/* roulang page: index */
:root{
  --ink:#0E3A32;--ink-2:#17624F;--mint:#3FBF9A;--mint-l:#6FE3B8;
  --amber:#F2A03D;--paper:#F6F4EF;--card:#FFFFFF;--line:#E3DFD6;--divider:#EDE9E1;
  --text:#16211E;--text-2:#52605B;--text-3:#8A938E;
  --ok:#2E9E6B;--warn:#D98324;--err:#C2452D;--info:#2C7A73;
  --grad:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --r-lg:24px;--r-md:18px;--r-sm:14px;--r-xs:12px;--r-pill:999px;
  --sh1:0 1px 2px rgba(14,58,50,.06);
  --sh2:0 12px 28px -12px rgba(14,58,50,.28);
  --sh3:0 24px 48px -20px rgba(14,58,50,.35);
  --sec:96px;--sec-m:56px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
[hidden]{display:none!important}
::selection{background:rgba(63,191,154,.3)}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:var(--sec) 0}
.section-after-hero{padding-top:140px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{margin-top:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.16em;color:var(--ink-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--mint)}
h1,h2,h3{font-weight:700;letter-spacing:0;color:var(--ink)}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35}
h3{font-size:20px;line-height:1.5}
.lead{color:var(--text-2);font-size:16px;line-height:1.9}
.muted{color:var(--text-3);font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink-2);padding:4px 0;transition:gap .16s var(--ease),color .16s var(--ease);
}
.text-link:hover{gap:12px;color:var(--ink)}
.text-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-position .3s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{
  color:#fff;background-image:var(--grad);background-size:180% 100%;background-position:0 0;
  box-shadow:var(--sh1);
}
.btn-primary:hover{background-position:100% 0;box-shadow:var(--sh2);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--sh2)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh3)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--ink-2);color:var(--ink-2);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:8px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.48;box-shadow:none;pointer-events:none}

/* badges / tags */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(63,191,154,.14);color:var(--ink-2);
}
.tag-amber{background:rgba(242,160,61,.16);color:#9A5A0C}
.tag-soft{background:rgba(14,58,50,.06);color:var(--text-2)}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--divider);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad)}
.site-header.is-scrolled{background:rgba(246,244,239,.86);box-shadow:0 8px 24px -18px rgba(14,58,50,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap}
.logo-sub{font-size:11px;font-weight:400;letter-spacing:.18em;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:10px 14px;
  font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .16s var(--ease),background .16s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(14,58,50,.05)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--ink-2);
}
.header-cta{flex:0 0 auto;min-height:44px;padding:10px 22px;font-size:14px}

/* hero */
.hero{position:relative;background:var(--grad);color:#fff;overflow:visible;padding:56px 0 20px}
.hero-deco{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 86% 8%,rgba(63,191,154,.30),transparent 70%),
    radial-gradient(420px 260px at 6% 92%,rgba(242,160,61,.18),transparent 72%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#EAF7F1;
}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--mint-l);animation:pulse 2.2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(111,227,184,.65)}
  70%{box-shadow:0 0 0 10px rgba(111,227,184,0)}
  100%{box-shadow:0 0 0 0 rgba(111,227,184,0)}
}
.hero-title{
  margin:22px 0 18px;font-size:clamp(28px,4vw,46px);line-height:1.25;color:#fff;font-weight:700;
}
.hero-title .hl{color:var(--amber)}
.hero-sub{max-width:34em;font-size:16px;line-height:1.9;color:rgba(255,255,255,.84)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;align-items:center;gap:8px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.68)}
.hero-trust svg{width:16px;height:16px;stroke:var(--mint-l);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;
  border:1px solid rgba(255,255,255,.18);box-shadow:var(--sh3);background:rgba(255,255,255,.08);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-mini{
  position:absolute;left:18px;right:18px;bottom:18px;display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,rgba(14,58,50,.62),rgba(23,98,79,.42));
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:var(--sh2);
}
.hero-mini .mini-dot{width:9px;height:9px;border-radius:50%;background:var(--mint-l);flex:0 0 auto}
.hero-mini strong{display:block;font-size:13.5px;font-weight:600;color:#fff;line-height:1.5}
.hero-mini span{display:block;font-size:12px;color:rgba(255,255,255,.72)}
.hero-badges{position:relative;z-index:3;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;margin-bottom:-88px}
.stat-pill{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 12px;box-shadow:var(--sh2);
}
.stat-pill .num{font-size:22px;font-weight:700;color:var(--ink);line-height:1.25;font-variant-numeric:tabular-nums}
.stat-pill .num em{font-style:normal;font-size:13px;color:var(--amber);margin-left:2px}
.stat-pill .lbl{font-size:11.5px;color:var(--text-3);letter-spacing:.02em;margin-top:2px}

/* services */
.services-grid{display:grid;grid-template-columns:.85fr 1.4fr;gap:48px;align-items:start}
.services-aside{position:sticky;top:96px}
.services-aside h2{margin:12px 0 16px}
.services-aside p{color:var(--text-2);font-size:15.5px;line-height:1.9;margin-bottom:20px}
.services-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.service-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--sh1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(23,98,79,.32)}
.service-card h3{font-size:17.5px;margin:14px 0 8px}
.service-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.service-lead{grid-row:span 2;border-radius:var(--r-lg);padding:0;overflow:hidden}
.service-lead .lead-media{aspect-ratio:16/10;overflow:hidden;background:rgba(14,58,50,.08)}
.service-lead .lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.service-lead:hover .lead-media img{transform:scale(1.04)}
.service-lead .lead-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.service-lead h3{font-size:21px;margin:0}
.service-lead p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.check-list{display:grid;gap:8px;margin-top:4px}
.check-list li{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--text-2)}
.check-list svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;stroke:var(--ok);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.service-card .text-link{margin-top:16px;font-size:13.5px}

/* stats band */
.stats-band{position:relative;background:var(--grad);color:#fff;padding:72px 0;overflow:hidden}
.stats-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 300px at 88% 10%,rgba(63,191,154,.24),transparent 70%);
}
.stats-inner{position:relative;z-index:2}
.stats-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.stats-head h2{color:#fff}
.stats-head .eyebrow{color:var(--mint-l)}
.stats-head .eyebrow::before{background:var(--mint-l)}
.stats-head p{color:rgba(255,255,255,.72);font-size:14.5px;max-width:36em}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-block{
  padding:24px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);
  transition:transform .16s var(--ease),background .16s var(--ease);
}
.stat-block:hover{transform:translateY(-2px);background:rgba(255,255,255,.12)}
.stat-block .num{font-size:clamp(28px,3.4vw,38px);font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;color:#fff}
.stat-block .num i{font-style:normal;font-size:16px;color:var(--mint-l);margin-left:2px}
.stat-block .lbl{margin-top:6px;font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.7)}

/* cases */
.case-viewport{position:relative}
.case-viewport::after{
  content:"";position:absolute;right:-1px;top:0;bottom:24px;width:72px;pointer-events:none;
  background:linear-gradient(90deg,rgba(246,244,239,0),var(--paper));
}
.case-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 24px;scrollbar-width:none;-ms-overflow-style:none;
}
.case-track::-webkit-scrollbar{display:none}
.case-card{
  position:relative;flex:0 0 calc((100% - 40px)/3.2);scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.case-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:rgba(14,58,50,.08)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,58,50,0) 40%,rgba(14,58,50,.72) 100%)}
.case-badge{position:absolute;left:14px;bottom:14px;z-index:2}
.case-body{padding:20px}
.case-body h3{font-size:16.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-body p{margin-top:8px;font-size:13.5px;color:var(--text-3)}

/* steps */
.steps{position:relative;display:grid;gap:16px;padding-left:36px}
.steps::before{
  content:"";position:absolute;left:11px;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--mint),rgba(63,191,154,.12));
}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(23,98,79,.28)}
.step::before{
  content:"";position:absolute;left:-30px;top:26px;width:13px;height:13px;border-radius:50%;
  background:#fff;border:3px solid var(--ink-2);
}
.step-num{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--amber)}
.step h3{font-size:17.5px;margin:6px 0 8px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* news */
.news-lead{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(23,98,79,.3)}
.news-lead-media{position:relative;min-height:260px;overflow:hidden;background:rgba(14,58,50,.08)}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-lead:hover .news-lead-media img{transform:scale(1.04)}
.news-lead-body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.news-lead-body h3{font-size:clamp(19px,2.2vw,24px);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body p{font-size:14.5px;color:var(--text-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3)}
.news-meta time{font-variant-numeric:tabular-nums}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
.news-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.news-card{
  display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;box-shadow:var(--sh1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(23,98,79,.3)}
.news-card h3{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:13.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .news-meta{margin-top:auto}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state svg{width:40px;height:40px;stroke:var(--text-3);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:14.5px;color:var(--text-2)}

/* faq */
.faq{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh1);overflow:hidden;
  transition:box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.faq-item.is-open{border-color:rgba(23,98,79,.3);box-shadow:var(--sh2);border-left:3px solid var(--amber)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;min-height:56px;
}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s var(--ease)}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85}
.faq-item.is-open .faq-a{grid-template-rows:1fr}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.form-card,.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh1);
}
.form-card h3,.info-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--text-3);margin-bottom:24px}
.field{display:grid;gap:6px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--text-2)}
.req{color:var(--err);margin-left:2px}
.input,.select,.textarea{
  width:100%;min-height:48px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-xs);padding:12px 14px;font-size:15px;color:var(--text);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.textarea{min-height:120px;resize:vertical;line-height:1.75}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--ink-2);box-shadow:0 0 0 3px rgba(23,98,79,.14)}
.input::placeholder,.textarea::placeholder{color:#AFB7B3}
.form-tip{
  margin-top:14px;padding:12px 14px;border-radius:var(--r-xs);font-size:13.5px;
  background:rgba(46,158,107,.12);color:#1F6E4B;border:1px solid rgba(46,158,107,.28);
}
.form-tip.is-error{background:rgba(194,69,45,.1);color:#9C3521;border-color:rgba(194,69,45,.28)}
.info-list{display:grid;gap:16px;margin-top:20px}
.info-row{display:flex;align-items:flex-start;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--divider)}
.info-row:last-child{border-bottom:0;padding-bottom:0}
.info-row .ico{
  width:36px;height:36px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:rgba(63,191,154,.14);color:var(--ink-2);
}
.info-row .ico svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.info-row .k{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}
.info-row .v{font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;word-break:break-all}
.map-box{
  margin-top:20px;border:1px dashed var(--line);border-radius:var(--r-md);
  min-height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  text-align:center;padding:24px;background:repeating-linear-gradient(135deg,#FBFAF7,#FBFAF7 12px,#F4F2EC 12px,#F4F2EC 24px);
}
.map-box svg{width:26px;height:26px;stroke:var(--ink-2);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.map-box p{font-size:13.5px;color:var(--text-2);max-width:22em}

/* footer */
.site-footer{position:relative;background:var(--grad);color:#fff;margin-top:var(--sec);padding:64px 0 0;overflow:hidden}
.site-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 320px at 10% 0%,rgba(63,191,154,.2),transparent 70%);
}
.footer-inner{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo-main{color:#fff;font-size:17px}
.footer-brand .logo-sub{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:26em}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:24px;letter-spacing:.04em}
.footer-link{
  display:block;padding:7px 0;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-link:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;stroke:var(--mint-l);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  position:relative;z-index:2;margin-top:48px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.66);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13px;font-weight:600;
  transition:background .16s var(--ease),transform .16s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.to-top svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* mobile tabbar */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -10px rgba(14,58,50,.28);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr)}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:58px;padding:8px 2px;font-size:10.5px;color:var(--text-3);
  transition:color .16s var(--ease);
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.tab-item:hover{color:var(--ink-2)}
.tab-item.is-active{color:var(--ink);font-weight:600}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--ink-2);
}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .services-grid{grid-template-columns:1fr;gap:32px}
  .services-aside{position:static}
  .news-lead{grid-template-columns:1fr}
  .news-lead-media{min-height:0;aspect-ratio:16/9}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .case-card{flex-basis:calc((100% - 20px)/2.15)}
}
@media (max-width:767px){
  :root{--sec:var(--sec-m)}
  .main-nav{display:none}
  .header-inner{height:64px;gap:12px}
  .logo-main{font-size:14px}
  .logo-mark{width:32px;height:32px;border-radius:10px}
  .logo-sub{font-size:10px;letter-spacing:.14em}
  .header-cta{padding:9px 16px;font-size:13px;min-height:40px}
  .section-after-hero{padding-top:var(--sec-m)}
  .hero{padding:36px 0 16px}
  .hero-title{margin:18px 0 14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-badges{margin-bottom:0;margin-top:14px;gap:8px}
  .stat-pill{padding:10px 8px;border-radius:10px}
  .stat-pill .num{font-size:17px}
  .stat-pill .num em{font-size:11px}
  .stat-pill .lbl{font-size:10px;line-height:1.4}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .services-cards{grid-template-columns:1fr}
  .service-lead{grid-row:auto}
  .stats-band{padding:48px 0}
  .stats-grid{gap:14px}
  .stat-block{padding:18px}
  .case-card{flex-basis:86%}
  .case-viewport::after{width:44px}
  .news-row{grid-template-columns:1fr}
  .news-lead-body{padding:24px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .form-card,.info-card{padding:24px}
  .form-card .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .tabbar{display:block}
  .steps{padding-left:30px}
  .step::before{left:-25px}
}
@media (max-width:520px){
  .hero-mini{left:12px;right:12px;bottom:12px;padding:10px 14px}
  .hero-mini strong{font-size:12.5px}
  .hero-mini span{font-size:11px}
  .case-body{padding:16px}
  .info-row .v{font-size:14px}
}

/* roulang page: category1 */
:root{
  --ink:#0E3A32;
  --ink-2:#17624F;
  --ink-3:#2E9C7E;
  --mint:#3FBF9A;
  --mint-light:#6FE3B8;
  --amber:#F2A03D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --divider:#EDE9E1;
  --text:#16211E;
  --text-2:#52605B;
  --text-3:#8A938E;
  --success:#2E9E6B;
  --warn:#D98324;
  --danger:#C2452D;
  --info:#2C7A73;
  --grad-brand:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --grad-btn:linear-gradient(120deg,#17624F 0%,#2E9C7E 50%,#17624F 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-pill:999px;
  --sh-rest:0 1px 2px rgba(14,58,50,.06);
  --sh-hover:0 12px 28px -12px rgba(14,58,50,.28);
  --sh-float:0 24px 48px -20px rgba(14,58,50,.35);
  --container:1200px;
  --gap:clamp(16px,4vw,32px);
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:calc(84px + env(safe-area-inset-bottom));
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--gap);
  padding-right:var(--gap);
}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(246,244,239,.92);
  border-bottom:1px solid var(--line);
  transition:background .2s ease,box-shadow .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 6px 20px -16px rgba(14,58,50,.5);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
  transition:min-height .2s ease;
}
.site-header.is-scrolled .header-inner{min-height:60px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-height:44px;
}
.logo-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--grad-brand);
  color:#EAF7F1;
  box-shadow:var(--sh-rest);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:16px;font-weight:700;letter-spacing:0;color:var(--ink);}
.logo-sub{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.14em;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .16s ease,background .16s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:6px;
  height:3px;
  border-radius:3px;
  background:var(--ink-2);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(23,98,79,.06);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-position .35s ease,background-color .16s ease,border-color .16s ease,color .16s ease;
}
.btn-primary{
  color:#fff;
  background-image:var(--grad-btn);
  background-size:200% 100%;
  background-position:0 0;
  box-shadow:var(--sh-rest);
}
.btn-primary:hover{
  background-position:100% 0;
  transform:translateY(-2px);
  box-shadow:var(--sh-hover);
}
.btn-ghost{
  color:var(--ink);
  background:#fff;
  border-color:var(--line);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:var(--ink-2);
  box-shadow:var(--sh-hover);
}
.btn-light{
  color:var(--ink);
  background:#fff;
  border-color:rgba(255,255,255,.6);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-float);}
.btn-outline-light{
  color:#fff;
  background:transparent;
  border-color:rgba(255,255,255,.42);
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.header-cta{flex:0 0 auto;min-height:42px;padding:0 18px;font-size:14px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
  padding-top:20px;
}
.breadcrumb a{color:var(--text-2);transition:color .16s ease;}
.breadcrumb a:hover{color:var(--ink-2);}
.breadcrumb .sep{color:var(--divider);}
.breadcrumb .current{color:var(--text);max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(111,227,184,.20),transparent 70%),
    var(--grad-brand);
  color:#EAF7F1;
  padding-bottom:72px;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:rgba(255,255,255,.16);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:48px;
  align-items:center;
  padding-top:36px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.10);
  font-size:12.5px;
  letter-spacing:.06em;
  color:#DCF3EA;
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint-light);
  box-shadow:0 0 0 4px rgba(111,227,184,.22);
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
  color:#fff;
}
.page-hero h1 .hl{
  color:var(--mint-light);
}
.hero-lead{
  margin-top:18px;
  max-width:56ch;
  font-size:16px;
  line-height:1.85;
  color:rgba(234,247,241,.86);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:22px;
  font-size:13px;
  color:rgba(234,247,241,.72);
}
.hero-meta .tick{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{width:16px;height:16px;stroke:var(--mint-light);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.hero-visual{position:relative;}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16/11;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:var(--sh-float);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,58,50,0) 38%,rgba(14,58,50,.72) 100%);
}
.hero-float{
  position:absolute;
  left:18px;right:18px;bottom:18px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:rgba(246,244,239,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.5);
  color:var(--text);
  box-shadow:var(--sh-hover);
}
.hero-float .num{
  font-size:26px;
  font-weight:700;
  line-height:1;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.hero-float .cap{font-size:12.5px;line-height:1.5;color:var(--text-2);}
.hero-badges{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-top:44px;
}
.badge-card{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  color:#EAF7F1;
  transition:transform .16s ease,background .16s ease;
}
.badge-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.16);}
.badge-card .ic{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(111,227,184,.16);
  color:var(--mint-light);
  flex:0 0 auto;
}
.badge-card .ic svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.badge-card .v{font-size:20px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;}
.badge-card .l{font-size:12px;color:rgba(234,247,241,.7);line-height:1.4;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sect) 0;}
.section-sm{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.section-title{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
}
.section-desc{
  margin-top:12px;
  max-width:62ch;
  font-size:15px;
  color:var(--text-2);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  min-height:44px;
  transition:gap .16s ease,color .16s ease;
}
.text-link:hover{gap:10px;color:var(--ink);}

/* ---------- 锚点索引 + 纵向图文条 ---------- */
.split{
  display:grid;
  grid-template-columns:288px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.anchor-index{
  position:sticky;
  top:96px;
  padding:24px;
  border-radius:var(--r-lg);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--sh-rest);
}
.anchor-index h2{
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--text-3);
  margin-bottom:16px;
}
.anchor-list li + li{margin-top:4px;}
.anchor-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:6px 10px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text-2);
  transition:background .16s ease,color .16s ease,padding-left .16s ease;
}
.anchor-list a .idx{
  font-size:12px;
  font-weight:700;
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
  flex:0 0 auto;
}
.anchor-list a:hover{background:#FBFAF7;color:var(--ink);padding-left:14px;}
.anchor-note{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--divider);
  font-size:13px;
  color:var(--text-2);
  line-height:1.75;
}
.anchor-note strong{display:block;color:var(--ink);font-size:13.5px;margin-bottom:4px;}
.anchor-phone{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:10px;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.anchor-phone svg{width:16px;height:16px;fill:none;stroke:var(--ink-2);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}

.flow{display:flex;flex-direction:column;gap:32px;}
.flow-item{
  display:grid;
  grid-template-columns:minmax(0,.42fr) minmax(0,.58fr);
  gap:28px;
  padding:24px;
  border-radius:var(--r-lg);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--sh-rest);
  scroll-margin-top:96px;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D8D2C5;}
.flow-figure{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:4/3;
  background:rgba(14,58,50,.08);
}
.flow-figure img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.flow-item:hover .flow-figure img{transform:scale(1.04);}
.flow-figure .tag{
  position:absolute;
  left:12px;top:12px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  color:#0E3A32;
  background:rgba(246,244,239,.94);
  border:1px solid rgba(255,255,255,.6);
}
.flow-body h3{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink);
  display:flex;
  align-items:baseline;
  gap:10px;
}
.flow-body h3 .step{
  font-size:12px;
  font-weight:700;
  color:var(--amber);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.flow-body p{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.check-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:14px;height:14px;
  border-radius:5px;
  background:rgba(63,191,154,.16);
  box-shadow:inset 0 0 0 1px rgba(46,158,107,.5);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:4px;top:calc(.62em + 3px);
  width:6px;height:3px;
  border-left:1.8px solid var(--success);
  border-bottom:1.8px solid var(--success);
  transform:rotate(-45deg);
}

/* ---------- 状态提示条 ---------- */
.notice-band{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:20px;
  align-items:center;
  padding:22px 26px;
  border-radius:var(--r-md);
  background:#FBFAF7;
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
}
.notice-band p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.notice-band strong{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  border-radius:var(--r-md);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--sh-rest);
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item[open]{
  box-shadow:var(--sh-hover);
  border-left:3px solid var(--amber);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  min-height:56px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;
  width:22px;height:22px;
  flex:0 0 auto;
  border-radius:50%;
  border:1px solid var(--line);
  background:#FBFAF7;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--ink-2);
  transform:translate(-50%,-50%);
  border-radius:2px;
}
.faq-icon::before{width:10px;height:1.8px;}
.faq-icon::after{width:1.8px;height:10px;transition:opacity .2s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:rgba(242,160,61,.16);border-color:rgba(242,160,61,.5);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--grad-brand);
  color:#EAF7F1;
  border-radius:var(--r-lg);
  padding:48px;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(111,227,184,.22),transparent 68%);
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:#fff;
}
.cta-band p{
  margin-top:12px;
  max-width:60ch;
  font-size:15px;
  color:rgba(234,247,241,.86);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--grad-brand);
  color:rgba(234,247,241,.82);
  margin-top:var(--sect);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#fff;}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-sub{color:rgba(234,247,241,.6);}
.footer-brand p{font-size:14px;line-height:1.85;max-width:38ch;color:rgba(234,247,241,.78);}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:24px;
  letter-spacing:.02em;
}
.footer-link{
  display:block;
  font-size:14px;
  color:rgba(234,247,241,.78);
  padding:8px 0;
  min-height:38px;
  transition:color .16s ease,transform .16s ease;
}
.footer-link:hover{color:#fff;transform:translateX(3px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(234,247,241,.78);
  line-height:1.7;
  word-break:break-all;
}
.footer-contact svg{
  width:17px;height:17px;
  flex:0 0 auto;
  margin-top:4px;
  fill:none;
  stroke:var(--mint-light);
  stroke-width:1.75;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  padding:20px 0 calc(24px + env(safe-area-inset-bottom));
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(234,247,241,.66);
}
.footer-bottom .sep{opacity:.5;margin:0 8px;}
.to-top{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  color:#fff;
  cursor:pointer;
  transition:background .16s ease,transform .16s ease;
}
.to-top:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:200;
  display:none;
  grid-template-columns:repeat(5,1fr);
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -14px rgba(14,58,50,.4);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  min-height:56px;
  padding:6px 2px;
  font-size:10px;
  color:var(--text-3);
  transition:color .16s ease;
}
.mobile-tab a svg{
  width:22px;height:22px;
  fill:none;stroke:currentColor;
  stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;
}
.mobile-tab a.is-active{color:var(--ink-2);font-weight:700;}
.mobile-tab a.is-active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:26px;height:2px;
  border-radius:2px;
  background:var(--ink-2);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sect:72px;}
  .main-nav{gap:0;}
  .nav-link{padding:0 9px;font-size:13.5px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;}
  .hero-media{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:28px;}
  .anchor-index{position:static;}
  .anchor-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;}
  .flow-item{grid-template-columns:1fr;}
  .flow-figure{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-grid{grid-template-columns:1fr;}
  .header-cta{display:none;}
}
@media (max-width:768px){
  :root{--sect:56px;}
  body{padding-bottom:calc(84px + env(safe-area-inset-bottom));}
  .main-nav{display:none;}
  .header-inner{min-height:64px;}
  .site-header.is-scrolled .header-inner{min-height:58px;}
  .mobile-tab{display:grid;}
  .hero-badges{grid-template-columns:1fr;}
  .badge-card{justify-content:flex-start;}
  .page-hero{padding-bottom:48px;}
  .hero-grid{padding-top:20px;}
  .hero-float{left:12px;right:12px;bottom:12px;padding:12px 14px;}
  .hero-float .num{font-size:22px;}
  .flow-item{padding:18px;}
  .flow-body h3{font-size:18px;}
  .anchor-list{grid-template-columns:1fr;}
  .notice-band{grid-template-columns:1fr;padding:18px 20px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-answer{padding:0 18px 18px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .footer-title{margin-bottom:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:520px){
  .logo-main{font-size:14.5px;}
  .logo-sub{font-size:10px;}
  .logo-mark{width:30px;height:30px;border-radius:10px;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:8px 14px;font-size:12px;}
  .cta-actions .btn{width:100%;}
  .breadcrumb{font-size:12px;}
  .check-list li{font-size:14px;}
}

/* roulang page: article */
:root{
  --ink:#0E3A32;
  --ink-700:#17624F;
  --ink-600:#2E9C7E;
  --mint:#3FBF9A;
  --mint-light:#6FE3B8;
  --amber:#F2A03D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --divider:#EDE9E1;
  --text:#16211E;
  --text-2:#52605B;
  --text-3:#8A938E;
  --success:#2E9E6B;
  --warn:#D98324;
  --error:#C2452D;
  --info:#2C7A73;
  --grad:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,58,50,.06);
  --sh-2:0 12px 28px -12px rgba(14,58,50,.28);
  --sh-3:0 24px 48px -20px rgba(14,58,50,.35);
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px)}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  border-bottom:1px solid var(--line);
  transition:background .18s ease,box-shadow .18s ease;
  backdrop-filter:saturate(160%) blur(8px);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
}
.site-header.is-shrink{box-shadow:0 8px 24px -18px rgba(14,58,50,.5);background:rgba(246,244,239,.86)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .18s ease}
.site-header.is-shrink .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -10px rgba(14,58,50,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-main{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.logo-sub{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
  transition:color .16s ease,background .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:3px;border-radius:3px;
  background:var(--ink-700);transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(23,98,79,.06)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{flex:0 0 auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background-position .35s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{
  color:#fff;background-image:var(--grad);background-size:200% 100%;background-position:0 0;
  box-shadow:0 8px 20px -14px rgba(14,58,50,.9);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--card);color:var(--ink);border-color:var(--line);
  box-shadow:var(--sh-1);
}
.btn-ghost:hover{border-color:var(--ink-700);color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn[disabled],.btn.is-disabled{opacity:.48;box-shadow:none;pointer-events:none}

/* ---------- main ---------- */
.page-main{padding-top:clamp(20px,3vw,32px);padding-bottom:clamp(56px,7vw,96px)}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2);transition:color .16s ease}
.breadcrumb a:hover{color:var(--ink-700)}
.breadcrumb .sep{color:#C6C1B6}
.breadcrumb .current{
  color:var(--text-2);max-width:min(52vw,360px);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- article head ---------- */
.article-head{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,3.4vw,40px);box-shadow:var(--sh-1);
  position:relative;overflow:hidden;
}
.article-head::after{
  content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,191,154,.18),rgba(63,191,154,0) 68%);
  pointer-events:none;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  min-height:28px;padding:3px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.4px;
  background:rgba(23,98,79,.08);color:var(--ink-700);
  border:1px solid rgba(23,98,79,.14);
}
.chip-amber{background:rgba(242,160,61,.14);color:#8A5512;border-color:rgba(242,160,61,.3)}
.article-title{
  font-size:clamp(26px,3.6vw,42px);line-height:1.28;font-weight:700;color:var(--ink);
  margin:16px 0 0;letter-spacing:0;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:20px;font-size:13px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:15px;height:15px;stroke:var(--text-3)}
.article-meta .bar{width:1px;height:12px;background:var(--divider)}
.article-meta .meta-cat{color:var(--ink-700);font-weight:600}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 224px;gap:48px;
  align-items:start;width:100%;max-width:1080px;margin:32px auto 0;
  padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px);
}
.article-shell{min-width:0;max-width:760px}

/* ---------- toc ---------- */
.toc-aside{position:sticky;top:96px}
.toc-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:16px 18px;
}
.toc-box summary{
  cursor:pointer;font-size:13.5px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:28px;list-style:none;
}
.toc-box summary::-webkit-details-marker{display:none}
.toc-box summary::after{
  content:"";width:8px;height:8px;border-right:1.75px solid var(--text-3);border-bottom:1.75px solid var(--text-3);
  transform:rotate(45deg);transition:transform .18s ease;margin-left:auto;
}
.toc-box[open] summary::after{transform:rotate(-135deg)}
.toc-list{margin-top:12px;display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--divider);padding-top:10px}
.toc-link{
  display:block;font-size:13px;line-height:1.5;color:var(--text-2);
  padding:6px 8px;border-radius:8px;border-left:2px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.toc-link.toc-sub{padding-left:20px;font-size:12.5px;color:var(--text-3)}
.toc-link:hover{background:#FBFAF7;color:var(--ink-700);border-left-color:var(--mint)}

/* ---------- article body ---------- */
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(22px,3.4vw,44px);box-shadow:var(--sh-1);
  font-size:16px;line-height:1.85;color:var(--text);overflow-wrap:break-word;
}
.article-body p{margin:0 0 1.1em}
.article-body p:last-child{margin-bottom:0}
.article-body h2{
  font-size:clamp(20px,2.4vw,27px);line-height:1.35;color:var(--ink);font-weight:700;
  margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--ink-700);
  scroll-margin-top:96px;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{
  font-size:19px;line-height:1.5;color:var(--ink);font-weight:600;
  margin:1.7em 0 .6em;padding-left:16px;position:relative;scroll-margin-top:96px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:2px;background:var(--mint);
}
.article-body h4{font-size:17px;color:var(--ink);margin:1.4em 0 .5em}
.article-body a{color:var(--ink-700);border-bottom:1px solid rgba(23,98,79,.28);transition:border-color .16s ease,color .16s ease}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--ink)}
.article-body strong{font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.55em;color:var(--text)}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 0 3px rgba(63,191,154,.16);
}
.article-body ol{counter-reset:li}
.article-body ol li{padding-left:28px}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.28em;width:20px;height:20px;border-radius:6px;
  background:rgba(23,98,79,.09);color:var(--ink-700);
  font-size:12px;font-weight:700;line-height:20px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:#FBF7EC;border-left:3px solid var(--amber);color:var(--ink);
}
.article-body blockquote p{margin:0;font-size:15.5px;line-height:1.8;color:#41504B}
.article-body img{border-radius:16px;margin:1.6em auto;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;line-height:1.6;
}
.article-body hr{border:none;border-top:1px solid var(--divider);margin:2em 0}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-sm);margin:1.6em 0;background:var(--card)}
.table-wrap table{width:100%;border-collapse:collapse;min-width:520px;font-size:14.5px}
.table-wrap th,.table-wrap td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--divider);line-height:1.7}
.table-wrap thead th{background:#F3F1EA;color:var(--ink);font-weight:600;white-space:nowrap}
.table-wrap tbody tr:nth-child(even){background:#FBFAF7}
.table-wrap tbody tr:last-child td{border-bottom:none}
.article-body code{
  background:#F1EFE8;color:var(--ink-700);padding:2px 6px;border-radius:6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- empty state ---------- */
.empty-state{text-align:center;padding:clamp(32px,5vw,64px) 24px}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:rgba(23,98,79,.08);color:var(--ink-700);
  display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-icon svg{width:28px;height:28px}
.empty-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px}
.empty-desc{font-size:15px;color:var(--text-2);max-width:420px;margin:0 auto 24px}

/* ---------- tags ---------- */
.tag-block{max-width:760px;margin:24px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-block .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;min-height:32px;padding:4px 14px;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--line);color:var(--text-2);
  font-size:13px;transition:color .16s ease,border-color .16s ease,transform .16s ease,background .16s ease;
}
.tag:hover{color:var(--ink-700);border-color:var(--ink-700);transform:translateY(-2px);background:#FBFAF7}

/* ---------- related ---------- */
.section{margin-top:clamp(40px,6vw,72px)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-title{font-size:clamp(20px,2.4vw,28px);line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:0}
.section-desc{font-size:14px;color:var(--text-2);margin-top:8px;max-width:620px}
.more-link{font-size:14px;font-weight:600;color:var(--ink-700);display:inline-flex;align-items:center;gap:6px;transition:gap .16s ease,color .16s ease}
.more-link:hover{gap:10px;color:var(--ink)}
.more-link svg{width:15px;height:15px}

.related-list{display:flex;flex-direction:column;gap:14px}
.related-card{
  display:grid;grid-template-columns:168px minmax(0,1fr);gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px;box-shadow:var(--sh-1);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D7D2C6}
.related-thumb{
  position:relative;width:100%;aspect-ratio:4 / 3;border-radius:var(--r-xs);overflow:hidden;
  background:rgba(14,58,50,.08);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,58,50,0) 40%,rgba(14,58,50,.55) 100%);
}
.related-body{min-width:0}
.related-cat{font-size:12px;font-weight:600;color:var(--amber);letter-spacing:.4px}
.related-title{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink);margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-excerpt{
  font-size:13.5px;color:var(--text-2);line-height:1.7;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-meta{font-size:12px;color:var(--text-3);margin-top:10px;display:flex;align-items:center;gap:8px}
.related-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6C1B6}

/* ---------- prev next ---------- */
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:760px;margin:32px auto 0}
.pn-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D7D2C6}
.pn-label{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:6px}
.pn-label svg{width:14px;height:14px}
.pn-title{font-size:15.5px;font-weight:600;color:var(--ink);margin-top:8px;line-height:1.5}
.pn-card.next{text-align:right}
.pn-card.next .pn-label{justify-content:flex-end}

/* ---------- cta ---------- */
.cta-band{
  margin-top:clamp(40px,6vw,72px);
  border-radius:var(--r-lg);background-image:var(--grad);background-size:cover;background-position:center;
  color:#fff;padding:clamp(26px,4vw,44px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;background:rgba(14,58,50,.18);pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-title{font-size:clamp(20px,2.4vw,28px);line-height:1.4;font-weight:700;letter-spacing:0}
.cta-text{font-size:14.5px;color:rgba(255,255,255,.82);margin-top:10px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-primary{background-image:linear-gradient(135deg,#F2A03D 0%,#E08B22 100%);color:#22160A;box-shadow:0 12px 26px -16px rgba(0,0,0,.6)}
.cta-band .btn-primary:hover{filter:brightness(1.04)}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);box-shadow:none}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background-image:var(--grad);background-size:cover;color:#fff;
  padding:clamp(40px,5vw,64px) 0 0;
  padding-bottom:env(safe-area-inset-bottom);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.62)}
.footer-brand .logo-mark{background:rgba(255,255,255,.16);box-shadow:none;color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-top:16px;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:24px;letter-spacing:.4px}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.74);padding:6px 0;transition:color .16s ease,transform .16s ease}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:12px;line-height:1.6}
.footer-contact svg{width:17px;height:17px;flex:0 0 17px;margin-top:3px;stroke:rgba(255,255,255,.7)}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:20px;padding-bottom:24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-tech{font-size:12.5px;color:rgba(255,255,255,.5)}
.back-top{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);color:#fff;
  transition:background .16s ease,transform .16s ease;
}
.back-top:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
.back-top svg{width:18px;height:18px}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none}
@media (max-width:767px){
  .mobile-tabbar{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -18px rgba(14,58,50,.55);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-height:56px;padding:8px 2px 6px;font-size:10px;color:var(--text-3);
    transition:color .16s ease;
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor}
  .tab-item.is-active{color:var(--ink-700);font-weight:600}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;border-radius:2px;background:var(--ink-700);
  }
  body{padding-bottom:84px}
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .main-nav{display:none}
  .header-cta{margin-left:auto}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:24px;max-width:760px}
  .toc-aside{position:static;order:-1;top:auto}
  .article-shell{max-width:100%}
  .prev-next{max-width:100%}
  .tag-block{max-width:100%}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
}
@media (max-width:767px){
  .article-head{padding:22px}
  .article-body{padding:22px 20px;font-size:15.5px;line-height:1.85}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .related-card{grid-template-columns:112px minmax(0,1fr);gap:12px;padding:12px}
  .related-title{font-size:15px}
  .related-excerpt{display:none}
  .prev-next{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .pn-card.next .pn-label{justify-content:flex-start}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-title{margin-bottom:14px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .header-cta{display:none}
  .logo-main{font-size:15px}
  .article-title{font-size:24px}
  .article-meta{gap:8px 10px}
  .article-body h2{margin-top:1.7em}
  .article-body ul li,.article-body ol li{margin-bottom:.5em}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category3 */
:root{
  --ink:#0E3A32;
  --ink-2:#17624F;
  --mint:#3FBF9A;
  --mint-soft:#6FE3B8;
  --amber:#F2A03D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --divider:#EDE9E1;
  --text:#16211E;
  --sub:#52605B;
  --muted:#8A938E;
  --success:#2E9E6B;
  --warn:#D98324;
  --error:#C2452D;
  --info:#2C7A73;
  --grad:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --grad-soft:linear-gradient(180deg,rgba(255,255,255,0) 0%,rgba(14,58,50,.72) 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-1:0 1px 2px rgba(14,58,50,.06);
  --sh-2:0 12px 28px -12px rgba(14,58,50,.28);
  --sh-3:0 24px 48px -20px rgba(14,58,50,.35);
  --sec:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px);}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-position .35s ease-out,background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{
  color:#fff;background:var(--grad);background-size:200% 100%;background-position:0 0;
  box-shadow:var(--sh-2);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1);
}
.btn-ghost:hover{border-color:var(--mint);color:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--sh-2);}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.8);transform:translateY(-2px);}
.btn:disabled,.btn.is-disabled{opacity:.48;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--divider);
  transition:background .2s ease,box-shadow .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 6px 20px -14px rgba(14,58,50,.45);
}
.header-inner{
  min-height:72px;display:flex;align-items:center;gap:24px;
  transition:min-height .2s ease;
}
.site-header.is-scrolled .header-inner{min-height:60px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad);color:#fff;box-shadow:var(--sh-1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0;}
.logo-sub{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;font-size:15px;font-weight:500;color:var(--sub);
  border-radius:10px;transition:color .16s ease,background-color .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--ink-2),var(--mint));
  transform:scaleX(0);transform-origin:left center;transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:rgba(63,191,154,.10);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-cta{flex:none;padding:0 22px;min-height:42px;font-size:14px;}

/* ---------- 页面 Banner ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--grad);color:#fff;
  padding:clamp(40px,6vw,76px) 0 clamp(56px,7vw,88px);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.20;mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,227,184,.30) 0%,rgba(111,227,184,0) 70%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .16s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--mint-soft);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:2px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  color:#EAF7F1;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(242,160,61,.22);}
.page-hero h1{
  font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:0;
  max-width:760px;
}
.page-hero h1 em{font-style:normal;color:var(--mint-soft);}
.hero-lead{
  margin-top:20px;max-width:720px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px;
  font-size:13px;color:rgba(255,255,255,.78);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{width:15px;height:15px;stroke:var(--mint-soft);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:2px;font-weight:600;color:var(--ink-2);
  padding:5px 12px;border-radius:999px;background:rgba(63,191,154,.14);margin-bottom:16px;
}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;color:var(--ink);}
.section-desc{margin-top:14px;color:var(--sub);font-size:15px;line-height:1.85;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-2);
  padding:8px 2px;border-bottom:2px solid rgba(63,191,154,.45);transition:border-color .16s ease,color .16s ease,gap .16s ease;
}
.link-more:hover{color:var(--ink);border-color:var(--ink);gap:11px;}

/* ---------- 瀑布图卡网格 ---------- */
.masonry{
  column-count:3;
  column-gap:24px;
}
.m-card{
  display:inline-block;width:100%;
  break-inside:avoid;page-break-inside:avoid;
  margin:0 0 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C4;}
.m-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(14,58,50,.08);}
.m-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.m-card:hover .m-media img{transform:scale(1.04);}
.m-media::after{content:"";position:absolute;inset:0;background:var(--grad-soft);opacity:.55;transition:opacity .3s ease;}
.m-card:hover .m-media::after{opacity:.78;}
.m-badge{
  position:absolute;left:16px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;color:#fff;
  background:rgba(14,58,50,.62);border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(4px);
}
.m-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--mint-soft);}
.m-body{padding:24px;}
.m-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);}
.m-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--sub);}
.m-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:500;color:var(--ink-2);
  background:rgba(63,191,154,.12);border:1px solid rgba(63,191,154,.24);
  font-variant-numeric:tabular-nums;
}
.tag--amber{color:#8A5A12;background:rgba(242,160,61,.16);border-color:rgba(242,160,61,.34);}
.m-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--divider);
  font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.m-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;flex:none;
  background:var(--grad);color:#fff;margin-bottom:18px;
}
.m-icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.m-card--plain{background:#FBFAF7;}

/* ---------- 深色信息面板 ---------- */
.spec-section{padding:0 0 var(--sec);}
.spec-panel{
  position:relative;overflow:hidden;
  background:var(--grad);color:#fff;
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,48px);
  box-shadow:var(--sh-3);
}
.spec-panel::after{
  content:"";position:absolute;left:-80px;bottom:-140px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,160,61,.22) 0%,rgba(242,160,61,0) 70%);
}
.spec-head{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.spec-head h2{font-size:clamp(21px,2.4vw,28px);line-height:1.4;font-weight:700;}
.spec-head p{color:rgba(255,255,255,.78);font-size:14px;max-width:520px;margin-top:10px;}
.spec-state{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  font-size:12px;font-weight:600;color:#0E3A32;background:var(--mint-soft);
}
.spec-state .dot{width:7px;height:7px;border-radius:50%;background:#0E3A32;}
.spec-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
}
.spec-item{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-md);padding:20px;
}
.spec-label{font-size:12px;letter-spacing:1.5px;color:rgba(255,255,255,.7);}
.spec-value{
  margin-top:8px;font-size:24px;font-weight:700;line-height:1.2;
  color:var(--mint-soft);font-variant-numeric:tabular-nums;
}
.spec-note{margin-top:10px;font-size:13px;color:rgba(255,255,255,.76);line-height:1.7;font-variant-numeric:tabular-nums;}
.spec-hash{
  margin-top:26px;position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:10px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18);
}
.spec-hash span{
  font-size:12px;padding:5px 12px;border-radius:999px;color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  font-variant-numeric:tabular-nums;
}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C4;}
.step::before{
  content:"";position:absolute;top:0;left:24px;width:44px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--amber),rgba(242,160,61,.15));
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:13px;font-size:15px;font-weight:700;
  color:#fff;background:var(--grad);font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);}
.step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--sub);}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:rgba(63,191,154,.5);border-left:3px solid var(--amber);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{background:#FBFAF7;}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:rgba(63,191,154,.14);color:var(--ink-2);transition:transform .22s ease,background-color .18s ease;
}
.faq-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.1;stroke-linecap:round;}
.faq-item.is-open .faq-icon{background:rgba(242,160,61,.2);color:#8A5A12;transform:rotate(135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--sub);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);color:#fff;border-radius:var(--r-lg);
  padding:clamp(32px,5vw,56px);
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;right:-100px;top:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,227,184,.28) 0%,rgba(111,227,184,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-title{font-size:clamp(21px,2.6vw,30px);line-height:1.4;font-weight:700;max-width:640px;}
.cta-text{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad);color:rgba(255,255,255,.82);margin-top:var(--sec);}
.footer-inner{padding:clamp(40px,6vw,64px) 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.55);}
.footer-brand .logo-mark{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.5px;}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.72);padding:7px 0;
  transition:color .16s ease,transform .16s ease;
}
.footer-link:hover{color:#fff;transform:translateX(3px);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;padding:7px 0;color:rgba(255,255,255,.76);}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:5px;fill:none;stroke:var(--mint-soft);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.62);
}
.to-top{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#fff;
  transition:background-color .16s ease,transform .16s ease;
}
.to-top:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -14px rgba(14,58,50,.35);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab ul{display:flex;align-items:stretch;justify-content:space-around;}
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;min-height:58px;padding:6px 2px;font-size:10px;font-weight:500;color:var(--muted);
  transition:color .16s ease;
}
.tab-item svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .18s ease;
}
.tab-item.is-active{color:var(--ink-2);font-weight:700;}
.tab-item.is-active::before{transform:translateX(-50%) scaleX(1);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  :root{--sec:84px;}
}
@media (max-width:1024px){
  :root{--sec:72px;}
  .main-nav{gap:0;}
  .nav-link{padding:0 9px;font-size:14px;}
  .masonry{column-count:2;}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .header-cta{display:none;}
  .hero-actions .btn{flex:1 1 auto;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .main-nav{display:none;}
  .header-inner{min-height:64px;}
  .btn{min-height:48px;padding:0 22px;}
  .masonry{column-count:1;}
  .m-body{padding:20px;}
  .page-hero{padding:32px 0 48px;}
  .hero-lead{font-size:15px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .mobile-tab{display:block;}
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom));}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  .spec-grid{grid-template-columns:1fr;}
  .logo-main{font-size:15px;}
  .logo-sub{font-size:10px;letter-spacing:1.4px;}
  .m-tags{gap:6px;}
}

/* roulang page: category2 */
:root{
  --ink:#0E3A32;
  --ink-2:#17624F;
  --mint:#3FBF9A;
  --mint-l:#6FE3B8;
  --amber:#F2A03D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --divider:#EDE9E1;
  --text:#16211E;
  --text-2:#52605B;
  --text-3:#8A938E;
  --success:#2E9E6B;
  --warn:#D98324;
  --error:#C2452D;
  --info:#2C7A73;
  --grad:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(14,58,50,.06);
  --sh-2:0 12px 28px -12px rgba(14,58,50,.28);
  --sh-3:0 24px 48px -20px rgba(14,58,50,.35);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0;line-height:1.35}
p{margin:0}
figure{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:var(--sp-section) 0}
.section-alt{background:#FBFAF7;border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--ink-2);
  background:rgba(63,191,154,.14);
  border:1px solid rgba(63,191,154,.3);
  padding:6px 14px;border-radius:var(--pill);
}
.section-head{max-width:660px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.35;margin:14px 0 12px;color:var(--ink)}
.section-sub{font-size:16px;line-height:1.85;color:var(--text-2)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--divider);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(14,58,50,.4);background:rgba(246,244,239,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  display:grid;place-items:center;
  background:var(--grad);color:#fff;
  box-shadow:0 6px 14px -8px rgba(14,58,50,.6);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0;white-space:nowrap}
.logo-sub{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:10px 13px;border-radius:var(--pill);
  font-size:15px;color:var(--text-2);
  transition:color .16s ease,background .16s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:#FBFAF7}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;
  height:3px;border-radius:3px;background:var(--mint);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  background-size:200% 100%;background-position:0 0;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-position .3s ease,color .16s ease,border-color .16s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 0;box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--mint);color:var(--ink-2);box-shadow:var(--sh-2)}
.btn-amber{background:var(--amber);color:#231404;box-shadow:0 12px 26px -14px rgba(242,160,61,.9)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(242,160,61,.75)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-light:hover{transform:translateY(-2px);background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.75)}
.header-cta{flex:none}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:40px 0 84px;
  background:
    radial-gradient(110% 90% at 100% 0%,#E9F4EF 0%,rgba(246,244,239,0) 62%),
    radial-gradient(80% 70% at 0% 100%,#F1EFE8 0%,rgba(246,244,239,0) 60%);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);min-height:44px}
.breadcrumb a{color:var(--text-2);transition:color .16s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb span{color:#C3CBC7}
.breadcrumb em{font-style:normal;color:var(--ink);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center;margin-top:20px}
.hero-copy h1{
  font-size:clamp(28px,3.8vw,42px);
  line-height:1.25;
  color:var(--ink);
  margin:18px 0 16px;
  letter-spacing:0;
}
.hero-copy h1 mark{background:linear-gradient(180deg,rgba(242,160,61,0) 62%,rgba(242,160,61,.32) 62%);color:inherit;padding:0 2px}
.lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:22px;font-size:14px;color:var(--text-2)}
.hero-facts li{display:inline-flex;align-items:center;gap:8px}
.hero-facts svg{width:16px;height:16px;flex:none;stroke:var(--mint);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative}
.hero-figure{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
  aspect-ratio:16/9;
  background:rgba(14,58,50,.08);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.hero-figure:hover img{transform:scale(1.04)}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,58,50,0) 40%,rgba(14,58,50,.72) 100%);
  pointer-events:none;
}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.94);
  border:1px solid rgba(255,255,255,.6);
  border-radius:var(--r-sm);
  padding:12px 16px;
  box-shadow:var(--sh-2);
  z-index:2;
}
.hero-float .pulse{
  width:10px;height:10px;border-radius:50%;flex:none;
  background:var(--mint);
  box-shadow:0 0 0 4px rgba(63,191,154,.22);
}
.hero-float strong{display:block;font-size:14px;color:var(--ink);line-height:1.4}
.hero-float span{display:block;font-size:12px;color:var(--text-3);line-height:1.5}

/* ---------- 编号阶梯 ---------- */
.ladder{position:relative;display:grid;gap:22px;margin-top:8px}
.ladder::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--mint) 0%,rgba(63,191,154,.18) 100%);
}
.ladder-item{display:grid;grid-template-columns:56px 1fr;gap:22px;align-items:start;position:relative}
.ladder-num{
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--card);border:1px solid var(--line);
  font-size:17px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);position:relative;z-index:1;
  transition:border-color .16s ease,color .16s ease,box-shadow .16s ease;
}
.ladder-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease;
}
.ladder-item:hover .ladder-card{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE7DE}
.ladder-item:hover .ladder-num{border-color:var(--mint);color:var(--ink-2);box-shadow:var(--sh-2)}
.ladder-card h3{font-size:19px;color:var(--ink);margin-bottom:8px}
.ladder-card p{font-size:15px;line-height:1.8;color:var(--text-2)}
.ladder-meta{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:14px;font-size:12px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.ladder-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}

/* ---------- 勾选清单 ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(28px,4vw,56px);align-items:start}
.split-copy h2{font-size:clamp(22px,2.6vw,32px);color:var(--ink);margin:14px 0 14px;line-height:1.35}
.split-copy p{font-size:16px;line-height:1.85;color:var(--text-2)}
.split-figure{
  margin-top:26px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);aspect-ratio:4/3;background:rgba(14,58,50,.08);
}
.split-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.split-figure:hover img{transform:scale(1.04)}
.checklist{display:grid;gap:14px}
.check-item{
  display:grid;grid-template-columns:40px 1fr;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease,background .16s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE7DE;background:#FDFCFA}
.check-icon{
  width:40px;height:40px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  background:rgba(63,191,154,.14);color:var(--ink-2);
}
.check-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.check-item h3{font-size:16px;color:var(--ink);margin-bottom:4px}
.check-item p{font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- 深色风险面板 ---------- */
.panel{
  background:radial-gradient(120% 140% at 0% 0%,#17624F 0%,#0E3A32 55%,#0A2A24 100%);
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.12);
  padding:clamp(24px,4vw,48px);
  color:#fff;
  box-shadow:var(--sh-3);
}
.panel-head{max-width:620px;margin-bottom:28px}
.panel-head .eyebrow{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.24);color:#DFF4EC}
.panel-head h2{font-size:clamp(22px,2.6vw,30px);margin:14px 0 10px;color:#fff}
.panel-head p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.74)}
.risk-list{display:grid}
.risk-row{
  display:grid;grid-template-columns:14px minmax(0,1fr) auto;
  gap:16px;align-items:start;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.14);
  transition:background .16s ease;
}
.risk-row:first-child{border-top:0}
.risk-row:hover{background:rgba(255,255,255,.04)}
.risk-dot{
  width:10px;height:10px;border-radius:50%;margin-top:8px;
  background:var(--amber);box-shadow:0 0 0 4px rgba(242,160,61,.18);
}
.risk-main h3{font-size:16px;color:#fff;margin-bottom:4px}
.risk-main p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.7)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:var(--pill);
  white-space:nowrap;
}
.tag-mint{background:rgba(111,227,184,.16);color:#9BEFCD;border:1px solid rgba(111,227,184,.32)}
.tag-amber{background:rgba(242,160,61,.16);color:#F7C88A;border:1px solid rgba(242,160,61,.34)}
.tag-plain{background:rgba(255,255,255,.1);color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.2)}
.panel-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;margin-top:28px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.panel-stat strong{
  display:block;font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.panel-stat span{display:block;font-size:12px;color:rgba(255,255,255,.62);margin-top:4px}
.meter{height:6px;border-radius:var(--pill);background:rgba(255,255,255,.14);overflow:hidden;margin-top:12px}
.meter i{display:block;height:100%;border-radius:var(--pill);background:linear-gradient(90deg,var(--mint-l),var(--mint))}

/* ---------- 承诺卡与数据带 ---------- */
.promise-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.promise-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease;
}
.promise-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE7DE}
.promise-icon{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;margin-bottom:18px;
  background:rgba(14,58,50,.06);color:var(--ink-2);
}
.promise-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.promise-card h3{font-size:18px;color:var(--ink);margin-bottom:8px}
.promise-card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:28px}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px 22px;box-shadow:var(--sh-1);
}
.stat strong{
  display:block;font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.15;
}
.stat strong em{font-style:normal;color:var(--amber)}
.stat span{display:block;font-size:12px;color:var(--text-3);margin-top:6px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);overflow:hidden;position:relative;
  transition:box-shadow .16s ease,border-color .16s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--amber);opacity:0;transition:opacity .16s ease;
}
.faq-item.is-open{border-color:#CFE7DE;box-shadow:var(--sh-2)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:18px 22px;
  background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-sign{
  width:22px;height:22px;flex:none;position:relative;
  border-radius:50%;border:1px solid var(--line);
  transition:transform .2s ease,border-color .16s ease,background .16s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:10px;height:2px}
.faq-sign::after{width:2px;height:10px;transition:opacity .2s ease}
.faq-item.is-open .faq-sign{transform:rotate(180deg);background:rgba(63,191,154,.14);border-color:rgba(63,191,154,.5)}
.faq-item.is-open .faq-sign::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--grad);color:#fff;padding:clamp(40px,5vw,64px) 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);color:#fff;margin-bottom:10px}
.cta-inner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad);color:#fff}
.footer-inner{padding:64px 0 36px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .logo-mark{background:rgba(255,255,255,.16);box-shadow:none}
.site-footer .logo-main{color:#fff}
.site-footer .logo-sub{color:rgba(255,255,255,.6)}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin-top:16px;max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:24px}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:7px 0;transition:color .16s ease,transform .16s ease;
}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.footer-contact{display:grid;gap:12px;font-size:14px;color:rgba(255,255,255,.78)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px}
.footer-contact svg{
  width:18px;height:18px;flex:none;margin-top:4px;
  stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 calc(28px + env(safe-area-inset-bottom));
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:16px}
.to-top{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  transition:background .16s ease,transform .16s ease;
}
.to-top:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -12px rgba(14,58,50,.35);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  flex:1 1 0;min-width:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:56px;padding:6px 2px;
  font-size:10px;font-weight:500;color:var(--text-3);position:relative;
  transition:color .16s ease;
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.mobile-tab a.is-active{color:var(--ink);font-weight:700}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--mint);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sp-section:72px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy h1{max-width:760px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-figure{max-width:560px}
  .promise-grid{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-link{padding:10px 9px;font-size:14px}
  .logo-main{font-size:15px}
}
@media (max-width:860px){
  .main-nav{display:none}
  .header-cta{margin-left:auto}
  .mobile-tab{display:flex}
  body{padding-bottom:80px}
  .hero-float{position:static;margin-top:14px;left:auto;right:auto;bottom:auto}
  .hero-figure::after{background:linear-gradient(180deg,rgba(14,58,50,0) 55%,rgba(14,58,50,.5) 100%)}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .page-hero{padding:24px 0 56px}
  .hero-copy h1{font-size:clamp(26px,6.4vw,34px)}
  .lead{font-size:16px}
  .ladder::before{left:23px}
  .ladder-item{grid-template-columns:48px 1fr;gap:16px}
  .ladder-num{width:48px;height:48px;font-size:15px}
  .ladder-card{padding:20px}
  .promise-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px}
  .panel-stats{grid-template-columns:1fr;gap:18px}
  .risk-row{grid-template-columns:14px minmax(0,1fr);gap:12px}
  .risk-row .tag{grid-column:2;justify-self:start;margin-top:8px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 160px}
  .footer-inner{padding:44px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-title{margin-bottom:14px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .hero-facts{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .logo-main{font-size:14px}
  .logo-sub{display:none}
  .header-inner{gap:12px}
  .header-cta{padding:0 16px;font-size:14px}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr}
  .footer-bottom{font-size:12px}
  .breadcrumb em{max-width:52vw}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --ink:#0E3A32;
  --ink-2:#17624F;
  --ink-3:#2E9C7E;
  --mint:#3FBF9A;
  --mint-l:#6FE3B8;
  --amber:#F2A03D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --divider:#EDE9E1;
  --text:#16211E;
  --text-2:#52605B;
  --text-3:#8A938E;
  --success:#2E9E6B;
  --warn:#D98324;
  --error:#C2452D;
  --info:#2C7A73;
  --brand-grad:linear-gradient(135deg,#0E3A32 0%,#17624F 55%,#2E9C7E 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,58,50,.06);
  --shadow-2:0 12px 28px -12px rgba(14,58,50,.28);
  --shadow-3:0 24px 48px -20px rgba(14,58,50,.35);
  --space-1:24px;
  --space-2:32px;
  --space-3:48px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--divider);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -16px rgba(14,58,50,.5);background:rgba(246,244,239,.94)}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:var(--header-h);
  transition:height .18s ease;
}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;min-height:44px}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;flex-shrink:0;
  box-shadow:0 6px 14px -8px rgba(14,58,50,.6);
}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-main{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0}
.logo-sub{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .16s ease,background .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:3px;border-radius:3px;
  background:var(--ink);transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:#FBFAF7}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{flex-shrink:0;min-height:44px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .16s ease,box-shadow .16s ease,background-position .32s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn svg{width:18px;height:18px;stroke-width:1.75}
.btn-primary{
  color:#fff;background:var(--brand-grad);background-size:190% 100%;background-position:0 0;
  box-shadow:0 8px 20px -12px rgba(14,58,50,.7);
}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 0;box-shadow:0 14px 28px -14px rgba(14,58,50,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.06)}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.7)}
.btn-outline{color:var(--ink);border-color:var(--line);background:#fff}
.btn-outline:hover{transform:translateY(-2px);border-color:var(--mint);box-shadow:var(--shadow-2)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.48;box-shadow:none;pointer-events:none}

/* ---------- 面包屑 ---------- */
.crumbs{padding:20px 0 0}
.crumb-list{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--text-3)}
.crumb-list a{color:var(--text-2);transition:color .16s ease}
.crumb-list a:hover{color:var(--ink)}
.crumb-list .sep{color:#C9C4B8}
.crumb-list .current{color:var(--ink);font-weight:600;max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--brand-grad);
  padding:clamp(36px,4.4vw,56px) 0 clamp(88px,8vw,104px);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,227,184,.28),transparent 68%);pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,4vw,56px);align-items:center}
.eyebrow-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.1);
  font-size:12px;font-weight:600;letter-spacing:.04em;color:#EAF6F1;
}
.eyebrow-tag i{width:6px;height:6px;border-radius:50%;background:var(--mint-l);display:block}
.page-hero h1{
  margin:18px 0 0;
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:0;
}
.page-hero h1 em{
  font-style:normal;color:var(--amber);
  box-shadow:inset 0 -.34em 0 rgba(242,160,61,.24);
}
.hero-lead{margin-top:16px;max-width:34em;color:rgba(255,255,255,.84);font-size:15.5px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{
  display:flex;align-items:center;gap:8px;margin-top:18px;
  font-size:12.5px;color:rgba(255,255,255,.66);
}
.hero-note svg{width:16px;height:16px;stroke-width:1.75;flex-shrink:0;color:var(--mint-l)}
.hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  aspect-ratio:4/3;background:#0B2A24;
  box-shadow:var(--shadow-3);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:14px;right:14px;bottom:14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 16px;border-radius:var(--radius-sm);
  background:rgba(14,58,50,.76);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.16);
  font-size:12.5px;color:rgba(255,255,255,.9);
}
.hero-figure figcaption strong{color:var(--amber);font-variant-numeric:tabular-nums;font-size:15px}

/* ---------- 数据徽章带 ---------- */
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding-top:0}
.metric-band{
  position:relative;z-index:3;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:calc(-1 * clamp(58px,6vw,72px));
}
.metric{
  display:flex;flex-direction:column;gap:4px;
  padding:20px 22px;border-radius:var(--radius-md);
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.metric-value{
  font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.15;
  color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.metric-value span{font-size:14px;font-weight:500;color:var(--text-3);margin-left:3px;letter-spacing:0}
.metric-label{font-size:12px;color:var(--text-3);letter-spacing:.02em}
.metric.is-accent{
  background:var(--brand-grad);border-color:rgba(255,255,255,.18);
  transform:rotate(-1deg);box-shadow:var(--shadow-2);
}
.metric.is-accent:hover{transform:rotate(-1deg) translateY(-2px)}
.metric.is-accent .metric-value{color:#fff}
.metric.is-accent .metric-value span{color:rgba(255,255,255,.72)}
.metric.is-accent .metric-label{color:rgba(255,255,255,.72)}

/* ---------- 区块标题 ---------- */
.section-head{max-width:740px;margin-bottom:clamp(24px,3vw,40px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--ink-2);
}
.eyebrow::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--amber)}
.section-title{
  margin-top:10px;font-size:clamp(22px,2.6vw,32px);line-height:1.35;
  font-weight:700;color:var(--ink);letter-spacing:0;
}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 渠道对比表 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--card);box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.compare{width:100%;border-collapse:collapse;min-width:720px;font-size:14.5px}
table.compare thead th{
  background:#F1EFE8;color:var(--ink);
  font-size:13px;font-weight:600;letter-spacing:.02em;text-align:left;
  padding:15px 20px;white-space:nowrap;border-bottom:1px solid var(--line);
}
table.compare tbody td{
  padding:18px 20px;vertical-align:top;color:var(--text-2);
  border-bottom:1px solid var(--divider);
}
table.compare tbody tr:nth-child(even){background:#FBFAF7}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr{transition:background .16s ease}
table.compare tbody tr:hover{background:#F3F8F5}
.channel-name{
  display:flex;align-items:center;gap:10px;
  font-weight:600;color:var(--ink);font-size:15px;white-space:nowrap;
}
.channel-name .ico{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  background:rgba(63,191,154,.14);color:var(--ink-2);
}
.channel-name .ico svg{width:17px;height:17px;stroke-width:1.75}
.table-scroll .num{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:600}
.pill{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;
  background:rgba(63,191,154,.14);color:#17624F;border:1px solid rgba(63,191,154,.32);
}
.pill-amber{background:rgba(242,160,61,.16);color:#A96210;border-color:rgba(242,160,61,.36)}
.pill-muted{background:#F1EFE8;color:var(--text-2);border-color:var(--line)}
.table-tip{
  display:flex;align-items:center;gap:8px;
  margin-top:14px;font-size:12.5px;color:var(--text-3);
}
.table-tip svg{width:16px;height:16px;stroke-width:1.75;color:var(--info);flex-shrink:0}

/* ---------- 处理流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;padding:26px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.step::before{
  content:"";position:absolute;left:24px;top:0;width:32px;height:3px;border-radius:0 0 3px 3px;
  background:var(--amber);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE8DD}
.step-num{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.step h3{margin:10px 0 8px;font-size:18px;line-height:1.5;font-weight:600;color:var(--ink)}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 分组 FAQ ---------- */
.faq-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 32px;align-items:start}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-group-title svg{width:20px;height:20px;stroke-width:1.75;color:var(--ink-2);flex-shrink:0}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--card);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:last-child{margin-bottom:0}
.faq-item:hover{box-shadow:var(--shadow-1);border-color:#D7D2C6}
.faq-item[open]{
  border-left:3px solid var(--amber);
  box-shadow:var(--shadow-2);
  border-color:#DCD6C8;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;min-height:44px;
  font-size:15.5px;font-weight:600;line-height:1.6;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-icon{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;
  background:#F1EFE8;color:var(--ink-2);
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-icon svg{width:14px;height:14px;stroke-width:2}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(242,160,61,.18);color:#A96210}
.faq-body{padding:0 18px 18px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.faq-body strong{color:var(--ink);font-weight:600}

/* ---------- CTA 通栏 ---------- */
.cta-section{padding:0 0 clamp(56px,7vw,96px)}
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:28px;
  padding:clamp(28px,4vw,48px);
  border-radius:var(--radius-lg);
  background:var(--brand-grad);
  color:#fff;box-shadow:var(--shadow-3);
}
.cta-banner::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,227,184,.3),transparent 70%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{
  font-size:clamp(21px,2.4vw,28px);line-height:1.4;font-weight:700;letter-spacing:0;
}
.cta-copy p{margin-top:10px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.82)}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-grad);
  color:rgba(255,255,255,.82);
  padding-top:clamp(40px,5vw,64px);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.16);
}
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);box-shadow:none}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:32em}
.footer-title{
  margin-bottom:18px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;
}
.footer-link{
  display:inline-flex;align-items:center;min-height:34px;
  font-size:13.5px;color:rgba(255,255,255,.74);
  transition:color .16s ease,transform .16s ease;
}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.footer-grid > div:nth-child(2),
.footer-grid > div:nth-child(3){display:flex;flex-direction:column;align-items:flex-start}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:12px;line-height:1.7;
}
.footer-contact svg{
  width:17px;height:17px;flex-shrink:0;margin-top:4px;
  fill:none;stroke:var(--mint-l);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  padding-top:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));
  font-size:12.5px;color:rgba(255,255,255,.6);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  width:40px;height:40px;border-radius:50%;
  justify-content:center;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  color:#fff;transition:transform .16s ease,background .16s ease;
}
.to-top:hover{transform:translateY(-3px);background:rgba(255,255,255,.2)}
.to-top svg{width:18px;height:18px;stroke-width:1.75}

/* ---------- 移动底部 Tab ---------- */
.mobile-tabbar{display:none}
@media (max-width:767px){
  body{padding-bottom:calc(84px + env(safe-area-inset-bottom))}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -18px rgba(14,58,50,.55);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    position:relative;flex:1;min-height:56px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    font-size:10px;line-height:1.3;color:var(--text-3);
    transition:color .16s ease;
  }
  .tab-item svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
  .tab-item.is-active{color:var(--ink);font-weight:600}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;border-radius:2px;background:var(--ink);
  }
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-figure{max-width:560px;order:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .steps{grid-template-columns:1fr;gap:16px}
  .faq-groups{grid-template-columns:1fr;gap:24px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .header-cta{margin-left:auto}
}
@media (max-width:768px){
  :root{--header-h:62px}
  .metric-band{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:-46px}
  .metric{padding:16px 18px}
  .metric.is-accent{transform:none}
  .metric.is-accent:hover{transform:translateY(-2px)}
  .page-hero{padding-bottom:72px}
  .section{padding:56px 0}
  .section-tight{padding-top:0}
  .cta-banner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .logo-main{font-size:14.5px}
  .logo-sub{display:none}
  .header-cta{padding:0 16px;font-size:14px;min-height:40px}
  .hero-actions .btn{width:100%}
  .hero-figure figcaption{flex-direction:column;align-items:flex-start;gap:2px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .metric-value{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}