  .nav-shell{
    display:flex;align-items:center;gap:14px;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:10px 14px;
    box-shadow:var(--shadow-1);
    transition:border-radius .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .topbar.is-stuck .nav-shell{
    border-radius:0 0 var(--radius-card) var(--radius-card);
    box-shadow:0 10px 26px -20px rgba(20,22,26,.55);
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    position:relative;display:inline-block;width:26px;height:26px;border-radius:7px;
    background:var(--ink);flex-shrink:0;
  }
  .brand-mark::after{
    content:"";position:absolute;top:6px;right:6px;width:9px;height:9px;
    background:var(--accent);border-radius:2px;
  }
  .brand-name{font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;}

  .nav-links{margin-left:auto;display:none;align-items:center;gap:4px;}
  .nav-item{
    display:inline-flex;align-items:center;height:40px;padding:0 14px;
    border-radius:8px;border:1px solid transparent;
    font-size:.9375rem;font-weight:500;color:var(--ink-soft);
    white-space:nowrap;transition:all .26s var(--ease);
  }
  .nav-item:hover{background:var(--paper);border-color:var(--line);color:var(--ink);}
  .nav-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:600;}

  .nav-side{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .nav-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:0 11px;cursor:pointer;
    border:1px solid var(--line);border-radius:10px;background:var(--paper-2);
    transition:all .26s var(--ease);
  }
  .nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:all .26s var(--ease);}
  .nav-toggle:hover{border-color:var(--ink);}

  .mobile-panel{
    display:none;margin-top:10px;padding:12px;
    background:var(--paper-2);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-2);
  }
  .mobile-panel.is-open{display:block;}
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .mobile-link{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    min-height:48px;padding:12px 14px;border-radius:10px;
    border:1px solid var(--line);background:var(--paper);
    font-size:.9375rem;font-weight:600;transition:all .24s var(--ease);
  }
  .mobile-link:hover{border-color:var(--ink);background:var(--paper-2);}
  .mobile-cta{display:flex;width:100%;margin-top:10px;}

  @media(min-width:1024px){
    .nav-links{display:flex;}
    .nav-side{margin-left:0;}
    .nav-toggle{display:none;}
    .mobile-panel{display:none !important;}
  }
  @media(max-width:639px){
    .nav-cta-desktop{display:none;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);font-weight:600;cursor:pointer;
    border:1.5px solid transparent;transition:all .26s var(--ease);
    text-align:center;line-height:1.2;
  }
  .btn .arrow{transition:transform .26s var(--ease);}
  .btn:hover .arrow{transform:translateX(4px);}
  .btn-primary{background:var(--ink);color:var(--paper);padding:13px 22px;font-size:.9375rem;}
  .btn-primary:hover{background:var(--accent);color:#fff;}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);padding:13px 22px;font-size:.9375rem;}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);}
  .btn-sm{padding:10px 16px;font-size:.875rem;}
  .btn-link{
    display:inline-flex;align-items:center;gap:8px;position:relative;
    background:none;border:0;padding:0;font-weight:600;color:var(--ink);
  }
  .btn-link::after{
    content:"";position:absolute;left:0;bottom:-5px;height:2px;width:0;
    background:var(--accent);transition:width .3s var(--ease);
  }
  .btn-link:hover::after{width:100%;}
  .btn-link:hover .arrow{transform:translateX(4px);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding:26px 0 0;font-size:.8125rem;color:var(--ink-soft);
  }
  .breadcrumb a{transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--accent);}
  .breadcrumb .sep{color:var(--line-strong);}
  .breadcrumb .current{
    color:var(--ink-soft);max-width:340px;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }

  /* ---------- 文章标题区 ---------- */
  .article-head{max-width:820px;padding:34px 0 0;}
  .badge{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;
    border-radius:999px;background:rgba(30,91,76,.12);color:var(--accent-2);
    font-size:.75rem;font-weight:600;letter-spacing:.06em;
  }
  .article-head h1{
    margin:16px 0 0;
    font-size:clamp(1.75rem,3.6vw,2.55rem);
    line-height:1.24;font-weight:800;letter-spacing:-.02em;
    max-width:22ch;
  }
  .meta-line{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
    margin-top:22px;padding-bottom:22px;
    border-bottom:1px solid var(--line);
    font-size:.8125rem;color:var(--ink-soft);
  }
  .meta-line .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

  /* ---------- 正文 ---------- */
  .article-body{
    max-width:760px;padding:34px 0 12px;
    font-size:17px;line-height:1.9;color:var(--ink);
    word-break:break-word;
  }
  .article-body > *:first-child{margin-top:0;}
  .article-body p{margin:1.05em 0;}
  .article-body h2{
    position:relative;padding-left:16px;
    margin:2em 0 .7em;
    font-size:clamp(1.25rem,2vw,1.5rem);
    font-weight:700;line-height:1.45;letter-spacing:-.01em;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
    background:var(--accent);border-radius:2px;
  }
  .article-body h3{
    margin:1.6em 0 .6em;font-size:1.125rem;font-weight:700;line-height:1.5;
  }
  .article-body h4{
    margin:1.4em 0 .5em;font-size:1rem;font-weight:700;color:var(--ink);
  }
  .article-body strong{font-weight:700;color:var(--ink);}
  .article-body ul{list-style:none;padding-left:0;margin:1.05em 0;}
  .article-body ul li{position:relative;padding-left:22px;margin:.5em 0;}
  .article-body ul li::before{
    content:"";position:absolute;left:0;top:.75em;width:7px;height:7px;
    background:var(--accent);border-radius:1px;
  }
  .article-body ol{list-style:none;counter-reset:art-list;padding-left:0;margin:1.05em 0;}
  .article-body ol li{position:relative;padding-left:30px;margin:.5em 0;counter-increment:art-list;}
  .article-body ol li::before{
    content:counter(art-list,decimal-leading-zero);
    position:absolute;left:0;top:.35em;
    font-family:var(--mono);font-size:.8125rem;font-weight:600;color:var(--accent);
  }
  .article-body blockquote{
    margin:1.6em 0;padding:20px 22px;
    border-left:3px solid var(--ink);border-radius:0 var(--radius-img) var(--radius-img) 0;
    background:var(--paper-2);color:var(--ink-soft);font-size:1rem;
  }
  .article-body blockquote p:first-child{margin-top:0;}
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{
    max-width:100%;height:auto;margin:1.6em auto;
    border-radius:var(--radius-img);border:1px solid var(--line);
  }
  .article-body figure{margin:1.6em 0;}
  .article-body figcaption{
    margin-top:10px;text-align:center;font-size:.8125rem;color:var(--ink-soft);
  }
  .article-body a{
    color:var(--accent);text-decoration:underline;text-underline-offset:3px;
    text-decoration-thickness:1px;
  }
  .article-body a:hover{text-decoration-thickness:2px;}
  .article-body table{
    width:100%;border-collapse:collapse;margin:1.6em 0;
    font-size:.9375rem;border:1px solid var(--line);
  }
  .article-body th,.article-body td{
    border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;
  }
  .article-body thead th{background:var(--paper-2);font-weight:600;}
  .article-body hr{
    border:0;border-top:1px solid var(--line);margin:2em 0;
  }
  .article-body code{
    font-family:var(--mono);font-size:.875em;
    background:var(--paper-2);border:1px solid var(--line);
    border-radius:4px;padding:1px 6px;
  }

  .not-found{
    padding:40px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .not-found h2{margin:0 0 10px;font-size:1.25rem;font-weight:700;padding-left:0;}
  .not-found h2::before{display:none;}
  .not-found p{color:var(--ink-soft);font-size:.9375rem;margin:0 0 18px;}

  /* ---------- 相关推荐 ---------- */
  .related{margin-top:64px;padding-top:34px;border-top:1px solid var(--line);}
  .block-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:24px;}
  .block-head h2{margin:0;font-size:1.25rem;font-weight:700;letter-spacing:-.01em;}
  .block-head .num{font-family:var(--mono);color:var(--accent);font-size:.8125rem;margin-right:10px;font-weight:600;}
  .related-grid{display:grid;gap:16px;grid-template-columns:1fr;}
  .rel-card{
    display:flex;gap:14px;align-items:center;
    padding:14px;border:1px solid var(--line);border-radius:var(--radius-card);
    background:var(--paper-2);transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
  }
  .rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
  .rel-thumb{
    width:76px;height:76px;flex-shrink:0;overflow:hidden;border-radius:10px;
  }
  .rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
  .rel-card:hover .rel-thumb img{transform:scale(1.03);}
  .rel-text{min-width:0;}
  .rel-text h3{
    margin:0 0 6px;font-size:.9375rem;font-weight:650;line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rel-text .rel-meta{font-size:.75rem;color:var(--ink-soft);font-family:var(--mono);}
  @media(min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr);}}

  /* ---------- 深色 CTA 带 ---------- */
  .apply-band{
    position:relative;overflow:hidden;
    margin-top:56px;padding:36px 28px;
    background:var(--ink);color:var(--paper);border-radius:var(--radius-card);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  }
  .apply-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 64px);
    opacity:.5;
  }
  .apply-band > *{position:relative;z-index:1;}
  .apply-band h2{margin:0 0 8px;font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:700;letter-spacing:-.01em;}
  .apply-band p{margin:0;font-size:.875rem;color:rgba(246,244,239,.72);max-width:44ch;}
  .apply-band .btn-primary{background:var(--paper);color:var(--ink);}
  .apply-band .btn-primary:hover{background:var(--accent);color:#fff;}

  /* ---------- 返回入口 ---------- */
  .back-row{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}

  /* ---------- 移动端吸附条 ---------- */
  .sticky-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    display:flex;align-items:center;gap:10px;
    padding:9px 14px;
    background:rgba(246,244,239,.97);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -18px rgba(20,22,26,.45);
  }
  .sticky-bar .btn{flex:1;padding:12px 14px;font-size:.875rem;min-height:44px;}
  @media(min-width:1024px){.sticky-bar{display:none;}}
  @media(max-width:1023px){body{padding-bottom:72px;}}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--paper);margin-top:80px;padding:56px 0 0;}
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
  @media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px;}}
  .footer-brand{
    display:inline-flex;align-items:center;gap:10px;
    font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;
  }
  .footer-brand .brand-mark{background:var(--paper);}
  .footer-brand .brand-mark::after{background:var(--accent);}
  .footer-desc{
    margin:14px 0 0;max-width:34ch;
    font-size:.875rem;line-height:1.75;color:rgba(246,244,239,.68);
  }
  .footer-col h4{
    margin:0 0 14px;font-size:.8125rem;font-weight:600;
    letter-spacing:.12em;color:rgba(246,244,239,.55);
  }
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:.9375rem;}
  .footer-col a{transition:color .24s var(--ease);}
  .footer-col a:hover{color:var(--accent);}
  .footer-contact-line{display:flex;gap:10px;}
  .footer-contact-line .lbl{color:rgba(246,244,239,.5);flex-shrink:0;}
  .footer-cta{
    display:inline-flex;align-items:center;gap:8px;margin-top:18px;
    padding:11px 18px;border:1px solid rgba(246,244,239,.3);border-radius:var(--radius-btn);
    font-size:.9375rem;font-weight:600;transition:all .26s var(--ease);
  }
  .footer-cta:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
  .footer-cta:hover .arrow{transform:translateX(4px);}
  .footer-cta .arrow{transition:transform .26s var(--ease);}
  .footer-bottom{
    margin-top:44px;padding:20px 0 28px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px 24px;
    font-size:.8125rem;color:rgba(246,244,239,.55);
  }

  @media(prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .rel-card:hover,.btn:hover,.btn-primary:active{transform:none !important;}
    .rel-card:hover .rel-thumb img{transform:none !important;}
  }

/* roulang page: category2 */
:root{
  --ink:#14161A;
  --ink-soft:#4A5058;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#C9C2B4;
  --accent:#E24B2A;
  --accent-2:#1E5B4C;
  --r-card:14px;
  --r-btn:8px;
  --r-input:6px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04);
  --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){.container{padding:0 32px;}}
@media(min-width:1024px){.container{padding:0 48px;}}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0;
  background:linear-gradient(to bottom,var(--paper) 72%,rgba(246,244,239,0));
}
.nav-shell{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  padding:10px 12px;
  display:flex;
  align-items:center;
  gap:12px;
  transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-stuck .nav-shell{
  box-shadow:0 10px 24px -14px rgba(20,22,26,.35);
  border-color:var(--line-strong);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding:4px 6px;
  border-radius:8px;
}
.brand-mark{
  width:22px;height:22px;
  background:var(--ink);
  border-radius:4px;
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:6px;top:6px;
  width:10px;height:10px;
  border:2px solid var(--accent);
  border-radius:1px;
}
.brand-name{
  font-weight:800;
  font-size:19px;
  letter-spacing:-.01em;
}
.nav-links{
  display:none;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  margin-left:8px;
}
.nav-item{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  border-radius:8px;
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-soft);
  white-space:nowrap;
  transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.nav-item:hover{background:var(--paper);border-color:var(--ink);color:var(--ink);}
.nav-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.nav-cta{
  display:none;
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 22px;
  min-height:44px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .2s var(--ease);
  border:1.5px solid transparent;
}
.btn .arrow{transition:transform .3s var(--ease);display:inline-block;}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-block{width:100%;}
.burger{
  margin-left:auto;
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--paper);
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* mobile drawer */
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:80;
  display:none;
  background:rgba(20,22,26,.42);
}
.mobile-panel.is-open{display:block;}
.mobile-inner{
  position:absolute;
  right:0;top:0;
  width:min(360px,86vw);
  height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  padding:18px 18px 24px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.mobile-head{display:flex;align-items:center;justify-content:space-between;}
.mobile-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;
  background:var(--paper-2);
}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:10px;
  padding:12px;
  min-height:74px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:6px;
  font-weight:650;
  font-size:14px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.mobile-card:hover{border-color:var(--ink);background:var(--paper);}
.mobile-card .mc-arrow{font-size:12px;color:var(--ink-soft);}
.mobile-card.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.mobile-card.is-active .mc-arrow{color:var(--paper);}

@media(min-width:1024px){
  .nav-links{display:flex;}
  .nav-cta{display:inline-flex;}
  .burger{display:none;}
}

/* ============ HERO ============ */
.page-hero{
  padding:clamp(28px,5vw,56px) 0 clamp(36px,6vw,72px);
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:start;
}
.hero-copy .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  font-weight:700;
  color:var(--accent-2);
  background:rgba(30,91,76,.12);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:18px;
}
.hero-copy h1{
  font-size:clamp(2.2rem,5vw,4rem);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
  max-width:16em;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--accent);
}
.hero-lead{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-soft);
  max-width:36em;
}
.hero-actions{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-stats{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.stat{
  padding-right:22px;
  margin-right:22px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.stat .num{
  font-family:var(--mono);
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:-.02em;
  line-height:1.2;
}
.stat .lbl{
  font-size:13px;
  color:var(--ink-soft);
  line-height:1.5;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure .fig-tag{
  position:absolute;
  left:14px;top:14px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:10px;
  padding:8px 12px;
  font-size:12.5px;
  font-weight:650;
  color:var(--ink);
  box-shadow:var(--shadow-1);
}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:44px;}
  .hero-figure{aspect-ratio:16/11;}
}

/* anchor bar */
.anchor-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:14px 0 0;
  border-top:1px solid var(--line);
  margin-top:clamp(24px,4vw,40px);
}
.anchor-bar a{
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-soft);
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 14px;
  background:var(--paper-2);
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.anchor-bar a:hover{color:var(--accent);border-color:var(--accent);}

/* ============ SECTION ============ */
.section{
  padding:clamp(48px,7vw,96px) 0;
  border-top:1px solid var(--line);
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:clamp(24px,4vw,44px);
}
.seq{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
  display:block;
  margin-bottom:10px;
}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
  max-width:20em;
}
.section-sub{
  margin-top:12px;
  color:var(--ink-soft);
  font-size:15px;
  max-width:34em;
  line-height:1.8;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:650;
  font-size:15px;
  color:var(--ink);
  position:relative;
  padding-bottom:4px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--accent);
  transition:width .32s var(--ease);
}
.text-link:hover::after{width:100%;}
.text-link .arrow{transition:transform .3s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* two-column asymmetric */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,4vw,48px);
}
@media(min-width:1024px){
  .split{grid-template-columns:4fr 8fr;}
}
.side-title{
  font-size:clamp(1.4rem,2.2vw,1.9rem);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.side-note{
  margin-top:14px;
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.8;
  max-width:26em;
}
.side-actions{margin-top:22px;}

/* entry list */
.entry-list{
  border-top:1px solid var(--line);
}
.entry-row{
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:16px;
  align-items:start;
  padding:22px 16px;
  border-bottom:1px solid var(--line);
  border-radius:10px;
  transition:background .28s var(--ease),transform .28s var(--ease);
}
.entry-row:hover{background:var(--paper-2);transform:translateY(-2px);}
.entry-num{
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.04em;
  padding-top:3px;
  min-width:34px;
}
.entry-body h3{
  font-size:1.0625rem;
  font-weight:650;
  line-height:1.5;
}
.entry-body p{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}
.entry-meta{
  margin-top:10px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--accent-2);
  background:rgba(30,91,76,.12);
  border-radius:999px;
  padding:3px 11px;
  line-height:1.7;
}
.tag-warm{
  color:var(--accent);
  background:rgba(226,75,42,.1);
}
.tag-line{
  color:var(--ink-soft);
  background:transparent;
  border:1px solid var(--line-strong);
}
.entry-arrow{
  font-size:18px;
  color:var(--line-strong);
  transition:color .28s var(--ease),transform .28s var(--ease);
  padding-top:2px;
}
.entry-row:hover .entry-arrow{color:var(--accent);transform:translateX(4px);}

/* path cards */
.path-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
@media(min-width:768px){
  .path-grid{grid-template-columns:repeat(2,1fr);}
}
@media(min-width:1024px){
  .path-grid{grid-template-columns:5fr 4fr 3fr;align-items:end;}
}
.path-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  gap:10px;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.path-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.path-card .p-num{
  font-family:var(--mono);
  font-size:2.5rem;
  font-weight:700;
  color:var(--accent);
  line-height:1;
  letter-spacing:-.02em;
}
.path-card h3{font-size:1.125rem;font-weight:650;}
.path-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;}
.path-card .p-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--line-strong);
  font-size:13px;
  color:var(--ink-soft);
  font-family:var(--mono);
  letter-spacing:.02em;
}

/* feature band with image */
.feature-band{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(22px,4vw,44px);
  align-items:center;
}
@media(min-width:1024px){
  .feature-band{grid-template-columns:6fr 6fr;}
}
.feature-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/11;
  box-shadow:var(--shadow-1);
}
.feature-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.feature-figure:hover img{transform:scale(1.03);}
.bullet-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.bullet-list li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-soft);
}
.bullet-list li::before{
  content:"";
  width:9px;height:9px;
  background:var(--accent);
  margin-top:9px;
  border-radius:2px;
}
.bullet-list strong{color:var(--ink);font-weight:650;}

/* dark stat strip */
.stat-strip{
  background:var(--ink);
  border-radius:var(--r-card);
  padding:clamp(26px,4vw,40px);
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  margin-top:clamp(26px,4vw,44px);
}
@media(min-width:768px){
  .stat-strip{grid-template-columns:repeat(3,1fr);}
}
.stat-strip .item{
  border-left:1px solid rgba(255,255,255,.14);
  padding-left:20px;
}
.stat-strip .item:first-child{border-left:0;padding-left:0;}
.stat-strip .n{
  font-family:var(--mono);
  font-size:clamp(1.7rem,3vw,2.2rem);
  font-weight:700;
  color:var(--accent);
  line-height:1.15;
}
.stat-strip .t{
  color:rgba(246,244,239,.72);
  font-size:14px;
  margin-top:6px;
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:clamp(20px,4vw,44px);}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;}}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 4px 20px 14px;
  font-size:17px;
  font-weight:650;
  line-height:1.6;
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary .ic{
  flex:0 0 auto;
  width:28px;height:28px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  color:var(--ink-soft);
  transition:transform .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease);
}
.faq-item[open] summary .ic{transform:rotate(45deg);border-color:var(--accent);color:var(--accent);}
.faq-item[open] summary::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  background:var(--accent);
  border-radius:2px;
}
.faq-answer{
  padding:0 4px 22px 14px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}

/* ============ CTA / FORM ============ */
.cta-band{
  background:var(--ink);
  color:var(--paper);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 100%;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  padding:clamp(48px,7vw,88px) 0;
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(28px,4vw,52px);
}
@media(min-width:1024px){.cta-inner{grid-template-columns:6fr 5fr;align-items:start;}}
.cta-inner .seq{color:var(--accent);opacity:.95;animation:breathe 8s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.95;}50%{opacity:.55;}}
.cta-inner h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.015em;
  max-width:15em;
}
.cta-inner .cta-lead{
  margin-top:16px;
  color:rgba(246,244,239,.74);
  font-size:15.5px;
  line-height:1.85;
  max-width:30em;
}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  font-size:15px;
  color:rgba(246,244,239,.86);
  line-height:1.7;
}
.cta-points li::before{
  content:"";
  width:8px;height:8px;
  background:var(--accent);
  margin-top:9px;
  border-radius:2px;
}
.form-card{
  background:var(--paper-2);
  color:var(--ink);
  border-radius:var(--r-card);
  padding:clamp(22px,3vw,30px);
  border:1px solid rgba(255,255,255,.14);
}
.form-card h3{font-size:1.125rem;font-weight:700;}
.form-card .form-note{margin-top:8px;font-size:13.5px;color:var(--ink-soft);line-height:1.7;}
.field{margin-top:18px;}
.field label{
  display:block;
  font-size:13px;
  font-weight:600;
  margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:11px 12px;
  min-height:44px;
  font-size:15px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 2px 0 0 var(--accent);
}
.field textarea{min-height:88px;resize:vertical;}
.form-card .btn{margin-top:22px;}
.form-foot{margin-top:12px;font-size:12.5px;color:var(--ink-soft);line-height:1.7;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink);
  color:var(--paper);
  padding:clamp(44px,6vw,72px) 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--paper);}
.footer-brand .brand-mark::after{border-color:var(--accent);}
.footer-brand .brand-name{font-weight:800;font-size:19px;color:var(--paper);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(246,244,239,.66);max-width:24em;}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:rgba(246,244,239,.5);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14.5px;
  color:rgba(246,244,239,.86);
  transition:color .25s var(--ease);
}
.footer-col a:hover{color:var(--accent);}
.footer-contact-line{display:flex;gap:10px;font-size:14px;color:rgba(246,244,239,.86);}
.footer-contact-line .lbl{color:rgba(246,244,239,.5);flex:0 0 auto;}
.footer-col span{font-size:14px;color:rgba(246,244,239,.7);}
.footer-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:11px 18px;
  border-radius:var(--r-btn);
  border:1.5px solid rgba(246,244,239,.4);
  font-size:14px;
  font-weight:600;
  color:var(--paper);
  transition:background .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease);
}
.footer-cta:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.footer-cta .arrow{transition:transform .3s var(--ease);}
.footer-cta:hover .arrow{transform:translateX(4px);}
.footer-bottom{
  margin-top:clamp(32px,5vw,52px);
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:12.5px;
  color:rgba(246,244,239,.55);
}
.mono{font-family:var(--mono);letter-spacing:.02em;}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transform:none !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
    --ink:#14161A;
    --ink-soft:#4A5058;
    --paper:#F6F4EF;
    --paper-2:#FFFFFF;
    --line:#E3DED4;
    --line-strong:#C9C2B4;
    --accent:#E24B2A;
    --accent-2:#1E5B4C;
    --radius-card:14px;
    --radius-btn:8px;
    --shadow-1:0 1px 2px rgba(20,22,26,.04);
    --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
    --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  .page-body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;}
  button{font-family:inherit;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
  @media (min-width:1024px){.container{padding-left:48px;padding-right:48px;}}
  .mono{font-family:var(--mono);}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:12px 0 8px;background:var(--paper);}
  .nav-toggle-input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none;}
  .nav-card{
    display:flex;align-items:center;gap:16px;
    background:var(--paper-2);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:10px 14px;box-shadow:var(--shadow-1);
    transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .nav-card:hover{box-shadow:0 10px 22px -14px rgba(20,22,26,.22);border-color:var(--line-strong);}
  .brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none;}
  .brand-mark{
    width:24px;height:24px;border-radius:5px;background:var(--ink);position:relative;display:inline-block;flex:none;
  }
  .brand-mark::after{
    content:"";position:absolute;right:3px;bottom:3px;width:7px;height:7px;background:var(--accent);border-radius:2px;
  }
  .brand-name{font-size:1.0625rem;font-weight:800;letter-spacing:-.01em;}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
  .nav-item{
    display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:8px;
    font-size:.9375rem;color:var(--ink-soft);text-decoration:none;border:1px solid transparent;
    white-space:nowrap;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  }
  .nav-item:hover{background:var(--paper);border-color:var(--line-strong);color:var(--ink);}
  .nav-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
  .nav-cta{flex:none;}
  .nav-burger{
    display:none;width:44px;height:44px;margin-left:auto;align-items:center;justify-content:center;
    background:var(--paper-2);border:1px solid var(--line-strong);border-radius:8px;cursor:pointer;
  }
  .nav-burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
  .nav-burger span::before,.nav-burger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
  }
  .nav-burger span::before{top:-6px;}
  .nav-burger span::after{top:6px;}

  .nav-panel{display:none;margin-top:10px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:14px;box-shadow:var(--shadow-2);}
  .nav-toggle-input:checked ~ .nav-panel{display:block;}
  .nav-panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .nav-tile{
    display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:48px;
    padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);
    font-size:.9375rem;text-decoration:none;color:var(--ink);
    transition:border-color .2s var(--ease),background .2s var(--ease);
  }
  .nav-tile:hover{border-color:var(--ink);background:var(--paper-2);}
  .nav-tile.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink);}
  .nav-tile .arrow{font-size:.8rem;opacity:.7;}
  .nav-panel-cta{margin-top:12px;width:100%;justify-content:center;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;min-height:44px;border-radius:var(--radius-btn);
    font-size:.9375rem;font-weight:600;text-decoration:none;cursor:pointer;
    border:1.5px solid transparent;
    transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .18s var(--ease);
  }
  .btn .arrow{transition:transform .28s var(--ease);}
  .btn:hover .arrow{transform:translateX(4px);}
  .btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink);}
  .btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);}
  .btn-ghost:active{transform:translateY(1px);}
  .link-more{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    font-size:.9375rem;font-weight:600;color:var(--ink);text-decoration:none;padding-bottom:2px;
  }
  .link-more::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
    transition:width .3s var(--ease);
  }
  .link-more:hover::after{width:100%;}
  .link-more:hover{color:var(--accent);}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{
    outline:2px solid var(--accent);outline-offset:2px;
  }

  /* ---------- 页头 ---------- */
  .page-head{padding:clamp(26px,4.5vw,54px) 0 clamp(16px,2.5vw,26px);}
  .head-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:clamp(24px,4vw,48px);align-items:center;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:999px;font-size:12px;letter-spacing:.08em;
    background:rgba(30,91,76,.12);color:var(--accent-2);font-weight:600;
  }
  .badge-outline{background:transparent;border:1px solid var(--accent);color:var(--accent);}
  .page-title{
    font-size:clamp(2rem,4.2vw,3.1rem);font-weight:800;line-height:1.12;letter-spacing:-.02em;
    margin:16px 0 0;max-width:20ch;
  }
  .page-lead{margin:18px 0 0;font-size:1rem;line-height:1.85;color:var(--ink-soft);max-width:40ch;}
  .head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .head-media{
    border-radius:12px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:var(--paper-2);
    box-shadow:var(--shadow-1);
  }
  .head-media img{width:100%;height:100%;object-fit:cover;}
  .anchor-row{
    display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;
    margin-top:clamp(24px,3.5vw,40px);padding-top:16px;border-top:1px solid var(--line);
  }
  .anchor-row .lbl{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--ink-soft);}
  .anchor-row a{
    position:relative;font-size:.875rem;color:var(--ink-soft);text-decoration:none;padding-bottom:2px;
  }
  .anchor-row a::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .3s var(--ease);
  }
  .anchor-row a:hover{color:var(--ink);}
  .anchor-row a:hover::after{width:100%;}

  /* ---------- 板块 ---------- */
  .section{padding:clamp(40px,6vw,80px) 0;border-top:1px solid var(--line);}
  .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:clamp(24px,3.5vw,40px);}
  .sec-num{display:block;font-family:var(--mono);font-size:.8125rem;letter-spacing:.16em;color:var(--accent);font-weight:700;margin-bottom:10px;}
  .sec-title{margin:0;font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;letter-spacing:-.01em;line-height:1.28;}
  .sec-desc{margin:12px 0 0;color:var(--ink-soft);font-size:.9375rem;line-height:1.85;max-width:52ch;}

  /* ---------- 图文卡网格 ---------- */
  .gear-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .gear-card{
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
    display:flex;flex-direction:column;box-shadow:var(--shadow-1);
    transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
  }
  .gear-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
  .gear-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper);border-bottom:1px solid var(--line);}
  .gear-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
  .gear-card:hover .gear-media img{transform:scale(1.03);}
  .pos-top{object-position:50% 20%;}
  .pos-bottom{object-position:50% 80%;}
  .pos-left{object-position:20% 50%;}
  .pos-right{object-position:80% 50%;}
  .gear-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column;}
  .gear-title{margin:12px 0 0;font-size:1.125rem;font-weight:650;line-height:1.45;}
  .gear-text{margin:10px 0 0;font-size:.9375rem;line-height:1.8;color:var(--ink-soft);}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .tag{
    font-size:12px;letter-spacing:.04em;padding:4px 10px;border-radius:999px;
    border:1px solid var(--line);color:var(--ink-soft);background:var(--paper);
  }

  /* ---------- 对照表 ---------- */
  .compare-wrap{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper-2);}
  .compare-scroll{overflow-x:auto;}
  table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:.9375rem;}
  .compare thead th{
    background:var(--paper);text-align:left;font-weight:650;font-size:.8125rem;letter-spacing:.06em;
    color:var(--ink-soft);padding:0 18px;height:48px;border-bottom:1px solid var(--line);white-space:nowrap;
  }
  .compare tbody td{padding:0 18px;height:44px;border-bottom:1px solid var(--line);color:var(--ink-soft);}
  .compare tbody tr:last-child td{border-bottom:0;}
  .compare tbody tr{transition:background .2s var(--ease);}
  .compare tbody tr:hover{background:#FBFAF6;}
  .compare tbody td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;}
  .compare .num{font-family:var(--mono);letter-spacing:-.01em;color:var(--ink);}
  .table-note{margin:14px 0 0;font-size:.8125rem;color:var(--ink-soft);}

  /* ---------- 选购流程 ---------- */
  .steps{display:grid;grid-template-columns:1.15fr 1fr .95fr 1fr;border-top:1px solid var(--line);}
  .step{padding:clamp(22px,3vw,32px) 24px clamp(22px,3vw,32px) 0;border-right:1px solid var(--line);}
  .step:last-child{border-right:0;}
  .step-num{font-family:var(--mono);font-size:2.5rem;font-weight:700;line-height:1;color:var(--accent);letter-spacing:-.02em;}
  .step-title{margin:16px 0 0;font-size:1.0625rem;font-weight:650;line-height:1.45;}
  .step-text{margin:10px 0 0;font-size:.9375rem;line-height:1.8;color:var(--ink-soft);}

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:20px 0 20px 18px;position:relative;font-size:1.0625rem;font-weight:650;line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--accent);
    opacity:0;transition:opacity .24s var(--ease);
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-icon{position:relative;flex:none;width:28px;height:28px;border:1px solid var(--line-strong);border-radius:50%;}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);}
  .faq-icon::before{width:11px;height:1.5px;transform:translate(-50%,-50%);}
  .faq-icon::after{width:1.5px;height:11px;transform:translate(-50%,-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);}
  .faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-answer{padding:0 0 22px 18px;color:var(--ink-soft);font-size:.9375rem;line-height:1.9;max-width:74ch;}

  /* ---------- 深色 CTA ---------- */
  .cta-band{background:var(--ink);color:var(--paper);padding:clamp(42px,6vw,80px) 0;position:relative;overflow:hidden;}
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:72px 100%;opacity:.85;
  }
  .cta-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,4vw,56px);align-items:start;}
  .cta-title{margin:14px 0 0;font-size:clamp(1.6rem,2.8vw,2.35rem);font-weight:700;line-height:1.28;letter-spacing:-.01em;}
  .cta-lead{margin:16px 0 0;color:rgba(246,244,239,.74);font-size:.9375rem;line-height:1.85;max-width:44ch;}
  .cta-points{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:14px;}
  .cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;color:rgba(246,244,239,.9);}
  .cta-points li::before{
    content:"";flex:none;width:8px;height:8px;margin-top:9px;background:var(--accent);border-radius:2px;
  }
  .apply-card{
    background:var(--paper-2);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);
    padding:clamp(20px,3vw,28px);color:var(--ink);box-shadow:var(--shadow-2);
  }
  .apply-card h3{margin:0;font-size:1.125rem;font-weight:700;}
  .apply-card p{margin:8px 0 20px;font-size:.875rem;color:var(--ink-soft);line-height:1.75;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:.8125rem;font-weight:600;margin-bottom:8px;color:var(--ink);}
  .field input,.field select,.field textarea{
    width:100%;background:#fff;border:1px solid var(--line);border-radius:6px;
    padding:11px 12px;font-size:.9375rem;color:var(--ink);line-height:1.5;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field input,.field select{min-height:44px;}
  .field input::placeholder,.field textarea::placeholder{color:#9AA0A6;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent);
  }
  .form-submit{width:100%;margin-top:6px;}
  .form-tip{margin:12px 0 0;font-size:.75rem;color:var(--ink-soft);line-height:1.7;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--paper);padding:clamp(44px,6vw,72px) 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.15fr;gap:clamp(24px,3.5vw,40px);padding-bottom:clamp(32px,4vw,48px);}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--paper);}
  .footer-brand .brand-mark{background:var(--paper);}
  .footer-brand .brand-mark::after{background:var(--accent);}
  .footer-brand .brand-name{font-size:1.0625rem;font-weight:800;}
  .footer-desc{margin:16px 0 0;font-size:.875rem;line-height:1.9;color:rgba(246,244,239,.66);max-width:34ch;}
  .footer-col h4{margin:0 0 14px;font-size:.8125rem;letter-spacing:.1em;font-weight:600;color:rgba(246,244,239,.58);}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:.9375rem;color:rgba(246,244,239,.8);}
  .footer-col a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
  .footer-col a:hover{color:var(--accent);}
  .footer-contact-line{display:flex;gap:10px;}
  .footer-contact-line .lbl{color:rgba(246,244,239,.5);flex:none;}
  .footer-cta{
    display:inline-flex;align-items:center;gap:8px;margin-top:18px;min-height:44px;
    padding:10px 18px;border:1.5px solid rgba(226,75,42,.85);border-radius:var(--radius-btn);
    color:var(--paper);font-size:.9375rem;font-weight:600;text-decoration:none;
    transition:background .24s var(--ease),border-color .24s var(--ease);
  }
  .footer-cta:hover{background:var(--accent);border-color:var(--accent);}
  .footer-cta .arrow{transition:transform .28s var(--ease);}
  .footer-cta:hover .arrow{transform:translateX(4px);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
    display:flex;flex-wrap:wrap;gap:10px 28px;font-size:.8125rem;color:rgba(246,244,239,.58);
  }
  .footer-bottom .mono{letter-spacing:.02em;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-links,.nav-cta{display:none;}
    .nav-burger{display:flex;}
    .head-grid{grid-template-columns:1fr;gap:26px;}
    .head-media{aspect-ratio:16/9;order:2;}
    .page-title{max-width:none;}
    .page-lead{max-width:none;}
    .cta-inner{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .steps{grid-template-columns:1fr 1fr;}
    .step:nth-child(2){border-right:0;}
    .step:nth-child(3),.step:nth-child(4){border-top:1px solid var(--line);}
  }
  @media (min-width:1024px){
    .nav-panel{display:none !important;}
  }
  @media (max-width:768px){
    .gear-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;border-top:0;position:relative;padding-left:18px;}
    .steps::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line-strong);}
    .step{border-right:0;border-top:0;padding:0 0 26px 0;position:relative;}
    .step::before{
      content:"";position:absolute;left:-22px;top:14px;width:8px;height:8px;border-radius:50%;
      background:var(--paper);border:2px solid var(--accent);
    }
    .footer-grid{grid-template-columns:1fr;}
    .section-head{align-items:flex-start;}
  }
  @media (max-width:520px){
    .nav-panel-grid{grid-template-columns:1fr;}
    .head-actions .btn{width:100%;}
    .page-title{font-size:1.85rem;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important;}
    .gear-card:hover{transform:none;}
    .gear-card:hover .gear-media img{transform:none;}
    .btn:hover .arrow,.footer-cta:hover .arrow{transform:none;}
  }

/* roulang page: category4 */
:root{
  --ink:#14161A;
  --ink-soft:#4A5058;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#C9C2B4;
  --accent:#E24B2A;
  --accent-2:#1E5B4C;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-input:6px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04);
  --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --section-gap:clamp(60px,8vw,120px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,li{margin:0}
ul,ol{list-style:none;padding:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mono{font-family:var(--mono)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 48px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  padding:12px 0 0;
  transition:box-shadow .3s ease;
}
.nav-shell{
  display:flex;align-items:center;gap:12px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:10px 12px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease;
}
.site-header.is-stuck .nav-shell{box-shadow:0 12px 26px -16px rgba(20,22,26,.42)}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;
  padding:6px 8px;white-space:nowrap;
}
.brand-mark{
  position:relative;width:18px;height:18px;border-radius:3px;background:var(--ink);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:5px;background:var(--accent);border-radius:1px;
}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-item{
  display:inline-flex;align-items:center;min-height:40px;
  padding:10px 12px;border-radius:var(--radius-btn);
  font-size:.9375rem;color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.nav-item:hover{background:var(--paper);border-color:var(--line);color:var(--ink)}
.nav-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
@media(min-width:1024px){.nav-actions{margin-left:8px}}
.nav-cta{padding:12px 18px;font-size:.875rem}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;min-height:44px;
  border-radius:var(--radius-btn);
  font-weight:600;font-size:.9375rem;line-height:1;
  border:1.5px solid transparent;
  transition:background .28s cubic-bezier(.2,.7,.3,1),color .28s ease,border-color .28s ease,transform .18s ease;
}
.btn .arrow{transition:transform .28s cubic-bezier(.2,.7,.3,1)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;position:relative;
  font-weight:600;font-size:.9375rem;color:var(--ink);
  padding:8px 0;min-height:44px;
}
.btn-text::after{
  content:"";position:absolute;left:0;bottom:4px;width:0;height:2px;background:var(--accent);
  transition:width .3s cubic-bezier(.2,.7,.3,1);
}
.btn-text:hover::after{width:100%}
.btn-text:hover{color:var(--accent)}

/* ---------- 移动端菜单 ---------- */
.nav-toggle{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color .25s ease,background .25s ease;
}
.nav-toggle:hover{border-color:var(--ink);background:var(--paper)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{
  margin-top:10px;padding:14px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:1fr 1fr;gap:10px;
}
.mobile-panel[hidden]{display:none}
.mobile-item{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:.9375rem;color:var(--ink-soft);background:var(--paper-2);
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.mobile-item:hover,.mobile-item.is-active{background:var(--paper);border-color:var(--line-strong);color:var(--ink)}
.mobile-item .chev{color:var(--accent);font-family:var(--mono)}
.mobile-cta{grid-column:1/-1;width:100%;margin-top:4px}

/* ---------- 页头 ---------- */
.page-hero{padding:clamp(32px,5vw,64px) 0 clamp(28px,4vw,48px)}
.hero-grid{display:grid;gap:clamp(24px,4vw,48px);grid-template-columns:1fr;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr}}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:.8125rem;letter-spacing:.12em;
  color:var(--accent);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.hero-title{
  margin-top:16px;
  font-size:clamp(2rem,4.6vw,3.4rem);
  font-weight:800;line-height:1.1;letter-spacing:-.02em;
  max-width:18em;
}
.hero-sub{margin-top:18px;font-size:1.0625rem;color:var(--ink-soft);max-width:34em}
.hero-lead{margin-top:14px;font-size:.9375rem;color:var(--ink-soft);line-height:1.85;max-width:38em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/10;box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .media-badge{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:8px;
  padding:8px 12px;font-size:.75rem;font-weight:600;letter-spacing:.04em;color:var(--ink);
  box-shadow:var(--shadow-1);
}
.hero-media .media-badge .dot{width:8px;height:8px;border-radius:2px;background:var(--accent)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:.75rem;font-weight:600;letter-spacing:.05em;
  color:var(--accent-2);background:rgba(30,91,76,.12);
}
.tag-accent{color:var(--accent);background:rgba(226,75,42,.10)}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:1fr;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
@media(min-width:768px){.stat-strip{grid-template-columns:repeat(3,1fr)}}
.stat{padding:22px 24px;border-bottom:1px solid var(--line)}
.stat:last-child{border-bottom:0}
@media(min-width:768px){
  .stat{border-bottom:0;border-right:1px solid var(--line)}
  .stat:last-child{border-right:0}
}
.stat-num{font-family:var(--mono);font-size:2rem;font-weight:700;line-height:1;color:var(--accent)}
.stat-num small{font-size:.875rem;font-weight:600;color:var(--ink-soft);margin-left:6px;font-family:var(--sans)}
.stat-label{margin-top:8px;font-size:.875rem;color:var(--ink-soft)}

/* ---------- 板块 ---------- */
.section{padding:var(--section-gap) 0;border-top:1px solid var(--line)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:clamp(28px,4vw,48px);
}
.section-num{font-family:var(--mono);font-size:.875rem;letter-spacing:.14em;color:var(--accent);font-weight:600}
.section-title{margin-top:8px;font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;letter-spacing:-.01em;line-height:1.25}
.section-desc{margin-top:10px;font-size:.9375rem;color:var(--ink-soft);max-width:42em}

/* ---------- 案例交错 ---------- */
.case-list{display:block}
.case-row{
  display:grid;gap:clamp(20px,3vw,48px);grid-template-columns:1fr;align-items:center;
  padding:clamp(24px,3.4vw,40px) 0;
  border-top:1px dashed var(--line);
}
.case-row:first-child{border-top:0;padding-top:0}
@media(min-width:1024px){
  .case-row{grid-template-columns:1fr 1fr}
  .case-row.is-reverse .case-media{order:2}
}
.case-media{
  border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/10;box-shadow:var(--shadow-1);
}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s cubic-bezier(.2,.7,.3,1)}
.case-row:hover .case-media img{transform:scale(1.03)}
.case-title{margin-top:14px;font-size:1.375rem;font-weight:700;line-height:1.35;letter-spacing:-.01em}
.case-desc{margin-top:10px;font-size:.9375rem;color:var(--ink-soft);line-height:1.85}
.data-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.data-pill{
  background:var(--paper);border:1px solid var(--line);border-radius:8px;
  padding:8px 12px;font-size:.8125rem;color:var(--ink-soft);
}
.data-pill b{font-family:var(--mono);font-weight:700;color:var(--ink);margin-right:5px}
.case-link{margin-top:18px}

/* ---------- 协作重点（左标题右列表） ---------- */
.split{display:grid;gap:clamp(24px,4vw,56px);grid-template-columns:1fr}
@media(min-width:1024px){.split{grid-template-columns:4fr 8fr}}
.split-aside{position:relative}
@media(min-width:1024px){.split-aside{align-self:start;position:sticky;top:110px}}
.rows{border-top:1px solid var(--line)}
.row-item{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  padding:20px 16px;border-bottom:1px solid var(--line);
  border-radius:0;transition:background .28s ease,padding-left .28s ease;
}
.row-item:hover{background:var(--paper-2);padding-left:22px}
.row-index{font-family:var(--mono);font-size:.875rem;font-weight:700;color:var(--accent);padding-top:3px}
.row-title{font-size:1.0625rem;font-weight:650}
.row-text{margin-top:6px;font-size:.875rem;color:var(--ink-soft);line-height:1.8}

/* ---------- 流程卡 ---------- */
.flow-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:768px){.flow-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.flow-grid{grid-template-columns:1.15fr 1fr .96fr .88fr;align-items:end}}
.flow-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .32s cubic-bezier(.2,.7,.3,1),box-shadow .32s ease;
}
.flow-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.flow-num{font-family:var(--mono);font-size:2.5rem;font-weight:700;line-height:1;color:var(--accent)}
.flow-card h3{margin-top:14px;font-size:1.0625rem;font-weight:650}
.flow-card p{margin-top:8px;font-size:.875rem;color:var(--ink-soft);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq{border-bottom:1px solid var(--line);position:relative}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 20px 16px;cursor:pointer;list-style:none;
  font-size:1.0625rem;font-weight:650;line-height:1.5;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:transparent;border-radius:2px;transition:background .25s ease;
}
.faq[open] summary::before{background:var(--accent)}
.faq summary:hover{color:var(--accent)}
.faq-icon{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:999px;
  border:1px solid var(--line-strong);transition:background .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .25s ease,background .25s ease;
}
.faq-icon::before{width:12px;height:1.5px}
.faq-icon::after{width:1.5px;height:12px}
.faq[open] .faq-icon{background:var(--ink);border-color:var(--ink)}
.faq[open] .faq-icon::before,.faq[open] .faq-icon::after{background:var(--paper)}
.faq[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-body{padding:0 0 22px 16px;font-size:.9375rem;color:var(--ink-soft);line-height:1.85;max-width:56em}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
  padding:var(--section-gap) 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:88px 100%;
  opacity:.6;
}
.cta-grid{position:relative;display:grid;gap:clamp(28px,4vw,48px);grid-template-columns:1fr;align-items:start}
@media(min-width:1024px){.cta-grid{grid-template-columns:6fr 5fr}}
.cta-num{font-family:var(--mono);font-size:.875rem;letter-spacing:.14em;color:var(--accent);font-weight:600;animation:breathe 8s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.45}}
.cta-title{
  margin-top:10px;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;
  line-height:1.16;letter-spacing:-.02em;color:var(--paper);max-width:16em;
}
.cta-text{margin-top:16px;font-size:.9375rem;color:rgba(246,244,239,.72);max-width:34em;line-height:1.85}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:20px;font-size:.9375rem;color:rgba(246,244,239,.84)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:1px;background:var(--accent);
}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--paper-2);border-radius:var(--radius-card);
  padding:clamp(20px,3vw,28px);color:var(--ink);box-shadow:0 20px 40px -30px rgba(0,0,0,.6);
}
.form-card h3{font-size:1.125rem;font-weight:700;letter-spacing:-.01em}
.form-card .form-sub{margin-top:6px;font-size:.8125rem;color:var(--ink-soft)}
.form-field{margin-top:16px}
.form-field label{display:block;font-size:.8125rem;font-weight:600;margin-bottom:8px}
.form-field input,.form-field select{
  width:100%;min-height:44px;padding:12px 14px;
  background:var(--paper-2);color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field input::placeholder{color:#9AA0A8}
.form-field input:focus,.form-field select:focus{
  outline:none;border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent);
}
.form-field .field-hint{margin-top:6px;font-size:.75rem;color:var(--ink-soft)}
.form-submit{width:100%;margin-top:20px}
.form-note{margin-top:12px;font-size:.75rem;color:var(--ink-soft);line-height:1.7}
.form-ok{
  margin-top:14px;padding:12px 14px;border-radius:var(--radius-input);
  border:1px solid rgba(30,91,76,.35);background:rgba(30,91,76,.08);
  color:var(--accent-2);font-size:.8125rem;font-weight:600;
}
.form-ok[hidden]{display:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:clamp(48px,6vw,80px) 0 28px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.0625rem}
.footer-brand .brand-mark{background:var(--paper)}
.footer-brand .brand-mark::after{background:var(--accent)}
.footer-desc{margin-top:14px;font-size:.875rem;line-height:1.8;color:rgba(246,244,239,.7);max-width:32ch}
.footer-col h4{
  margin:0 0 14px;font-size:.8125rem;font-weight:600;
  letter-spacing:.1em;color:rgba(246,244,239,.5);
}
.footer-col ul{display:grid;gap:10px;font-size:.875rem}
.footer-col a{transition:color .25s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact-line{display:flex;gap:10px;font-size:.875rem;color:rgba(246,244,239,.82)}
.footer-contact-line .lbl{min-width:36px;color:rgba(246,244,239,.5)}
.footer-cta{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:.875rem;font-weight:600;color:var(--accent);
}
.footer-cta .arrow{transition:transform .28s cubic-bezier(.2,.7,.3,1)}
.footer-cta:hover .arrow{transform:translateX(4px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:.75rem;color:rgba(246,244,239,.55);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .flow-card:hover{transform:none}
  .case-row:hover .case-media img{transform:none}
}

/* roulang page: category5 */
:root{
    --ink:#14161A;
    --ink-soft:#4A5058;
    --paper:#F6F4EF;
    --paper-2:#FFFFFF;
    --line:#E3DED4;
    --line-strong:#C9C2B4;
    --accent:#E24B2A;
    --accent-2:#1E5B4C;
    --sans:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
    --radius:14px;
    --shadow-1:0 1px 2px rgba(20,22,26,.04);
    --shadow-2:0 14px 28px -12px rgba(20,22,26,.18);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  html body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
  @media (min-width:1024px){.container{padding-left:48px;padding-right:48px;}}

  .mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:14px 0 0;background:var(--paper);}
  .nav-shell{
    display:flex;align-items:center;gap:14px;
    background:var(--paper-2);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:10px 12px;
    min-height:64px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .3s var(--ease);
  }
  .site-header.is-stuck .nav-shell{box-shadow:var(--shadow-2);}
  .brand{display:flex;align-items:center;gap:10px;padding:4px 6px;border-radius:8px;flex:0 0 auto;}
  .brand-mark{width:20px;height:20px;background:var(--ink);border-radius:5px;position:relative;flex:0 0 auto;}
  .brand-mark::after{content:"";position:absolute;left:6px;top:6px;width:8px;height:8px;background:var(--accent);border-radius:2px;}
  .brand-name{font-weight:800;font-size:17px;letter-spacing:-.01em;}

  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
  .nav-item{
    padding:9px 12px;border-radius:8px;font-size:14px;font-weight:600;
    color:var(--ink-soft);border:1px solid transparent;
    transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
    white-space:nowrap;
  }
  .nav-item:hover{background:var(--paper);border-color:var(--line);color:var(--ink);}
  .nav-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
  .nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}

  .nav-toggle{
    display:none;width:44px;height:44px;margin-left:auto;
    border:1px solid var(--line);border-radius:8px;background:var(--paper-2);
    align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:1px;transition:transform .25s var(--ease);}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .mobile-panel{
    margin-top:10px;background:var(--paper-2);border:1px solid var(--line);
    border-radius:var(--radius);padding:12px;box-shadow:var(--shadow-2);
  }
  .mobile-panel[hidden]{display:none;}
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
  .mobile-card{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);
    font-size:14px;font-weight:600;min-height:44px;
    transition:border-color .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
  }
  .mobile-card:hover{border-color:var(--ink);}
  .mobile-card.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
  .mobile-cta{width:100%;margin-top:10px;}

  @media (max-width:1023px){
    .nav-links,.nav-actions{display:none;}
    .nav-toggle{display:flex;}
  }
  @media (min-width:1024px){
    .mobile-panel{display:none !important;}
  }

  /* ---------- buttons / tags ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:8px;font-weight:600;font-size:15px;
    padding:13px 22px;border:1.5px solid transparent;cursor:pointer;min-height:44px;
    transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .12s var(--ease);
  }
  .btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink);}
  .btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);}
  .btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
  .arrow{display:inline-block;transition:transform .28s var(--ease);}
  .btn:hover .arrow,.text-link:hover .arrow{transform:translateX(4px);}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;
    position:relative;padding-bottom:3px;
  }
  .text-link::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
    background:var(--accent);transition:width .32s var(--ease);
  }
  .text-link:hover::after{width:100%;}

  .tag{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
    letter-spacing:.08em;padding:5px 10px;border-radius:999px;line-height:1.4;
  }
  .tag-green{color:var(--accent-2);background:rgba(30,91,76,.12);}
  .tag-accent{color:var(--accent);background:rgba(226,75,42,.1);}
  .tag-outline{color:var(--ink-soft);border:1px solid var(--line-strong);}

  /* ---------- page head ---------- */
  .page-head{padding:clamp(36px,6vw,76px) 0 clamp(30px,5vw,54px);}
  .head-grid{display:grid;grid-template-columns:1fr;gap:clamp(24px,4vw,48px);}
  @media (min-width:1024px){
    .head-grid{grid-template-columns:1.12fr .88fr;align-items:center;}
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--ink-soft);
  }
  .eyebrow .mono{
    color:var(--accent);font-size:12px;padding:2px 8px;
    border:1px solid var(--line-strong);border-radius:6px;letter-spacing:.06em;
  }
  .page-head h1{
    margin-top:18px;
    font-size:clamp(2.2rem,5vw,3.4rem);
    font-weight:800;line-height:1.08;letter-spacing:-.02em;
    max-width:15em;
  }
  .lead{
    margin-top:18px;font-size:17px;line-height:1.85;color:var(--ink-soft);
    max-width:34em;
  }
  .head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
  .head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  @media (max-width:519px){
    .head-actions{flex-direction:column;}
    .head-actions .btn{width:100%;}
  }

  .media-frame{
    position:relative;border-radius:12px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--paper-2);
  }
  .media-frame img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    transition:transform .45s var(--ease);
  }
  .media-frame:hover img{transform:scale(1.03);}
  .media-card{
    position:absolute;left:14px;top:14px;max-width:80%;
    background:var(--paper-2);border:1px solid var(--line);border-radius:10px;
    padding:10px 12px;box-shadow:var(--shadow-1);
  }
  .media-card p{margin-top:6px;font-size:13px;line-height:1.5;color:var(--ink-soft);}

  /* ---------- anchor bar ---------- */
  .anchor-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.55);}
  .anchor-inner{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px;}
  .anchor-label{font-size:12px;letter-spacing:.1em;color:var(--ink-soft);margin-right:4px;}
  .anchor-inner a{
    font-size:14px;font-weight:600;padding:7px 13px;border-radius:999px;
    border:1px solid var(--line);background:var(--paper-2);color:var(--ink-soft);
    transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
    min-height:36px;display:inline-flex;align-items:center;
  }
  .anchor-inner a:hover{color:var(--ink);border-color:var(--line-strong);background:var(--paper);}

  /* ---------- stat strip ---------- */
  .stat-strip{padding:clamp(28px,4vw,44px) 0 0;}
  .stat-grid{
    display:grid;grid-template-columns:1fr;
    border:1px solid var(--line);border-radius:var(--radius);
    background:var(--paper-2);overflow:hidden;box-shadow:var(--shadow-1);
  }
  .stat-item{padding:22px 24px;border-top:1px solid var(--line);}
  .stat-item:first-child{border-top:0;}
  @media (min-width:768px){
    .stat-grid{grid-template-columns:repeat(3,1fr);}
    .stat-item{border-top:0;border-left:1px solid var(--line);}
    .stat-item:first-child{border-left:0;}
  }
  .stat-value{
    font-family:var(--mono);font-weight:700;color:var(--accent);
    font-size:clamp(1.6rem,3vw,2.05rem);line-height:1.1;
  }
  .stat-label{margin-top:8px;font-size:14px;color:var(--ink-soft);}

  /* ---------- sections ---------- */
  .section{padding:clamp(48px,7vw,88px) 0;border-top:1px solid var(--line);}
  .section--flush{border-top:0;}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(24px,4vw,40px);}
  .sec-num{font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent);}
  .sec-title{margin-top:10px;font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;line-height:1.22;letter-spacing:-.01em;}
  .sec-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-soft);max-width:32em;}

  /* ---------- faq ---------- */
  .faq-layout{display:grid;grid-template-columns:1fr;gap:clamp(24px,4vw,48px);}
  @media (min-width:1024px){
    .faq-layout{grid-template-columns:minmax(0,4fr) minmax(0,8fr);align-items:start;}
    .faq-aside{position:sticky;top:96px;}
  }
  .aside-list{margin-top:24px;border-top:1px solid var(--line);}
  .aside-list li{border-bottom:1px solid var(--line);}
  .aside-list a{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:14px 4px;font-size:15px;font-weight:600;color:var(--ink-soft);
    transition:color .25s var(--ease),padding-left .25s var(--ease);
  }
  .aside-list a:hover{color:var(--ink);padding-left:10px;}
  .aside-list .mono{font-size:12px;color:var(--accent);}
  .faq-aside .text-link{margin-top:20px;}

  .faq-body{display:grid;gap:20px;}
  .faq-group{
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
    padding:22px 22px 6px;box-shadow:var(--shadow-1);scroll-margin-top:100px;
  }
  .group-title{
    display:flex;align-items:center;gap:10px;
    font-size:1.0625rem;font-weight:650;padding-bottom:16px;
  }
  .group-title .mono{
    font-size:12px;color:var(--accent);border:1px solid var(--line-strong);
    border-radius:6px;padding:1px 7px;letter-spacing:.08em;
  }

  .faq-item{border-top:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    padding:16px 46px 16px 0;font-size:17px;font-weight:650;line-height:1.6;
    transition:color .25s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";position:absolute;right:0;top:15px;
    width:28px;height:28px;border:1px solid var(--line-strong);border-radius:50%;
    display:grid;place-items:center;font-family:var(--mono);font-size:15px;
    color:var(--ink-soft);transition:color .25s var(--ease),border-color .25s var(--ease);
  }
  .faq-item summary:hover{color:var(--accent);}
  .faq-item[open] summary::after{content:"−";color:var(--accent);border-color:var(--accent);}
  .faq-item[open]{
    background-image:linear-gradient(to right,var(--accent) 0,var(--accent) 3px,transparent 3px);
  }
  .faq-answer{
    padding:0 34px 18px 0;font-size:15px;line-height:1.85;color:var(--ink-soft);
  }
  .faq-answer p{margin:0;}

  /* ---------- tips ---------- */
  .tips-layout{display:grid;grid-template-columns:1fr;gap:clamp(24px,4vw,48px);}
  @media (min-width:1024px){
    .tips-layout{grid-template-columns:minmax(0,4fr) minmax(0,8fr);align-items:start;}
  }
  .tip-list{border-top:1px solid var(--line);}
  .tip-row{
    display:grid;grid-template-columns:auto 1fr;gap:18px;
    padding:22px 4px;border-bottom:1px solid var(--line);
    transition:background .25s var(--ease),padding-left .25s var(--ease);
  }
  .tip-row:hover{background:var(--paper-2);padding-left:14px;}
  .tip-num{font-family:var(--mono);font-size:1.35rem;font-weight:700;color:var(--accent);line-height:1.5;}
  .tip-row h3{font-size:1.0625rem;font-weight:650;line-height:1.5;}
  .tip-row p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

  /* ---------- contact band ---------- */
  .contact-band{padding:clamp(40px,6vw,72px) 0;border-top:1px solid var(--line);}
  .contact-card{
    display:grid;grid-template-columns:1fr;gap:22px;align-items:center;
    padding:clamp(24px,4vw,36px);background:var(--paper-2);
    border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);
  }
  @media (min-width:900px){.contact-card{grid-template-columns:1fr auto;}}
  .contact-title{font-size:clamp(1.3rem,2.2vw,1.75rem);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
  .contact-desc{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-soft);max-width:38em;}
  .contact-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .contact-actions{display:flex;flex-wrap:wrap;gap:12px;}
  @media (max-width:519px){
    .contact-actions{flex-direction:column;}
    .contact-actions .btn{width:100%;}
  }

  /* ---------- apply ---------- */
  .apply{
    position:relative;overflow:hidden;
    background:var(--ink);color:var(--paper);
    padding:clamp(48px,7vw,88px) 0;scroll-margin-top:90px;
  }
  .apply::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:110px 100%;opacity:.55;
  }
  .apply-grid{position:relative;display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px);}
  @media (min-width:1024px){
    .apply-grid{grid-template-columns:minmax(0,6fr) minmax(0,5fr);align-items:start;}
  }
  .apply .sec-num{color:var(--accent);}
  .apply h2{
    margin-top:10px;font-size:clamp(1.6rem,3vw,2.35rem);
    font-weight:800;line-height:1.2;letter-spacing:-.015em;color:var(--paper);
  }
  .apply-lead{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(246,244,239,.72);max-width:30em;}
  .point-list{margin-top:26px;display:grid;gap:12px;}
  .point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7;color:rgba(246,244,239,.86);}
  .point-list li::before{content:"";width:8px;height:8px;margin-top:9px;background:var(--accent);flex:0 0 auto;}

  .form-card{
    background:var(--paper-2);color:var(--ink);border-radius:var(--radius);
    padding:clamp(22px,3vw,30px);box-shadow:var(--shadow-2);
  }
  .form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  @media (min-width:640px){
    .form-grid{grid-template-columns:1fr 1fr;}
    .form-field--full{grid-column:1 / -1;}
  }
  .form-field label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;}
  .form-field input,.form-field select,.form-field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:6px;
    background:var(--paper-2);color:var(--ink);font-size:15px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
    border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent);outline:none;
  }
  .form-field textarea{min-height:96px;resize:vertical;}
  .form-note{font-size:13px;line-height:1.7;color:var(--ink-soft);}
  .form-submit{width:100%;}
  .form-status{
    display:none;margin-top:12px;font-size:14px;font-weight:600;color:var(--accent-2);
  }
  .form-status.is-visible{display:block;}

  /* ---------- footer ---------- */
  .site-footer{background:var(--ink);color:var(--paper);padding:clamp(44px,6vw,72px) 0 24px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:768px){
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
  }
  .footer-brand{display:flex;align-items:center;gap:10px;}
  .site-footer .brand-mark{background:var(--paper);}
  .site-footer .brand-mark::after{background:var(--accent);}
  .footer-brand .brand-name{font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--paper);}
  .footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(246,244,239,.7);max-width:32em;}
  .footer-col h4{
    font-size:13px;font-weight:600;letter-spacing:.1em;
    color:rgba(246,244,239,.55);margin-bottom:14px;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{font-size:14.5px;color:rgba(246,244,239,.82);transition:color .2s var(--ease);}
  .footer-col a:hover{color:var(--accent);}
  .footer-contact-line{display:flex;gap:10px;font-size:14px;color:rgba(246,244,239,.82);}
  .footer-contact-line .lbl{color:rgba(246,244,239,.5);min-width:34px;}
  .footer-cta{
    display:inline-flex;align-items:center;gap:8px;margin-top:16px;
    padding:10px 16px;border:1px solid rgba(255,255,255,.28);border-radius:8px;
    font-size:14px;font-weight:600;color:var(--paper);min-height:44px;
    transition:background .25s var(--ease),border-color .25s var(--ease);
  }
  .footer-cta:hover{background:var(--accent);border-color:var(--accent);}
  .footer-cta:hover .arrow{transform:translateX(4px);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;
    margin-top:clamp(32px,5vw,48px);padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(246,244,239,.55);
  }
  .footer-bottom .mono{color:rgba(246,244,239,.72);}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
    .media-frame:hover img,.btn:hover .arrow,.footer-cta:hover .arrow{transform:none !important;}
  }