/* roulang page: index */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06),0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 6px rgba(20,40,35,.08),0 18px 40px -16px rgba(20,40,35,.24);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-700)}
a:visited{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
section[id],div[id]{scroll-margin-top:92px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section.tight{padding:72px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:0 6px 18px -12px rgba(20,81,63,.9)}
.btn-primary:hover{background:var(--brand-500);color:#fff}
.btn-primary:visited{color:#fff}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand-700)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:#fff}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}

.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-500)}
.text-link:hover{color:var(--brand-700)}
.text-link i{transition:transform .18s ease-out}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 眉标 / 徽章 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-500);margin-bottom:14px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--brand-700);border-radius:2px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:var(--brand-050);color:var(--brand-700);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-100);color:var(--accent-600)}
.data-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:8px;border:1px solid #D9E5DF;background:#FBFDFC;
  color:var(--brand-700);font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;
}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.sec-sub{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{border-color:#D6D1C6;box-shadow:0 8px 24px -18px rgba(20,40,35,.5)}
.header-inner{
  width:100%;max-width:1320px;margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:14px;
}
.logo{display:inline-flex;align-items:baseline;flex:0 0 auto;font-size:19px;font-weight:800;color:var(--brand-700);letter-spacing:-.01em;line-height:1}
.logo:hover{color:var(--brand-700)}
.logo .logo-suffix{font-size:12px;font-weight:700;color:var(--brand-500);margin-left:1px;letter-spacing:0}
.logo-divider{width:1px;height:22px;background:var(--line);flex:0 0 auto}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;padding:10px 7px;border-radius:6px;
  font-size:13.5px;font-weight:500;color:var(--ink);white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:7px;right:7px;bottom:2px;height:2px;
  background:var(--brand-700);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.cmd-search{
  position:relative;width:156px;height:40px;
  display:flex;align-items:center;gap:8px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,width .2s ease-out;
}
.cmd-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14)}
.cmd-search i{color:var(--ink-2);font-size:13px}
.cmd-search input{border:0;outline:none;background:transparent;width:100%;font-size:13.5px}
.cmd-search input::placeholder{color:#9AA39D}
.cmd-search .kbd{
  flex:0 0 auto;font-size:11px;color:var(--ink-2);background:var(--paper);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;font-variant-numeric:tabular-nums;
}
.cmd-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:300px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:14px;display:none;
}
.cmd-search.is-open .cmd-panel{display:block}
.cmd-panel h4{font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:700;margin-bottom:10px}
.cmd-panel a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink);
}
.cmd-panel a:hover{background:var(--brand-050);color:var(--brand-700)}
.cmd-panel a span{font-size:12px;color:var(--ink-2)}
.icon-btn{
  position:relative;width:40px;height:40px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  color:var(--brand-700);cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-500);background:#FBFDFC}
.icon-btn .tip{
  position:absolute;top:calc(100% + 8px);right:0;white-space:nowrap;
  background:var(--brand-900);color:#fff;font-size:12px;padding:5px 10px;border-radius:6px;
  opacity:0;pointer-events:none;transform:translateY(-4px);transition:opacity .18s,transform .18s;
}
.icon-btn:hover .tip{opacity:1;transform:translateY(0)}
.menu-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  color:var(--brand-700);cursor:pointer;font-size:16px;
}
.search-toggle{display:none}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,36,.45);z-index:200;
  opacity:0;pointer-events:none;transition:opacity .2s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:210;
  background:var(--paper);transform:translateX(100%);
  transition:transform .24s ease-out;display:flex;flex-direction:column;
  box-shadow:-12px 0 40px -20px rgba(20,40,35,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--brand-700);cursor:pointer}
.drawer-search{padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-search input{width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;font-size:15px}
.drawer-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14)}
.drawer-nav{padding:10px 12px;overflow-y:auto;flex:1 1 auto}
.drawer-nav a{display:block;padding:13px 12px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink)}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700)}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--line)}
.drawer-hint{margin-top:12px;font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:52px 0 84px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 420px at 88% 6%,rgba(30,122,94,.10),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.02em;
}
.hero-copy h1 em{font-style:normal;color:var(--brand-700)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats li{flex:1 1 0;min-width:110px;padding:0 18px;border-left:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats strong{display:block;font-size:clamp(17px,1.5vw,21px);font-weight:800;color:var(--brand-700);letter-spacing:-.01em;font-variant-numeric:tabular-nums;white-space:nowrap}
.hero-stats span{font-size:13px;color:var(--ink-2);line-height:1.6}
.hero-visual{position:relative}
.hero-media{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);
  aspect-ratio:4/3;background:var(--brand-050);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-26px;bottom:-26px;width:264px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px 18px;
}
.hero-float-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-700);margin-bottom:10px}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 0 rgba(30,122,94,.5);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(30,122,94,.4)}70%{box-shadow:0 0 0 9px rgba(30,122,94,0)}100%{box-shadow:0 0 0 0 rgba(30,122,94,0)}}
.hero-float-list li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 0;font-size:13.5px;color:var(--ink-2);border-bottom:1px dashed #EDE9E0}
.hero-float-list li:last-child{border-bottom:0}
.hero-float-list b{color:var(--brand-700);font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- 能力卡 ---------- */
.value-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.value-aside{position:sticky;top:104px}
.value-aside h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.value-aside p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.value-aside .text-link{margin-top:22px}
.value-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.value-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E2DB}
.value-card:nth-child(2n){margin-top:24px}
.card-icon{
  width:42px;height:42px;border-radius:10px;background:var(--brand-050);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}
.value-card h3{font-size:18px;font-weight:600;line-height:1.5}
.value-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.card-arrow{
  position:absolute;right:22px;bottom:22px;color:var(--brand-500);font-size:14px;
  opacity:0;transform:translateX(-4px);transition:opacity .18s,transform .18s;
}
.value-card:hover .card-arrow{opacity:1;transform:translateX(0)}
.value-card:hover h3{color:var(--brand-500)}

/* ---------- 流程 ---------- */
.demo-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.demo-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);aspect-ratio:4/3}
.demo-media img{width:100%;height:100%;object-fit:cover}
.demo-body h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.demo-body .sec-sub{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.steps{margin-top:34px}
.step{position:relative;display:flex;gap:18px;padding-bottom:26px}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{content:"";position:absolute;left:17px;top:42px;bottom:2px;width:1px;background:var(--line)}
.step-num{
  flex:0 0 36px;height:36px;border-radius:50%;background:var(--brand-050);
  border:1px solid #D2E2DA;color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.step-body h3{font-size:17px;font-weight:600;line-height:1.5}
.step-body p{margin-top:6px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.step-body .badge{margin-top:10px;height:22px;font-size:11.5px}

/* ---------- 案例与证据 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.stat-item{padding:26px 26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:clamp(24px,2.4vw,30px);font-weight:800;color:var(--brand-700);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--brand-500)}
.stat-label{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.7}
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
.case-card{
  display:grid;grid-template-columns:170px 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E2DB}
.case-media{overflow:hidden;background:var(--brand-050);aspect-ratio:16/10}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.case-card:hover .case-media img{transform:scale(1.02)}
.case-body{padding:20px 22px}
.case-tag{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--brand-500)}
.case-body h3{margin-top:8px;font-size:17px;font-weight:600;line-height:1.5;transition:color .18s}
.case-card:hover h3{color:var(--brand-500)}
.case-body p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.case-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.partner-strip{
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;
}
.partner-strip strong{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-2);flex:0 0 auto}
.partner-strip span{font-size:14px;font-weight:600;color:#9AA39D}

/* ---------- 服务档位 ---------- */
.price-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.price-rows{display:grid;gap:16px}
.price-row{
  position:relative;display:grid;grid-template-columns:1.1fr 2.2fr 1fr auto;
  gap:26px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 28px;box-shadow:var(--shadow-1);
  transition:border-color .18s,box-shadow .18s,transform .18s;
}
.price-row:hover{border-color:#D6E2DB;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.price-row.is-featured{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,94,.09),var(--shadow-1)}
.price-row.is-featured::before{
  content:"多数企业选择";position:absolute;top:-11px;left:26px;
  background:var(--accent-600);color:#fff;font-size:11.5px;font-weight:600;
  padding:2px 10px;border-radius:999px;letter-spacing:.04em;
}
.price-name{font-size:18px;font-weight:700;color:var(--ink)}
.price-name span{display:block;margin-top:6px;font-size:13px;font-weight:400;color:var(--ink-2)}
.price-feats{display:flex;flex-wrap:wrap;gap:8px}
.price-feats li{
  font-size:13px;color:var(--ink-2);background:var(--paper);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;
}
.price-quote{font-size:15px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums}
.price-quote span{display:block;font-size:12.5px;font-weight:400;color:var(--ink-2);margin-top:4px}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:1.28fr 1fr;gap:24px;align-items:start}
.news-lead{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s,box-shadow .18s,border-color .18s;color:var(--ink);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E2DB;color:var(--ink)}
.news-lead-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-050)}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.news-lead:hover .news-lead-media img{transform:scale(1.02)}
.news-lead-body{padding:22px 24px 26px}
.news-lead-body h3{margin-top:12px;font-size:20px;font-weight:700;line-height:1.5;transition:color .18s}
.news-lead:hover .news-lead-body h3{color:var(--brand-500)}
.news-lead-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.news-side{
  display:grid;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.news-item{
  display:flex;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);
  color:var(--ink);transition:background .18s;
}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:#FBFDFC;color:var(--ink)}
.news-item-thumb{flex:0 0 72px;width:72px;height:54px;border-radius:8px;overflow:hidden;background:var(--brand-050)}
.news-item-thumb img{width:100%;height:100%;object-fit:cover}
.news-item-body{min-width:0;flex:1 1 auto}
.news-item-body h3{
  font-size:14.5px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s;
}
.news-item:hover h3{color:var(--brand-500)}
.news-item-body time{display:block;margin-top:6px;font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:var(--card);border:1px dashed #D6E2DB;border-radius:var(--radius-card);
  color:var(--ink-2);font-size:14.5px;text-align:center;
}
.empty-state i{font-size:26px;color:#B9C6BE}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;min-height:76px;padding:16px 0;background:none;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;cursor:pointer;
  transition:color .18s;
}
.faq-q:hover{color:var(--brand-500)}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-700);font-size:12px;background:#fff;transition:background .18s,color .18s,border-color .18s;
}
.faq-item.is-open .faq-icon{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 44px 24px 0;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- 需求表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.contact-copy h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.contact-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.contact-points{margin-top:26px;display:grid;gap:12px}
.contact-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.contact-points i{color:var(--brand-500);margin-top:5px;font-size:13px}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 32px 34px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.req{color:var(--brand-500);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;background:#fff;
  border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none;
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%235C6660' stroke-width='1.6' d='M1 1.5 6 6.5l5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14)}
.field.error input,.field.error select,.field.error textarea{border-color:var(--accent-600);box-shadow:0 0 0 4px rgba(180,98,44,.12)}
.field-err{display:none;margin-top:6px;font-size:12px;color:var(--accent-600)}
.field.error .field-err{display:block}
.form-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:var(--ink-2)}
.spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  display:inline-block;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.form-success{
  min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;
}
.form-success .ok{
  width:54px;height:54px;border-radius:50%;background:var(--brand-050);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.form-success h3{font-size:19px;font-weight:700}
.form-success p{font-size:14.5px;color:var(--ink-2);line-height:1.8;max-width:360px}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand-900);padding:72px 0;color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.4;font-weight:700;color:#fff;letter-spacing:-.01em}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}
.footer-logo{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-logo span{font-size:12px;font-weight:700;color:#7FC2A9;margin-left:1px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px;line-height:1.6}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-col li{font-size:14px;line-height:1.7}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:110;
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 22px;
  background:var(--brand-900);color:#fff;border-radius:999px;
  font-size:14.5px;font-weight:600;box-shadow:0 14px 34px -16px rgba(15,42,36,.85);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background .18s;
}
.float-cta:hover{background:var(--brand-500);color:#fff}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-link{font-size:13px;padding:10px 6px}
  .cmd-search{width:140px}
  .header-inner{padding:0 20px;gap:12px}
}
@media (max-width:1199px){
  .main-nav,.cmd-search,.logo-divider{display:none}
  .search-toggle{display:inline-flex}
  .menu-toggle{display:inline-flex}
  .header-actions{gap:8px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-media{aspect-ratio:16/10}
  .hero-float{left:auto;right:20px;bottom:-20px;width:250px}
  .value-grid,.demo-grid,.contact-grid{grid-template-columns:1fr;gap:34px}
  .value-aside{position:static}
  .news-layout{grid-template-columns:1fr}
  .price-row{grid-template-columns:1fr 1fr;gap:18px}
  .price-feats{grid-column:1 / -1}
  .price-row .btn{justify-self:start}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .container{padding:0 24px}
  .stat-bar{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .container{padding:0 20px}
  .header-inner{height:60px}
  .hero{padding:32px 0 64px}
  .hero-stats{margin-top:32px}
  .hero-stats li{flex:1 1 46%;padding:12px 0 0;border-left:0;border-top:1px solid var(--line)}
  .hero-stats li:first-child{padding-left:0;border-top:0;padding-top:0}
  .hero-stats li:nth-child(2){padding-top:0;border-top:0}
  .hero-stats strong{font-size:18px}
  .hero-float{position:static;width:auto;margin-top:16px;left:auto;right:auto;bottom:auto}
  .value-cards{grid-template-columns:1fr}
  .value-card:nth-child(2n){margin-top:0}
  .case-card{grid-template-columns:1fr}
  .case-media{aspect-ratio:16/9}
  .price-row{grid-template-columns:1fr;padding:22px 20px}
  .price-row.is-featured::before{left:18px}
  .form-card{padding:24px 20px 28px}
  .cta-band{padding:56px 0 96px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding:52px 0 84px}
  .footer-brand p{max-width:none}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;height:56px;border-radius:0;
    justify-content:center;box-shadow:0 -8px 24px -16px rgba(15,42,36,.7);transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  body{padding-bottom:0}
  .faq-a-inner{padding-right:12px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .stat-num{font-size:24px}
  .news-item-thumb{flex:0 0 60px;width:60px;height:46px}
}

/* roulang page: article */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,40,35,.06), 0 8px 24px -12px rgba(20,40,35,.16);
  --sh-2:0 2px 6px rgba(20,40,35,.08), 0 18px 40px -16px rgba(20,40,35,.26);
  --gap-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-700)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
ul,ol{margin:0}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:575px){.container{padding:0 20px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(20,40,35,.35);border-bottom-color:#D6D1C6}
.header-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:inline-flex;align-items:baseline;font-size:20px;font-weight:800;color:var(--brand-700);letter-spacing:.01em;white-space:nowrap}
.brand span{font-size:12px;font-weight:600;color:var(--brand-500);margin-left:1px;letter-spacing:.04em}
.brand:hover{color:var(--brand-500)}
.brand-divider{width:1px;height:22px;background:var(--line);flex:none}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:4px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-700);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:260px;height:40px;padding:0 10px 0 12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14)}
.command-search svg{flex:none;color:var(--ink-2)}
.command-search input{
  flex:1;min-width:0;width:100%;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.command-search input::placeholder{color:#98A29C}
.kbd{font-size:11px;line-height:1;color:var(--ink-2);border:1px solid var(--line);background:var(--paper);border-radius:5px;padding:3px 5px;font-variant-numeric:tabular-nums}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-1);padding:10px;display:none;z-index:70;
}
.command-search.is-open .search-panel{display:block}
.search-panel h5{margin:4px 6px 8px;font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:600}
.search-panel a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink);transition:background .16s ease,color .16s ease}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700)}
.icon-btn{
  width:40px;height:40px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);color:var(--brand-700);
  cursor:pointer;transition:all .18s ease;position:relative;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-1px)}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--brand-900);color:#fff;font-size:12px;line-height:1;padding:6px 8px;border-radius:6px;
  white-space:nowrap;opacity:0;visibility:hidden;transition:opacity .16s ease;pointer-events:none;
}
.icon-btn:hover::after{opacity:1;visibility:visible}
.menu-toggle{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  font-family:inherit;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(30,122,94,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--brand-700);border-color:rgba(20,81,63,.35)}
.btn-outline:hover{background:var(--brand-050);border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ============ 抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(15,42,36,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:var(--paper);z-index:90;transform:translateX(100%);
  transition:transform .24s ease;overflow-y:auto;padding:20px 20px 40px;
  box-shadow:-16px 0 40px -20px rgba(15,42,36,.5);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-btn);margin-bottom:20px}
.drawer-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:15px;font-family:inherit}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{padding:13px 12px;border-radius:10px;font-size:16px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-700)}
.drawer-meta{border-top:1px solid var(--line);padding-top:18px;font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:10px;margin-bottom:22px}

/* ============ 面包屑 ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.5)}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-2);padding:16px 0;
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand-500)}
.crumb-sep{color:#B9C0BA}
.breadcrumb .current{color:var(--ink);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-hero{padding:44px 0 0}
.article-hero-inner{max-width:760px;margin:0 auto}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--brand-050);color:var(--brand-700);
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.article-hero h1{
  font-size:clamp(28px,3.6vw,42px);line-height:1.3;font-weight:700;letter-spacing:-.02em;
  margin:18px 0 18px;color:var(--ink);
}
.meta-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums;
  padding-bottom:28px;border-bottom:1px solid var(--line);
}
.meta-row .sep{width:1px;height:14px;background:var(--line)}
.article-figure{margin:32px 0 0;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1)}
.article-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 正文 ============ */
.article-main{padding:36px 0 96px}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body h2{
  font-size:clamp(21px,2.1vw,26px);line-height:1.4;margin:48px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand-700);border-radius:2px;
}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--brand-700)}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--brand-700)}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(30,122,94,.3)}
.article-body a:hover{border-bottom-color:var(--brand-500)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.article-body ul>li{position:relative;padding-left:22px;margin-bottom:9px}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--brand-500);border-radius:1px;
}
.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body ol>li{margin-bottom:9px;padding-left:4px}
.article-body ol>li::marker{color:var(--brand-700);font-weight:700;font-variant-numeric:tabular-nums}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--brand-050);
  border-left:3px solid var(--brand-700);border-radius:0 10px 10px 0;color:#33453E;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:-14px}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th{background:var(--brand-050);border:1px solid var(--line);padding:10px 14px;text-align:left;color:var(--brand-700);font-weight:600}
.article-body td{border:1px solid var(--line);padding:10px 14px;color:var(--ink-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.empty-state{
  max-width:760px;margin:0 auto;padding:56px 28px;text-align:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.empty-state .mark{
  width:48px;height:48px;margin:0 auto 18px;border:1.6px solid var(--line);border-radius:14px;
  display:flex;align-items:center;justify-content:center;color:var(--brand-500);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);font-size:15px;margin:0 0 22px}

/* ============ 文末 ============ */
.article-foot{max-width:760px;margin:0 auto;padding-top:32px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:all .18s ease;
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-050)}
.share-row{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2)}
.share-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink-2);
  cursor:pointer;transition:all .18s ease;
}
.share-btn:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px)}

/* ============ 相关推荐 ============ */
.related{padding:0 0 96px}
.section-head{max-width:760px;margin:0 auto 28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.1em;color:var(--brand-500);margin-bottom:10px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-500);border-radius:2px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.section-head p{font-size:15px;color:var(--ink-2);margin:8px 0 0}
.related-grid{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D1C6}
.rel-thumb{overflow:hidden;background:var(--brand-050)}
.rel-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body .rel-tag{font-size:12px;color:var(--brand-500);font-weight:600;letter-spacing:.06em}
.rel-body h3{font-size:16px;line-height:1.5;font-weight:600;color:var(--ink)}
.rel-card:hover h3{color:var(--brand-500)}
.rel-body time{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;margin-top:auto}

.back-row{max-width:760px;margin:36px auto 0;display:flex;justify-content:center}

/* ============ 结尾 CTA ============ */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.cta-inner p{margin:10px 0 0;font-size:15px;color:#A9BCB4;max-width:52ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--brand-900)}
.cta-band .btn-primary:hover{background:var(--brand-050);color:var(--brand-900)}
.cta-band .btn-outline{border-color:rgba(255,255,255,.45);color:#fff}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#D8E4DE;padding-top:64px}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.01em}
.footer-logo span{font-size:12px;color:#8FBFAB;margin-left:1px;letter-spacing:.04em}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9BCB4;margin:0;max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:#A9BCB4;line-height:1.7}
.footer-col a{font-size:14px;color:#A9BCB4}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;font-size:13px;color:#8FA69D;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:65;
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 22px;
  border-radius:999px;background:var(--brand-900);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 34px -12px rgba(15,42,36,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .18s ease;
}
.float-cta:hover{background:var(--brand-700);color:#fff}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .command-search{width:210px}
  .main-nav{gap:20px}
  .nav-link{font-size:14px}
}
@media (max-width:1023px){
  :root{--gap-sec:72px}
  .main-nav,.command-search,.header-actions .icon-btn{display:none}
  .menu-toggle{
    display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);
    color:var(--brand-700);cursor:pointer;
  }
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .article-main{padding:28px 0 72px}
}
@media (max-width:767px){
  :root{--gap-sec:56px}
  .header-inner{height:60px}
  .article-hero{padding:28px 0 0}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{margin-top:36px}
  .related-grid{grid-template-columns:1fr}
  .related{padding-bottom:56px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    transform:translateY(100%);padding:0 16px;
  }
  .float-cta.is-visible{transform:translateY(0)}
  body{padding-bottom:72px}
  .back-row{margin-top:28px}
}
@media (max-width:575px){
  .article-hero h1{font-size:26px}
  .meta-row{gap:10px;font-size:13px}
  .meta-row .sep{display:none}
  .article-foot{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06),0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 4px rgba(20,40,35,.08),0 16px 34px -14px rgba(20,40,35,.24);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease);}
a:visited{color:var(--brand-500);}
a:hover{color:var(--brand-700);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-color:#D6D1C4;box-shadow:0 6px 20px -14px rgba(20,40,35,.35);}
.header-inner{display:flex;align-items:center;height:68px;gap:18px;}
.brand{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--brand-700);white-space:nowrap;}
.brand:hover{color:var(--brand-500);}
.brand span{font-size:13px;font-weight:600;color:var(--brand-500);margin-left:1px;}
.brand-divider{width:1px;height:24px;background:var(--line);flex:0 0 auto;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:6px;flex:1 1 auto;min-width:0;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:8px 0;white-space:nowrap;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:1px;height:2px;
  background:var(--brand-700);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}

.command-search{position:relative;width:260px;}
.command-search .search-field{position:relative;display:flex;align-items:center;}
.command-search svg.mag{
  position:absolute;left:12px;width:18px;height:18px;stroke:var(--ink-2);
  fill:none;stroke-width:1.6;stroke-linecap:round;pointer-events:none;
}
.command-search input{
  width:100%;height:40px;padding:0 52px 0 38px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:14px;color:var(--ink);transition:border-color var(--ease),box-shadow var(--ease);
}
.command-search input::placeholder{color:#9AA39D;}
.command-search input:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.kbd{
  position:absolute;right:10px;font-size:11px;line-height:1;color:var(--ink-2);
  border:1px solid var(--line);border-radius:6px;padding:4px 6px;background:var(--paper);
}
.search-panel{
  position:absolute;top:48px;left:0;right:0;background:var(--card);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-2);
  padding:10px;display:none;
}
.search-panel.is-open{display:block;}
.search-panel h5{
  margin:0 0 6px;padding:4px 8px;font-size:12px;letter-spacing:.08em;
  color:var(--ink-2);font-weight:600;
}
.search-panel a{
  display:block;padding:8px;border-radius:8px;font-size:14px;color:var(--ink);
  transition:background var(--ease),color var(--ease);
}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700);}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:50%;background:transparent;color:var(--ink-2);
  cursor:pointer;transition:all var(--ease);
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-050);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-050);}
.btn-onDark{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-onDark:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:transparent;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,36,.45);opacity:0;visibility:hidden;
  transition:opacity 220ms ease-out,visibility 220ms;z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:200;width:340px;max-width:86vw;height:100%;
  background:var(--paper);transform:translateX(100%);transition:transform 220ms ease-out;
  overflow-y:auto;padding:22px 22px 40px;box-shadow:var(--shadow-2);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head .brand{font-size:19px;}
.drawer nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.drawer nav a{
  padding:12px 10px;border-radius:10px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--brand-700);font-weight:600;background:var(--brand-050);}
.drawer nav a:hover{background:var(--brand-050);}
.drawer .drawer-search{position:relative;margin-bottom:22px;}
.drawer .drawer-search input{
  width:100%;height:44px;padding:0 14px 0 38px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:var(--card);font-size:14px;
}
.drawer .drawer-search svg{position:absolute;left:12px;top:13px;width:18px;height:18px;fill:none;stroke:var(--ink-2);stroke-width:1.6;}
.drawer .drawer-contact{font-size:14px;color:var(--ink-2);line-height:1.9;margin-bottom:20px;}
.drawer .drawer-contact strong{color:var(--ink);display:block;margin-bottom:6px;font-size:13px;letter-spacing:.08em;}
.drawer .btn{width:100%;}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(rgba(15,42,36,.82),rgba(15,42,36,.7)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;padding:88px 0 76px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:26px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span.sep{opacity:.5;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--accent-100);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  padding:6px 12px;border-radius:999px;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.25;font-weight:700;letter-spacing:-.02em;
  color:#fff;max-width:18em;
}
.page-hero .lede{
  margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:760px;
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0;margin-top:36px;
  border-top:1px solid rgba(255,255,255,.2);padding-top:26px;
}
.hero-facts .fact{padding-right:34px;margin-right:34px;border-right:1px solid rgba(255,255,255,.2);}
.hero-facts .fact:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-facts .fact b{display:block;font-size:24px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.hero-facts .fact span{font-size:14px;color:rgba(255,255,255,.75);}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section.alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head .kicker{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--brand-500);margin-bottom:12px;
}
.sec-head h2{
  position:relative;font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;
  letter-spacing:-.01em;padding-left:16px;color:var(--ink);
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  background:var(--brand-700);border-radius:2px;
}
.sec-head p{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:44em;}

/* 要点卡 2x2 错位 */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.point-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 28px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.point-card:nth-child(2),.point-card:nth-child(4){transform:translateY(24px);}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D2CCC0;}
.point-card:nth-child(2):hover,.point-card:nth-child(4):hover{transform:translateY(22px);}
.point-card .p-ico{
  width:44px;height:44px;border-radius:12px;background:var(--brand-050);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.point-card .p-ico svg{width:22px;height:22px;fill:none;stroke:var(--brand-700);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.point-card h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.point-card p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.point-card .p-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.point-card .p-more svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease);}
.point-card:hover .p-more svg{transform:translateX(3px);}
.point-grid-wrap{padding-bottom:24px;}

/* 编号步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;padding-top:30px;border-top:2px solid var(--line);
  transition:border-color var(--ease);
}
.step:hover{border-color:var(--brand-500);}
.step .s-num{
  position:absolute;top:-19px;left:0;width:36px;height:36px;border-radius:50%;
  background:var(--brand-700);color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:18px;font-weight:600;margin:14px 0 8px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}
.step .s-time{
  display:inline-block;margin-top:14px;font-size:12px;letter-spacing:.04em;
  color:var(--accent-600);background:var(--accent-100);border-radius:999px;padding:4px 10px;
}

/* 节奏状态条 */
.rhythm{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 28px;}
.rhythm-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
}
.rhythm-item .r-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.rhythm-item .r-name{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 0 0 rgba(30,122,94,.5);animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(30,122,94,.45);}
  70%{box-shadow:0 0 0 9px rgba(30,122,94,0);}
  100%{box-shadow:0 0 0 0 rgba(30,122,94,0);}
}
.rhythm-item .r-val{font-size:14px;font-weight:700;color:var(--brand-700);}
.bar{height:6px;border-radius:999px;background:var(--brand-050);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--brand-700));}
.rhythm-item .r-note{margin-top:10px;font-size:13.5px;color:var(--ink-2);}

/* 排行式长条列表 */
.rank-list{border-top:1px solid var(--line);}
.rank-item{
  display:flex;gap:24px;align-items:flex-start;padding:26px 4px;
  border-bottom:1px solid var(--line);transition:background-color var(--ease);
}
.rank-item:hover{background:#FFFFFF;}
.rank-item .rank-no{
  flex:0 0 auto;font-size:30px;font-weight:700;line-height:1;color:var(--brand-050);
  -webkit-text-stroke:1px var(--brand-500);letter-spacing:-.02em;min-width:56px;
}
.rank-item .rank-body h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.rank-item .rank-body p{font-size:14.5px;color:var(--ink-2);max-width:70ch;}
.rank-item .rank-tag{
  flex:0 0 auto;align-self:center;font-size:12px;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-050);border-radius:999px;padding:5px 12px;
}

/* 图文带 */
.split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.split figure{margin:0;}
.split img{border-radius:var(--radius-img);box-shadow:var(--shadow-1);aspect-ratio:16/10;object-fit:cover;width:100%;}
.split .split-txt h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em;margin-bottom:16px;}
.split .split-txt p{font-size:15.5px;color:var(--ink-2);margin-bottom:14px;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink);align-items:flex-start;}
.check-list li svg{flex:0 0 auto;width:18px;height:18px;margin-top:5px;fill:none;stroke:var(--brand-500);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* 数据条 */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.metric{padding:30px 26px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric b{display:block;font-size:30px;font-weight:700;color:var(--brand-700);letter-spacing:-.02em;line-height:1.2;}
.metric b small{font-size:15px;font-weight:600;margin-left:2px;}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2);}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:76px;padding:16px 0;font-size:17px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-item summary .sign::before{left:0;right:0;top:10px;height:2px;}
.faq-item summary .sign::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item[open] summary .sign::after{transform:scaleY(0);opacity:0;}
.faq-item .faq-body{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:68ch;}

/* CTA 带 */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em;color:#fff;}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.76);max-width:56ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 联系表单 */
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field label em{color:var(--accent-600);font-style:normal;margin-left:3px;}
.field input,.field select,.field textarea{
  height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--card);font-size:15px;transition:border-color var(--ease),box-shadow var(--ease);
  appearance:none;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235C6660' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.field .hint{font-size:12.5px;color:var(--ink-2);}
.form-foot{display:flex;align-items:center;gap:18px;margin-top:24px;flex-wrap:wrap;}
.form-foot .note{font-size:13.5px;color:var(--ink-2);}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;}
.footer-logo{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:14px;}
.footer-logo span{font-size:13px;font-weight:600;color:rgba(255,255,255,.66);}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;line-height:1.75;color:rgba(255,255,255,.7);}
.footer-col a{color:rgba(255,255,255,.78);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:150;
  display:inline-flex;align-items:center;gap:8px;height:50px;padding:0 22px;border-radius:999px;
  background:var(--brand-900);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 200ms ease-out,transform 200ms ease-out,visibility 200ms,background-color var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--brand-500);color:#fff;}
.float-cta svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* 响应式 */
@media (max-width:1279px){
  .main-nav{gap:20px;}
  .nav-link{font-size:14.5px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav,.brand-divider,.command-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:72px 0;}
  .page-hero{padding:64px 0 56px;}
  .point-grid{grid-template-columns:1fr 1fr;}
  .point-card:nth-child(2),.point-card:nth-child(4){transform:none;}
  .point-card:nth-child(2):hover,.point-card:nth-child(4):hover{transform:translateY(-2px);}
  .point-grid-wrap{padding-bottom:0;}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:2fr 1fr;gap:30px;}
  .rhythm{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{height:60px;gap:10px;}
  .brand{font-size:18px;}
  .section{padding:56px 0;}
  .hero-facts{gap:0;flex-wrap:wrap;}
  .hero-facts .fact{padding-right:22px;margin-right:22px;margin-bottom:14px;}
  .hero-facts .fact b{font-size:21px;}
  .point-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:34px;}
  .rank-item{flex-direction:column;gap:12px;}
  .rank-item .rank-no{font-size:26px;min-width:0;}
  .rank-item .rank-tag{align-self:flex-start;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;height:56px;border-radius:0;justify-content:center;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  .site-footer{padding-bottom:84px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06),0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 4px rgba(20,40,35,.08),0 18px 36px -16px rgba(20,40,35,.24);
  --sp:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease-out}
a:visited{color:var(--brand-500)}
a:hover{color:var(--brand-700)}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink)}
p{margin:0 0 1.2em}
ul{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.btn-primary:visited{color:#fff}
.btn-primary:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-primary:active{background:var(--brand-900);border-color:var(--brand-900);transform:translateY(0)}
.btn-outline{background:transparent;color:var(--brand-700);border-color:#C6D6CF}
.btn-outline:hover{background:var(--brand-050);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px)}
.btn-outline:active{background:#DCE9E3;transform:translateY(0)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.site-header.is-scrolled{border-color:#CFC7B7;box-shadow:0 8px 24px -18px rgba(20,40,35,.55)}
.header-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand-wrap{display:flex;align-items:center;gap:18px}
.logo{font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900)}
.logo:visited{color:var(--brand-900)}
.logo span{font-size:12px;font-weight:600;color:var(--brand-500);margin-left:1px;vertical-align:baseline}
.logo:hover{color:var(--brand-700)}
.nav-divider{width:1px;height:22px;background:var(--line);display:block}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:8px 0;transition:color .18s ease-out;
}
.nav-link:visited{color:var(--ink)}
.nav-link:hover{color:var(--brand-500)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-14px;height:2px;background:var(--brand-700);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:260px;height:40px;padding:0 10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-input);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14)}
.command-search svg{flex:0 0 auto;color:var(--ink-2)}
.command-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink);
}
.command-search input::placeholder{color:#9AA39D}
.kbd{font-size:11px;color:var(--ink-2);border:1px solid var(--line);border-radius:5px;padding:1px 5px;line-height:1.4}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;width:320px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-2);padding:14px;display:none;
}
.command-search.is-open .search-panel{display:block}
.search-panel h5{margin:0 0 10px;font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:600}
.search-panel a{
  display:block;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink);
}
.search-panel a:visited{color:var(--ink)}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700)}
.icon-btn{
  position:relative;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--brand-700);cursor:pointer;
  transition:border-color .18s ease-out,color .18s ease-out,background-color .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-500);background:var(--brand-050)}
.icon-btn .tip{
  position:absolute;top:calc(100% + 8px);right:0;white-space:nowrap;
  background:var(--brand-900);color:#fff;font-size:12px;padding:5px 9px;border-radius:6px;
  opacity:0;pointer-events:none;transition:opacity .16s ease-out;
}
.icon-btn:hover .tip{opacity:1}
.mobile-toggle{display:none;width:40px;height:40px;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--brand-700);cursor:pointer;align-items:center;justify-content:center}
.mobile-toggle:hover{border-color:var(--brand-500)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,36,.45);z-index:90;
  opacity:0;pointer-events:none;transition:opacity .2s ease-out;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:var(--paper);z-index:100;padding:20px;
  transform:translateX(100%);transition:transform .24s ease-out;
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--brand-700);cursor:pointer}
.drawer-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-input);height:44px;padding:0 12px;margin-bottom:20px}
.drawer-search input{flex:1;border:0;outline:0;background:transparent;font-size:15px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-nav a{padding:12px 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-nav a:visited{color:var(--ink)}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:600}
.drawer-note{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:18px}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;color:#fff;
  background-image:linear-gradient(120deg,rgba(15,42,36,.86) 0%,rgba(15,42,36,.68) 62%,rgba(20,81,63,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:84px 0 128px;
}
.page-hero .eyebrow{color:#9ED3BE}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-500);margin-bottom:12px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.25;font-weight:700;letter-spacing:-.02em;
  color:#fff;max-width:15em;
}
.page-hero .lead{
  margin:18px 0 0;max-width:62ch;font-size:17px;line-height:1.8;color:rgba(255,255,255,.85);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-marks{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.mark{
  font-size:13px;color:rgba(255,255,255,.9);
  border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:5px 13px;
}
.seal{
  position:absolute;right:32px;bottom:34px;width:44px;height:44px;
  border:1px solid rgba(255,255,255,.4);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;line-height:1.2;text-align:center;color:rgba(255,255,255,.85);letter-spacing:.06em;
}

/* ---------- 实时状态条 ---------- */
.live-strip-wrap{margin-top:-56px;position:relative;z-index:5}
.live-strip{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:24px 8px;
}
.live-item{padding:0 22px;border-right:1px solid var(--line)}
.live-item:last-child{border-right:0}
.live-top{display:flex;align-items:center;gap:7px;margin-bottom:6px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);position:relative}
.dot::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid rgba(30,122,94,.4);animation:pulse 2.2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.9}100%{transform:scale(1.25);opacity:0}}
.live-label{font-size:12px;letter-spacing:.06em;color:var(--ink-2)}
.live-value{font-size:26px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.3}
.live-value small{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:4px}
.live-desc{font-size:13px;color:var(--ink-2);line-height:1.6}

/* ---------- 区块通式 ---------- */
.section{padding:var(--sp) 0}
.section--tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin:8px 0 12px;position:relative;padding-left:0;
}
.section-head h2::before{
  content:"";display:block;width:4px;height:20px;border-radius:2px;background:var(--brand-700);margin-bottom:14px;
}
.section-head p{font-size:15px;color:var(--ink-2);line-height:1.75;margin:0}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.is-center h2::before{margin-left:auto;margin-right:auto}

/* ---------- 图文交错长条 ---------- */
.zig-list{border-top:1px solid var(--line)}
.zig{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.zig.is-reverse .zig-media{order:2}
.zig-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/10;background:var(--brand-050);box-shadow:var(--shadow-1);
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.zig:hover .zig-media img{transform:scale(1.02)}
.zig-media .m-tag{
  position:absolute;left:14px;top:14px;background:rgba(15,42,36,.82);color:#fff;
  font-size:12px;letter-spacing:.06em;border-radius:999px;padding:5px 12px;
}
.zig-body h3{font-size:22px;line-height:1.5;font-weight:600;margin-bottom:12px}
.zig-body p{font-size:16px;color:var(--ink-2);line-height:1.85;margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.7;color:var(--ink)}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:1.6px solid var(--brand-500);border-bottom:1.6px solid var(--brand-500);
  transform:rotate(-45deg);
}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--brand-700)}
.link-arrow:hover{gap:11px;color:var(--brand-500)}

/* ---------- 序号式长条 ---------- */
.num-list{border-top:1px solid var(--line)}
.num-item{
  display:grid;grid-template-columns:88px minmax(0,1fr) 210px;gap:28px;align-items:start;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.num-item:hover{background:#FBF9F5}
.num-mark{
  font-size:34px;font-weight:700;line-height:1;color:var(--brand-500);opacity:.42;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.num-item h3{font-size:19px;font-weight:600;margin-bottom:6px}
.num-item p{font-size:15px;color:var(--ink-2);line-height:1.75;margin:0}
.num-side{text-align:right}
.num-side .tag{display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--brand-700);background:var(--brand-050);border-radius:999px;padding:5px 12px}
.num-side .meta{display:block;margin-top:8px;font-size:13px;color:var(--ink-2)}

/* ---------- 分组主题卡 ---------- */
.group-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.group-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.group-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);border-color:#D6D0C2}
.group-icon{
  width:40px;height:40px;border-radius:10px;background:var(--brand-050);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.group-card h3{font-size:18px;font-weight:600;line-height:1.5}
.group-card p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0}
.group-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.group-foot .count{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.group-foot .count b{color:var(--accent-600);font-size:15px}

/* ---------- 排行表 ---------- */
.rank-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow-x:auto;box-shadow:var(--shadow-1)}
table.rank{width:100%;min-width:760px}
table.rank th{
  background:var(--brand-050);color:var(--ink-2);font-size:13px;font-weight:600;
  text-align:left;padding:14px 20px;white-space:nowrap;
}
table.rank td{padding:16px 20px;border-top:1px solid var(--line);font-size:15px;color:var(--ink)}
table.rank td.rank-no{width:88px;font-size:18px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums}
table.rank td.is-top{color:var(--accent-600);font-weight:700}
table.rank td.numc{font-variant-numeric:tabular-nums;font-weight:600}
.badge{display:inline-block;font-size:12px;border-radius:999px;padding:4px 11px;line-height:1.5}
.badge-live{background:var(--brand-050);color:var(--brand-700)}
.badge-warn{background:var(--accent-100);color:var(--accent-600)}
.badge-mute{background:#EFF1ED;color:var(--ink-2)}
.rank-note{margin-top:14px;font-size:13px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:none;border:0;padding:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand-500)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-icon::before{left:0;top:9px;width:20px;height:1.6px}
.faq-icon::after{left:9px;top:0;width:1.6px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a p{padding:0 0 24px;margin:0;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:66ch}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.4;color:#fff;font-weight:700;max-width:22em}
.cta-inner p{margin:12px 0 0;font-size:15px;color:rgba(255,255,255,.75);max-width:52ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px}
.footer-logo{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-logo span{font-size:12px;font-weight:600;color:#8FC7B1;margin-left:1px}
.footer-brand p{font-size:14px;line-height:1.8;margin:0;max-width:34ch}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;line-height:1.7}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px}
.footer-col a:visited{color:rgba(255,255,255,.78)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--brand-900);color:#fff;font-size:15px;font-weight:600;
  padding:14px 22px;border-radius:999px;box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .18s ease-out;
}
.float-cta:visited{color:#fff}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--brand-500);color:#fff}

/* ---------- 锚点偏移 ---------- */
section[id],div[id]{scroll-margin-top:88px}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .main-nav{gap:18px}
  .command-search{width:210px}
}
@media (max-width:1180px){
  .main-nav,.nav-divider,.command-search{display:none}
  .mobile-toggle{display:inline-flex}
}
@media (max-width:1024px){
  :root{--sp:72px}
  .container{padding:0 24px}
  .zig{gap:36px}
  .group-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:2fr 1fr 1.4fr 1.4fr;gap:26px}
  .num-item{grid-template-columns:64px minmax(0,1fr) 170px;gap:20px}
}
@media (max-width:768px){
  :root{--sp:56px}
  .container{padding:0 20px}
  .header-inner{height:60px}
  .page-hero{padding:56px 0 112px}
  .page-hero .lead{font-size:16px}
  .seal{display:none}
  .live-strip{grid-template-columns:repeat(2,1fr);padding:16px 4px}
  .live-item{padding:14px 18px;border-right:0;border-bottom:1px solid var(--line)}
  .live-item:nth-child(odd){border-right:1px solid var(--line)}
  .live-item:nth-last-child(-n+2){border-bottom:0}
  .zig{grid-template-columns:1fr;gap:22px;padding:32px 0}
  .zig.is-reverse .zig-media{order:0}
  .num-item{grid-template-columns:1fr;gap:10px}
  .num-mark{font-size:26px;opacity:.5}
  .num-side{text-align:left}
  .group-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;min-height:68px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{
    left:12px;right:12px;bottom:0;border-radius:0;height:56px;justify-content:center;
    padding:0;font-size:15px;
  }
  body{padding-bottom:72px}
}
@media (max-width:520px){
  .btn{height:44px;padding:0 18px;font-size:14px}
  .hero-actions .btn{flex:1 1 100%}
  .live-value{font-size:22px}
  .zig-body h3{font-size:19px}
}

/* roulang page: category3 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06), 0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 4px rgba(20,40,35,.08), 0 16px 34px -14px rgba(20,40,35,.24);
  --container:1200px;
  --sp-section:96px;
  --font-zh:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-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-zh);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease-out}
a:visited{color:var(--brand-500)}
a:hover{color:var(--brand-700)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-500);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.25;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--paper)}
.section--card{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.anchor-offset{scroll-margin-top:96px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:1.5;letter-spacing:.08em;font-weight:600;
  color:var(--brand-700);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-700);display:inline-block}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-top:14px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--center .eyebrow{justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#fff;border:1px solid var(--brand-700)}
.btn-primary:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand-700);border:1px solid var(--brand-500)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-2px)}
.btn-accent{background:transparent;color:var(--accent-600);border:1px solid var(--accent-600)}
.btn-accent:hover{background:var(--accent-100);color:var(--accent-600);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-900);border:1px solid #fff}
.btn-light:hover{background:var(--brand-050);color:var(--brand-900);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(20,40,35,.35);border-bottom-color:#D8D3C7}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:20px;font-weight:700;color:var(--brand-700);letter-spacing:-.01em;
}
.brand span{font-size:12px;font-weight:600;color:var(--brand-500);letter-spacing:.06em}
.brand:hover{color:var(--brand-700)}
.header-divider{width:1px;height:24px;background:var(--line)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:4px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand-700);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{position:relative;width:260px}
.command-search .search-field{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search.is-open .search-field,.command-search .search-field:focus-within{
  border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.search-field svg{flex:none;color:var(--ink-2)}
.search-field input{flex:1;min-width:0;border:none;outline:none;background:transparent;font-size:14px}
.search-field input::placeholder{color:#96A09A}
.kbd{
  flex:none;font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line);
  border-radius:6px;color:var(--ink-2);background:var(--paper);font-variant-numeric:tabular-nums;
}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-2);
  padding:10px;display:none;
}
.command-search.is-open .search-panel{display:block}
.search-panel h5{margin:6px 8px 8px;font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:600}
.search-panel a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink);
}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700)}
.search-panel a span{font-size:12px;color:var(--ink-2)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;color:var(--brand-700);position:relative;transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px)}
.icon-btn .tip{
  position:absolute;top:calc(100% + 8px);right:0;white-space:nowrap;font-size:12px;
  background:var(--brand-900);color:#fff;padding:6px 10px;border-radius:8px;
  opacity:0;pointer-events:none;transition:opacity .18s ease-out;
}
.icon-btn:hover .tip,.icon-btn:focus-visible .tip{opacity:1}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--brand-700)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,36,.45);opacity:0;pointer-events:none;
  transition:opacity .2s ease-out;z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:var(--paper);
  z-index:80;transform:translateX(100%);transition:transform .24s ease-out;
  overflow-y:auto;padding:20px 22px 40px;display:flex;flex-direction:column;gap:18px;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:38px;height:38px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--brand-700)}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer nav a:hover{background:var(--brand-050);color:var(--brand-700)}
.drawer nav a.is-active{color:var(--brand-700);font-weight:600;background:var(--brand-050)}
.drawer .drawer-search input{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);background:#fff;
}
.drawer .drawer-note{font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- hero ---------- */
.cat-hero{padding:56px 0 0}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cat-hero h1{margin-bottom:18px}
.cat-hero h1 em{font-style:normal;color:var(--brand-700)}
.cat-hero .lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:60ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:500;
}
.tag--accent{background:var(--accent-100);color:var(--accent-600)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1);
}
.hero-stamp{
  position:absolute;left:-14px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-1);min-width:150px;
}
.hero-stamp strong{display:block;font-size:22px;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stamp small{font-size:12px;color:var(--ink-2)}

/* live bar */
.live-bar{margin-top:48px;background:var(--brand-900);border-radius:var(--radius-card);padding:20px 24px;display:flex;flex-wrap:wrap;gap:18px 34px;align-items:center;color:#DDE7E2}
.live-bar .live-title{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:#A9C3B8}
.pulse{width:8px;height:8px;border-radius:50%;background:#57C79A;box-shadow:0 0 0 0 rgba(87,199,154,.6);animation:pulse 2.4s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(87,199,154,.55)}
  70%{box-shadow:0 0 0 10px rgba(87,199,154,0)}
  100%{box-shadow:0 0 0 0 rgba(87,199,154,0)}
}
.live-item{font-size:14px;color:#EAF2EE}
.live-item b{font-size:19px;color:#fff;font-variant-numeric:tabular-nums;margin-right:6px}

/* ---------- metric strip ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;position:relative;transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.metric b{display:block;font-size:clamp(28px,3vw,38px);line-height:1.15;color:var(--brand-700);font-variant-numeric:tabular-nums;font-weight:700}
.metric b i{font-style:normal;font-size:16px;color:var(--accent-600);margin-left:4px;font-weight:600}
.metric h3{font-size:16px;margin:10px 0 6px}
.metric p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0}

/* ---------- timeline ---------- */
.timeline-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.timeline-aside{position:sticky;top:104px}
.timeline-aside img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);margin-top:24px}
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand-500),rgba(227,223,214,.4));
}
.tl-item{position:relative;padding-left:56px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:6px;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-500);
}
.tl-dot::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--brand-500)}
.tl-item.is-current .tl-dot{border-color:var(--accent-600)}
.tl-item.is-current .tl-dot::after{background:var(--accent-600)}
.tl-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:8px}
.tl-step{font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-variant-numeric:tabular-nums}
.tl-item h3{font-size:18px}
.tl-item p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tl-tags .tag{height:26px;font-size:12px}

/* ---------- case cards ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8D3C7}
.case-media{overflow:hidden;background:var(--brand-050)}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.case-card:hover .case-media img{transform:scale(1.02)}
.case-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-body h3{font-size:18px;line-height:1.5}
.case-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0}
.case-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.case-foot span{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.case-foot a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.case-foot a::after{content:"→";transition:transform .18s ease-out}
.case-foot a:hover::after{transform:translateX(3px)}

/* ---------- board table ---------- */
.board{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.board-scroll{overflow-x:auto}
.board table{width:100%;border-collapse:collapse;min-width:720px}
.board th,.board td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.board thead th{background:var(--brand-050);color:var(--brand-700);font-weight:600;font-size:13.5px;letter-spacing:.02em;white-space:nowrap}
.board tbody tr:last-child td{border-bottom:none}
.board tbody tr{transition:background-color .18s ease-out}
.board tbody tr:hover{background:#FBFAF7}
.board td .stage{display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums}
.board td .stage i{width:7px;height:7px;border-radius:50%;background:var(--brand-500);font-style:normal}
.board td .stage.warn i{background:var(--accent-600)}
.board td .stage.done i{background:#7A9189}
.progress{display:flex;align-items:center;gap:10px;min-width:150px}
.progress .bar{flex:1;height:6px;border-radius:999px;background:var(--brand-050);overflow:hidden}
.progress .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--brand-700))}
.progress b{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;font-weight:600}
.board-note{padding:14px 20px;background:#FBFAF7;border-top:1px solid var(--line);font-size:13px;color:var(--ink-2)}

/* ---------- numbered list ---------- */
.rank-list{border-top:1px solid var(--line)}
.rank-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:24px;align-items:center;
  padding:24px 8px;border-bottom:1px solid var(--line);transition:background-color .18s ease-out;
}
.rank-item:hover{background:#FBFAF7}
.rank-no{
  font-size:34px;font-weight:700;line-height:1;color:var(--brand-050);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.rank-item:hover .rank-no{color:var(--brand-500)}
.rank-body h3{font-size:17px;margin-bottom:6px}
.rank-body p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.8}
.rank-tag{font-size:13px;color:var(--accent-600);font-weight:600;white-space:nowrap}

/* ---------- faq ---------- */
.faq{max-width:800px;margin:0 auto;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;
  min-height:76px;padding:16px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand-500)}
.faq-sign{position:relative;flex:none;width:20px;height:20px}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-sign::before{left:0;top:9px;width:20px;height:2px}
.faq-sign::after{top:0;left:9px;width:2px;height:20px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-a{display:none;padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:22ch}
.cta-band p{color:#B9CCC4;font-size:15px;margin:12px 0 0;max-width:52ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#D6E2DC;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}
.footer-logo{font-size:20px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-logo span{font-size:12px;font-weight:600;color:#8FB3A5;letter-spacing:.06em}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9C3B8;margin:0;max-width:34ch}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:#A9C3B8}
.footer-col a{color:#D6E2DC;font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FB3A5;
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:55;
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 22px;border-radius:999px;
  background:var(--brand-900);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 30px -10px rgba(15,42,36,.55);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .22s ease-out,transform .22s ease-out,background-color .18s ease-out;
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-cta:hover{background:var(--brand-700);color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .main-nav,.command-search,.header-tools .icon-btn,.header-tools .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  .header-tools{gap:10px}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{order:-1}
  .hero-stamp{left:12px;bottom:12px}
  .timeline-wrap{grid-template-columns:1fr;gap:36px}
  .timeline-aside{position:static}
  .timeline-aside img{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:2fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .container{padding:0 20px}
  .cat-hero{padding-top:36px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .live-bar{gap:12px 22px;padding:16px 18px}
  .metrics{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .rank-item{grid-template-columns:60px 1fr;gap:16px;align-items:start}
  .rank-no{font-size:26px}
  .rank-tag{grid-column:2;justify-self:start}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;width:100%;
  }
  body{padding-bottom:72px}
  .faq-q{font-size:16px}
}
@media (max-width:519px){
  .brand{font-size:18px}
  .metric{padding:20px 18px}
  .board th,.board td{padding:14px 16px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06), 0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 4px rgba(20,40,35,.08), 0 16px 36px -14px rgba(20,40,35,.24);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.6,.3,1);
}
*{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(--ink);
  background:var(--paper);
  padding-bottom:0;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-700);}
a:visited{color:var(--brand-500);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  line-height:1.5;
  letter-spacing:.08em;
  color:var(--brand-700);
  background:var(--brand-050);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:18px;
  font-weight:600;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.35;
  position:relative;
  padding-left:18px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:4px;height:.86em;
  background:var(--brand-700);
  border-radius:2px;
}
.section-head .sub{
  margin-top:14px;
  font-size:15px;
  line-height:1.7;
  color:var(--ink-2);
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,245,240,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{
  border-color:#D6D1C5;
  box-shadow:0 6px 20px -14px rgba(20,40,35,.4);
}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--brand-700);
  flex:0 0 auto;
}
.brand span{
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--brand-500);
  align-self:flex-end;
  margin-left:1px;
  margin-bottom:3px;
}
.brand:hover{color:var(--brand-900);}
.brand-divider{
  width:1px;height:22px;background:var(--line);margin:0 4px;flex:0 0 auto;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
  border-bottom:2px solid transparent;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand-500);}
.nav-link.is-active{
  color:var(--brand-700);
  font-weight:600;
  border-bottom-color:var(--brand-700);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.search-box{position:relative;}
.search-input{
  width:260px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 60px 0 38px;
  font-size:14px;
  color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-input::placeholder{color:#99A19C;}
.search-input:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.search-icon{
  position:absolute;
  left:12px;top:50%;
  transform:translateY(-50%);
  width:18px;height:18px;
  color:var(--ink-2);
  pointer-events:none;
}
.kbd{
  position:absolute;
  right:10px;top:50%;
  transform:translateY(-50%);
  font-size:11px;
  letter-spacing:.04em;
  color:var(--ink-2);
  background:var(--brand-050);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  pointer-events:none;
}
.search-panel{
  position:absolute;
  top:48px;left:0;
  width:320px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  padding:14px;
  display:none;
}
.search-box.is-open .search-panel{display:block;}
.search-panel h5{
  margin:0 0 10px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-2);
  font-weight:600;
}
.search-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:8px 10px;
  border-radius:8px;
  font-size:14px;
  color:var(--ink);
}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700);}
.search-panel a em{
  font-style:normal;
  font-size:12px;
  color:var(--ink-2);
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--brand-700);
  cursor:pointer;
  position:relative;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.icon-btn:hover{
  border-color:var(--brand-500);
  color:var(--brand-500);
  transform:translateY(-1px);
  box-shadow:var(--shadow-1);
}
.icon-btn svg{width:20px;height:20px;}
.icon-btn::after{
  content:attr(data-tip);
  position:absolute;
  bottom:-34px;left:50%;
  transform:translateX(-50%);
  background:var(--brand-900);
  color:#fff;
  font-size:12px;
  line-height:1;
  padding:7px 9px;
  border-radius:6px;
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .16s var(--ease);
}
.icon-btn:hover::after{opacity:1;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-primary:active{background:var(--brand-900);transform:translateY(0);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500);background:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:var(--brand-050);color:var(--brand-900);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-toggle{display:none;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,42,36,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(88vw,380px);
  height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .24s var(--ease);
  z-index:95;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding:20px 20px 40px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.drawer-close{
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--brand-700);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.drawer .search-input{width:100%;}
.drawer-nav{display:flex;flex-direction:column;margin:22px 0 8px;}
.drawer-nav a{
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  padding:14px 2px;
  border-bottom:1px solid var(--line);
  min-height:44px;
  display:flex;
  align-items:center;
}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700;}
.drawer-contact{
  margin-top:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:18px;
  box-shadow:var(--shadow-1);
}
.drawer-contact h5{
  margin:0 0 10px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand-700);
}
.drawer-contact p{font-size:14px;color:var(--ink-2);margin:0 0 8px;line-height:1.7;}
.drawer .btn{width:100%;margin-top:18px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  background:var(--brand-900) url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(15,42,36,.94) 0%,rgba(15,42,36,.86) 46%,rgba(20,81,63,.72) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
  padding:84px 0 88px;
}
.hero-copy .eyebrow{
  background:rgba(255,255,255,.12);
  color:#E8F0EC;
}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.25;
  letter-spacing:-.02em;
  color:#fff;
}
.hero-copy .lead{
  margin-top:20px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.8);
  max-width:36em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:38px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-facts li{
  padding-left:20px;
  position:relative;
}
.hero-facts li::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:2px;height:30px;
  background:rgba(255,255,255,.22);
}
.hero-facts li:first-child{padding-left:0;}
.hero-facts li:first-child::before{display:none;}
.hero-facts strong{
  display:block;
  font-size:24px;
  line-height:1.3;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.hero-facts span{
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.hero-media{
  position:relative;
}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.16);
}
.hero-stamp{
  position:absolute;
  left:-14px;
  bottom:-14px;
  width:96px;
  height:96px;
  border-radius:var(--radius-card);
  background:#fff;
  color:var(--brand-900);
  box-shadow:var(--shadow-2);
  padding:14px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.hero-stamp strong{
  font-size:22px;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-stamp span{
  font-size:12px;
  color:var(--ink-2);
  line-height:1.4;
  margin-top:4px;
}

/* ---------- metrics ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:-46px;
  position:relative;
  z-index:2;
}
.metric{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
}
.metric strong{
  display:block;
  font-size:28px;
  line-height:1.25;
  color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
.metric span{
  display:block;
  margin-top:6px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
}
.metric p{
  margin:6px 0 0;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
}

/* ---------- compare table ---------- */
.table-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
}
table.compare{
  width:100%;
  border-collapse:collapse;
  min-width:720px;
}
table.compare th,
table.compare td{
  text-align:left;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  line-height:1.75;
  vertical-align:top;
}
table.compare thead th{
  background:var(--brand-050);
  color:var(--brand-700);
  font-size:13px;
  letter-spacing:.06em;
  font-weight:700;
  white-space:nowrap;
}
table.compare tbody th{
  font-weight:600;
  color:var(--ink);
  width:22%;
}
table.compare tbody td{color:var(--ink-2);}
table.compare tbody td strong{color:var(--ink);font-weight:600;}
table.compare tbody tr:last-child th,
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover td,
table.compare tbody tr:hover th{background:#FBF9F5;}
.table-note{
  margin-top:16px;
  font-size:14px;
  color:var(--ink-2);
}

/* ---------- numbered points ---------- */
.point-list{
  display:flex;
  flex-direction:column;
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.point{
  display:grid;
  grid-template-columns:88px 1fr auto;
  gap:24px;
  align-items:center;
  padding:26px 28px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s var(--ease);
}
.point:last-child{border-bottom:none;}
.point:hover{background:#FBF9F5;}
.point .idx{
  font-size:34px;
  line-height:1;
  font-weight:700;
  color:var(--brand-050);
  -webkit-text-stroke:0;
  font-variant-numeric:tabular-nums;
}
.point:hover .idx{color:var(--brand-050);}
.point h3{
  font-size:19px;
  line-height:1.5;
  margin-bottom:6px;
}
.point p{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-2);
}
.point .tag{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent-600);
  background:var(--accent-100);
  border-radius:999px;
  padding:5px 12px;
  white-space:nowrap;
  font-weight:600;
}

/* ---------- briefs ---------- */
.brief-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.brief{
  display:grid;
  grid-template-columns:200px 1fr;
  gap:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:18px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.brief:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.brief-img{
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--brand-050);
}
.brief-img img{
  width:100%;
  height:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.brief:hover .brief-img img{transform:scale(1.02);}
.brief-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:8px;
}
.brief:hover .brief-body h3{color:var(--brand-500);}
.brief-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
  margin-bottom:14px;
}
.brief-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.brief-meta .badge{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--brand-700);
  background:var(--brand-050);
  border-radius:999px;
  padding:4px 11px;
  font-weight:600;
}
.brief-meta .dot{width:1px;height:12px;background:var(--line);}

/* ---------- faq ---------- */
.faq-wrap{max-width:800px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  min-height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:none;
  border:none;
  padding:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand-500);}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a p{
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  padding:0 0 26px;
  margin:0;
  max-width:64em;
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-900);
  color:#fff;
  padding:72px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-inner h2{
  color:#fff;
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  margin-bottom:12px;
}
.cta-inner p{
  color:rgba(255,255,255,.76);
  font-size:15px;
  line-height:1.8;
  max-width:46em;
  margin:0;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  flex:0 0 auto;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding:72px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:40px;
}
.footer-logo{
  font-size:20px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-logo span{
  font-size:12px;
  font-weight:700;
  color:#9FC7B6;
  margin-left:1px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.7);
  margin:0;
  max-width:30em;
}
.footer-col h4{
  color:#fff;
  font-size:14px;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-col ul li{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.7);
}
.footer-col ul li a{
  color:rgba(255,255,255,.78);
  border-bottom:1px solid transparent;
}
.footer-col ul li a:hover{
  color:#fff;
  border-bottom-color:rgba(255,255,255,.6);
}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:52px;
  padding:0 22px;
  border-radius:999px;
  background:var(--brand-900);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background-color .18s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--brand-500);color:#fff;}
.float-cta svg{width:18px;height:18px;}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .search-input{width:210px;}
  .main-nav{gap:20px;}
  .nav-link{font-size:14px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:12px;}
  .brand-divider{display:none;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .hero-grid{
    grid-template-columns:1fr;
    gap:36px;
    padding:64px 0 72px;
  }
  .hero-media{max-width:560px;}
  .metrics{grid-template-columns:repeat(3,1fr);margin-top:-40px;}
  .brief-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:2fr 1fr 2fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container{padding:0 24px;}
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .metrics{grid-template-columns:1fr;margin-top:0;padding-top:32px;}
  .hero-grid{padding:48px 0 56px;}
  .hero-facts{gap:18px;}
  .hero-facts li{flex:1 1 40%;}
  .point{
    grid-template-columns:56px 1fr;
    gap:14px;
    padding:22px 18px;
  }
  .point .idx{font-size:26px;}
  .point .tag{grid-column:2;justify-self:start;}
  .brief{grid-template-columns:1fr;gap:16px;}
  .brief-img img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1/-1;}
  .cta-band{padding:56px 0;}
  .float-cta{
    right:0;left:0;bottom:0;
    height:56px;
    border-radius:0;
    justify-content:center;
    transform:translateY(0);
  }
  .float-cta.is-visible{transform:translateY(0);}
  body{padding-bottom:72px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .container{padding:0 20px;}
  .hero-copy h1{font-size:28px;}
  .hero-copy .lead{font-size:15.5px;}
  .hero-stamp{width:82px;height:82px;padding:12px;}
  .hero-stamp strong{font-size:18px;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  table.compare th,
  table.compare td{padding:14px 16px;}
}

/* roulang page: category5 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#14513F;
  --brand-500:#1E7A5E;
  --brand-050:#E8F0EC;
  --accent-600:#B4622C;
  --accent-100:#F6E7DC;
  --ink:#1B211E;
  --ink-2:#5C6660;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,40,35,.06),0 8px 24px -12px rgba(20,40,35,.16);
  --shadow-2:0 2px 4px rgba(20,40,35,.08),0 16px 36px -14px rgba(20,40,35,.22);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-700)}
a:visited{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-050);color:var(--brand-900)}

.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:14px;position:relative;padding-left:14px;
}
.eyebrow::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;background:var(--accent-600);border-radius:50%}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;color:var(--brand-900)}
.section-head p{margin-top:14px;font-size:15px;color:var(--ink-2);max-width:640px}
.lead{font-size:17px;color:var(--ink-2);line-height:1.85}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-500);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:visited{color:#fff}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand-900)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-050)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn .spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-050);color:var(--brand-700);
}
.badge--accent{background:var(--accent-100);color:var(--accent-600)}
.badge--light{background:rgba(255,255,255,.14);color:#fff}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--brand-500);position:relative}
.dot-live::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:1px solid var(--brand-500);opacity:.6;animation:pulse 2.2s ease-out infinite;
}
@keyframes pulse{
  0%{transform:scale(.7);opacity:.7}
  70%{transform:scale(1.5);opacity:0}
  100%{transform:scale(1.5);opacity:0}
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{border-color:#D8D2C6;box-shadow:0 6px 20px -14px rgba(20,40,35,.35)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.logo{
  display:inline-flex;align-items:baseline;flex:none;
  font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900);
}
.logo span{font-size:12.5px;font-weight:700;color:var(--brand-500);margin-left:1px;letter-spacing:0}
.logo:hover{color:var(--brand-900)}
.logo-divider{width:1px;height:22px;background:var(--line);flex:none}
.main-nav{display:flex;align-items:center;gap:26px;flex:1;min-width:0}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;transition:color .18s ease-out;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-700);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:none}
.search-box{position:relative;width:240px;flex:none}
.search-box input{
  width:100%;height:40px;padding:0 46px 0 38px;
  border:1px solid var(--line);border-radius:var(--radius-input);
  background:#fff;font-size:14px;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box input::placeholder{color:#9AA39D}
.search-box input:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--ink-2);pointer-events:none}
.search-kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:11px;font-weight:600;color:var(--ink-2);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:var(--paper);
  font-variant-numeric:tabular-nums;
}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;width:320px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:14px;display:none;
}
.search-panel.is-open{display:block}
.search-panel h4{font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:700;margin-bottom:10px}
.search-panel a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink);
  transition:background-color .16s ease-out,color .16s ease-out;
}
.search-panel a:hover{background:var(--brand-050);color:var(--brand-700)}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-input);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
  background:#fff;position:relative;transition:border-color .18s ease-out,background-color .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand-500);background:var(--brand-050)}
.icon-btn .tip{
  position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--brand-900);color:#fff;font-size:12px;line-height:1;padding:8px 10px;border-radius:8px;
  white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s ease-out;
}
.icon-btn:hover .tip{opacity:1}
.menu-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-input);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--brand-700)}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease-out}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,36,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,380px);z-index:90;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .24s ease-out;
  overflow-y:auto;padding:22px 22px 40px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-input);background:#fff;color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:#fff;border-color:var(--line);color:var(--brand-700)}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700);font-weight:600}
.drawer-block{margin-bottom:22px}
.drawer-block h4{font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-weight:700;margin-bottom:10px}
.drawer-block p{font-size:14px;color:var(--ink-2);margin-bottom:6px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--brand-900);
  color:#fff;padding:72px 0 0;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.20;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding-bottom:56px}
.hero .eyebrow{color:#8FD3BC}
.hero .eyebrow::before{background:var(--accent-600)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.25;letter-spacing:-.02em;color:#fff;
  margin-bottom:18px;
}
.hero .sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid rgba(255,255,255,.16);padding-top:24px}
.metric{padding-right:28px;margin-right:28px;border-right:1px solid rgba(255,255,255,.16)}
.metric:last-child{border-right:0;margin-right:0;padding-right:0}
.metric strong{display:block;font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:#fff}
.metric span{font-size:13px;color:rgba(255,255,255,.66)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;border:1px solid rgba(255,255,255,.14);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;color:var(--ink);
  border-radius:var(--radius-card);padding:16px 18px;box-shadow:var(--shadow-2);
  max-width:230px;
}
.hero-float strong{display:block;font-size:15px;color:var(--brand-900)}
.hero-float span{font-size:13px;color:var(--ink-2);line-height:1.6}
.status-strip{
  position:relative;background:rgba(255,255,255,.06);
  border-top:1px solid rgba(255,255,255,.14);
}
.status-inner{display:flex;flex-wrap:wrap;align-items:center;gap:28px;padding:16px 0;font-size:14px;color:rgba(255,255,255,.82)}
.status-item{display:inline-flex;align-items:center;gap:9px}
.status-item b{font-weight:600;color:#fff;font-variant-numeric:tabular-nums}

/* ---------- 支持通道卡片 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.support-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  display:flex;flex-direction:column;
}
.support-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5D0C4}
.support-card .ico{
  width:42px;height:42px;border-radius:10px;background:var(--brand-050);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.support-card h3{font-size:18px;color:var(--brand-900);margin-bottom:10px}
.support-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.support-card .meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-2);display:flex;justify-content:space-between;gap:10px}
.support-card .meta b{color:var(--brand-700);font-variant-numeric:tabular-nums}

/* ---------- 响应流程 ---------- */
.flow{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.flow-visual{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.flow-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.steps{display:flex;flex-direction:column}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.step:first-child{padding-top:0}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-num{
  width:52px;height:52px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;color:var(--brand-900);margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-2);margin:0}
.step .tagline{display:inline-block;margin-top:10px;font-size:12.5px;color:var(--accent-600);font-weight:600}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start}
.faq-group{margin-bottom:44px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  display:flex;align-items:center;gap:12px;font-size:16px;color:var(--brand-900);
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:4px;
}
.faq-group-num{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent-600);
  font-variant-numeric:tabular-nums;
}
.faq-list{border-bottom:1px solid var(--line)}
.faq-list:last-child{border-bottom:0}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:76px;padding:18px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--brand-900);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand-500)}
.faq-q[aria-expanded="true"]{color:var(--brand-700)}
.faq-toggle{position:relative;width:20px;height:20px;flex:none}
.faq-toggle::before,.faq-toggle::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-toggle::before{left:2px;right:2px;top:9px;height:2px}
.faq-toggle::after{top:2px;bottom:2px;left:9px;width:2px}
.faq-q[aria-expanded="true"] .faq-toggle::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out}
.faq-a p{padding:0 46px 22px 0;font-size:15px;line-height:1.8;color:var(--ink-2);margin:0}
.faq-aside{
  position:sticky;top:96px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);
}
.faq-aside h3{font-size:17px;color:var(--brand-900);margin-bottom:12px}
.faq-aside p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:18px}
.aside-list{margin-bottom:22px}
.aside-list li{
  display:flex;gap:10px;font-size:14px;color:var(--ink-2);padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.aside-list li:last-child{border-bottom:0}
.aside-list svg{flex:none;margin-top:4px;color:var(--brand-500)}

/* ---------- 表单 ---------- */
.form-band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.form-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.form-intro h2{font-size:clamp(24px,2.6vw,34px);color:var(--brand-900);line-height:1.35;margin-bottom:16px}
.form-intro p{font-size:15px;color:var(--ink-2)}
.form-points{margin-top:26px}
.form-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:7px 0}
.form-points svg{flex:none;margin-top:5px;color:var(--brand-500)}
.intent-form{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 26px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:7px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:13.5px;font-weight:600;color:var(--brand-900)}
.req{color:var(--accent-600);margin-left:2px}
.form-field input,.form-field select,.form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  background:#fff;font-size:14.5px;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-field input,.form-field select{height:44px;padding:0 14px}
.form-field textarea{padding:12px 14px;min-height:118px;resize:vertical;line-height:1.75}
.form-field input::placeholder,.form-field textarea::placeholder{color:#9AA39D}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,94,.14);
}
.form-field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235C6660' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-field.has-error input,.form-field.has-error select,.form-field.has-error textarea{border-color:var(--accent-600);box-shadow:0 0 0 4px rgba(180,98,44,.12)}
.field-error{font-size:12px;color:var(--accent-600);margin:0;font-weight:600}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-note{font-size:13px;color:var(--ink-2);margin:0}
.form-success{
  background:var(--brand-050);border:1px solid #CFE1D8;border-radius:var(--radius-card);
  padding:34px 28px;text-align:center;
}
.form-success .ok{
  width:52px;height:52px;border-radius:50%;background:var(--brand-700);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.form-success h3{font-size:19px;color:var(--brand-900);margin-bottom:10px}
.form-success p{font-size:14.5px;color:var(--ink-2);max-width:420px;margin:0 auto 18px}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);color:#fff;line-height:1.4;margin-bottom:10px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.72);margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.74);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-logo{display:inline-flex;align-items:baseline;font-size:20px;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:14px}
.footer-logo span{font-size:12.5px;font-weight:700;color:#8FD3BC;margin-left:1px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li,.footer-col a{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 22px;border-radius:999px;
  background:var(--brand-900);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s ease-out,background-color .18s ease-out;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--brand-700);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .main-nav{gap:18px}
  .nav-link{font-size:14px}
  .search-box{width:180px}
  .hero-inner{gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .main-nav{display:none}
  .search-box{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:64px}
  .hero{padding-top:52px}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding-bottom:44px}
  .hero-figure{max-width:560px}
  .hero-float{left:0;bottom:-18px}
  .support-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .form-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:2fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .hero .sub{font-size:16px}
  .hero-metrics{gap:20px 0}
  .metric{padding-right:20px;margin-right:20px}
  .metric strong{font-size:22px}
  .support-grid{grid-template-columns:1fr}
  .faq-q{font-size:15px;min-height:64px}
  .faq-a p{padding-right:20px}
  .form-grid{grid-template-columns:1fr}
  .intent-form{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:56px 0}
  body{padding-bottom:72px}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    transform:translateY(100%);box-shadow:0 -6px 20px -12px rgba(20,40,35,.4);
  }
  .float-cta.is-visible{transform:translateY(0)}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .hero-cta .btn{width:100%}
  .status-inner{gap:14px;font-size:13px}
  .step{grid-template-columns:44px 1fr;gap:14px}
  .step-num{width:44px;height:44px;font-size:15px;border-radius:10px}
}