/* roulang page: index */
:root{
  --brand:#0C3B2E;
  --brand-2:#157A5B;
  --lime:#C6F24E;
  --orange:#FF7A45;
  --bg:#F6F4EE;
  --bg-2:#EFEDE6;
  --dark:#0A1F1A;
  --ink:#10231C;
  --muted:#5B6B64;
  --weak:#8A9691;
  --light:#F2F7F0;
  --line:rgba(12,59,46,.12);
  --line-dark:rgba(255,255,255,.16);
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 2px 8px rgba(12,59,46,.06);
  --sh-2:0 16px 40px rgba(12,59,46,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media(min-width:1280px){.container{max-width:1280px;padding-left:32px;padding-right:32px}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- Header ---------- */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:80;
  height:68px;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 8px 28px rgba(0,0,0,.14);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  position:fixed;
  background:rgba(246,244,238,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-2);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--lime),var(--brand-2));
  display:grid;place-items:center;color:var(--brand);font-weight:800;font-size:15px;
  box-shadow:0 4px 12px rgba(198,242,78,.28);
}
.logo-text{font-weight:700;font-size:17px;letter-spacing:.2px;color:#fff;white-space:nowrap;transition:color var(--t)}
.site-header.is-stuck .logo-text{color:var(--ink)}
.nav-links{display:none;align-items:center;gap:6px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{
  padding:9px 14px;border-radius:999px;font-size:15px;color:rgba(255,255,255,.88);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{background:rgba(255,255,255,.14);color:#fff}
.site-header.is-stuck .nav-link{color:var(--ink)}
.site-header.is-stuck .nav-link:hover{background:rgba(12,59,46,.07);color:var(--brand)}
.nav-link.is-active{position:relative;color:#fff;font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--lime);
}
.site-header.is-stuck .nav-link.is-active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  color:#fff;border:1px solid rgba(255,255,255,.24);transition:background var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.site-header.is-stuck .icon-btn{color:var(--brand);border-color:rgba(12,59,46,.18)}
.site-header.is-stuck .icon-btn:hover{background:rgba(12,59,46,.07)}
.nav-search{position:relative;display:none}
@media(min-width:768px){.nav-search{display:block}}
.nav-search form{
  position:absolute;right:0;top:50%;transform:translateY(-50%) scale(.96);
  width:0;opacity:0;pointer-events:none;overflow:hidden;
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:0 14px;height:42px;
  box-shadow:var(--sh-2);transition:width var(--t),opacity var(--t),transform var(--t);
}
.nav-search.is-open form{width:250px;opacity:1;pointer-events:auto;transform:translateY(-50%) scale(1)}
.nav-search input{border:0;outline:none;width:100%;font-size:14px;color:var(--ink);background:transparent;height:40px}
.nav-search input::placeholder{color:var(--weak)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:14px 26px;font-weight:700;font-size:15px;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--brand);box-shadow:0 6px 18px rgba(198,242,78,.28)}
.btn-primary:hover{background:#b8e63f;transform:translateY(-1px);box-shadow:0 12px 26px rgba(198,242,78,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--brand);border:1px solid var(--brand-2)}
.btn-outline:hover{background:rgba(21,122,91,.08)}
.btn-ghost{background:transparent;color:#F2F7F0;border:1px solid rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{display:grid}
@media(min-width:1024px){.nav-toggle{display:none}}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;pointer-events:none;
}
.drawer-mask{position:absolute;inset:0;background:rgba(10,31,26,.44);opacity:0;transition:opacity var(--t)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;
  transform:translateX(100%);transition:transform 260ms var(--ease);
  padding:22px 22px calc(28px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(12,59,46,.16);
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-title{font-size:13px;color:var(--weak);letter-spacing:.14em;font-weight:600}
.drawer-close{width:38px;height:38px;border-radius:999px;display:grid;place-items:center;background:var(--bg-2);color:var(--brand)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:12px;background:var(--bg);font-weight:600;color:var(--ink);
  transition:background var(--t),color var(--t);
}
.drawer-link:hover{background:var(--bg-2)}
.drawer-link.is-active{background:rgba(21,122,91,.10);color:var(--brand)}
.drawer-link i{color:var(--weak);font-size:13px}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:78vh;display:flex;align-items:center;
  padding:136px 0 88px;color:var(--light);overflow:hidden;
  background-image:linear-gradient(115deg,rgba(10,31,26,.94) 0%,rgba(12,59,46,.80) 52%,rgba(10,31,26,.58) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-14%;bottom:-42%;width:76vw;height:76vw;max-width:900px;max-height:900px;
  background:radial-gradient(circle at 30% 30%,rgba(198,242,78,.10),transparent 62%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.04em;
  background:rgba(198,242,78,.14);border:1px solid rgba(198,242,78,.34);color:#DFF7A8;
}
.hero-badge .dot{width:7px;height:7px;border-radius:999px;background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.18)}
.hero h1{
  margin-top:22px;font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.16;letter-spacing:-.01em;
  max-width:16em;
}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(242,247,240,.84);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:44px;max-width:640px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-stat .val{font-size:26px;font-weight:800;color:var(--lime);line-height:1.3}
.hero-stat .lbl{font-size:13px;color:rgba(242,247,240,.72);margin-top:2px}
@media(max-width:767px){
  .hero{min-height:62vh;padding:112px 0 64px}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:34px}
  .hero-stat .val{font-size:20px}
  .hero-stat .lbl{font-size:12px}
}

/* ---------- Anchor bar ---------- */
.anchor-bar{
  position:sticky;top:66px;z-index:60;
  background:rgba(246,244,238,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
@media(min-width:1024px){.anchor-bar{top:68px}}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:#fff;transition:all var(--t);
}
.anchor-pill:hover{color:var(--brand);border-color:rgba(21,122,91,.4)}
.anchor-pill.is-current{background:var(--brand);color:#fff;border-color:var(--brand)}
.anchor-pill.is-current::before{content:"";display:inline-block;width:6px;height:6px;border-radius:999px;background:var(--lime);margin-right:8px;vertical-align:middle}

/* ---------- Sections ---------- */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:36px}
@media(min-width:1024px){.section-head{margin-bottom:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--brand-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--brand-2)}
.section-title{font-size:clamp(24px,3.4vw,36px);font-weight:700;line-height:1.28;margin-top:14px}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;max-width:38em}
.section-dark{background:var(--dark);color:var(--light);position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;opacity:.9;pointer-events:none;
}
.section-dark .section-title{color:var(--light)}
.section-dark .section-desc{color:rgba(242,247,240,.74)}
.section-dark .eyebrow{color:var(--lime)}
.section-dark .eyebrow::before{background:var(--lime)}
.section-alt{background:var(--bg-2)}

/* ---------- Value ---------- */
.value-row{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:1024px){.value-row{grid-template-columns:1.05fr .95fr;gap:56px}}
.value-row + .value-row{margin-top:56px}
@media(min-width:1024px){.value-row + .value-row{margin-top:80px}}
.value-row.reverse .value-media{order:-1}
@media(min-width:1024px){.value-row.reverse .value-copy{order:2}}
.value-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2)}
.value-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform 420ms var(--ease)}
.value-media:hover img{transform:scale(1.03)}
.value-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,31,26,0) 40%,rgba(10,31,26,.34));
  pointer-events:none;
}
.value-num{
  position:absolute;left:18px;top:18px;z-index:2;
  background:var(--dark);color:var(--lime);font-weight:800;font-size:15px;
  padding:6px 14px;border-radius:999px;letter-spacing:.06em;
}
.value-title{font-size:clamp(21px,2.4vw,26px);font-weight:700;line-height:1.4}
.value-text{margin-top:16px;color:var(--muted)}
.value-list{margin-top:22px;display:grid;gap:12px}
.value-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted)}
.value-list i{color:var(--brand-2);margin-top:5px}
.value-inline-cta{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-weight:600;color:var(--brand);border-bottom:1px dashed var(--brand-2);padding-bottom:2px;transition:all var(--t)}
.value-inline-cta:hover{border-bottom-style:solid;gap:12px;color:var(--brand-2)}

.data-strip{
  margin-top:56px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;
  background:var(--brand);border-radius:var(--r-card);padding:26px 22px;color:var(--light);
}
@media(min-width:768px){.data-strip{grid-template-columns:repeat(4,minmax(0,1fr));padding:30px 28px}}
.data-strip .item{border-left:2px solid rgba(198,242,78,.5);padding-left:14px}
.data-strip .val{font-size:26px;font-weight:800;color:var(--lime);line-height:1.2}
.data-strip .lbl{font-size:13px;color:rgba(242,247,240,.76);margin-top:6px;line-height:1.6}

/* ---------- Demo ---------- */
.demo-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:1024px){.demo-grid{grid-template-columns:.95fr 1.05fr;gap:60px}}
.demo-steps{display:grid;gap:18px}
.demo-step{
  display:flex;gap:16px;padding:18px 20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);
  transition:background var(--t),transform var(--t);
}
.demo-step:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.demo-step .idx{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--lime);color:var(--brand);font-weight:800;font-size:15px;
}
.demo-step h3{font-size:17px;font-weight:600;color:var(--light)}
.demo-step p{font-size:14px;color:rgba(242,247,240,.72);margin-top:6px;line-height:1.7}
.demo-canvas{
  position:relative;border-radius:20px;padding:14px;
  background:linear-gradient(150deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  border:1px solid var(--line-dark);box-shadow:0 30px 70px rgba(0,0,0,.36);
}
.demo-canvas img{border-radius:var(--r-img);width:100%;aspect-ratio:16/10;object-fit:cover}
.demo-canvas .tag-float{
  position:absolute;left:28px;bottom:28px;
  background:rgba(10,31,26,.86);border:1px solid rgba(198,242,78,.4);color:var(--lime);
  font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;backdrop-filter:blur(6px);
}

/* ---------- News (CMS) ---------- */
.news-top{display:grid;grid-template-columns:1fr;gap:24px;margin-bottom:28px}
@media(min-width:1024px){.news-top{grid-template-columns:1.4fr 1fr;gap:32px}}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-cover{display:block;overflow:hidden;background:var(--bg-2)}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-badge{
  display:inline-block;font-size:13px;padding:4px 10px;border-radius:999px;
  background:rgba(21,122,91,.12);color:var(--brand);font-weight:600;width:fit-content;
}
.card-badge.orange{background:rgba(255,122,69,.14);color:#C0491A}
.card-badge.lime{background:rgba(198,242,78,.30);color:#3E4F14}
.news-title{font-size:18px;font-weight:600;line-height:1.5;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand-2)}
.news-excerpt{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--weak);
}
.news-foot .read{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap var(--t)}
.news-card:hover .news-foot .read{gap:10px}
.news-card.feature .news-cover img{aspect-ratio:16/10}
@media(min-width:1024px){.news-card.feature{flex-direction:row}
  .news-card.feature .news-cover{flex:0 0 46%;}
  .news-card.feature .news-cover img{height:100%;aspect-ratio:auto;min-height:280px}
  .news-card.feature .news-body{padding:30px 32px}
  .news-card.feature .news-title{font-size:24px;-webkit-line-clamp:3}
  .news-card.feature .news-excerpt{font-size:15px;-webkit-line-clamp:3}
}
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.empty-state{
  background:#fff;border:1px dashed rgba(12,59,46,.24);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:30px;color:var(--brand-2);opacity:.7}
.empty-state p{margin-top:14px;font-size:15px}
.empty-state .btn{margin-top:20px}

/* ---------- Proof ---------- */
.proof-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:44px}
@media(min-width:768px){.proof-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.proof-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.proof-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--r-card);
  padding:24px 22px;transition:background var(--t),transform var(--t);
}
.proof-card:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.proof-card .val{font-size:32px;font-weight:800;color:var(--lime);line-height:1.2}
.proof-card .lbl{font-size:14px;color:rgba(242,247,240,.76);margin-top:8px;line-height:1.7}
.quote-list{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:1024px){.quote-list{grid-template-columns:repeat(3,minmax(0,1fr))}}
.quote{
  border-left:2px solid var(--lime);padding:6px 0 6px 18px;
}
.quote p{font-size:15px;color:rgba(242,247,240,.86);line-height:1.8}
.quote span{display:block;margin-top:10px;font-size:13px;color:rgba(242,247,240,.56)}

/* ---------- Price ---------- */
.price-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.price-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.price-card.is-featured{border:2px solid var(--brand);box-shadow:var(--sh-2)}
.price-card .flag{
  position:absolute;top:-13px;left:26px;background:var(--lime);color:var(--brand);
  font-size:13px;font-weight:700;padding:4px 14px;border-radius:999px;
}
.price-name{font-size:18px;font-weight:700}
.price-desc{font-size:14px;color:var(--muted);margin-top:8px;min-height:44px}
.price-amount{
  margin:22px 0 6px;display:flex;align-items:baseline;gap:6px;
  background:var(--dark);border-radius:12px;padding:14px 18px;width:fit-content;
}
.price-amount .cur{font-size:15px;color:rgba(242,247,240,.72);font-weight:600}
.price-amount .num{font-size:36px;font-weight:800;color:var(--lime);line-height:1}
.price-amount .unit{font-size:13px;color:rgba(242,247,240,.62)}
.price-feats{margin:20px 0 26px;display:grid;gap:12px}
.price-feats li{display:flex;gap:10px;font-size:14px;color:var(--muted);padding-bottom:12px;border-bottom:1px solid var(--line)}
.price-feats li:last-child{border-bottom:0;padding-bottom:0}
.price-feats i{color:var(--brand-2);margin-top:5px;font-size:13px}
.price-card .btn{margin-top:auto;width:100%}
.price-note{margin-top:22px;font-size:13px;color:var(--weak);text-align:center}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.faq-layout{grid-template-columns:.75fr 1.25fr;gap:56px;align-items:start}}
.faq-side{position:static}
@media(min-width:1024px){.faq-side{position:sticky;top:120px}}
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color var(--t),box-shadow var(--t)}
.faq-item.is-open{border-color:rgba(21,122,91,.45);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;width:30px;height:30px;border-radius:999px;display:grid;place-items:center;
  background:var(--bg-2);color:var(--brand);transition:transform var(--t),background var(--t),color var(--t);
}
.faq-item.is-open .sign{transform:rotate(180deg);background:var(--brand);color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease)}
.faq-a-inner{padding:0 22px 22px;max-width:78%;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-item.is-open .faq-a{max-height:320px}
@media(max-width:767px){.faq-a-inner{max-width:100%}}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(115deg,rgba(10,31,26,.96),rgba(12,59,46,.88)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:var(--light);border-radius:20px;padding:48px 28px;text-align:center;
  position:relative;overflow:hidden;
}
@media(min-width:1024px){.cta-band{padding:68px 56px}}
.cta-band::after{
  content:"";position:absolute;left:50%;top:-60%;width:70%;height:200%;
  background:radial-gradient(circle,rgba(198,242,78,.12),transparent 62%);transform:translateX(-50%);pointer-events:none;
}
.cta-band h2{font-size:clamp(23px,3vw,32px);font-weight:700;line-height:1.34;position:relative;z-index:2}
.cta-band p{margin-top:14px;color:rgba(242,247,240,.78);font-size:16px;position:relative;z-index:2}
.cta-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;position:relative;z-index:2}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(242,247,240,.72);position:relative;overflow:hidden;padding:64px 0 30px;margin-top:0}
.site-footer::before{
  content:"";position:absolute;left:-10%;top:-140px;width:120%;height:280px;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(198,242,78,.10),transparent 66%);pointer-events:none;
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.8fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo-text{color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(242,247,240,.62);max-width:34em}
.footer-record{margin-top:14px;font-size:13px;color:rgba(242,247,240,.44)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:14px;color:rgba(242,247,240,.72);transition:color var(--t)}
.footer-col a:hover{color:var(--lime)}
.footer-col .plain{font-size:14px;color:rgba(242,247,240,.72)}
.footer-bottom{
  position:relative;z-index:2;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(242,247,240,.5);
}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:none;align-items:center;gap:16px;
  background:var(--brand);color:var(--light);
  padding:10px 10px 10px 20px;border-radius:999px;
  box-shadow:0 18px 44px rgba(12,59,46,.34);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity 260ms var(--ease),transform 260ms var(--ease);
}
@media(min-width:768px){.float-cta{display:flex}}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta .tip{font-size:13px;color:rgba(242,247,240,.8);white-space:nowrap}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(10,31,26,.96);backdrop-filter:blur(10px);
  transform:translateY(120%);transition:transform 260ms var(--ease);
}
.mobile-bar.is-visible{transform:translateY(0)}
.mobile-bar .tip{font-size:13px;color:rgba(242,247,240,.78)}
.mobile-bar .btn{padding:9px 16px;font-size:14px}
@media(min-width:768px){.mobile-bar{display:none}}
@media(max-width:767px){body{padding-bottom:56px}}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
  --ink:#0C3B2E;
  --brand:#157A5B;
  --lime:#C6F24E;
  --orange:#FF7A45;
  --bg:#F6F4EE;
  --bg2:#EFEDE6;
  --dark:#0A1F1A;
  --text:#10231C;
  --muted:#5B6B64;
  --weak:#8A9691;
  --line:rgba(12,59,46,.12);
  --line-dark:rgba(255,255,255,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --sh1:0 2px 8px rgba(12,59,46,.06);
  --sh2:0 16px 40px rgba(12,59,46,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}

/* ============ 顶部导航 ============ */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;
  height:68px;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 10px 30px rgba(4,20,15,.22);
  transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.scrolled{
  position:fixed;
  background:rgba(246,244,238,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh2);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:-.02em;
  box-shadow:0 4px 14px rgba(198,242,78,.28);
}
.logo-text{color:#F2F7F0;font-size:17px;font-weight:700;letter-spacing:-.01em;transition:color .2s var(--ease)}
.site-header.scrolled .logo-text{color:var(--ink)}
.header-nav{display:none;align-items:center;gap:26px}
@media (min-width:1024px){.header-nav{display:flex}}
.header-nav a{
  position:relative;font-size:15px;font-weight:500;color:rgba(242,247,240,.88);
  padding:6px 0;transition:color .2s var(--ease);
}
.header-nav a:hover{color:var(--lime)}
.header-nav a.active{color:var(--lime)}
.header-nav a.active::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--lime);border-radius:2px;
}
.site-header.scrolled .header-nav a{color:var(--muted)}
.site-header.scrolled .header-nav a:hover,
.site-header.scrolled .header-nav a.active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  color:#F2F7F0;cursor:pointer;transition:all .2s var(--ease);
}
.icon-btn:hover{background:rgba(198,242,78,.18);border-color:rgba(198,242,78,.5)}
.site-header.scrolled .icon-btn{border-color:var(--line);background:rgba(12,59,46,.04);color:var(--ink)}
.menu-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#F2F7F0;cursor:pointer;
}
@media (min-width:1024px){.menu-btn{display:none}}
.site-header.scrolled .menu-btn{border-color:var(--line);background:rgba(12,59,46,.04);color:var(--ink)}

/* 按钮体系 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 22px rgba(198,242,78,.28)}
.btn-primary:hover{background:#b9e947;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--brand);color:var(--ink);background:transparent}
.btn-outline:hover{background:rgba(21,122,91,.08)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#F2F7F0;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.link-arrow{color:var(--brand);font-weight:600;border-bottom:1px dashed var(--brand);padding-bottom:2px;transition:all .2s var(--ease)}
.link-arrow:hover{border-bottom-style:solid;color:var(--ink)}

/* 锚点条 */
.anchor-bar{
  position:sticky;top:68px;z-index:50;
  background:rgba(246,244,238,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
@media (max-width:1023px){.anchor-bar{top:60px}}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--muted);background:#fff;border:1px solid var(--line);transition:all .2s var(--ease);
}
.anchor-pill:hover{color:var(--ink);border-color:var(--brand);box-shadow:var(--sh1)}

/* ============ 阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--lime);z-index:90;transition:width .1s linear}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;padding:140px 0 56px;color:#F2F7F0;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(8,32,25,.94),rgba(12,59,46,.78)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:'';position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16),transparent 62%);pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,247,240,.66);margin-bottom:22px}
.breadcrumb a{color:rgba(242,247,240,.82);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span.sep{color:rgba(242,247,240,.4)}
.breadcrumb .current{color:rgba(242,247,240,.6);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;background:rgba(21,122,91,.16);color:#BEE6D6}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-orange{background:rgba(255,122,69,.18);color:#FFD0BC}
.badge-outline{border:1px solid rgba(255,255,255,.3);color:rgba(242,247,240,.85);background:transparent}
.article-hero h1{
  font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;letter-spacing:-.01em;
  margin:0 0 20px;max-width:20em;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:rgba(242,247,240,.74)}
.article-meta b{color:#F2F7F0;font-weight:600}

/* 封面 + 要点 */
.cover-wrap{position:relative;margin-top:-34px;z-index:5}
.cover-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh2);border:1px solid rgba(255,255,255,.5)}
.section{padding:72px 0}
@media (max-width:767px){.section{padding:48px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:-.01em;margin:0 0 12px;position:relative;padding-left:16px}
.section-head h2::before{content:'';position:absolute;left:0;top:.24em;width:4px;height:1em;background:var(--lime);border-radius:2px}
.section-head p{margin:0;color:var(--muted);font-size:15.5px}
.value-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.value-grid{grid-template-columns:repeat(3,1fr)}}
.value-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.value-card .vnum{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--brand);margin-bottom:10px}
.value-card h3{font-size:18px;font-weight:700;margin:0 0 10px}
.value-card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ 正文布局 ============ */
.article-layout{display:grid;gap:32px;grid-template-columns:1fr;align-items:start}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 268px}}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh1)}
@media (min-width:768px){.article-card{padding:40px 44px}}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{font-size:clamp(21px,2.5vw,27px);font-weight:700;line-height:1.35;margin:2.1em 0 .8em;padding-left:14px;position:relative;color:var(--ink)}
.article-body h2::before{content:'';position:absolute;left:0;top:.3em;width:4px;height:.9em;background:var(--lime);border-radius:2px}
.article-body h3{font-size:19px;font-weight:600;margin:1.7em 0 .6em;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em}
.article-body li{margin:.45em 0}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--bg2);
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--muted);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;box-shadow:var(--sh1);height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px}
.article-body a{color:var(--brand);border-bottom:1px dashed var(--brand)}
.article-body a:hover{color:var(--ink);border-bottom-style:solid}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:var(--bg2);font-weight:700;color:var(--ink)}
.article-body tbody tr:nth-child(even){background:rgba(12,59,46,.03)}
.article-body pre{background:var(--dark);color:#E8F3EC;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--bg2);
}
.empty-state h3{margin:0 0 10px;font-size:20px;font-weight:700}
.empty-state p{margin:0 0 20px;color:var(--muted);font-size:15px}

/* 侧栏 */
.article-aside{display:flex;flex-direction:column;gap:18px}
@media (min-width:1024px){.article-aside{position:sticky;top:148px}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh1)}
.side-card h3{font-size:15px;font-weight:700;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);color:var(--ink)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-link{display:block;font-size:14px;color:var(--muted);padding:6px 10px;border-radius:8px;border-left:2px solid transparent;transition:all .2s var(--ease)}
.toc-link:hover{color:var(--ink);background:var(--bg2)}
.toc-link.active{color:var(--brand);font-weight:600;border-left-color:var(--lime);background:rgba(21,122,91,.07)}
.side-cta{background:var(--dark);border-radius:var(--r-card);padding:22px;color:#F2F7F0;border:1px solid var(--line-dark)}
.side-cta p{margin:0 0 16px;font-size:14.5px;line-height:1.75;color:rgba(242,247,240,.82)}
.side-cta strong{display:block;font-size:16px;margin-bottom:8px;color:#fff}

/* 标签与分享 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:32px 0 20px;padding-top:22px;border-top:1px solid var(--line)}
.tag{font-size:13px;padding:5px 12px;border-radius:999px;background:rgba(21,122,91,.09);color:var(--brand);font-weight:600}
.tag-orange{background:rgba(255,122,69,.12);color:#C24E20}
.share-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13.5px;color:var(--weak)}
.share-btn{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;transition:all .2s var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* 推荐卡 */
.post-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.post-cover{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-cover{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{margin:0;font-size:17px;font-weight:700;line-height:1.5}
.post-body p{margin:0;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--weak)}

/* 深色数据条 */
.proof-strip{
  background:var(--dark);border-radius:20px;padding:36px 26px;color:#F2F7F0;
  background-image:radial-gradient(circle at 85% 15%,rgba(198,242,78,.14),transparent 55%);
  border:1px solid var(--line-dark);
}
.proof-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:640px){.proof-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.proof-grid{grid-template-columns:repeat(4,1fr)}}
.proof-item{padding-left:16px;border-left:2px solid rgba(198,242,78,.5)}
.proof-item .pnum{font-size:clamp(26px,3.4vw,34px);font-weight:800;color:var(--lime);line-height:1.1;font-variant-numeric:tabular-nums}
.proof-item .plabel{font-size:14px;color:rgba(242,247,240,.75);margin-top:8px}

/* 方案卡 */
.plan-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.plan-grid{grid-template-columns:repeat(3,1fr)}}
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--sh1);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);position:relative;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.plan-card.featured{border:2px solid var(--brand);box-shadow:var(--sh2)}
.plan-flag{position:absolute;top:-12px;right:20px;background:var(--orange);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.plan-card h3{margin:0;font-size:19px;font-weight:700}
.plan-card .plan-desc{margin:0;font-size:14px;color:var(--muted);line-height:1.75}
.plan-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
.plan-list li{font-size:14.5px;color:var(--text);padding:11px 0;border-top:1px solid var(--line);display:flex;gap:9px;align-items:flex-start}
.plan-list li::before{content:'✓';color:var(--brand);font-weight:800;flex-shrink:0}

/* FAQ */
.faq-wrap{display:grid;gap:26px;grid-template-columns:1fr}
@media (min-width:1024px){.faq-wrap{grid-template-columns:320px minmax(0,1fr)}}
.faq-intro h2{font-size:clamp(22px,3vw,32px);font-weight:700;margin:0 0 12px;letter-spacing:-.01em}
.faq-intro p{margin:0 0 18px;color:var(--muted);font-size:15.5px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease)}
.faq-item.open{border-color:rgba(21,122,91,.45);box-shadow:var(--sh2)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);
  text-align:left;cursor:pointer;
}
.faq-icon{flex-shrink:0;width:26px;height:26px;border-radius:8px;background:rgba(21,122,91,.1);color:var(--brand);display:grid;place-items:center;font-weight:800;transition:transform .2s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-answer-inner{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted);max-width:78%}
@media (max-width:640px){.faq-answer-inner{max-width:100%}}

/* 底部 CTA */
.cta-band{
  background:var(--dark);color:#F2F7F0;border-radius:22px;padding:48px 28px;text-align:center;
  background-image:radial-gradient(circle at 12% 88%,rgba(198,242,78,.16),transparent 58%);
  border:1px solid var(--line-dark);position:relative;overflow:hidden;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800;margin:0 0 12px;letter-spacing:-.01em}
.cta-band p{margin:0 auto 24px;max-width:620px;color:rgba(242,247,240,.78);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 浮动 CTA */
.fab{
  position:fixed;right:24px;bottom:24px;z-index:70;display:none;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 12px 10px 20px;
  box-shadow:var(--sh2);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
@media (min-width:768px){.fab{display:flex}}
.fab.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.fab span{font-size:14px;color:var(--muted);font-weight:600}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;align-items:center;justify-content:space-between;gap:12px;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));background:rgba(10,31,26,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line-dark);
}
@media (min-width:768px){.mobile-bar{display:none}}
.mobile-bar span{font-size:13.5px;color:rgba(242,247,240,.8)}
@media (max-width:767px){body{padding-bottom:56px}}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(6,22,17,.55);opacity:0;pointer-events:none;transition:opacity .25s var(--ease);z-index:80}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:330px;background:#fff;z-index:85;
  transform:translateX(100%);transition:transform .28s var(--ease);padding:22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-head .logo-text{color:var(--ink)}
.drawer-title{font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--weak);margin:14px 0 4px}
.drawer a.dlink{display:block;padding:12px 12px;border-radius:10px;font-size:15.5px;font-weight:600;color:var(--ink);transition:background .2s var(--ease)}
.drawer a.dlink:hover,.drawer a.dlink.active{background:rgba(21,122,91,.09);color:var(--brand)}
.drawer .btn{margin-top:auto}

/* 页脚 */
.site-footer{background:var(--dark);color:#F2F7F0;margin-top:72px;position:relative;overflow:hidden;padding:64px 0 28px}
.site-footer::before{
  content:'';position:absolute;left:-10%;right:-10%;top:-90px;height:200px;
  border-radius:50%;background:radial-gradient(ellipse at center,rgba(21,122,91,.28),transparent 68%);
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr;position:relative}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.footer-brand .logo-mark{background:var(--lime)}
.footer-brand .logo-text{color:#fff}
.footer-about{margin:16px 0 12px;font-size:14.5px;line-height:1.8;color:rgba(242,247,240,.72);max-width:34ch}
.footer-record{font-size:13px;color:rgba(242,247,240,.5);margin:0}
.footer-col h4{font-size:15px;font-weight:600;margin:0 0 16px;color:#fff}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(242,247,240,.72);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-col .plain{font-size:14px;color:rgba(242,247,240,.5)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(242,247,240,.55);position:relative;
}

/* roulang page: category1 */
:root{
    --ink:#0C3B2E;
    --brand:#157A5B;
    --lime:#C6F24E;
    --orange:#FF7A45;
    --bg:#F6F4EE;
    --bg-2:#EFEDE6;
    --dark:#0A1F1A;
    --text:#10231C;
    --text-2:#5B6B64;
    --text-3:#8A9691;
    --white:#FFFFFF;
    --line:rgba(12,59,46,.12);
    --line-dark:rgba(255,255,255,.16);
    --radius-card:16px;
    --radius-img:14px;
    --radius-field:10px;
    --radius-btn:12px;
    --shadow-1:0 2px 8px rgba(12,59,46,.06);
    --shadow-2:0 16px 40px rgba(12,59,46,.10);
    --ease:cubic-bezier(.2,.7,.3,1);
    --header-h:68px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
  ::selection{background:var(--lime);color:var(--ink)}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  @media (min-width:1280px){.container{max-width:1280px;padding:0 32px}}
  @media (max-width:640px){.container{padding:0 20px}}

  /* ============ 顶部导航 ============ */
  .site-header{position:fixed;top:0;left:0;right:0;z-index:70}
  .site-header::before{
    content:"";position:absolute;inset:0;z-index:-1;
    background:rgba(255,255,255,.10);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid rgba(255,255,255,.18);
    box-shadow:0 2px 8px rgba(12,59,46,.06);
    transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .site-header.is-solid::before{
    background:rgba(246,244,238,.94);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-2);
  }
  .header-inner{height:var(--header-h);display:flex;align-items:center;gap:28px}

  .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:var(--lime);color:var(--ink);font-weight:800;font-size:17px;
    box-shadow:0 4px 14px rgba(198,242,78,.28);
  }
  .logo-text{font-weight:700;font-size:17px;letter-spacing:.01em;color:#F2F7F0;transition:color .2s var(--ease)}
  .site-header.is-solid .logo-text{color:var(--text)}

  .main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
  .nav-link{position:relative;font-size:15px;font-weight:500;padding:6px 0;color:rgba(242,247,240,.86);transition:color .2s var(--ease)}
  .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
  .nav-link:hover{color:var(--lime)}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
  .nav-link.is-active{color:#F2F7F0;font-weight:600}
  .site-header.is-solid .nav-link{color:var(--text-2)}
  .site-header.is-solid .nav-link:hover,.site-header.is-solid .nav-link.is-active{color:var(--ink)}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .icon-btn{
    width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
    border:1px solid rgba(255,255,255,.28);color:#F2F7F0;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .icon-btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.14)}
  .site-header.is-solid .icon-btn{color:var(--ink);border-color:var(--line)}
  .site-header.is-solid .icon-btn:hover{background:rgba(21,122,91,.08)}

  .menu-toggle{
    display:none;width:40px;height:40px;border-radius:10px;place-items:center;
    border:1px solid rgba(255,255,255,.28);color:#F2F7F0;
  }
  .site-header.is-solid .menu-toggle{color:var(--ink);border-color:var(--line)}
  .menu-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  /* ============ 按钮体系 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 26px;border-radius:var(--radius-btn);font-weight:700;font-size:15px;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
    border:1px solid transparent;white-space:nowrap;
  }
  .btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
  .btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 20px rgba(198,242,78,.24)}
  .btn-primary:hover{background:#B7E63D;transform:translateY(-1px);box-shadow:0 12px 26px rgba(198,242,78,.3)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{background:transparent;border-color:var(--brand);color:var(--ink)}
  .btn-outline:hover{background:rgba(21,122,91,.08);transform:translateY(-1px)}
  .btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.45);color:#F2F7F0}
  .btn-ghost-dark:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:15px;border-bottom:1px dashed var(--brand);padding-bottom:2px;transition:border-color .2s var(--ease),gap .2s var(--ease)}
  .link-arrow:hover{border-bottom-style:solid;gap:10px}
  .link-arrow::after{content:"›";font-size:17px;line-height:1}

  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
    padding:4px 10px;border-radius:999px;background:rgba(21,122,91,.12);color:var(--ink);
  }
  .badge-lime{background:rgba(198,242,78,.28);color:var(--ink)}
  .badge-ember{background:rgba(255,122,69,.16);color:#A83C10}

  /* ============ Hero ============ */
  .page-hero{position:relative;overflow:hidden;background:var(--dark);padding:132px 0 72px;min-height:300px}
  .hero-bg{
    position:absolute;inset:0;
    background-image:linear-gradient(180deg,rgba(10,31,26,.88),rgba(10,31,26,.70)),
      url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
  }
  .hero-bg::after{
    content:"";position:absolute;inset:auto -10% -40% -10%;height:70%;
    background:radial-gradient(closest-side,rgba(198,242,78,.10),transparent 70%);
  }
  .hero-inner{position:relative;z-index:2;color:#F2F7F0}
  .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(242,247,240,.66);margin-bottom:18px}
  .breadcrumb a{transition:color .2s var(--ease)}
  .breadcrumb a:hover{color:var(--lime)}
  .breadcrumb .current{color:#F2F7F0}
  .hero-title{
    font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.16;letter-spacing:-.01em;
    max-width:20ch;margin-bottom:20px;
  }
  .hero-lead{font-size:clamp(15px,1.6vw,18px);color:rgba(242,247,240,.82);max-width:56ch;margin-bottom:30px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
  .hero-stats{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;
    border-top:1px solid var(--line-dark);padding-top:24px;max-width:720px;
  }
  .hero-stats li{display:flex;flex-direction:column;gap:2px}
  .hero-stats strong{font-size:22px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:.01em}
  .hero-stats span{font-size:13px;color:rgba(242,247,240,.66)}

  /* ============ 锚点条 ============ */
  .anchor-bar{
    position:sticky;top:var(--header-h);z-index:50;
    background:rgba(246,244,238,.94);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
  .anchor-scroll::-webkit-scrollbar{display:none}
  .anchor-pill{
    flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
    color:var(--text-2);border:1px solid var(--line);background:#fff;
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
  }
  .anchor-pill:hover{color:var(--ink);border-color:var(--brand);transform:translateY(-1px)}
  .anchor-pill.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}

  /* ============ 板块通用 ============ */
  .section{padding:96px 0}
  .section-alt{background:var(--bg-2)}
  .section-dark{background:var(--dark);color:#F2F7F0}
  .section-head{max-width:760px;margin-bottom:48px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:inline-block}
  .section-title{font-size:clamp(24px,3.4vw,36px);font-weight:700;line-height:1.28;letter-spacing:-.005em}
  .section-desc{margin-top:16px;font-size:16px;color:var(--text-2);max-width:60ch}
  .section-dark .section-desc{color:rgba(242,247,240,.76)}
  .inline-cta{margin-top:28px;font-size:15px}

  /* ============ 图文交替条带 ============ */
  .feature-strip{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .feature-strip + .feature-strip{margin-top:80px}
  .feature-strip.reverse .feature-media{order:2}
  .feature-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
  .feature-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s var(--ease)}
  .feature-strip:hover .feature-media img{transform:scale(1.03)}
  .feature-body h3{font-size:clamp(20px,2.4vw,24px);font-weight:600;line-height:1.4;margin:14px 0 14px}
  .feature-body p{font-size:15.5px;color:var(--text-2)}
  .check-list{margin-top:20px;display:grid;gap:10px}
  .check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2)}
  .check-list li::before{
    content:"";position:absolute;left:0;top:8px;width:13px;height:7px;
    border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
    transform:rotate(-45deg);
  }

  /* ============ 编号时间轴 ============ */
  .timeline{display:grid;gap:0;max-width:920px}
  .timeline-item{position:relative;padding:0 0 28px 84px}
  .timeline-item::before{content:"";position:absolute;left:27px;top:60px;bottom:0;width:1px;background:var(--line)}
  .timeline-item:last-child{padding-bottom:0}
  .timeline-item:last-child::before{display:none}
  .timeline-index{
    position:absolute;left:0;top:0;width:56px;height:56px;border-radius:16px;
    background:var(--ink);color:var(--lime);display:grid;place-items:center;
    font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;
    box-shadow:0 10px 24px rgba(12,59,46,.16);
  }
  .timeline-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px 24px;box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .timeline-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .timeline-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
  .timeline-card p{font-size:15px;color:var(--text-2)}
  .timeline-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}

  /* ============ 排查卡片 ============ */
  .trouble-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .trouble-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .trouble-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .trouble-card h3{font-size:18px;font-weight:600;margin:12px 0 10px}
  .trouble-card p{font-size:15px;color:var(--text-2)}
  .trouble-card.dark{background:var(--ink);border-color:transparent;color:#F2F7F0;grid-column:1 / -1;display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center}
  .trouble-card.dark h3{color:#F2F7F0}
  .trouble-card.dark p{color:rgba(242,247,240,.78)}
  .trouble-card.dark .check-list li{color:rgba(242,247,240,.82)}
  .trouble-card.dark .check-list li::before{border-color:var(--lime)}

  /* ============ 深色数据条带 ============ */
  .proof-band{position:relative;overflow:hidden;background:var(--dark);color:#F2F7F0;padding:76px 0}
  .proof-band::before{
    content:"";position:absolute;inset:-30% -5% auto -5%;height:120%;
    background:
      radial-gradient(closest-side at 20% 30%,rgba(198,242,78,.12),transparent 70%),
      radial-gradient(closest-side at 85% 70%,rgba(255,122,69,.10),transparent 70%);
  }
  .proof-inner{position:relative;z-index:2}
  .proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
  .proof-item{
    border:1px solid var(--line-dark);border-radius:14px;padding:22px;
    background:rgba(255,255,255,.04);
    transition:transform .2s var(--ease),background .2s var(--ease);
  }
  .proof-item:hover{transform:translateY(-2px);background:rgba(255,255,255,.08)}
  .proof-num{font-size:34px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1.1}
  .proof-label{margin-top:8px;font-size:14px;color:rgba(242,247,240,.72)}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
  .faq-side .section-title{font-size:clamp(22px,2.8vw,30px)}
  .faq-side p{margin-top:14px;font-size:15px;color:var(--text-2)}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
  .faq-item:hover{border-color:rgba(21,122,91,.32)}
  .faq-item.is-open{box-shadow:var(--shadow-1);border-color:rgba(21,122,91,.4)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  }
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:999px;display:grid;place-items:center;
    background:rgba(21,122,91,.10);color:var(--brand);font-size:16px;font-weight:700;
    transition:transform .3s var(--ease),background .2s var(--ease);
  }
  .faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--lime);color:var(--ink)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .faq-a-inner{padding:0 24px 22px;font-size:15px;color:var(--text-2);max-width:78%}

  /* ============ CTA 条带 ============ */
  .cta-band{position:relative;overflow:hidden;background:var(--dark);color:#F2F7F0;padding:72px 0}
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(90deg,rgba(10,31,26,.92),rgba(10,31,26,.74)),
      url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center;
  }
  .cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
  .cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.32;max-width:24ch}
  .cta-inner p{margin-top:12px;font-size:15px;color:rgba(242,247,240,.78);max-width:52ch}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}

  /* ============ 页脚 ============ */
  .site-footer{position:relative;background:#0A1F1A;color:#F2F7F0;padding:72px 0 28px;overflow:hidden}
  .site-footer::before{
    content:"";position:absolute;left:-10%;right:-10%;top:-120px;height:240px;
    background:radial-gradient(closest-side,rgba(198,242,78,.12),transparent 72%);
  }
  .footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
  .footer-about{margin:18px 0 12px;font-size:14px;line-height:1.9;color:rgba(242,247,240,.72);max-width:38ch}
  .footer-record{font-size:13px;color:rgba(242,247,240,.5)}
  .footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:#F2F7F0}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{font-size:14px;color:rgba(242,247,240,.72);transition:color .2s var(--ease)}
  .footer-col a:hover{color:var(--lime)}
  .footer-col .plain{font-size:14px;color:rgba(242,247,240,.55)}
  .footer-bottom{
    position:relative;z-index:2;margin-top:48px;padding-top:22px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
    font-size:13px;color:rgba(242,247,240,.6);
  }

  /* ============ 浮动 CTA ============ */
  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:80;
    display:flex;align-items:center;gap:14px;
    padding:10px 10px 10px 20px;border-radius:999px;
    background:rgba(12,59,46,.96);color:#F2F7F0;
    box-shadow:var(--shadow-2);
    opacity:0;transform:translateY(12px);pointer-events:none;
    transition:opacity .25s var(--ease),transform .25s var(--ease);
  }
  .float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
  .float-cta span{font-size:14px;white-space:nowrap}
  .mobile-bar{display:none}

  body.has-drawer{overflow:hidden}

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);z-index:95;
    background:#fff;color:var(--text);
    transform:translateX(100%);transition:transform .28s var(--ease);
    padding:22px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-mask{
    position:fixed;inset:0;z-index:90;background:rgba(10,31,26,.5);
    opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
  }
  .drawer-mask.is-visible{opacity:1;pointer-events:auto}
  .drawer-group{margin-top:14px;font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.06em}
  .drawer a.drawer-link{
    display:block;padding:12px 0;font-size:16px;font-weight:600;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .drawer a.drawer-link.is-active{color:var(--brand)}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .main-nav{display:none}
    .menu-toggle{display:grid}
    .site-header::before{background:rgba(10,31,26,.62)}
    .site-header.is-solid::before{background:rgba(246,244,238,.94)}
    .faq-layout{grid-template-columns:1fr;gap:32px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
    .proof-grid{grid-template-columns:repeat(2,1fr)}
    .trouble-card.dark{grid-template-columns:1fr}
  }
  @media (max-width:860px){
    .feature-strip{grid-template-columns:1fr;gap:28px}
    .feature-strip.reverse .feature-media{order:0}
    .trouble-grid{grid-template-columns:1fr}
  }
  @media (max-width:768px){
    :root{--header-h:60px}
    .section{padding:64px 0}
    .page-hero{padding:104px 0 56px}
    .header-actions .icon-btn,.header-actions .btn{display:none}
    .faq-a-inner{max-width:100%}
    .float-cta{display:none}
    .mobile-bar{
      position:fixed;left:0;right:0;bottom:0;z-index:80;display:flex;align-items:center;
      justify-content:space-between;gap:14px;height:56px;padding:0 16px;
      padding-bottom:env(safe-area-inset-bottom);
      background:rgba(12,59,46,.97);color:#F2F7F0;box-shadow:0 -8px 24px rgba(10,31,26,.24);
    }
    .mobile-bar span{font-size:13px}
    body{padding-bottom:64px}
    .timeline-item{padding-left:0;padding-top:68px}
    .timeline-item::before{left:27px;top:60px}
    .timeline-index{top:0}
  }
  @media (max-width:640px){
    .footer-grid{grid-template-columns:1fr}
    .proof-grid{grid-template-columns:1fr}
    .hero-stats{grid-template-columns:1fr 1fr}
    .cta-inner{flex-direction:column;align-items:flex-start}
  }

/* roulang page: category2 */
:root{
  --ink:#0C3B2E;
  --ink-deep:#0A1F1A;
  --brand:#157A5B;
  --brand-soft:rgba(21,122,91,.10);
  --lime:#C6F24E;
  --orange:#FF7A45;
  --bg:#F6F4EE;
  --surface:#EFEDE6;
  --text:#10231C;
  --text-2:#5B6B64;
  --text-3:#8A9691;
  --on-dark:#F2F7F0;
  --line:rgba(12,59,46,.12);
  --line-dark:rgba(255,255,255,.16);
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --sh-1:0 2px 8px rgba(12,59,46,.06);
  --sh-2:0 16px 40px rgba(12,59,46,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --head-h:68px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1280px){.container{max-width:1280px;padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 2px 22px rgba(0,0,0,.12);
  transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.scrolled{
  background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-2);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--head-h);
}
@media (max-width:767px){.header-inner{height:60px;}}

.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--lime);
  color:var(--ink);
  font-weight:800;
  font-size:17px;
  letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(198,242,78,.28);
}
.logo-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.site-header.scrolled .logo-text{color:var(--text);}

.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.86);
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.12);}
.main-nav a.active{color:#fff;font-weight:700;}
.main-nav a.active::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--lime);
}
.site-header.scrolled .main-nav a{color:var(--text-2);}
.site-header.scrolled .main-nav a:hover{color:var(--ink);background:rgba(12,59,46,.06);}
.site-header.scrolled .main-nav a.active{color:var(--ink);}
.site-header.scrolled .main-nav a.active::after{background:var(--brand);}

.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  color:#fff;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.20);}
.site-header.scrolled .icon-btn{color:var(--ink);border-color:var(--line);background:rgba(12,59,46,.04);}
.site-header.scrolled .icon-btn:hover{background:rgba(12,59,46,.10);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 22px rgba(198,242,78,.30);}
.btn-primary:hover{background:#b6e63f;transform:translateY(-1px);box-shadow:0 12px 28px rgba(198,242,78,.38);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--ink);}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}

.hamburger{display:none;}
@media (max-width:1023px){
  .main-nav,.header-actions .btn{display:none;}
  .hamburger{display:grid;}
}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(10,31,26,.48);
  opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;
  width:300px;max-width:86vw;
  background:#fff;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  display:flex;flex-direction:column;
  padding:22px 22px 26px;
  overflow-y:auto;
  box-shadow:-18px 0 48px rgba(12,59,46,.20);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-group-title{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.08em;margin:16px 0 8px;}
.drawer-link{
  display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-link:hover{background:var(--surface);color:var(--ink);}
.drawer-link.active{background:var(--brand-soft);color:var(--ink);}
.drawer-close{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--ink);
}
.drawer-cta{margin-top:auto;padding-top:20px;}

/* ---------- hero ---------- */
.hero-cat{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  padding:150px 0 54px;
  background-image:linear-gradient(115deg,rgba(10,31,26,.90) 0%,rgba(12,59,46,.78) 48%,rgba(10,31,26,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:var(--on-dark);
  overflow:hidden;
}
.hero-cat::before{
  content:"";
  position:absolute;
  width:680px;height:680px;
  right:-200px;top:-300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16) 0%,rgba(198,242,78,0) 66%);
  pointer-events:none;
}
.hero-cat::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,242,78,.55),transparent);
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(242,247,240,.70);
  margin-bottom:18px;
}
.crumb a{color:rgba(242,247,240,.82);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--lime);}
.crumb span.sep{opacity:.5;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;
  background:rgba(198,242,78,.16);
  border:1px solid rgba(198,242,78,.34);
  color:var(--lime);
  font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.hero-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.18);}
.hero-cat h1{
  font-size:clamp(30px,4.6vw,50px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.hero-cat h1 em{font-style:normal;color:var(--lime);}
.hero-lead{
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  color:rgba(242,247,240,.86);
  max-width:640px;
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px 30px;
  margin-top:26px;
}
.hero-fact{display:flex;align-items:baseline;gap:8px;font-size:14px;color:rgba(242,247,240,.76);}
.hero-fact b{font-size:22px;font-weight:800;color:var(--lime);}

/* anchor bar */
.anchor-wrap{
  position:sticky;top:var(--head-h);z-index:60;
  background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
@media (max-width:767px){.anchor-wrap{top:60px;}}
.anchor-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;
  padding:12px 0;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;font-weight:600;
  color:var(--text-2);
  border:1px solid var(--line);
  background:#fff;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.anchor-pill:hover{color:var(--ink);border-color:rgba(21,122,91,.45);transform:translateY(-1px);}
.anchor-pill.active{background:var(--ink);color:var(--lime);border-color:var(--ink);}

/* ---------- common ---------- */
.section{padding:76px 0;}
@media (max-width:1023px){.section{padding:60px 0;}}
@media (max-width:767px){.section{padding:46px 0;}}
.section-tag{
  display:inline-block;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);
  color:var(--ink);
  font-size:13px;font-weight:700;
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(22px,3vw,32px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.005em;
  margin-bottom:14px;
}
.section-sub{color:var(--text-2);font-size:15px;max-width:720px;}

/* two column */
.two-col{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:52px;
  align-items:start;
}
@media (max-width:1023px){
  .two-col{grid-template-columns:1fr;gap:34px;}
}
.toc{position:sticky;top:calc(var(--head-h) + 76px);}
@media (max-width:1023px){.toc{position:static;}}
.toc-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 18px;
  box-shadow:var(--sh-1);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:12px;
}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:9px;
  font-size:14.5px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:var(--surface);}
.toc-list a.active{color:var(--ink);font-weight:700;background:var(--brand-soft);border-left-color:var(--brand);}
.toc-cta{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);line-height:1.7;
}
.toc-cta a{color:var(--ink);font-weight:700;border-bottom:1px dashed rgba(12,59,46,.36);}
.toc-cta a:hover{border-bottom-style:solid;}

.article-block{margin-bottom:56px;scroll-margin-top:150px;}
.article-block:last-child{margin-bottom:0;}
.article-block h2{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  line-height:1.4;
  padding-left:14px;
  position:relative;
  margin-bottom:16px;
}
.article-block h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;
  width:4px;border-radius:4px;background:var(--lime);
}
.article-block h3{
  font-size:17px;font-weight:700;margin:22px 0 8px;
}
.article-block p{
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.9;
  margin-bottom:14px;
}
.article-block p strong{color:var(--text);font-weight:700;}
.article-figure{
  margin:22px 0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-figure figcaption{
  font-size:13px;color:var(--text-3);
  padding:10px 14px;background:#fff;border-top:1px solid var(--line);
}

.note-box{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:12px;
  padding:16px 18px;
  margin:20px 0;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}
.note-box b{color:var(--ink);}

/* table */
.table-scroll{overflow-x:auto;margin:22px 0;border-radius:var(--r-img);border:1px solid var(--line);background:#fff;}
table.cmp{width:100%;min-width:640px;border-collapse:collapse;font-size:14.5px;}
table.cmp thead th{
  background:var(--ink);
  color:var(--on-dark);
  font-weight:600;
  text-align:left;
  padding:13px 16px;
  white-space:nowrap;
}
table.cmp tbody td{
  padding:13px 16px;
  border-top:1px solid var(--line);
  color:var(--text-2);
  vertical-align:top;
}
table.cmp tbody tr:nth-child(even){background:rgba(239,237,230,.55);}
table.cmp tbody td:first-child{color:var(--text);font-weight:700;white-space:nowrap;}
.table-caption{font-size:13px;color:var(--text-3);margin-top:-12px;margin-bottom:22px;}

/* steps */
.steps{display:grid;gap:14px;margin:22px 0;}
.step{
  display:grid;grid-template-columns:56px minmax(0,1fr);
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(21,122,91,.30);}
.step-no{
  width:56px;height:56px;
  border-radius:14px;
  display:grid;place-items:center;
  background:var(--surface);
  color:var(--ink);
  font-size:19px;font-weight:800;
  letter-spacing:-.02em;
}
.step:hover .step-no{background:var(--lime);}
.step h3{margin:2px 0 6px;font-size:17px;font-weight:700;}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}

/* scene cards */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin:22px 0;
}
@media (max-width:639px){.scene-grid{grid-template-columns:1fr;}}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.scene-card h3{font-size:16.5px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.scene-card h3 i{
  width:8px;height:8px;border-radius:2px;background:var(--orange);flex:0 0 auto;
}
.scene-card h3 i.g{background:var(--brand);}
.scene-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}

/* dark stat band */
.stat-band{
  background:var(--ink-deep);
  color:var(--on-dark);
  border-radius:var(--r-card);
  padding:26px 24px;
  margin:26px 0;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  position:relative;
  overflow:hidden;
}
.stat-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.5;pointer-events:none;
}
.stat-item{position:relative;z-index:2;}
.stat-item b{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--lime);line-height:1.2;}
.stat-item span{font-size:13.5px;color:rgba(242,247,240,.72);}
@media (max-width:639px){.stat-band{grid-template-columns:1fr;gap:16px;}}

/* faq */
.faq-list{display:grid;gap:12px;margin-top:22px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:rgba(21,122,91,.40);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  background:transparent;border:0;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-ico{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  background:var(--surface);
  color:var(--ink);
  font-size:16px;font-weight:700;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item.open .faq-ico{transform:rotate(180deg);background:var(--lime);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:15px;line-height:1.85;color:var(--text-2);
  max-width:78%;
}
@media (max-width:767px){.faq-a-inner{max-width:100%;}}

/* inline cta link */
.inline-cta{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:1px dashed rgba(12,59,46,.36);
  margin-top:6px;
  transition:border-color .2s var(--ease),color .2s var(--ease),gap .2s var(--ease);
}
.inline-cta:hover{border-bottom-style:solid;border-bottom-color:var(--ink);gap:10px;}

/* cta band */
.cta-band{
  position:relative;
  background-image:linear-gradient(120deg,rgba(12,59,46,.96),rgba(10,31,26,.94)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  color:var(--on-dark);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;
  width:560px;height:560px;left:-160px;bottom:-320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16),rgba(198,242,78,0) 68%);
}
.cta-inner{
  position:relative;z-index:2;
  padding:64px 0;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:28px;
  align-items:center;
}
@media (max-width:767px){
  .cta-inner{grid-template-columns:1fr;gap:22px;padding:48px 0;}
}
.cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:rgba(242,247,240,.80);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* footer */
.site-footer{
  position:relative;
  background:var(--ink-deep);
  color:var(--on-dark);
  padding:64px 0 26px;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;
  right:-180px;top:-280px;
  width:620px;height:620px;border-radius:50%;
  border:1px solid rgba(198,242,78,.14);
  box-shadow:0 0 0 60px rgba(198,242,78,.04),0 0 0 130px rgba(198,242,78,.02);
  pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line-dark);
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:26px;}}
.footer-brand .logo-text{color:var(--on-dark);}
.footer-about{
  margin-top:16px;
  font-size:14px;line-height:1.85;
  color:rgba(242,247,240,.68);
  max-width:330px;
}
.footer-record{margin-top:12px;font-size:13px;color:rgba(242,247,240,.46);}
.footer-col h4{font-size:15px;font-weight:600;color:var(--on-dark);margin-bottom:14px;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col .plain{
  font-size:14px;
  color:rgba(242,247,240,.72);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:8px 22px;
  justify-content:space-between;
  padding-top:20px;
  font-size:13px;
  color:rgba(242,247,240,.52);
}

/* floating cta */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 20px;
  border-radius:999px;
  background:rgba(10,31,26,.94);
  border:1px solid var(--line-dark);
  box-shadow:0 18px 44px rgba(10,31,26,.30);
  backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;
  transform:translateY(14px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta span{font-size:14px;color:rgba(242,247,240,.86);white-space:nowrap;}
@media (max-width:767px){.float-cta{display:none;}}

.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:75;
  display:none;
  align-items:center;justify-content:space-between;gap:12px;
  height:56px;
  padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(10,31,26,.96);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line-dark);
}
.mobile-bar span{font-size:13.5px;color:rgba(242,247,240,.82);}
@media (max-width:767px){
  .mobile-bar{display:flex;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom));}
  .site-footer{padding-bottom:calc(26px + 56px);}
}

/* roulang page: category3 */
:root{
  --ink:#10231C;
  --ink-2:#5B6B64;
  --ink-3:#8A9691;
  --brand:#0C3B2E;
  --brand-2:#157A5B;
  --lime:#C6F24E;
  --orange:#FF7A45;
  --bg:#F6F4EE;
  --bg-2:#EFEDE6;
  --dark:#0A1F1A;
  --white:#FFFFFF;
  --on-dark:#F2F7F0;
  --line:rgba(12,59,46,.12);
  --line-dark:rgba(255,255,255,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(12,59,46,.06);
  --sh-2:0 16px 40px rgba(12,59,46,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;background:var(--brand);color:var(--on-dark);
  padding:10px 18px;border-radius:0 0 10px 0;
}
.skip-link:focus{left:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{max-width:1280px;padding:0 32px}}

/* ===== 导航 ===== */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 24px rgba(10,31,26,.10);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  position:fixed;
  background:rgba(246,244,238,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-2);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--lime);color:var(--brand);
  display:grid;place-items:center;font-weight:800;font-size:17px;flex:0 0 auto;
}
.logo-text{font-size:17px;font-weight:700;color:var(--on-dark);letter-spacing:-.01em;transition:color var(--t);white-space:nowrap}
.site-header.is-stuck .logo-text{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:8px 14px;border-radius:var(--r-pill);font-size:15px;
  color:rgba(242,247,240,.88);transition:var(--t);
}
.nav-link:hover{background:rgba(255,255,255,.16);color:#fff}
.nav-link.active{color:#fff;box-shadow:inset 0 -2px 0 var(--lime)}
.site-header.is-stuck .nav-link{color:var(--ink-2)}
.site-header.is-stuck .nav-link:hover{background:rgba(12,59,46,.07);color:var(--ink)}
.site-header.is-stuck .nav-link.active{color:var(--brand);background:rgba(21,122,91,.12);box-shadow:none}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);display:grid;place-items:center;
  color:var(--on-dark);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  transition:var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.24)}
.site-header.is-stuck .icon-btn{color:var(--ink);background:#fff;border-color:var(--line);box-shadow:var(--sh-1)}
.site-header.is-stuck .icon-btn:hover{border-color:var(--brand-2);color:var(--brand)}
.menu-btn{display:none}

/* ===== 抽屉 ===== */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:120;
  background:#fff;transform:translateX(105%);transition:transform 300ms var(--ease);
  display:flex;flex-direction:column;padding:20px;box-shadow:-16px 0 40px rgba(12,59,46,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head .logo-text{color:var(--ink)}
.drawer-close{width:38px;height:38px;border-radius:var(--r-pill);background:var(--bg-2);display:grid;place-items:center;color:var(--ink)}
.drawer-nav{display:grid;gap:4px}
.drawer-nav h5{margin:14px 0 6px;font-size:13px;letter-spacing:.08em;color:var(--ink-3);font-weight:600}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-input);font-size:16px;color:var(--ink);transition:var(--t)}
.drawer-nav a:hover{background:var(--bg-2)}
.drawer-nav a.active{background:rgba(21,122,91,.10);color:var(--brand);font-weight:600}
.drawer-cta{margin-top:auto}
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,31,26,.5);z-index:110;
  opacity:0;pointer-events:none;transition:opacity 300ms var(--ease);
}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:calc(var(--nav-h) + 56px) 0 56px;
  min-height:320px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(115deg,rgba(10,31,26,.94) 0%,rgba(12,59,46,.78) 46%,rgba(12,59,46,.42) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:var(--on-dark);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:520px;height:520px;
  border:1px solid rgba(198,242,78,.20);border-radius:50%;pointer-events:none;
}
.hero::before{
  content:"";position:absolute;right:-40px;bottom:-260px;width:680px;height:680px;
  border:1px solid rgba(255,255,255,.08);border-radius:50%;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(242,247,240,.70);margin-bottom:18px}
.crumbs a:hover{color:var(--lime)}
.crumbs span[aria-hidden]{color:rgba(242,247,240,.40)}
.hero h1{
  font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.16;letter-spacing:-.01em;
  max-width:22ch;color:#fff;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(242,247,240,.86);max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stat{font-size:13px;color:rgba(242,247,240,.72);display:flex;align-items:baseline;gap:8px}
.hero-stat b{font-size:24px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ===== 锚点条 ===== */
.anchor-bar{
  position:sticky;top:0;z-index:50;
  background:rgba(246,244,238,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{display:flex;gap:8px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-pill);font-size:14px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);white-space:nowrap;transition:var(--t);
}
.anchor-pill:hover{border-color:var(--brand-2);color:var(--brand)}
.anchor-pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== 板块 ===== */
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.section-dark{background:var(--dark);color:var(--on-dark)}
.section-dark::selection{background:var(--lime);color:var(--brand)}
section[id],div[id].anchor-target{scroll-margin-top:130px}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-2);letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block;border-radius:2px}
.section h2{font-size:clamp(24px,3.4vw,36px);font-weight:700;line-height:1.28;margin-bottom:14px}
.section-dark .eyebrow{color:var(--lime)}
.section-sub{font-size:16px;color:var(--ink-2);max-width:62ch}
.section-dark .section-sub{color:rgba(242,247,240,.75)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;padding:14px 26px;
  border:1px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--lime);color:var(--brand)}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{border-color:rgba(255,255,255,.55);color:var(--on-dark)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--brand-2);color:var(--brand)}
.btn-outline:hover{background:rgba(21,122,91,.08)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);
  border-bottom:1px dashed rgba(12,59,46,.35);padding-bottom:2px;transition:var(--t);
}
.link-arrow:hover{border-bottom-style:solid;color:var(--brand-2)}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover span{transform:translateX(4px)}
.inline-cta{margin-top:32px;font-size:15px}
.inline-cta a{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;
  border-bottom:1px dashed rgba(12,59,46,.35);padding-bottom:2px;transition:var(--t);
}
.inline-cta a:hover{border-bottom-style:solid;color:var(--brand-2)}
.section-dark .inline-cta a{color:var(--lime);border-bottom-color:rgba(198,242,78,.45)}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:rgba(21,122,91,.12);color:var(--brand);
}
.badge-lime{background:rgba(198,242,78,.35);color:#25401F}
.badge-orange{background:rgba(255,122,69,.16);color:#B4451C}
.badge-dark{background:rgba(255,255,255,.14);color:var(--on-dark)}

/* ===== 卡片 ===== */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:var(--t);display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 350ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:21px;font-weight:600;line-height:1.4}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.8}
.card-dark{
  background:linear-gradient(160deg,#0C3B2E 0%,#0A1F1A 100%);
  color:var(--on-dark);border-color:rgba(255,255,255,.14);
}
.card-dark .card-body h3{color:#fff}
.card-dark .card-body p{color:rgba(242,247,240,.78)}
.card-num{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--orange);font-variant-numeric:tabular-nums}
.card-feature{background:var(--bg-2)}

/* ===== 步骤 ===== */
.steps{display:grid;gap:18px;grid-template-columns:1fr}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:var(--t);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--orange);
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:15px;color:var(--ink-2)}
.demo-split{display:grid;gap:36px;align-items:start}
.demo-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:var(--bg-2);
}
.demo-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ===== 图文分栏 ===== */
.split{display:grid;gap:36px;align-items:center}
.split-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.info-list{display:grid;gap:16px;margin-top:24px}
.info-item{display:flex;gap:16px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:var(--t)}
.info-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.info-icon{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:rgba(21,122,91,.12);color:var(--brand);font-size:17px;
}
.info-item h3{font-size:17px;font-weight:600;margin-bottom:4px}
.info-item p{font-size:15px;color:var(--ink-2)}

/* ===== 数据条带 ===== */
.stat-band{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line-dark);border:1px solid var(--line-dark);
  border-radius:var(--r-card);overflow:hidden;margin-bottom:44px;
}
.stat-item{background:rgba(255,255,255,.03);padding:26px 22px}
.stat-item .stat-value{
  font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--lime);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;
}
.stat-item .stat-label{margin-top:8px;font-size:14px;color:rgba(242,247,240,.72)}

/* ===== 规格表 ===== */
.spec-wrap{overflow-x:auto;border-radius:var(--r-img);border:1px solid var(--line-dark)}
.spec-table{width:100%;border-collapse:collapse;min-width:600px;background:rgba(255,255,255,.04)}
.spec-table th{
  background:rgba(255,255,255,.08);color:var(--on-dark);text-align:left;
  font-size:14px;font-weight:600;padding:16px 18px;letter-spacing:.02em;white-space:nowrap;
}
.spec-table td{
  padding:16px 18px;font-size:15px;color:rgba(242,247,240,.86);
  border-top:1px solid var(--line-dark);vertical-align:top;
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.spec-table td:first-child{color:#fff;font-weight:600}
.table-note{margin-top:14px;font-size:13px;color:rgba(242,247,240,.6)}

/* ===== 方案卡 ===== */
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);transition:var(--t);display:flex;flex-direction:column;gap:14px;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan-card.is-featured{border:2px solid var(--brand-2);position:relative}
.plan-card.is-featured::after{
  content:"常用";position:absolute;top:-13px;right:20px;background:var(--lime);color:var(--brand);
  font-size:12px;font-weight:700;padding:3px 12px;border-radius:var(--r-pill);
}
.plan-card h3{font-size:20px;font-weight:600}
.plan-card .plan-desc{font-size:15px;color:var(--ink-2)}
.plan-list{display:grid;gap:10px;margin-top:6px}
.plan-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);padding-top:10px;border-top:1px solid var(--line)}
.plan-list li i{color:var(--brand-2);margin-top:6px;font-size:13px}

/* ===== FAQ ===== */
.faq-layout{display:grid;gap:32px}
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:var(--t)}
.faq-item:hover{border-color:rgba(21,122,91,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--ink);
}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;border-radius:var(--r-pill);display:grid;place-items:center;
  background:rgba(21,122,91,.12);color:var(--brand-2);font-size:13px;transition:transform 250ms var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:78%}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:48px 36px;
  background:linear-gradient(120deg,#0C3B2E 0%,#0A1F1A 100%);color:var(--on-dark);
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;
  border:1px solid rgba(198,242,78,.22);border-radius:50%;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:20px;max-width:680px}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;color:#fff}
.cta-band p{font-size:16px;color:rgba(242,247,240,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;background:var(--dark);color:var(--on-dark);
  padding:72px 0 28px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;left:50%;top:-260px;transform:translateX(-50%);
  width:1100px;height:520px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(21,122,91,.34),rgba(10,31,26,0) 72%);
  pointer-events:none;
}
.site-footer>.container{position:relative;z-index:2}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
.footer-brand .logo{margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(242,247,240,.72);max-width:40ch}
.footer-record{margin-top:12px;font-size:13px;color:rgba(242,247,240,.5)}
.footer-col h4{font-size:15px;font-weight:600;color:var(--on-dark);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(242,247,240,.72);transition:var(--t)}
.footer-col a:hover{color:var(--lime)}
.footer-col .plain{font-size:14px;color:rgba(242,247,240,.55)}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(242,247,240,.58);
}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:14px;padding:10px 10px 10px 22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;transform:translateY(10px);transition:var(--t);
}
.float-cta.show{opacity:1;pointer-events:auto;transform:none}
.float-cta span{font-size:14px;color:var(--ink-2);white-space:nowrap}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  height:calc(56px + env(safe-area-inset-bottom));
  padding:0 16px env(safe-area-inset-bottom);
  background:rgba(246,244,238,.97);border-top:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.mobile-bar span{font-size:13px;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 响应式 ===== */
@media (min-width:640px){
  .step-card{padding:26px}
}
@media (min-width:768px){
  .stat-band{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
  .faq-layout{grid-template-columns:0.85fr 1.6fr;gap:44px}
  .demo-split{grid-template-columns:1.05fr 1fr}
  .split{grid-template-columns:1fr 1fr}
  .cta-band{padding:56px 48px}
}
@media (min-width:1024px){
  .steps{grid-template-columns:repeat(4,1fr)}
  .section{padding:96px 0}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  .header-actions .btn-sm{display:none}
  .section{padding:72px 0}
}
@media (max-width:767px){
  :root{--nav-h:60px}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .section{padding:48px 0}
  .hero{padding:calc(var(--nav-h) + 40px) 0 40px;min-height:0}
  .hero h1{max-width:100%}
  .hero-lead{font-size:15px}
  .anchor-bar{top:0}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  .section-head{margin-bottom:26px}
  .faq-a p{max-width:100%}
  .cta-band{padding:36px 22px;border-radius:16px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .logo-text{font-size:15px}
  .hero-stat b{font-size:20px}
  .card-body{padding:20px}
  .card-body h3{font-size:19px}
  .stat-item{padding:22px 18px}
}