/* roulang page: index */
:root{
  --ink:#0F2B26;
  --ink-2:#17453B;
  --ink-soft:#2C5449;
  --accent:#FF5A1F;
  --accent-dark:#E24A12;
  --cyan:#2FD3B0;
  --bg:#F6F4EF;
  --paper:#FFFFFF;
  --warm:#EFEAE0;
  --line:#E4E0D8;
  --line-strong:#D6D0C4;
  --text:#2A2F2D;
  --muted:#6B7370;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,43,38,.06);
  --shadow-2:0 12px 32px rgba(15,43,38,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"Inter","SFMono-Regular",Consolas,monospace;
  --gutter:24px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);font-weight:800;line-height:1.14;letter-spacing:-.02em}
h1{font-size:clamp(28px,4.4vw,56px);font-weight:900;line-height:1.08}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:18px;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,90,31,.22)}

/* ---------- 布局基础 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--sec) 0}
.section--paper{background:var(--paper)}
.section--warm{background:var(--warm)}
.section--ink{background:var(--ink);color:#EDE9E0}
.section--ink h2,.section--ink h3{color:#F6F4EF}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .eyebrow{margin-bottom:14px}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px}
.section--ink .section-head p{color:rgba(246,244,239,.72)}
.divider{height:1px;background:var(--line);border:0;margin:0}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;font-weight:700;
  color:var(--accent);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block}
.eyebrow--light{color:var(--cyan)}
.eyebrow--light::before{background:var(--cyan)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background-color .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(15,43,38,.26);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#F6F4EF;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:transparent;border-color:rgba(246,244,239,.42);color:#F6F4EF}
.btn-light:hover{background:#F6F4EF;border-color:#F6F4EF;color:var(--ink);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled]{background:#DCD8CF;color:#8B8F8C;cursor:not-allowed;box-shadow:none;transform:none;border-color:transparent}

.link-underline{position:relative;display:inline-block;font-weight:600}
.link-underline::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);
}
.link-underline:hover::after{transform:scaleX(1)}
.link-underline:hover{color:var(--accent)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.progress-wrap{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent}
.progress-bar{height:2px;width:0;background:var(--accent);transition:width .12s linear}
.nav-wrap{display:flex;align-items:center;gap:22px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;font-family:var(--serif);font-weight:900;font-size:19px;color:var(--ink);letter-spacing:-.02em}
.logo-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:var(--ink);flex-shrink:0;overflow:hidden;
}
.logo-mark::before{content:"";position:absolute;inset:6px 6px auto 6px;height:2px;background:var(--cyan)}
.logo-mark::after{content:"";position:absolute;left:6px;bottom:6px;width:9px;height:9px;border-radius:2px;background:var(--accent)}

.nav-search{
  position:relative;display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:520px;height:44px;padding:0 14px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.14);transform:translateY(-1px)}
.nav-search svg{flex-shrink:0;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:1.8}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px}
.nav-search input::placeholder{color:#9AA09C}
.nav-search .kbd{
  display:none;font-family:var(--mono);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;
}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a.nav-link{
  position:relative;padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-soft);white-space:nowrap;
  transition:background-color .2s,color .2s;
}
.nav-links a.nav-link:hover{background:rgba(15,43,38,.06);color:var(--ink)}
.nav-links a.nav-link.active{color:var(--ink);font-weight:700}
.nav-links a.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--accent);border-radius:2px;
}
.nav-cta{margin-left:8px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  align-items:center;justify-content:center;flex-shrink:0;background:var(--paper);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .25s var(--ease)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.pill-row{display:flex;align-items:center;gap:8px;padding:0 0 12px;overflow-x:auto;scrollbar-width:none}
.pill-row::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);
  font-size:13px;color:var(--ink-soft);white-space:nowrap;
  transition:border-color .2s,color .2s,background-color .2s;
}
.pill:hover{border-color:var(--ink);color:var(--ink)}
.pill.is-current{background:var(--ink);border-color:var(--ink);color:#F6F4EF}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 var(--sec);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(15,43,38,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.6;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero-copy h1{margin:16px 0 20px;max-width:15em}
.hero-sub{max-width:34em;color:var(--muted);font-size:17px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.stat-num{
  font-family:var(--mono);font-size:30px;font-weight:600;color:var(--ink);
  letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums;
}
.stat-num em{font-style:normal;font-size:16px;color:var(--cyan);margin-left:2px}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.02em}

.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/5;box-shadow:var(--shadow-2)}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,43,38,.18) 0%,rgba(15,43,38,.72) 100%);
}
.hero-figure .grid-line{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(246,244,239,.14) 1px,transparent 1px),
                   linear-gradient(rgba(246,244,239,.14) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 62%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 62%);
}
.hero-figure figcaption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:3;
  color:#F6F4EF;font-size:14px;line-height:1.6;
}
.hero-figure figcaption strong{display:block;font-family:var(--serif);font-size:18px;margin-bottom:4px}
.hero-figure figcaption span{color:rgba(246,244,239,.74)}

/* ---------- 品牌主张条 ---------- */
.statement{padding:52px 0}
.statement .container{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.statement p{font-family:var(--serif);font-size:clamp(20px,2.4vw,26px);font-weight:700;color:#F6F4EF;max-width:24em;line-height:1.4}

/* ---------- 故事 / 理念 ---------- */
.story-grid{display:grid;grid-template-columns:180px 1fr;gap:48px;align-items:start}
.stage-list{display:flex;flex-direction:column;gap:8px;position:sticky;top:120px}
.stage-item{
  display:flex;align-items:center;gap:10px;padding:10px 0;
  font-size:13px;letter-spacing:.14em;color:var(--muted);font-weight:700;
}
.stage-item i{width:8px;height:8px;border-radius:50%;background:var(--line-strong);flex-shrink:0}
.stage-item.is-active{color:var(--ink)}
.stage-item.is-active i{background:var(--accent)}
.story-block{padding:26px 0;border-top:1px solid var(--line)}
.story-block:first-child{border-top:0;padding-top:0}
.story-block h3{margin-bottom:10px}
.story-block p{color:var(--muted);max-width:48em}
.story-block ul{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(47,211,176,.12);color:#136B5A;
  font-size:13px;font-weight:500;
}

/* ---------- 精选内容卡 ---------- */
.feature-grid{display:grid;grid-template-columns:1.42fr 1fr;gap:24px;align-items:start}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.card-media{position:relative;overflow:hidden;background:#E7E3DA}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-lg .card-media{aspect-ratio:16/10}
.card-sm .card-media{aspect-ratio:16/10}
.card-body{display:flex;flex-direction:column;gap:10px;padding:22px 24px 24px;flex:1}
.card-lg .card-body{padding:26px 28px 28px}
.card-title{font-size:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-sm .card-title{font-size:17px}
.card-sum{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;font-size:13px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(255,90,31,.10);color:#B93B0C;font-size:12px;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;
}
.badge--cyan{background:rgba(47,211,176,.14);color:#11705E}
.arrow{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--ink);transition:transform .28s var(--ease),color .25s;
}
.card:hover .arrow{transform:translateX(4px);color:var(--accent)}
.feature-side{display:grid;gap:24px;padding-top:34px}

/* ---------- 最新信息列表 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:96px minmax(0,1fr) 116px 22px;
  align-items:center;gap:20px;padding:22px 10px;border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease),padding-left .25s var(--ease);
}
.news-row:hover{background:#FBFAF7;padding-left:16px}
.news-main{display:flex;flex-direction:column;gap:6px;min-width:0}
.news-title{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-sum{color:var(--muted);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-date{font-size:13px;color:var(--muted);font-family:var(--mono)}
.news-row:hover .arrow{transform:translateX(4px);color:var(--accent)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:var(--paper);text-align:center;
}
.empty-state svg{width:40px;height:40px;stroke:var(--muted);fill:none;stroke-width:1.6}
.empty-state p{color:var(--muted);font-size:15px}
.empty-search{display:flex;gap:8px;width:min(420px,100%);margin-top:6px}
.empty-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--bg);outline:none;font-size:15px;
}
.empty-search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.12)}

/* ---------- 信任背书 ---------- */
.trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.trust-nums{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 40px}
.trust-nums li{display:flex;flex-direction:column;gap:4px;padding-left:16px;border-left:2px solid var(--cyan)}
.trust-nums .stat-num{font-size:clamp(28px,3.4vw,38px)}
.partners{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.partner{
  background:var(--bg);padding:22px 20px;text-align:center;
  font-size:14px;color:#8C938F;letter-spacing:.06em;font-weight:500;
  transition:color .25s,background-color .25s;
}
.partner:hover{color:var(--ink);background:var(--paper)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;gap:18px;padding:22px 4px;
  cursor:pointer;list-style:none;font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-index{font-family:var(--mono);font-size:13px;color:var(--muted);flex-shrink:0}
.faq-sign{
  position:relative;margin-left:auto;width:18px;height:18px;flex-shrink:0;
  transition:transform .3s var(--ease);
}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--ink);border-radius:2px}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-sign{transform:rotate(45deg)}
.faq-item[open] .faq-sign::before,.faq-item[open] .faq-sign::after{background:var(--accent)}
.faq-answer{padding:0 4px 24px 46px;color:var(--muted);font-size:16px;animation:fadeUp .38s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 订阅 CTA ---------- */
.cta-band{padding:80px 0}
.cta-inner{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}
.cta-inner h2{color:#F6F4EF}
.cta-inner p{margin-top:14px;color:rgba(246,244,239,.74);max-width:32em}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(246,244,239,.28);background:rgba(246,244,239,.06);color:#F6F4EF;
  outline:none;font-size:15px;transition:border-color .25s,box-shadow .25s,background-color .25s;
}
.subscribe-form input::placeholder{color:rgba(246,244,239,.5)}
.subscribe-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.18);background:rgba(246,244,239,.1)}
.subscribe-form input.is-error{border-color:#FF7A5A}
.form-note{margin-top:12px;font-size:13px;color:rgba(246,244,239,.6);min-height:20px}
.form-note.is-error{color:#FFB3A0}
.form-note.is-ok{color:var(--cyan)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.78);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#F6F4EF;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--ink-2)}
.footer-brand p{font-size:14px;max-width:26em;color:rgba(246,244,239,.66)}
.footer-col h4{
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.16em;
  color:rgba(246,244,239,.55);text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:15px;color:rgba(246,244,239,.82);transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-sub p{font-size:14px;margin-bottom:14px;color:rgba(246,244,239,.66)}
.footer-sub .subscribe-form input{background:rgba(246,244,239,.08)}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.14);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,244,239,.55);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sec:80px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  :root{--sec:64px;--gutter:20px}
  .nav-search{max-width:none}
  .nav-links a.nav-link{padding:8px 10px;font-size:14px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{aspect-ratio:16/10}
  .hero-copy h1{max-width:none}
  .story-grid{grid-template-columns:1fr;gap:28px}
  .stage-list{position:static;flex-direction:row;flex-wrap:wrap;gap:18px}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{padding-top:0;grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-grid{grid-template-columns:1fr;gap:40px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:767px){
  body{font-size:16px}
  :root{--sec:48px}
  .menu-toggle{display:inline-flex}
  .nav-wrap{flex-wrap:wrap;gap:12px;padding:12px 0}
  .logo{font-size:17px}
  .nav-search{order:3;width:100%;flex-basis:100%;max-width:none}
  .nav-links{
    order:4;width:100%;flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:8px 0 4px;border-top:1px solid var(--line);display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a.nav-link{padding:12px 10px;font-size:15px}
  .nav-links a.nav-link.active::after{display:none}
  .nav-links a.nav-link.active{background:rgba(255,90,31,.08);color:var(--ink)}
  .nav-cta{margin:8px 0 4px;width:100%}
  .pill-row{padding-bottom:10px}
  .hero{padding:44px 0 var(--sec)}
  .hero-stats{gap:24px}
  .stat-num{font-size:24px}
  .feature-side{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr;gap:8px;padding:18px 8px}
  .news-title,.news-sum{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .news-date{grid-row:3}
  .news-row .arrow{display:none}
  .trust-nums{grid-template-columns:1fr 1fr;gap:22px}
  .partners{grid-template-columns:1fr}
  .faq-answer{padding-left:0}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  h1{font-size:26px}
  h2{font-size:22px}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-figure{aspect-ratio:1/1}
  .trust-nums{grid-template-columns:1fr}
  .stat-num{font-size:22px}
}

/* roulang page: article */
:root{
  --ink:#0F2B26;
  --ink-2:#17453B;
  --accent:#FF5A1F;
  --accent-dark:#E1440E;
  --cyan:#2FD3B0;
  --cream:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E0D8;
  --text:#2A2F2D;
  --muted:#6B7370;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,43,38,.06);
  --shadow-2:0 12px 32px rgba(15,43,38,.10);
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --pad-section:96px;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--cream);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--accent)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul{padding-left:1.1em}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);letter-spacing:-.02em;line-height:1.12;margin:0}
p{margin:0 0 1em}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.progress-track{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent}
.progress-bar{height:2px;width:0;background:var(--accent);transition:width .12s linear}
.header-main{
  display:grid;
  grid-template-columns:auto minmax(220px,1fr) auto;
  align-items:center;
  gap:20px;
  padding:14px 0;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:700;font-size:19px;color:var(--ink);
  letter-spacing:-.02em;white-space:nowrap;
}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:22px;height:22px;border:2px solid var(--ink);border-radius:6px;
  position:relative;flex:none;
}
.logo-mark::after{
  content:"";position:absolute;inset:5px;background:var(--accent);border-radius:2px;
}
.nav-search{
  position:relative;display:flex;align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
  padding:0 14px;
  height:44px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  border-color:var(--accent);
  transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(15,43,38,.08);
}
.nav-search svg{flex:none;width:17px;height:17px;stroke:var(--muted);fill:none;stroke-width:1.7}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;height:100%;
  padding:0 10px;font-size:15px;outline:none;
}
.nav-search input::placeholder{color:#9AA29E}
.kbd{
  flex:none;font-family:var(--mono);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 7px;background:var(--cream);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink);padding:8px 12px;border-radius:999px;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:#EDEAE2;color:var(--ink)}
.nav-link.active{color:var(--accent);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--accent);border-radius:2px;
}
.nav-toggle{
  display:none;font-size:15px;border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;background:var(--card);color:var(--ink);
}
.chip-row{
  display:flex;flex-wrap:wrap;gap:8px;padding:0 0 14px;
}
.chip{
  font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:999px;
  padding:5px 13px;background:var(--card);transition:all .2s ease;
}
.chip:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-1px)}
.chip.is-current{color:var(--accent);border-color:rgba(255,90,31,.45);background:rgba(255,90,31,.06)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--cream)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{background:#D7D4CD;color:#8B918E;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- page head ---------- */
.page-head{
  background:
    linear-gradient(180deg,rgba(15,43,38,.94),rgba(15,43,38,.82)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color:var(--cream);
  padding:52px 0 56px;
  position:relative;
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.breadcrumb{
  position:relative;font-size:13px;color:rgba(246,244,239,.72);margin-bottom:26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumb a{color:rgba(246,244,239,.85);border-bottom:1px solid rgba(246,244,239,.28)}
.breadcrumb a:hover{color:#fff;border-color:var(--accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;opacity:.9}
.page-head h1{
  position:relative;color:#fff;font-size:clamp(28px,4vw,46px);font-weight:800;
  line-height:1.15;max-width:900px;
}
.article-meta{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:22px;font-size:14px;color:rgba(246,244,239,.78);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--cyan);display:inline-block}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(47,211,176,.16);color:var(--cyan);font-size:13px;border:1px solid rgba(47,211,176,.35);
}

/* ---------- article body ---------- */
.section{padding:var(--pad-section) 0}
.section-tight{padding:64px 0}
.article-wrap{
  max-width:760px;margin:0 auto;padding:0 24px;
}
.cover-figure{margin:0 0 40px}
.cover-figure img{border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.cover-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px}
.prose{font-size:17px;line-height:1.85;color:var(--text)}
.prose h2{
  font-size:26px;margin:44px 0 16px;padding-left:16px;position:relative;line-height:1.3;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--accent);
}
.prose h3{font-size:20px;margin:32px 0 12px}
.prose p{margin:0 0 18px}
.prose a{color:var(--ink);border-bottom:1px solid var(--accent);padding-bottom:1px}
.prose a:hover{color:var(--accent)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:1.25em}
.prose li{margin:8px 0}
.prose blockquote{
  margin:26px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:#F1EEE7;border-radius:0 var(--radius-img) var(--radius-img) 0;color:#3C4441;
}
.prose img{margin:24px 0;border-radius:var(--radius-img)}
.prose figure{margin:26px 0}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.prose th,.prose td{border:0;border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.prose th{font-family:var(--serif);color:var(--ink);font-weight:700}
.prose code{font-family:var(--mono);font-size:.92em;background:#EFEBE3;padding:2px 6px;border-radius:5px}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:44px 0 0}
.tag{
  font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;background:var(--card);transition:all .2s ease;
}
.tag:hover{color:var(--accent);border-color:rgba(255,90,31,.5);transform:translateY(-1px)}

.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px;
}
.post-nav a{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;display:flex;flex-direction:column;gap:6px;transition:all .22s ease;
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D3C8;color:var(--ink)}
.post-nav .dir{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.post-nav .ttl{font-family:var(--serif);font-size:16px;color:var(--ink);line-height:1.4}
.post-nav .next{align-items:flex-end;text-align:right}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state svg{width:44px;height:44px;margin:0 auto 16px;stroke:var(--muted);fill:none;stroke-width:1.5}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- related ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.8vw,32px)}
.section-head p{color:var(--muted);font-size:15px;margin:10px 0 0;max-width:620px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--accent);
  text-transform:uppercase;font-family:var(--mono);margin-bottom:12px;
}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .24s cubic-bezier(.2,.7,.2,1),box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D8D3C8}
.card-media{overflow:hidden;aspect-ratio:16/10;background:#EDEAE2}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--muted);margin:0;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;padding:0 22px 20px;font-size:13px;color:var(--muted)}
.arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:13px;transition:transform .24s ease}
.card:hover .arrow{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;padding:22px 8px;text-align:left;
  font-family:var(--serif);font-size:18px;color:var(--ink);font-weight:700;
}
.faq-q .num{font-family:var(--mono);font-size:13px;color:var(--muted);flex:none;width:28px}
.faq-q .sign{
  margin-left:auto;flex:none;width:22px;height:22px;position:relative;transition:transform .25s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-q .sign::before{left:50%;top:2px;bottom:2px;width:2px;transform:translateX(-50%)}
.faq-q .sign::after{top:50%;left:2px;right:2px;height:2px;transform:translateY(-50%)}
.faq-item[open] .faq-q .sign{transform:rotate(45deg)}
.faq-a{padding:0 8px 24px 46px;color:var(--muted);font-size:16px;animation:fadeUp .35s ease both}
.faq-a p{margin:0}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- cta ---------- */
.cta-band{
  background:var(--ink);color:var(--cream);border-radius:24px;
  padding:56px;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,32px)}
.cta-band p{color:rgba(246,244,239,.78);margin:14px 0 0;font-size:15.5px}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;min-width:0;height:48px;border-radius:var(--radius-btn);
  border:1px solid rgba(246,244,239,.28);background:rgba(255,255,255,.06);
  padding:0 16px;color:#fff;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:rgba(246,244,239,.55)}
.subscribe-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.18)}
.form-note{font-size:12.5px;color:rgba(246,244,239,.55);margin:12px 0 0}

.back-links{display:flex;flex-wrap:wrap;gap:26px;justify-content:center;margin-top:44px}
.text-link{
  font-size:14.5px;color:var(--ink);border-bottom:1px solid var(--line);
  padding-bottom:2px;transition:border-color .2s ease,color .2s ease;
}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.78);margin-top:0;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer .logo{color:#fff;font-size:18px}
.site-footer .logo-mark{border-color:rgba(246,244,239,.7)}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 0;max-width:330px}
.footer-col h4{
  font-family:var(--sans);font-size:13px;letter-spacing:.16em;color:#fff;
  text-transform:uppercase;margin:0 0 18px;font-weight:600;
}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(246,244,239,.78);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-sub p{font-size:14px;margin:0 0 14px}
.site-footer .subscribe-form input{border-color:rgba(246,244,239,.24);background:rgba(255,255,255,.05)}
.site-footer .footer-bottom{
  border-top:1px solid rgba(246,244,239,.16);margin-top:52px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(246,244,239,.6);
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

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

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--pad-section:80px}
}
@media (max-width:1023px){
  :root{--pad-section:64px}
  .header-main{grid-template-columns:auto 1fr auto;gap:14px}
  .nav-search{order:3;grid-column:1 / -1}
  .nav-toggle{display:inline-flex;justify-self:end}
  .nav-links{
    position:absolute;left:24px;right:24px;top:100%;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-2);padding:14px;flex-direction:column;align-items:stretch;gap:4px;
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 14px}
  .nav-link.active::after{display:none}
  .nav-cta{justify-content:center;margin-top:6px}
  .card-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  :root{--pad-section:48px}
  body{font-size:16px}
  .container{padding:0 18px}
  .article-wrap{padding:0 18px}
  .page-head{padding:38px 0 44px}
  .page-head h1{font-size:clamp(24px,6.4vw,32px)}
  .prose{font-size:16px;line-height:1.8}
  .prose h2{font-size:22px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{align-items:flex-start;text-align:left}
  .faq-q{font-size:16.5px;padding:18px 4px;gap:12px}
  .faq-a{padding:0 4px 20px 40px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 24px}
}
@media (max-width:479px){
  .btn{width:100%}
  .subscribe-form{flex-direction:column}
  .header-main{padding:12px 0}
  .kbd{display:none}
  .cta-band{padding:28px 22px;border-radius:18px}
  .page-head h1{font-size:23px}
}

/* roulang page: category1 */
:root{
  --ink:#0F2B26;
  --ink-2:#17453B;
  --accent:#FF5A1F;
  --accent-d:#E14A12;
  --cyan:#2FD3B0;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E0D8;
  --line-strong:#CDC7BB;
  --text:#2A2F2D;
  --muted:#6B7370;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,43,38,.06);
  --shadow-2:0 12px 32px rgba(15,43,38,.10);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"Inter",ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol,dl{margin:0;padding:0}
li{list-style:none}
p{margin:0}

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.15;
  color:var(--ink);
  margin:0;
}
h1{font-size:clamp(28px,4.4vw,56px);font-weight:900}
h2{font-size:clamp(22px,2.7vw,32px)}
h3{font-size:clamp(17px,1.6vw,20px);line-height:1.35}
h4{font-size:16px}

a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.22em;
  color:var(--accent);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:2px}
.section-sub{color:var(--muted);font-size:15px;max-width:640px;margin-top:12px}
.muted{color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(255,90,31,.25)}
.btn-primary:hover{background:var(--accent-d);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,90,31,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(255,90,31,.25)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F6F4EF;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:transparent;border-color:rgba(246,244,239,.5);color:#F6F4EF}
.btn-light:hover{background:#F6F4EF;color:var(--ink);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{background:#E4E0D8;color:#9A948A;border-color:#E4E0D8;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.08em;
  padding:4px 10px;border-radius:999px;
  background:rgba(15,43,38,.06);color:var(--ink-2);
  border:1px solid rgba(15,43,38,.08);
}
.badge-accent{background:rgba(255,90,31,.10);color:var(--accent-d);border-color:rgba(255,90,31,.22)}
.badge-cyan{background:rgba(47,211,176,.14);color:#17745F;border-color:rgba(47,211,176,.3)}
.badge-dark{background:rgba(246,244,239,.12);color:#EDEAE3;border-color:rgba(246,244,239,.2)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;padding:14px 0}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:900;font-size:18px;
  color:var(--ink);letter-spacing:-.01em;white-space:nowrap;
}
.logo-mark{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--ink)}
.logo-mark::after{content:"";position:absolute;inset:6px;border:1.5px solid var(--accent);border-radius:2px}

.search-bar{
  flex:1 1 auto;max-width:520px;
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 16px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.search-bar:hover{border-color:var(--line-strong)}
.search-bar:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.14);transform:translateY(-1px)}
.search-icon{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round}
.search-bar input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px}
.search-bar input::placeholder{color:#9A948A}
.search-kbd{
  flex:0 0 auto;font-family:var(--mono);font-size:12px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:3px 7px;line-height:1;
}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 12px;border-radius:999px;
  font-size:15px;color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(15,43,38,.05)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-cta{margin-left:8px}

.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;padding:0 10px;
  background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.menu-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.menu-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-active span:nth-child(2){opacity:0}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.category-strip{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-bottom:12px;
}
.strip-label{font-size:12px;letter-spacing:.2em;color:var(--muted);margin-right:4px}
.pill{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.pill:hover{border-color:var(--ink);color:var(--ink)}
.pill.is-active{background:var(--ink);border-color:var(--ink);color:#F6F4EF}

.progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--accent);transition:width .12s linear}

/* ---------- 页头 ---------- */
.page-hero{padding:72px 0 56px;position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(15,43,38,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(15,43,38,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.page-hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy h1{margin:0 0 20px}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-note{margin-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}

.hero-figure{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/11;background:#E9E5DC;box-shadow:var(--shadow-2);
  border:1px solid var(--line);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,43,38,.18),rgba(15,43,38,.66));
}
.hero-figure .fig-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  color:#F1EEE7;font-size:13px;letter-spacing:.06em;
}
.hero-figure .fig-tag{
  position:absolute;top:16px;left:16px;z-index:2;
  font-family:var(--mono);font-size:12px;color:#F1EEE7;
  border:1px solid rgba(241,238,231,.5);border-radius:999px;padding:4px 10px;
}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:60px;
}
.stat{padding:24px 22px;border-right:1px dashed var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--mono);font-size:clamp(24px,3vw,36px);color:var(--ink);line-height:1.1;letter-spacing:-.02em}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted);letter-spacing:.06em}

/* ---------- 板块 ---------- */
.section{padding:96px 0;scroll-margin-top:150px}
.section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{margin:0}

/* ---------- 主内容：左侧目录 + 右侧长列表 ---------- */
.content-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}
.side-nav{position:sticky;top:150px}
.side-title{font-size:12px;letter-spacing:.2em;color:var(--muted);margin-bottom:14px}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;border-radius:0 10px 10px 0;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.side-link:hover{background:rgba(15,43,38,.045);color:var(--ink)}
.side-link.is-active{border-left-color:var(--accent);background:#fff;color:var(--ink);font-weight:700;box-shadow:var(--shadow-1)}
.side-link .count{font-family:var(--mono);font-size:12px;color:var(--muted)}

.log-list{border-top:1px solid var(--line)}
.log-item{
  display:grid;grid-template-columns:126px minmax(0,1fr) 30px;gap:22px;
  padding:24px 18px;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.log-item:hover{background:#fff;box-shadow:var(--shadow-1)}
.log-meta{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.log-date{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.log-body h3{margin:0 0 8px;font-size:19px}
.log-body h3 a{transition:color .2s var(--ease)}
.log-item:hover .log-body h3 a{color:var(--accent-d)}
.log-body p{font-size:14.5px;color:var(--muted);line-height:1.7;max-width:680px}
.log-arrow{
  align-self:center;font-size:20px;color:var(--line-strong);
  transition:transform .25s var(--ease),color .25s var(--ease);
}
.log-item:hover .log-arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- 内容范围（非对称栅格） ---------- */
.split{display:grid;grid-template-columns:.72fr 1.28fr;gap:64px;align-items:start}
.split-aside{position:sticky;top:150px}
.split-aside p{font-size:15px;color:var(--muted);margin-top:16px}
.block-list{border-top:1px solid var(--line)}
.block{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.block-num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.1em;padding-top:6px}
.block h3{margin:0 0 10px}
.block p{font-size:15px;color:var(--muted);max-width:640px}

/* ---------- 发布流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px dashed var(--line-strong)}
.step{padding:28px 22px 0 0;position:relative;border-right:1px dashed var(--line-strong);padding-left:22px}
.step:first-child{padding-left:0}
.step:last-child{border-right:0}
.step b{display:block;font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.12em;margin-bottom:12px}
.step h3{margin:0 0 10px;font-size:18px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:grid;grid-template-columns:56px minmax(0,1fr) 28px;
  align-items:center;gap:16px;
  padding:22px 0;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.08em}
.faq-q{font-family:var(--serif);font-weight:700;font-size:18px;color:var(--ink);line-height:1.4}
.faq-icon{
  position:relative;width:16px;height:16px;justify-self:end;
  transition:transform .28s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--accent)}
.faq-a{padding:0 0 26px 72px;color:var(--muted);font-size:15.5px;max-width:760px;animation:faqIn .3s var(--ease)}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#EDEAE3;padding:72px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,211,176,.20),transparent 68%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-inner h2{color:#F6F4EF;margin-bottom:14px}
.cta-inner p{color:rgba(237,234,227,.72);font-size:15px;max-width:520px}
.privacy{position:relative;margin-top:22px;font-size:13px;color:rgba(237,234,227,.55)}

.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 16px;
  border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe-form input::placeholder{color:#9A948A}
.subscribe-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.16)}
.subscribe-form input.is-error{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.14)}
.form-hint{margin-top:10px;font-size:13px;color:#C0392B;min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#EDEAE3;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#F6F4EF}
.footer-brand .logo-mark{background:#F6F4EF}
.footer-brand .logo-mark::after{border-color:var(--accent)}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(237,234,227,.68);max-width:320px}
.footer-col h4{
  font-family:var(--sans);font-weight:600;font-size:13px;letter-spacing:.18em;
  color:rgba(237,234,227,.55);margin:0 0 18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(237,234,227,.86);transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.footer-sub p{font-size:14px;color:rgba(237,234,227,.68);margin-bottom:14px}
.footer-sub .subscribe-form input{height:42px;border-color:transparent}
.footer-sub .subscribe-form input:focus{border-color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(237,234,227,.15);
  padding:22px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(237,234,227,.6);
}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 20px}
  .header-inner{gap:14px}
  .search-bar{max-width:380px}
  .nav-link{padding:8px 10px;font-size:14.5px}
  .hero-grid{gap:40px}
  .content-layout{gap:40px}
  .split{gap:44px}
}

@media (max-width:1023px){
  .header-inner{flex-wrap:wrap;padding-top:12px}
  .search-bar{order:3;flex:1 1 100%;max-width:none}
  .category-strip{padding-bottom:10px}
  .section{padding:64px 0}
  .page-hero{padding:52px 0 40px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{aspect-ratio:16/9;order:-1}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px dashed var(--line)}
  .content-layout{grid-template-columns:1fr;gap:26px}
  .side-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .side-title{display:none}
  .side-link{border-left:0;border:1px solid var(--line);border-radius:999px;background:#fff;white-space:nowrap;padding:8px 15px;font-size:13.5px}
  .side-link.is-active{border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}
  .side-link .count{display:none}
  .split{grid-template-columns:1fr;gap:24px}
  .split-aside{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step{border-right:0;border-bottom:1px dashed var(--line-strong);padding:24px 18px 24px 0}
  .step:nth-child(2n){padding-left:20px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .faq-a{padding-left:0}
}

@media (max-width:767px){
  body{font-size:16px}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:88px 20px 24px;
    background:var(--ink);color:#F6F4EF;
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    box-shadow:-16px 0 40px rgba(15,43,38,.24);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:none}
  .nav-link{color:rgba(246,244,239,.82);padding:13px 14px;border-radius:10px;font-size:16px}
  .nav-link:hover{color:#fff;background:rgba(246,244,239,.08)}
  .nav-link.active{color:#fff;font-weight:700}
  .nav-link.active::after{left:14px;right:auto;width:22px;bottom:6px}
  .nav-cta{margin:14px 0 0;width:100%}
  .nav-links .btn-light{width:100%}
  .menu-toggle{display:flex;margin-left:auto}
  .logo{font-size:16px}
  .logo-mark{width:20px;height:20px}
  .logo-mark::after{inset:5px}
  .log-item{grid-template-columns:1fr;gap:12px;padding:20px 4px}
  .log-meta{flex-direction:row;align-items:center;gap:12px}
  .log-arrow{display:none}
  .hero-figure{aspect-ratio:4/3}
  .section{padding:48px 0}
  .page-hero{padding:38px 0 32px}
  .page-hero::before{background-size:48px 48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand,.footer-sub{grid-column:1/-1}
  .hero-actions .btn{width:100%}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .faq-item summary{grid-template-columns:40px minmax(0,1fr) 24px;gap:12px;padding:18px 0}
  .faq-q{font-size:16.5px}
}

@media (max-width:479px){
  h1{font-size:26px}
  .container{padding:0 16px}
  .stat{padding:18px 14px}
  .stat b{font-size:24px}
  .section{padding:40px 0}
  .footer-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding-left:0 !important;padding-right:0}
  .badge{font-size:11px}
  .footer-bottom{flex-direction:column;gap:6px}
}

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

/* roulang page: category2 */
:root{
  --ink:#0F2B26;
  --ink-2:#17453B;
  --orange:#FF5A1F;
  --orange-dark:#E44A12;
  --cyan:#2FD3B0;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E4E0D8;
  --line-strong:#CFC9BC;
  --text:#2A2F2D;
  --muted:#6B7370;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,43,38,.06);
  --sh-2:0 12px 32px rgba(15,43,38,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);letter-spacing:-.02em;line-height:1.16;font-weight:800}
p{margin:0}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:13px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--orange)}
h1{font-size:clamp(28px,4.4vw,52px);font-weight:900}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(18px,1.6vw,20px)}
.lead{font-size:17px;color:var(--muted);margin-top:16px;max-width:660px}
.small{font-size:14px;color:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:var(--bg);color:var(--ink)}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:0 12px 32px rgba(0,0,0,.22)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{background:#D9D5CC;color:#8A8E8B;cursor:not-allowed;box-shadow:none;transform:none;border-color:transparent}

/* ---------- 头部 / 搜索主导导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.scroll-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--orange);transition:width .12s linear}
.header-top{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:28px;align-items:center;padding:16px 0 12px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:800;font-size:18px;
  color:var(--ink);letter-spacing:-.01em;white-space:nowrap;
}
.logo-mark{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  border:2px solid var(--ink);border-radius:5px;
}
.logo-mark::after{content:"";position:absolute;inset:3px;background:var(--orange);border-radius:2px}

.search-box{
  position:relative;display:flex;align-items:center;gap:10px;
  height:46px;padding:0 14px 0 16px;
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-pill);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
  min-width:0;
}
.search-box:hover{border-color:#B8B2A4}
.search-box:focus-within{
  border-color:var(--orange);transform:translateY(-1px);
  box-shadow:0 0 0 3px rgba(255,90,31,.14),var(--sh-1);
}
.search-box svg{flex:0 0 auto;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:1.7}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px;
}
.search-box input::placeholder{color:#9A9E9A}
.kbd{
  flex:0 0 auto;font-family:var(--mono);font-size:12px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 7px;background:#FAF8F3;
}

.nav-links{display:flex;align-items:center;gap:22px}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  transition:color .22s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:auto;bottom:0;height:2px;width:0;
  background:var(--orange);transition:width .3s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{width:100%}
.nav-cta{margin-left:4px}

.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-strong);
  border-radius:var(--r-btn);align-items:center;justify-content:center;justify-self:end;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background .2s}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .25s var(--ease)
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.menu-toggle[aria-expanded="true"] span{background:transparent}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.cat-row{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:0 24px 14px;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:#fff;
  font-size:14px;color:var(--muted);
  transition:all .22s var(--ease);
}
.pill:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-1px)}
.pill.active{background:var(--ink);border-color:var(--ink);color:#F6F4EF}
.pill.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange)}

/* ---------- Hero ---------- */
.cat-hero{padding:64px 0 56px;border-bottom:1px solid var(--line)}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.8fr);
  gap:56px;align-items:center;
}
.hero-copy h1{margin-bottom:20px}
.hero-copy .lead{font-size:18px;max-width:620px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.stat b{
  display:block;font-family:var(--serif);font-size:clamp(24px,2.4vw,34px);
  font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px}

.hero-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:4/5;background:#E7E3DA;border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(15,43,38,.18),rgba(15,43,38,.62)),
    repeating-linear-gradient(0deg,rgba(255,255,255,.07) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 1px,transparent 1px 48px);
}
.hero-figure .fig-note{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  color:#F6F4EF;font-size:13px;letter-spacing:.04em;
  display:flex;align-items:center;gap:10px;
}
.hero-figure .fig-note::before{content:"";width:18px;height:1px;background:var(--cyan);flex:0 0 auto}

/* ---------- 全宽图带 ---------- */
.hero-band{position:relative;overflow:hidden;background:var(--ink);color:#F6F4EF;isolation:isolate}
.band-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-band::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(15,43,38,.94) 0%,rgba(15,43,38,.72) 55%,rgba(15,43,38,.5) 100%);
}
.band-inner{position:relative;z-index:2;padding:84px 24px}
.band-title{color:#F6F4EF;font-size:clamp(22px,2.6vw,32px);max-width:720px;margin-bottom:18px}
.band-text{color:rgba(246,244,239,.78);max-width:640px;font-size:16px}
.band-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.band-chips li{
  border:1px solid rgba(246,244,239,.3);border-radius:var(--r-pill);
  padding:7px 15px;font-size:13px;color:rgba(246,244,239,.9);
}
.band-chips li.alt{border-color:rgba(47,211,176,.55);color:var(--cyan)}

/* ---------- 数据卡片（交错双列） ---------- */
.stagger{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.stagger-col{display:flex;flex-direction:column;gap:32px}
.stagger-col-offset{margin-top:68px}
.data-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .3s var(--ease);
}
.data-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:#EDEAE3}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.data-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--ink);background:rgba(47,211,176,.16);
  border:1px solid rgba(47,211,176,.42);
  border-radius:var(--r-pill);padding:4px 11px;
}
.badge.warm{color:#8C2E08;background:rgba(255,90,31,.12);border-color:rgba(255,90,31,.36)}
.card-body h3{margin:16px 0 10px}
.card-body p{color:var(--muted);font-size:15.5px}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.card-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;
  transition:gap .25s var(--ease),color .25s var(--ease);
}
.data-card:hover .card-arrow{gap:12px;color:var(--orange)}

/* ---------- 横向场景分区 ---------- */
.scenes{border-top:1px solid var(--line)}
.scene{
  display:grid;grid-template-columns:96px minmax(0,1fr) minmax(0,.62fr);
  gap:32px;align-items:start;padding:36px 0;
  border-bottom:1px solid var(--line);
}
.scene-idx{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.1em;padding-top:6px}
.scene-body h3{margin-bottom:10px}
.scene-body p{color:var(--muted);font-size:15.5px;max-width:560px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;padding-top:4px}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--ink);background:#fff;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:5px 13px;
  transition:all .22s var(--ease);
}
.tag:hover{border-color:var(--orange);color:var(--orange)}

/* ---------- 查看流程 ---------- */
.process{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.step{padding-left:18px;border-left:2px solid var(--line-strong);transition:border-color .3s var(--ease)}
.step:hover{border-color:var(--orange)}
.step-num{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--orange);margin-bottom:12px}
.step h3{margin-bottom:8px;font-size:18px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;gap:18px;
  padding:24px 0;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q{flex:1;font-family:var(--serif);font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.faq-idx{font-family:var(--mono);font-size:13px;color:var(--muted);flex:0 0 auto}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;line-height:24px;text-align:center;
  border:1px solid var(--line-strong);border-radius:50%;color:var(--ink);font-size:16px;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.faq-item summary:hover::after{border-color:var(--ink)}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--orange);border-color:var(--orange);color:#fff}
.faq-a{padding:0 44px 26px 34px;color:var(--muted);font-size:15.5px;animation:fadeIn .38s var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#F6F4EF}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:48px;align-items:center}
.cta-band h2{color:#F6F4EF}
.cta-band .lead{color:rgba(246,244,239,.76)}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1;min-width:200px;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(246,244,239,.34);background:rgba(246,244,239,.06);color:#F6F4EF;
  outline:none;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.cta-form input::placeholder{color:rgba(246,244,239,.55)}
.cta-form input:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,90,31,.2)}
.cta-note{margin-top:14px;font-size:13px;color:rgba(246,244,239,.58)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.78);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer .logo{color:#F6F4EF;font-size:17px}
.site-footer .logo-mark{border-color:#F6F4EF}
.footer-brand p{margin-top:16px;font-size:14.5px;max-width:340px;line-height:1.8}
.footer-col h4{
  font-family:var(--sans);font-size:13px;letter-spacing:.16em;color:#F6F4EF;
  text-transform:uppercase;margin-bottom:16px;font-weight:600;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14.5px;color:rgba(246,244,239,.72);transition:color .22s var(--ease)}
.footer-col ul li a:hover{color:var(--orange)}
.footer-sub p{font-size:14.5px;margin-bottom:14px}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;min-width:0;height:40px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(246,244,239,.3);background:rgba(246,244,239,.06);color:#F6F4EF;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.subscribe-form input::placeholder{color:rgba(246,244,239,.5)}
.subscribe-form input:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,90,31,.18)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(246,244,239,.16);
  font-size:13px;color:rgba(246,244,239,.55);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px}
  .scene{grid-template-columns:80px minmax(0,1fr) minmax(0,.7fr)}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .header-top{grid-template-columns:auto auto;grid-template-areas:"logo toggle" "search search";gap:14px;padding:14px 0 12px}
  .logo{grid-area:logo}
  .menu-toggle{grid-area:toggle;display:inline-flex}
  .search-box{grid-area:search;height:44px}
  .nav-links{
    display:none;grid-column:1/-1;flex-direction:column;align-items:stretch;gap:4px;
    padding-top:12px;border-top:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .nav-link{padding:10px 0;font-size:16px}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--orange)}
  .nav-cta{margin:8px 0 4px;justify-content:center}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{aspect-ratio:16/10;order:-1}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .scene{grid-template-columns:1fr;gap:14px}
  .scene-tags{justify-content:flex-start}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:48px 0}
  .container{padding:0 18px}
  .cat-row{padding:0 18px 12px}
  .cat-hero{padding:44px 0 40px}
  .band-inner{padding:56px 18px}
  .stagger{grid-template-columns:1fr;gap:24px}
  .stagger-col{gap:24px}
  .stagger-col-offset{margin-top:0}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .faq-a{padding:0 0 22px 34px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  h1{font-size:clamp(26px,7vw,32px)}
  h2{font-size:22px}
  .hero-actions .btn{width:100%}
  .cta-form input,.cta-form .btn{width:100%}
  .subscribe-form{flex-direction:column}
  .search-box .kbd{display:none}
}