/* roulang page: index */
:root{
  --moss-700:#12604A;--moss-600:#1E8A66;--moss-100:#E3F0E9;
  --lime-500:#C8F32B;--lime-100:#F2F9D6;
  --clay-600:#FF5C2B;--clay-100:#FFE7DC;
  --ink-900:#0A1A16;--ink-700:#23342F;--ink-500:#4E5C57;--ink-300:#8A9691;
  --sand-50:#F6F4EE;--sand-100:#EFEBE1;--sand-200:#E2DCD0;--line:#E6E1D4;
  --r-card:18px;--r-row:14px;--r-img:14px;--r-btn:10px;--r-pill:999px;
  --sh-soft:0 1px 2px rgba(10,26,22,.04),0 12px 28px -18px rgba(10,26,22,.18);
  --sh-lift:0 2px 4px rgba(10,26,22,.06),0 22px 44px -22px rgba(10,26,22,.26);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --content:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0 0 72px;background:var(--sand-50);color:var(--ink-700);
  font-family:var(--font-sans);font-size:17px;line-height:1.9;font-weight:400;
  letter-spacing:.01em;text-align:left;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--moss-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--clay-600)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{color:var(--ink-900);line-height:1.3;font-weight:700;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--content);margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn--primary{background:var(--clay-600);color:var(--ink-900);box-shadow:var(--sh-soft)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-lift);color:var(--ink-900)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-soft)}
.btn--ghost{background:transparent;border-color:rgba(10,26,22,.2);color:var(--ink-900)}
.btn--ghost:hover{background:rgba(10,26,22,.05);color:var(--ink-900)}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn--block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.text-link{color:var(--moss-700);font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.text-link:hover{color:var(--clay-600)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;color:var(--ink-900);
  border:1px solid transparent;transition:background-color .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:rgba(10,26,22,.06);color:var(--moss-700)}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8}

/* ---------- 徽章 / 芯片 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;letter-spacing:.01em;background:var(--moss-100);color:var(--moss-700);
}
.chip--lime{background:var(--lime-100);color:var(--ink-900)}
.chip--clay{background:var(--clay-100);color:var(--clay-600)}
.chip__dot{width:6px;height:6px;border-radius:50%;background:var(--lime-500);display:inline-block}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;line-height:1.6;background:var(--moss-100);color:var(--moss-700);
}
.badge--lime{background:var(--lime-100);color:var(--ink-900)}
.badge--clay{background:var(--clay-100);color:var(--clay-600)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;background:rgba(246,244,238,.94);
  border-bottom:1px solid transparent;
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-soft)}
.brand-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);white-space:nowrap}
.logo:hover{color:var(--ink-900)}
.logo__mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--moss-700);color:var(--lime-500);
  font-family:var(--font-num);font-size:16px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.logo__text{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.brand-bar__actions{display:flex;align-items:center;gap:8px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:10px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);margin:0 auto;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.channel-bar{border-top:1px solid transparent}
.channel-bar__inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 24px 8px;mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 24px),transparent 100%)}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-500);white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--lime-500);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.channel-link:hover{color:var(--moss-700);background:rgba(30,138,102,.06)}
.channel-link.is-active{color:var(--moss-700);font-weight:700}
.channel-link.is-active::after{transform:scaleX(1)}

/* ---------- 搜索浮层 ---------- */
.search-panel{
  position:fixed;top:0;left:0;right:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-lift);padding:18px 0;
}
.search-panel[hidden]{display:none}
.search-form{display:flex;gap:12px;align-items:center}
.search-form input{
  flex:1 1 auto;min-height:46px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--sand-50);color:var(--ink-900);
}
.search-form input::placeholder{color:var(--ink-300)}
.search-form input:focus{border-color:var(--moss-600);box-shadow:0 0 0 3px rgba(30,138,102,.18);outline:none}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:95}
.drawer[hidden]{display:none}
.drawer__backdrop{position:absolute;inset:0;background:rgba(10,26,22,.45)}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;
  padding:16px 20px 96px;overflow-y:auto;box-shadow:var(--sh-lift);
  animation:drawerIn .22s var(--ease);
}
@keyframes drawerIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer__grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0 24px}
.drawer__link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  background:var(--sand-50);color:var(--ink-700);font-size:15px;font-weight:500;
}
.drawer__link:hover{background:var(--moss-100);color:var(--moss-700)}
.drawer__link.is-active{background:var(--lime-100);color:var(--ink-900);font-weight:700}

/* ---------- Hero ---------- */
.hero{padding:56px 0 64px;background:linear-gradient(180deg,var(--sand-100) 0%,var(--sand-50) 100%)}
.hero__grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;min-height:560px}
.hero__copy{grid-column:1 / span 6;display:flex;flex-direction:column;gap:20px}
.hero__title{font-size:44px;line-height:1.25;letter-spacing:.01em}
.hero__sub{font-size:17px;color:var(--ink-500);max-width:34em}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px}
.hero__stats{display:flex;gap:32px;flex-wrap:wrap;padding-top:8px;border-top:1px dashed var(--line);margin-top:4px}
.hero__stats li{display:flex;flex-direction:column;gap:2px}
.stat__num{font-family:var(--font-num);font-size:32px;line-height:1.1;color:var(--moss-700);font-weight:700}
.stat__label{font-size:13px;color:var(--ink-300)}
.hero__media{grid-column:7 / span 6;position:relative}
.hero__media img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-soft)}
.hero__info-card{
  position:absolute;left:24px;bottom:-24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-lift);padding:18px 22px;max-width:300px;
}
.hero__info-card strong{display:block;font-size:15px;color:var(--ink-900);margin-bottom:4px}
.hero__info-card span{font-size:13px;color:var(--ink-500);line-height:1.7}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0}
.section--tint{background:var(--sand-100)}
.section--grid-bg{background-color:var(--sand-50);background-image:linear-gradient(rgba(10,26,22,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(10,26,22,.04) 1px,transparent 1px);background-size:28px 28px}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section__title{font-size:30px;line-height:1.3}
.section__sub{font-size:15px;color:var(--ink-500);margin-top:10px;max-width:44em}

/* ---------- 卖点厚条 ---------- */
.strip-list{display:flex;flex-direction:column;gap:16px}
.strip{
  display:flex;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-soft);padding:26px 28px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.strip:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:rgba(30,138,102,.35)}
.strip__num{font-family:var(--font-num);font-size:44px;line-height:1;color:var(--moss-100);font-weight:700;flex:0 0 auto;min-width:64px}
.strip__body{flex:1 1 auto}
.strip__body h3{font-size:20px;margin-bottom:6px}
.strip__body p{font-size:15px;color:var(--ink-500);line-height:1.8}
.strip__arrow{flex:0 0 auto;color:var(--moss-700);font-size:20px;transition:transform .2s var(--ease)}
.strip:hover .strip__arrow{transform:translateX(4px)}

/* ---------- 场景演示 ---------- */
.demo{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.demo__steps{grid-column:1 / span 5}
.demo__media{grid-column:6 / span 7;position:relative}
.demo__media img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-soft)}
.steps{display:flex;flex-direction:column;gap:0}
.step{position:relative;display:flex;gap:16px;padding-bottom:26px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:13px;top:30px;bottom:0;width:1px;border-left:1px dashed var(--line)}
.step:last-child::before{display:none}
.step__node{
  flex:0 0 auto;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--moss-600);background:#fff;color:var(--moss-700);
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.step.is-current .step__node{background:var(--moss-600);border-color:var(--moss-600);color:#fff}
.step__body h3{font-size:18px;margin-bottom:4px}
.step__body p{font-size:15px;color:var(--ink-500);line-height:1.8}
.float-chip{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;color:var(--ink-700);box-shadow:var(--sh-lift);white-space:nowrap;
}
.float-chip--a{top:22px;left:22px}
.float-chip--b{top:50%;right:-12px;transform:translateY(-50%)}
.float-chip--c{bottom:26px;left:38px}

/* ---------- 最新信息 ---------- */
.news{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.news__feature{grid-column:1 / span 6}
.news__list{grid-column:7 / span 6;display:flex;flex-direction:column;gap:12px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-soft);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:rgba(30,138,102,.35)}
.news-card__media{display:block;overflow:hidden}
.news-card__media img{width:100%;height:260px;object-fit:cover;transition:transform .24s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__body{padding:24px;display:flex;flex-direction:column;gap:12px}
.news-card__title{font-size:22px;line-height:1.45}
.news-card__title a{color:var(--ink-900)}
.news-card__title a:hover{color:var(--moss-700);text-decoration:underline;text-underline-offset:3px}
.news-card__excerpt{font-size:14px;line-height:1.85;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.row-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-row);
  padding:18px 24px;box-shadow:var(--sh-soft);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.row-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:rgba(30,138,102,.35)}
.row-card__title{font-size:17px;font-weight:500;color:var(--ink-900);line-height:1.6;transition:color .2s var(--ease)}
.row-card:hover .row-card__title{color:var(--moss-700);text-decoration:underline;text-underline-offset:3px}
.row-card__excerpt{font-size:14px;line-height:1.7;color:var(--ink-500);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--ink-300);margin-top:10px}
.meta .num{font-size:13px}
.meta__sep{color:var(--line)}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--sand-100);border:1px dashed var(--line);border-radius:var(--r-card);padding:32px;text-align:center;
}
.empty-state__mark{width:56px;height:56px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--moss-600);font-family:var(--font-num);font-size:18px}
.empty-state p{font-size:15px;color:var(--ink-500)}

/* ---------- 社会认同 ---------- */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px}
.proof-stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-soft)}
.proof-stat__num{font-family:var(--font-num);font-size:36px;line-height:1.1;color:var(--moss-700);font-weight:700}
.proof-stat__label{font-size:13px;color:var(--ink-300);margin-top:6px;display:block}
.proof-stat__desc{font-size:14px;color:var(--ink-500);margin-top:10px;line-height:1.7}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.quote-card{background:#fff;border:1px solid var(--line);border-left:3px solid var(--moss-600);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--sh-soft)}
.quote-card--offset{margin-top:24px}
.quote-card p{font-size:16px;line-height:1.85;color:var(--ink-700)}
.quote-card footer{margin-top:14px;font-size:13px;color:var(--ink-300)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-row);box-shadow:var(--sh-soft);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item[open]{border-left:3px solid var(--lime-500)}
.faq-item__q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;font-size:17px;font-weight:500;color:var(--ink-900);cursor:pointer;list-style:none;
}
.faq-item__q::-webkit-details-marker{display:none}
.faq-item__q::after{
  content:"+";flex:0 0 auto;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:var(--lime-500);color:var(--ink-900);font-size:18px;line-height:1;font-weight:700;
  transition:transform .2s var(--ease);
}
.faq-item[open] .faq-item__q::after{content:"–"}
.faq-item__a{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-500)}
.faq-item__a p{margin:0}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);
  padding:48px 40px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-card h2{font-size:30px;margin-bottom:12px}
.cta-card p{font-size:16px;color:var(--ink-500);line-height:1.85}
.cta-card__actions{display:flex;flex-direction:column;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--sand-50);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:32px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-logo .logo__mark{background:var(--lime-500);color:var(--ink-900)}
.footer-logo .logo__text{color:#fff}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(246,244,238,.72)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{display:inline-flex;align-items:center;min-height:32px;font-size:14px;color:rgba(246,244,238,.72)}
.footer-links a:hover{color:var(--lime-500)}
.footer-form label{display:block;font-size:13px;font-weight:500;color:rgba(246,244,238,.72);margin-bottom:8px}
.footer-form__row{display:flex;gap:8px;margin-bottom:10px}
.footer-form input{
  flex:1 1 auto;min-height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(246,244,238,.18);background:var(--ink-700);color:var(--sand-50);
}
.footer-form input::placeholder{color:var(--ink-300)}
.footer-form input:focus{outline:none;border-color:var(--lime-500);box-shadow:0 0 0 3px rgba(200,243,43,.18)}
.footer-form__hint{font-size:12px;color:rgba(246,244,238,.55);line-height:1.7}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(246,244,238,.14);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(246,244,238,.6)}
.footer-bottom a{font-size:13px;color:rgba(246,244,238,.72)}
.footer-bottom a:hover{color:var(--lime-500)}

/* ---------- 底部固定转化条 ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(10,26,22,.3);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 24px;min-height:64px;
  transform:translateY(110%);transition:transform .22s var(--ease);
}
.bottom-bar.is-visible{transform:translateY(0)}
.bottom-bar__text{font-size:14px;color:var(--ink-500)}
.bottom-bar__actions{display:flex;align-items:center;gap:10px}
.bottom-bar__close{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;color:var(--ink-300);font-size:20px;line-height:1}
.bottom-bar__close:hover{background:var(--sand-100);color:var(--ink-900)}

/* ---------- 响应式 ---------- */
@media (min-width:1025px){
  .bottom-bar{min-height:72px}
}
@media (max-width:1024px){
  .hero__grid{min-height:0}
  .hero__copy{grid-column:1 / span 12}
  .hero__media{grid-column:1 / span 12;margin-top:32px}
  .hero__media img{height:360px}
  .demo__steps{grid-column:1 / span 12}
  .demo__media{grid-column:1 / span 12;margin-top:28px}
  .news__feature{grid-column:1 / span 12}
  .news__list{grid-column:1 / span 12}
  .proof-stats{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .hero{padding:36px 0 48px}
  .hero__title{font-size:32px}
  .section{padding:56px 0}
  .section__title{font-size:24px}
  .channel-bar__inner{padding:4px 18px 8px}
  .hero__media img{height:260px}
  .hero__info-card{position:static;margin-top:16px;max-width:none}
  .demo__media img{height:260px}
  .news-card__media img{height:200px}
  .quotes{grid-template-columns:1fr}
  .quote-card--offset{margin-top:0}
  .float-chip--b{right:12px}
  .strip{padding:20px;gap:16px}
  .strip__num{font-size:34px;min-width:48px}
  .bottom-bar{padding:0 16px;min-height:64px}
  .bottom-bar__text{display:none}
}
@media (max-width:520px){
  .brand-bar__inner{min-height:56px}
  .logo__text{font-size:15px}
  .brand-bar__actions .btn--primary{display:none}
  .nav-toggle{display:flex}
  .channel-bar{display:none}
  .hero__stats{gap:20px}
  .stat__num{font-size:26px}
  .proof-stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero__actions .btn{width:100%}
  .search-form{flex-direction:column;align-items:stretch}
}
@media (max-width:1024px){
  .nav-toggle{display:flex}
}
@media (min-width:1025px){
  .nav-toggle{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --moss-700:#12604A;--moss-600:#1E8A66;--moss-100:#E3F0E9;
  --lime-500:#C8F32B;--lime-100:#F2F9D6;
  --clay-600:#FF5C2B;--clay-100:#FFE7DC;
  --ink-900:#0A1A16;--ink-700:#23342F;--ink-500:#4E5C57;--ink-300:#8A9691;
  --sand-50:#F6F4EE;--sand-100:#EFEBE1;--sand-200:#E2DCD0;
  --line:#E6E1D4;
  --r-card:18px;--r-row:14px;--r-img:14px;--r-btn:10px;--r-pill:999px;
  --sh-soft:0 1px 2px rgba(10,26,22,.04),0 12px 28px -18px rgba(10,26,22,.18);
  --sh-lift:0 2px 4px rgba(10,26,22,.06),0 22px 44px -22px rgba(10,26,22,.26);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  --num:"Barlow Condensed","DIN Alternate",ui-monospace,monospace;
  --content:1200px;--prose:760px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--sand-50);color:var(--ink-900);
  font-family:var(--sans);font-size:17px;line-height:1.9;letter-spacing:.01em;
  padding-bottom:128px;overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{line-height:1.3;font-weight:700;}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--content);margin:0 auto;padding:0 24px;}
.grid-texture{
  background-image:
    linear-gradient(to right,rgba(18,96,74,.04) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(18,96,74,.04) 1px,transparent 1px);
  background-size:32px 32px;
}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.brand-bar{min-height:64px;display:flex;align-items:center;}
.brand-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;}
.brand__mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;background:var(--moss-700);display:flex;align-items:center;justify-content:center;}
.brand__mark svg{width:20px;height:20px;display:block;}
.brand__text{font-size:18px;font-weight:700;color:var(--ink-900);white-space:nowrap;}
.brand__text em{font-style:normal;color:var(--moss-700);}
.brand-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;
  transition:background .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1);
}
.icon-btn:hover{background:var(--sand-100);border-color:var(--sand-200);}
.icon-btn svg{width:19px;height:19px;}
.burger{display:none;}
.channel-bar{background:#fff;border-top:1px solid var(--line);}
.channel-bar__inner{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;padding:6px 24px;}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;position:relative;padding:8px 14px;font-size:15px;font-weight:500;
  color:var(--ink-500);border-radius:8px;min-height:44px;display:inline-flex;align-items:center;
  transition:color .2s cubic-bezier(.2,.7,.3,1),background .2s cubic-bezier(.2,.7,.3,1);
}
.channel-link:hover{color:var(--moss-700);background:var(--sand-50);}
.channel-link.is-active{color:var(--moss-700);font-weight:700;}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--lime-500);border-radius:2px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-weight:700;font-size:16px;cursor:pointer;text-align:center;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1),
             background .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1),filter .2s;
}
.btn-primary{background:var(--clay-600);color:var(--ink-900);box-shadow:var(--sh-soft);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-lift);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{background:transparent;border-color:rgba(10,26,22,.2);color:var(--ink-900);}
.btn-ghost:hover{background:rgba(10,26,22,.05);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 18px;font-size:15px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.text-link{
  color:var(--moss-700);font-weight:500;text-decoration:underline;
  text-underline-offset:3px;text-decoration-thickness:1px;
  transition:color .2s cubic-bezier(.2,.7,.3,1);
}
.text-link:hover{color:var(--clay-600);}

/* ---------- 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;letter-spacing:.02em;
}
.pill--moss{background:var(--moss-100);color:var(--moss-700);}
.pill--lime{background:var(--lime-100);color:#243007;}
.pill--clay{background:var(--clay-100);color:var(--clay-600);}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--ink-300);}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:var(--ink-300);}
.breadcrumb a{color:var(--ink-500);transition:color .2s;}
.breadcrumb a:hover{color:var(--moss-700);}
.breadcrumb .current{color:var(--ink-900);font-weight:500;}

/* ---------- Hero ---------- */
.cat-hero{position:relative;padding:40px 0 88px;}
.cat-hero__grid{display:grid;grid-template-columns:6fr 6fr;gap:24px;align-items:center;}
.cat-hero__title{font-size:44px;margin:18px 0 16px;letter-spacing:.01em;}
.cat-hero__lead{font-size:17px;color:var(--ink-500);max-width:34em;}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.cat-hero__media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-soft);}
.cat-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.cat-hero__float{
  position:absolute;left:16px;bottom:16px;background:#fff;border-radius:var(--r-row);
  padding:14px 18px;box-shadow:var(--sh-lift);display:flex;align-items:center;gap:14px;
}
.cat-hero__float .num{font-family:var(--num);font-size:30px;line-height:1;color:var(--moss-700);}
.cat-hero__float span{font-size:13px;color:var(--ink-500);}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0;}
.section--tight{padding-top:0;}
.section-head{margin-bottom:32px;max-width:var(--prose);}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--ink-500);font-size:16px;}
.eyebrow{
  font-family:var(--num);font-size:13px;letter-spacing:.14em;color:var(--moss-600);
  text-transform:uppercase;display:block;margin-bottom:10px;
}

/* ---------- 图文交替 ---------- */
.feature-row{display:grid;grid-template-columns:6fr 6fr;gap:40px;align-items:center;}
.feature-row+.feature-row{margin-top:72px;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-soft);}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-body h3{font-size:20px;margin:14px 0 12px;}
.feature-body p{color:var(--ink-500);font-size:16px;}
.feature-points{margin-top:18px;display:grid;gap:10px;}
.feature-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-700);}
.feature-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--moss-600);
}

/* ---------- 勾选清单 ---------- */
.check-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-soft);
}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 32px;}
.check-item{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-700);}
.check-item .dot{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--moss-100);
  display:flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-item .dot svg{width:12px;height:12px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-row);
  box-shadow:var(--sh-soft);transition:border-color .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open]{border-left:3px solid var(--lime-500);}
.faq-item:hover{border-color:rgba(30,138,102,.35);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 24px;font-size:17px;font-weight:500;
  display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--lime-500);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  color:var(--ink-900);line-height:1;
}
.faq-answer{padding:0 24px 16px;font-size:15px;line-height:1.85;color:var(--ink-500);}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-card h2{font-size:26px;margin-bottom:10px;}
.cta-card p{color:var(--ink-500);font-size:16px;max-width:34em;}
.cta-card__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--sand-50);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:var(--moss-600);}
.footer-brand span{font-size:17px;font-weight:700;color:var(--sand-50);white-space:nowrap;}
.footer-col p{color:var(--ink-300);font-size:14px;line-height:1.85;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--sand-50);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--ink-300);min-height:32px;display:inline-flex;align-items:center;transition:color .2s;}
.footer-links a:hover{color:var(--lime-500);}
.footer-form label{display:block;font-size:13px;font-weight:500;margin-bottom:8px;color:var(--sand-100);}
.footer-form input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--ink-700);border:1px solid rgba(246,244,238,.16);color:var(--sand-50);
  transition:border-color .2s,box-shadow .2s;
}
.footer-form input::placeholder{color:var(--ink-300);}
.footer-form input:focus{outline:none;border-color:var(--moss-600);box-shadow:0 0 0 3px rgba(30,138,102,.18);}
.footer-form .btn{margin-top:12px;width:100%;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(246,244,238,.14);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-300);
}
.footer-bottom .to-top{color:var(--sand-100);transition:color .2s;}
.footer-bottom .to-top:hover{color:var(--lime-500);}

/* ---------- 底部转化条 ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -12px 28px -18px rgba(10,26,22,.24);
  transform:translateY(110%);transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.bottom-bar.is-visible{transform:translateY(0);}
.bottom-bar__inner{min-height:72px;display:flex;align-items:center;gap:16px;justify-content:space-between;padding-top:10px;padding-bottom:10px;}
.bottom-bar__text{font-size:15px;color:var(--ink-700);}
.bottom-bar__actions{display:flex;align-items:center;gap:12px;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .24s cubic-bezier(.2,.7,.3,1);
  box-shadow:var(--sh-lift);padding:20px;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer__grid a{
  min-height:44px;display:flex;align-items:center;padding:0 14px;border-radius:var(--r-btn);
  background:var(--sand-50);font-size:15px;font-weight:500;color:var(--ink-700);
}
.drawer__grid a.is-active{background:var(--moss-100);color:var(--moss-700);}
.drawer-mask{position:fixed;inset:0;background:rgba(10,26,22,.4);z-index:85;opacity:0;visibility:hidden;transition:opacity .24s;}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cat-hero__title{font-size:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:112px;}
  .container{padding:0 18px;}
  .burger{display:inline-flex;}
  .brand-actions .btn{display:none;}
  .cat-hero{padding:24px 0 56px;}
  .cat-hero__grid{grid-template-columns:1fr;gap:28px;}
  .cat-hero__title{font-size:32px;}
  .cat-hero__media{order:2;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .feature-row{grid-template-columns:1fr;gap:20px;}
  .feature-row.is-reverse .feature-media{order:0;}
  .feature-row+.feature-row{margin-top:48px;}
  .check-grid{grid-template-columns:1fr;}
  .check-panel{padding:24px;}
  .cta-card{padding:28px;}
  .cta-card h2{font-size:22px;}
  .cta-card__actions{width:100%;}
  .cta-card__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .bottom-bar__inner{min-height:64px;flex-wrap:nowrap;}
  .bottom-bar__text{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .bottom-bar__btn{padding:0 16px;font-size:15px;}
}
@media (max-width:520px){
  .brand__text{font-size:16px;}
  .cat-hero__title{font-size:29px;}
  .cat-hero__actions .btn{width:100%;}
  .bottom-bar__text{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --moss-700:#12604A;--moss-600:#1E8A66;--moss-100:#E3F0E9;
  --lime-500:#C8F32B;--lime-100:#F2F9D6;
  --clay-600:#FF5C2B;--clay-100:#FFE7DC;
  --ink-900:#0A1A16;--ink-700:#23342F;--ink-500:#4E5C57;--ink-300:#8A9691;
  --sand-50:#F6F4EE;--sand-100:#EFEBE1;--sand-200:#E2DCD0;
  --line:#E6E1D4;
  --r-card:18px;--r-row:14px;--r-btn:10px;--r-img:14px;--r-pill:999px;
  --sh-soft:0 1px 2px rgba(10,26,22,.04),0 12px 28px -18px rgba(10,26,22,.18);
  --sh-lift:0 2px 4px rgba(10,26,22,.06),0 22px 44px -22px rgba(10,26,22,.26);
  --content:1200px;--prose:760px;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  --num:"Barlow Condensed","DIN Alternate",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-700);
  background:var(--sand-50);
  padding-bottom:96px;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--moss-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--clay-600)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--content);margin:0 auto;padding:0 24px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-soft)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand__mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--moss-700);position:relative;overflow:hidden}
.brand__mark::before{content:"";position:absolute;left:7px;top:9px;width:20px;height:20px;border:2px solid var(--lime-500);border-radius:50%}
.brand__mark::after{content:"";position:absolute;left:7px;top:18px;width:20px;height:2px;background:var(--lime-500);transform:rotate(-38deg)}
.brand__text{font-size:18px;font-weight:700;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand__text em{font-style:normal;color:var(--moss-700)}
.brand-row__actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--ink-700);transition:background .2s var(--ease),color .2s var(--ease)}
.icon-btn:hover{background:var(--sand-100);color:var(--moss-700)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-weight:700;font-size:15px;letter-spacing:.01em;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);white-space:nowrap}
.btn--primary{background:var(--clay-600);color:var(--ink-900);box-shadow:var(--sh-soft)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-lift);color:var(--ink-900)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink-900);border:1px solid rgba(10,26,22,.2)}
.btn--ghost:hover{background:rgba(10,26,22,.05);color:var(--ink-900)}
.btn--sm{height:42px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{color:var(--moss-700);font-weight:500;font-size:15px;text-decoration:underline;text-underline-offset:3px}
.link-more:hover{color:var(--clay-600)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle:hover{background:var(--sand-100)}

/* ---------- channel bar ---------- */
.channel-bar{background:#fff;border-top:1px solid var(--line)}
.channel-bar__inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;font-size:15px;color:var(--ink-700);white-space:nowrap;border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.channel-link:hover{color:var(--moss-700)}
.channel-link.is-active{color:var(--moss-700);font-weight:500;border-bottom-color:var(--lime-500)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(10,26,22,.45);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:340px;background:#fff;z-index:95;transform:translateX(100%);visibility:hidden;transition:transform .24s var(--ease),visibility .24s var(--ease);padding:20px;overflow-y:auto;box-shadow:var(--sh-lift)}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__title{font-size:15px;font-weight:700;color:var(--ink-900)}
.drawer__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer__link{display:flex;align-items:center;min-height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-row);font-size:15px;color:var(--ink-900);background:var(--sand-50)}
.drawer__link.is-active{background:var(--moss-100);border-color:var(--moss-600);color:var(--moss-700);font-weight:500}
.drawer__cta{margin-top:18px}

/* ---------- crumbs ---------- */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--ink-300);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--moss-700)}
.crumbs .sep{color:var(--ink-300)}
.crumbs .current{color:var(--ink-900);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:24px 0 28px;border-bottom:1px solid var(--line)}
.article-head__badge{margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:500;letter-spacing:.02em}
.badge--moss{background:var(--moss-100);color:var(--moss-700)}
.badge--lime{background:var(--lime-100);color:var(--ink-900)}
.badge--clay{background:var(--clay-100);color:var(--clay-600)}
.article-head h1{font-size:34px;line-height:1.35;max-width:22em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--ink-300)}
.article-meta .dot{color:var(--sand-200)}
.article-meta .num{font-size:13px}

/* ---------- layout ---------- */
.article-section{padding:36px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-main{min-width:0}

/* ---------- prose ---------- */
.article-body{max-width:var(--prose);font-size:17px;line-height:1.9;color:var(--ink-700);overflow-wrap:break-word}
.article-body>*+*{margin-top:1.25em}
.article-body p{margin:1.25em 0 0}
.article-body h2{position:relative;padding-left:18px;margin:44px 0 16px;font-size:22px;line-height:1.45;color:var(--ink-900)}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:4px;border-radius:2px;background:var(--moss-600)}
.article-body h3{margin:32px 0 12px;font-size:19px;color:var(--ink-900)}
.article-body h4{margin:24px 0 10px;font-size:17px;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:1.25em 0;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body li::marker{color:var(--moss-600)}
.article-body strong{color:var(--ink-900)}
.article-body a{color:var(--moss-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--clay-600)}
.article-body blockquote{margin:28px 0;padding:20px 24px;background:var(--sand-100);border-left:3px solid var(--moss-600);border-radius:0 12px 12px 0;color:var(--ink-700)}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--r-img);margin:28px 0;box-shadow:var(--sh-soft)}
.article-body figure{margin:28px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-300)}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--sand-100);color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:36px 0}
.article-body code{font-family:var(--num);background:var(--sand-100);padding:2px 6px;border-radius:6px;font-size:15px}

/* ---------- tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);max-width:var(--prose)}
.tag-row__label{font-size:13px;color:var(--ink-300)}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-700);transition:border-color .2s var(--ease),color .2s var(--ease)}
.tag:hover{border-color:rgba(30,138,102,.35);color:var(--moss-700)}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-soft)}
.side-card__title{font-size:15px;font-weight:700;color:var(--ink-900);padding-bottom:12px;border-bottom:1px dashed var(--line)}
.side-links{margin-top:12px;display:flex;flex-direction:column;gap:4px}
.side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;padding:6px 8px;border-radius:12px;font-size:15px;color:var(--ink-700);transition:background .2s var(--ease),color .2s var(--ease)}
.side-link:hover{background:var(--sand-50);color:var(--moss-700)}
.side-link span.arrow{color:var(--moss-600);font-weight:700;transition:transform .2s var(--ease)}
.side-link:hover span.arrow{transform:translateX(4px)}
.side-cta{background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);padding:24px}
.side-cta h3{font-size:17px}
.side-cta p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-500)}
.side-cta .btn{margin-top:16px}

/* ---------- empty ---------- */
.empty-state{min-height:240px;max-width:var(--prose);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:40px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-soft);text-align:center}
.empty-state__icon{width:72px;height:72px;border-radius:50%;background:var(--sand-100);position:relative}
.empty-state__icon::before{content:"";position:absolute;left:20px;top:26px;width:32px;height:20px;border:2px solid var(--moss-600);border-radius:4px}
.empty-state__icon::after{content:"";position:absolute;left:20px;top:36px;width:32px;height:2px;background:var(--moss-600)}
.empty-state__text{font-size:17px;color:var(--ink-500)}

/* ---------- related ---------- */
.section{padding:72px 0}
.section--tight{padding:56px 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:28px}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-500)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-soft);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:rgba(30,138,102,.35)}
.card__cover{aspect-ratio:16/9;background:var(--sand-100);overflow:hidden}
.card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card__cover img{transform:scale(1.04)}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:17px;line-height:1.5;color:var(--ink-900)}
.card__desc{font-size:14px;line-height:1.7;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);margin-top:auto;padding-top:6px}

/* ---------- cta band ---------- */
.cta-band{background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:26px}
.cta-band p{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:56ch}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}
.back-row{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:var(--sand-50);padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand__mark{background:var(--moss-600)}
.footer-brand .brand__text{color:var(--sand-50)}
.footer-brand .brand__text em{color:var(--lime-500)}
.footer-text{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(246,244,238,.72)}
.footer-title{font-size:14px;font-weight:700;color:var(--sand-50);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{display:flex;align-items:center;min-height:40px;font-size:14px;color:rgba(246,244,238,.72)}
.footer-links a:hover{color:var(--lime-500)}
.subscribe-form{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.subscribe-form label{font-size:13px;font-weight:500;color:rgba(246,244,238,.8)}
.subscribe-form input{height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(246,244,238,.18);background:var(--ink-700);color:var(--sand-50);font-size:14px;font-family:var(--sans)}
.subscribe-form input::placeholder{color:var(--ink-300)}
.subscribe-form input:focus{outline:none;border-color:var(--moss-600);box-shadow:0 0 0 3px rgba(30,138,102,.24)}
.subscribe-form .btn{height:44px}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(246,244,238,.14);padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(246,244,238,.6)}
.footer-bottom a{color:rgba(246,244,238,.72)}
.footer-bottom a:hover{color:var(--lime-500)}
.to-top{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;border:1px solid rgba(246,244,238,.2);border-radius:var(--r-btn);color:var(--sand-50);font-size:13px}
.to-top:hover{background:rgba(246,244,238,.08);color:var(--sand-50)}

/* ---------- sticky cta ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid var(--line);box-shadow:0 -12px 28px -22px rgba(10,26,22,.35);transform:translateY(110%);transition:transform .24s var(--ease);visibility:hidden}
.sticky-cta.is-visible{transform:translateY(0);visibility:visible}
.sticky-cta__inner{display:flex;align-items:center;gap:16px;height:72px}
.sticky-cta__text{flex:1;font-size:15px;color:var(--ink-700);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sticky-cta__close{width:44px;height:44px;border-radius:12px;font-size:22px;line-height:1;color:var(--ink-300);display:flex;align-items:center;justify-content:center}
.sticky-cta__close:hover{background:var(--sand-100);color:var(--ink-700)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar>*{flex:1 1 280px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:80px}
  .container{padding:0 18px}
  .brand-row{height:56px}
  .brand__text{font-size:16px}
  .brand-row__actions .btn--primary{display:none}
  .nav-toggle{display:flex}
  .article-head h1{font-size:26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:20px;margin-top:36px}
  .article-body h3{font-size:18px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:28px 22px}
  .sticky-cta__inner{height:64px;gap:10px}
  .sticky-cta__text{font-size:13px}
  .sticky-cta .btn{height:42px;padding:0 16px;font-size:14px}
}
@media (max-width:520px){
  .crumbs .current{max-width:100%;white-space:normal}
  .footer-grid{grid-template-columns:1fr}
  .sidebar{flex-direction:column}
  .sidebar>*{flex:1 1 auto}
  .article-layout{gap:24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --moss-700:#12604A;--moss-600:#1E8A66;--moss-100:#E3F0E9;
  --lime-500:#C8F32B;--lime-100:#F2F9D6;
  --clay-600:#FF5C2B;--clay-100:#FFE7DC;
  --ink-900:#0A1A16;--ink-700:#23342F;--ink-500:#4E5C57;--ink-300:#8A9691;
  --sand-50:#F6F4EE;--sand-100:#EFEBE1;--sand-200:#E2DCD0;
  --line:#E6E1D4;
  --r-card:18px;--r-row:14px;--r-img:14px;--r-btn:10px;--r-pill:999px;
  --shadow-soft:0 1px 2px rgba(10,26,22,.04),0 12px 28px -18px rgba(10,26,22,.18);
  --shadow-lift:0 2px 4px rgba(10,26,22,.06),0 22px 44px -22px rgba(10,26,22,.26);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --content:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--sand-50);color:var(--ink-900);
  font-family:var(--font-sans);font-size:17px;line-height:1.9;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;padding-bottom:72px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
h1{font-size:44px}
h2{font-size:30px}
h3{font-size:20px}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--content);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{max-width:640px}
.section-head p{margin:10px 0 0;color:var(--ink-500);font-size:15px;line-height:1.8;max-width:600px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--moss-700);background:var(--moss-100);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap}
.btn-primary{background:var(--clay-600);color:var(--ink-900);box-shadow:var(--shadow-soft)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-lift)}
.btn-primary:active{transform:translateY(0);filter:brightness(1)}
.btn-ghost{background:transparent;border-color:rgba(10,26,22,.2);color:var(--ink-900);font-weight:500}
.btn-ghost:hover{background:rgba(10,26,22,.05)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;font-weight:500}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--moss-700);font-weight:500;text-decoration:underline;text-underline-offset:3px;transition:color .2s var(--ease)}
.btn-text:hover{color:var(--clay-600)}
.icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:var(--r-btn);background:transparent;cursor:pointer;color:var(--ink-700);transition:all .2s var(--ease)}
.icon-btn:hover{background:rgba(10,26,22,.05);border-color:var(--line)}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft)}
.brand-bar__inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--moss-700);color:var(--lime-500);display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-weight:700;font-size:17px;flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.brand-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none}
.channel-bar{border-top:1px solid var(--line);background:#fff}
.channel-bar__inner{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-link{display:inline-flex;align-items:center;min-height:44px;padding:8px 14px;font-size:15px;color:var(--ink-500);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);white-space:nowrap}
.channel-link:hover{color:var(--moss-700)}
.channel-link.is-active{color:var(--moss-700);border-bottom-color:var(--lime-500);font-weight:500}

/* ===== 抽屉 ===== */
.drawer-mask{position:fixed;inset:0;background:rgba(10,26,22,.42);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:#fff;z-index:90;transform:translateX(100%);transition:transform .24s var(--ease);padding:20px;overflow-y:auto;box-shadow:var(--shadow-lift)}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:16px}
.drawer__grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.drawer__grid a{display:flex;align-items:center;min-height:44px;padding:10px 14px;border-radius:var(--r-btn);font-size:15px;color:var(--ink-700);background:var(--sand-50);border:1px solid var(--line)}
.drawer__grid a.is-active{color:var(--moss-700);border-color:var(--moss-600);background:var(--moss-100)}
.drawer .btn{width:100%;margin-top:20px}

/* ===== 面包屑 ===== */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);flex-wrap:wrap}
.crumb a{color:inherit;transition:color .2s var(--ease)}
.crumb a:hover{color:var(--moss-700);text-decoration:underline;text-underline-offset:3px}
.crumb span[aria-hidden]{color:var(--ink-300)}
.crumb-current{color:var(--ink-900)}

/* ===== 头图 ===== */
.cat-banner{position:relative;display:flex;align-items:center;background:var(--ink-900) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;overflow:hidden}
.cat-banner::before{content:"";position:absolute;inset:0;background:rgba(10,26,22,.55)}
.cat-banner__inner{position:relative;z-index:1;width:100%;padding:56px 0}
.cat-banner .crumb,.cat-banner .crumb a,.cat-banner .crumb span[aria-hidden]{color:rgba(246,244,238,.74)}
.cat-banner .crumb-current{color:#F6F4EE}
.cat-banner h1{color:#fff;font-size:44px;line-height:1.3;margin:16px 0 12px;max-width:900px}
.cat-banner p{color:rgba(246,244,238,.88);font-size:17px;line-height:1.85;max-width:660px;margin:0 0 26px}
.cat-banner .btn-group{display:flex;gap:12px;flex-wrap:wrap}
.cat-banner .btn-ghost{border-color:rgba(246,244,238,.45);color:#F6F4EE}
.cat-banner .btn-ghost:hover{background:rgba(255,255,255,.14)}
.banner-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:28px;padding-top:20px;border-top:1px solid rgba(246,244,238,.18);font-size:13px;color:rgba(246,244,238,.72)}
.banner-meta b{color:#F6F4EE;font-weight:500}

/* ===== 特性 2×2 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-soft);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(30,138,102,.35);box-shadow:var(--shadow-lift)}
.feature-icon{width:40px;height:40px;border-radius:var(--r-pill);background:var(--sand-100);display:flex;align-items:center;justify-content:center;color:var(--moss-700);margin-bottom:16px}
.feature-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.85;color:var(--ink-500);margin:0}
.feature-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.tag{display:inline-flex;align-items:center;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);background:var(--sand-100);color:var(--ink-700)}
.tag--lime{background:var(--lime-100);color:var(--ink-900)}
.tag--moss{background:var(--moss-100);color:var(--moss-700)}

/* ===== 图文块 ===== */
.media-row{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.media-row + .media-row{margin-top:64px}
.media-figure{grid-column:span 6;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--sand-100)}
.media-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media-body{grid-column:span 6}
.media-body h3{margin-bottom:12px;font-size:22px}
.media-body p{font-size:16px;line-height:1.9;color:var(--ink-500)}
.media-row--reverse .media-figure{order:2}
.media-points{list-style:none;display:grid;gap:10px;margin-top:20px}
.media-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-700);line-height:1.8}
.media-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--moss-600);margin-top:11px;flex:0 0 auto}

/* ===== 步骤条 ===== */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:8px}
.step:not(:last-child)::after{content:"";position:absolute;top:22px;left:36px;right:-24px;border-top:1px dashed var(--line)}
.step-node{position:relative;z-index:1;width:28px;height:28px;border-radius:50%;border:1px solid var(--moss-600);background:#fff;color:var(--moss-600);font-family:var(--font-num);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.step.is-current .step-node{background:var(--moss-600);border-color:var(--moss-600);color:#fff}
.step h3{font-size:18px;margin:16px 0 8px}
.step p{font-size:15px;line-height:1.85;color:var(--ink-500);margin:0}

/* ===== 数据条 ===== */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);padding:32px}
.stat-value{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--moss-700);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-value small{font-size:16px;font-weight:500;margin-left:4px;color:var(--moss-600)}
.stat-label{font-size:13px;color:var(--ink-500);margin-top:6px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-row);box-shadow:var(--shadow-soft);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;min-height:44px;font-size:17px;font-weight:500;color:var(--ink-900)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--moss-700)}
.faq-icon{width:24px;height:24px;border-radius:var(--r-pill);background:var(--lime-500);color:var(--ink-900);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;flex:0 0 auto;font-weight:700}
.faq-icon::before{content:"+"}
.faq-item[open] .faq-icon::before{content:"−"}
.faq-item[open]{border-left:3px solid var(--lime-500)}
.faq-body{padding:0 24px 16px;font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ===== CTA 卡 ===== */
.cta-card{background:var(--sand-100);border:1px solid var(--line);border-radius:var(--r-card);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-card h2{font-size:28px;margin-bottom:10px}
.cta-card p{font-size:16px;color:var(--ink-500);margin:0;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);color:var(--sand-50);padding:64px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(246,244,238,.68);margin:16px 0 0;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{font-size:15px;color:rgba(246,244,238,.76);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--lime-500)}
.footer-form label{display:block;font-size:13px;font-weight:500;color:rgba(246,244,238,.82);margin-bottom:8px}
.footer-form .field{display:flex;gap:8px}
.footer-form input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(246,244,238,.2);background:var(--ink-700);color:var(--sand-50);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.footer-form input::placeholder{color:var(--ink-300)}
.footer-form input:focus{outline:none;border-color:var(--moss-600);box-shadow:0 0 0 3px rgba(30,138,102,.28)}
.footer-form .btn{height:44px;padding:0 18px;font-size:14px}
.footer-note{font-size:13px;color:rgba(246,244,238,.54);margin-top:10px}
.footer-bottom{border-top:1px solid rgba(246,244,238,.14);margin-top:44px;padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(246,244,238,.58)}
.footer-bottom a{color:rgba(246,244,238,.78)}
.footer-bottom a:hover{color:var(--lime-500)}

/* ===== 底部固定条 ===== */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 28px -20px rgba(10,26,22,.42);transform:translateY(110%);transition:transform .24s var(--ease)}
.sticky-cta.is-visible{transform:translateY(0)}
.sticky-cta__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.sticky-cta__text{font-size:15px;color:var(--ink-700);margin:0}
.sticky-cta__actions{display:flex;align-items:center;gap:8px}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  h1,.cat-banner h1{font-size:36px}
  h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feature-grid{gap:20px}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:64px}
  .section{padding:56px 0}
  .section--tight{padding:40px 0}
  h1,.cat-banner h1{font-size:32px}
  h2{font-size:24px}
  h3,.step h3{font-size:18px}
  .brand-bar__inner{height:56px}
  .brand-text{font-size:16px}
  .brand-actions .btn{display:none}
  .hamburger{display:inline-flex}
  .cat-banner{min-height:200px}
  .cat-banner__inner{padding:36px 0}
  .cat-banner p{font-size:16px}
  .feature-grid{grid-template-columns:1fr}
  .media-figure,.media-body{grid-column:span 12}
  .media-row--reverse .media-figure{order:0}
  .media-row + .media-row{margin-top:48px}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:0 0 28px 44px}
  .step:not(:last-child)::after{top:32px;left:13px;right:auto;bottom:0;border-top:0;border-left:1px dashed var(--line);width:0}
  .step-node{position:absolute;left:0;top:0}
  .step h3{margin-top:2px}
  .stat-bar{grid-template-columns:1fr 1fr;padding:24px;gap:20px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:28px}
  .cta-card h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .sticky-cta__inner{height:64px}
  .sticky-cta__text{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .sticky-cta__inner .btn-sm{padding:0 14px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-banner h1{font-size:28px}
  .btn{width:100%}
  .btn-group .btn,.cta-actions .btn{width:100%}
  .sticky-cta__actions .btn{width:auto}
  .stat-value{font-size:26px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-body{padding:0 18px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --moss-700:#12604A; --moss-600:#1E8A66; --moss-100:#E3F0E9;
  --lime-500:#C8F32B; --lime-100:#F2F9D6;
  --clay-600:#FF5C2B; --clay-100:#FFE7DC;
  --ink-900:#0A1A16; --ink-700:#23342F; --ink-500:#4E5C57; --ink-300:#8A9691;
  --sand-50:#F6F4EE; --sand-100:#EFEBE1; --sand-200:#E2DCD0; --line:#E6E1D4;
  --r-card:18px; --r-row:14px; --r-img:14px; --r-btn:10px; --r-pill:999px; --r-input:10px;
  --sh-soft:0 1px 2px rgba(10,26,22,.04), 0 12px 28px -18px rgba(10,26,22,.18);
  --sh-lift:0 2px 4px rgba(10,26,22,.06), 0 22px 44px -22px rgba(10,26,22,.26);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:64px; --channel-h:48px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-700);
  background:var(--sand-50);
  padding-bottom:96px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--moss-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--clay-600)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 头部 ============ */
.site-header{position:relative;z-index:60}
.brand-bar{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-soft);
}
.brand-bar__inner{
  min-height:var(--header-h);
  display:flex;align-items:center;gap:16px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--moss-700);
  position:relative;flex:0 0 auto;
}
.logo__mark::before,
.logo__mark::after{content:"";position:absolute;background:var(--lime-500)}
.logo__mark::before{width:14px;height:3px;border-radius:2px;top:11px;left:10px}
.logo__mark::after{width:3px;height:12px;border-radius:2px;top:14px;left:15px}
.logo__text{
  font-size:18px;font-weight:700;color:var(--ink-900);
  white-space:nowrap;letter-spacing:.01em;
}
.logo__text em{font-style:normal;color:var(--moss-700)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--sand-100);border-color:var(--moss-600)}
.icon-btn svg{width:19px;height:19px;stroke:var(--ink-700);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border:none;border-radius:var(--r-btn);
  background:var(--clay-600);color:var(--ink-900);
  font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-header-cta:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-lift);color:var(--ink-900)}
.btn-header-cta:active{transform:translateY(0)}
.burger{display:none}

.channel-bar{
  position:sticky;top:var(--header-h);z-index:55;
  background:#fff;border-bottom:1px solid var(--line);
}
.channel-bar__inner{
  display:flex;align-items:center;gap:4px;
  height:var(--channel-h);
  overflow-x:auto;scrollbar-width:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink-500);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--lime-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.channel-link:hover{color:var(--moss-700)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.is-active{color:var(--moss-700);font-weight:700}
.channel-link.is-active::after{transform:scaleX(1)}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(10,26,22,.42);
  opacity:0;visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;
  width:84vw;max-width:360px;
  background:#fff;padding:20px 20px 120px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .24s var(--ease);
  box-shadow:var(--sh-lift);
}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer__title{font-size:15px;font-weight:700;color:var(--ink-900)}
.drawer__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-row);
  background:var(--sand-50);color:var(--ink-900);font-size:15px;font-weight:500;
}
.drawer-link:hover{background:var(--moss-100);border-color:var(--moss-600);color:var(--moss-700)}
.drawer-link.is-active{background:var(--moss-100);border-color:var(--moss-600);color:var(--moss-700);font-weight:700}

/* ============ 通用 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-weight:700;font-size:16px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--clay-600);color:var(--ink-900)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-lift);color:var(--ink-900)}
.btn--primary:active{transform:translateY(0);box-shadow:none}
.btn--ghost{background:transparent;border-color:rgba(10,26,22,.2);color:var(--ink-900)}
.btn--ghost:hover{background:rgba(10,26,22,.05);color:var(--ink-900)}
.btn--link{
  height:auto;padding:0;background:none;border:none;
  color:var(--moss-700);font-weight:700;text-decoration:underline;text-underline-offset:3px;
}
.btn--link:hover{color:var(--clay-600)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;letter-spacing:.01em;
}
.badge--moss{background:var(--moss-100);color:var(--moss-700)}
.badge--lime{background:var(--lime-100);color:var(--ink-900)}
.badge--clay{background:var(--clay-100);color:var(--clay-600)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:24px 0 0;font-size:13px;color:var(--ink-300);
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--moss-700)}
.breadcrumb span[aria-current]{color:var(--ink-900)}
.breadcrumb .sep{color:var(--ink-300)}

/* ============ 页头 ============ */
.page-head{padding:20px 0 32px;border-bottom:1px solid var(--line)}
.page-head__title{
  font-size:44px;line-height:1.25;letter-spacing:.01em;margin-bottom:14px;
}
.page-head__lead{font-size:17px;color:var(--ink-500);max-width:760px;margin:0}
.page-head__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}

/* ============ 布局 ============ */
.guide-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:56px;padding:48px 0 0;align-items:start;
}
.toc{
  position:sticky;top:calc(var(--header-h) + var(--channel-h) + 24px);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--sh-soft);padding:20px;
}
.toc__title{
  font-size:13px;font-weight:700;color:var(--ink-300);
  letter-spacing:.08em;margin-bottom:14px;
}
.toc__list{display:flex;flex-direction:column;gap:2px}
.toc__link{
  display:flex;align-items:center;gap:10px;
  min-height:42px;padding:0 10px;border-radius:10px;
  font-size:15px;color:var(--ink-500);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc__link .dot{
  width:6px;height:6px;border-radius:50%;background:var(--sand-200);flex:0 0 auto;
  transition:background .2s var(--ease);
}
.toc__link:hover{background:var(--sand-50);color:var(--moss-700)}
.toc__link:hover .dot{background:var(--lime-500)}
.toc__link.is-active{background:var(--moss-100);color:var(--moss-700);font-weight:700}
.toc__link.is-active .dot{background:var(--moss-600)}

.toc-mobile{display:none}

.content-flow{display:flex;flex-direction:column;gap:56px;min-width:0}

.section__head{margin-bottom:24px}
.section__title{font-size:30px;line-height:1.3;margin-bottom:12px}
.section__desc{font-size:16px;color:var(--ink-500);max-width:720px;margin:0}
.section h3{font-size:20px;line-height:1.3;margin-bottom:10px}
.section p{margin-bottom:1.25em;color:var(--ink-700)}

/* ============ 图片位 ============ */
.figure{margin:0}
.figure__img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-img);
  background:var(--sand-100);
}
.figure__img--wide{aspect-ratio:16/9}
.figure__cap{font-size:13px;color:var(--ink-300);margin-top:10px}

/* ============ 表格 ============ */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--sh-soft);
  -webkit-overflow-scrolling:touch;
}
table.check-table{width:100%;min-width:720px;border-collapse:collapse}
.check-table thead th{
  background:var(--sand-100);color:var(--ink-900);
  font-size:14px;font-weight:700;text-align:left;
  padding:14px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.check-table tbody td{
  padding:16px 20px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-500);vertical-align:top;
}
.check-table tbody tr:last-child td{border-bottom:none}
.check-table tbody tr:hover td{background:var(--sand-50)}
.check-table td strong{color:var(--ink-900);font-weight:700;display:block;margin-bottom:2px}
.check-table .cell-num{
  font-family:var(--font-num);font-size:15px;color:var(--ink-300);
  width:56px;white-space:nowrap;
}
.tag-mini{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--moss-100);color:var(--moss-700);font-size:12px;white-space:nowrap;
}
.tag-mini--lime{background:var(--lime-100);color:var(--ink-900)}
.tag-mini--clay{background:var(--clay-100);color:var(--clay-600)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:13px;top:8px;bottom:8px;
  border-left:1px dashed var(--line);
}
.timeline__item{position:relative;padding-bottom:32px}
.timeline__item:last-child{padding-bottom:0}
.timeline__dot{
  position:absolute;left:-28px;top:2px;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--moss-600);background:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;color:var(--moss-700);
}
.timeline__item.is-current .timeline__dot{background:var(--moss-600);color:#fff}
.timeline__body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-soft);padding:24px;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.timeline__body:hover{border-color:rgba(30,138,102,.35);transform:translateY(-2px);box-shadow:var(--sh-lift)}
.timeline__time{
  font-family:var(--font-num);font-size:13px;color:var(--ink-300);
  letter-spacing:.02em;margin-bottom:6px;
}
.timeline__body h3{font-size:19px;margin-bottom:8px}
.timeline__body p{margin:0;font-size:15px;color:var(--ink-500)}

/* ============ 条目列表 ============ */
.entry-list{display:flex;flex-direction:column;gap:12px}
.entry-row{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-row);
  padding:18px 24px;box-shadow:var(--sh-soft);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.entry-row:hover{border-color:rgba(30,138,102,.35);transform:translateY(-2px)}
.entry-row__idx{
  font-family:var(--font-num);font-size:22px;color:var(--moss-700);
  line-height:1.2;flex:0 0 auto;min-width:34px;
}
.entry-row__title{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:4px}
.entry-row__text{font-size:14px;line-height:1.7;color:var(--ink-500)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-row);
  box-shadow:var(--sh-soft);overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item[open]{border-left:3px solid var(--lime-500);border-color:var(--moss-600)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;font-size:17px;font-weight:500;color:var(--ink-900);
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--moss-700)}
.faq-item .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--lime-500);position:relative;
}
.faq-item .plus::before,
.faq-item .plus::after{
  content:"";position:absolute;background:var(--ink-900);border-radius:2px;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.faq-item .plus::before{width:12px;height:2px}
.faq-item .plus::after{width:2px;height:12px;transition:transform .2s var(--ease)}
.faq-item[open] .plus::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-item__answer{
  padding:0 24px 18px;font-size:15px;line-height:1.85;color:var(--ink-500);
  padding-top:2px;
}

/* ============ CTA ============ */
.cta-card{
  background:var(--sand-100);border:1px solid var(--line);
  border-radius:var(--r-card);padding:40px 32px;
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;
}
.cta-card__text{max-width:560px}
.cta-card__title{font-size:24px;margin-bottom:10px}
.cta-card__desc{font-size:15px;color:var(--ink-500);margin:0}
.cta-card__actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--sand-50);margin-top:88px}
.site-footer a{color:var(--sand-50)}
.site-footer a:hover{color:var(--lime-500)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;padding:64px 0 40px;
}
.footer-brand .logo__text{color:var(--sand-50);font-size:17px}
.footer-brand .logo__text em{color:var(--lime-500)}
.footer-brand p{font-size:14px;color:var(--ink-300);margin:14px 0 0;line-height:1.8}
.footer-note{font-size:13px;color:var(--ink-300);margin-top:14px}
.footer-col h4{font-size:14px;color:var(--sand-50);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{
  display:inline-flex;align-items:center;min-height:40px;
  font-size:15px;color:var(--ink-300);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-links a:hover{color:var(--lime-500);padding-left:4px}
.footer-form p{font-size:14px;color:var(--ink-300);margin:0 0 14px;line-height:1.8}
.footer-form label{display:block;font-size:13px;font-weight:500;color:var(--sand-100);margin-bottom:8px}
.footer-input-row{display:flex;gap:10px}
.footer-form input[type="email"]{
  flex:1 1 auto;min-width:0;height:48px;padding:0 14px;
  background:var(--ink-700);border:1px solid rgba(239,235,225,.18);
  border-radius:var(--r-input);color:var(--sand-50);
}
.footer-form input[type="email"]::placeholder{color:var(--ink-300)}
.footer-form input[type="email"]:focus{
  outline:none;border-color:var(--moss-600);
  box-shadow:0 0 0 3px rgba(30,138,102,.18);
}
.footer-form button{
  flex:0 0 auto;height:48px;padding:0 20px;border:none;border-radius:var(--r-btn);
  background:var(--clay-600);color:var(--ink-900);font-weight:700;cursor:pointer;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.footer-form button:hover{filter:brightness(1.06);transform:translateY(-1px)}
.footer-bottom{
  border-top:1px solid rgba(239,235,225,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-300);
}
.footer-bottom__links{display:flex;flex-wrap:wrap;gap:18px}
.to-top{
  display:inline-flex;align-items:center;min-height:44px;
  color:var(--sand-100);font-size:13px;
}
.to-top:hover{color:var(--lime-500)}

/* ============ 底部固定条 ============ */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(10,26,22,.35);
  transform:translateY(110%);
  transition:transform .24s var(--ease);
}
.sticky-cta.is-visible{transform:translateY(0)}
.sticky-cta__inner{
  min-height:72px;display:flex;align-items:center;gap:16px;
}
.sticky-cta__text{font-size:15px;color:var(--ink-700);margin:0}
.sticky-cta__btn{margin-left:auto}
.sticky-cta__close{
  width:44px;height:44px;flex:0 0 auto;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.sticky-cta__close:hover{background:var(--sand-100)}
.sticky-cta__close svg{width:16px;height:16px;stroke:var(--ink-500);stroke-width:2;fill:none;stroke-linecap:round}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .footer-grid{gap:32px}
}
@media (max-width:1024px){
  .guide-layout{grid-template-columns:1fr;gap:32px}
  .toc{display:none}
  .toc-mobile{
    display:block;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-soft);overflow:hidden;
  }
  .toc-mobile summary{
    list-style:none;cursor:pointer;min-height:56px;
    display:flex;align-items:center;justify-content:space-between;
    padding:0 20px;font-size:16px;font-weight:700;color:var(--ink-900);
  }
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile summary .plus{
    width:26px;height:26px;border-radius:50%;background:var(--lime-500);position:relative;flex:0 0 auto;
  }
  .toc-mobile summary .plus::before,
  .toc-mobile summary .plus::after{content:"";position:absolute;background:var(--ink-900);border-radius:2px;top:50%;left:50%;transform:translate(-50%,-50%)}
  .toc-mobile summary .plus::before{width:12px;height:2px}
  .toc-mobile summary .plus::after{width:2px;height:12px}
  .toc-mobile[open] summary .plus::after{transform:translate(-50%,-50%) scaleY(0)}
  .toc-mobile .toc__list{padding:0 12px 16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-head__title{font-size:32px}
  .section__title{font-size:24px}
  .section h3{font-size:18px}
  .brand-actions .btn-header-cta{display:none}
  .burger{display:inline-flex}
  .content-flow{gap:44px}
  .guide-layout{padding-top:32px;gap:24px}
  .cta-card{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-card__actions{width:100%}
  .cta-card__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .sticky-cta__inner{min-height:64px;gap:12px}
  .sticky-cta__text{font-size:14px}
  .sticky-cta__btn{height:44px;padding:0 18px;font-size:15px}
  .figure__img{aspect-ratio:4/3}
  .site-footer{margin-top:56px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-head{padding:16px 0 24px}
  .page-head__title{font-size:28px}
  .section__title{font-size:22px}
  .entry-row{padding:16px 18px;gap:12px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-item__answer{padding:0 18px 16px}
  .timeline{padding-left:24px}
  .timeline__dot{left:-24px;width:26px;height:26px;font-size:13px}
  .timeline::before{left:12px}
  .timeline__body{padding:18px}
  .sticky-cta__text{display:none}
  .sticky-cta__btn{margin-left:0;flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}