/* roulang page: index */
:root{
  --bs-primary:#0E7C6B;
  --bs-primary-rgb:14,124,107;
  --bs-body-bg:#FAF8F4;
  --bs-body-color:#14201E;
  --bs-border-color:#E7E3DA;
  --bs-link-color:#0E7C6B;
  --bs-link-hover-color:#0B5F53;
  --bs-border-radius:12px;
  --bs-border-radius-lg:20px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --brand:#0E7C6B;
  --brand-dark:#0B5F53;
  --brand-light:#14A085;
  --brand-soft:#E2F3EF;
  --warm:#F5A524;
  --warm-soft:#FFF3DC;
  --coral:#F0524C;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E3DA;
  --ink:#14201E;
  --ink-2:#3A4744;
  --ink-3:#6B7A76;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#17A98D 55%,#3FC7A8 100%);
  --grad-badge:linear-gradient(135deg,#F5A524 0%,#F0763C 100%);
  --r-xl:24px;
  --r-lg:20px;
  --r-img:16px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(20,32,30,.04),0 12px 32px -12px rgba(14,124,107,.18);
  --sh-2:0 20px 40px -16px rgba(14,124,107,.30);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
.track{max-width:740px;}
.sec{padding:96px 0;}
.sec-tight{padding:72px 0;}
@media (max-width:991px){.sec{padding:72px 0;}.sec-tight{padding:56px 0;}}
@media (max-width:575px){.sec{padding:56px 0;}.sec-tight{padding:44px 0;}.container{padding-left:16px;padding-right:16px;}}

.sec-head{margin-bottom:40px;}
.sec-title{
  position:relative;
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  padding-left:18px;
  letter-spacing:-.01em;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.34em;
  width:8px;height:22px;
  border-radius:4px;
  background:var(--grad-brand);
}
.sec-sub{margin-top:12px;font-size:15px;color:var(--ink-3);max-width:720px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;border-radius:var(--r-btn);padding:14px 26px;border:1px solid transparent;cursor:pointer;transition:all .2s ease-out;line-height:1.2;}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px -12px rgba(14,124,107,.75);}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);}
.link-more i{transition:transform .2s ease-out;}
.link-more:hover i{transform:translateX(4px);}
.link-more:hover{text-decoration:underline;text-underline-offset:4px;}

/* ============ header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;
  background:rgba(250,248,244,.92);
  border-bottom:1px solid transparent;
  transition:height .25s ease-out,background .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.site-header.scrolled{height:64px;background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 24px -18px rgba(20,32,30,.5);}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--brand-dark);}
.brand-ring{
  position:relative;width:32px;height:32px;border-radius:50%;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;
}
.brand-ring::before{content:"";position:absolute;inset:6px;border:1.5px solid rgba(255,255,255,.85);border-radius:50%;}
.brand-ring::after{content:"";position:absolute;inset:11px;background:#fff;border-radius:50%;}
.brand-text{font-size:18px;letter-spacing:.5px;line-height:1;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav .nav-link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--ink-2);border-radius:10px;
}
.main-nav .nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.main-nav .nav-link.active{color:var(--brand);font-weight:600;}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);
}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
}
.hamburger:hover{border-color:var(--brand);color:var(--brand);}
.drawer{
  position:fixed;top:72px;left:0;right:0;bottom:0;z-index:1029;background:#fff;
  padding:20px 16px 100px;transform:translateY(-12px);opacity:0;visibility:hidden;transition:all .22s ease-out;
  border-top:1px solid var(--line);overflow-y:auto;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;padding:16px 14px;border-radius:12px;
  color:var(--ink-2);font-size:16px;font-weight:500;border-bottom:1px solid #F2EFE8;
}
.drawer a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.drawer a i{color:var(--ink-3);font-size:13px;}
@media (min-width:992px){.drawer{display:none;}}

/* ============ mobile tabbar ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1031;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);
  display:flex;align-items:stretch;
  box-shadow:0 -8px 24px -20px rgba(20,32,30,.6);
}
.mobile-tabbar .tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--ink-3);font-size:10px;line-height:1;
}
.mobile-tabbar .tab-item i{font-size:17px;}
.mobile-tabbar .tab-item.active{color:var(--brand);font-weight:600;}
.mobile-tabbar .tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--grad-brand);
}
@media (max-width:991px){body{padding-bottom:80px;}}
@media (min-width:992px){.mobile-tabbar{display:none;}}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:var(--bg);}
.hero::after{
  content:"";position:absolute;top:-220px;right:-160px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,107,.14) 0%,rgba(14,124,107,0) 68%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
@media (max-width:991px){.hero-grid{grid-template-columns:1fr;gap:40px;}.hero{padding:48px 0 64px;}}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;letter-spacing:.4px;
}
.pill i{font-size:11px;}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.02em;margin:20px 0 0;
}
.hero h1 .hl{
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px;}
.hero-cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}
.trust{display:flex;gap:22px;flex-wrap:wrap;margin-top:26px;}
.trust span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);}
.trust i{color:var(--brand);font-size:13px;}
.hero-visual{position:relative;}
.hero-visual .ring{
  position:absolute;border-radius:50%;border:1px solid rgba(14,124,107,.18);pointer-events:none;
}
.hero-visual .ring.r1{inset:-26px -26px auto auto;width:180px;height:180px;}
.hero-visual .ring.r2{inset:auto auto -34px -34px;width:220px;height:220px;border-color:rgba(245,165,36,.22);}
.hero-visual img{
  position:relative;z-index:2;width:100%;height:400px;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-1);
}
@media (max-width:991px){.hero-visual img{height:300px;}}
@media (max-width:575px){.hero-visual img{height:230px;}.hero-cta .btn{flex:1 1 100%;}}

/* ============ stats ============ */
.stats{
  position:relative;overflow:hidden;
  background:#14201E;color:#fff;padding:72px 0;border-radius:0;
}
.stats::before{
  content:"";position:absolute;inset:0;background:var(--grad-brand);opacity:.22;pointer-events:none;
}
.stats .container{position:relative;z-index:2;}
.stats-head{margin-bottom:34px;}
.stats-head h2{color:#fff;font-size:clamp(22px,2.4vw,30px);position:relative;padding-left:18px;}
.stats-head h2::before{content:"";position:absolute;left:0;top:.34em;width:8px;height:20px;border-radius:4px;background:linear-gradient(135deg,#F5A524,#3FC7A8);}
.stats-head p{margin-top:10px;color:rgba(255,255,255,.72);font-size:14.5px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
@media (max-width:991px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
.stat-card{
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);
  border-radius:var(--r-lg);padding:24px 22px;transition:transform .2s ease-out,border-color .2s ease-out;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.34);}
.stat-ico{
  width:34px;height:34px;border-radius:50%;border:2px solid rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:#fff;margin-bottom:16px;
}
.stat-num{font-family:var(--mono);font-weight:700;font-size:clamp(28px,4vw,44px);line-height:1;color:#fff;}
.stat-num small{font-size:16px;font-weight:600;color:rgba(255,255,255,.66);margin-left:6px;}
.stat-desc{margin-top:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ============ matrix ============ */
.matrix-row{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.matrix-row + .matrix-row{margin-top:20px;}
.m-wide{grid-column:span 7;}
.m-narrow{grid-column:span 5;}
.m-narrow-first{grid-column:span 5;}
.m-wide-last{grid-column:span 7;}
@media (max-width:991px){
  .m-wide,.m-narrow,.m-narrow-first,.m-wide-last{grid-column:span 12;}
}
.m-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;
  box-shadow:0 1px 2px rgba(20,32,30,.04);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-soft);}
.m-geo{
  width:44px;height:44px;border-radius:50%;border:2px solid var(--brand);position:relative;
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:16px;margin-bottom:20px;flex:0 0 44px;
}
.m-geo::after{content:"";position:absolute;inset:7px;border:1px solid rgba(20,124,107,.35);border-radius:50%;}
.m-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px;}
.m-card p{font-size:15px;color:var(--ink-2);line-height:1.8;max-width:720px;}
.m-card .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;line-height:1.4;
}
.tag.warm{background:var(--warm-soft);color:#9A5B00;}
.m-card .link-more{margin-top:auto;padding-top:20px;}
.m-card .m-pic{
  width:100%;height:180px;object-fit:cover;border-radius:var(--r-img);margin-bottom:22px;
}
.m-card.wide{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;}
.m-card.wide .m-pic{margin:0;height:230px;}
@media (max-width:767px){
  .m-card.wide{grid-template-columns:1fr;}
  .m-card.wide .m-pic{height:180px;}
  .m-card{padding:24px;}
}

/* ============ compare ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 56px 1fr;gap:0;align-items:stretch;}
@media (max-width:767px){.compare-wrap{grid-template-columns:1fr;gap:16px;}}
.cmp-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:0 1px 2px rgba(20,32,30,.04);}
.cmp-card.primary{border-color:rgba(14,124,107,.34);box-shadow:var(--sh-1);}
.cmp-label{
  font-size:13px;letter-spacing:1px;color:var(--ink-3);font-weight:600;margin-bottom:20px;
  display:flex;align-items:center;gap:8px;
}
.cmp-card.primary .cmp-label{color:var(--brand-dark);}
.cmp-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.75;padding:9px 0;}
.cmp-list li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--ink-3);margin-top:.7em;flex:0 0 4px;}
.cmp-card.primary .cmp-list li::before{background:var(--brand);}
.bar{margin-top:22px;}
.bar-item + .bar-item{margin-top:14px;}
.bar-top{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-3);margin-bottom:7px;}
.bar-track{height:8px;border-radius:999px;background:#F1EDE4;overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--grad-brand);}
.bar-fill.dim{background:linear-gradient(135deg,#B9C4C1,#8E9C98);}
.cmp-mid{position:relative;display:flex;align-items:center;justify-content:center;}
.cmp-mid::before{content:"";position:absolute;top:12%;bottom:12%;width:2px;background:var(--grad-brand);border-radius:2px;opacity:.75;}
.cmp-mid span{
  position:relative;z-index:2;width:44px;height:44px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 22px -10px rgba(14,124,107,.8);font-size:15px;
}
@media (max-width:767px){
  .cmp-mid{height:44px;}
  .cmp-mid::before{top:50%;left:12%;right:12%;bottom:auto;width:auto;height:2px;}
  .cmp-mid span{transform:rotate(90deg);}
}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:991px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.news-grid{grid-template-columns:1fr;}}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-soft);}
.news-thumb{display:block;height:176px;overflow:hidden;background:var(--grad-brand);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;font-weight:600;margin:12px 0 10px;}
.news-body h3 a{
  color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{
  font-size:14.5px;color:var(--ink-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid #F2EFE8;font-size:13px;color:var(--ink-3);
}
.news-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.badge-cat{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;line-height:1.4;
}
.pager{margin-top:40px;display:flex;justify-content:center;gap:8px;}
.pager .pg{
  min-width:40px;height:40px;padding:0 12px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--ink-2);
}
.pager .pg:hover{border-color:var(--brand);color:var(--brand);}
.pager .pg.current{background:var(--grad-brand);color:#fff;border-color:transparent;}
.news-empty{
  grid-column:1/-1;text-align:center;padding:56px 20px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-xl);
}
.empty-ring{
  display:inline-block;width:52px;height:52px;border-radius:50%;border:2px solid var(--brand-soft);
  border-top-color:var(--brand);margin-bottom:16px;
}
.news-empty p{color:var(--ink-3);font-size:15px;margin-bottom:20px;}

/* ============ faq ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:var(--r-lg) !important;background:var(--card);
  overflow:hidden;box-shadow:0 1px 2px rgba(20,32,30,.04);transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.accordion-item:hover{border-color:var(--brand-soft) !important;box-shadow:var(--sh-1);}
.accordion-button{
  font-size:17px;font-weight:700;color:var(--ink);background:var(--card);padding:20px 62px 20px 24px;
  border-radius:var(--r-lg) !important;box-shadow:none !important;line-height:1.5;
}
.accordion-button:not(.collapsed){
  color:var(--brand-dark);background:#FBFDFC;box-shadow:inset 3px 0 0 var(--brand) !important;
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand),0 0 0 2px rgba(14,124,107,.28) !important;outline:none;}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;line-height:1;
  transition:background .2s ease-out,color .2s ease-out;
}
.accordion-button:not(.collapsed)::before{content:"−";background:var(--grad-brand);color:#fff;}
.accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);background:#FBFDFC;}

/* ============ form ============ */
.contact{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
@media (max-width:991px){.contact-grid{grid-template-columns:1fr;gap:32px;}}
.trust-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);padding:9px 0;line-height:1.75;}
.trust-list i{color:var(--brand);font-size:15px;margin-top:.35em;}
.form-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:0 1px 2px rgba(20,32,30,.04);}
@media (max-width:575px){.form-card{padding:22px;}}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.form-label .req{color:var(--coral);margin-left:4px;}
.form-control,.form-select{
  height:48px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:15px;padding:0 14px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
textarea.form-control{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,124,107,.16);outline:none;background:#fff;
}
.form-control.is-invalid,.form-select.is-invalid{border-color:var(--coral);box-shadow:0 0 0 3px rgba(240,82,76,.14);}
.err-msg{display:none;color:var(--coral);font-size:13px;margin-top:6px;}
.err-msg.show{display:block;}
.form-row{margin-bottom:18px;}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:10px;}
.form-success{
  display:none;margin-bottom:20px;padding:14px 18px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand-dark);font-size:14.5px;font-weight:600;
}
.form-success.show{display:block;}

/* ============ footer ============ */
.site-footer{
  position:relative;background:#14201E;color:rgba(255,255,255,.72);padding:72px 0 26px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
@media (max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr 1fr;gap:26px;}}
.foot-brand .brand-text{color:#fff;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.foot-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.4px;}
.foot-col li{margin-bottom:11px;}
.foot-col a{color:rgba(255,255,255,.68);font-size:14px;}
.foot-col a:hover{color:#3FC7A8;}
.foot-col .mono{font-family:var(--mono);font-size:13.5px;color:rgba(255,255,255,.6);}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.foot-bottom a{color:rgba(255,255,255,.6);}
.foot-bottom a:hover{color:#3FC7A8;}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .m-card:hover,.news-card:hover,.stat-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#0E7C6B;
  --brand-dark:#0B5F53;
  --brand-light:#14A085;
  --brand-soft:#E2F3EF;
  --amber:#F5A524;
  --amber-soft:#FFF3DC;
  --coral:#F0524C;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E3DA;
  --ink:#14201E;
  --ink-2:#3A4744;
  --ink-3:#6B7A76;
  --grad-brand:linear-gradient(135deg,#0E7C6B 0%,#17A98D 55%,#3FC7A8 100%);
  --grad-badge:linear-gradient(135deg,#F5A524 0%,#F0763C 100%);
  --grad-deep:linear-gradient(135deg,rgba(20,32,30,.94),rgba(11,95,83,.86));
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-btn:12px;
  --sh-sm:0 1px 2px rgba(20,32,30,.04);
  --sh-md:0 12px 32px -12px rgba(14,124,107,.18);
  --sh-lg:0 20px 40px -16px rgba(14,124,107,.30);
  --sec-y:clamp(56px,8vw,96px);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","Roboto Mono",Menlo,Consolas,monospace;

  --bs-primary:#0E7C6B;
  --bs-link-color:#0E7C6B;
  --bs-link-hover-color:#0B5F53;
  --bs-body-bg:#FAF8F4;
  --bs-body-color:#14201E;
  --bs-body-font-family:var(--font-cn);
  --bs-border-color:#E7E3DA;
  --bs-border-radius:12px;
  --bs-border-radius-lg:20px;
  --bs-emphasis-color:#14201E;
}

*,*::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:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(250,248,244,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease-out,background .25s ease-out,border-color .25s ease-out;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -18px rgba(20,32,30,.45);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
  transition:height .25s ease-out;
}
.site-header.is-scrolled .header-inner{height:64px;}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-ring{
  position:relative;
  width:24px;
  height:24px;
  border-radius:50%;
  border:2px solid var(--brand);
  display:inline-block;
  flex:0 0 24px;
}
.brand-ring::after{
  content:"";
  position:absolute;
  inset:5px;
  border-radius:50%;
  border:1.5px solid var(--amber);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
}
.brand:hover .brand-text{color:var(--brand-dark);}

.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.main-nav .nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:10px;
  transition:background .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.main-nav .nav-link:hover{
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.main-nav .nav-link.active{
  color:var(--brand);
  font-weight:600;
}
.main-nav .nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-toggle{
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:17px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-light);}

.nav-drawer{
  position:absolute;
  left:16px;
  right:16px;
  top:calc(100% + 8px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-lg);
  overflow:hidden;
  max-height:0;
  opacity:0;
  visibility:hidden;
  transition:max-height .28s ease-out,opacity .2s ease-out,visibility .2s;
}
.nav-drawer.open{
  max-height:420px;
  opacity:1;
  visibility:visible;
}
.nav-drawer a{
  display:block;
  padding:15px 20px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.nav-drawer a:hover{background:var(--brand-soft);color:var(--brand-dark);}

@media (max-width:575px){
  .brand-text{font-size:17px;}
  .header-inner{gap:12px;}
}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 26px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--grad-brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  box-shadow:0 10px 24px -14px rgba(14,124,107,.75);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-brand:hover{
  color:#fff;
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:var(--sh-lg);
}
.btn-brand:active{transform:translateY(0);}
.btn-brand.btn-sm{padding:11px 20px;font-size:14px;}

.btn-outline-ink{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  border:1px solid var(--ink);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .2s ease-out,transform .2s ease-out,color .2s ease-out;
}
.btn-outline-ink:hover{
  background:var(--brand-soft);
  color:var(--brand-dark);
  transform:translateY(-2px);
}
.btn-outline-ink.btn-sm{padding:11px 20px;font-size:14px;}

.btn-ghost-light{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.4);
  background:transparent;
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .2s ease-out,transform .2s ease-out;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{transition:transform .2s ease-out;}
.link-arrow:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 通用徽章/标签 ============ */
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  line-height:1.5;
}
.pill-amber{background:var(--amber-soft);color:#A2650A;}
.pill-outline{background:#fff;border:1px solid var(--line);color:var(--ink-2);font-weight:500;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-3);
  font-size:12.5px;
  line-height:1.5;
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  padding-top:28px;
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C6C1B6;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:26px 0 var(--sec-y);
}
.hero::before{
  content:"";
  position:absolute;
  top:-160px;
  right:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,107,.14),rgba(14,124,107,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
  padding-top:36px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.2;
  margin:18px 0 16px;
}
.hero-lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:720px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-figure{
  position:relative;
}
.hero-figure img{
  width:100%;
  border-radius:var(--r-lg);
  object-fit:cover;
  aspect-ratio:4/3;
  box-shadow:var(--sh-md);
}
.hero-figure::after{
  content:"";
  position:absolute;
  right:-34px;
  bottom:-34px;
  width:150px;
  height:150px;
  border-radius:50%;
  border:1px solid rgba(14,124,107,.22);
  pointer-events:none;
}
.hero-figure::before{
  content:"";
  position:absolute;
  right:-8px;
  bottom:-8px;
  width:96px;
  height:96px;
  border-radius:50%;
  border:1px solid rgba(245,165,36,.28);
  pointer-events:none;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.trust-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  color:var(--ink-3);
}
.trust-item i{color:var(--brand);font-size:13px;}

@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:34px;padding-top:24px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-figure::after,.hero-figure::before{display:none;}
}

/* ============ 章节标题 ============ */
.section{padding:var(--sec-y) 0;}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  display:flex;
  align-items:center;
  gap:12px;
}
.section-head h2::before{
  content:"";
  width:8px;
  height:26px;
  border-radius:4px;
  background:var(--grad-brand);
  flex:0 0 8px;
}
.section-head p{
  margin-top:14px;
  font-size:15.5px;
  color:var(--ink-3);
  max-width:720px;
}

/* ============ 要点小卡 ============ */
.point-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.point-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:30px 26px;
  box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  display:flex;
  flex-direction:column;
  height:100%;
}
.point-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-md);
  border-color:#BFE3DA;
}
.p-icon{
  position:relative;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid rgba(14,124,107,.35);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand);
  font-size:17px;
  margin-bottom:20px;
}
.p-icon::after{
  content:"";
  position:absolute;
  inset:7px;
  border-radius:50%;
  border:1px dashed rgba(245,165,36,.5);
}
.point-card h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  margin-bottom:12px;
}
.point-card p{
  font-size:15px;
  color:var(--ink-2);
  max-width:720px;
  margin-bottom:18px;
}
.point-card .tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:auto;
}
@media (max-width:991px){
  .point-grid{grid-template-columns:1fr 1fr;gap:20px;}
}
@media (max-width:575px){
  .point-grid{grid-template-columns:1fr;}
  .point-card{padding:24px 20px;}
}

/* ============ 主题标签区 ============ */
.topic-band{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(26px,4vw,44px);
  box-shadow:var(--sh-sm);
}
.topic-band h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;
  display:flex;
  align-items:center;
  gap:12px;
}
.topic-band h2::before{
  content:"";
  width:8px;
  height:24px;
  border-radius:4px;
  background:var(--grad-brand);
  flex:0 0 8px;
}
.topic-band p{
  margin-top:14px;
  font-size:15.5px;
  color:var(--ink-3);
  max-width:720px;
}
.topic-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.topic-tags .tag{
  font-size:13px;
  padding:8px 16px;
  color:var(--ink-2);
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.topic-tags .tag:hover{
  background:var(--brand-soft);
  border-color:#BFE3DA;
  color:var(--brand-dark);
  transform:translateY(-2px);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  background:#fff;
  padding:20px 24px;
  border:0;
  box-shadow:none;
  transition:background .22s ease-out,color .22s ease-out;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--brand-soft);
  color:var(--brand-dark);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button:focus{
  box-shadow:inset 3px 0 0 var(--brand),0 0 0 3px rgba(14,124,107,.18);
}
.faq-accordion .accordion-button::after{
  content:"+";
  width:28px;
  height:28px;
  flex:0 0 28px;
  margin-left:auto;
  border-radius:50%;
  border:1px solid var(--line);
  background-image:none;
  color:var(--brand);
  font-size:18px;
  font-weight:600;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.faq-accordion .accordion-body{
  padding:6px 24px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:760px;
}
@media (max-width:575px){
  .faq-accordion .accordion-button{font-size:16px;padding:17px 18px;}
  .faq-accordion .accordion-body{padding:4px 18px 20px;}
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  padding:clamp(32px,5vw,56px);
  background-image:linear-gradient(135deg,rgba(11,95,83,.94),rgba(14,124,107,.86)),url('/assets/images/coverpic/cover-3.png');
  background-size:cover;
  background-position:center;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  color:#fff;
  box-shadow:var(--sh-md);
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.8vw,32px);
  line-height:1.3;
  max-width:640px;
}
.cta-band p{
  margin-top:12px;
  font-size:15.5px;
  color:rgba(255,255,255,.85);
  max-width:640px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-band .btn-white{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  border:0;
  background:#fff;
  color:var(--brand-dark);
  font-size:15px;
  font-weight:700;
  line-height:1;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.cta-band .btn-white:hover{
  transform:translateY(-2px);
  color:var(--brand-dark);
  box-shadow:0 16px 32px -16px rgba(0,0,0,.45);
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:var(--sec-y);
  background:var(--ink);
  background-image:linear-gradient(135deg,rgba(14,124,107,.22),rgba(20,32,30,0) 62%);
  color:rgba(255,255,255,.78);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:var(--grad-brand);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr 1.15fr;
  gap:36px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand .brand-text{color:#fff;}
.foot-brand .brand-ring{border-color:#3FC7A8;}
.foot-brand p{
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.68);
  max-width:340px;
}
.foot-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul li a{
  color:rgba(255,255,255,.72);
  font-size:14.5px;
}
.foot-col ul li a:hover{color:#3FC7A8;}
.foot-col ul li .mono{
  font-size:14px;
  color:rgba(255,255,255,.66);
}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(255,255,255,.55);
}
.foot-bottom a{color:rgba(255,255,255,.72);}
.foot-bottom a:hover{color:#3FC7A8;}
@media (max-width:991px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:575px){
  .site-footer{padding:48px 0 24px;}
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:1050;
  display:flex;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -20px rgba(20,32,30,.5);
  padding-bottom:env(safe-area-inset-bottom);
  height:calc(60px + env(safe-area-inset-bottom));
}
.mobile-tabbar a{
  position:relative;
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:10px;
  color:var(--ink-3);
  letter-spacing:.02em;
  transition:color .2s ease-out;
}
.mobile-tabbar a i{font-size:18px;}
.mobile-tabbar a.active{color:var(--brand);font-weight:600;}
.mobile-tabbar a.active::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:30px;
  height:3px;
  border-radius:0 0 3px 3px;
  background:var(--grad-brand);
}
.mobile-tabbar a:hover{color:var(--brand-dark);}
@media (min-width:992px){
  .mobile-tabbar{display:none;}
  body{padding-bottom:0;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .point-card:hover,.btn-brand:hover,.btn-outline-ink:hover{transform:none;}
}

/* roulang page: article */
:root{
  --bs-primary:#0E7C6B;
  --bs-primary-rgb:14,124,107;
  --bs-body-color:#14201E;
  --bs-body-bg:#FAF8F4;
  --bs-border-color:#E7E3DA;
  --bs-border-radius:12px;
  --bs-border-radius-lg:20px;
  --bs-link-color:#0E7C6B;
  --bs-link-hover-color:#0B5F53;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;

  --brand:#0E7C6B;
  --brand-dark:#0B5F53;
  --brand-light:#14A085;
  --brand-soft:#E2F3EF;
  --amber:#F5A524;
  --amber-soft:#FFF3DC;
  --coral:#F0524C;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E3DA;
  --line-soft:#BFE4DA;
  --ink:#14201E;
  --ink-2:#3A4744;
  --ink-3:#6B7A76;
  --grad:linear-gradient(135deg,#0E7C6B 0%,#17A98D 55%,#3FC7A8 100%);
  --grad-warm:linear-gradient(135deg,#F5A524 0%,#F0763C 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(20,32,30,.04),0 12px 32px -12px rgba(14,124,107,.18);
  --sh-2:0 20px 40px -16px rgba(14,124,107,.30);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"DIN Alternate","Roboto Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--brand-dark)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,248,244,.94);
  border-bottom:1px solid transparent;
  transition:background .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.site-header.scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 10px 26px -20px rgba(20,32,30,.55);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease-out}
.site-header.scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink);letter-spacing:.2px}
.brand:hover{color:var(--ink)}
.brand-ring{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--grad);
}
.brand-ring::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  background:#FAF8F4;box-shadow:inset 0 0 0 2px rgba(255,255,255,.7);
}
.main-nav{align-items:center;gap:2px}
.main-nav .nav-link{
  position:relative;display:inline-block;padding:8px 13px;border-radius:10px;
  font-size:15px;color:var(--ink-2);transition:color .2s ease-out,background .2s ease-out;
}
.main-nav .nav-link:hover{color:var(--brand-dark);background:var(--brand-soft)}
.main-nav .nav-link.active{color:var(--brand-dark);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;
  padding:12px 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;
  color:#fff;background:var(--grad);
  box-shadow:0 12px 26px -16px rgba(14,124,107,.9);
  transition:transform .2s ease-out,filter .2s ease-out,box-shadow .2s ease-out;
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  padding:11px 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;
  background:#fff;border:1px solid var(--ink);color:var(--ink);
  transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;transition:border-color .2s ease-out,color .2s ease-out;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-dark)}
@media (max-width:991.98px){
  .header-inner{height:64px}
  body{padding-bottom:84px}
}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:1055;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(20,32,30,.45)}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-24px 0 48px -24px rgba(20,32,30,.5);
  animation:drawerIn .24s ease-out;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink-2)}
.drawer-panel a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;color:var(--ink-2);font-size:16px;font-weight:500;
  border:1px solid transparent;
}
.drawer-panel a.drawer-link:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--line-soft)}
.drawer-panel .drawer-cta{margin-top:14px}

/* 底部 Tab */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 26px -20px rgba(20,32,30,.6);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  height:60px;font-size:10px;color:var(--ink-3);letter-spacing:.2px;
}
.tab-item i{font-size:16px;line-height:1}
.tab-item:hover{color:var(--brand-dark)}
.tab-item.active{color:var(--brand-dark);font-weight:600}
.tab-item.active::before{
  content:"";position:absolute;top:0;width:24px;height:3px;border-radius:0 0 3px 3px;background:var(--grad);
}

/* ============ 文章头部 ============ */
.page-main{padding-top:26px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand-dark)}
.crumbs .sep{color:#C7C2B7}
.crumbs .current{
  max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-2);
}
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--line)}
.article-head-top{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}
.article-title{
  font-size:clamp(28px,3.6vw,42px);line-height:1.25;font-weight:700;letter-spacing:.2px;
  max-width:820px;margin:16px 0 18px;
}
.article-title .hl{background:linear-gradient(180deg,transparent 62%,rgba(63,199,168,.35) 62%)}
.back-link{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);padding:8px 4px;border-bottom:1px solid transparent;
}
.back-link i{transition:transform .2s ease-out}
.back-link:hover{border-bottom-color:rgba(14,124,107,.4)}
.back-link:hover i{transform:translateX(-4px)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-3)}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:600;letter-spacing:.4px;
}
.badge-amber{background:var(--amber-soft);color:#9A6410}
.meta-dot{width:1px;height:12px;background:#D8D3C8}

/* ============ 正文 ============ */
.article-shell{padding:40px 0 88px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px;box-shadow:var(--sh-1);
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);max-width:760px}
.article-body p{margin:0 0 1.2em}
.article-body p:last-child{margin-bottom:0}
.article-body h2{
  position:relative;font-size:clamp(21px,2.3vw,26px);line-height:1.4;font-weight:700;color:var(--ink);
  margin:1.8em 0 .7em;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;border-radius:2px;background:var(--grad);
}
.article-body h3{
  position:relative;font-size:20px;line-height:1.45;font-weight:600;color:var(--ink);
  margin:1.5em 0 .6em;padding-left:18px;
}
.article-body h3::before{
  content:"";position:absolute;left:3px;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--amber);
}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.42em 0}
.article-body strong{color:var(--ink);font-weight:600}
.article-body a{border-bottom:1px solid rgba(14,124,107,.35)}
.article-body a:hover{border-bottom-color:var(--brand-dark)}
.article-body blockquote{
  margin:1.5em 0;padding:18px 24px;border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--brand-soft);color:var(--ink-2);font-size:16px;line-height:1.8;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-sm);margin:1.4em 0;width:100%;object-fit:cover}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:#F4F1EA;color:var(--ink);font-weight:600}
.article-body tr:last-child td{border-bottom:none}
.article-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.article-foot .note{font-size:13px;color:var(--ink-3)}
@media (max-width:767.98px){
  .article-card{padding:20px;border-radius:var(--r-md)}
  .article-body{font-size:16px}
}

/* 空态 */
.empty-state{text-align:center;padding:40px 16px 24px}
.empty-ring{
  display:block;width:62px;height:62px;margin:0 auto 18px;border-radius:50%;
  border:3px solid var(--brand-soft);border-top-color:var(--brand);
}
.empty-state h2{font-size:22px;font-weight:700;margin:0 0 10px}
.empty-state p{color:var(--ink-3);font-size:15px;margin:0 auto 22px;max-width:440px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:991.98px){.section{padding:72px 0}}
@media (max-width:575.98px){.section{padding:56px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-title{
  position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;
  margin:0;padding-left:18px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.34em;width:8px;height:8px;border-radius:50%;background:var(--grad);
}
.section-sub{margin:8px 0 0;font-size:15px;color:var(--ink-3);max-width:720px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.text-link i{transition:transform .2s ease-out}
.text-link:hover i{transform:translateX(4px)}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;align-items:center;gap:14px;padding:14px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-soft)}
.rec-thumb{width:88px;height:88px;flex:0 0 auto;border-radius:var(--r-sm);object-fit:cover;background:var(--brand-soft)}
.rec-card h3{font-size:16px;font-weight:600;line-height:1.45;margin:0 0 6px;color:var(--ink)}
.rec-card p{margin:0;font-size:13px;color:var(--ink-3);line-height:1.6}
.rec-meta{display:block;margin-top:6px;font-size:12px;color:var(--ink-3);font-family:var(--mono)}
@media (max-width:991.98px){.rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:767.98px){
  .rec-grid{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .rec-card{min-width:80%;scroll-snap-align:start}
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.open{border-color:var(--line-soft);box-shadow:var(--sh-1)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  padding:20px 22px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad);
  opacity:0;transition:opacity .2s ease-out;
}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:15px;font-weight:700;line-height:1;
  transition:background .2s ease-out,color .2s ease-out;
}
.faq-item.open .faq-icon{background:var(--grad);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:720px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);color:#fff;
  background:#14201E;
  padding:52px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-band .cta-bg{
  position:absolute;inset:0;background-image:linear-gradient(135deg,rgba(14,124,107,.82),rgba(23,169,141,.62),rgba(63,199,168,.5)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.28;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 0 0 44px rgba(255,255,255,.06);
}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin:0 0 12px;line-height:1.35}
.cta-content p{margin:0;font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:38px 26px}
  .cta-actions{justify-content:flex-start}
}

/* ============ Footer ============ */
.site-footer{position:relative;background:#14201E;color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:20px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{color:#fff;font-size:18px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-ring::after{background:#14201E}
.foot-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.foot-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;letter-spacing:.3px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:11px;font-size:14px;line-height:1.7}
.foot-col a{color:rgba(255,255,255,.72)}
.foot-col a:hover{color:#fff}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:rgba(255,255,255,.72)}
.foot-bottom a:hover{color:#fff}
.mono{font-family:var(--mono);font-size:13px}
@media (max-width:991.98px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-brand{grid-column:1/-1}
  .site-footer{padding:48px 0 24px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .rec-card:hover,.btn-brand:hover,.btn-ghost:hover,.btn-ghost-light:hover{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand:#0E7C6B;
  --brand-dark:#0B5F53;
  --brand-light:#14A085;
  --brand-soft:#E2F3EF;
  --amber:#F5A524;
  --amber-soft:#FFF3DC;
  --coral:#F0524C;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E3DA;
  --line-hover:#BFE4DA;
  --ink:#14201E;
  --ink-2:#3A4744;
  --ink-3:#6B7A76;
  --grad:linear-gradient(135deg,#0E7C6B 0%,#17A98D 55%,#3FC7A8 100%);
  --grad-badge:linear-gradient(135deg,#F5A524 0%,#F0763C 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(20,32,30,.04), 0 12px 32px -12px rgba(14,124,107,.18);
  --sh-hover:0 20px 40px -16px rgba(14,124,107,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --bs-primary:#0E7C6B;
  --bs-primary-rgb:14,124,107;
  --bs-link-color:#0E7C6B;
  --bs-link-hover-color:#0B5F53;
  --bs-border-radius:12px;
  --bs-border-radius-lg:20px;
  --bs-body-font-family:var(--font-sans);
  --bs-body-color:#3A4744;
  --bs-body-bg:#FAF8F4;
  --bs-border-color:#E7E3DA;
  --bs-accordion-border-color:#E7E3DA;
  --bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(14,124,107,.18);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  height:72px;
  background:rgba(250,248,244,.97);
  border-bottom:1px solid transparent;
  transition:height .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
}
.site-header.scrolled{
  height:64px;
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 8px 26px -18px rgba(20,32,30,.45);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--ink);
  font-size:19px;
  letter-spacing:.5px;
}
.brand:hover{color:var(--ink)}
.brand-ring{
  width:26px;height:26px;border-radius:50%;
  border:2px solid var(--brand);
  position:relative;flex:none;
  background:var(--grad);
  box-shadow:inset 0 0 0 5px #fff;
}
.brand-ring::after{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  border:1px solid rgba(14,124,107,.28);
}
.brand-text{white-space:nowrap}

.main-nav{align-items:center}
.main-nav .nav-link{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  margin:0 13px;
  font-size:15px;
  color:var(--ink-2);
  background:none;
  border:0;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  border-radius:2px;background:var(--grad);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--brand)}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--brand);font-weight:600}

.nav-toggle{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;cursor:pointer;transition:.2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

.nav-drawer{
  position:fixed;top:64px;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 24px 40px -24px rgba(20,32,30,.4);
  padding:12px 24px 20px;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .22s ease, transform .22s ease;
  z-index:1029;
}
.nav-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
.nav-drawer a{
  display:block;padding:13px 4px;font-size:15px;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.nav-drawer a:last-child{border-bottom:0}
.nav-drawer a.active{color:var(--brand);font-weight:600}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:0;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  cursor:pointer;box-shadow:0 10px 26px -14px rgba(14,124,107,.75);
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--ink);color:var(--ink);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease, transform .2s ease, color .2s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease, transform .2s ease;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.text-link i{transition:transform .2s ease}
.text-link:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px}
.text-link:hover i{transform:translateX(4px)}

/* ============ 首屏横幅 ============ */
.page-hero{padding:32px 0 0}
.hero-banner{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:400px;
  display:flex;
  align-items:flex-end;
  box-shadow:var(--sh-1);
}
.hero-banner > img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.hero-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(11,95,83,.9) 0%,rgba(14,124,107,.76) 52%,rgba(63,199,168,.55) 100%);
}
.hero-content{
  position:relative;z-index:2;
  padding:48px;
  max-width:820px;
  color:#fff;
}
.crumbs{
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.crumbs a{color:rgba(255,255,255,.92)}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs span.sep{margin:0 8px;opacity:.6}
.hero-content h1{
  color:#fff;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:.5px;
}
.hero-sub{
  margin-top:18px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
  max-width:660px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:500;
}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.sec-title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  line-height:1.25;
  padding-left:20px;
  position:relative;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.26em;
  width:8px;height:.96em;border-radius:4px;background:var(--grad);
}
.sec-sub{
  margin-top:14px;font-size:15px;line-height:1.85;
  color:var(--ink-3);max-width:740px;
}

/* ============ 宽卡两列 ============ */
.wide-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.wide-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.wide-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:var(--line-hover);
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.wide-card:hover .card-media img{transform:scale(1.04)}
.card-media .media-badge{
  position:absolute;top:16px;left:16px;
  padding:6px 13px;border-radius:999px;
  background:var(--grad-badge);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.5px;
}
.card-body{padding:28px 28px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:20px;font-weight:600}
.card-body p{font-size:15px;line-height:1.85;color:var(--ink-2);max-width:720px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;
}
.tag.amber{background:var(--amber-soft);color:#9A6210}
.card-foot{margin-top:auto;padding-top:8px}

/* ============ 混排：编号列表 + 图文卡 ============ */
.mix-grid{
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:24px;
  align-items:start;
}
.step-list{display:flex;flex-direction:column;gap:14px}
.step-item{
  display:flex;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--line-hover)}
.step-no{
  font-family:var(--font-mono);
  font-size:18px;font-weight:700;
  color:var(--brand);
  background:var(--brand-soft);
  width:44px;height:44px;border-radius:999px;
  display:grid;place-items:center;flex:none;
}
.step-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step-item p{font-size:15px;line-height:1.8;color:var(--ink-2)}

.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.side-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.side-card .side-body{padding:24px}
.side-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.side-card p{font-size:14px;line-height:1.8;color:var(--ink-3)}
.side-note{
  margin-top:16px;padding:14px 16px;border-radius:var(--r-btn);
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;line-height:1.7;
}

/* ============ 深色区块 ============ */
.dark-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:#14201E;
  padding:56px 48px;
  color:#fff;
}
.dark-panel::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,#0E7C6B 0%,#17A98D 55%,#3FC7A8 100%);
  opacity:.22;
}
.dark-inner{position:relative;z-index:2}
.dark-panel h2{color:#fff}
.dark-panel .sec-sub{color:rgba(255,255,255,.78)}
.dark-panel .sec-title::before{background:linear-gradient(135deg,#F5A524,#3FC7A8)}
.metric-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;margin-top:34px;
}
.metric-card{
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  border-radius:var(--r-md);
  padding:22px 22px 20px;
  transition:background .2s ease, transform .2s ease;
}
.metric-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.metric-num{
  font-family:var(--font-mono);
  font-size:clamp(28px,4vw,40px);
  font-weight:700;color:#fff;line-height:1;
  display:flex;align-items:baseline;gap:6px;
}
.metric-num .unit{font-size:16px;font-weight:500;color:rgba(255,255,255,.7)}
.metric-card p{margin-top:12px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.76)}

.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.cat-tags .tag{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);
  font-size:13px;font-weight:500;
  padding:8px 16px;
}

/* ============ FAQ ============ */
.faq-list{max-width:920px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-hover)}
.faq-item.open{box-shadow:var(--sh-1);border-color:var(--line-hover)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item.open .faq-q{box-shadow:inset 3px 0 0 var(--brand)}
.faq-icon{
  width:30px;height:30px;border-radius:50%;flex:none;
  border:1px solid var(--line);
  display:grid;place-items:center;
  color:var(--brand);font-size:13px;
  transition:background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.faq-item.open .faq-icon{
  background:var(--grad);color:#fff;border-color:transparent;transform:rotate(180deg);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease-out;
}
.faq-a p{
  padding:0 24px 22px;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}

/* ============ 双栏 CTA ============ */
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
  align-items:stretch;
}
.cta-dark{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:#14201E;
  padding:48px;
  color:#fff;
  display:flex;flex-direction:column;justify-content:center;
}
.cta-dark::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,#0E7C6B 0%,#17A98D 58%,#3FC7A8 100%);
  opacity:.22;
}
.cta-dark > *{position:relative;z-index:2}
.cta-dark h2{
  color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;
}
.cta-dark p{
  margin-top:14px;font-size:15px;line-height:1.85;
  color:rgba(255,255,255,.82);max-width:520px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px 32px;
  box-shadow:var(--sh-1);
}
.cta-side h3{font-size:18px;font-weight:600;margin-bottom:18px}
.entry-list{display:flex;flex-direction:column;gap:14px}
.entry-list li{display:flex;gap:14px;align-items:flex-start}
.entry-icon{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
  font-size:15px;
}
.entry-list strong{display:block;font-size:15px;color:var(--ink);font-weight:600}
.entry-list span{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:#14201E;
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:16px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer .brand{color:#fff;font-size:18px;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-ring{background:var(--grad);box-shadow:inset 0 0 0 5px #14201E}
.site-footer .brand-ring::after{border-color:rgba(255,255,255,.28)}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.foot-col h4{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.68)}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-col .mono{font-family:var(--font-mono);font-size:13px;color:rgba(255,255,255,.6)}
.foot-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.foot-bottom a{color:rgba(255,255,255,.75)}
.foot-bottom a:hover{color:#fff}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(20,32,30,.5);
  display:flex;
  z-index:1040;
}
.tab-item{
  flex:1;position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10px;color:var(--ink-3);
}
.tab-item i{font-size:16px}
.tab-item.active{color:var(--brand);font-weight:600}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--grad);
}
@media (max-width:991px){
  body{padding-bottom:80px}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .mix-grid{grid-template-columns:1.2fr .9fr}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .section.tight{padding:56px 0}
  .hero-content{padding:36px}
  .hero-banner{min-height:340px}
  .mix-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .dark-panel{padding:44px 32px}
  .cta-dark{padding:40px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wide-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head{margin-bottom:28px}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section.tight{padding:44px 0}
  .hero-banner{min-height:0;border-radius:var(--r-md)}
  .hero-content{padding:26px 22px}
  .hero-sub{font-size:15px}
  .card-body{padding:22px 20px}
  .step-item{padding:18px}
  .faq-q{padding:17px 18px;font-size:16px}
  .faq-a p{padding:0 18px 18px}
  .dark-panel{padding:34px 22px}
  .cta-dark{padding:32px 22px}
  .cta-side{padding:28px 22px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-brand{grid-column:1 / -1}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .wide-card:hover,.step-item:hover,.metric-card:hover{transform:none}
}