/* roulang page: index */
:root{
  --brand:#0F6E63;
  --brand-900:#0A4F47;
  --brand-050:#E6F1EF;
  --accent:#F2C200;
  --warn:#E4572E;
  --bg:#F6F4EF;
  --bg-alt:#EDF1EC;
  --dark:#0B1A18;
  --ink:#16211F;
  --ink-2:#4A5755;
  --ink-3:#7A8481;
  --line:#E3DED4;
  --surface:#FFFFFF;
  --ok:#2E9E6B;
  --err:#C8402A;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(22,33,31,.06),0 10px 26px -14px rgba(22,33,31,.22);
  --shadow-2:0 18px 40px -20px rgba(0,0,0,.5);
  --shadow-card:0 1px 2px rgba(22,33,31,.05),0 16px 34px -22px rgba(22,33,31,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--accent);color:var(--dark)}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-family:"Barlow Condensed","PingFang SC",system-ui,sans-serif;font-weight:700;letter-spacing:.02em;font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-900) 100%);
  color:#fff;font-size:19px;
  box-shadow:0 8px 18px -10px rgba(15,110,99,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text strong{font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;transition:color .25s}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.22em;color:rgba(255,255,255,.62);transition:color .25s}
.nav-main{display:flex;align-items:center;gap:30px;margin-left:12px}
.nav-main a{
  position:relative;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.84);padding:6px 2px;white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-4px;height:3px;
  background:var(--accent);border-radius:3px;transition:right .25s ease;
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after,.nav-main a.is-active::after{right:0}
.nav-main a.is-active{color:#fff}
.header-act{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:17px;
  transition:background-color .2s,color .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}

.btn-a,.btn-b,.btn-g{
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-a{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(15,110,99,.95)}
.btn-a:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:0 16px 28px -16px rgba(15,110,99,1)}
.btn-a i{transition:transform .22s ease}
.btn-a:hover i{transform:translateX(4px)}
.btn-b{background:#fff;color:var(--ink);border-color:rgba(22,33,31,.35)}
.btn-b:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-050)}
.btn-g{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-g:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{padding:0 20px;height:40px;font-size:14.5px}
.btn-accent{background:var(--accent);color:#2A2200;box-shadow:0 12px 26px -16px rgba(242,194,0,.9)}
.btn-accent:hover{background:#FFD733;color:#2A2200;transform:translateY(-1px)}
.btn-accent i{transition:transform .22s ease}
.btn-accent:hover i{transform:translateX(4px)}

.site-header.is-stuck{
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  -webkit-backdrop-filter:none;backdrop-filter:none;
}
.site-header.is-stuck .brand-text strong{color:var(--ink)}
.site-header.is-stuck .brand-text em{color:var(--ink-3)}
.site-header.is-stuck .nav-main a{color:var(--ink-2)}
.site-header.is-stuck .nav-main a:hover,.site-header.is-stuck .nav-main a.is-active{color:var(--brand)}
.site-header.is-stuck .icon-btn{background:var(--bg-alt);border-color:var(--line);color:var(--ink)}
.site-header.is-stuck .icon-btn:hover{background:var(--brand-050);color:var(--brand);border-color:var(--brand)}

.search-pop{
  position:absolute;top:88px;right:24px;width:min(420px,calc(100vw - 48px));
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow-1);padding:14px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.search-pop.is-open{opacity:1;visibility:visible;transform:none}
.search-pop form{display:flex;gap:8px}
.search-pop input{
  flex:1;height:44px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg);font-size:15px;
}
.search-pop input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,110,99,.12)}
.search-pop button{
  width:44px;height:44px;border-radius:50%;border:0;background:var(--brand);color:#fff;cursor:pointer;
}
.search-pop button:hover{background:var(--brand-900)}

.offcanvas.mobile-nav{background:var(--dark);color:#fff;width:min(340px,86vw)}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:20px 22px}
.mobile-nav .m-title{font-size:15px;letter-spacing:.2em;color:rgba(255,255,255,.6)}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.8}
.mobile-nav .offcanvas-body{padding:22px}
.m-links{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.m-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 16px;border-radius:var(--r);
  background:rgba(255,255,255,.05);font-size:16px;color:#fff;
}
.m-links a:hover,.m-links a.is-active{background:rgba(15,110,99,.6);color:#fff}
.m-links a i{color:var(--accent)}
.m-note{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.55)}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:88vh;padding:150px 0 90px;
  display:flex;align-items:center;overflow:hidden;background:var(--dark);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  transform:scale(1.03);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(11,26,24,.92) 0%,rgba(11,26,24,.72) 46%,rgba(11,26,24,.48) 100%);
}
.hero .wrap{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;margin-bottom:22px;
  background:rgba(242,194,0,.16);border:1px solid rgba(242,194,0,.42);
  color:var(--accent);font-size:13.5px;font-weight:600;letter-spacing:.06em;
}
.hero h1{
  font-size:44px;line-height:1.28;color:#fff;font-weight:700;
  letter-spacing:-.01em;margin-bottom:20px;max-width:15em;
}
.hero h1 .hl{
  color:var(--accent);
  box-shadow:inset 0 -12px 0 rgba(242,194,0,.16);
}
.hero-sub{
  font-size:18px;line-height:1.9;color:rgba(255,255,255,.8);
  max-width:34em;margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-trust span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.72);
}
.hero-trust i{color:var(--accent);font-size:15px}

.metrics{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:26px 24px 22px;
  box-shadow:var(--shadow-2);
}
.metrics-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;margin-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.2);
}
.metrics-head strong{color:#fff;font-size:15px;letter-spacing:.04em}
.live-dot{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--accent);letter-spacing:.1em;
}
.live-dot::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(242,194,0,.18);animation:pulse 1.8s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.metrics-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.metric{background:rgba(0,0,0,.22);border-radius:var(--r);padding:16px 16px 14px;border:1px solid rgba(255,255,255,.08)}
.metric b{display:block;font-size:34px;line-height:1.1;color:var(--accent)}
.metric span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.66)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:#fff}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--accent)}
.section-dark .eyebrow{color:var(--accent)}
.sec-head h2{font-size:32px;margin-bottom:16px}
.sec-head p{color:var(--ink-2);font-size:17px;line-height:1.9;margin:0}
.section-dark .sec-head p{color:rgba(255,255,255,.72)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head-row .sec-head{margin-bottom:0}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:15px;color:var(--brand);
  border-bottom:2px solid rgba(15,110,99,.25);padding-bottom:3px;
}
.link-more:hover{color:var(--brand-900);border-bottom-color:var(--brand)}
.link-more i{transition:transform .22s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ 卖点区 ============ */
.value-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:24px;align-items:stretch}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);border-color:#D6D0C3}
.value-tall{display:flex;flex-direction:column;background:var(--dark);border-color:rgba(255,255,255,.1);color:#fff}
.value-tall .vt-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.value-tall .vt-media img{width:100%;height:100%;object-fit:cover}
.value-tall .vt-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,26,24,.1),rgba(11,26,24,.82))}
.value-tall .vt-body{padding:30px 30px 34px;flex:1}
.value-tall h3{font-size:22px;color:#fff;margin-bottom:10px}
.value-tall p{color:rgba(255,255,255,.7);font-size:15.5px;line-height:1.85}
.num-list{margin-top:22px;border-top:1px solid rgba(255,255,255,.14)}
.num-list li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);
}
.num-list li:last-child{border-bottom:0;padding-bottom:0}
.num-list .n{font-size:26px;color:var(--accent);line-height:1.15;min-width:38px}
.num-list strong{display:block;color:#fff;font-size:16px;margin-bottom:3px}
.num-list span{font-size:14.5px;color:rgba(255,255,255,.6);line-height:1.75}
.value-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.side-card{padding:28px;display:flex;flex-direction:column;gap:10px}
.side-card .ic{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);font-size:22px;margin-bottom:4px;
}
.side-card h3{font-size:19px}
.side-card p{font-size:15px;color:var(--ink-2);line-height:1.85;margin:0}
.side-card .meta{margin-top:auto;padding-top:12px;font-size:13.5px;color:var(--ink-3);display:flex;gap:14px;flex-wrap:wrap}
.side-card .meta b{color:var(--brand);font-weight:700}

/* ============ 演示区 ============ */
.demo-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.demo-row+.demo-row{border-top:1px dashed var(--line)}
.demo-row.flip .demo-media{order:2}
.demo-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);aspect-ratio:16/11;
}
.demo-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.demo-row:hover .demo-media img{transform:scale(1.03)}
.demo-media .badge-float{
  position:absolute;left:18px;top:18px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  background:rgba(11,26,24,.78);color:var(--accent);border:1px solid rgba(242,194,0,.4);
}
.demo-body .step-no{
  font-size:14px;letter-spacing:.18em;color:var(--brand);font-weight:700;margin-bottom:12px;
}
.demo-body h3{font-size:22px;margin-bottom:14px}
.demo-body p{color:var(--ink-2);font-size:16px;line-height:1.9}
.demo-body .link-more{margin-top:8px}

/* ============ 证据区 ============ */
.proof-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:52px;
}
.proof-stats .ps b{display:block;font-size:44px;line-height:1;color:var(--accent);margin-bottom:10px}
.proof-stats .ps span{font-size:14.5px;color:rgba(255,255,255,.66);display:block;line-height:1.7}
.proof-cols{display:grid;grid-template-columns:1.15fr .85fr;gap:44px}
.partner-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.partner{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r);padding:20px 20px 18px;
  transition:background-color .25s ease,border-color .25s ease,transform .25s ease;
}
.partner:hover{background:rgba(15,110,99,.22);border-color:rgba(242,194,0,.35);transform:translateY(-2px)}
.partner strong{display:block;color:#fff;font-size:16px;margin-bottom:5px}
.partner span{font-size:13.5px;color:rgba(255,255,255,.58);line-height:1.7}
.partner i{color:var(--accent);font-size:19px;display:block;margin-bottom:10px}
.quote{
  position:relative;padding:24px 24px 22px 30px;border-radius:var(--r);
  background:rgba(255,255,255,.05);border-left:3px solid var(--accent);
  margin-bottom:16px;
}
.quote p{color:rgba(255,255,255,.88);font-size:15.5px;line-height:1.9;margin-bottom:12px}
.quote cite{font-style:normal;font-size:13.5px;color:rgba(255,255,255,.5);letter-spacing:.04em}
.quote::before{
  content:"”";position:absolute;right:20px;top:2px;font-size:56px;line-height:1;
  color:rgba(242,194,0,.24);font-family:Georgia,serif;
}

/* ============ 价格区 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:34px 28px 30px;display:flex;flex-direction:column;
  box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1)}
.price-card.featured{
  border:2px solid var(--brand);box-shadow:0 24px 50px -28px rgba(15,110,99,.6);
  transform:translateY(-8px);
}
.price-card.featured:hover{transform:translateY(-11px)}
.price-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  padding:5px 16px;border-radius:999px;background:var(--accent);color:#2A2200;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;white-space:nowrap;
}
.price-card h3{font-size:20px;margin-bottom:8px}
.price-card .desc{font-size:14.5px;color:var(--ink-3);line-height:1.75;min-height:52px}
.price-amount{display:flex;align-items:flex-end;gap:6px;margin:18px 0 22px;padding-bottom:20px;border-bottom:1px dashed var(--line)}
.price-amount b{font-size:46px;line-height:1;color:var(--ink)}
.price-card.featured .price-amount b{color:var(--brand)}
.price-amount span{font-size:14px;color:var(--ink-3);padding-bottom:5px}
.price-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7}
.price-list i{color:var(--ok);font-size:16px;margin-top:3px}
.price-list li.off{color:var(--ink-3)}
.price-list li.off i{color:#C3BDB0}
.price-card .btn-a,.price-card .btn-b{width:100%;justify-content:center}
.price-note{margin-top:26px;font-size:13.5px;color:var(--ink-3);text-align:center;line-height:1.8}

/* ============ 资讯区 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);border-color:#D6D0C3}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-media img{transform:scale(1.03)}
.news-badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:rgba(11,26,24,.8);color:var(--accent);border:1px solid rgba(242,194,0,.35);
}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17.5px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--brand)}
.news-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}
.news-foot .t{display:inline-flex;align-items:center;gap:6px}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);padding:40px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:var(--ink-3)}
.empty-state p{color:var(--ink-2);font-size:15.5px;margin:0}

/* ============ FAQ ============ */
.faq-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);background:var(--surface);
  overflow:hidden;box-shadow:0 1px 2px rgba(22,33,31,.04);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#D6D0C3;box-shadow:var(--shadow-card)}
.faq-item .q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item .q .ic{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--bg-alt);color:var(--ink-2);font-size:15px;
  transition:background-color .25s ease,color .25s ease,transform .25s ease;
}
.faq-item.open .q{color:var(--brand)}
.faq-item.open .q .ic{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-item .a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item .a .inner{padding:0 22px 22px;font-size:16px;line-height:1.85;color:var(--ink-2)}

/* ============ CTA 条 ============ */
.cta-band{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--accent),var(--brand));
}
.cta-band .wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:70px}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:30px;margin-bottom:10px;color:#fff}
.cta-inner p{color:rgba(255,255,255,.72);font-size:16px;margin:0;max-width:44em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.5)}
.footer-about{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.6);max-width:32em;margin:0}
.footer-col h4{font-size:15px;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.64)}
.footer-col a:hover{color:var(--accent)}
.sub-form{display:flex;gap:8px;margin-top:16px}
.sub-form input{
  flex:1;height:46px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14.5px;
}
.sub-form input::placeholder{color:rgba(255,255,255,.4)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,194,0,.16)}
.sub-form button{
  height:46px;padding:0 22px;border-radius:999px;border:0;cursor:pointer;
  background:var(--accent);color:#2A2200;font-weight:700;font-size:14.5px;white-space:nowrap;
  transition:background-color .2s ease,transform .2s ease;
}
.sub-form button:hover{background:#FFD733;transform:translateY(-1px)}
.footer-contact{font-size:14.5px;line-height:1.95;color:rgba(255,255,255,.62);margin-bottom:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 96px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.48);
}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1025;
  display:flex;align-items:center;gap:10px;padding:8px 8px 8px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  border:1px solid rgba(22,33,31,.08);
  box-shadow:var(--shadow-1);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta .fc-text{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.float-cta .fc-icon{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);font-size:18px;border:0;cursor:pointer;
  transition:background-color .2s ease,color .2s ease;
}
.float-cta .fc-icon:hover{background:var(--brand);color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .sec-head h2{font-size:28px}
  .proof-stats .ps b{font-size:38px}
  .value-grid{grid-template-columns:1fr}
  .value-side{grid-template-rows:auto auto}
  .demo-row{gap:36px}
  .proof-cols{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-main{display:none}
  .header-inner{height:68px;gap:16px}
  .site-header .icon-btn.d-none-mobile{display:none}
  .section{padding:72px 0}
  .hero{min-height:auto;padding:120px 0 72px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16.5px}
  .metrics{margin-top:44px}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-3px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-cols{grid-template-columns:1fr}
  .proof-stats{grid-template-columns:repeat(2,1fr);gap:28px}
  .demo-row{grid-template-columns:1fr;padding:34px 0;gap:24px}
  .demo-row.flip .demo-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding:60px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .hero h1{font-size:28px}
  .hero-cta{gap:10px}
  .btn-a,.btn-b,.btn-g{height:46px;padding:0 22px;font-size:15px;flex:1 1 auto;justify-content:center}
  .hero-cta .btn-a,.hero-cta .btn-b{width:100%}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:12px}
  .metric b{font-size:28px}
  .news-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;padding:10px 16px;
    justify-content:space-between;transform:translateY(100%);
    background:rgba(255,255,255,.92);border:0;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -16px rgba(22,33,31,.6);
  }
  .float-cta.is-show{transform:none}
  .float-cta .fc-text{font-size:13.5px}
  .site-footer{padding-bottom:0}
  .price-amount b{font-size:38px}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .sec-head h2{font-size:22px}
  .proof-stats{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .brand-text em{display:none}
  .sub-form{flex-direction:column}
  .sub-form button{width:100%}
}

/* roulang page: article */
:root{
  --brand:#0F6E63;
  --brand-900:#0A4F47;
  --accent:#F2C200;
  --warn:#E4572E;
  --bg:#F6F4EF;
  --bg-alt:#EDF1EC;
  --dark:#0B1A18;
  --ink:#16211F;
  --ink-2:#4A5755;
  --ink-3:#7A8481;
  --line:#E3DED4;
  --surface:#FFFFFF;
  --ok:#2E9E6B;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(22,33,31,.06),0 10px 26px -14px rgba(22,33,31,.22);
  --shadow-2:0 18px 40px -20px rgba(22,33,31,.38);
  --font-num:"Barlow Condensed","Oswald","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s,background-color .2s,border-color .2s}
a:hover{color:var(--brand-900)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p{margin:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.02em}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--pill);border:1.5px solid transparent;font-size:16px;font-weight:600;cursor:pointer;transition:transform .18s,background-color .2s,color .2s,border-color .2s,box-shadow .2s;white-space:nowrap}
.btn i{transition:transform .2s}
.btn:hover i.bi-arrow-right{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(15,110,99,.9)}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:#F1F7F5}
.btn-accent{background:var(--accent);color:#22180A}
.btn-accent:hover{background:#E0B200;color:#22180A;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  --nav-bg:rgba(255,255,255,.10);
  --nav-bd:rgba(255,255,255,.18);
  --nav-fg:rgba(255,255,255,.88);
  --nav-fg-strong:#fff;
  --nav-hover:rgba(255,255,255,.16);
  --logo-fg:#fff;
  --logo-sub:rgba(255,255,255,.7);
  background:var(--nav-bg);
  border-bottom:1px solid var(--nav-bd);
  backdrop-filter:blur(14px) saturate(160%);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  transition:background .25s,border-color .25s,box-shadow .25s;
}
.site-header.is-stuck,
body.page-inner .site-header{
  --nav-bg:#FFFFFF;
  --nav-bd:var(--line);
  --nav-fg:var(--ink-2);
  --nav-fg-strong:var(--ink);
  --nav-hover:rgba(15,110,99,.08);
  --logo-fg:var(--brand);
  --logo-sub:var(--ink-3);
  box-shadow:var(--shadow-1);
}
.nav-wrap{max-width:1200px;margin:0 auto;padding:0 24px;height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,var(--brand),var(--brand-900));color:#fff;font-size:20px;box-shadow:0 10px 20px -12px rgba(15,110,99,.95)}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:18px;font-weight:700;color:var(--logo-fg)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.26em;color:var(--logo-sub)}
.nav-main{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-main a{position:relative;padding:9px 14px;border-radius:var(--pill);font-size:15.5px;font-weight:500;color:var(--nav-fg);transition:color .2s,background-color .2s}
.nav-main a:hover{color:var(--nav-fg-strong);background:var(--nav-hover)}
.nav-main a.is-active{color:var(--brand)}
.nav-main a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--accent)}
body.page-inner .nav-main a.is-active{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--pill);background:rgba(255,255,255,.14);border:1px solid var(--nav-bd);transition:background .2s,border-color .2s}
body.page-inner .nav-search,.site-header.is-stuck .nav-search{background:#F4F6F3}
.nav-search i{color:var(--logo-sub);font-size:15px}
.nav-search input{width:150px;border:0;background:transparent;outline:none;font-size:14.5px;color:var(--nav-fg-strong)}
.nav-search input::placeholder{color:var(--logo-sub)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--nav-bd);background:transparent;color:var(--logo-fg);font-size:22px;align-items:center;justify-content:center}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{background:#fff;color:var(--ink);width:320px}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.nav-drawer .offcanvas-body{padding:20px 22px 30px}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-links a{padding:14px 16px;border-radius:var(--r);font-size:16.5px;font-weight:600;color:var(--ink);background:var(--bg-alt)}
.drawer-links a:hover,.drawer-links a.is-active{background:#E2EFEB;color:var(--brand-900)}
.drawer-note{font-size:13.5px;color:var(--ink-3);margin-top:18px}

/* ---------- 页面主体 ---------- */
body.page-inner{padding-top:76px}
main{display:block}
.article-top{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:34px 0 40px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#BCC4C0}
.crumbs .current{color:var(--ink-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-top h1{font-size:38px;line-height:1.3;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--ink-3)}
.meta-row .dot{color:#C3CBC7}
.meta-row .tag{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--pill);background:#fff;border:1px solid var(--line);color:var(--brand-900);font-weight:600;font-size:13px}
.meta-time{font-family:var(--font-num);font-size:16px;letter-spacing:.04em;color:var(--ink-2)}

/* ---------- 正文布局 ---------- */
.article-body{padding:54px 0 84px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{max-width:780px}
.cover-figure{margin:0 0 38px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.cover-figure img{width:100%;aspect-ratio:21/9;object-fit:cover}
.prose{font-size:17.5px;line-height:1.9;color:var(--ink-2)}
.prose>*:first-child{margin-top:0}
.prose h2{font-size:27px;color:var(--ink);margin:1.7em 0 .75em;padding-left:15px;border-left:4px solid var(--brand);line-height:1.35}
.prose h3{font-size:21px;color:var(--ink);margin:1.5em 0 .6em}
.prose h4{font-size:18px;color:var(--ink);margin:1.3em 0 .5em}
.prose p{margin:0 0 1.15em}
.prose ul{list-style:disc;padding-left:1.35em;margin:0 0 1.2em}
.prose ol{list-style:decimal;padding-left:1.45em;margin:0 0 1.2em}
.prose li{margin:.42em 0}
.prose strong{color:var(--ink)}
.prose a{color:var(--brand);border-bottom:1px solid rgba(15,110,99,.38)}
.prose a:hover{color:var(--brand-900);border-bottom-color:var(--brand-900)}
.prose blockquote{margin:1.5em 0;padding:20px 24px;background:var(--bg-alt);border-left:4px solid var(--brand);border-radius:0 var(--r) var(--r) 0;color:var(--ink-2);font-style:normal}
.prose img{border-radius:var(--r);margin:1.5em 0;border:1px solid var(--line)}
.prose figure{margin:1.5em 0}
.prose figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15.5px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.prose th{background:var(--bg-alt);font-weight:700;color:var(--ink);text-align:left}
.prose th,.prose td{padding:12px 15px;border-bottom:1px solid var(--line)}
.prose tbody tr:nth-child(even){background:#FAF9F6}
.prose tbody tr:last-child td{border-bottom:0}
.prose code{background:#E9EFEB;padding:2px 7px;border-radius:6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em;color:var(--brand-900)}
.prose pre{background:var(--dark);color:#DBE6E2;padding:20px 22px;border-radius:var(--r);overflow:auto;font-size:14.5px;line-height:1.75}
.prose pre code{background:transparent;color:inherit;padding:0}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.empty-box{background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:64px 32px;text-align:center}
.empty-box .bi{font-size:38px;color:var(--ink-3)}
.empty-box h2{font-size:22px;margin:16px 0 8px;color:var(--ink)}
.empty-box p{color:var(--ink-3);margin-bottom:22px}
.back-row{margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;margin-bottom:14px;color:var(--ink)}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2)}
.side-list a:last-child{border-bottom:0}
.side-list a:hover{color:var(--brand)}
.side-list a i{font-size:13px;color:var(--ink-3);transition:transform .2s}
.side-list a:hover i{transform:translateX(3px);color:var(--brand)}
.side-meta{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--ink-3)}
.side-meta div{display:flex;justify-content:space-between;gap:12px}
.side-meta b{color:var(--ink-2);font-weight:600}
.side-cta{background:var(--dark);color:#fff;border-color:transparent}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:16px}

/* ---------- 相关推荐 ---------- */
.related{background:var(--bg-alt);padding:80px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:31px;display:flex;align-items:center;gap:14px}
.sec-head h2::before{content:"";width:6px;height:28px;border-radius:4px;background:var(--brand)}
.sec-head p{color:var(--ink-3);font-size:15px;margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s,box-shadow .22s;height:100%}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-thumb{position:relative;overflow:hidden}
.card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s}
.info-card:hover .card-thumb img{transform:scale(1.04)}
.card-badge{position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--pill);background:rgba(11,26,24,.78);color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:blur(6px)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18.5px;line-height:1.45}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{font-size:14.8px;color:var(--ink-3);line-height:1.7;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:4px}
.card-foot .more{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.card-foot .more:hover i{transform:translateX(3px)}
.card-foot .more i{transition:transform .2s}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;background:var(--dark);color:#fff;padding:88px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.26}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,26,24,.94) 0%,rgba(11,26,24,.72) 55%,rgba(11,26,24,.6) 100%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-band h2{font-size:33px;color:#fff}
.cta-band p{color:rgba(255,255,255,.75);margin-top:14px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:26px;bottom:26px;z-index:1020;display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--pill);background:rgba(255,255,255,.82);border:1px solid var(--line);box-shadow:var(--shadow-2);backdrop-filter:blur(12px) saturate(150%);opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s,transform .3s,visibility .3s}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--bg-alt);color:var(--brand);font-size:19px}
.float-icon:hover{background:#E2EFEB;color:var(--brand-900)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#fff;padding:72px 0 26px;margin-top:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none}
.footer-brand .brand-text strong{color:#fff;font-size:17px}
.footer-brand .brand-text em{color:rgba(255,255,255,.62)}
.footer-about{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:360px}
.footer-col h4{font-size:15.5px;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--accent)}
.footer-contact{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.9;margin-bottom:16px}
.sub-form{display:flex;gap:8px}
.sub-form input{flex:1;min-width:0;height:46px;padding:0 16px;border-radius:var(--pill);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);color:#fff;font-size:14.5px;outline:none;transition:border-color .2s,background-color .2s}
.sub-form input::placeholder{color:rgba(255,255,255,.55)}
.sub-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.16)}
.sub-form button{height:46px;padding:0 20px;border:0;border-radius:var(--pill);background:var(--accent);color:#22180A;font-weight:700;font-size:14.5px;cursor:pointer;transition:background-color .2s}
.sub-form button:hover{background:#E0B200}
.footer-bottom{margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-top h1{font-size:33px}
  .article-grid{grid-template-columns:minmax(0,1fr) 290px;gap:34px}
  .container,.wrap,.nav-wrap{padding:0 24px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .nav-wrap{gap:14px}
  .nav-actions{margin-left:auto}
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;order:-1}
  .article-side .side-card:nth-child(1){display:none}
  .article-top h1{font-size:29px}
  .cta-inner{grid-template-columns:minmax(0,1fr)}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:auto}
  .article-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .article-side .side-cta{grid-column:1 / -1}
}
@media (max-width:767px){
  body{font-size:16px}
  body.page-inner{padding-top:68px}
  .nav-wrap{height:68px}
  .brand-mark{width:36px;height:36px;font-size:18px}
  .brand-text strong{font-size:16.5px}
  .brand-text em{font-size:10px;letter-spacing:.2em}
  .container,.wrap,.nav-wrap{padding:0 18px}
  .article-top{padding:24px 0 30px}
  .article-top h1{font-size:25px}
  .meta-row{font-size:13px}
  .article-body{padding:34px 0 60px}
  .prose{font-size:16.5px}
  .prose h2{font-size:22px}
  .prose h3{font-size:19px}
  .article-side{grid-template-columns:1fr}
  .related{padding:56px 0}
  .sec-head h2{font-size:24px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:60px 0}
  .cta-band h2{font-size:25px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .float-cta{left:0;right:0;bottom:0;border-radius:0;padding:10px 14px 12px;justify-content:space-between;background:rgba(255,255,255,.94)}
  .float-cta .btn{flex:1}
  .site-footer{padding:52px 0 88px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:last-child{grid-column:auto}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .article-top h1{font-size:22px}
  .empty-box{padding:44px 20px}
}

/* roulang page: category1 */
:root{
  --brand:#0F6E63;
  --brand-900:#0A4F47;
  --accent:#F2C200;
  --warn:#E4572E;
  --bg:#F6F4EF;
  --bg-alt:#EDF1EC;
  --dark:#0B1A18;
  --ink:#16211F;
  --ink-2:#4A5755;
  --ink-3:#7A8481;
  --line:#E3DED4;
  --surface:#FFFFFF;
  --ok:#2E9E6B;
  --err:#C8402A;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(22,33,31,.06),0 10px 26px -14px rgba(22,33,31,.22);
  --shadow-2:0 18px 40px -20px rgba(0,0,0,.5);
  --num:"Barlow Condensed","Oswald",-apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s,opacity .2s}
a:hover{color:var(--brand-900)}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--num);font-weight:700;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .25s,border-color .25s,box-shadow .25s;
}
.header-inner{
  max-width:1280px;margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand),var(--brand-900));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;
  box-shadow:0 8px 18px -10px rgba(15,110,99,.9);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;letter-spacing:.02em;color:#fff;line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:11px;letter-spacing:.28em;color:rgba(255,255,255,.62)}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-main a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:rgba(255,255,255,.86);font-weight:500;white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:3px;border-radius:3px;background:var(--accent);transition:width .22s;
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after{width:22px}
.nav-main a.is-active{color:#fff;font-weight:700}
.nav-main a.is-active::after{width:26px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search i{position:absolute;left:13px;font-size:15px;color:rgba(255,255,255,.8);pointer-events:none}
.nav-search input{
  width:186px;height:40px;border-radius:999px;
  border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.12);
  color:#fff;padding:0 16px 0 36px;font-size:14px;
  transition:border-color .2s,background .2s;
}
.nav-search input::placeholder{color:rgba(255,255,255,.7)}
.nav-search input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.2)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.12);
  color:#fff;font-size:22px;align-items:center;justify-content:center;
}
.site-header.is-stuck{
  background:#fff;border-bottom-color:var(--line);box-shadow:var(--shadow-1);
}
.site-header.is-stuck .brand-text strong{color:var(--ink)}
.site-header.is-stuck .brand-text em{color:var(--ink-3)}
.site-header.is-stuck .nav-main a{color:var(--ink-2)}
.site-header.is-stuck .nav-main a:hover{color:var(--brand)}
.site-header.is-stuck .nav-main a.is-active{color:var(--brand)}
.site-header.is-stuck .nav-search i{color:var(--ink-3)}
.site-header.is-stuck .nav-search input{
  border-color:var(--line);background:var(--bg);color:var(--ink);
}
.site-header.is-stuck .nav-search input::placeholder{color:var(--ink-3)}
.site-header.is-stuck .nav-toggle{border-color:var(--line);background:var(--bg-alt);color:var(--ink)}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-line,.btn-accent{
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .2s,color .2s,border-color .2s,transform .18s,box-shadow .2s;
  border:1.5px solid transparent;cursor:pointer;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(15,110,99,.95)}
.btn-main:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-main i{transition:transform .2s}
.btn-main:hover i{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.btn-line{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);background:rgba(15,110,99,.06)}
.btn-accent{background:var(--accent);color:#241d00}
.btn-accent:hover{background:#e0b400;color:#241d00;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:148px 0 66px;min-height:400px;
  display:flex;align-items:flex-end;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg,rgba(11,26,24,.90) 0%,rgba(11,26,24,.72) 48%,rgba(11,26,24,.55) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px;
}
.breadcrumb-line a{color:rgba(255,255,255,.8)}
.breadcrumb-line a:hover{color:var(--accent)}
.breadcrumb-line i{font-size:11px;opacity:.7}
.breadcrumb-line span{color:var(--accent)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(242,194,0,.16);border:1px solid rgba(242,194,0,.42);
  color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;line-height:1.28;font-weight:800;letter-spacing:-.01em;
  color:#fff;margin:0 0 16px;max-width:820px;
}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px;margin:0 0 28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px;border-top:1px solid rgba(255,255,255,.18);padding-top:22px}
.hero-stat strong{
  display:block;font-family:var(--num);font-size:34px;font-weight:700;
  color:var(--accent);line-height:1.1;
}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.7);letter-spacing:.04em}

/* ---------- sections ---------- */
.section{padding:92px 0}
.section.tight{padding:72px 0}
.bg-alt{background:var(--bg-alt)}
.bg-dark{background:var(--dark);color:#fff}
.sec-head{margin-bottom:44px}
.sec-head .h2-mark{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.h2-mark::before{
  content:"";width:6px;height:28px;border-radius:3px;background:var(--brand);flex:0 0 auto;
}
.sec-head h2{font-size:32px;line-height:1.3;font-weight:800;letter-spacing:-.01em;margin:0}
.sec-head p{margin:10px 0 0;color:var(--ink-2);font-size:16px;max-width:700px}
.bg-dark .sec-head h2{color:#fff}
.bg-dark .sec-head p{color:rgba(255,255,255,.72)}
.bg-dark .h2-mark::before{background:var(--accent)}

/* ---------- rank list ---------- */
.split{display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:start}
.rank-list{border-top:1px solid var(--line)}
.rank-row{
  display:grid;grid-template-columns:70px 1fr 36px;align-items:center;gap:18px;
  padding:22px 14px;border-bottom:1px solid var(--line);
  color:inherit;transition:background .22s,padding .22s;
}
.rank-row:hover{background:rgba(15,110,99,.07);color:inherit;padding-left:20px}
.rank-no{font-family:var(--num);font-size:34px;font-weight:700;color:var(--brand);line-height:1}
.rank-body h3{font-size:19px;font-weight:700;margin:0 0 6px;color:var(--ink)}
.rank-body p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.75}
.rank-arrow{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--brand);font-size:16px;transition:transform .22s,background .22s,color .22s;
}
.rank-row:hover .rank-arrow{transform:translateX(5px);background:var(--brand);color:#fff}
.side-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);background:#fff;
}
.side-figure img{width:100%;aspect-ratio:4/5;object-fit:cover}
.side-caption{padding:18px 20px}
.side-caption strong{display:block;font-size:16px;margin-bottom:6px}
.side-caption p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- offset cards ---------- */
.offset-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px}
.offset-grid > *{min-width:0}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-2px);box-shadow:0 22px 44px -26px rgba(22,33,31,.45)}
.card-tall{grid-row:span 2;display:flex;flex-direction:column;overflow:hidden}
.card-tall .thumb{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-tall .body{padding:26px 26px 28px}
.card-tall h3{font-size:22px;font-weight:800;margin:0 0 12px}
.card-tall .lead{font-size:15px;color:var(--ink-2);margin:0 0 20px;line-height:1.8}
.check-list{list-style:none;margin:0;padding:0}
.check-list li{
  display:grid;grid-template-columns:44px 1fr;gap:12px;
  padding:13px 0;border-top:1px dashed var(--line);font-size:15px;color:var(--ink-2);line-height:1.7;
}
.check-list li .idx{font-family:var(--num);font-size:20px;font-weight:700;color:var(--accent);line-height:1.4}
.card-small{padding:24px 26px}
.card-small .ic{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(15,110,99,.1);color:var(--brand);font-size:20px;margin-bottom:14px;
}
.card-small h3{font-size:19px;font-weight:700;margin:0 0 8px}
.card-small p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.78}

/* ---------- scenes ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:14px;color:var(--ink-2);
  transition:border-color .2s,color .2s,background .2s,transform .2s;cursor:default;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:rgba(15,110,99,.06);transform:translateY(-1px)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scene{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;
  box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.scene:hover{transform:translateY(-3px);box-shadow:0 22px 40px -26px rgba(22,33,31,.45);border-color:#cfd8d3}
.scene i{font-size:22px;color:var(--brand)}
.scene h3{font-size:17px;font-weight:700;margin:12px 0 8px}
.scene p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.78}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.flow-step{position:relative;padding:0 26px 0 0}
.flow-step::before{
  content:"";position:absolute;top:23px;left:56px;right:12px;height:2px;
  background:linear-gradient(90deg,rgba(15,110,99,.5),rgba(15,110,99,.12));
}
.flow-step:last-child::before{display:none}
.flow-no{
  width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;font-family:var(--num);font-size:22px;font-weight:700;
  margin-bottom:18px;position:relative;z-index:1;
}
.flow-step h3{font-size:18px;font-weight:700;margin:0 0 8px}
.flow-step p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8;max-width:230px}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  margin-bottom:14px;background:#fff;box-shadow:var(--shadow-1);
}
.accordion-button{
  font-size:16.5px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 20px;box-shadow:none!important;line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#fff}
.accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;border-radius:50%;
  background:var(--bg-alt);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;flex:0 0 auto;transform:none;
}
.accordion-button:not(.collapsed)::after{content:"−";background:rgba(15,110,99,.14)}
.accordion-body{padding:0 20px 20px;font-size:15.5px;color:var(--ink-2);line-height:1.85}

/* ---------- cross banner ---------- */
.cross{
  display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 34px;
}
.cross h3{font-size:22px;font-weight:800;margin:0 0 8px}
.cross p{margin:0;color:var(--ink-2);font-size:15px;max-width:640px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--dark);color:#fff;border-radius:var(--r-lg);
  padding:48px 46px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--accent),var(--brand));
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,110,99,.5),transparent 68%);
}
.cta-band h2{font-size:28px;font-weight:800;margin:0 0 12px;position:relative;z-index:1}
.cta-band p{margin:0 0 26px;color:rgba(255,255,255,.75);font-size:15.5px;max-width:620px;position:relative;z-index:1}
.cta-band .btn-row{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:66px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.35fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand),var(--brand-900))}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.55)}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px;margin:0}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col ul a:hover{color:var(--accent)}
.footer-contact{font-size:14px;color:rgba(255,255,255,.66);line-height:1.9;margin:0}
.sub-form{display:flex;gap:8px;margin-top:14px}
.sub-form input{
  flex:1;min-width:0;height:44px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);
  color:#fff;padding:0 16px;font-size:14px;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,194,0,.18)}
.sub-form button{
  height:44px;border:none;border-radius:999px;background:var(--brand);color:#fff;
  padding:0 20px;font-size:14px;font-weight:600;transition:background .2s;
}
.sub-form button:hover{background:var(--brand-900)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:22px 0;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- floating cta ---------- */
.floating-cta{
  position:fixed;right:24px;bottom:24px;z-index:1020;
  display:flex;align-items:center;gap:10px;
  padding:10px 12px 10px 18px;border-radius:999px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .3s,transform .3s;
}
.floating-cta.is-visible{opacity:1;pointer-events:auto;transform:none}
.floating-cta span{font-size:14px;font-weight:600;color:var(--ink)}
.floating-cta .mini{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--brand);font-size:17px;
}
.floating-cta .mini:hover{background:var(--brand);color:#fff}

/* ---------- offcanvas ---------- */
.offcanvas.mobile-nav{background:#0B1A18;color:#fff;width:300px}
.offcanvas.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12)}
.offcanvas.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.8}
.mobile-nav .m-logo{display:flex;align-items:center;gap:11px}
.mobile-nav .m-logo strong{color:#fff;font-size:16px;display:block;line-height:1.25}
.mobile-nav .m-logo em{font-style:normal;font-size:11px;letter-spacing:.26em;color:rgba(255,255,255,.55)}
.mobile-nav .m-links{list-style:none;margin:0;padding:12px 0}
.mobile-nav .m-links li{margin-bottom:4px}
.mobile-nav .m-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;color:rgba(255,255,255,.82);font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-nav .m-links a.is-active{color:var(--accent);font-weight:700}
.mobile-nav .m-cta{margin-top:22px}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px}
  .sec-head h2{font-size:28px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .nav-main,.nav-search,.header-cta-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .split{grid-template-columns:1fr}
  .side-figure img{aspect-ratio:16/10}
  .offset-grid{grid-template-columns:1fr}
  .card-tall{grid-row:auto}
  .flow{grid-template-columns:1fr 1fr;gap:32px 0}
  .flow-step::before{display:none}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cross{grid-template-columns:1fr}
}
@media (max-width:767.98px){
  body{font-size:16px;padding-bottom:74px}
  .wrap{padding:0 18px}
  .header-inner{padding:10px 18px;gap:12px}
  .brand-mark{width:38px;height:38px;font-size:18px}
  .brand-text strong{font-size:15px}
  .page-hero{padding:118px 0 48px;min-height:340px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-stats{gap:26px}
  .hero-stat strong{font-size:27px}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .sec-head h2{font-size:24px}
  .rank-row{grid-template-columns:52px 1fr 30px;gap:12px;padding:18px 8px}
  .rank-no{font-size:26px}
  .rank-body h3{font-size:17px}
  .card-tall .body{padding:20px}
  .card-small{padding:20px}
  .scene-grid{grid-template-columns:1fr;gap:16px}
  .flow{grid-template-columns:1fr;gap:28px}
  .flow-step p{max-width:none}
  .cta-band{padding:34px 24px}
  .cta-band h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .floating-cta{
    left:0;right:0;bottom:0;border-radius:0;width:100%;
    padding:9px 16px;justify-content:space-between;
    border-left:none;border-right:none;border-bottom:none;
  }
  .floating-cta span{font-size:13.5px}
  .floating-cta .btn-main{height:40px;padding:0 18px;font-size:13.5px}
}
@media (max-width:519.98px){
  .hero-btns .btn-main,.hero-btns .btn-ghost{width:100%;justify-content:center}
  .cross{padding:24px 20px}
}

/* roulang page: category2 */
:root{
  --brand:#0F6E63;
  --brand-900:#0A4F47;
  --brand-050:#E6F1EF;
  --accent:#F2C200;
  --warn:#E4572E;
  --bg:#F6F4EF;
  --bg-alt:#EDF1EC;
  --dark:#0B1A18;
  --dark-2:#102A26;
  --surface:#FFFFFF;
  --line:#E3DED4;
  --ink:#16211F;
  --ink-2:#4A5755;
  --ink-3:#7A8481;
  --ok:#2E9E6B;
  --err:#C8402A;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(22,33,31,.06),0 10px 26px -14px rgba(22,33,31,.22);
  --shadow-2:0 18px 40px -20px rgba(0,0,0,.5);
  --wrap:1200px;
  --font-sans:"PingFang SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","PingFang SC",var(--font-sans);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.02em}

/* ============ Header / Nav ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  font-size:20px;
  box-shadow:0 6px 18px -8px rgba(15,110,99,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;letter-spacing:.18em;color:rgba(255,255,255,.72)}

.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto}
.nav-main a{
  position:relative;
  padding:8px 14px;
  font-size:15.5px;
  color:rgba(255,255,255,.86);
  border-radius:999px;
  white-space:nowrap;
}
.nav-main a:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-main a.is-active{color:#fff;font-weight:600}
.nav-main a.is-active::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:2px;
  height:3px;border-radius:3px;background:var(--accent);
}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.32);
  background:rgba(255,255,255,.08);
  color:#fff;font-size:17px;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.2)}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-cta:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(10,79,71,.9);color:#fff}
.menu-toggle{
  width:42px;height:42px;border-radius:12px;
  display:none;place-items:center;
  border:1px solid rgba(255,255,255,.32);
  background:rgba(255,255,255,.08);
  color:#fff;font-size:20px;cursor:pointer;
}

.site-header.is-stuck{
  background:#FFFFFF;
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.site-header.is-stuck .brand-text strong{color:var(--ink)}
.site-header.is-stuck .brand-text em{color:var(--ink-3)}
.site-header.is-stuck .nav-main a{color:var(--ink-2)}
.site-header.is-stuck .nav-main a:hover{color:var(--brand);background:var(--brand-050)}
.site-header.is-stuck .nav-main a.is-active{color:var(--brand)}
.site-header.is-stuck .icon-btn{border-color:var(--line);background:#fff;color:var(--ink)}
.site-header.is-stuck .icon-btn:hover{background:var(--brand-050);color:var(--brand)}
.site-header.is-stuck .menu-toggle{border-color:var(--line);background:#fff;color:var(--ink)}

/* Offcanvas */
.offcanvas.dark-drawer{background:var(--dark);color:#fff;width:308px}
.offcanvas.dark-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:20px 22px}
.offcanvas.dark-drawer .offcanvas-title{font-size:16px;letter-spacing:.04em;color:rgba(255,255,255,.8)}
.offcanvas.dark-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.drawer-nav{display:flex;flex-direction:column;padding:14px 12px}
.drawer-nav a{
  padding:14px 16px;border-radius:12px;
  color:rgba(255,255,255,.86);font-size:16px;
}
.drawer-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.drawer-nav a.is-active{background:rgba(15,110,99,.28);color:#fff;font-weight:600}
.drawer-foot{padding:18px 24px 30px;border-top:1px solid rgba(255,255,255,.12);margin-top:auto}
.drawer-foot .btn-cta{width:100%;justify-content:center}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:400px;
  display:flex;
  align-items:flex-end;
  padding:150px 0 58px;
  overflow:hidden;
  background:var(--dark);
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-position:center;
  background-size:cover;
  transform:scale(1.02);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,26,24,.90) 0%,rgba(11,26,24,.72) 48%,rgba(11,26,24,.48) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:16px;
}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:999px;
  background:rgba(242,194,0,.14);
  border:1px solid rgba(242,194,0,.4);
  color:var(--accent);
  font-size:12.5px;letter-spacing:.14em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;
  color:#fff;
  max-width:840px;
  margin-bottom:18px;
}
.page-hero h1 .hl{color:var(--accent)}
.page-hero .lede{
  max-width:660px;
  font-size:17px;
  color:rgba(255,255,255,.80);
  margin-bottom:26px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.20);
  color:rgba(255,255,255,.88);
  font-size:13.5px;
}
.hero-meta i{color:var(--accent)}

/* ============ Section 基础 ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.22em;
  color:var(--brand);
  margin-bottom:12px;
}
.section-dark .section-head .eyebrow{color:var(--accent)}
.section-head h2{
  font-size:32px;
  padding-left:16px;
  border-left:4px solid var(--brand);
  margin-bottom:14px;
}
.section-dark .section-head h2{border-left-color:var(--accent)}
.section-head p{color:var(--ink-2);margin-bottom:0;max-width:720px}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* ============ Chips ============ */
.chips-row{
  display:flex;flex-wrap:wrap;gap:10px;
  padding-bottom:36px;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:14.5px;
  cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-050)}
.chip.is-on{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(15,110,99,.95);
}
.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ 大卡网格 ============ */
.big-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.big-card{
  position:relative;
  height:340px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--dark);
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.big-card img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.big-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,26,24,.94) 8%,rgba(11,26,24,.62) 44%,rgba(11,26,24,.16) 100%);
}
.big-card-body{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:26px 26px 24px;
  color:#fff;
}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  background:rgba(242,194,0,.16);
  border:1px solid rgba(242,194,0,.45);
  color:var(--accent);
  margin-bottom:12px;
}
.badge-tag.tag-hot{background:rgba(228,87,46,.18);border-color:rgba(228,87,46,.5);color:#FFB59B}
.big-card h3{font-size:22px;margin-bottom:8px;color:#fff}
.big-card p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.80);margin-bottom:0}
.big-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,110,99,.55)}
.big-card:hover img{transform:scale(1.04)}
.big-card.is-hidden{display:none}

/* ============ 指标条 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  overflow:hidden;
  margin-bottom:52px;
}
.metric{
  background:var(--dark-2);
  padding:28px 24px;
}
.metric b{
  display:block;
  font-family:var(--font-num);
  font-size:42px;
  line-height:1.05;
  color:var(--accent);
  letter-spacing:.02em;
}
.metric b small{font-size:19px;margin-left:2px;color:var(--accent)}
.metric span{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-top:8px}

/* ============ 说明卡（1 大 2 小） ============ */
.note-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  grid-template-rows:auto auto;
  gap:24px;
}
.note-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.note-card:hover{transform:translateY(-2px);box-shadow:0 20px 38px -22px rgba(22,33,31,.38)}
.note-card.large{
  grid-row:span 2;
  background:var(--dark);
  color:#fff;
  border-color:rgba(255,255,255,.10);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:34px 30px;
}
.note-card.large h3{color:#fff;font-size:25px;margin:16px 0 12px}
.note-card.large p{color:rgba(255,255,255,.76);margin-bottom:0}
.note-num{
  font-family:var(--font-num);
  font-size:15px;
  letter-spacing:.2em;
  color:var(--accent);
}
.note-card h3{font-size:19px;margin-bottom:10px}
.note-card p{font-size:15.5px;color:var(--ink-2);margin-bottom:0}

/* ============ 流程 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:step;
}
.flow-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-1);
}
.flow-item::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-num);
  font-size:28px;
  font-weight:700;
  color:var(--accent);
  display:block;
  margin-bottom:10px;
  letter-spacing:.04em;
}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:14.8px;color:var(--ink-2);margin-bottom:0}
.flow-item::after{
  content:"";
  position:absolute;top:38px;right:-14px;
  width:8px;height:8px;
  border-top:2px solid var(--line);
  border-right:2px solid var(--line);
  transform:rotate(45deg);
}
.flow-item:last-child::after{display:none}

/* ============ 列表条 ============ */
.rank-list{
  border-top:1px solid var(--line);
}
.rank-row{
  display:flex;align-items:center;gap:24px;
  padding:24px 18px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.rank-row:hover{background:var(--brand-050)}
.rank-idx{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--brand);
  min-width:56px;
}
.rank-body{flex:1 1 auto}
.rank-body h3{font-size:19px;margin-bottom:6px}
.rank-body p{font-size:15px;color:var(--ink-2);margin-bottom:0}
.rank-arrow{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:999px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--ink-3);
  transition:all .22s ease;
}
.rank-row:hover .rank-arrow{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateX(4px);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--surface);
  margin-bottom:14px;
  overflow:hidden;
}
.accordion-item.faq-item + .accordion-item.faq-item{margin-top:0;border-top:1px solid var(--line)}
.faq-item .accordion-button{
  background:var(--surface);
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 58px 20px 22px;
  box-shadow:none;
  border:0;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand)}
.faq-item .accordion-button::after{
  content:"+";
  background-image:none;
  font-family:var(--font-num);
  font-size:26px;
  line-height:1;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:999px;
  background:var(--brand-050);
  color:var(--brand);
  position:absolute;
  right:20px;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item .accordion-button:not(.collapsed)::after{
  content:"−";
  background:var(--brand);
  color:#fff;
  transform:rotate(180deg);
}
.faq-item .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--accent)}
.faq-item .accordion-body{
  padding:0 22px 24px;
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
  max-width:760px;
}

/* ============ 交叉横幅 ============ */
.cross-banner{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:5px solid var(--brand);
  border-radius:var(--r-lg);
  padding:28px 30px;
  box-shadow:var(--shadow-1);
}
.cross-banner .cb-text{flex:1 1 380px}
.cross-banner h3{font-size:21px;margin-bottom:8px}
.cross-banner p{font-size:15.5px;color:var(--ink-2);margin-bottom:0}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  border:1.5px solid var(--ink);
  color:var(--ink);
  font-size:15.5px;font-weight:600;
  background:transparent;
  transition:all .22s ease;
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-050)}
.btn-outline i{transition:transform .22s ease}
.btn-outline:hover i{transform:translateX(4px)}

/* ============ CTA 深色条 ============ */
.cta-band{
  position:relative;
  background:var(--dark);
  color:#fff;
  border-radius:var(--r-lg);
  padding:52px 48px;
  overflow:hidden;
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:48px;right:48px;top:0;
  height:1px;
  background:linear-gradient(90deg,var(--accent),rgba(242,194,0,0));
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(15,110,99,.5);
  box-shadow:0 0 0 40px rgba(15,110,99,.10);
  pointer-events:none;
}
.cta-band .cb-main{position:relative;z-index:2;flex:1 1 420px}
.cta-band h2{font-size:30px;margin-bottom:12px;color:#fff}
.cta-band p{color:rgba(255,255,255,.76);margin-bottom:0;max-width:600px}
.cta-band .cb-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.btn-accent{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 28px;
  border-radius:999px;
  background:var(--accent);
  color:#1B1A16;
  font-size:16px;font-weight:700;
  border:1px solid transparent;
  transition:all .22s ease;
}
.btn-accent:hover{background:#FFD733;transform:translateY(-1px);color:#1B1A16}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 26px;
  border-radius:999px;
  border:1.5px solid rgba(255,255,255,.5);
  background:transparent;
  color:#fff;
  font-size:16px;font-weight:600;
  transition:all .22s ease;
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.10);color:#fff}

/* ============ Footer ============ */
.site-footer{
  background:var(--brand-900);
  color:#fff;
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.62)}
.footer-about{font-size:14.8px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;margin-bottom:0}
.footer-col h4{
  font-size:15px;
  letter-spacing:.06em;
  margin-bottom:18px;
  color:#fff;
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.8px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--accent)}
.footer-contact{font-size:14.8px;color:rgba(255,255,255,.72);line-height:1.85;margin-bottom:16px}
.sub-form{display:flex;gap:8px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 170px;
  height:46px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:14.5px;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,194,0,.22)}
.sub-form button{
  height:46px;padding:0 24px;
  border-radius:999px;border:0;
  background:var(--accent);
  color:#1B1A16;
  font-size:15px;font-weight:700;
  cursor:pointer;
  transition:background-color .2s ease,transform .2s ease;
}
.sub-form button:hover{background:#FFD733;transform:translateY(-1px)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .page-hero h1{font-size:38px}
  .section{padding:80px 0}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .nav-main{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-cta{display:none}
  .page-hero{min-height:360px;padding:132px 0 48px}
  .page-hero h1{font-size:32px}
  .section-head h2{font-size:26px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .note-grid{grid-template-columns:1fr}
  .note-card.large{grid-row:auto}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-item:nth-child(2)::after{display:none}
  .cta-band{padding:42px 32px}
  .cta-band h2{font-size:25px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding:64px 0}
  .page-hero{min-height:340px;padding:120px 0 42px}
  .page-hero h1{font-size:27px}
  .page-hero .lede{font-size:15.5px}
  .big-grid{grid-template-columns:1fr;gap:18px}
  .big-card{height:300px}
  .big-card-body{padding:22px 20px 20px}
  .big-card h3{font-size:20px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:36px}
  .metric{padding:22px 18px}
  .metric b{font-size:34px}
  .flow{grid-template-columns:1fr}
  .flow-item::after{display:none}
  .rank-row{gap:16px;padding:20px 12px}
  .rank-idx{font-size:24px;min-width:44px}
  .cross-banner{padding:24px 20px}
  .cta-band{padding:36px 24px;border-radius:var(--r)}
  .cta-band::before{left:24px;right:24px}
  .cta-band .cb-actions{width:100%}
  .btn-accent,.btn-ghost{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-col:last-child{grid-column:auto}
  .faq-item .accordion-button{font-size:16px;padding:18px 54px 18px 18px}
}
@media (max-width:520px){
  .page-hero h1{font-size:24px}
  .hero-meta span{font-size:12.5px;padding:6px 12px}
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:11px;letter-spacing:.14em}
  .note-card{padding:24px 20px}
  .note-card.large{padding:28px 22px}
  .big-card{height:280px}
}