/* roulang page: index */
:root{
  --ink:#0F2A25;
  --ink-2:#173D36;
  --jade:#1E8C74;
  --accent:#E0703C;
  --paper:#F5F2EA;
  --card:#FFFFFF;
  --line:#E3DED2;
  --text:#16211F;
  --muted:#5D6E69;
  --dark-ink:#0B211D;
  --dark-text:#EDF2EE;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 0 rgba(15,42,37,.04);
  --shadow-2:0 14px 34px -20px rgba(15,42,37,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
input,button,textarea{font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:var(--dark-text);
  font-size:13px;
  letter-spacing:.02em;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:36px;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.topbar-domain{color:#C9D6D0;white-space:nowrap}
.topbar-note{
  color:#A9BCB4;
  display:flex;
  align-items:center;
  gap:10px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-note::before{content:"";width:1px;height:12px;background:#3A544D}
.topbar-links{display:flex;align-items:center;gap:14px;white-space:nowrap}
.topbar-links a{color:#C9D6D0;transition:color .18s var(--ease)}
.topbar-links a:hover{color:#fff}
.topbar-sep{width:1px;height:12px;background:#3A544D}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;
  top:0;
  z-index:60;
  background:#FBF9F3;
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s var(--ease);
}
.mainnav.is-scrolled{box-shadow:0 8px 24px -18px rgba(15,42,37,.6)}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
  min-height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-height:44px}
.brand-mark{width:34px;height:34px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  color:#2C3B37;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:12px;
  width:0;
  height:2px;
  background:var(--jade);
  transform:translateX(-50%);
  transition:width .26s var(--ease);
}
.nav-links a:hover{color:var(--jade)}
.nav-links a:hover::after{width:24px}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{width:32px}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(15,42,37,.06)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:rgba(15,42,37,.05)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--jade);
  font-weight:600;
  font-size:15px;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.btn-link .arrow{transition:transform .26s var(--ease)}
.btn-link:hover .arrow{transform:translateX(3px)}
.btn[disabled]{opacity:.4;pointer-events:none}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);
  border-radius:10px;cursor:pointer;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  background:var(--ink);
  color:var(--dark-text);
  z-index:120;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px 24px 28px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid #35544C;border-radius:10px;color:#EDF2EE;cursor:pointer;
}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  font-size:18px;
  padding:18px 0;
  border-bottom:1px solid #23423A;
  color:#E6EFEA;
}
.drawer-links a.active{color:#fff;font-weight:700}
.drawer-foot{margin-top:auto;padding-top:28px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  background:
    linear-gradient(180deg,rgba(245,242,234,.4),rgba(245,242,234,1)),
    repeating-linear-gradient(0deg,rgba(15,42,37,.045) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(90deg,rgba(15,42,37,.045) 0 1px,transparent 1px 56px);
}
.hero::before{
  content:"9";
  position:absolute;
  right:-30px;
  top:-60px;
  font-size:420px;
  line-height:1;
  font-weight:700;
  color:rgba(15,42,37,.045);
  pointer-events:none;
  letter-spacing:-20px;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--jade);
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--jade)}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--ink);
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:#41524D;
  max-width:540px;
  margin-bottom:26px;
}
.hero-points{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:30px;
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  color:#2C3B37;
}
.hero-points svg{flex-shrink:0;color:var(--jade)}
.hero-cta{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-media{position:relative}
.hero-media-frame{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:4/5;
  background:var(--ink);
}
.hero-media-frame img{width:100%;height:100%;object-fit:cover}
.hero-media-frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,42,37,.06),rgba(15,42,37,.28));
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:16px 18px;
  box-shadow:var(--shadow-2);
  min-width:190px;
}
.hero-float-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.02em;
}
.hero-float-row + .hero-float-row{margin-top:6px}
.hero-float-num{
  font-size:26px;
  font-weight:700;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}

/* ---------- 品牌主张条 ---------- */
.claim{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.claim-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.claim-text{
  font-size:clamp(19px,2.2vw,26px);
  line-height:1.5;
  font-weight:600;
  color:var(--ink);
  max-width:660px;
  letter-spacing:-.2px;
}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--card);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
  white-space:nowrap;
}
.chip-accent{
  border-color:rgba(224,112,60,.35);
  background:rgba(224,112,60,.08);
  color:#A8481D;
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head-main{display:flex;align-items:flex-start;gap:16px}
.section-index{
  font-size:28px;
  font-weight:700;
  color:var(--jade);
  font-variant-numeric:tabular-nums;
  line-height:1;
  letter-spacing:-1px;
  padding-top:6px;
}
.section-index.accent{color:var(--accent)}
.section-title-wrap{border-left:1px solid var(--line);padding-left:16px}
.section-label{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:6px;
}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.4px;
}
.section-desc{
  font-size:15px;
  color:var(--muted);
  max-width:560px;
  margin-top:10px;
  line-height:1.8;
}

/* ---------- 流程区 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:5fr 4fr;
  gap:56px;
  align-items:start;
}
.flow-item{
  display:flex;
  gap:18px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.flow-item:first-child{padding-top:0}
.flow-no{
  flex-shrink:0;
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--jade);
  font-variant-numeric:tabular-nums;
  background:var(--card);
}
.flow-body h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.flow-body p{font-size:15px;color:#41524D;line-height:1.85}
.flow-media{position:relative}
.flow-media-frame{
  border-radius:var(--r-card);
  overflow:hidden;
  position:relative;
  aspect-ratio:3/4;
  background:var(--ink);
  box-shadow:var(--shadow-2);
}
.flow-media-frame img{width:100%;height:100%;object-fit:cover}
.flow-media-frame::after{
  content:"";position:absolute;inset:0;background:rgba(15,42,37,.14);
}
.flow-caption{
  writing-mode:vertical-rl;
  position:absolute;
  right:-30px;
  top:0;
  font-size:12px;
  letter-spacing:.24em;
  color:var(--muted);
}

/* ---------- 精选内容 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
  align-items:stretch;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.feature-main{overflow:hidden;display:flex;flex-direction:column}
.feature-main-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--ink);
}
.feature-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.feature-main:hover .feature-main-media img{transform:scale(1.02)}
.feature-main-media::after{content:"";position:absolute;inset:0;background:rgba(15,42,37,.08)}
.feature-main-body{padding:24px 24px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-main-body h3{font-size:22px;line-height:1.45;font-weight:700;color:var(--ink)}
.feature-main-body p{font-size:15px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);margin-top:auto;padding-top:8px;
}
.feature-side{display:grid;gap:24px;grid-template-rows:1fr 1fr}
.mini-card{
  display:flex;gap:16px;padding:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.mini-thumb{
  width:96px;height:96px;flex-shrink:0;border-radius:var(--r-img);
  overflow:hidden;position:relative;background:var(--paper);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.mini-body h4{font-size:17px;line-height:1.5;font-weight:700;color:var(--ink)}
.mini-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-more{margin-top:auto;font-size:13px;color:var(--jade);font-weight:600;display:inline-flex;align-items:center;gap:4px}

/* ---------- 最新信息 CMS ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
  min-height:100%;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-card h3{
  font-size:20px;line-height:1.5;font-weight:700;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  font-size:14.5px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.news-foot .arrow{color:var(--jade);transition:transform .26s var(--ease)}
.news-card:hover .news-foot .arrow{transform:translateX(3px)}
.empty-state{
  grid-column:1/-1;
  border:1px dashed #C9C2B2;
  border-radius:var(--r-card);
  padding:48px 24px;
  text-align:center;
  background:rgba(255,255,255,.5);
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:16px}

/* ---------- 深色信任区 ---------- */
.trust{
  background:var(--dark-ink);
  color:var(--dark-text);
  padding:88px 0 72px;
}
.trust .section-title{color:var(--dark-text)}
.trust .section-label{color:#7E958D}
.trust .section-title-wrap{border-left-color:#274640}
.trust-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:56px;
  align-items:start;
}
.metrics{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:#20423B;
  border:1px solid #20423B;
  border-radius:var(--r-card);
  overflow:hidden;
}
.metric{
  background:var(--dark-ink);
  padding:26px 22px;
}
.metric-num{
  font-size:32px;
  font-weight:700;
  color:#EDF2EE;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  letter-spacing:-.5px;
}
.metric-num span{font-size:15px;color:#8FA79E;margin-left:4px;font-weight:500}
.metric-label{font-size:13px;color:#8FA79E;margin-top:8px;letter-spacing:.02em}
.trust-notes{display:flex;flex-direction:column;gap:16px}
.trust-notes li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;line-height:1.8;color:#C9D6D0;
  padding-bottom:16px;border-bottom:1px solid #1C3A33;
}
.trust-notes li:last-child{border-bottom:0;padding-bottom:0}
.trust-notes svg{flex-shrink:0;margin-top:5px;color:var(--jade)}
.mark-row{
  display:flex;gap:14px;flex-wrap:wrap;margin-top:40px;
  padding-top:28px;border-top:1px solid #1C3A33;
}
.mark-block{
  width:104px;height:44px;
  border-radius:8px;
  background:rgba(237,242,238,.06);
  border:1px solid #1C3A33;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;letter-spacing:.08em;color:#7E958D;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  background:transparent;border:0;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--jade)}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:50%;
  color:var(--jade);font-size:16px;line-height:1;
  transition:transform .26s var(--ease),background .26s var(--ease),border-color .26s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(30,140,116,.1);border-color:rgba(30,140,116,.35)}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .26s var(--ease);
}
.faq-a p{
  font-size:15px;line-height:1.8;color:var(--muted);
  padding:0 0 22px;max-width:820px;
}

/* ---------- 订阅 CTA ---------- */
.subscribe{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:20px;
  padding:44px 48px;
}
.subscribe-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
}
.subscribe h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;font-weight:700;color:var(--ink);
  letter-spacing:-.3px;margin-bottom:8px;
}
.subscribe p{font-size:15px;color:var(--muted)}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sub-form input{
  height:48px;
  min-width:260px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.sub-form input::placeholder{color:var(--muted)}
.sub-form input:focus{
  outline:none;
  border-color:var(--jade);
  box-shadow:0 0 0 3px rgba(30,140,116,.15);
}
.sub-form input.is-error{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.12)}
.sub-tip{font-size:12.5px;color:var(--muted);margin-top:12px;width:100%}
.sub-tip.is-error{color:#C0392B}
.sub-tip.is-ok{color:var(--jade)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-ink);color:#C9D6D0;padding:72px 0 28px}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#EDF2EE}
.footer-brand .brand-sub{color:#7E958D}
.footer-desc{font-size:14px;line-height:1.85;color:#9FB3AB;max-width:300px}
.footer-col h3{
  font-size:13px;letter-spacing:.18em;color:#7E958D;
  font-weight:600;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C9D6D0;transition:color .18s var(--ease)}
.footer-col a:hover{color:#EDF2EE}
.footer-info{font-size:14px;line-height:1.9;color:#9FB3AB}
.footer-info strong{color:#EDF2EE;font-weight:600}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid #1C3A33;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12px;color:#7E958D;
}
.footer-bottom .tips{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:#EDF2EE;
  border:0;border-radius:12px;cursor:pointer;
  opacity:0;pointer-events:none;
  transition:opacity .26s var(--ease),background .18s var(--ease),transform .18s var(--ease);
  box-shadow:var(--shadow-2);
}
.to-top.is-visible{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--ink-2);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:36px}
  .flow-grid{grid-template-columns:1fr 1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .trust-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-media-frame{aspect-ratio:21/9}
  .hero-float{left:16px;bottom:16px;padding:14px 16px;min-width:170px}
  .hero-float-num{font-size:22px}
  .section{padding:72px 0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-rows:auto auto}
  .flow-media-frame{aspect-ratio:16/10}
  .flow-caption{display:none}
  .subscribe{padding:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .topbar-inner{padding:0 20px}
  .topbar-note{display:none}
  .nav-inner{padding:0 20px;gap:12px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:10px;letter-spacing:.12em}
  .hero{padding:44px 0 52px}
  .hero h1{font-size:clamp(27px,7.6vw,36px)}
  .hero-sub{font-size:15.5px}
  .hero-cta{gap:14px}
  .hero-media-frame{aspect-ratio:4/3}
  .hero-float{position:static;margin-top:14px;width:100%;box-shadow:var(--shadow-1)}
  .claim{padding:40px 0}
  .claim-inner{flex-direction:column;align-items:flex-start;gap:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-index{font-size:22px}
  .flow-grid{grid-template-columns:1fr;gap:28px}
  .news-grid{grid-template-columns:1fr}
  .feature-main-body{padding:18px}
  .mini-thumb{width:76px;height:76px}
  .subscribe{padding:26px 20px;border-radius:16px}
  .sub-form{width:100%}
  .sub-form input{min-width:0;width:100%}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .to-top{right:16px;bottom:16px}
  body{font-size:15.5px}
}
@media (max-width:375px){
  .hero-points li{font-size:14px}
  .chip{font-size:11.5px;padding:5px 11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink:#0F2A25;
  --ink-2:#173D36;
  --jade:#1E8C74;
  --accent:#E0703C;
  --paper:#F5F2EA;
  --card:#FFFFFF;
  --line:#E3DED2;
  --text:#16211F;
  --muted:#5D6E69;
  --dark-ink:#0B211D;
  --light:#EDF2EE;
  --danger:#C0392B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-chip:999px;
  --sh-rest:0 1px 0 rgba(15,42,37,.04);
  --sh-hover:0 14px 34px -20px rgba(15,42,37,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-mid:260ms;
  --t-slow:400ms;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:var(--light);font-size:13px;letter-spacing:.02em;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-domain{color:#C9D6D0;white-space:nowrap;}
.topbar-sep{width:1px;height:12px;background:rgba(237,242,238,.28);}
.topbar-note{color:#A9BDB6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-right a{color:#C9D6D0;transition:color var(--t-fast) var(--ease);}
.topbar-right a:hover{color:#fff;}
.topbar-right .vline{width:1px;height:12px;background:rgba(237,242,238,.28);}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(245,242,234,.96);border-bottom:1px solid var(--line);transition:box-shadow var(--t-mid) var(--ease);}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(15,42,37,.6);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{width:34px;height:34px;flex:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{position:relative;font-size:15px;color:var(--text);padding:22px 0;transition:color var(--t-fast) var(--ease);}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:14px;width:0;height:2px;background:var(--jade);transform:translateX(-50%);transition:width var(--t-mid) var(--ease);}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{width:32px;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;letter-spacing:.02em;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-fast) var(--ease);}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--sh-rest);}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:rgba(15,42,37,.06);}
.btn-text{color:var(--jade);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;min-height:auto;padding:0;}
.btn-text:hover{color:var(--ink);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:90;background:var(--ink);color:var(--light);transform:translateX(100%);transition:transform var(--t-slow) var(--ease);display:flex;flex-direction:column;padding:20px;}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(237,242,238,.3);border-radius:10px;color:var(--light);font-size:22px;line-height:1;}
.drawer-links{display:flex;flex-direction:column;margin-top:8px;}
.drawer-links a{font-size:18px;padding:18px 0;border-bottom:1px solid rgba(237,242,238,.14);color:#E4EDE8;}
.drawer-links a:hover{color:#fff;}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot .btn-primary{width:100%;background:#fff;color:var(--ink);}
.drawer-foot .btn-primary:hover{background:#E4EDE8;color:var(--ink);}
body.no-scroll{overflow:hidden;}

/* ============ 文章页 ============ */
.page-head{padding:36px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.02em;}
.breadcrumb a:hover{color:var(--jade);}
.breadcrumb .sep{color:#B9C3BE;}
.breadcrumb .current{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);}

.article-hero{padding:22px 0 0;}
.article-meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.06em;background:var(--paper);color:var(--muted);border:1px solid var(--line);}
.chip-accent{background:rgba(224,112,60,.08);color:var(--accent);border-color:rgba(224,112,60,.24);}
.chip-solid{background:var(--ink);color:#fff;border-color:var(--ink);}
.article-title{font-size:clamp(30px,4.6vw,54px);line-height:1.18;font-weight:700;letter-spacing:-.5px;color:var(--ink);max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--muted);letter-spacing:.02em;}
.meta-row .vline{width:1px;height:12px;background:var(--line);}
.cover-figure{margin:28px 0 0;border-radius:var(--r-img);overflow:hidden;position:relative;background:var(--line);}
.cover-figure img{width:100%;height:auto;aspect-ratio:16/8;object-fit:cover;filter:saturate(1.02);}
.cover-figure::after{content:"";position:absolute;inset:0;background:rgba(15,42,37,.08);pointer-events:none;}
.cover-caption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;letter-spacing:.02em;}

.article-main{padding:56px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.article-shell{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:40px 44px;box-shadow:var(--sh-rest);}

/* 正文排版 */
.article-body{font-size:16px;line-height:1.85;color:var(--text);}
.article-body h2{position:relative;font-size:clamp(22px,2.2vw,26px);line-height:1.35;font-weight:700;color:var(--ink);margin:44px 0 18px;padding-left:16px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:1.05em;border-radius:2px;background:var(--jade);}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin:32px 0 12px;}
.article-body p{margin:0 0 18px;}
.article-body a{color:var(--jade);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:2px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.8;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--jade);}
.article-body ol{counter-reset:li;}
.article-body ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:0;color:var(--jade);font-weight:700;font-size:14px;}
.article-body ol li{padding-left:24px;}
.article-body blockquote{margin:24px 0;padding:20px 22px;background:var(--paper);border-left:3px solid var(--jade);border-radius:0 10px 10px 0;color:var(--ink);font-size:15.5px;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0 10px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);}
.article-body th{font-size:14px;color:var(--ink);font-weight:600;letter-spacing:.02em;border-bottom:1px solid var(--ink);}
.article-body strong{color:var(--ink);}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px;}
.pager a{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--paper);transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),background var(--t-fast) var(--ease);}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);background:#fff;}
.pager .pager-label{font-size:12px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;}
.pager .pager-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;}
.pager .next{text-align:right;align-items:flex-end;}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-rest);}
.side-title{font-size:12px;letter-spacing:.18em;color:var(--muted);margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;padding:9px 10px 9px 12px;font-size:14px;line-height:1.5;color:var(--text);border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);}
.toc-list a:hover{background:rgba(15,42,37,.03);color:var(--ink);}
.toc-list a.is-active{border-left-color:var(--jade);color:var(--jade);font-weight:600;background:rgba(30,140,116,.06);}
.toc-empty{font-size:13.5px;color:var(--muted);line-height:1.7;}
.related-mini{display:flex;flex-direction:column;gap:2px;}
.related-mini a{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.55;color:var(--text);transition:color var(--t-fast) var(--ease);}
.related-mini a:last-child{border-bottom:0;}
.related-mini a:hover{color:var(--jade);}
.related-mini span{display:block;font-size:12px;color:var(--muted);margin-top:4px;letter-spacing:.02em;}
.side-card .btn-text{margin-top:14px;display:inline-flex;font-size:14px;}

/* 相关推荐 */
.related-section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:28px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.3px;}
.section-index{font-size:13px;letter-spacing:.18em;color:var(--jade);display:block;margin-bottom:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-rest);transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease);}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.card-media{overflow:hidden;background:var(--paper);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.card:hover .card-media img{transform:scale(1.02);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--ink);}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);letter-spacing:.02em;padding-top:6px;}
.arrow{display:inline-block;transition:transform var(--t-fast) var(--ease);color:var(--jade);font-weight:700;}
.card:hover .arrow{transform:translateX(3px);}

/* 空态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--paper);}
.empty-state .empty-icon{width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--jade);}
.empty-state p{font-size:15px;color:var(--muted);}

/* CTA */
.cta-section{padding:80px 0 0;}
.cta-box{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;background:var(--card);border:1px solid var(--ink);border-radius:var(--r-card);padding:40px 44px;}
.cta-box h2{font-size:clamp(22px,2.3vw,30px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.cta-box p{font-size:14.5px;color:var(--muted);margin-top:10px;}
.subscribe{display:flex;gap:10px;}
.subscribe input{flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);}
.subscribe input::placeholder{color:var(--muted);}
.subscribe input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(30,140,116,.15);}
.subscribe input.is-error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(192,57,43,.12);}
.form-note{font-size:12px;color:var(--muted);margin-top:10px;letter-spacing:.02em;}
.form-msg{font-size:13px;margin-top:8px;min-height:18px;}
.form-msg.error{color:var(--danger);}
.form-msg.ok{color:var(--jade);}

/* 页脚 */
.site-footer{background:var(--dark-ink);color:#C9D6D0;margin-top:96px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.1;}
.footer-brand .brand-name{color:#EDF2EE;font-size:17px;font-weight:700;}
.footer-brand .brand-sub{color:#8FA9A1;font-size:11px;letter-spacing:.18em;margin-top:3px;}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB4AC;max-width:300px;}
.footer-col h3{font-size:13px;letter-spacing:.18em;color:#EDF2EE;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:#C9D6D0;transition:color var(--t-fast) var(--ease);}
.footer-col ul a:hover{color:#EDF2EE;}
.footer-info{font-size:14px;line-height:1.9;color:#9FB4AC;}
.footer-info strong{color:#EDF2EE;font-weight:600;}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(237,242,238,.12);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:12px;color:#8FA9A1;letter-spacing:.02em;}
.footer-bottom .tips{display:flex;flex-wrap:wrap;gap:18px;}
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:12px;background:var(--ink);color:#EDF2EE;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--sh-hover);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid) var(--ease),background var(--t-fast) var(--ease);z-index:70;}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--ink-2);}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:32px;}
  .article-shell{padding:34px 32px;}
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;gap:16px;}
  .sidebar .side-card{flex:1 1 260px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-box{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:767px){
  .container{padding:0 24px;}
  .topbar-note{display:none;}
  .topbar .container{height:36px;}
  body{font-size:15.5px;}
  .article-shell{padding:26px 22px;border-radius:14px;}
  .article-body h2{margin-top:36px;}
  .page-head{padding-top:24px;}
  .article-main{padding-top:36px;}
  .pager{grid-template-columns:1fr;}
  .pager .next{align-items:flex-start;text-align:left;}
  .card-grid{grid-template-columns:1fr;}
  .related-section,.cta-section{padding-top:56px;}
  .site-footer{margin-top:64px;padding:48px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .subscribe{flex-direction:column;}
  .subscribe .btn{width:100%;}
  .cover-figure img{aspect-ratio:16/10;}
}
@media (max-width:519px){
  .container{padding:0 20px;}
  .brand-name{font-size:16px;}
  .article-title{letter-spacing:-.3px;}
  .meta-row{gap:8px;font-size:12.5px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category1 */
:root{
  --ink:#0F2A25;
  --ink-2:#173D36;
  --jade:#1E8C74;
  --accent:#E0703C;
  --paper:#F5F2EA;
  --card:#FFFFFF;
  --line:#E3DED2;
  --text:#16211F;
  --muted:#5D6E69;
  --dark-ink:#0B211D;
  --dark-text:#EDF2EE;
  --dark-muted:#C9D6D0;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-rest:0 1px 0 rgba(15,42,37,.04);
  --shadow-hover:0 14px 34px -20px rgba(15,42,37,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t-fast:180ms;
  --t-mid:260ms;
  --t-slow:400ms;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--paper);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--jade);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.3px;}
h1{font-size:clamp(30px,4.6vw,54px);line-height:1.18;font-weight:700;letter-spacing:-.5px;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:650;}
p{margin:0 0 18px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.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;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--dark-text);font-size:13px;letter-spacing:.02em;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:36px;flex-wrap:nowrap;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{white-space:nowrap;color:#EDF2EE;opacity:.92;}
.topbar-divider{width:1px;height:13px;background:rgba(237,242,238,.28);}
.topbar-note{color:#BCCCC6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-right a{color:#EDF2EE;opacity:.9;}
.topbar-right a:hover{opacity:1;color:#fff;}

/* ---------- 主导航 ---------- */
.nav-wrap{
  position:sticky;top:0;z-index:60;
  background:#FBFAF5;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-mid) var(--ease);
}
.nav-wrap.is-scrolled{box-shadow:0 8px 24px -18px rgba(15,42,37,.55);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:34px;height:34px;flex:0 0 34px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.2px;}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--muted);}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  font-size:15px;color:var(--text);padding:2px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:8px;transform:translateX(-50%) scaleX(0);
  width:32px;height:2px;background:var(--jade);border-radius:2px;
  transition:transform var(--t-mid) var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);align-items:center;justify-content:center;background:#fff;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background var(--t-fast) var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform var(--t-fast) var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.btn-primary{background:var(--ink);color:#F7FAF8;}
.btn-primary:hover{background:var(--ink-2);color:#fff;transform:translateY(-1px);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:rgba(15,42,37,.06);color:var(--ink);transform:translateY(-1px);}
.btn-text{color:var(--jade);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;padding:0;min-height:44px;}
.btn-text:hover{color:var(--ink);}
.btn-light{background:#EDF2EE;color:var(--ink);}
.btn-light:hover{background:#fff;color:var(--ink);}
.btn[disabled]{opacity:.4;pointer-events:none;}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);letter-spacing:.02em;}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li::after{content:"/";margin-left:8px;color:var(--line);}
.crumb li:last-child::after{content:"";margin:0;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb li[aria-current]{color:var(--ink);}

/* ---------- 横幅 ---------- */
.page-banner{
  position:relative;margin:22px 0 0;border-radius:var(--radius-card);overflow:hidden;
  aspect-ratio:21/9;min-height:200px;
  background-image:linear-gradient(180deg,rgba(15,42,37,.30),rgba(11,33,29,.82)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  display:flex;align-items:flex-end;
}
.banner-inner{padding:34px 38px;max-width:760px;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  background:rgba(237,242,238,.14);border:1px solid rgba(237,242,238,.32);
  color:#EDF2EE;font-size:12px;letter-spacing:.18em;text-transform:uppercase;
}
.banner-line{margin:14px 0 0;color:#E7EFEA;font-size:clamp(17px,2vw,22px);line-height:1.55;font-weight:600;letter-spacing:-.2px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-size:13px;color:#B9CCC4;}

/* ---------- 文档布局 ---------- */
.section{padding:var(--space-section) 0 0;}
.section-tight{padding:64px 0 0;}
.doc-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;align-items:start;}
.doc-aside{position:sticky;top:96px;}
.toc-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow-rest);}
.toc-title{font-size:12px;letter-spacing:.18em;color:var(--muted);margin-bottom:12px;}
.toc-card ul{display:flex;flex-direction:column;gap:2px;}
.toc-card a{
  display:block;padding:9px 12px;border-left:2px solid transparent;
  color:var(--text);font-size:14px;border-radius:0 8px 8px 0;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.toc-card a:hover{background:rgba(15,42,37,.04);color:var(--ink);}
.toc-card a.active{border-left-color:var(--jade);color:var(--ink);font-weight:600;background:rgba(30,140,116,.07);}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}

.doc-main{min-width:0;}
.doc-lead{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 32px;box-shadow:var(--shadow-rest);
}
.doc-lead h1{margin-bottom:14px;}
.doc-lead .lead-text{font-size:17px;color:#28352F;line-height:1.9;}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:18px;font-size:13px;color:var(--muted);}
.meta-row span{display:inline-flex;align-items:center;gap:8px;}
.meta-row span+span::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block;margin-right:8px;}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);color:var(--muted);
  font-size:12px;letter-spacing:.06em;
}
.badge-accent{background:rgba(224,112,60,.09);border-color:rgba(224,112,60,.28);color:#B4522A;}

.doc-block{margin-top:52px;scroll-margin-top:96px;}
.block-head{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;}
.block-num{font-size:28px;font-weight:700;color:var(--jade);line-height:1;letter-spacing:-.5px;}
.block-head h2{font-size:clamp(22px,2.4vw,28px);}
.block-rule{flex:1;height:1px;background:var(--line);align-self:center;}

/* ---------- 步骤 ---------- */
.steps{display:flex;flex-direction:column;gap:18px;}
.step{
  position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-rest);
  transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6D0C1;}
.step-num{
  width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:rgba(30,140,116,.10);color:var(--jade);font-weight:700;font-size:15px;
  border:1px solid rgba(30,140,116,.25);
}
.step:nth-child(3n) .step-num{background:rgba(224,112,60,.10);color:#B4522A;border-color:rgba(224,112,60,.26);}
.step h3{margin-bottom:8px;}
.step p{margin:0;color:#33413B;font-size:15.5px;}
.step ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.step ul li{position:relative;padding-left:20px;font-size:14.5px;color:#3C4A44;}
.step ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--jade);}

/* ---------- 提示卡 / 图文 ---------- */
.note-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:8px;}
.note{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--jade);
  border-radius:12px;padding:20px 22px;box-shadow:var(--shadow-rest);
}
.note.warn{border-left-color:var(--accent);}
.note h3{font-size:16px;margin-bottom:8px;}
.note p{margin:0;font-size:14.5px;color:#3C4A44;}
.figure{margin:26px 0 0;}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.96);}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center;}

/* ---------- 表格 ---------- */
.plain-table{width:100%;border-collapse:collapse;font-size:14.5px;margin-top:6px;}
.plain-table th,.plain-table td{text-align:left;padding:14px 8px;border-bottom:1px solid var(--line);}
.plain-table th{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600;}
.plain-table tr:last-child td{border-bottom:0;}

/* ---------- 常见问题 ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  min-height:64px;padding:16px 2px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-ico{position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform var(--t-mid) var(--ease);}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--jade);border-radius:2px;}
.faq-ico::before{left:0;top:8px;width:18px;height:2px;}
.faq-ico::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-ico{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t-mid) var(--ease);}
.faq-a p{margin:0 0 18px;padding-right:36px;font-size:15px;color:#3C4A44;line-height:1.8;}

/* ---------- 锚点芯片条 ---------- */
.chipbar-wrap{position:sticky;top:76px;z-index:40;padding:14px 0;background:linear-gradient(180deg,var(--paper) 60%,rgba(245,242,234,.6));}
.chipbar{display:flex;gap:10px;overflow-x:auto;padding:4px 2px;scrollbar-width:none;}
.chipbar::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--text);font-size:13.5px;letter-spacing:.02em;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.chip:hover{transform:translateY(-1px);border-color:#CFC8B8;color:var(--ink);}
.chip.active{background:var(--ink);color:#F3F7F4;border-color:var(--ink);}

/* ---------- CTA ---------- */
.cta-card{
  margin-top:var(--space-section);
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:38px 40px;box-shadow:var(--shadow-rest);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:32px;align-items:center;
}
.cta-card h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:10px;}
.cta-card p{margin:0;color:var(--muted);font-size:15px;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 200px;height:48px;padding:0 14px;font-size:14.5px;color:var(--text);
  background:#FCFBF7;border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.cta-form input::placeholder{color:var(--muted);}
.cta-form input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(30,140,116,.15);}
.cta-form input.error{border-color:#C0392B;}
.form-msg{margin-top:10px;font-size:12.5px;color:var(--muted);min-height:18px;}
.form-msg.err{color:#C0392B;}
.form-msg.ok{color:var(--jade);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-ink);color:var(--dark-muted);margin-top:var(--space-section);padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;}
.footer-brand .brand-text .brand-name{color:#EDF2EE;font-size:18px;font-weight:700;}
.footer-brand .brand-text .brand-sub{color:#8FA7A0;font-size:11px;letter-spacing:.16em;}
.footer-desc{margin:0;font-size:14px;line-height:1.8;color:#A9BCB5;max-width:280px;}
.footer-col h3{font-size:13px;letter-spacing:.18em;color:#EDF2EE;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:#C9D6D0;font-size:14px;}
.footer-col a:hover{color:#EDF2EE;}
.footer-info{margin:0;font-size:14px;line-height:1.9;color:#A9BCB5;}
.footer-info strong{color:#EDF2EE;font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(237,242,238,.12);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12px;color:#8FA7A0;letter-spacing:.02em;
}
.footer-bottom .tips{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 回到顶部 ---------- */
.backtop{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:12px;
  background:var(--ink);color:#EDF2EE;display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid) var(--ease),background var(--t-fast) var(--ease);
  box-shadow:0 10px 24px -16px rgba(15,42,37,.8);z-index:70;
}
.backtop.show{opacity:1;visibility:visible;transform:translateY(0);}
.backtop:hover{background:var(--ink-2);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink);color:#EDF2EE;
  transform:translateX(100%);transition:transform var(--t-slow) var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 0;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:44px;height:44px;border:1px solid rgba(237,242,238,.28);border-radius:12px;color:#EDF2EE;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{color:#EDF2EE;font-size:18px;padding:18px 0;border-bottom:1px solid rgba(237,242,238,.12);}
.drawer-nav a.active{color:#8FD6C4;}
.drawer-foot{margin-top:auto;padding:24px 0 28px;}
.drawer-foot .btn{width:100%;}
body.no-scroll{overflow:hidden;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:210px minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:1023px){
  :root{--space-section:72px;}
  .nav-links{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .doc-layout{grid-template-columns:minmax(0,1fr);}
  .doc-aside{position:static;}
  .toc-card{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;}
  .toc-title,.toc-foot{grid-column:1 / -1;}
  .page-banner{aspect-ratio:16/8;}
  .note-row{grid-template-columns:minmax(0,1fr);}
  .cta-card{grid-template-columns:minmax(0,1fr);gap:22px;padding:32px 28px;}
  .chipbar-wrap{top:70px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .topbar-note{display:none;}
  .topbar-divider{display:none;}
  .banner-inner{padding:22px 22px;}
  .page-banner{aspect-ratio:16/10;min-height:220px;}
  .doc-lead{padding:24px 22px;}
  .step{grid-template-columns:40px minmax(0,1fr);padding:20px 18px;gap:14px;}
  .step-num{width:36px;height:36px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .block-num{font-size:24px;}
  .chipbar-wrap{top:66px;}
  .cta-card{padding:26px 20px;}
}
@media (max-width:520px){
  .nav-actions .btn-primary{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-name{font-size:16px;}
  .doc-lead .lead-text{font-size:16px;}
  .toc-card{grid-template-columns:1fr;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .step{padding:18px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category2 */
:root{
  --ink:#0F2A25;
  --ink-2:#173D36;
  --jade:#1E8C74;
  --accent:#E0703C;
  --paper:#F5F2EA;
  --card:#FFFFFF;
  --line:#E3DED2;
  --text:#16211F;
  --muted:#5D6E69;
  --dark-ink:#0B211D;
  --dark-text:#EDF2EE;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-chip:999px;
  --shadow:0 1px 0 rgba(15,42,37,.04);
  --shadow-hover:0 14px 34px -20px rgba(15,42,37,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:68px;
  --section-gap:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--jade)}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.5px}
h1{font-size:clamp(30px,4.6vw,54px);line-height:1.18}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:20px;letter-spacing:-.2px}
p{margin:0 0 18px}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--section-gap) 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--jade);
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:14px;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head .num{
  font-size:28px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.02em;
  margin-right:14px;
  vertical-align:middle;
}
.section-head h2{display:inline;vertical-align:middle}
.section-head .rule{flex:1;height:1px;background:var(--line);min-width:60px;margin-bottom:12px}
.section-lead{color:var(--muted);max-width:640px;font-size:15.5px;margin:14px 0 0}

/* 顶部信息条 */
.topbar{background:var(--ink);color:var(--dark-text);font-size:13px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:36px}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{opacity:.92;white-space:nowrap}
.topbar-status{display:flex;align-items:center;gap:14px;color:#C9D6D0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-status::before{content:"";width:1px;height:12px;background:rgba(237,242,238,.35);display:inline-block}
.topbar-links{display:flex;align-items:center;gap:16px;white-space:nowrap}
.topbar-links a{color:#C9D6D0}
.topbar-links a:hover{color:var(--dark-text)}
.topbar-links .sep{width:1px;height:12px;background:rgba(237,242,238,.35)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(245,242,234,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);transition:box-shadow 260ms var(--ease)}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(15,42,37,.75)}
.nav-inner{display:flex;align-items:center;gap:28px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:var(--nav-h);
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:14px;
  width:0;
  height:2px;
  background:var(--jade);
  transform:translateX(-50%);
  transition:width 260ms var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:32px}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.02em;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--ink-2);color:#fff;transform:translateY(-1px)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:rgba(15,42,37,.06);color:var(--ink)}
.btn-ghost{color:var(--jade);padding:0 4px;min-height:44px;text-decoration:underline;text-underline-offset:4px;font-weight:600}
.btn-ghost:hover{color:var(--ink-2)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:#fff;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer{position:fixed;inset:0 0 0 auto;width:min(88vw,400px);background:var(--ink);color:var(--dark-text);z-index:120;transform:translateX(102%);transition:transform 400ms var(--ease);display:flex;flex-direction:column;padding:20px 24px 24px}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer .brand-name{color:var(--dark-text)}
.drawer .brand-sub{color:#9FB3AC}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(237,242,238,.28);border-radius:10px;color:var(--dark-text);font-size:22px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer-nav a{font-size:18px;padding:18px 0;border-bottom:1px solid rgba(237,242,238,.14);color:var(--dark-text)}
.drawer-nav a.active{color:var(--jade)}
.drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn-primary{background:var(--jade);width:100%}
.drawer-cta .btn-outline{border-color:rgba(237,242,238,.45);color:var(--dark-text);width:100%}
.drawer-cta .btn-outline:hover{background:rgba(237,242,238,.12)}
.drawer-mask{position:fixed;inset:0;background:rgba(11,33,29,.5);z-index:110;opacity:0;pointer-events:none;transition:opacity 260ms var(--ease)}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* Hero */
.page-hero{position:relative;overflow:hidden;background:var(--dark-ink);color:var(--dark-text)}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center 40%;opacity:.55}
.page-hero .hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,33,29,.94) 0%,rgba(11,33,29,.82) 45%,rgba(11,33,29,.42) 100%)}
.page-hero .hero-inner{position:relative;z-index:2;padding:88px 0 72px;max-width:660px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#A9BCB5;margin-bottom:22px}
.crumb a{color:#A9BCB5}
.crumb a:hover{color:var(--dark-text)}
.crumb .slash{opacity:.5}
.page-hero h1{color:#fff;margin-bottom:18px}
.page-hero .hero-sub{font-size:17px;line-height:1.9;color:#CDDBD5;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-actions .btn-primary{background:var(--jade);color:#fff}
.hero-actions .btn-primary:hover{background:#187a65;color:#fff}
.hero-actions .btn-outline{border-color:rgba(237,242,238,.5);color:var(--dark-text)}
.hero-actions .btn-outline:hover{background:rgba(237,242,238,.12);color:var(--dark-text)}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(237,242,238,.18);font-size:13px;color:#A9BCB5}
.hero-meta strong{color:var(--dark-text);font-weight:600;margin-right:6px}

/* 锚点芯片条 */
.chipbar-wrap{position:sticky;top:var(--nav-h);z-index:60;background:var(--paper);border-bottom:1px solid var(--line)}
.chipbar{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.chipbar::-webkit-scrollbar{display:none}
.chipbar a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-chip);
  font-size:13.5px;
  color:var(--muted);
  background:#fff;
  transition:all 180ms var(--ease);
  letter-spacing:.02em;
}
.chipbar a:hover{border-color:var(--jade);color:var(--jade)}
.chipbar a.on{background:var(--ink);border-color:var(--ink);color:#fff}

/* 引述区 */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.intro-grid h2{margin-bottom:20px}
.intro-grid p{color:#36433F}
.intro-list{margin-top:26px;display:flex;flex-direction:column;gap:0}
.intro-list li{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);font-size:15px;color:#36433F}
.intro-list li:last-child{border-bottom:1px solid var(--line)}
.intro-list .dot{width:8px;height:8px;border-radius:50%;background:var(--jade);flex:0 0 auto;margin-top:11px}
.intro-figure{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow)}
.intro-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;transition:transform 400ms var(--ease)}
.intro-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,42,37,.06),rgba(15,42,37,.42))}
.intro-figure .fig-note{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;color:#fff;font-size:13px;line-height:1.7;letter-spacing:.02em}
.intro-figure .fig-note strong{display:block;font-size:15px;margin-bottom:4px;letter-spacing:.04em}

/* 卡片矩阵 */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.m-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px 22px;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform 260ms var(--ease),box-shadow 260ms var(--ease),border-color 260ms var(--ease);
}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D3CCBC}
.m-card .ico{width:44px;height:44px;border-radius:12px;background:rgba(30,140,116,.1);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.m-card .ico svg{width:22px;height:22px;stroke:var(--jade);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.m-card h3{font-size:18px;margin-bottom:10px;letter-spacing:-.2px}
.m-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0 0 18px}
.m-card .more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--jade);letter-spacing:.02em}
.m-card .more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform 180ms var(--ease)}
.m-card:hover .more svg{transform:translateX(3px)}

/* 时间轴 */
.timeline-sec{background:#EFEBE0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{position:relative;max-width:840px;margin:0 auto;padding-left:36px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:linear-gradient(180deg,var(--jade),rgba(30,140,116,.15))}
.tl-item{position:relative;padding:0 0 40px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--paper);border:2px solid var(--jade);box-shadow:0 0 0 4px rgba(245,242,234,.9)}
.tl-item .step-no{font-size:12px;letter-spacing:.18em;color:var(--accent);font-weight:700;margin-bottom:6px}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{margin:0;color:var(--muted);font-size:14.8px;max-width:660px}
.tl-item .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.06em;background:#fff;border:1px solid var(--line);color:var(--muted)}
.tag.accent{background:rgba(224,112,60,.08);border-color:rgba(224,112,60,.22);color:#B2542A;font-weight:600}

/* FAQ */
.faq{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:box-shadow 260ms var(--ease),border-color 260ms var(--ease)}
.faq-item.open{box-shadow:var(--shadow-hover);border-color:#D3CCBC}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);min-height:44px}
.faq-q:hover{color:var(--ink-2)}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform 260ms var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--jade);border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:760px}

/* CTA */
.cta-wrap{padding:0 0 var(--section-gap)}
.cta-card{
  border:1px solid var(--line);
  background:#FBF9F4;
  border-radius:24px;
  padding:44px 48px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--shadow);
}
.cta-card h2{margin-bottom:12px}
.cta-card p{color:var(--muted);margin:0;font-size:15px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 220px;
  height:48px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--text);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.sub-form input::placeholder{color:var(--muted)}
.sub-form input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(30,140,116,.15)}
.sub-form input.err{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.12)}
.form-msg{font-size:12.5px;margin-top:12px;color:var(--muted);letter-spacing:.02em}
.form-msg.error{color:#C0392B}
.form-msg.ok{color:var(--jade)}

/* Footer */
.site-footer{background:var(--dark-ink);color:#C9D6D0;padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(237,242,238,.14)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col h3{font-size:13px;letter-spacing:.18em;color:#8FA69E;font-weight:600;margin-bottom:18px;text-transform:uppercase}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:#C9D6D0}
.footer-col ul li a:hover{color:var(--dark-text)}
.footer-desc{font-size:14px;line-height:1.85;color:#9FB3AC;margin:0;max-width:300px}
.footer-info{font-size:14px;line-height:1.9;color:#9FB3AC;margin:0}
.footer-info strong{color:#C9D6D0;font-weight:600}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:22px;font-size:12px;color:#879C95;letter-spacing:.02em}
.footer-bottom .tips{display:flex;gap:18px;flex-wrap:wrap}
.brand-text .brand-name{color:var(--dark-text)}
.site-footer .brand-sub{color:#8FA69E}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;border-radius:12px;
  box-shadow:0 10px 26px -16px rgba(15,42,37,.9);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity 260ms var(--ease),transform 260ms var(--ease),background-color 180ms var(--ease);
  z-index:90;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--ink-2)}
.to-top svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .to-top{transform:none}
}

@media (max-width:1199px){
  .container{padding:0 24px}
  .matrix{grid-template-columns:repeat(3,1fr);gap:20px}
  .intro-grid{gap:40px}
}
@media (max-width:1023px){
  :root{--section-gap:72px}
  .nav-links{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-inner{gap:16px}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .intro-figure img{aspect-ratio:16/10}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;padding:36px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero .hero-inner{padding:64px 0 56px;max-width:100%}
}
@media (max-width:767px){
  :root{--section-gap:56px;--nav-h:60px}
  body{font-size:15.5px;line-height:1.8}
  .container{padding:0 20px}
  .topbar-inner{height:36px}
  .topbar-status{display:none}
  .topbar-links .help{display:none}
  .chipbar-wrap{top:var(--nav-h)}
  .matrix{grid-template-columns:1fr}
  .page-hero .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:14px;font-size:12.5px}
  .timeline{padding-left:30px}
  .tl-item::before{left:-28px}
  .cta-card{padding:28px 22px;border-radius:18px}
  .sub-form input{flex:1 1 100%}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:10px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:519px){
  .section-head{gap:12px}
  .section-head .num{font-size:22px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
}