/* roulang page: index */
:root{
  --c-primary:#0E7C5A;
  --c-primary-deep:#0A5C43;
  --c-primary-soft:#E4F2EC;
  --c-accent:#FF6B2C;
  --c-highlight:#00C2A8;
  --c-ink:#14201C;
  --c-ink-2:#43524C;
  --c-muted:#7C8B85;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --r-card:16px;
  --r-btn:10px;
  --r-hero:24px;
  --r-tag:8px;
  --sh-1:0 1px 2px rgba(20,32,28,.05),0 8px 24px -12px rgba(20,32,28,.10);
  --sh-2:0 14px 32px -14px rgba(14,124,90,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-0.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(246,247,244,.58);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,32,28,.08);
  transition:background .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1);
}
.site-header.is-solid{background:rgba(255,255,255,.95);box-shadow:0 6px 20px -10px rgba(20,32,28,.18)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .22s cubic-bezier(.4,0,.2,1)}
.site-header.is-solid .nav-inner{height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(140deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -8px rgba(14,124,90,.6);
}
.brand-mark svg{width:17px;height:17px;display:block}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em;line-height:1.2}
.brand-sub{font-size:12px;font-weight:600;color:var(--c-primary);margin-left:4px;letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .18s cubic-bezier(.4,0,.2,1)}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:rgba(255,255,255,.7);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .18s,background .18s;
}
.nav-toggle:hover{border-color:var(--c-primary)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;top:72px;left:12px;right:12px;z-index:55;
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  box-shadow:0 24px 48px -28px rgba(20,32,28,.34);
  padding:10px 16px 16px;display:none;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:12px 4px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.mobile-drawer a:last-of-type{border-bottom:none}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:700}
.mobile-drawer .drawer-cta{margin-top:12px;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .2s cubic-bezier(.4,0,.2,1),color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;padding:12px 24px}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--c-accent);color:#fff;padding:13px 26px}
.btn-accent:hover{background:#e85a1d;color:#fff;transform:translateY(-1px);box-shadow:0 14px 32px -14px rgba(255,107,44,.5)}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;padding:11px 23px}
.btn-outline:hover{background:rgba(14,124,90,.08);color:var(--c-primary-deep)}
.btn-ghost{color:var(--c-primary);padding:12px 4px;font-weight:600}
.btn-ghost:hover{text-decoration:underline}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:130px 0 0;
  background-image:
    linear-gradient(100deg,rgba(246,247,244,.97) 0%,rgba(246,247,244,.9) 44%,rgba(246,247,244,.5) 72%,rgba(246,247,244,.2) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(to bottom,transparent 0%,#000 38%,#000 72%,transparent 100%);
  mask-image:linear-gradient(to bottom,transparent 0%,#000 38%,#000 72%,transparent 100%);
}
.hero > .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;padding-bottom:56px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px;padding-bottom:72px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary-deep);background:var(--c-primary-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:999px;background:var(--c-highlight);flex:none}
.hero h1{font-size:30px;line-height:1.18;font-weight:800;margin-bottom:18px;max-width:16em}
@media(min-width:768px){.hero h1{font-size:40px}}
@media(min-width:1024px){.hero h1{font-size:48px}}
.hero-sub{font-size:16px;line-height:1.8;color:var(--c-ink-2);max-width:34em;margin-bottom:28px}
@media(min-width:1024px){.hero-sub{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-actions .btn{width:100%}
@media(min-width:520px){.hero-actions .btn{width:auto}}

.gauge-card{
  background:rgba(255,255,255,.92);
  border:1px solid var(--c-line);
  border-radius:var(--r-hero);
  box-shadow:var(--sh-1);
  padding:24px;
  position:relative;overflow:hidden;
}
.gauge-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--c-primary),var(--c-highlight) 60%,var(--c-accent))}
.gauge-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.gauge-title{font-size:14px;font-weight:700;color:var(--c-ink)}
.gauge-tag{font-size:12px;font-weight:600;color:var(--c-primary-deep);background:rgba(0,194,168,.12);border-radius:var(--r-tag);padding:3px 9px}
.gauge-ring{position:relative;width:100%;max-width:240px;margin:8px auto 4px}
.gauge-ring svg{width:100%;height:auto;display:block}
.gauge-center{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.gauge-value{font-size:44px;font-weight:800;line-height:1;color:var(--c-primary-deep);font-variant-numeric:tabular-nums;letter-spacing:-0.03em}
.gauge-unit{font-size:13px;font-weight:600;color:var(--c-muted);margin-top:6px}
.gauge-note{font-size:12.5px;color:var(--c-muted);text-align:center;margin-top:4px}
.gauge-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px;border-top:1px solid var(--c-line);padding-top:14px}
.gauge-metrics div{text-align:center}
.gauge-metrics dt{font-size:12px;color:var(--c-muted);margin-bottom:4px}
.gauge-metrics dd{margin:0;font-size:16px;font-weight:700;color:var(--c-ink);font-variant-numeric:tabular-nums}

.hero-strip{
  position:relative;z-index:2;background:rgba(255,255,255,.86);
  border-top:1px solid var(--c-line);backdrop-filter:blur(8px);
}
.hero-strip-grid{display:grid;grid-template-columns:repeat(2,1fr)}
@media(min-width:768px){.hero-strip-grid{grid-template-columns:repeat(4,1fr)}}
.hero-strip-item{padding:18px 12px;border-right:1px solid var(--c-line);text-align:center}
.hero-strip-item:last-child{border-right:none}
@media(min-width:768px){.hero-strip-item{padding:22px 16px}}
.hero-strip-item b{display:block;font-size:24px;font-weight:800;color:var(--c-primary-deep);line-height:1.2;font-variant-numeric:tabular-nums}
@media(min-width:768px){.hero-strip-item b{font-size:30px}}
.hero-strip-item span{display:block;font-size:12.5px;color:var(--c-muted);margin-top:4px}

/* ---------- generic section ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:92px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:24px;font-weight:700;line-height:1.3;margin-bottom:12px}
@media(min-width:768px){.section-head h2{font-size:32px}}
.section-head p{font-size:15.5px;color:var(--c-ink-2);line-height:1.85}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head-row .section-head{margin-bottom:0}
.kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 20px;position:relative;overflow:hidden;
  transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s,border-color .2s;
}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.2);box-shadow:var(--sh-2)}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px}
.stat-card:nth-child(1)::before{background:var(--c-primary)}
.stat-card:nth-child(2)::before{background:var(--c-highlight)}
.stat-card:nth-child(3)::before{background:var(--c-accent)}
.stat-card:nth-child(4)::before{background:var(--c-ink)}
.stat-num{font-size:34px;font-weight:800;line-height:1.1;color:var(--c-ink);font-variant-numeric:tabular-nums;letter-spacing:-0.03em}
@media(min-width:1024px){.stat-num{font-size:46px}}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--c-muted);margin-left:4px;letter-spacing:0}
.stat-label{font-size:14px;font-weight:600;color:var(--c-ink-2);margin-top:8px}
.stat-desc{font-size:13px;color:var(--c-muted);line-height:1.7;margin-top:6px}

/* ---------- bento services ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:1024px){.bento{grid-template-columns:repeat(12,1fr);gap:20px}}
.bento-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;
  transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;
}
.bento-item:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.22);box-shadow:var(--sh-2)}
.bento-lead{border-color:rgba(14,124,90,.35);box-shadow:0 10px 30px -18px rgba(14,124,90,.45);padding:0;overflow:hidden}
.bento-lead .lead-body{padding:24px}
.bento-lead .lead-media{position:relative;overflow:hidden;border-radius:14px 14px 0 0;aspect-ratio:16/9;background:var(--c-primary-soft)}
.bento-lead .lead-media img{width:100%;height:100%;object-fit:cover}
.badge-lead{
  position:absolute;top:14px;left:14px;background:var(--c-accent);color:#fff;
  font-size:12px;font-weight:700;border-radius:var(--r-tag);padding:4px 10px;
}
.bento-no{font-size:12px;font-weight:700;color:var(--c-muted);letter-spacing:.1em;font-variant-numeric:tabular-nums;margin-bottom:12px;display:block}
.bento-icon{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary-soft);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.bento-icon svg{width:20px;height:20px;color:var(--c-primary)}
.bento-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
.bento-lead h3{font-size:22px}
.bento-item p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;margin-bottom:14px}
.bento-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.bento-link:hover{text-decoration:underline;color:var(--c-primary-deep)}
.bento-link svg{width:14px;height:14px;transition:transform .2s}
.bento-link:hover svg{transform:translateX(3px)}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:768px){.compare{grid-template-columns:1fr 1fr;gap:24px}}
.compare-col{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.compare-col.is-plain{background:#FBFCFA;color:var(--c-muted)}
.compare-col.is-best{border-color:rgba(14,124,90,.4);border-top:4px solid var(--c-primary);padding-top:21px;box-shadow:var(--sh-2)}
.compare-col h3{font-size:17px;font-weight:700;margin-bottom:16px}
.compare-col.is-plain h3{color:var(--c-muted)}
.compare-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid var(--c-line)}
.compare-row:last-child{border-bottom:none;padding-bottom:0}
.compare-row dt{font-size:14px;font-weight:600;color:var(--c-ink-2);flex:none;max-width:40%}
.compare-col.is-plain .compare-row dt{color:var(--c-muted)}
.compare-row dd{margin:0;font-size:14.5px;line-height:1.7;text-align:right;color:var(--c-muted)}
.compare-col.is-best .compare-row dd{color:var(--c-primary-deep);font-weight:600}
.compare-note{font-size:12.5px;color:var(--c-muted);margin-top:16px;line-height:1.7}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:1024px){.news-layout{grid-template-columns:7fr 5fr;gap:24px}}
.news-lead{
  display:flex;flex-direction:column;overflow:hidden;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s,border-color .2s;
}
.news-lead:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.22);box-shadow:var(--sh-2)}
.news-lead-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-soft)}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.4,0,.2,1)}
.news-lead:hover .news-lead-media img{transform:scale(1.03)}
.news-lead-body{padding:22px}
.news-lead-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body p{font-size:14px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.news-side{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.news-side{grid-template-columns:1fr 1fr}}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;box-shadow:var(--sh-1);overflow:hidden;padding:0;
  transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s,border-color .2s;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.22);box-shadow:var(--sh-2)}
.news-card-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-soft)}
.news-card-media img{width:100%;height:100%;object-fit:cover}
.news-card-body{padding:16px;display:flex;flex-direction:column;flex:1}
.news-card-body h3{font-size:15.5px;font-weight:600;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-body p{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--c-muted)}
.pill{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-tag);padding:3px 9px}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);padding:48px 24px;text-align:center;
  background:rgba(255,255,255,.6);color:var(--c-muted);font-size:14.5px;
}
.empty-state svg{width:34px;height:34px;color:var(--c-muted);margin:0 auto 12px}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:rgba(14,124,90,.32)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:16px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px}
.faq-icon{position:relative;width:18px;height:18px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);border-top:1px solid var(--c-line);padding-top:16px;margin:0 20px 20px;padding-left:0;padding-right:0;padding-bottom:0}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.contact-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start}}
.contact-points{margin:24px 0}
.contact-points li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-2);line-height:1.8;margin-bottom:12px}
.contact-points svg{width:18px;height:18px;color:var(--c-primary);flex:none;margin-top:6px}
.contact-info{border-top:1px solid var(--c-line);padding-top:18px}
.contact-info div{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);margin-bottom:8px}
.contact-info b{color:var(--c-ink);font-weight:600;flex:none}
.form-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:20px;box-shadow:var(--sh-1);padding:24px;overflow:hidden;
}
@media(min-width:768px){.form-card{padding:32px}}
.form-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-primary)}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-card > p{font-size:13.5px;color:var(--c-muted);margin-bottom:22px}
.field{display:block;margin-bottom:16px}
.field > span{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--c-line);border-radius:10px;
  padding:12px 14px;font-size:15px;color:var(--c-ink);font-family:inherit;line-height:1.6;
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,90,.15)}
.field input::placeholder,.field textarea::placeholder{color:#A9B5AF}
.form-two{display:grid;grid-template-columns:1fr;gap:0 16px}
@media(min-width:640px){.form-two{grid-template-columns:1fr 1fr}}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:18px}
.check-row input{width:16px;height:16px;margin-top:5px;flex:none;accent-color:var(--c-primary)}
.check-row label{font-size:13px;color:var(--c-muted);line-height:1.7}
.form-submit{width:100%}
@media(min-width:520px){.form-submit{width:auto}}
.form-tip{font-size:13px;color:var(--c-primary-deep);background:var(--c-primary-soft);border-radius:10px;padding:10px 14px;margin-top:14px;display:none}
.form-tip.is-on{display:block}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary-deep) 0%,#0B6B4F 55%,#0E7C5A 100%);
  border-radius:var(--r-hero);padding:32px 24px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  position:relative;overflow:hidden;
}
@media(min-width:768px){.cta-band{padding:40px 40px}}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:26px 26px;opacity:.7;
}
.cta-band-text{position:relative;z-index:1;max-width:34em}
.cta-band-text h2{color:#fff;font-size:22px;font-weight:700;margin-bottom:8px}
@media(min-width:768px){.cta-band-text h2{font-size:28px}}
.cta-band-text p{color:rgba(255,255,255,.82);font-size:14.5px;line-height:1.8;margin:0}
.cta-band .btn{position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:#0C1B16;color:rgba(255,255,255,.72);margin-top:0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:var(--c-highlight)}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);margin-top:16px;max-width:26em}
.footer-col h4{font-size:13.5px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.66);transition:color .18s}
.footer-col a:hover{color:var(--c-highlight)}
.footer-contact div{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-contact b{color:#fff;font-weight:600;margin-right:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--c-highlight)}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}

/* mobile nav breakpoints */
@media(max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
}
@media(min-width:1024px){
  .mobile-drawer{display:none !important}
}
@media(max-width:1023px){
  .nav-actions .btn-primary{display:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E7C5A;
  --c-primary-deep:#0A5C43;
  --c-primary-soft:#E4F2EC;
  --c-accent:#FF6B2C;
  --c-highlight:#00C2A8;
  --c-ink:#14201C;
  --c-ink-2:#43524C;
  --c-muted:#7C8B85;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --r-card:16px;
  --r-btn:10px;
  --r-hero:24px;
  --shadow-sm:0 1px 2px rgba(20,32,28,.05), 0 8px 24px -12px rgba(20,32,28,.10);
  --shadow-hover:0 14px 32px -14px rgba(14,124,90,.28);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:88px 0}}
.section-tight{padding:44px 0}
@media(min-width:1024px){.section-tight{padding:64px 0}}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(246,247,244,.58);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,32,28,.08);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  box-shadow:0 6px 20px -10px rgba(20,32,28,.18);
  border-bottom-color:rgba(20,32,28,.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:72px;transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-deep));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px -6px rgba(14,124,90,.6);
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--c-ink);line-height:1.2}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--c-muted);letter-spacing:1.6px;line-height:1.4}
.nav-links{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;padding:8px 13px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--c-ink-2);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a:hover{color:var(--c-primary);background:rgba(14,124,90,.07)}
.nav-links a.is-active{color:var(--c-primary);font-weight:700}
.nav-links a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;display:none;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:10px;cursor:pointer;
  color:var(--c-ink-2);transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
@media(min-width:768px){.icon-btn{display:inline-flex}}
.icon-btn:hover{background:rgba(14,124,90,.08);color:var(--c-primary);border-color:rgba(14,124,90,.14)}
.menu-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:10px;cursor:pointer;color:var(--c-ink);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
@media(min-width:1024px){.menu-toggle{display:none}}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.menu-toggle svg{width:20px;height:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(14,124,90,.9)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -12px rgba(255,107,44,.85)}
.btn-accent:hover{background:#E85B1E;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:rgba(14,124,90,.42)}
.btn-outline:hover{background:rgba(14,124,90,.08);border-color:var(--c-primary)}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer{
  display:none;background:var(--c-surface);
  border-top:1px solid var(--c-line);
  padding:14px 20px 22px;
  box-shadow:0 18px 30px -22px rgba(20,32,28,.4);
}
.drawer.is-open{display:block}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer a:last-of-type{border-bottom:0}
.drawer a.is-active{color:var(--c-primary);font-weight:700}
.drawer .drawer-cta{margin-top:14px;width:100%}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  padding:118px 0 52px;
  background-image:
    linear-gradient(104deg, rgba(246,247,244,.97) 0%, rgba(246,247,244,.93) 44%, rgba(228,242,236,.78) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
@media(min-width:1024px){.page-hero{padding:156px 0 76px}}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.page-hero .wrap{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:20px}
.crumbs a:hover{color:var(--c-primary);text-decoration:underline}
.crumbs .sep{color:rgba(20,32,28,.28)}
.crumbs .current{color:var(--c-primary);font-weight:700}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.35fr .85fr;gap:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
  padding:6px 12px;border-radius:8px;margin-bottom:16px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-highlight)}
.page-hero h1{
  font-size:30px;line-height:1.18;font-weight:800;letter-spacing:-.4px;
  color:var(--c-ink);margin-bottom:18px;
}
@media(min-width:768px){.page-hero h1{font-size:38px}}
@media(min-width:1024px){.page-hero h1{font-size:48px}}
.hero-sub{font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:620px}
@media(min-width:768px){.hero-sub{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-actions .btn{width:100%}
@media(min-width:520px){.hero-actions .btn{width:auto}}
.gauge-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-hero);
  padding:24px;box-shadow:var(--shadow-sm);
}
.gauge-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.gauge-top span{font-size:12.5px;color:var(--c-muted);letter-spacing:.4px}
.gauge-dot{width:8px;height:8px;border-radius:50%;background:var(--c-highlight);box-shadow:0 0 0 4px rgba(0,194,168,.16)}
.gauge-ring{
  position:relative;width:100%;max-width:196px;margin:10px auto 16px;aspect-ratio:1/1;
}
.gauge-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.gauge-center{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
}
.gauge-center .num{font-size:40px;font-weight:800;line-height:1;color:var(--c-ink)}
.gauge-center small{font-size:12px;color:var(--c-muted);letter-spacing:.6px}
.gauge-metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--c-line);padding-top:14px;gap:8px}
.gauge-metrics div{text-align:center}
.gauge-metrics b{display:block;font-size:16px;font-weight:800;color:var(--c-primary-deep)}
.gauge-metrics span{font-size:11.5px;color:var(--c-muted)}

/* ============ Section heading ============ */
.sec-head{margin-bottom:28px}
@media(min-width:768px){.sec-head{margin-bottom:36px}}
.sec-head h2{font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.2px}
@media(min-width:768px){.sec-head h2{font-size:30px}}
@media(min-width:1024px){.sec-head h2{font-size:32px}}
.sec-head p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:720px}
.sec-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
  transition:gap .18s var(--ease),color .18s var(--ease);
}
.link-more:hover{gap:10px;color:var(--c-primary-deep);text-decoration:underline}

/* ============ Metrics ============ */
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.metric-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px 18px 18px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  overflow:hidden;
}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--c-primary)}
.metric-card.tone-a::before{background:var(--c-highlight)}
.metric-card.tone-b::before{background:var(--c-accent)}
.metric-card.tone-c::before{background:var(--c-ink)}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(14,124,90,.22)}
.metric-card .num{font-size:30px;font-weight:800;line-height:1.1;color:var(--c-ink);display:block}
@media(min-width:768px){.metric-card .num{font-size:40px}}
.metric-card .unit{font-size:13px;font-weight:600;color:var(--c-muted);margin-left:4px}
.metric-card p{margin-top:8px;font-size:13.5px;color:var(--c-ink-2);line-height:1.6}

/* ============ Feature horizontal ============ */
.feature-card{
  display:grid;grid-template-columns:1fr;gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feature-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(14,124,90,.2)}
@media(min-width:900px){.feature-card{grid-template-columns:1.15fr .85fr}}
.feature-body{padding:26px 22px}
@media(min-width:768px){.feature-body{padding:36px 34px}}
.feature-body h3{font-size:22px;line-height:1.4;font-weight:700;margin-bottom:12px}
.feature-body > p{font-size:15px;color:var(--c-ink-2);line-height:1.85}
.feature-list{margin-top:20px;display:grid;gap:12px}
.feature-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.check{
  flex-shrink:0;width:20px;height:20px;margin-top:3px;border-radius:50%;
  background:var(--c-primary-soft);display:inline-flex;align-items:center;justify-content:center;
}
.check svg{width:12px;height:12px;stroke:var(--c-primary);stroke-width:2.4;fill:none}
.feature-media{position:relative;min-height:220px;background:var(--c-primary-soft)}
.feature-media img{width:100%;height:100%;object-fit:cover;min-height:220px}
@media(min-width:900px){.feature-media img{min-height:100%}}
.feature-tag{
  position:absolute;left:16px;top:16px;
  background:rgba(255,255,255,.94);color:var(--c-primary-deep);
  font-size:12px;font-weight:700;padding:5px 11px;border-radius:8px;
  border:1px solid rgba(14,124,90,.16);
}

/* ============ Data groups ============ */
.data-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.data-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.data-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.data-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.data-card h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:4px}
.data-card .sub{font-size:13px;color:var(--c-muted);margin-bottom:16px}
.data-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-top:1px solid var(--c-line);
}
.data-row:first-of-type{border-top:1px solid var(--c-line)}
.data-row .name{font-size:14.5px;color:var(--c-ink-2)}
.data-row .val{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:800;color:var(--c-primary-deep)}
.data-row .val small{font-size:12px;font-weight:600;color:var(--c-muted)}
.trend{width:8px;height:8px;border-radius:50%;display:inline-block}
.trend.up{background:var(--c-highlight)}
.trend.flat{background:var(--c-primary)}
.trend.warn{background:var(--c-accent)}

/* ============ Voice / feedback ============ */
.voice-band{
  background:var(--c-primary-soft);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  position:relative;overflow:hidden;
}
.voice-band .wave{position:absolute;left:0;right:0;bottom:0;height:64px;opacity:.35;pointer-events:none}
.voice-grid{display:grid;grid-template-columns:1fr;gap:18px;position:relative;z-index:1}
@media(min-width:768px){.voice-grid{grid-template-columns:repeat(3,1fr);gap:22px}}
.voice-card{
  background:var(--c-surface);border:1px solid rgba(14,124,90,.14);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.voice-card p{font-size:14.8px;line-height:1.8;color:var(--c-ink-2)}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line)}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,var(--c-primary),var(--c-highlight));
  color:#fff;font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.voice-meta b{display:block;font-size:14px;font-weight:700;color:var(--c-ink)}
.voice-meta span{font-size:12.5px;color:var(--c-muted)}

/* ============ FAQ ============ */
.faq-list{max-width:840px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:rgba(14,124,90,.28);box-shadow:var(--shadow-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;position:relative;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px}
.faq-item[open] .faq-icon{transform:rotate(90deg);background:var(--c-primary-soft);border-color:rgba(14,124,90,.3)}
.faq-item[open] .faq-icon::after{opacity:0;transform:scaleY(0)}
.faq-body{padding:0 20px 20px;border-top:1px solid var(--c-line);margin-top:0}
.faq-body p{font-size:15px;line-height:1.8;color:var(--c-ink-2);padding-top:16px}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  border-radius:var(--r-hero);
  padding:32px 24px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:0 18px 44px -26px rgba(10,92,67,.8);
}
@media(min-width:768px){.cta-band{padding:44px 40px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.3),transparent 65%);pointer-events:none;
}
.cta-band h2{font-size:22px;line-height:1.35;font-weight:800;color:#fff;max-width:620px}
@media(min-width:768px){.cta-band h2{font-size:27px}}
.cta-band p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.82);max-width:600px;line-height:1.8}
.cta-band .btn{position:relative;z-index:1;width:100%}
@media(min-width:520px){.cta-band .btn{width:auto}}
.cta-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.7)}

/* ============ Footer ============ */
.site-footer{background:#101A16;color:#C7D3CE;padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:34px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:#8FA39B}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:#9FB2AA;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#A7BAB2;transition:color .18s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-contact div{display:flex;gap:10px;font-size:14px;color:#A7BAB2;margin-bottom:10px;line-height:1.7}
.footer-contact b{color:#E7EFEB;font-weight:600;flex-shrink:0}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8FA39B;
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:#9FB2AA;transition:color .18s var(--ease)}
.footer-links a:hover{color:#fff;text-decoration:underline}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --c-primary:#0E7C5A;
  --c-primary-deep:#0A5C43;
  --c-primary-soft:#E4F2EC;
  --c-accent:#FF6B2C;
  --c-accent-deep:#E95719;
  --c-highlight:#00C2A8;
  --c-ink:#14201C;
  --c-ink-2:#43524C;
  --c-muted:#7C8B85;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --c-soft-line:#EDF1EC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-hero:24px;
  --shadow-soft:0 1px 2px rgba(20,32,28,.05),0 8px 24px -12px rgba(20,32,28,.10);
  --shadow-hover:0 14px 32px -14px rgba(14,124,90,.28);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s cubic-bezier(.4,0,.2,1),opacity .2s cubic-bezier(.4,0,.2,1);}
a:hover{color:var(--c-primary-deep);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--c-ink);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:rgba(14,124,90,.18);color:var(--c-ink);}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.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;}

/* header */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(246,247,244,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,32,28,.08);
  transition:background .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),border-color .22s cubic-bezier(.4,0,.2,1);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 20px -10px rgba(20,32,28,.18);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  transition:height .22s cubic-bezier(.4,0,.2,1);
}
.site-header.is-scrolled .header-inner{height:62px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 6px 14px -8px rgba(14,124,90,.55);
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.2;white-space:nowrap;}
.brand-sub{font-size:11px;font-weight:600;color:var(--c-primary);margin-left:4px;letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:24px;}
.nav-links a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-ink-2);
  padding:8px 0;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-search{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-ink-2);border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.header-search:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:rgba(14,124,90,.16);}
.header-search svg{width:19px;height:19px;}
.menu-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background .2s,border-color .2s;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s,opacity .2s;}
.menu-toggle:hover{border-color:rgba(14,124,90,.35);background:var(--c-primary-soft);}
.mobile-drawer{
  display:none;
  position:fixed;
  top:84px;left:16px;right:16px;
  z-index:99;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:16px;
  box-shadow:0 24px 50px -24px rgba(20,32,28,.35);
  padding:18px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-label{font-size:12px;color:var(--c-muted);letter-spacing:.08em;margin:0 0 8px 8px;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:9px 10px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--c-ink-2);
}
.mobile-drawer a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mobile-drawer a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}
.mobile-drawer a::after{content:"→";font-size:14px;color:var(--c-muted);}
.mobile-drawer .drawer-cta{margin-top:12px;padding-top:12px;border-top:1px solid var(--c-line);}
.mobile-drawer .drawer-cta a{background:var(--c-primary);color:#fff;justify-content:center;border-radius:10px;}
.mobile-drawer .drawer-cta a::after{color:rgba(255,255,255,.8);}
.mobile-drawer .drawer-cta a:hover{background:var(--c-primary-deep);color:#fff;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:700;line-height:1.2;
  border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(14,124,90,.55);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 18px -12px rgba(255,107,44,.55);}
.btn-accent:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,124,90,.4);}
.btn-ghost:hover{background:rgba(14,124,90,.08);color:var(--c-primary-deep);border-color:var(--c-primary);}
.btn-sm{min-height:38px;padding:9px 16px;font-size:13.5px;border-radius:9px;}

/* page hero */
.page-hero{
  position:relative;
  padding:130px 0 98px;
  background-color:var(--c-bg);
  background-image:
    linear-gradient(180deg,rgba(246,247,244,.91),rgba(246,247,244,.98)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 88%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 88%);
}
.page-hero .wrap{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--c-ink-2);font-weight:500;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:#A8B5AF;}
.breadcrumb .current{
  color:var(--c-primary);font-weight:700;
  max-width:min(68vw,760px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--c-primary-deep);
  background:rgba(255,255,255,.82);
  border:1px solid rgba(14,124,90,.18);
  border-radius:999px;
  padding:8px 14px;
  box-shadow:0 4px 12px -8px rgba(20,32,28,.25);
}
.hero-kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-highlight);box-shadow:0 0 0 4px rgba(0,194,168,.14);}
.hero-line{
  margin-top:18px;
  font-size:14px;color:var(--c-ink-2);
  max-width:660px;
}

/* article layout */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:28px;
  align-items:start;
  margin-top:-52px;
  position:relative;
  z-index:2;
  padding-bottom:64px;
}
.article-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:24px;
  box-shadow:var(--shadow-soft);
  padding:34px;
  min-width:0;
}
.article-head{padding-bottom:6px;}
.article-badge{
  display:inline-flex;align-items:center;
  padding:5px 11px;border-radius:8px;
  background:var(--c-primary-soft);
  color:var(--c-primary-deep);
  font-size:12px;font-weight:700;
  letter-spacing:.02em;
}
.article-title{
  font-size:clamp(27px,3.1vw,36px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.015em;
  margin:14px 0 14px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;
  font-size:13px;color:var(--c-muted);
  line-height:1.6;
}
.article-meta .dot{color:#B7C3BD;}
.article-meta b{color:var(--c-ink-2);font-weight:600;}
.meta-divider{height:1px;background:var(--c-line);margin:22px 0;}
.article-summary{
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
  border-radius:12px;
  padding:16px 18px;
  color:var(--c-ink-2);
  font-size:15px;
  line-height:1.85;
}
.article-cover{
  margin:24px 0 6px;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--c-line);
  background:#EEF3EF;
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.article-cover figcaption{
  font-size:12px;color:var(--c-muted);text-align:center;
  padding:9px 14px 10px;background:#FBFCFA;
  border-top:1px solid var(--c-line);
}
.article-body{
  margin-top:26px;
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink-2);
  min-width:0;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  margin:2em 0 .8em;
  padding-left:14px;
  font-size:25px;
  line-height:1.4;
  font-weight:800;
  color:var(--c-ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:3px;background:var(--c-primary);
}
.article-body h3{
  margin:1.7em 0 .65em;
  font-size:20px;
  line-height:1.45;
  font-weight:700;
  color:var(--c-ink);
}
.article-body h4{
  margin:1.4em 0 .5em;
  font-size:17px;
  font-weight:700;
  color:var(--c-ink);
}
.article-body ul,.article-body ol{
  margin:.7em 0 1.2em;
  padding-left:1.25em;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.42em 0;line-height:1.9;}
.article-body strong{color:var(--c-ink);font-weight:700;}
.article-body blockquote{
  margin:1.4em 0;
  padding:16px 20px;
  background:#F3F6F3;
  border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  color:var(--c-ink-2);
  font-style:normal;
}
.article-body a{font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.article-body img{border-radius:12px;margin:1.2em auto;height:auto;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:12px;color:var(--c-muted);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.3em 0;
  font-size:14px;
  display:block;
  overflow-x:auto;
  border-radius:10px;
  border:1px solid var(--c-line);
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);
  padding:10px 12px;
  text-align:left;
  min-width:110px;
}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:700;}
.article-body tr:nth-child(even) td{background:#FAFBF9;}
.article-body pre{
  background:#F1F4F1;border-radius:10px;padding:16px;
  overflow-x:auto;font-size:13.5px;line-height:1.7;
  border:1px solid var(--c-line);
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}
.article-empty{
  padding:54px 24px;
  border:1px dashed #C9D5CE;
  border-radius:16px;
  text-align:center;
  background:#FBFCFA;
}
.article-empty .empty-icon{
  width:54px;height:54px;margin:0 auto 14px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.article-empty h2{font-size:21px;margin-bottom:8px;}
.article-empty p{color:var(--c-muted);font-size:14px;margin-bottom:18px;}

.article-foot{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 10px;border-radius:8px;
  background:#F4F7F4;border:1px solid var(--c-line);
  color:var(--c-ink-2);font-size:12px;font-weight:600;
}
.tag:hover{border-color:rgba(14,124,90,.35);color:var(--c-primary);background:var(--c-primary-soft);}
.article-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px;}

/* aside */
.article-aside{min-width:0;position:sticky;top:88px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);
  padding:20px;
}
.side-title{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:15px;font-weight:800;color:var(--c-ink);
  margin-bottom:12px;
}
.side-title span{font-size:11px;font-weight:600;color:var(--c-muted);letter-spacing:.08em;}
.side-nav{display:flex;flex-direction:column;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 2px;
  border-top:1px solid var(--c-soft-line);
  color:var(--c-ink-2);
  font-size:14px;font-weight:600;
}
.side-nav a:first-child{border-top:0;}
.side-nav a:hover{color:var(--c-primary);padding-left:4px;}
.side-nav .index{font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.side-nav .arrow{color:var(--c-muted);font-size:14px;transition:transform .2s,color .2s;}
.side-nav a:hover .arrow{transform:translateX(2px);color:var(--c-primary);}
.side-contact{
  background:linear-gradient(145deg,var(--c-primary-deep),#074433);
  border-color:rgba(255,255,255,.06);
  color:#fff;
}
.side-contact .side-title{color:#fff;margin-bottom:8px;}
.side-contact p{color:rgba(255,255,255,.76);font-size:13.5px;line-height:1.8;margin-bottom:16px;}
.side-contact .btn{width:100%;}
.side-contact .contact-line{
  margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.16);
  font-size:12.5px;color:rgba(255,255,255,.7);
  display:flex;flex-direction:column;gap:6px;
}
.side-contact .contact-line b{color:#fff;font-weight:700;}
.side-points{display:flex;flex-direction:column;gap:10px;}
.side-points li{
  display:flex;align-items:flex-start;gap:9px;
  color:var(--c-ink-2);font-size:13.5px;line-height:1.7;
}
.side-points li::before{
  content:"";width:15px;height:15px;border-radius:50%;
  flex:0 0 15px;margin-top:4px;
  background:var(--c-primary-soft);
  box-shadow:inset 0 0 0 4px var(--c-surface),inset 0 0 0 8px var(--c-primary);
}

/* faq */
.faq-section{
  margin-top:24px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:24px;
  padding:30px 34px;
  box-shadow:var(--shadow-soft);
}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);
}
.section-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--c-accent);}
.faq-section h2{font-size:25px;font-weight:800;line-height:1.4;margin-top:8px;margin-bottom:6px;}
.faq-lead{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.faq-list{display:flex;flex-direction:column;}
.faq-item{border-top:1px solid var(--c-line);}
.faq-item:first-child{border-top:0;}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 0;
  cursor:pointer;
  font-size:15.5px;font-weight:700;color:var(--c-ink);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  width:24px;height:24px;flex:0 0 24px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:17px;font-weight:600;line-height:1;
  transition:transform .2s,background .2s,color .2s;
}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item[open] summary{color:var(--c-primary-deep);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-answer{
  padding:0 0 18px;
  color:var(--c-ink-2);
  font-size:15px;
  line-height:1.85;
}

/* related categories */
.related-section{padding:8px 0 64px;}
.related-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:22px;}
.related-head h2{font-size:30px;line-height:1.3;font-weight:800;margin-top:8px;}
.related-head p{font-size:14px;color:var(--c-muted);max-width:560px;margin-top:6px;}
.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.category-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform .2s,box-shadow .2s,border-color .2s;
  min-width:0;
}
.category-card:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.28);box-shadow:var(--shadow-hover);color:inherit;}
.category-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#EEF3EF;}
.category-card-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.category-card .cat-no{font-size:11px;color:var(--c-muted);letter-spacing:.12em;font-weight:700;}
.category-card h3{font-size:17px;font-weight:800;line-height:1.4;}
.category-card p{font-size:13px;line-height:1.7;color:var(--c-ink-2);}
.category-card .cat-link{margin-top:auto;font-size:13px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.category-card:hover .cat-link{color:var(--c-primary-deep);}

/* cta */
.cta-band{
  margin:0 0 72px;
  background:linear-gradient(120deg,var(--c-primary-deep),#083E30);
  border-radius:24px;
  padding:34px 38px;
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:24px;
  align-items:center;
  box-shadow:0 22px 46px -28px rgba(10,92,67,.55);
  overflow:hidden;
  position:relative;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-100px;
  width:300px;height:300px;border-radius:50%;
  border:38px solid rgba(255,255,255,.05);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:800;color:#fff;margin-bottom:6px;}
.cta-band p{font-size:14px;color:rgba(255,255,255,.74);line-height:1.8;max-width:680px;}
.cta-band .btn{min-height:46px;}

/* footer */
.site-footer{background:#0A2E24;color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:36px;padding-bottom:42px;}
.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8FE0C6;}
.footer-desc{font-size:13px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.08em;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{color:rgba(255,255,255,.66);font-size:13px;line-height:1.6;}
.footer-col a:hover{color:#fff;}
.footer-contact div{display:flex;gap:10px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.66);margin-bottom:9px;}
.footer-contact b{color:#fff;font-weight:600;flex:0 0 34px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-links a{color:rgba(255,255,255,.56);font-size:12.5px;}
.footer-links a:hover{color:#fff;}

@media (max-width:1100px){
  .nav-links{gap:16px;}
  .nav-links a{font-size:13.5px;}
  .header-actions .btn-sm{padding:9px 13px;font-size:13px;}
}
@media (max-width:1024px){
  .wrap{padding-left:24px;padding-right:24px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);margin-top:-46px;}
  .article-aside{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}
  .side-contact{grid-column:1 / -1;}
  .category-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.2fr .8fr .8fr 1fr;gap:24px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .wrap{padding-left:20px;padding-right:20px;}
  .header-inner{height:66px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:10px;}
  .brand-mark{width:31px;height:31px;}
  .header-search{display:none;}
  .page-hero{padding:118px 0 84px;}
  .article-layout{margin-top:-42px;gap:20px;padding-bottom:48px;}
  .article-card{padding:24px 20px;border-radius:20px;}
  .article-title{font-size:26px;}
  .article-body{font-size:15.5px;line-height:1.9;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18.5px;}
  .article-aside{grid-template-columns:1fr;}
  .side-contact{grid-column:auto;}
  .faq-section{padding:24px 20px;border-radius:20px;}
  .faq-section h2{font-size:22px;}
  .related-section{padding-bottom:48px;}
  .related-head h2{font-size:25px;}
  .cta-band{margin-bottom:52px;padding:28px 22px;grid-template-columns:1fr;}
  .cta-band h2{font-size:24px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-desc{max-width:100%;}
  .footer-bottom{align-items:flex-start;flex-direction:column;}
}
@media (max-width:640px){
  .header-actions .btn-sm{display:none;}
  .category-grid{grid-template-columns:1fr;}
  .category-card{flex-direction:row;align-items:stretch;}
  .category-card img{width:118px;aspect-ratio:auto;min-height:118px;object-fit:cover;border-radius:0;}
  .category-card-body{padding:14px 14px 14px 16px;}
  .article-actions{justify-content:stretch;}
  .article-actions .btn{flex:1 1 100%;}
}
@media (max-width:520px){
  .wrap{padding-left:16px;padding-right:16px;}
  .page-hero{padding:108px 0 74px;}
  .breadcrumb{font-size:12px;}
  .breadcrumb .current{max-width:58vw;}
  .article-card{padding:20px 16px;border-radius:18px;}
  .article-title{font-size:23px;}
  .article-summary{padding:14px 14px;font-size:14px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:20px;}
  .article-body table{font-size:13px;}
  .faq-section{padding:20px 16px;}
  .faq-item summary{font-size:14.5px;}
  .related-head h2{font-size:23px;}
  .cta-band{padding:24px 18px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col h4{margin-bottom:10px;}
  .footer-contact div{font-size:12.5px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E7C5A;
  --c-primary-deep:#0A5C43;
  --c-primary-soft:#E4F2EC;
  --c-accent:#FF6B2C;
  --c-accent-deep:#E85A1D;
  --c-highlight:#00C2A8;
  --c-ink:#14201C;
  --c-ink-2:#43524C;
  --c-muted:#7C8B85;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --r-card:16px;
  --r-btn:10px;
  --r-panel:24px;
  --r-tag:8px;
  --shadow-1:0 1px 2px rgba(20,32,28,.05), 0 8px 24px -12px rgba(20,32,28,.10);
  --shadow-2:0 14px 32px -14px rgba(14,124,90,.28);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-deep)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-0.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(246,247,244,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,32,28,.08);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 6px 20px -10px rgba(20,32,28,.18);border-bottom-color:var(--c-line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .header-inner{height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:inline-grid;place-items:center;box-shadow:0 6px 14px -8px rgba(14,124,90,.8)}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink);line-height:1.1;letter-spacing:-0.02em}
.brand-sub{display:block;font-size:10px;font-weight:600;color:var(--c-muted);letter-spacing:.16em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{position:relative;display:inline-flex;align-items:center;padding:8px 12px;font-size:14.5px;font-weight:500;color:var(--c-ink-2);text-decoration:none;border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease)}
.nav-links a:hover{color:var(--c-primary);background:rgba(14,124,90,.06)}
.nav-links a.is-active{color:var(--c-primary);font-weight:700}
.nav-links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid rgba(20,32,28,.10);background:rgba(255,255,255,.7);display:inline-grid;place-items:center;cursor:pointer;color:var(--c-ink-2);transition:all .2s var(--ease)}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(14,124,90,.35);background:#fff}
.icon-btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{width:44px;height:44px;border-radius:10px;border:1px solid rgba(20,32,28,.10);background:rgba(255,255,255,.8);display:none;place-items:center;cursor:pointer;color:var(--c-ink)}
.nav-toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav-toggle svg{width:20px;height:20px}
.mobile-nav{position:fixed;top:72px;left:16px;right:16px;z-index:99;background:#fff;border:1px solid var(--c-line);border-radius:16px;box-shadow:0 20px 44px -20px rgba(20,32,28,.4);padding:10px;display:none}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink-2);text-decoration:none;transition:all .18s var(--ease)}
.mobile-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.mobile-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700}
@media(max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .header-actions .btn-cta-head{display:none}
}
@media(max-width:639px){
  .header-actions .icon-btn{display:none}
  .brand-name{font-size:16px}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;text-decoration:none;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)}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(14,124,90,.9)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(255,107,44,.9)}
.btn-accent:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(14,124,90,.08);color:var(--c-primary-deep);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-primary-deep)}
.btn-light:hover{background:#F1F8F5;color:var(--c-primary-deep);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-cta-head{padding:9px 18px;font-size:14px}

/* ---------- 页头 ---------- */
.page-hero{position:relative;padding:150px 0 68px;background:linear-gradient(158deg,#E6F3ED 0%,#F1F7F3 46%,var(--c-bg) 100%);overflow:hidden;border-bottom:1px solid var(--c-line)}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
  background-size:24px 24px;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(0,194,168,.16),transparent 68%);pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:20px}
.breadcrumb a{color:var(--c-ink-2);text-decoration:none}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumb .sep{color:#B5C1BB}
.breadcrumb .current{color:var(--c-primary);font-weight:700}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--r-tag);background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:12.5px;font-weight:700;letter-spacing:.04em;margin-bottom:18px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-highlight);box-shadow:0 0 0 4px rgba(0,194,168,.16)}
.page-hero h1{font-size:30px;line-height:1.18;font-weight:800;max-width:16em;letter-spacing:-0.02em}
@media(min-width:768px){.page-hero h1{font-size:40px}}
@media(min-width:1024px){.page-hero h1{font-size:46px}}
.hero-lead{margin-top:18px;max-width:44em;font-size:16px;color:var(--c-ink-2);line-height:1.85}
@media(min-width:768px){.hero-lead{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 34px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(20,32,28,.09)}
.hero-facts .fact{display:flex;align-items:baseline;gap:8px;font-size:13.5px;color:var(--c-muted)}
.hero-facts .fact b{font-size:22px;font-weight:800;color:var(--c-primary-deep);font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:92px 0}}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--c-primary);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary)}
.section-head h2{font-size:24px;line-height:1.3;font-weight:700}
@media(min-width:768px){.section-head h2{font-size:32px}}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--c-ink-2)}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-primary)}
.text-link:hover{color:var(--c-primary-deep);text-decoration:underline}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 流程时间线 ---------- */
.flow{position:relative;margin-top:12px;display:grid;grid-template-columns:1fr;gap:30px}
@media(min-width:900px){.flow{grid-template-columns:repeat(4,1fr);gap:0;margin-top:20px}}
.flow::before{display:none}
@media(min-width:900px){
  .flow::before{display:block;content:"";position:absolute;left:3%;right:8%;top:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(14,124,90,.85),rgba(0,194,168,.45),rgba(14,124,90,.12))}
}
.flow-step{position:relative;padding-left:60px}
@media(min-width:900px){.flow-step{padding:0 26px 0 0}}
.flow-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:999px;background:#fff;
  border:2px solid var(--c-primary);color:var(--c-primary);display:grid;place-items:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px -12px rgba(14,124,90,.9);z-index:1;
}
@media(min-width:900px){
  .flow-dot{position:relative;margin-bottom:22px}
  .flow-step{padding-right:26px}
}
.flow-step::after{content:"";position:absolute;left:21px;top:48px;bottom:-6px;width:2px;background:rgba(14,124,90,.16);border-radius:2px}
@media(min-width:900px){.flow-step::after{display:none}}
.flow-step:last-child::after{display:none}
.flow-step h3{font-size:19px;font-weight:700;margin-bottom:10px}
.flow-step p{font-size:14.8px;color:var(--c-ink-2);line-height:1.8}
.flow-step .step-tag{display:inline-block;margin-top:14px;font-size:12px;font-weight:700;color:var(--c-primary-deep);background:var(--c-primary-soft);border-radius:var(--r-tag);padding:4px 10px}

/* ---------- 交替图文 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split + .split{margin-top:56px}
@media(min-width:1024px){.split + .split{margin-top:80px}}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1);background:#fff}
.split-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.split-media .media-tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--c-primary-deep);font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-tag);box-shadow:0 4px 12px -6px rgba(20,32,28,.4)}
@media(min-width:900px){.split.reverse .split-media{order:2}}
.split-body h2{font-size:23px;line-height:1.3;font-weight:700;margin-bottom:16px}
@media(min-width:768px){.split-body h2{font-size:29px}}
.split-body p{font-size:15.5px;color:var(--c-ink-2)}
.split-metrics{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.metric-chip{flex:1 1 120px;min-width:110px;background:#fff;border:1px solid var(--c-line);border-radius:12px;padding:12px 14px;box-shadow:var(--shadow-1)}
.metric-chip .k{font-size:12px;color:var(--c-muted);letter-spacing:.04em}
.metric-chip .v{font-size:22px;font-weight:800;color:var(--c-primary-deep);font-variant-numeric:tabular-nums;line-height:1.3}
.metric-chip .v span{font-size:12.5px;font-weight:600;color:var(--c-muted);margin-left:3px}

/* ---------- 节奏参考卡片 ---------- */
.rhythm-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.rhythm-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.rhythm-card{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.rhythm-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--c-primary)}
.rhythm-card:nth-child(2)::before{background:var(--c-highlight)}
.rhythm-card:nth-child(3)::before{background:#14201C}
.rhythm-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,124,90,.3)}
.rhythm-card .phase{font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--c-muted)}
.rhythm-card h3{font-size:20px;font-weight:700;margin:8px 0 12px}
.rhythm-card .freq{display:inline-block;font-size:12.5px;font-weight:700;color:var(--c-primary-deep);background:var(--c-primary-soft);border-radius:var(--r-tag);padding:4px 10px;margin-bottom:14px}
.rhythm-card p{font-size:14.6px;color:var(--c-ink-2)}

/* ---------- 服务清单 ---------- */
.service-list{list-style:none;display:grid;grid-template-columns:1fr;gap:14px 32px;margin-top:8px}
@media(min-width:768px){.service-list{grid-template-columns:1fr 1fr;gap:16px 40px}}
.service-list li{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;background:#fff;border:1px solid var(--c-line);border-radius:12px;font-size:15px;color:var(--c-ink-2);box-shadow:var(--shadow-1);transition:border-color .2s var(--ease),transform .2s var(--ease)}
.service-list li:hover{border-color:rgba(14,124,90,.32);transform:translateY(-2px)}
.service-list .tick{flex-shrink:0;width:22px;height:22px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;margin-top:2px}
.service-list .tick svg{width:13px;height:13px}
.service-list b{color:var(--c-ink);font-weight:700}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:0 22px;margin-bottom:12px;box-shadow:var(--shadow-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq details[open]{border-color:rgba(14,124,90,.32);box-shadow:0 14px 30px -20px rgba(14,124,90,.5)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:16px;font-weight:600;color:var(--c-ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px}
.faq .sign{flex-shrink:0;width:24px;height:24px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;transition:transform .2s var(--ease),background .2s var(--ease)}
.faq details[open] .sign{transform:rotate(45deg);background:var(--c-primary);color:#fff}
.faq .answer{padding:0 0 20px;border-top:1px solid var(--c-line);padding-top:16px;font-size:15px;color:var(--c-ink-2);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--c-primary-deep) 0%,#0E7C5A 62%,#12916A 100%);border-radius:var(--r-panel);padding:38px 28px;color:#EAF6F1;box-shadow:0 26px 60px -34px rgba(10,92,67,.9)}
@media(min-width:768px){.cta-band{padding:52px 48px}}
.cta-band::after{content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(0,194,168,.32),transparent 66%);pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:26px}
@media(min-width:900px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px}}
.cta-band h2{color:#fff;font-size:24px;line-height:1.3;font-weight:700}
@media(min-width:768px){.cta-band h2{font-size:30px}}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(234,246,241,.86);max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:#08261E;color:#C9DBD3;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.35fr;gap:40px}}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#8FB6A8}
.footer-brand .brand-mark{background:#0E7C5A}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#9FBBB0;max-width:26em}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{list-style:none;display:grid;gap:9px}
.footer-col a{font-size:14px;color:#B8CFC6;text-decoration:none}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-contact div{display:flex;gap:10px;font-size:14px;color:#B8CFC6;margin-bottom:9px;line-height:1.7}
.footer-contact b{flex-shrink:0;width:38px;color:#7FA598;font-weight:600}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:#8FB0A5}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{font-size:13px;color:#9FBBB0;text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline}

/* 可访问性 */
a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.cta-band a:focus-visible{outline-color:#fff}

/* roulang page: category3 */
:root{
  --c-primary:#0E7C5A;
  --c-primary-deep:#0A5C43;
  --c-primary-soft:#E4F2EC;
  --c-accent:#FF6B2C;
  --c-accent-deep:#E85A1C;
  --c-highlight:#00C2A8;
  --c-ink:#14201C;
  --c-ink-2:#43524C;
  --c-muted:#7C8B85;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --r-card:16px;
  --r-btn:10px;
  --r-hero:24px;
  --r-tag:8px;
  --sh-1:0 1px 2px rgba(20,32,28,.05),0 8px 24px -12px rgba(20,32,28,.10);
  --sh-2:0 14px 32px -14px rgba(14,124,90,.28);
  --ease:cubic-bezier(.4,0,.2,1);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font);font-size:16px;line-height:1.8;
  text-align:left;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-deep)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px -10px rgba(14,124,90,.6)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,124,90,.42)}
.btn-ghost:hover{background:rgba(14,124,90,.08);color:var(--c-primary-deep);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -12px rgba(255,107,44,.85)}
.btn-accent:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(246,247,244,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,32,28,.08);
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 20px -10px rgba(20,32,28,.18);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s var(--ease)}
.site-header.is-solid .header-inner{height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 6px 14px -8px rgba(14,124,90,.9);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:12px;font-weight:600;color:var(--c-muted);margin-left:6px;letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:14px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a:hover{color:var(--c-primary);background:rgba(14,124,90,.06)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);display:grid;place-items:center;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(14,124,90,.38);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  display:none;border-top:1px solid var(--c-line);background:rgba(255,255,255,.98);
  padding:14px 24px 22px;
}
.drawer.is-open{display:block}
.drawer nav{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
.drawer nav a{padding:12px 10px;border-radius:10px;color:var(--c-ink-2);font-size:15px;font-weight:500}
.drawer nav a:hover,.drawer nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600}
.drawer .btn{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:132px 0 76px;overflow:hidden;
  background:
    radial-gradient(900px 420px at 82% 6%,rgba(0,194,168,.14),transparent 62%),
    radial-gradient(760px 420px at 6% 90%,rgba(255,107,44,.10),transparent 66%),
    linear-gradient(180deg,#F1F6F2 0%,var(--c-bg) 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.hero .wrap{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{opacity:.6}
.crumb .current{color:var(--c-primary);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:6px 12px;border-radius:999px;background:var(--c-primary-soft);
  color:var(--c-primary-deep);font-size:13px;font-weight:600;letter-spacing:.01em;
}
.eyebrow i{width:7px;height:7px;border-radius:999px;background:var(--c-highlight);display:inline-block}
.hero h1{font-size:48px;line-height:1.18;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:600px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--r-tag);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-2);
}
.chip b{color:var(--c-primary-deep);font-weight:700}
.hero-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-hero);
  box-shadow:var(--sh-1);padding:24px;position:relative;overflow:hidden;
}
.hero-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary)}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.hero-card-head h2{font-size:16px;font-weight:700}
.card-tag{font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-tag);background:var(--c-primary-soft);color:var(--c-primary-deep)}
.kv-list li{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.kv-list li:last-child{border-bottom:0;padding-bottom:0}
.kv-list .k{font-size:14px;color:var(--c-ink-2)}
.kv-list .v{font-size:15px;font-weight:700;color:var(--c-primary-deep)}
.hero-card-note{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:12.5px;color:var(--c-muted);line-height:1.7}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .kicker{display:block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--c-ink-2);line-height:1.85}

/* ---------- gear grid ---------- */
.gear-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gear-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.gear-card:hover{transform:translateY(-2px);border-color:rgba(14,124,90,.28);box-shadow:var(--sh-2)}
.gear-media{position:relative;aspect-ratio:16/10;background:var(--c-primary-soft);overflow:hidden}
.gear-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.gear-card:hover .gear-media img{transform:scale(1.03)}
.gear-media .badge{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:var(--r-tag);
  font-size:12px;font-weight:600;background:rgba(255,255,255,.92);color:var(--c-primary-deep);
  border:1px solid rgba(14,124,90,.16);
}
.gear-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.gear-body h3{font-size:19px;line-height:1.4;font-weight:600;margin-bottom:10px}
.gear-body .desc{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin-bottom:16px}
.spec-list{border-top:1px solid var(--c-line);margin-bottom:16px}
.spec-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--c-line)}
.spec-list .k{font-size:13px;color:var(--c-muted)}
.spec-list .v{font-size:14px;font-weight:700;color:var(--c-ink)}
.gear-body .link-arrow{margin-top:auto}

/* ---------- compare ---------- */
.compare{margin-top:8px}
.compare-head{display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:0;margin-bottom:8px}
.compare-head .ch{padding:0 20px 10px;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--c-muted)}
.compare-head .ch.new{color:var(--c-primary)}
.compare-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;border-bottom:1px solid var(--c-line)}
.compare-row:last-child{border-bottom:0}
.compare-row > div{padding:16px 20px;font-size:15px;line-height:1.7}
.compare-row .ck{font-weight:600;color:var(--c-ink)}
.compare-row .cold{color:var(--c-muted)}
.compare-row .cnew{color:var(--c-primary-deep);font-weight:700;background:linear-gradient(90deg,rgba(228,242,236,.75),rgba(228,242,236,.25))}
.compare-tag{display:none;font-size:12px;font-weight:600;color:var(--c-muted);margin-bottom:2px}
.compare-note{margin-top:14px;font-size:12.5px;color:var(--c-muted);line-height:1.7}

/* ---------- myths ---------- */
.myth-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.myth-card{
  position:relative;padding:28px 24px 26px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.myth-card:hover{transform:translateY(-2px);border-color:rgba(255,107,44,.35);box-shadow:0 14px 32px -16px rgba(255,107,44,.4)}
.myth-num{
  display:block;font-size:44px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:rgba(20,32,28,.10);font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.myth-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.myth-card p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(14,124,90,.3)}
.faq-item[open]{box-shadow:var(--sh-1);border-color:rgba(14,124,90,.28)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 22px 20px;border-top:1px solid var(--c-line);margin-top:0}
.faq-answer p{padding-top:16px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  background:linear-gradient(135deg,var(--c-primary-deep),#0b4633 62%,#0a3f2e);
  color:#fff;padding:52px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:28px 28px;opacity:.75;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.32;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:620px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#0A1A15;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.5)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);margin-top:16px;max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact div{display:flex;gap:10px;font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600;flex:0 0 auto}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:rgba(255,255,255,.6);font-size:13px}
.footer-links a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero{padding:120px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:38px}
  .gear-grid{grid-template-columns:repeat(2,1fr)}
  .myth-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .hero{padding:112px 0 56px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .section{padding:60px 0}
  .section-head h2,.cta-inner h2{font-size:24px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;padding:14px 0}
  .compare-row > div{padding:4px 18px}
  .compare-row .ck{font-size:16px;font-weight:700;color:var(--c-ink);padding-top:12px}
  .compare-row .cnew{border-radius:10px;margin:6px 10px;padding:10px 12px}
  .compare-tag{display:block}
  .cta-band{padding:36px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
}
@media (max-width:520px){
  .hero h1{font-size:29px}
  .gear-grid{grid-template-columns:1fr}
  .myth-grid{grid-template-columns:1fr}
  .brand-name{font-size:16px}
  .brand-sub{display:none}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .gear-body{padding:18px}
  .myth-card{padding:22px 18px}
}

/* roulang page: category4 */
:root{
    --c-primary:#0E7C5A;
    --c-primary-deep:#0A5C43;
    --c-primary-soft:#E4F2EC;
    --c-accent:#FF6B2C;
    --c-accent-deep:#E2541A;
    --c-highlight:#00C2A8;
    --c-ink:#14201C;
    --c-ink-2:#43524C;
    --c-muted:#7C8B85;
    --c-bg:#F6F7F4;
    --c-surface:#FFFFFF;
    --c-line:#E3E8E2;
    --r-sm:8px;
    --r-md:10px;
    --r-lg:16px;
    --r-xl:24px;
    --shadow-sm:0 1px 2px rgba(20,32,28,.05),0 8px 24px -12px rgba(20,32,28,.10);
    --shadow-hover:0 14px 32px -14px rgba(14,124,90,.28);
    --ease:cubic-bezier(.4,0,.2,1);
    --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  .page-body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.85;
    color:var(--c-ink);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  .page-body a{color:var(--c-primary);text-decoration:none;}
  .page-body img{max-width:100%;display:block;}
  .page-body button,.page-body input,.page-body select,.page-body textarea{font-family:inherit;font-size:inherit;color:inherit;}
  .page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;color:var(--c-ink);}
  .page-body p{margin:0 0 1.1em;}
  .page-body ul,.page-body ol{margin:0;padding:0;}
  .page-body :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

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

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;line-height:1.2;
    border:1px solid transparent;cursor:pointer;
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-primary{background:var(--c-primary);color:#fff;}
  .btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-accent{background:var(--c-accent);color:#fff;}
  .btn-accent:hover{background:var(--c-accent-deep);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,107,44,.7);}
  .btn-accent:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
  .btn-ghost:hover{background:rgba(14,124,90,.08);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{padding:9px 18px;font-size:14px;border-radius:9px;}
  .link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);transition:gap .2s var(--ease),color .2s var(--ease);}
  .link-more:hover{gap:10px;color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:3px;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    background:rgba(246,247,244,.55);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid rgba(20,32,28,.08);
    transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(255,255,255,.94);
    border-bottom-color:var(--c-line);
    box-shadow:0 6px 20px -10px rgba(20,32,28,.18);
  }
  .header-inner{display:flex;align-items:center;gap:18px;height:72px;transition:height .22s var(--ease);}
  .site-header.is-scrolled .header-inner{height:62px;}

  .brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;flex:none;
    background:linear-gradient(150deg,var(--c-primary),var(--c-primary-deep));
    display:grid;place-items:center;
    box-shadow:0 6px 14px -8px rgba(14,124,90,.8);
  }
  .brand-mark svg{width:20px;height:20px;}
  .brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap;}
  .brand-sub{
    display:inline-block;margin-left:6px;padding:1px 6px;border-radius:6px;
    font-size:11px;font-weight:700;letter-spacing:.02em;
    color:var(--c-primary-deep);background:var(--c-primary-soft);
    vertical-align:2px;
  }

  .nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
  .nav-links a{
    position:relative;padding:8px 12px;border-radius:var(--r-sm);
    font-size:14.5px;font-weight:500;color:var(--c-ink-2);
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .nav-links a:hover{color:var(--c-primary);background:rgba(14,124,90,.07);}
  .nav-links a:active{background:rgba(14,124,90,.14);}
  .nav-links a.is-active{color:var(--c-primary);font-weight:700;}
  .nav-links a.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
    background:var(--c-primary);border-radius:2px;
  }

  .header-actions{display:flex;align-items:center;gap:10px;flex:none;}
  .icon-btn{
    width:38px;height:38px;border-radius:var(--r-md);
    display:grid;place-items:center;
    background:rgba(255,255,255,.6);border:1px solid var(--c-line);
    color:var(--c-ink-2);cursor:pointer;
    transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  }
  .icon-btn:hover{color:var(--c-primary);border-color:rgba(14,124,90,.35);background:#fff;transform:translateY(-1px);}
  .icon-btn:active{transform:translateY(0);}
  .icon-btn svg{width:18px;height:18px;}

  .nav-toggle{display:none;}
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink-2);border-radius:2px;margin:3px auto;transition:transform .2s var(--ease),opacity .2s var(--ease);}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

  .mobile-drawer{
    display:none;
    position:absolute;top:calc(100% + 8px);left:16px;right:16px;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
    box-shadow:0 24px 48px -24px rgba(20,32,28,.35);
    padding:10px;
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer a{
    display:block;padding:12px 14px;border-radius:var(--r-md);
    font-size:15px;font-weight:500;color:var(--c-ink-2);
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .mobile-drawer a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
  .mobile-drawer a.is-active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:700;}
  .mobile-drawer .drawer-cta{margin:8px 4px 4px;}

  /* ---------- 首屏 ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    padding:118px 0 56px;
    background:
      radial-gradient(120% 150% at 88% -10%, #E4F2EC 0%, rgba(246,247,244,0) 62%),
      linear-gradient(180deg,#F4F7F4 0%,#F6F7F4 100%);
    border-bottom:1px solid var(--c-line);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      linear-gradient(rgba(20,32,28,.045) 1px,transparent 1px),
      linear-gradient(90deg,rgba(20,32,28,.045) 1px,transparent 1px);
    background-size:24px 24px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
  }
  .page-hero::after{
    content:"";position:absolute;right:-90px;top:-70px;width:360px;height:360px;border-radius:50%;
    border:1px solid rgba(14,124,90,.16);
    box-shadow:inset 0 0 0 40px rgba(14,124,90,.05);
    pointer-events:none;
  }
  .page-hero .wrap{position:relative;z-index:2;}

  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px;}
  .breadcrumb a{color:var(--c-ink-2);transition:color .18s var(--ease);}
  .breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb .sep{color:#B9C4BF;}
  .breadcrumb .current{color:var(--c-primary);font-weight:700;}

  .hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:end;}
  @media(min-width:1024px){.hero-grid{grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:48px;}}

  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 12px;border-radius:999px;
    background:rgba(255,255,255,.75);border:1px solid rgba(14,124,90,.22);
    font-size:12.5px;font-weight:700;color:var(--c-primary-deep);letter-spacing:.02em;
    margin-bottom:16px;
  }
  .hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--c-highlight);display:block;}

  .page-hero h1{
    font-size:34px;line-height:1.18;font-weight:800;letter-spacing:-.02em;
    margin-bottom:16px;max-width:16em;
  }
  @media(min-width:768px){.page-hero h1{font-size:44px;}}
  @media(min-width:1280px){.page-hero h1{font-size:48px;}}
  .hero-lead{font-size:16.5px;line-height:1.8;color:var(--c-ink-2);max-width:36em;margin-bottom:24px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

  .hero-side{
    background:rgba(255,255,255,.82);
    border:1px solid var(--c-line);border-radius:var(--r-xl);
    padding:22px 22px 18px;box-shadow:var(--shadow-sm);
    backdrop-filter:blur(6px);
  }
  .hero-side h2{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:.04em;margin-bottom:14px;}
  .hero-side ol{list-style:none;display:grid;gap:10px;}
  .hero-side li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.6;}
  .hero-side li b{color:var(--c-ink);font-weight:700;}
  .step-dot{
    flex:none;width:22px;height:22px;border-radius:7px;
    display:grid;place-items:center;font-size:11.5px;font-weight:800;
    color:var(--c-primary-deep);background:var(--c-primary-soft);
    font-variant-numeric:tabular-nums;
  }

  /* ---------- 数据条 ---------- */
  .stat-band{position:relative;z-index:3;margin-top:-34px;}
  .stat-strip{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;
  }
  @media(min-width:768px){.stat-strip{grid-template-columns:repeat(4,minmax(0,1fr));}}
  .stat-strip .stat{padding:18px 20px;border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
  @media(min-width:768px){.stat-strip .stat{border-bottom:none;}}
  .stat-strip .stat:nth-child(2n){border-right:none;}
  @media(min-width:768px){
    .stat-strip .stat:nth-child(2n){border-right:1px solid var(--c-line);}
    .stat-strip .stat:last-child{border-right:none;}
  }
  .stat .k{display:block;font-size:12.5px;color:var(--c-muted);margin-bottom:4px;}
  .stat .v{font-size:24px;font-weight:800;color:var(--c-ink);line-height:1.25;}
  @media(min-width:768px){.stat .v{font-size:27px;}}
  .stat .v small{font-size:12.5px;font-weight:600;color:var(--c-muted);margin-left:4px;}

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0;}
  @media(min-width:768px){.section{padding:72px 0;}}
  @media(min-width:1024px){.section{padding:88px 0;}}
  .section-head{max-width:720px;margin-bottom:32px;}
  .section-head h2{font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:10px;}
  @media(min-width:768px){.section-head h2{font-size:30px;}}
  .section-head p{font-size:15px;color:var(--c-ink-2);margin:0;}

  /* ---------- 帮助中心主体 ---------- */
  .help-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;}
  @media(min-width:1024px){.help-layout{grid-template-columns:260px minmax(0,1fr);gap:44px;align-items:start;}}

  .anchor-nav{
    background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow-sm);
  }
  @media(min-width:1024px){.anchor-nav{position:sticky;top:88px;padding:18px;}}
  .anchor-nav h2{font-size:12.5px;font-weight:700;color:var(--c-muted);letter-spacing:.06em;margin:0 0 12px 4px;}
  .anchor-nav ol{list-style:none;display:flex;gap:8px;overflow-x:auto;padding-bottom:2px;scrollbar-width:thin;}
  @media(min-width:1024px){.anchor-nav ol{flex-direction:column;gap:3px;overflow:visible;padding-bottom:0;}}
  .anchor-nav li{flex:none;}
  .anchor-nav a{
    display:flex;align-items:center;gap:9px;
    padding:9px 13px;border-radius:var(--r-md);
    font-size:13.5px;font-weight:600;color:var(--c-ink-2);white-space:nowrap;
    border:1px solid var(--c-line);background:#fff;
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  }
  @media(min-width:1024px){
    .anchor-nav a{border-color:transparent;background:transparent;font-size:14.5px;font-weight:500;padding:10px 12px;white-space:normal;}
  }
  .anchor-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:rgba(14,124,90,.28);}
  .anchor-nav a:active{transform:translateY(1px);}
  .anchor-nav .dot{width:6px;height:6px;border-radius:50%;background:#C9D4CF;flex:none;}
  .anchor-nav a:hover .dot{background:var(--c-primary);}
  .anchor-nav .count{margin-left:auto;font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
  @media(max-width:1023px){.anchor-nav .count{display:none;}}

  .faq-group{margin-bottom:34px;scroll-margin-top:96px;}
  .faq-group:last-child{margin-bottom:0;}
  .faq-group-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px;}
  .group-index{
    flex:none;width:38px;height:38px;border-radius:12px;
    display:grid;place-items:center;
    font-size:13px;font-weight:800;color:var(--c-primary-deep);
    background:var(--c-primary-soft);border:1px solid rgba(14,124,90,.18);
    font-variant-numeric:tabular-nums;
  }
  .faq-group-head h2{font-size:20px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-bottom:4px;}
  @media(min-width:768px){.faq-group-head h2{font-size:23px;}}
  .faq-group-head p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.6;}

  .faq-item{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;
    box-shadow:0 1px 2px rgba(20,32,28,.04);
    margin-bottom:10px;overflow:hidden;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item:hover{border-color:rgba(14,124,90,.28);box-shadow:0 10px 24px -16px rgba(14,124,90,.4);}
  .faq-item[open]{border-color:rgba(14,124,90,.32);box-shadow:var(--shadow-sm);}
  .faq-item summary{
    position:relative;list-style:none;cursor:pointer;
    padding:16px 54px 16px 20px;
    font-size:15.5px;font-weight:600;line-height:1.6;color:var(--c-ink);
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--c-primary-deep);background:rgba(228,242,236,.45);}
  .faq-item summary::after{
    content:"";position:absolute;right:20px;top:50%;
    width:12px;height:12px;margin-top:-7px;
    background:
      linear-gradient(var(--c-primary),var(--c-primary)) center/12px 2px no-repeat,
      linear-gradient(var(--c-primary),var(--c-primary)) center/2px 12px no-repeat;
    border-radius:2px;
    transition:transform .2s var(--ease),background-size .2s var(--ease);
  }
  .faq-item[open] summary::after{transform:rotate(90deg);}
  .faq-item[open] summary::after{background-size:12px 2px,0 0;}
  .faq-body{
    padding:14px 20px 18px;
    border-top:1px solid var(--c-line);
    font-size:14.8px;line-height:1.85;color:var(--c-ink-2);
  }
  .faq-body p{margin:0 0 .8em;}
  .faq-body p:last-child{margin-bottom:0;}
  .faq-body .hint{
    display:inline-flex;align-items:center;gap:8px;
    margin-top:10px;padding:8px 12px;border-radius:9px;
    background:var(--c-primary-soft);color:var(--c-primary-deep);
    font-size:13.5px;font-weight:600;
  }

  /* ---------- 支持渠道 ---------- */
  .support-section{background:linear-gradient(180deg,#F2F6F3 0%,#F6F7F4 100%);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
  .support-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;}
  @media(min-width:640px){.support-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media(min-width:1024px){.support-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .support-card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
    padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:10px;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .support-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(14,124,90,.26);}
  .support-icon{
    width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
    background:var(--c-primary-soft);color:var(--c-primary-deep);border:1px solid rgba(14,124,90,.16);
  }
  .support-icon svg{width:21px;height:21px;}
  .support-card h3{font-size:18px;font-weight:700;letter-spacing:-.01em;}
  .support-card p{margin:0;font-size:14.5px;color:var(--c-ink-2);line-height:1.75;}
  .support-card .meta{
    margin-top:auto;padding-top:14px;border-top:1px dashed var(--c-line);
    font-size:13.5px;color:var(--c-muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  }
  .support-card .meta b{color:var(--c-ink);font-weight:700;}

  .support-figure{
    margin-top:28px;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);
    box-shadow:var(--shadow-sm);position:relative;background:#0A5C43;
  }
  .support-figure img{width:100%;height:260px;object-fit:cover;opacity:.9;}
  @media(min-width:768px){.support-figure img{height:320px;}}
  .support-figure figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:22px 24px;
    background:linear-gradient(180deg,rgba(10,45,35,0) 0%,rgba(10,45,35,.86) 100%);
    color:#fff;
  }
  .support-figure strong{display:block;font-size:18px;font-weight:700;margin-bottom:4px;}
  .support-figure span{font-size:14px;color:#CFE6DC;}

  /* ---------- 表单 ---------- */
  .form-section{padding:64px 0 0;}
  @media(min-width:1024px){.form-section{padding:88px 0 0;}}
  .form-shell{max-width:720px;margin:0 auto;scroll-margin-top:96px;}
  .form-card{
    position:relative;overflow:hidden;
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;
    padding:26px 20px 24px;box-shadow:var(--shadow-sm);
  }
  @media(min-width:640px){.form-card{padding:32px;}}
  .form-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--c-primary),var(--c-highlight));}
  .form-card h2{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px;}
  @media(min-width:768px){.form-card h2{font-size:26px;}}
  .form-card .form-lead{font-size:14.5px;color:var(--c-ink-2);margin-bottom:22px;}
  .form-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;}
  @media(min-width:640px){.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  .field{display:flex;flex-direction:column;gap:6px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:13px;font-weight:600;color:var(--c-ink-2);}
  .field input,.field select,.field textarea{
    width:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:12px 14px;font-size:15px;line-height:1.5;color:var(--c-ink);
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
  }
  .field textarea{min-height:112px;resize:vertical;}
  .field input::placeholder,.field textarea::placeholder{color:#A6B2AD;}
  .field input:hover,.field select:hover,.field textarea:hover{border-color:#C9D4CF;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,90,.16);
  }
  .field .tip{font-size:12.5px;color:var(--c-muted);}
  .checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-ink-2);line-height:1.6;}
  .checkbox-row input{width:17px;height:17px;margin-top:3px;accent-color:var(--c-primary);flex:none;}
  .form-submit{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
  .form-submit .btn{width:100%;}
  @media(min-width:640px){.form-submit .btn{width:auto;align-self:flex-start;padding:12px 34px;}}
  .form-note{font-size:13px;color:var(--c-muted);margin:0;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:72px;
    background:linear-gradient(165deg,#0A2B23 0%,#0B3A2C 62%,#0A2B23 100%);
    color:#CFE0D9;padding:56px 0 0;
  }
  @media(min-width:1024px){.site-footer{padding-top:72px;margin-top:96px;}}
  .footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:36px;}
  @media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:40px;}}
  .site-footer .brand{margin-bottom:14px;}
  .site-footer .brand-name{color:#fff;font-size:17px;}
  .site-footer .brand-sub{background:rgba(0,194,168,.18);color:#8FE3D1;}
  .site-footer .brand-mark{background:linear-gradient(150deg,#12A073,#0A5C43);box-shadow:none;}
  .footer-desc{font-size:13.8px;line-height:1.8;color:#9FB8AF;max-width:30em;margin:0;}
  .footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.03em;}
  .footer-col ul{list-style:none;display:grid;gap:9px;}
  .footer-col a{font-size:14px;color:#B4CBC2;transition:color .18s var(--ease),padding-left .18s var(--ease);}
  .footer-col a:hover{color:#fff;padding-left:3px;text-decoration:underline;text-underline-offset:3px;}
  .footer-contact div{display:flex;gap:10px;font-size:13.8px;color:#B4CBC2;margin-bottom:9px;line-height:1.7;}
  .footer-contact b{color:#fff;font-weight:600;flex:none;min-width:40px;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:10px 18px;
    align-items:center;justify-content:space-between;
    font-size:12.8px;color:#8CA79D;
  }
  .footer-links{display:flex;flex-wrap:wrap;gap:16px;}
  .footer-links a{color:#8CA79D;font-size:12.8px;transition:color .18s var(--ease);}
  .footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}

  @media(max-width:1023px){
    .nav-links{display:none;}
    .nav-toggle{display:inline-grid;}
  }
  @media(max-width:520px){
    .brand-name{font-size:15.5px;}
    .header-actions .btn-sm{display:none;}
    .page-hero{padding-top:104px;}
    .hero-actions .btn{width:100%;}
  }