/* roulang page: index */
:root{
  --ink:#0B2621;
  --ink-2:#123B33;
  --ink-3:#1B4F44;
  --mint:#2ED3A0;
  --mint-soft:#D8F6EC;
  --mint-dim:rgba(46,211,160,.35);
  --clay:#E0704A;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --text:#14201D;
  --muted:#5A6B66;
  --line:#E3DFD5;
  --white-soft:#EAF3F0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,38,33,.06);
  --sh-2:0 10px 30px -12px rgba(11,38,33,.18);
  --sh-3:0 24px 60px -24px rgba(11,38,33,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::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","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
.ff-num{font-family:"Archivo","Inter","Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums;}

.row{display:flex;flex-wrap:wrap;max-width:1200px;margin:0 auto;}
.row.expanded{max-width:none;}
.column,.columns{padding-left:12px;padding-right:12px;float:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1025px){.container{padding:0 24px;}}

.section{padding:96px 0;}
@media (max-width:1024px){.section{padding:80px 0;}}
@media (max-width:768px){.section{padding:60px 0;}}
.section--tight{padding-top:64px;}
.section--dark{background:var(--ink);color:var(--white-soft);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.eyebrow{
  font-family:"Archivo","Inter",sans-serif;
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:10px;display:block;
}
.section--dark .eyebrow{color:rgba(234,243,240,.6);}
.h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
.h3{font-size:21px;font-weight:600;line-height:1.4;}
.lead{color:var(--muted);font-size:16px;max-width:640px;}
.section--dark .lead{color:rgba(234,243,240,.72);}

/* ============ 顶部倒计时条 ============ */
.topbar{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  color:var(--white-soft);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:52px;display:flex;align-items:center;gap:18px;
  overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;
}
.topbar-inner::-webkit-scrollbar{display:none;}
.topbar-tag{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  font-size:13px;font-weight:600;color:var(--mint);
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(46,211,160,.12);
  border:1px solid rgba(46,211,160,.22);
}
.topbar-tag i{font-size:11px;}
.countdown{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.cd-unit{
  display:flex;align-items:baseline;gap:3px;
  background:rgba(255,255,255,.08);
  border-radius:var(--r-sm);padding:3px 10px;
}
.cd-num{font-size:18px;font-weight:700;line-height:1.3;letter-spacing:.02em;}
.cd-label{font-size:11px;color:rgba(234,243,240,.6);}
.topbar-link{
  margin-left:auto;flex:0 0 auto;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--mint);
  padding:8px 4px;min-height:44px;
}
.topbar-link i{transition:transform .18s var(--ease);}
.topbar-link:hover i{transform:translateX(3px);}
.topbar-link:hover{color:#fff;}

/* ============ 卡片化导航 ============ */
.nav-wrap{position:sticky;top:52px;z-index:70;padding-top:18px;}
.nav-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-2);
  padding:12px 14px;
  display:flex;align-items:center;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--ink);color:var(--mint);
  display:grid;place-items:center;font-weight:800;
  font-family:"Archivo",sans-serif;font-size:15px;letter-spacing:-.02em;
  box-shadow:var(--sh-1);
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;line-height:1.2;}
.brand-text span{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.04em;}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;flex-wrap:wrap;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 12px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--text);
  border:1px solid transparent;
  min-height:44px;
}
.nav-chip i{
  width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;
  background:var(--mint-soft);color:var(--ink-2);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--mint-soft);}
.nav-chip:hover i{background:var(--ink-2);color:var(--mint);}
.nav-chip.is-active{
  background:var(--ink);color:#fff;position:relative;
}
.nav-chip.is-active i{background:rgba(46,211,160,.22);color:var(--mint);}
.nav-chip.is-active::after{
  content:"";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--mint);
  display:none;
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--mint-soft);}

@media (max-width:1024px){
  .nav-chips{gap:4px;}
  .nav-chip{padding:6px 9px;font-size:13px;}
}
@media (max-width:900px){
  .nav-card{flex-wrap:wrap;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-chips{
    display:none;width:100%;
    grid-template-columns:1fr 1fr;gap:8px;
    padding-top:8px;border-top:1px solid var(--line);margin-top:8px;
  }
  .nav-chips.is-open{display:grid;}
  .nav-chips .nav-chip{width:100%;}
  .nav-cta{display:none;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--mint-dim);}
.btn-primary{background:var(--ink);color:var(--mint);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-mint{background:var(--mint);color:var(--ink);}
.btn-mint:hover{background:#28bd8f;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{
  background:#DCD8CE;color:#8C948F;cursor:not-allowed;transform:none;box-shadow:none;border-color:#DCD8CE;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--ink);position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--mint);transition:width .18s var(--ease);
}
.link-arrow:hover{color:var(--ink-2);}
.link-arrow:hover::after{width:100%;}
.link-arrow i{transition:transform .18s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(rgba(11,38,33,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ink-2);
  background:var(--mint-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.12;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero h1 .hl{
  position:relative;white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.08em;height:.28em;
  background:rgba(46,211,160,.35);border-radius:3px;z-index:-1;
}
.hero-sub{font-size:18px;color:var(--muted);max-width:520px;margin-bottom:30px;line-height:1.75;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px;}
.hero-stats{
  display:flex;align-items:stretch;gap:0;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:26px;
}
.stat{padding-right:28px;margin-right:28px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.stat-num{font-size:30px;font-weight:700;line-height:1.2;letter-spacing:-.02em;color:var(--ink);}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px;color:var(--muted);}
.stat-label{font-size:13px;color:var(--muted);margin-top:2px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:20px;border:1px solid rgba(11,38,33,.10);
  box-shadow:var(--sh-3);
}
.hero-float{
  position:absolute;left:-22px;bottom:-22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:14px 18px;display:flex;align-items:center;gap:12px;
  max-width:250px;
}
.hero-float i{
  width:38px;height:38px;border-radius:11px;background:var(--mint-soft);
  color:var(--ink-2);display:grid;place-items:center;flex:0 0 auto;
}
.hero-float strong{display:block;font-size:15px;font-weight:700;line-height:1.35;}
.hero-float span{font-size:12px;color:var(--muted);}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media img{aspect-ratio:4/3;}
  .hero-float{left:12px;bottom:-18px;}
}
@media (max-width:520px){
  .hero{padding:48px 0 64px;}
  .hero-stats{gap:20px;}
  .stat{border-right:0;padding-right:0;margin-right:0;flex:1 1 40%;}
  .hero-sub{font-size:16px;}
}

/* ============ 卖点区（非对称） ============ */
.value-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.value-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:40px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;gap:28px;
}
.value-main::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(46,211,160,.10);
}
.value-main h3{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:14px;}
.value-main p{color:var(--muted);max-width:520px;}
.value-main ul{display:flex;flex-wrap:wrap;gap:10px;position:relative;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;padding:6px 13px;border-radius:var(--r-pill);
  background:var(--mint-soft);color:var(--ink-2);
}
.tag.tag-line{background:transparent;border:1px solid var(--line);color:var(--muted);}
.value-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.side-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.side-card i{
  width:42px;height:42px;border-radius:12px;background:var(--ink);color:var(--mint);
  display:grid;place-items:center;margin-bottom:16px;
}
.side-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.side-card p{font-size:14px;color:var(--muted);line-height:1.85;}
@media (max-width:900px){
  .value-grid{grid-template-columns:1fr;}
  .value-main{padding:30px;}
}

/* ============ 亮点图墙 ============ */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.wall-item{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid rgba(11,38,33,.10);background:#000;
  min-height:220px;
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.wall-item:hover img{transform:scale(1.04);}
.wall-mask{
  position:absolute;inset:0;display:flex;align-items:flex-end;gap:10px;
  padding:22px;color:#fff;
  background:linear-gradient(180deg,rgba(11,38,33,0) 30%,rgba(11,38,33,.72) 100%);
  opacity:0;transition:opacity .3s var(--ease);
}
.wall-item:hover .wall-mask{opacity:1;background:linear-gradient(180deg,rgba(11,38,33,.25) 0%,rgba(11,38,33,.85) 100%);}
.wall-mask h3{font-size:17px;font-weight:600;line-height:1.4;}
.wall-mask i{margin-left:auto;font-size:13px;}
.wall-a{grid-column:span 6;min-height:320px;}
.wall-b{grid-column:span 3;}
.wall-c{grid-column:span 3;}
.wall-d{grid-column:span 4;}
.wall-e{grid-column:span 4;transform:translateY(24px);}
.wall-f{grid-column:span 4;}
@media (max-width:900px){
  .wall-a{grid-column:span 12;min-height:260px;}
  .wall-b,.wall-c{grid-column:span 6;}
  .wall-d,.wall-e,.wall-f{grid-column:span 6;}
  .wall-e{transform:none;}
}
@media (max-width:520px){
  .wall-b,.wall-c,.wall-d,.wall-e,.wall-f{grid-column:span 12;}
}

/* ============ CTA 表单区 ============ */
.cta-band{background:var(--ink);color:var(--white-soft);position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:rgba(46,211,160,.08);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.cta-grid h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.22;letter-spacing:-.015em;margin-bottom:18px;color:#fff;}
.cta-grid p{color:rgba(234,243,240,.72);margin-bottom:26px;max-width:460px;}
.cta-points{display:grid;gap:12px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:rgba(234,243,240,.85);}
.cta-points i{color:var(--mint);font-size:13px;}
.form-card{
  background:#fff;border-radius:20px;padding:30px;color:var(--text);
  box-shadow:var(--sh-3);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
.input{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);
  background:#FCFBF8;padding:0 14px;font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.input:hover{border-color:#CFC9BC;background:#fff;}
.input:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px var(--mint-dim);background:#fff;}
select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field.has-error .input{border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,112,74,.16);}
.field .error-msg{display:none;font-size:13px;color:var(--clay);margin-top:6px;}
.field.has-error .error-msg{display:block;}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7;}
.form-status{margin-top:14px;font-size:14px;font-weight:600;color:var(--ink-2);display:none;}
.form-status.is-show{display:block;}
@media (max-width:900px){
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .form-card{padding:24px;}
}

/* ============ 最新信息（CMS） ============ */
.news-grid{margin-left:-12px;margin-right:-12px;}
.news-grid > .column{padding:0 12px 24px;float:none;}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{position:relative;overflow:hidden;background:#EDEAE2;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-badge{
  position:absolute;left:12px;top:12px;
  font-size:11px;font-weight:700;letter-spacing:.02em;
  background:var(--mint-soft);color:var(--ink-2);
  padding:4px 11px;border-radius:var(--r-pill);
}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px;}
.news-title{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s var(--ease);
}
.news-card:hover .news-title{color:var(--ink-3);}
.news-desc{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-foot .ff-num{letter-spacing:.02em;}
.news-foot i{color:var(--mint);transition:transform .18s var(--ease);}
.news-card:hover .news-foot i{transform:translateX(4px);}
.news-empty{
  border:1px dashed #CFC9BC;border-radius:var(--r-md);
  background:rgba(255,255,255,.6);
  padding:56px 24px;text-align:center;
}
.news-empty i{font-size:26px;color:var(--muted);margin-bottom:14px;display:block;}
.news-empty p{color:var(--muted);margin-bottom:20px;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;gap:18px;padding:22px 8px;min-height:64px;
  transition:background .18s var(--ease);
}
.faq-q:hover{background:rgba(216,246,236,.3);}
.faq-q:focus-visible{outline:none;box-shadow:0 0 0 3px var(--mint-dim);border-radius:8px;}
.faq-num{font-size:14px;font-weight:700;color:var(--muted);flex:0 0 34px;letter-spacing:.04em;}
.faq-text{font-size:17px;font-weight:600;flex:1 1 auto;line-height:1.55;}
.faq-icon{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-2);
  transition:transform .25s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:var(--ink);color:var(--mint);border-color:var(--ink);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 8px 22px 52px;color:var(--muted);font-size:15px;line-height:1.9;
  border-left:3px solid var(--mint);margin-left:0;padding-left:16px;
  margin-bottom:22px;max-width:760px;
}
@media (max-width:520px){
  .faq-num{flex:0 0 26px;}
  .faq-text{font-size:16px;}
}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#C9DBD6;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:24px;}
.footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.01em;}
.footer p{font-size:14px;line-height:1.9;color:#9FB5AE;max-width:320px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#C9DBD6;position:relative;}
.footer-links a:hover{color:var(--mint);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#C9DBD6;}
.footer-contact i{color:var(--mint);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA8A1;
}
.footer-bottom a{color:#8FA8A1;}
.footer-bottom a:hover{color:var(--mint);}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0B2621;
  --ink-2:#123B33;
  --mint:#2ED3A0;
  --mint-soft:#D8F6EC;
  --clay:#E0704A;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --text:#14201D;
  --text-2:#5A6B66;
  --line:#E3DFD5;
  --on-dark:#EAF3F0;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,38,33,.06);
  --sh-2:0 10px 30px -12px rgba(11,38,33,.18);
  --sh-3:0 24px 60px -24px rgba(11,38,33,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ink-2)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.num{font-family:"Archivo","Inter","Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--text-2);
  font-weight:600;
  font-family:"Archivo","Inter",Arial,sans-serif;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--ink);color:var(--mint-soft);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--ink-2);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,211,160,.35)}
/* ============ NAV ============ */
.nav-wrap{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0 16px;
  background:linear-gradient(180deg,rgba(246,243,237,.97) 0%,rgba(246,243,237,.82) 62%,rgba(246,243,237,0) 100%);
  backdrop-filter:blur(10px);
}
.nav-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:76px;
  padding:12px 16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--ink);
  color:var(--mint);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:16px;
  letter-spacing:.02em;
  font-family:"Archivo","Inter",Arial,sans-serif;
}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:17px;line-height:1.25;color:var(--ink)}
.brand-text span{font-size:12px;font-weight:500;color:var(--text-2);letter-spacing:.02em}
.nav-chips{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px 6px 6px;
  border-radius:12px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip i{
  width:28px;height:28px;
  border-radius:8px;
  background:var(--paper);
  color:var(--ink-2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--mint-soft);color:var(--ink)}
.nav-chip:hover i{background:#fff;color:var(--ink)}
.nav-chip.is-active{background:var(--ink);color:#fff}
.nav-chip.is-active i{background:rgba(255,255,255,.14);color:var(--mint)}
.nav-cta{flex:0 0 auto}
.nav-cta .btn{min-height:44px;padding:11px 20px;font-size:14px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
/* ============ BREADCRUMB ============ */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:22px 0 4px;
  font-size:13.5px;
  color:var(--text-2);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .current{color:#93A29D;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb i{font-size:10px;color:#B9C4C0}
/* ============ ARTICLE HEAD ============ */
.article-head{padding:12px 0 0}
.cat-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--mint-soft);
  color:var(--ink-2);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.cat-badge:hover{background:var(--mint);color:var(--ink)}
.article-head h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  margin:18px 0 16px;
  max-width:960px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13.5px;
  color:var(--text-2);
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.article-meta .sep{width:1px;height:14px;background:var(--line)}
.article-cover{
  margin:28px 0 0;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  aspect-ratio:16/9;
  background:var(--paper);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
/* ============ LAYOUT ============ */
.article-layout{margin-top:44px}
.article-col{padding-right:32px}
.side-col{padding-left:32px}
/* ============ ARTICLE BODY ============ */
.article-body{
  max-width:780px;
  font-size:17px;
  line-height:1.95;
  color:var(--text);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;text-align:left}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  line-height:1.35;
  margin:2.1em 0 .7em;
  padding-left:14px;
  border-left:4px solid var(--mint);
}
.article-body h3{font-size:20px;font-weight:600;margin:1.7em 0 .55em;color:var(--ink-2)}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ink-2)}
.article-body a{color:var(--ink-2);text-decoration:underline;text-decoration-color:var(--mint);text-underline-offset:4px;text-decoration-thickness:2px}
.article-body a:hover{color:var(--ink);text-decoration-color:var(--ink)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body li{margin:.45em 0}
.article-body ul li::marker{color:var(--mint)}
.article-body ol li::marker{color:var(--ink-2);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--mint);
  border-radius:0 var(--r-m) var(--r-m) 0;
  color:var(--ink-2);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--r-m);
  margin:1.5em 0;
  width:100%;
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  font-size:13.5px;
  color:var(--text-2);
  text-align:center;
  margin-top:10px;
  line-height:1.7;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  text-align:left;
}
.article-body th{background:var(--mint-soft);font-weight:600;color:var(--ink-2);font-size:14px}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  background:#EDEAE1;
  border-radius:6px;
  padding:2px 6px;
  font-size:14.5px;
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  color:var(--ink-2);
}
.article-body pre{
  background:var(--ink);
  color:var(--on-dark);
  border-radius:var(--r-m);
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.75;
  margin:1.6em 0;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
/* ============ SIDEBAR ============ */
.side-sticky{position:sticky;top:120px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-card h3{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3 i{color:var(--mint);font-size:14px}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{margin:0 0 8px}
.toc-list a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--text-2);
  padding-left:12px;
  border-left:2px solid var(--line);
  transition:color .18s var(--ease),border-color .18s var(--ease),padding-left .18s var(--ease);
}
.toc-list a:hover,.toc-list a.is-current{color:var(--ink);border-color:var(--mint);padding-left:14px}
.toc-empty{font-size:14px;color:var(--text-2);margin:0}
.side-rel{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.side-rel a{display:flex;gap:12px;align-items:flex-start}
.side-rel img{
  width:78px;height:58px;
  object-fit:cover;
  border-radius:var(--r-s);
  border:1px solid var(--line);
  flex:0 0 auto;
}
.side-rel strong{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:4px}
.side-rel span{font-size:12.5px;color:var(--text-2)}
.side-rel a:hover strong{color:var(--mint)}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  padding:12px 16px;
  border-radius:var(--r-m);
  background:var(--mint-soft);
  width:100%;
  justify-content:center;
}
.back-link:hover{background:var(--mint);color:var(--ink)}
.back-link i{transition:transform .18s var(--ease)}
.back-link:hover i{transform:translateX(-3px)}
/* ============ EMPTY ============ */
.empty-state{
  border:1px dashed #CFCABB;
  border-radius:var(--r-m);
  background:#fff;
  padding:56px 24px;
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--mint);margin-bottom:14px}
.empty-state p{color:var(--text-2);margin:0 0 20px;font-size:15px}
/* ============ RELATED ============ */
.related{margin:76px 0 0;padding-top:44px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}
.text-link{
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.text-link i{transition:transform .18s var(--ease)}
.text-link:hover{color:var(--mint)}
.text-link:hover i{transform:translateX(2px)}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:-4px;
  height:2px;width:0;
  background:var(--mint);
  transition:width .18s var(--ease);
}
.text-link:hover::after{width:100%}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 22px}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--text)}
.rel-card:hover .rel-body h3{color:var(--mint)}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0 0 14px}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2)}
.rel-foot i{color:var(--ink-2)}
/* ============ FOOTER ============ */
.footer{
  margin-top:96px;
  background:var(--ink);
  color:#C9DBD6;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:24px;
}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer p{font-size:14px;line-height:1.85;color:#A9C0BA;margin:0}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14px}
.footer-links a{color:#C9DBD6}
.footer-links a:hover{color:var(--mint);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;align-items:center;gap:10px;color:#A9C0BA}
.footer-contact i{color:var(--mint);font-size:13px;width:16px;text-align:center}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8FA8A2;
}
/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-visible{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .article-col{padding-right:0}
  .side-col{padding-left:0;margin-top:44px}
  .side-sticky{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  .nav-chips{
    position:absolute;
    left:16px;
    right:16px;
    top:calc(100% + 10px);
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
    margin:0;
    padding:14px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--sh-2);
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .nav-chips.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-chip{width:100%;font-size:13.5px}
}
@media (max-width:768px){
  .article-layout{margin-top:32px}
  .article-head h1{font-size:28px}
  .article-body{font-size:16.5px;line-height:1.9}
  .related{margin-top:56px;padding-top:32px}
  .related-grid{grid-template-columns:1fr}
  .footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .brand-text span{display:none}
  .nav-card{min-height:64px;padding:10px 12px}
  .nav-chips{grid-template-columns:1fr}
  .article-head h1{font-size:25px}
  .breadcrumb .current{max-width:42%}
  .side-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0B2621;
  --ink-2:#123B33;
  --ink-3:#1B4C42;
  --mint:#2ED3A0;
  --mint-soft:#D8F6EC;
  --mint-deep:#18A87C;
  --clay:#E0704A;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --text:#14201D;
  --muted:#5A6B66;
  --on-dark:#EAF3F0;
  --line:#E3DFD5;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,38,33,.06);
  --sh-2:0 10px 30px -12px rgba(11,38,33,.18);
  --sh-3:0 24px 60px -24px rgba(11,38,33,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Archivo","Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::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:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.004em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2}
h1{font-size:clamp(30px,4.2vw,54px);line-height:1.14}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700}
h3{font-size:21px;font-weight:600;line-height:1.35}
h4{font-size:16px;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,211,160,.35);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--tight{padding:78px 0}
.eyebrow{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:600;
  display:inline-block;
  margin-bottom:14px;
}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15px}
.lead{color:var(--muted);font-size:16px;line-height:1.9}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:14px 0;
  background:rgba(246,243,237,.94);
  border-bottom:1px solid rgba(227,223,213,.7);
}
.nav-wrap{position:relative}
.nav-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:11px 14px;
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--ink);color:var(--mint);
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:800;font-size:15px;
  letter-spacing:.02em;
}
.brand-text{
  display:flex;flex-direction:column;
  font-weight:800;font-size:15px;line-height:1.15;color:var(--ink);
  letter-spacing:-.01em;
}
.brand-text span{
  font-size:11px;font-weight:500;color:var(--muted);
  letter-spacing:.05em;margin-top:3px;
}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-chip{
  display:flex;align-items:center;gap:8px;
  padding:7px 12px 7px 8px;
  border-radius:12px;
  font-size:13.5px;font-weight:600;color:var(--text);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.nav-chip i{
  width:28px;height:28px;border-radius:8px;
  background:var(--paper);color:var(--ink);
  display:grid;place-items:center;font-size:12px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--mint-soft)}
.nav-chip:hover i{background:#fff}
.nav-chip.is-active{background:var(--ink);color:#fff}
.nav-chip.is-active i{background:rgba(46,211,160,.2);color:var(--mint)}
.nav-chip.is-active::after{
  content:"";width:4px;height:4px;border-radius:50%;
  background:var(--mint);margin-left:2px;
}
.nav-cta{flex-shrink:0}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--paper);color:var(--ink);
  font-size:16px;margin-left:auto;
  transition:background .18s var(--ease);
}
.nav-toggle:hover{background:var(--mint-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--mint);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(0);box-shadow:none}
.btn-light{background:var(--mint);color:var(--ink)}
.btn-light:hover{background:#4cdfb2;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-light:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink);
  position:relative;
}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;
  background:var(--mint-deep);transition:width .18s var(--ease);
}
.link-arrow:hover::after{width:100%}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:70px 0 92px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(11,38,33,.5) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.05;pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:60px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--mint-soft);color:var(--ink-2);
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-tag i{color:var(--mint-deep);font-size:12px}
.hero h1{margin-bottom:20px}
.hero h1 em{
  font-style:normal;
  box-shadow:inset 0 -14px 0 rgba(46,211,160,.28);
}
.hero-sub{
  font-size:17px;color:var(--muted);max-width:520px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;
  border-top:1px solid var(--line);padding-top:26px;
}
.hero-stat{padding:0 26px;border-left:1px solid var(--line)}
.hero-stat:first-child{padding-left:0;border-left:0}
.hero-stat strong{
  display:block;font-family:var(--font-num);
  font-size:26px;font-weight:800;color:var(--ink);line-height:1.2;
}
.hero-stat span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative}
.hero-media{
  border-radius:20px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-3);aspect-ratio:16/11;
  background:var(--ink);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-22px;bottom:26px;
  background:var(--card);border:1px solid var(--line);
  border-radius:16px;padding:14px 18px;box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:12px;
}
.float-card i{
  width:38px;height:38px;border-radius:12px;
  background:var(--mint-soft);color:var(--mint-deep);
  display:grid;place-items:center;font-size:15px;
}
.float-card b{display:block;font-size:14px;font-family:var(--font-num)}
.float-card span{font-size:12px;color:var(--muted)}

/* ---------- 导语 ---------- */
.intro{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.intro-body p+p{margin-top:18px}
.intro-body p{color:var(--muted);line-height:1.95}
.intro-facts{
  margin-top:26px;display:grid;gap:12px;
}
.intro-facts li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14.5px;color:var(--text);
}
.intro-facts i{color:var(--mint-deep);margin-top:6px;font-size:13px}

/* ---------- 编号条目 ---------- */
.steps{border-top:1px solid var(--line)}
.step{
  display:grid;grid-template-columns:110px 1fr 44px;
  gap:26px;align-items:start;
  padding:32px 18px 32px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.step:hover{background:#fff;padding-left:18px}
.step-num{
  font-family:var(--font-num);font-weight:800;
  font-size:46px;line-height:1;color:var(--ink);
  opacity:.16;
}
.step:hover .step-num{opacity:.4;color:var(--mint-deep)}
.step h3{margin-bottom:8px}
.step p{color:var(--muted);font-size:15px;line-height:1.9;max-width:760px}
.step-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--mint-soft);color:var(--ink-2);
  display:grid;place-items:center;font-size:15px;
}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.wall-item{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.wall-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.wall-item:hover img{transform:scale(1.04)}
.wall-item figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 20px 18px;
  color:#fff;font-size:15px;font-weight:600;
  background:linear-gradient(to top,rgba(11,38,33,.82),rgba(11,38,33,0));
  display:flex;align-items:center;gap:10px;
}
.wall-item figcaption i{color:var(--mint);font-size:13px;transition:transform .18s var(--ease)}
.wall-item:hover figcaption i{transform:translateX(4px)}
.wall-a{grid-column:span 5;aspect-ratio:4/3}
.wall-b{grid-column:span 4;aspect-ratio:4/3;margin-top:26px}
.wall-c{grid-column:span 3;aspect-ratio:3/4}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:20px;
  min-height:68px;padding:16px 14px 16px 0;
  background:transparent;border:0;text-align:left;
  transition:background .18s var(--ease),padding-left .18s var(--ease);
}
.faq-q:hover{background:rgba(216,246,236,.5);padding-left:14px}
.faq-idx{font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--muted);min-width:32px}
.faq-t{flex:1;font-size:16.5px;font-weight:600;line-height:1.6}
.faq-ico{
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:13px;color:var(--ink);flex-shrink:0;
  transition:transform .22s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--ink);color:var(--mint);border-color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a div{
  border-left:3px solid var(--mint);
  padding:2px 0 20px 18px;margin-left:2px;
  color:var(--muted);font-size:15px;line-height:1.95;
}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- CTA / 表单 ---------- */
.cta{background:var(--ink);color:var(--on-dark);position:relative;overflow:hidden}
.cta::before{
  content:"";position:absolute;right:-120px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:rgba(46,211,160,.09);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 460px;gap:56px;align-items:center}
.cta h2{color:#fff;margin-bottom:18px}
.cta-info{color:#B9CFC9;font-size:15.5px;line-height:1.9;max-width:520px}
.cta-list{margin-top:28px;display:grid;gap:14px}
.cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#C9DBD6}
.cta-list i{color:var(--mint);margin-top:6px;font-size:13px}
.form-card{
  background:var(--card);color:var(--text);
  border-radius:var(--r-lg);padding:30px;
  box-shadow:var(--sh-3);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-note{font-size:13px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:12px;
  background:#FCFBF8;color:var(--text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field input::placeholder{color:#9AA8A3}
.field input:hover,.field select:hover{border-color:#CFC9BB;background:#fff}
.field input:focus,.field select:focus{
  outline:none;background:#fff;border-color:var(--mint);
  box-shadow:0 0 0 3px rgba(46,211,160,.28);
}
.field.has-error input,.field.has-error select{
  border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,112,74,.16);
}
.field .err{display:none;font-size:13px;color:var(--clay);margin-top:6px}
.field.has-error .err{display:block}
.field input:disabled,.field select:disabled{
  background:#F1EEE7;color:#9AA8A3;cursor:not-allowed;border-color:var(--line);
}
.form-card .btn{width:100%;height:52px;margin-top:6px}
.form-card .btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:var(--sh-1)}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:12px;
  background:var(--mint-soft);color:var(--ink-2);font-size:13.5px;
}
.form-ok.show{display:block}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#C9DBD6;padding:70px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:24px;padding-bottom:44px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer p{line-height:1.9;color:#A8C1BB;font-size:13.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9DBD6;transition:color .18s var(--ease);border-bottom:1px solid transparent}
.footer-links a:hover{color:var(--mint);border-bottom-color:var(--mint)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;color:#A8C1BB;font-size:13.5px}
.footer-contact i{color:var(--mint);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FA9A3;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-toggle{display:grid;place-items:center}
  .nav-chips{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;grid-template-columns:1fr 1fr;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:18px;
    padding:12px;box-shadow:var(--sh-3);justify-content:stretch;
  }
  .nav-chips.is-open{display:grid}
  .nav-chip{background:var(--paper);padding:8px}
  .nav-chip.is-active::after{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-sub{max-width:none}
  .cta-grid{grid-template-columns:1fr;gap:38px}
  .cta-info{max-width:none}
}
@media (max-width:900px){
  .section{padding:80px 0}
  .intro-grid{grid-template-columns:1fr;gap:30px}
  .wall-a{grid-column:span 7}
  .wall-b{grid-column:span 5;margin-top:20px}
  .wall-c{grid-column:span 12;aspect-ratio:16/9;margin-top:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section--tight{padding:54px 0}
  .brand-text span{display:none}
  .nav-cta .btn{height:44px;padding:0 18px;font-size:14px}
  .hero{padding:44px 0 66px}
  .hero-stats{gap:16px 0}
  .hero-stat{padding:0 18px}
  .hero-stat strong{font-size:22px}
  .float-card{left:-8px;bottom:14px;padding:12px 14px}
  .step{grid-template-columns:64px 1fr;gap:16px;padding:26px 0}
  .step-icon{display:none}
  .step-num{font-size:34px}
  .wall{grid-template-columns:1fr;gap:16px}
  .wall-a,.wall-b,.wall-c{grid-column:span 12;aspect-ratio:16/10;margin-top:0}
  .faq-t{font-size:15.5px}
  .form-card{padding:22px}
  .footer{padding-top:52px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{justify-content:flex-start}
  .cta-list li{font-size:13.5px}
}
@media (max-width:400px){
  .hero-actions .btn{width:100%}
  .hero-stat{padding:0 12px}
}

/* roulang page: category2 */
:root{
  --green-900:#0B2621;
  --green-800:#123B33;
  --green-700:#1A4C42;
  --mint:#2ED3A0;
  --mint-600:#22B98A;
  --mint-100:#D8F6EC;
  --mint-soft:rgba(46,211,160,.30);
  --clay:#E0704A;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --ink:#14201D;
  --ink-2:#5A6B66;
  --inv:#EAF3F0;
  --line:#E3DFD5;
  --line-dark:rgba(255,255,255,.12);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(11,38,33,.06);
  --sh2:0 10px 30px -12px rgba(11,38,33,.18);
  --sh3:0 24px 60px -24px rgba(11,38,33,.28);
  --dur:180ms;
  --ease:cubic-bezier(.2,.7,.2,1);
  --sec:112px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Archivo","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
a:hover{color:var(--green-800);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
:focus{outline:none;}
:focus-visible{outline:3px solid rgba(46,211,160,.55);outline-offset:2px;border-radius:4px;}

/* Foundation 覆盖 */
.row{max-width:1200px;margin-left:auto;margin-right:auto;}
.column,.columns{padding-left:12px;padding-right:12px;}
body,button,input,select,textarea{font-family:var(--font-cn);}
a.button,button.button{background:none;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec) 0;}
.section-sm{padding:72px 0;}
.eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--ink-2);
  margin-bottom:14px;
}
.eyebrow.light{color:rgba(234,243,240,.78);}
.h1{font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.12;letter-spacing:-.02em;}
.h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
.h3{font-size:21px;font-weight:600;line-height:1.4;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head p{color:var(--ink-2);font-size:15px;max-width:560px;margin-top:10px;}
.lead{font-size:17px;color:var(--ink-2);line-height:1.95;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn i{font-size:13px;transition:transform var(--dur) var(--ease);}
.btn:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.btn:hover i{transform:translateX(2px);}
.btn:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn:focus-visible{outline:3px solid rgba(46,211,160,.45);outline-offset:3px;}
.btn-primary{background:var(--green-900);color:var(--inv);}
.btn-primary:hover{background:var(--green-700);color:var(--inv);}
.btn-mint{background:var(--mint);color:var(--green-900);}
.btn-mint:hover{background:#3FE0AE;color:var(--green-900);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--mint-100);border-color:var(--mint);color:var(--green-900);}
.btn-ghost-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.45);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#C9CFCB;color:#F2F5F3;box-shadow:none;cursor:not-allowed;transform:none;border-color:transparent;}
.btn[disabled]:hover,.btn.is-disabled:hover{transform:none;box-shadow:none;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0 10px;
  background:rgba(246,243,237,.92);
  backdrop-filter:saturate(140%) blur(8px);
}
.nav-card{
  display:flex;align-items:center;gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:12px 16px;
  box-shadow:var(--sh2);
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--green-900);color:var(--mint);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
.brand-text span{font-size:11.5px;font-weight:500;color:var(--ink-2);letter-spacing:.01em;margin-top:2px;}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1;flex-wrap:wrap;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  position:relative;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-chip i{font-size:12.5px;color:var(--mint-600);}
.nav-chip:hover{background:var(--mint-100);color:var(--green-900);}
.nav-chip.is-active{background:var(--green-900);color:#fff;}
.nav-chip.is-active i{color:var(--mint);}
.nav-chip.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:6px;
  width:4px;height:4px;border-radius:50%;background:var(--mint);
}
.nav-cta{flex-shrink:0;}
.nav-cta .btn{height:46px;padding:0 22px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--card);color:var(--green-900);font-size:16px;cursor:pointer;margin-left:auto;
}
.nav-toggle:hover{background:var(--mint-100);}

/* Hero */
.cat-hero{position:relative;min-height:620px;display:flex;align-items:flex-end;overflow:hidden;background:var(--green-900);}
.cat-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.cat-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(11,38,33,.92) 0%,rgba(11,38,33,.78) 42%,rgba(11,38,33,.34) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:120px;padding-bottom:72px;max-width:1200px;}
.cat-hero h1{color:#fff;margin-bottom:18px;max-width:820px;}
.cat-hero .sub{color:rgba(234,243,240,.9);font-size:18px;max-width:620px;line-height:1.85;}
.cat-hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.cat-hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px;}
.tag-light{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#EAF3F0;font-size:13px;font-weight:600;
}
.tag-light i{color:var(--mint);font-size:12px;}

/* 导语 + 数据条 */
.intro-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:start;}
.intro-copy p+p{margin-top:18px;}
.intro-copy p{color:var(--ink-2);font-size:16.5px;line-height:1.95;}
.stat-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:8px 26px;box-shadow:var(--sh1);
}
.stat-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);}
.stat-row:last-child{border-bottom:0;}
.stat-num{font-family:var(--font-num);font-size:34px;font-weight:700;letter-spacing:-.03em;color:var(--green-900);}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px;color:var(--ink-2);}
.stat-label{font-size:14px;color:var(--ink-2);text-align:right;line-height:1.6;}

/* 时间轴 */
.timeline-wrap{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.timeline{max-width:880px;margin:0 auto;}
.tl-item{position:relative;display:grid;grid-template-columns:72px 1fr;gap:28px;padding-bottom:46px;}
.tl-item::before{
  content:"";position:absolute;left:35px;top:62px;bottom:6px;width:2px;background:var(--line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-index{
  width:72px;height:52px;border-radius:14px;background:var(--paper);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:17px;font-weight:700;color:var(--green-900);
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tl-item:hover .tl-index{background:var(--green-900);color:var(--mint);border-color:var(--green-900);}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tl-body p{color:var(--ink-2);font-size:15.5px;line-height:1.9;max-width:660px;}
.tl-meta{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--mint-100);color:var(--green-800);font-size:12px;font-weight:600;
}
.tag-plain{background:transparent;border:1px solid var(--line);color:var(--ink-2);}
.tag-clay{background:rgba(224,112,74,.12);color:#B14C2C;}

/* 图文双栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.split-figure{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh2);aspect-ratio:4/3;background:var(--green-900);}
.split-figure img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.split-figure:hover img{transform:scale(1.04);}
.check-list li{display:grid;grid-template-columns:26px 1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--mint-600);font-size:15px;margin-top:6px;}
.check-list h4{font-size:16.5px;font-weight:600;margin-bottom:4px;}
.check-list p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* 权益卡行 */
.benefit-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.benefit-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:28px 24px;
  box-shadow:var(--sh1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.benefit-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#CFE9DF;}
.benefit-card i{font-size:20px;color:var(--mint-600);margin-bottom:16px;display:block;}
.benefit-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.benefit-card p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* FAQ */
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;
  padding:22px 26px;min-height:64px;background:transparent;border:0;cursor:pointer;text-align:left;
  transition:background-color var(--dur) var(--ease);
}
.faq-q:hover{background:rgba(216,246,236,.6);}
.faq-num{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--ink-2);letter-spacing:.04em;flex-shrink:0;}
.faq-text{flex:1;font-size:16.5px;font-weight:600;color:var(--ink);}
.faq-icon{color:var(--green-800);font-size:14px;transition:transform var(--dur) var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease);}
.faq-a-inner{
  border-left:3px solid var(--mint);margin:0 26px 22px 53px;padding:2px 0 2px 18px;
}
.faq-a-inner p{font-size:15px;color:var(--ink-2);line-height:1.9;}

/* CTA 表单 */
.cta-band{background:var(--green-900);color:var(--inv);position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,160,.22),rgba(46,211,160,0) 68%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.cta-copy h2{color:#fff;margin-bottom:18px;}
.cta-copy p{color:rgba(234,243,240,.82);font-size:16px;line-height:1.95;max-width:520px;}
.cta-points{margin-top:28px;display:grid;gap:12px;}
.cta-points li{display:flex;align-items:center;gap:12px;font-size:14.5px;color:rgba(234,243,240,.9);}
.cta-points i{color:var(--mint);font-size:13px;}
.form-card{
  background:var(--card);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh3);color:var(--ink);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--ink-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);background:#FCFBF8;
  padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:hover,.field select:hover{border-color:#CBD8D2;}
.field input:focus,.field select:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(46,211,160,.28);background:#fff;}
.field input:disabled,.field select:disabled{background:#EFEDE7;color:#9AA5A0;cursor:not-allowed;border-color:var(--line);}
.field.is-error input,.field.is-error select{border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,112,74,.18);}
.field-msg{display:none;font-size:13px;color:#B14C2C;margin-top:6px;}
.field.is-error .field-msg{display:block;}
.form-foot{font-size:12.5px;color:var(--ink-2);margin-top:14px;line-height:1.7;}
.form-ok{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--mint-100);color:var(--green-800);font-size:13.5px;font-weight:600;}
.form-ok.is-show{display:block;}

/* 页脚 */
.footer{background:var(--green-900);color:#C9DBD6;padding:76px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:24px;}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer p{font-size:14px;line-height:1.9;color:#AFC5C0;max-width:340px;}
.footer-links li,.footer-contact li{margin-bottom:12px;font-size:14px;}
.footer-links a{position:relative;color:#C9DBD6;}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--mint);
  transition:width var(--dur) var(--ease);
}
.footer-links a:hover{color:var(--mint);}
.footer-links a:hover::after{width:100%;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#AFC5C0;}
.footer-contact i{color:var(--mint);font-size:13px;margin-top:6px;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#93A9A4;
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1024px){
  :root{--sec:88px;}
  .nav-card{flex-wrap:wrap;padding:12px 14px;gap:14px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-chips{
    display:none;width:100%;flex-direction:row;flex-wrap:wrap;gap:8px;
    padding:14px 0 4px;border-top:1px solid var(--line);
  }
  .nav-card.is-open .nav-chips{display:flex;animation:dropIn 200ms var(--ease);}
  .nav-chip{flex:1 1 calc(50% - 8px);justify-content:flex-start;background:var(--paper);}
  .nav-cta{order:3;width:100%;display:none;}
  .nav-card.is-open .nav-cta{display:block;}
  .nav-cta .btn{width:100%;}
  @keyframes dropIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:none;}}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .benefit-row{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .cat-hero{min-height:520px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .cat-hero{min-height:480px;}
  .cat-hero-inner{padding-top:88px;padding-bottom:52px;}
  .cat-hero .sub{font-size:16px;}
  .cat-hero-actions .btn{flex:1 1 100%;}
  .benefit-row{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:56px 1fr;gap:20px;}
  .tl-index{width:56px;height:46px;font-size:15px;}
  .tl-item::before{left:27px;top:56px;}
  .faq-a-inner{margin-left:26px;margin-right:20px;}
  .faq-q{padding:18px 20px;gap:14px;}
  .form-card{padding:26px 22px;}
  .brand-text{font-size:15px;}
}
@media (max-width:520px){
  :root{--sec:64px;}
  .h1{font-size:32px;}
  .stat-row{flex-direction:column;align-items:flex-start;gap:6px;}
  .stat-label{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#0B2621;
  --ink-2:#123B33;
  --ink-3:#1A4C42;
  --mint:#2ED3A0;
  --mint-soft:#D8F6EC;
  --mint-deep:#1FA97E;
  --clay:#E0704A;
  --bg:#F6F3ED;
  --card:#FFFFFF;
  --text:#14201D;
  --muted:#5A6B66;
  --inverse:#EAF3F0;
  --line:#E3DFD5;
  --line-dark:rgba(255,255,255,.12);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,38,33,.06);
  --sh-2:0 10px 30px -12px rgba(11,38,33,.18);
  --sh-3:0 24px 60px -24px rgba(11,38,33,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --sect:104px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,211,160,.35);border-radius:var(--r-sm);}
.num{font-family:"Archivo","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:769px){ .container{padding:0 24px;} }

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:12px;z-index:60;padding:0 20px;margin-bottom:0;}
@media (min-width:769px){ .site-header{padding:0 24px;} }
.nav-card{
  max-width:1200px;margin:0 auto;background:var(--card);border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:14px;
  padding:10px 14px;min-height:72px;flex-wrap:wrap;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--ink);color:var(--mint);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;line-height:1.2;display:flex;flex-direction:column;}
.brand-text span{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:2px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg);color:var(--ink);font-size:17px;
}
.nav-chips{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--muted);transition:background .18s var(--ease),color .18s var(--ease);
  min-height:38px;position:relative;
}
.nav-chip i{font-size:13px;opacity:.85;}
.nav-chip:hover{background:var(--mint-soft);color:var(--ink);}
.nav-chip.is-active{background:var(--ink);color:#fff;font-weight:600;}
.nav-chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--mint);
}
.nav-cta{flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;transition:all .18s var(--ease);
}
.btn i{transition:transform .18s var(--ease);font-size:13px;}
.btn-primary{background:var(--ink);color:var(--mint);}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:hover i{transform:translateX(2px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint);transform:translateY(-2px);color:var(--ink);}
.btn-ghost:active{transform:translateY(0);}
.btn-mint{background:var(--mint);color:var(--ink);border-color:var(--mint);}
.btn-mint:hover{background:#3ee0ad;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--mint-soft);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-wide{width:100%;min-height:52px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 通用板块 ============ */
.section{padding:var(--sect) 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-block;font-family:"Archivo","Inter",system-ui,sans-serif;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;
}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-top:12px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.9;}
.section-head.on-dark h2{color:#fff;}
.section-head.on-dark p{color:#A9C4BD;}
.section-head.on-dark .eyebrow{color:var(--mint);}

/* ============ 深色控制面板 Hero ============ */
.hero-panel{
  background:var(--ink);color:var(--inverse);position:relative;overflow:hidden;
  margin-top:32px;border-radius:var(--r-lg);
}
.hero-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(46,211,160,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.hero-panel::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,160,.22),transparent 65%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:72px 0 76px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-copy .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.03em;background:rgba(46,211,160,.14);color:var(--mint);
  border:1px solid rgba(46,211,160,.3);
}
.chip-muted{background:rgba(255,255,255,.07);color:#BBD3CD;border-color:rgba(255,255,255,.14);}
.hero-copy h1{
  font-size:clamp(32px,4.4vw,56px);font-weight:800;line-height:1.12;letter-spacing:-.02em;color:#fff;
}
.hero-copy h1 .hl{
  color:var(--ink);background:var(--mint);padding:0 .18em;border-radius:8px;box-decoration-break:clone;
}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.9;color:#B7CFC9;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{margin-top:34px;display:flex;gap:28px;flex-wrap:wrap;}
.hero-meta div{border-left:2px solid rgba(46,211,160,.4);padding-left:14px;}
.hero-meta .num{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.hero-meta small{font-size:13px;color:#93AFA9;}

.panel-card{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-3);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-dark);}
.panel-head strong{font-size:15px;color:#fff;font-weight:700;}
.panel-head span{font-size:12px;color:var(--mint);letter-spacing:.06em;text-transform:uppercase;font-family:"Archivo",sans-serif;}
.panel-list{margin-top:6px;}
.panel-list li{
  display:flex;align-items:center;gap:12px;padding:14px 4px;border-bottom:1px dashed rgba(255,255,255,.1);
}
.panel-list li:last-child{border-bottom:none;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--mint);flex:0 0 auto;box-shadow:0 0 0 4px rgba(46,211,160,.14);}
.dot.orange{background:var(--clay);box-shadow:0 0 0 4px rgba(224,112,74,.16);}
.panel-list .p-name{flex:1 1 auto;font-size:14px;color:#DCEAE6;}
.panel-list .p-tag{font-size:12px;color:#8FAEA8;font-family:"Archivo",sans-serif;}

/* ============ 导语区 ============ */
.intro-block{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:44px 40px;box-shadow:var(--sh-1);}
.intro-block h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;margin-bottom:20px;}
.intro-block p{font-size:16px;line-height:1.95;color:var(--muted);}
.intro-block p + p{margin-top:16px;}
.intro-block p strong{color:var(--text);font-weight:600;}

/* ============ 卡片行式对比区 ============ */
.row-list{display:flex;flex-direction:column;gap:14px;}
.row-card{
  display:grid;grid-template-columns:210px 1fr 220px;gap:26px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 26px;box-shadow:var(--sh-1);transition:all .22s var(--ease);
}
.row-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE9E0;}
.row-card .r-left{display:flex;align-items:center;gap:12px;}
.r-index{
  font-family:"Archivo",sans-serif;font-size:13px;font-weight:700;color:var(--mint-deep);
  background:var(--mint-soft);border-radius:8px;padding:5px 10px;letter-spacing:.04em;
}
.r-title{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.r-desc{font-size:14px;color:var(--muted);line-height:1.85;}
.r-right{display:flex;flex-direction:column;gap:6px;align-items:flex-start;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:var(--r-pill);background:var(--mint-soft);color:var(--ink);
}
.tag-clay{background:rgba(224,112,74,.12);color:#B14E2C;}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--muted);}
.r-right .r-note{font-size:12px;color:var(--muted);font-family:"Archivo",sans-serif;}

/* ============ 2×2 卡片矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.m-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 28px;box-shadow:var(--sh-1);transition:all .22s var(--ease);
  display:flex;flex-direction:column;gap:14px;
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.m-icon{
  width:46px;height:46px;border-radius:13px;background:var(--ink);color:var(--mint);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.m-card h3{font-size:20px;font-weight:700;letter-spacing:-.01em;}
.m-card > p{font-size:14px;color:var(--muted);line-height:1.9;}
.m-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text);
  padding:9px 0;border-top:1px solid var(--line);line-height:1.8;
}
.m-list li i{color:var(--mint-deep);font-size:12px;margin-top:7px;}
.m-card .img-strip{border-radius:12px;overflow:hidden;border:1px solid var(--line);margin-top:4px;}
.m-card .img-strip img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ 图片区块 ============ */
.figure-band{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch;margin-top:56px;}
.figure-band .fb-img{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);position:relative;background:#fff;}
.figure-band .fb-img img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .4s var(--ease);}
.figure-band .fb-img:hover img{transform:scale(1.04);}
.fb-note{
  background:var(--ink);color:var(--inverse);border-radius:var(--r-md);padding:34px 30px;
  display:flex;flex-direction:column;justify-content:center;gap:14px;
}
.fb-note h3{font-size:20px;font-weight:700;color:#fff;}
.fb-note p{font-size:14px;color:#AEC8C2;line-height:1.9;}
.fb-note .num{font-size:40px;font-weight:700;color:var(--mint);line-height:1.1;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:none;text-align:left;display:flex;align-items:center;gap:16px;
  padding:22px 12px;min-height:64px;transition:background .18s var(--ease);color:var(--text);
}
.faq-q:hover{background:rgba(216,246,236,.5);}
.faq-q .q-num{font-family:"Archivo",sans-serif;font-size:13px;font-weight:700;color:var(--muted);flex:0 0 auto;}
.faq-q .q-text{flex:1 1 auto;font-size:16px;font-weight:600;line-height:1.6;}
.faq-q .q-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;transition:all .22s var(--ease);
}
.faq-item.is-open .q-icon{background:var(--ink);color:var(--mint);border-color:var(--ink);transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  margin:0 12px 24px 41px;padding:16px 0 16px 18px;border-left:3px solid var(--mint);
  font-size:15px;line-height:1.95;color:var(--muted);
}

/* ============ CTA ============ */
.cta-band{background:var(--ink);border-radius:var(--r-lg);padding:56px 40px;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-160px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,160,.18),transparent 65%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-copy h2{font-size:clamp(24px,3vw,34px);font-weight:700;color:#fff;line-height:1.25;letter-spacing:-.01em;}
.cta-copy p{margin-top:16px;font-size:15px;color:#AEC8C2;line-height:1.9;max-width:460px;}
.cta-copy ul{margin-top:24px;display:flex;flex-direction:column;gap:10px;}
.cta-copy li{display:flex;gap:10px;align-items:center;font-size:14px;color:#D5E6E2;}
.cta-copy li i{color:var(--mint);font-size:13px;}
.form-card{background:#fff;border-radius:var(--r-md);padding:30px;box-shadow:var(--sh-3);}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--text);}
.field input,.field select{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);background:#fff;
  padding:0 14px;font-size:14px;color:var(--text);font-family:inherit;transition:all .18s var(--ease);
}
.field input::placeholder{color:#9AA9A5;}
.field input:focus,.field select:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(46,211,160,.3);outline:none;}
.field.has-error input,.field.has-error select{border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,112,74,.14);}
.field .err{display:none;margin-top:6px;font-size:13px;color:#B14E2C;}
.field.has-error .err{display:block;}
.field input:disabled,.field select:disabled{background:#F1EFE9;color:#9AA9A5;cursor:not-allowed;}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#C9DBD6;margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:24px;}
.footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.01em;}
.footer p{font-size:14px;line-height:1.9;color:#A9C4BD;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#C9DBD6;transition:color .18s var(--ease);}
.footer-links a:hover{color:var(--mint);text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:12px;color:#C9DBD6;}
.footer-contact i{color:var(--mint);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FAEA8;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sect:80px;}
  .nav-chips{margin-left:0;width:100%;order:3;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .row-card{grid-template-columns:1fr;gap:14px;}
  .r-right{flex-direction:row;align-items:center;flex-wrap:wrap;}
  .figure-band{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  :root{--sect:64px;}
  .site-header{top:8px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-chips{
    display:none;grid-template-columns:1fr 1fr;gap:8px;width:100%;margin-top:6px;
    padding-top:12px;border-top:1px solid var(--line);
  }
  .nav-chips.is-open{display:grid;}
  .nav-chip{width:100%;justify-content:flex-start;background:var(--bg);}
  .nav-chip.is-active::after{display:none;}
  .nav-cta{width:100%;margin-top:8px;}
  .nav-cta .btn{width:100%;}
  .hero-inner{padding:52px 0 56px;}
  .hero-panel{margin-top:20px;border-radius:var(--r-md);}
  .intro-block{padding:32px 22px;border-radius:var(--r-md);}
  .matrix{grid-template-columns:1fr;}
  .cta-band{padding:40px 22px;border-radius:var(--r-md);}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:480px){
  .brand-text{font-size:14px;}
  .hero-meta{gap:18px;}
  .hero-meta .num{font-size:22px;}
  .m-card{padding:24px 20px;}
  .intro-block p,.fb-note p{font-size:15px;}
  .faq-a-inner{margin-left:12px;}
  .row-card{padding:20px 18px;}
}

/* roulang page: category4 */
:root{
  --ink:#0B2621;
  --ink-2:#123B33;
  --mint:#2ED3A0;
  --mint-soft:#D8F6EC;
  --clay:#E0704A;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --text:#14201D;
  --muted:#5A6B66;
  --line:#E3DFD5;
  --white-soft:#EAF3F0;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --shadow-1:0 1px 2px rgba(11,38,33,.06);
  --shadow-2:0 10px 30px -12px rgba(11,38,33,.18);
  --shadow-3:0 24px 60px -24px rgba(11,38,33,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Archivo","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;}
a:hover{color:var(--ink-2);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
section{position:relative;}
.section{padding:112px 0;}
.section-sm{padding:80px 0;}
.eyebrow{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:600;
  display:inline-block;
  margin-bottom:14px;
}
.sec-title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--ink);
}
.sec-desc{
  color:var(--muted);
  max-width:640px;
  margin-top:14px;
  font-size:15.5px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:48px;
  padding:12px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
  line-height:1.2;
}
.btn i{font-size:13px;transition:transform .18s var(--ease);}
.btn-primary{background:var(--ink);color:var(--mint);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--ink-2);color:var(--mint);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:hover i{transform:translateX(2px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-mint{background:var(--mint);color:var(--ink);box-shadow:var(--shadow-1);}
.btn-mint:hover{background:#48dfb2;color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-mint:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--shadow-2);}
.btn-light:hover{background:var(--mint-soft);color:var(--ink);transform:translateY(-2px);}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(46,211,160,.35);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  font-size:15px;
  color:var(--ink);
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  height:1.5px;
  width:0;
  background:var(--mint);
  transition:width .18s var(--ease);
}
.link-arrow:hover::after{width:100%;}
.link-arrow:hover i{transform:translateX(2px);}
.link-arrow i{font-size:12px;transition:transform .18s var(--ease);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(246,243,237,.96) 60%,rgba(246,243,237,.72));
  backdrop-filter:blur(8px);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-2);
  padding:12px 16px 12px 18px;
  min-height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--ink);
  color:var(--mint);
  font-family:var(--font-num);
  font-weight:800;
  font-size:17px;
  display:flex;
  align-items:center;
  justify-content:center;
  letter-spacing:.02em;
}
.brand-text{
  font-size:17px;
  font-weight:800;
  line-height:1.25;
  color:var(--ink);
  letter-spacing:-.01em;
  display:flex;
  flex-direction:column;
}
.brand-text span{
  font-size:11.5px;
  font-weight:500;
  color:var(--muted);
  letter-spacing:.02em;
  margin-top:2px;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:12px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
  min-height:44px;
}
.nav-chip i{
  width:28px;
  height:28px;
  border-radius:8px;
  background:var(--paper);
  color:var(--ink-2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12.5px;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--mint-soft);color:var(--ink);transform:translateY(-1px);}
.nav-chip:hover i{background:#fff;color:var(--ink);}
.nav-chip.is-active{background:var(--ink);color:#fff;}
.nav-chip.is-active i{background:rgba(46,211,160,.2);color:var(--mint);}
.nav-chip.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:4px;
  height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--mint);
}
.nav-cta{flex:0 0 auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
  transition:background-color .18s var(--ease);
}
.nav-toggle:hover{background:var(--mint-soft);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:78px 0 84px;
  overflow:hidden;
  background:
    radial-gradient(rgba(11,38,33,.05) 1px,transparent 1px) 0 0/22px 22px,
    var(--paper);
}
.hero-ghost{
  position:absolute;
  right:-3%;
  top:44%;
  transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:clamp(140px,26vw,360px);
  font-weight:900;
  line-height:.8;
  letter-spacing:-.05em;
  color:transparent;
  -webkit-text-stroke:2px rgba(11,38,33,.075);
  pointer-events:none;
  user-select:none;
  z-index:0;
}
.hero .container{position:relative;z-index:1;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 16px 7px 10px;
  font-size:13px;
  font-weight:600;
  color:var(--ink-2);
  box-shadow:var(--shadow-1);
  margin-bottom:26px;
}
.hero-tag b{
  background:var(--mint-soft);
  color:var(--ink);
  border-radius:999px;
  padding:2px 10px;
  font-size:12px;
  font-weight:700;
}
.hero h1{
  font-size:clamp(36px,6.4vw,78px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--ink);
  max-width:980px;
}
.hero h1 em{
  font-style:normal;
  position:relative;
  background:var(--mint-soft);
  padding:0 10px;
  border-radius:8px;
}
.hero-sub{
  margin-top:24px;
  font-size:clamp(16px,1.6vw,19px);
  color:var(--muted);
  max-width:660px;
  line-height:1.85;
}
.hero-actions{
  margin-top:38px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-stats{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  padding-top:28px;
  max-width:840px;
}
.hero-stats div{
  padding-right:24px;
  border-right:1px solid var(--line);
}
.hero-stats div:last-child{border-right:0;}
.hero-stats b{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.02em;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-stats span{
  display:block;
  margin-top:8px;
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- 导语 ---------- */
.intro{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.intro-grid{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:56px;
  align-items:start;
}
.intro-copy p{
  color:var(--muted);
  font-size:16px;
  margin-bottom:18px;
  line-height:1.95;
}
.intro-copy p:last-child{margin-bottom:0;}
.intro-copy strong{color:var(--ink);font-weight:700;}

/* ---------- 双栏图文 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.split + .split{margin-top:96px;}
.split.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
  background:var(--ink);
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.split-media:hover img{transform:scale(1.04);}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  border:1px solid rgba(255,255,255,.12);
  border-radius:20px;
  pointer-events:none;
}
.split-body h3{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  line-height:1.3;
  color:var(--ink);
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.split-body p{
  color:var(--muted);
  font-size:16px;
  margin-bottom:16px;
}
.check-list{margin-top:22px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{
  color:var(--mint);
  font-size:14px;
  margin-top:6px;
  flex:0 0 auto;
}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--mint-soft);
  color:var(--ink);
  font-size:12.5px;
  font-weight:600;
  border-radius:999px;
  padding:6px 14px;
}
.badge.alt{background:#fff;border:1px solid var(--line);color:var(--muted);}

/* ---------- 编号通道列表 ---------- */
.channel-list{border-top:1px solid var(--line);margin-top:44px;}
.channel-row{
  display:grid;
  grid-template-columns:88px 1.1fr 1.6fr 44px;
  gap:24px;
  align-items:center;
  padding:30px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease),padding-left .22s var(--ease);
}
.channel-row:hover{background:rgba(216,246,236,.45);padding-left:18px;}
.channel-num{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:800;
  color:var(--line);
  letter-spacing:-.02em;
  transition:color .22s var(--ease);
}
.channel-row:hover .channel-num{color:var(--mint);}
.channel-row h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
}
.channel-row p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}
.channel-row .go{
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.channel-row:hover .go{background:var(--ink);color:var(--mint);transform:translateX(2px);}

/* ---------- 提示条 ---------- */
.notice{
  margin-top:52px;
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--clay);
  border-radius:var(--r-m);
  padding:22px 26px;
  box-shadow:var(--shadow-1);
}
.notice i{color:var(--clay);font-size:18px;margin-top:5px;}
.notice p{font-size:14.5px;color:var(--muted);}
.notice b{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  background:transparent;
  border:0;
  text-align:left;
  display:flex;
  align-items:center;
  gap:18px;
  padding:24px 10px;
  min-height:64px;
  cursor:pointer;
  transition:background-color .18s var(--ease);
  border-radius:12px;
}
.faq-q:hover{background:rgba(216,246,236,.55);}
.faq-idx{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  color:var(--muted);
  flex:0 0 auto;
  width:30px;
}
.faq-text{
  flex:1 1 auto;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.faq-icon{
  flex:0 0 auto;
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--ink);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--mint);border-color:var(--mint);color:var(--ink);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  border-left:3px solid var(--mint);
  margin:0 0 22px 48px;
  padding:2px 0 2px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  background:var(--ink);
  color:var(--white-soft);
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,211,160,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(28px,4vw,48px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  color:#fff;
  max-width:620px;
}
.cta-band p{
  margin-top:20px;
  color:#C9DBD6;
  font-size:16px;
  max-width:560px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:16px;
  align-items:flex-start;
}
.cta-actions .btn{width:100%;justify-content:center;}
.cta-meta{
  margin-top:22px;
  display:flex;
  gap:26px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:#9FBDB5;
}
.cta-meta span{display:inline-flex;align-items:center;gap:8px;}
.cta-meta i{color:var(--mint);font-size:12px;}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink);
  color:#C9DBD6;
  padding:80px 0 0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:24px 32px;
  padding-bottom:56px;
}
.footer h4{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:-.01em;
}
.footer p{color:#9FBDB5;font-size:14px;line-height:1.85;max-width:300px;}
.footer-links li{margin-bottom:11px;}
.footer-links a,
.footer-contact li{
  color:#C9DBD6;
  font-size:14px;
  transition:color .18s var(--ease);
}
.footer-links a:hover{color:var(--mint);text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;align-items:flex-start;}
.footer-contact i{color:var(--mint);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8FAFA7;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-chips{justify-content:flex-start;}
  .nav-chip{padding:8px 11px;font-size:13.5px;}
  .nav-chip i{width:24px;height:24px;font-size:11.5px;}
}
@media (max-width:1024px){
  .section{padding:88px 0;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-chips{
    position:absolute;
    left:0;
    right:0;
    top:calc(100% + 10px);
    display:none;
    grid-template-columns:1fr 1fr;
    gap:8px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    box-shadow:var(--shadow-3);
    padding:14px;
    z-index:60;
  }
  .nav-chips.is-open{display:grid;}
  .nav-chip{justify-content:flex-start;background:var(--paper);}
  .nav-chip.is-active::after{left:14px;}
  .nav-card{position:relative;flex-wrap:wrap;}
  .nav-cta .btn{padding:12px 20px;font-size:14px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .split{gap:40px;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .hero{padding:52px 0 64px;}
  .hero-stats{grid-template-columns:1fr;gap:20px;padding-top:22px;}
  .hero-stats div{border-right:0;border-bottom:1px solid var(--line);padding:0 0 16px;}
  .hero-stats div:last-child{border-bottom:0;padding-bottom:0;}
  .split{grid-template-columns:1fr;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:64px;}
  .channel-row{grid-template-columns:56px 1fr 44px;gap:16px;padding:24px 4px;}
  .channel-row p{grid-column:2 / span 1;}
  .channel-num{font-size:24px;}
  .faq-a-inner{margin-left:32px;}
  .cta-band{padding:72px 0;}
  .footer{padding-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px;}
  .brand-text span{font-size:11px;}
  .nav-cta{width:100%;}
  .nav-cta .btn{width:100%;justify-content:center;}
  .nav-chips{grid-template-columns:1fr;}
  .hero h1{font-size:clamp(30px,9vw,42px);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .channel-row{grid-template-columns:44px 1fr;gap:12px;}
  .channel-row .go{display:none;}
  .faq-text{font-size:15.5px;}
  .cta-meta{flex-direction:column;gap:10px;}
}