/* roulang page: index */
:root{
  --brand:#0E7C6B;
  --brand-deep:#0A5A4E;
  --brand-soft:#17A38C;
  --accent:#F2A03B;
  --coral:#FF6B4A;
  --bg:#F7FAF9;
  --surface:#FFFFFF;
  --surface-2:#EEF5F2;
  --ink:#12211E;
  --text:#3C4C49;
  --muted:#7A8B87;
  --line:#E2EAE7;
  --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
  --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
  --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:-.3px}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:rgba(14,124,107,.18)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;line-height:1;white-space:nowrap;
  padding:14px 28px;
  transition:background-position .35s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),transform .2s var(--ease);
}
.btn-primary{background-image:var(--grad);background-size:220% 100%;background-position:0% 50%;color:#fff}
.btn-primary:hover{background-position:100% 50%;box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--brand);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep)}
.btn-ghost:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--brand-deep)}
.btn-white:hover{background:#F1FBF8;box-shadow:0 18px 34px -20px rgba(0,0,0,.55)}
.btn-white:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.text-link span{transition:transform .2s var(--ease)}
.text-link:hover{color:var(--brand-deep)}
.text-link:hover span{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;
  white-space:nowrap;line-height:1.6;
}
.pill-brand{background:rgba(14,124,107,.08);color:var(--brand);border:1px solid rgba(14,124,107,.2)}
.pill-accent{background:rgba(242,160,59,.14);color:#8A5410;border:1px solid rgba(242,160,59,.32)}
.pill-live{background:rgba(14,124,107,.09);color:var(--brand);border:1px solid rgba(14,124,107,.22)}
.pill-live::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--brand-soft);box-shadow:0 0 0 3px rgba(23,163,140,.18)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background-image:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;letter-spacing:-.5px;
  box-shadow:0 8px 18px -10px rgba(10,90,78,.7);flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.3px}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--surface-2)}
.nav-links a.active{background:#E7F4F0;color:var(--brand);font-weight:600}
.nav-cta{flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
}
/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:95;background:rgba(11,31,28,.45);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(340px,88vw);
  background:#fff;padding:22px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s var(--ease);overflow-y:auto;
  box-shadow:-20px 0 50px -30px rgba(12,40,34,.5);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--muted);font-size:18px;
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{
  padding:14px 16px;border-radius:14px;font-size:16px;font-weight:600;color:var(--ink);
}
.drawer-links a:hover,.drawer-links a.active{background:#E7F4F0;color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:22px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{padding:28px 0 0}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  padding:56px 48px;
  background-image:
    linear-gradient(112deg,rgba(9,46,40,.94) 0%,rgba(10,90,78,.88) 44%,rgba(23,163,140,.82) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover,cover;
  background-position:center center;
  box-shadow:var(--shadow-2);
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px;align-items:center}}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);
  color:#D6F5EE;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero-title{font-size:30px;line-height:1.25;color:#fff;letter-spacing:-.5px;margin-top:20px;font-weight:700}
@media (min-width:1024px){.hero-title{font-size:46px}}
.hero-sub{margin-top:18px;max-width:560px;color:rgba(255,255,255,.84);font-size:16px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.48);color:#fff}
.hero .btn-ghost:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);
  color:#EAF9F5;font-size:13.5px;white-space:nowrap;
}
.hero-stats strong{font-size:18px;font-weight:600;color:#7FD8C4;font-variant-numeric:tabular-nums}
.hero-panel{background:#fff;border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-2)}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.panel-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.panel-cover{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2)}
.panel-cover img{width:100%;height:100%;object-fit:cover}
.panel-list{margin-top:16px;display:grid;gap:2px}
.panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line);color:var(--muted);
}
.panel-list li:last-child{border-bottom:0}
.panel-list b{color:var(--brand-deep);font-weight:600;font-size:14px}

/* ---------- 板块 ---------- */
.section{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.1em;margin-bottom:12px;
}
.section-title{font-size:32px;position:relative;padding-left:18px}
.section-title::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:22px;border-radius:999px;background-image:var(--grad);
}
.section-desc{max-width:460px;font-size:14.5px;color:var(--muted);line-height:1.8}
@media (max-width:639px){
  .section-title{font-size:23px}
  .section-head{margin-bottom:26px}
}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);gap:22px}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(3,1fr);gap:24px}}
.step-card{
  position:relative;display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
@media (min-width:1024px){
  .step-card::after{
    content:'';position:absolute;right:-25px;top:50%;width:25px;
    border-top:1px dashed var(--line);
  }
  .step-card:last-child::after{display:none}
}
.step-num{
  font-size:40px;font-weight:700;line-height:1;flex:none;
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;
  color:transparent;font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:19px;color:var(--brand-deep);margin-bottom:8px}
.step-body p{font-size:14.5px;color:var(--muted);line-height:1.8}
@media (max-width:639px){
  .steps{gap:0}
  .step-card{border-radius:0;border-left:2px solid var(--line);border-top:0;border-right:0;border-bottom:0;box-shadow:none;padding:18px 0 18px 20px;background:transparent}
  .step-card:hover{transform:none;box-shadow:none;background:transparent}
  .step-card:last-child{padding-bottom:0}
  .step-num{font-size:30px}
}

/* ---------- 案例证明 ---------- */
.proof-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.proof-grid{grid-template-columns:7fr 5fr;gap:24px}}
.proof-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.proof-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.proof-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.proof-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.proof-main:hover .proof-media img{transform:scale(1.03)}
.proof-body{padding:26px 26px 28px}
.proof-body .pill{margin-right:8px}
.proof-quote{margin-top:16px;font-size:17px;color:var(--ink);line-height:1.75;font-weight:500}
.proof-src{margin-top:14px;font-size:13px;color:var(--muted)}
.proof-side{display:grid;gap:24px;align-content:start}
.proof-mini{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.proof-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.proof-mini h3{font-size:18px;color:var(--brand-deep);margin:14px 0 8px}
.proof-mini p{font-size:14.5px;color:var(--muted);line-height:1.8}
.proof-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.badge-num{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(14,124,107,.08);border:1px solid rgba(14,124,107,.2);
  color:var(--brand);font-size:13.5px;font-weight:600;white-space:nowrap;
}
.badge-num b{font-size:16px;font-variant-numeric:tabular-nums}
.badge-num.warm{background:rgba(242,160,59,.14);border-color:rgba(242,160,59,.34);color:#8A5410}
.badge-num.warm b{color:#B4690F}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{
  font-size:17px;line-height:1.55;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.post-title:hover{color:var(--brand)}
.post-summary{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}
.post-meta .meta-time{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.post-meta svg{flex:none;color:var(--brand-soft)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-state svg{margin:0 auto 16px;color:var(--brand-soft);opacity:.85}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .faq-layout{grid-template-columns:340px 1fr;gap:56px;align-items:start}
  .faq-aside{position:sticky;top:100px}
}
.faq-aside h2{font-size:28px;line-height:1.35;margin-bottom:14px}
.faq-aside p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:22px}
.faq-item{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;margin-bottom:12px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(14,124,107,.32)}
.faq-item.is-open{box-shadow:var(--shadow-1)}
.faq-item::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background-image:var(--grad);opacity:0;transition:opacity .25s var(--ease);
}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-arrow{
  flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(14,124,107,.08);color:var(--brand);font-size:12px;
  transition:transform .25s var(--ease),background-color .25s var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);background:rgba(14,124,107,.16)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .32s var(--ease),opacity .25s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px;opacity:1}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--text);line-height:1.85}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:48px;background-image:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-card::after{
  content:'';position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.26);pointer-events:none;
}
.cta-card::before{
  content:'';position:absolute;right:-30px;bottom:-130px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:640px}
.cta-text h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-text p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.8}
.cta-card .btn{position:relative;z-index:1}
@media (max-width:767px){
  .cta-card{padding:32px 24px;border-radius:24px}
  .cta-text h2{font-size:22px}
  .cta-card .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1F1C;color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:48px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-mark{
  width:38px;height:38px;border-radius:12px;background-image:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;flex:none;
}
.footer-brand-name{font-size:16px;font-weight:700;color:#fff}
.footer-intro{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:#7FD8C4;transform:translateX(2px)}
.footer-links span{font-size:14px;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  background-image:var(--grad);color:#fff;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-2px)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .post-card:hover,.step-card:hover,.proof-main:hover,.proof-mini:hover{transform:none}
  .post-card:hover .post-thumb img,.proof-main:hover .proof-media img{transform:none}
}

/* roulang page: article */
:root{
  --brand:#0E7C6B;
  --brand-deep:#0A5A4E;
  --brand-soft:#17A38C;
  --accent:#F2A03B;
  --coral:#FF6B4A;
  --bg:#F7FAF9;
  --surface:#FFFFFF;
  --surface-2:#EEF5F2;
  --ink:#12211E;
  --text:#3C4C49;
  --muted:#7A8B87;
  --line:#E2EAE7;
  --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
  --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
  --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
  --radius-lg:28px;
  --radius:20px;
  --radius-sm:16px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);}
p{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:0 24px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow-1);}
.header-inner{height:68px;display:flex;align-items:center;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:0 8px 18px -10px rgba(10,90,78,.9);
}
.brand-name{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:2px;margin-left:auto;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
}
.nav-links a:hover{background:var(--surface-2);color:var(--brand-deep);}
.nav-links a.active{background:rgba(14,124,107,.10);color:var(--brand-deep);font-weight:600;}
.nav-cta{
  display:none;align-items:center;padding:10px 20px;border-radius:999px;
  background:var(--grad);background-size:200% 100%;color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 10px 22px -14px rgba(10,90,78,.9);margin-left:12px;white-space:nowrap;
}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.nav-cta:hover{background-position:100% 0;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;
  width:44px;height:44px;padding:0 11px;border:1px solid var(--line);border-radius:13px;background:#fff;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:#fff;padding:18px 22px 28px;
  display:flex;flex-direction:column;transform:translateX(102%);
  transition:transform .32s var(--ease);
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:19px;color:var(--ink);background:#fff;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:22px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 16px;border-radius:14px;font-size:17px;font-weight:600;color:var(--ink);background:var(--bg);
}
.drawer-nav a:hover{background:var(--surface-2);color:var(--brand-deep);}
.drawer-nav a::after{content:"→";font-size:15px;color:var(--muted);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot .btn{width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s var(--ease);
}
.btn-primary{background:var(--grad);background-size:200% 100%;background-position:0 0;color:#fff;box-shadow:0 12px 26px -16px rgba(10,90,78,.95);}
.btn-primary:hover{background-position:100% 0;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-deep);}
.btn-ghost:hover{border-color:var(--brand);background:#fff;}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- article layout ---------- */
.article-page{padding:26px 0 76px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:#c3d2ce;}
.breadcrumb .current{color:var(--brand-deep);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;max-width:800px;margin:0 auto;}
@media (min-width:1280px){.article-layout{grid-template-columns:minmax(0,780px) 300px;max-width:1140px;gap:48px;}}
.article-main{min-width:0;}
.article-head{margin-bottom:8px;}
.article-title{
  font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.5px;color:var(--ink);
  margin:14px 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
@media (min-width:768px){.article-title{font-size:40px;line-height:1.25;}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#c9d8d4;}
.cover-wrap{
  margin:26px 0 34px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);aspect-ratio:16/9;background:var(--surface-2);
}
.cover-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.cover-wrap:hover img{transform:scale(1.02);}
.cover-caption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center;}

/* ---------- article content ---------- */
.article-content{font-size:17px;line-height:1.9;color:var(--text);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.15em;}
.article-content strong{color:var(--ink);font-weight:600;}
.article-content a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand-soft);}
.article-content h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;color:var(--ink);
  letter-spacing:-.3px;margin:2.2em 0 .9em;padding-left:18px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.28em;width:6px;height:22px;border-radius:999px;background:var(--grad);
}
.article-content h3{font-size:19px;font-weight:600;color:var(--brand-deep);margin:1.8em 0 .65em;}
.article-content ul{list-style:disc;padding-left:1.35em;margin:0 0 1.15em;}
.article-content ol{list-style:decimal;padding-left:1.5em;margin:0 0 1.15em;}
.article-content li{margin:.42em 0;padding-left:.15em;}
.article-content li::marker{color:var(--brand);font-weight:600;}
.article-content blockquote{
  margin:1.5em 0;padding:18px 22px;background:var(--surface-2);
  border-left:4px solid var(--brand);border-radius:18px;color:var(--brand-deep);font-size:16.5px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--radius-sm);margin:1.5em auto;}
.article-content table{
  display:block;overflow-x:auto;width:100%;margin:1.5em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius);border-collapse:collapse;background:#fff;
}
.article-content th{
  background:var(--surface-2);color:var(--ink);font-weight:600;text-align:left;
  padding:12px 16px;white-space:nowrap;
}
.article-content td{padding:12px 16px;border-top:1px solid var(--line);white-space:nowrap;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;padding:64px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);
}
.empty-state svg{margin:0 auto 20px;}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--muted);max-width:40ch;margin:0 auto 24px;}

/* ---------- tags & foot ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);align-items:center;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  background:#fff;border:1px solid var(--line);color:var(--text);
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);background:var(--surface-2);}
.article-foot{
  margin-top:26px;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-deep);}
.text-link::after{content:"→";transition:transform .2s var(--ease);}
.text-link:hover::after{transform:translateX(3px);}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;align-self:start;}
@media (min-width:1280px){.article-side{position:sticky;top:92px;}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);transition:box-shadow .25s var(--ease);}
.side-card:hover{box-shadow:var(--shadow-2);}
.side-title{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.side-title::before{content:"";width:5px;height:17px;border-radius:3px;background:var(--grad);}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14.5px;color:var(--text);
}
.side-links a::after{content:"→";font-size:13px;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);}
.side-links a:hover{background:var(--surface-2);color:var(--brand-deep);}
.side-links a:hover::after{transform:translateX(3px);color:var(--brand);}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);}
.side-cta{background:var(--grad);border-radius:var(--radius);padding:24px;color:#fff;box-shadow:var(--shadow-2);}
.side-cta h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:8px;}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.88);margin-bottom:16px;}
.side-cta .btn{width:100%;background:#fff;color:var(--brand-deep);font-size:14.5px;padding:12px 20px;}
.side-cta .btn:hover{transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(0,0,0,.45);}
.side-badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  background:rgba(14,124,107,.08);border:1px solid rgba(14,124,107,.2);color:var(--brand-deep);
  font-size:12.5px;font-weight:600;font-variant-numeric:tabular-nums;
}

/* ---------- footer ---------- */
.site-footer{background:#0B1F1C;color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:15px;flex-shrink:0;
}
.footer-brand-name{color:#fff;font-size:16px;font-weight:700;letter-spacing:-.2px;}
.footer-intro{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:38ch;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-links a,.footer-links span{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#7FD8C4;transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;font-size:18px;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);}

@media (max-width:1023px){
  .article-page{padding:20px 0 60px;}
  .cover-wrap{margin:22px 0 28px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category1 */
:root{
    --brand:#0E7C6B;
    --brand-deep:#0A5A4E;
    --brand-soft:#17A38C;
    --accent:#F2A03B;
    --coral:#FF6B4A;
    --bg:#F7FAF9;
    --surface:#FFFFFF;
    --surface-2:#EEF5F2;
    --ink:#12211E;
    --text:#3C4C49;
    --muted:#7A8B87;
    --line:#E2EAE7;
    --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
    --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
    --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
    --r-hero:28px;
    --r-card:20px;
    --r-small:16px;
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  p{margin:0;}
  h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;}
  table{border-collapse:collapse;width:100%;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}

  .num{font-variant-numeric:tabular-nums;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
  }
  @media (min-width:1440px){
    .container{max-width:1320px;}
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s var(--ease);
  }
  .site-header.scrolled{box-shadow:var(--shadow-1);}
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    height:68px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:36px;height:36px;border-radius:12px;
    background:var(--grad);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-weight:700;font-size:17px;
    box-shadow:0 8px 18px -10px rgba(10,90,78,.75);
  }
  .brand-text{
    font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap;
  }
  .nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
  .nav-links a{
    display:inline-block;
    padding:9px 14px;
    border-radius:999px;
    font-size:14.5px;
    color:var(--text);
    white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .nav-links a:hover{background:var(--surface-2);color:var(--brand-deep);}
  .nav-links a.active{
    background:rgba(14,124,107,.10);
    color:var(--brand-deep);
    font-weight:600;
  }
  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-toggle{
    display:none;
    width:42px;height:42px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#fff;
    align-items:center;justify-content:center;
    color:var(--brand-deep);
    transition:border-color .2s var(--ease),background .2s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--brand);background:var(--surface-2);}

  /* 移动端抽屉 */
  .mobile-drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:#fff;
    transform:translateX(102%);
    transition:transform .32s var(--ease);
    display:flex;
    flex-direction:column;
    padding:20px 24px 28px;
    overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateX(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
  .drawer-close{
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--brand-deep);
  }
  .drawer-close:hover{border-color:var(--brand);background:var(--surface-2);}
  .drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:auto;}
  .drawer-links a{
    display:block;
    padding:16px 16px;
    border-radius:16px;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .drawer-links a:hover,.drawer-links a.active{background:var(--surface-2);color:var(--brand-deep);}
  .drawer-cta{margin-top:28px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:999px;
    padding:14px 28px;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    transition:background-position .25s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .25s var(--ease);
  }
  .btn-primary{
    background:var(--grad);
    background-size:200% 100%;
    background-position:0% 0;
    color:#fff;
    box-shadow:0 12px 26px -14px rgba(10,90,78,.72);
  }
  .btn-primary:hover{background-position:100% 0;transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{
    background:#fff;
    border:1px solid var(--line);
    color:var(--brand-deep);
  }
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
  .btn-sm{padding:10px 20px;font-size:14px;}
  .btn-text{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-weight:600;
    color:var(--brand-deep);
    padding:6px 0;
    transition:color .2s var(--ease);
  }
  .btn-text .arrow{transition:transform .22s var(--ease);}
  .btn-text:hover{color:var(--brand);}
  .btn-text:hover .arrow{transform:translateX(3px);}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:7px 14px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    white-space:nowrap;
    background:rgba(14,124,107,.08);
    color:var(--brand-deep);
    border:1px solid rgba(14,124,107,.20);
  }
  .badge-accent{
    background:rgba(242,160,59,.14);
    color:#8E5610;
    border-color:rgba(242,160,59,.38);
  }
  .badge-line{
    background:#fff;
    color:var(--muted);
    border-color:var(--line);
  }
  .badge-group{display:flex;flex-wrap:wrap;gap:10px;}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13.5px;
    color:var(--muted);
    padding:22px 0 0;
  }
  .breadcrumb a{transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#C3D2CE;}
  .breadcrumb .current{color:var(--muted);}

  /* ---------- Hero 横幅 ---------- */
  .hero-wrap{padding:22px 0 0;}
  .hero-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-hero);
    padding:52px 48px;
    color:#fff;
    background-color:#0A5A4E;
    background-image:linear-gradient(108deg,rgba(10,90,78,.94) 0%,rgba(14,124,107,.88) 52%,rgba(47,183,155,.76) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
    box-shadow:var(--shadow-2);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.32fr .92fr;
    gap:44px;
    align-items:center;
    position:relative;
    z-index:1;
  }
  .hero-band h1{
    color:#fff;
    font-size:46px;
    font-weight:700;
    letter-spacing:-.5px;
    line-height:1.25;
    margin-bottom:18px;
  }
  .hero-sub{
    font-size:16.5px;
    line-height:1.8;
    color:rgba(255,255,255,.88);
    max-width:600px;
    margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
  .hero-band .btn-ghost{
    background:rgba(255,255,255,.12);
    border-color:rgba(255,255,255,.45);
    color:#fff;
  }
  .hero-band .btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff;color:#fff;}
  .hero-band .badge{
    background:rgba(255,255,255,.14);
    color:#fff;
    border-color:rgba(255,255,255,.30);
  }
  .hero-side{
    background:#fff;
    border-radius:var(--r-card);
    padding:20px;
    box-shadow:var(--shadow-2);
    color:var(--text);
  }
  .hero-side .badge{margin-bottom:14px;}
  .side-media{
    aspect-ratio:4/3;
    border-radius:var(--r-small);
    overflow:hidden;
    background:var(--surface-2);
    margin-bottom:16px;
  }
  .side-media img{width:100%;height:100%;object-fit:cover;}
  .side-list{display:flex;flex-direction:column;gap:10px;}
  .side-list li{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    font-size:14px;
    padding-bottom:10px;
    border-bottom:1px dashed var(--line);
  }
  .side-list li:last-child{border-bottom:0;padding-bottom:0;}
  .side-list .k{color:var(--ink);font-weight:600;}
  .side-list .v{color:var(--muted);font-size:13px;}

  /* ---------- 板块通用 ---------- */
  .section{padding:96px 0;}
  .section-alt{background:var(--surface-2);}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:40px;
  }
  .sec-title{
    position:relative;
    padding-left:18px;
    font-size:32px;
    font-weight:700;
    letter-spacing:-.3px;
    line-height:1.35;
    color:var(--ink);
  }
  .sec-title::before{
    content:"";
    position:absolute;
    left:0;
    top:.26em;
    width:6px;
    height:22px;
    border-radius:999px;
    background:var(--grad);
  }
  .sec-desc{
    margin-top:14px;
    font-size:15.5px;
    color:var(--muted);
    max-width:680px;
  }
  .section-head .btn-text{flex:0 0 auto;padding-bottom:6px;}

  /* ---------- 通道错落区 ---------- */
  .channel-grid{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    gap:24px;
    align-items:start;
  }
  .channel-main{grid-column:span 8;}
  .channel-aside{grid-column:span 4;display:flex;flex-direction:column;gap:24px;}

  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  }
  .card-hover:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-2);
    border-color:#D2E2DD;
  }
  .media{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-small);
    background:var(--surface-2);
  }
  .media-16x9{aspect-ratio:16/9;}
  .media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .card-hover:hover .media img{transform:scale(1.03);}
  .card-body{padding:24px;}
  .card-title{
    font-size:22px;
    font-weight:600;
    color:var(--brand-deep);
    line-height:1.45;
    margin:14px 0 10px;
  }
  .card-text{font-size:15.5px;color:var(--text);}
  .card-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:18px;
    padding-top:18px;
    border-top:1px solid var(--line);
    font-size:13.5px;
    color:var(--muted);
  }
  .card-meta span{display:inline-flex;align-items:center;gap:6px;}

  .mini-card{
    display:flex;
    gap:14px;
    padding:16px;
    align-items:flex-start;
  }
  .mini-thumb{
    flex:0 0 96px;
    width:96px;
    height:74px;
    border-radius:14px;
    overflow:hidden;
    background:var(--surface-2);
  }
  .mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .mini-card:hover .mini-thumb img{transform:scale(1.05);}
  .mini-title{font-size:16px;font-weight:600;color:var(--ink);margin:8px 0 6px;line-height:1.45;}
  .mini-text{font-size:13.5px;color:var(--muted);line-height:1.65;}

  /* ---------- 参数表 ---------- */
  .table-note{
    font-size:13px;
    color:var(--muted);
    margin-bottom:14px;
  }
  .table-wrap{
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    background:#fff;
    box-shadow:var(--shadow-1);
  }
  table.spec{font-size:15px;}
  table.spec thead th{
    background:var(--surface-2);
    color:var(--brand-deep);
    font-weight:600;
    font-size:13.5px;
    text-align:left;
    padding:14px 22px;
    letter-spacing:.2px;
  }
  table.spec tbody td{
    padding:15px 22px;
    border-top:1px solid var(--line);
    vertical-align:top;
  }
  table.spec tbody tr{transition:background .2s var(--ease);}
  table.spec tbody tr:hover{background:var(--surface-2);}
  table.spec td.k{font-weight:600;color:var(--ink);width:22%;}
  table.spec td.s{width:20%;}
  .spec-mobile-tip{display:none;font-size:13px;color:var(--muted);margin-top:10px;}

  /* ---------- 选择建议 ---------- */
  .choose-grid{
    display:grid;
    grid-template-columns:.85fr 1.6fr;
    gap:48px;
    align-items:start;
  }
  .choose-side{position:sticky;top:100px;}
  .check-list{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:0 36px;
  }
  .check-item{
    display:flex;
    gap:14px;
    padding:20px 0;
    border-top:1px dashed var(--line);
  }
  .check-icon{
    flex:0 0 30px;
    width:30px;height:30px;
    border-radius:10px;
    background:rgba(14,124,107,.10);
    color:var(--brand-deep);
    display:flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;
  }
  .check-title{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px;}
  .check-text{font-size:14.5px;color:var(--text);line-height:1.7;}

  /* ---------- 状态更新 ---------- */
  .status-row{
    display:grid;
    grid-template-columns:96px 1fr;
    gap:28px;
    align-items:start;
    padding:28px 0;
    border-top:1px solid var(--line);
  }
  .status-row:last-child{border-bottom:1px solid var(--line);}
  .status-num{
    font-size:38px;
    font-weight:700;
    line-height:1;
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    font-variant-numeric:tabular-nums;
  }
  .status-title{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:8px;}
  .status-text{font-size:15px;color:var(--text);max-width:820px;}
  .status-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}

  /* ---------- FAQ ---------- */
  .faq-grid{
    display:grid;
    grid-template-columns:280px 1fr;
    gap:48px;
    align-items:start;
  }
  .faq-side{position:sticky;top:100px;}
  .faq-side p{font-size:15px;color:var(--muted);margin-top:14px;}
  .faq-item{
    position:relative;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-small);
    margin-bottom:12px;
    overflow:hidden;
    transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
  }
  .faq-item:hover{box-shadow:var(--shadow-1);border-color:#D2E2DD;}
  .faq-item.open{box-shadow:var(--shadow-1);}
  .faq-item.open::before{
    content:"";
    position:absolute;
    left:0;top:12px;bottom:12px;
    width:3px;
    border-radius:999px;
    background:var(--grad);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    text-align:left;
    padding:20px 22px;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
  }
  .faq-icon{
    flex:0 0 auto;
    color:var(--brand);
    transition:transform .3s var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    opacity:0;
    overflow:hidden;
    transition:max-height .36s var(--ease),opacity .3s var(--ease);
  }
  .faq-item.open .faq-a{max-height:360px;opacity:1;}
  .faq-a-inner{
    padding:0 22px 22px;
    font-size:15.5px;
    line-height:1.8;
    color:var(--text);
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-hero);
    padding:46px 48px;
    background:var(--grad);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:36px;
    box-shadow:var(--shadow-2);
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-80px;top:-80px;
    width:320px;height:320px;
    border-radius:50%;
    background:rgba(255,255,255,.10);
    pointer-events:none;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    right:60px;bottom:-120px;
    width:240px;height:240px;
    border-radius:50%;
    background:rgba(255,255,255,.08);
    pointer-events:none;
  }
  .cta-content{position:relative;z-index:1;max-width:640px;}
  .cta-title{
    color:#fff;
    font-size:28px;
    font-weight:700;
    margin-bottom:10px;
    letter-spacing:-.2px;
  }
  .cta-text{font-size:15.5px;color:rgba(255,255,255,.9);}
  .cta-band .btn-ghost{
    background:#fff;
    border-color:transparent;
    color:var(--brand-deep);
    position:relative;
    z-index:1;
  }
  .cta-band .btn-ghost:hover{background:#F1FBF8;color:var(--brand-deep);}
  .back-home{margin-top:28px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#0B1F1C;
    color:rgba(255,255,255,.72);
    padding:64px 0 24px;
    margin-top:96px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:32px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-mark{
    width:34px;height:34px;border-radius:12px;
    background:var(--grad);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-weight:700;font-size:16px;
  }
  .footer-brand-name{color:#fff;font-weight:700;font-size:16px;}
  .footer-intro{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
  .footer-col h4{
    color:#fff;
    font-size:15px;
    font-weight:600;
    margin-bottom:16px;
  }
  .footer-links{display:flex;flex-direction:column;gap:11px;font-size:14.5px;}
  .footer-links a,.footer-links span{
    color:rgba(255,255,255,.72);
    transition:color .2s var(--ease),transform .2s var(--ease);
    display:inline-block;
  }
  .footer-links a:hover{color:#7FD8C4;transform:translateX(2px);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    margin-top:44px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:rgba(255,255,255,.52);
  }

  /* ---------- 返回顶部 ---------- */
  .to-top{
    position:fixed;
    right:24px;
    bottom:24px;
    width:46px;height:46px;
    border-radius:50%;
    background:var(--grad);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 14px 28px -14px rgba(10,90,78,.8);
    opacity:0;
    visibility:hidden;
    transform:translateY(10px);
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
    z-index:70;
  }
  .to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{transform:translateY(-2px);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-actions .btn{display:none;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-band{padding:40px 28px;}
    .hero-band h1{font-size:34px;}
    .channel-main,.channel-aside{grid-column:span 12;}
    .channel-aside{flex-direction:row;flex-wrap:wrap;}
    .channel-aside .card{flex:1 1 280px;}
    .choose-grid{grid-template-columns:1fr;gap:28px;}
    .choose-side{position:static;}
    .faq-grid{grid-template-columns:1fr;gap:24px;}
    .faq-side{position:static;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding:72px 0;}
    .sec-title{font-size:26px;}
  }

  @media (max-width:767px){
    .brand-text{font-size:15px;}
    .hero-band{padding:34px 22px;border-radius:22px;}
    .hero-band h1{font-size:30px;}
    .hero-sub{font-size:15.5px;}
    .section{padding:56px 0;}
    .section-alt{border-radius:0;}
    .sec-title{font-size:23px;padding-left:14px;}
    .sec-title::before{width:5px;height:18px;}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
    .check-list{grid-template-columns:1fr;}
    .status-row{grid-template-columns:1fr;gap:12px;padding:22px 0;}
    .status-num{font-size:30px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;gap:24px;}
    .cta-title{font-size:23px;}
    .card-body{padding:20px;}
    .card-title{font-size:19px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .to-top{right:16px;bottom:16px;}
  }

  @media (max-width:767px){
    table.spec{font-size:14.5px;}
    table.spec thead{display:none;}
    table.spec tbody tr{
      display:block;
      padding:16px 18px;
      border-top:1px solid var(--line);
    }
    table.spec tbody tr:first-child{border-top:0;}
    table.spec tbody td{
      display:flex;
      gap:14px;
      border:0;
      padding:7px 0;
      width:auto;
    }
    table.spec td.k{width:auto;font-weight:600;}
    table.spec td::before{
      content:attr(data-label);
      flex:0 0 84px;
      color:var(--muted);
      font-size:13px;
      font-weight:400;
      padding-top:1px;
    }
    .spec-mobile-tip{display:block;}
  }

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

/* roulang page: category2 */
:root{
    --brand:#0E7C6B;
    --brand-deep:#0A5A4E;
    --brand-soft:#17A38C;
    --accent:#F2A03B;
    --coral:#FF6B4A;
    --bg:#F7FAF9;
    --surface:#FFFFFF;
    --surface-2:#EEF5F2;
    --ink:#12211E;
    --text:#3C4C49;
    --muted:#7A8B87;
    --line:#E2EAE7;
    --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
    --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
    --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
    --radius-lg:28px;
    --radius:20px;
    --radius-sm:16px;
    --pill:999px;
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  html body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}

  .container{max-width:1200px;margin:0 auto;padding:0 24px}
  @media (min-width:1440px){.container{max-width:1320px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-1)}
  .header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:36px;height:36px;border-radius:12px;background-image:var(--grad);
    color:#fff;font-size:17px;font-weight:700;display:grid;place-items:center;
    box-shadow:0 8px 18px -10px rgba(10,90,78,.8);
  }
  .brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap}
  .nav-links{display:flex;align-items:center;gap:2px;background:var(--surface-2);padding:4px;border-radius:var(--pill)}
  .nav-links a{
    display:inline-block;padding:8px 14px;border-radius:var(--pill);
    font-size:14px;font-weight:500;color:var(--text);
    transition:color .2s var(--ease),background .2s var(--ease);
    white-space:nowrap;
  }
  .nav-links a:hover{color:var(--brand-deep);background:rgba(255,255,255,.75)}
  .nav-links a.active{background:#fff;color:var(--brand);font-weight:600;box-shadow:0 1px 2px rgba(12,40,34,.06)}
  .header-actions{display:flex;align-items:center;gap:12px}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);
    background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);margin:0 auto}
  .nav-toggle span + span{margin-top:4px}
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--surface);
    transform:translateX(100%);transition:transform .3s var(--ease);
    display:flex;flex-direction:column;padding:20px 24px 32px;overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
    font-size:18px;color:var(--brand-deep);cursor:pointer;
  }
  .drawer-nav{display:flex;flex-direction:column;gap:8px}
  .drawer-nav a{
    padding:16px 18px;border-radius:16px;font-size:17px;font-weight:600;color:var(--ink);
    background:var(--surface-2);
  }
  .drawer-nav a.active{background-image:var(--grad);color:#fff}
  .drawer-cta{margin-top:auto;padding-top:24px}

  /* ---------- buttons / badges ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--pill);padding:14px 28px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;line-height:1.2;
    transition:background-position .3s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .25s var(--ease),transform .2s var(--ease);
  }
  .btn-sm{padding:10px 18px;font-size:14px}
  .btn-primary{background-image:var(--grad);background-size:200% 100%;background-position:0 0;color:#fff;box-shadow:0 10px 24px -14px rgba(10,90,78,.75)}
  .btn-primary:hover{background-position:100% 0;box-shadow:var(--shadow-2);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-deep)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
  .btn-link{background:none;padding:0;color:var(--brand);font-weight:600;gap:6px}
  .btn-link .arw{transition:transform .2s var(--ease);display:inline-block}
  .btn-link:hover .arw{transform:translateX(3px)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;border-radius:var(--pill);
    padding:6px 14px;font-size:13px;font-weight:600;white-space:nowrap;line-height:1.5;
  }
  .badge-soft{background:rgba(14,124,107,.08);color:var(--brand);border:1px solid rgba(14,124,107,.2)}
  .badge-accent{background:rgba(242,160,59,.14);color:#A96513;border:1px solid rgba(242,160,59,.32)}
  .badge-line{background:#fff;color:var(--text);border:1px solid var(--line)}

  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
  .crumbs a{color:var(--muted)}
  .crumbs a:hover{color:var(--brand)}
  .crumbs .sep{opacity:.6}
  .crumbs .cur{color:var(--brand-deep);font-weight:600}

  /* ---------- banner ---------- */
  .page-banner{padding:36px 0 0}
  .banner-inner{
    background:var(--surface-2);border-radius:var(--radius-lg);
    padding:48px;position:relative;overflow:hidden;
    display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:48px;align-items:center;
  }
  .banner-inner::after{
    content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle at 30% 30%,rgba(47,183,155,.24),rgba(47,183,155,0) 70%);
    pointer-events:none;
  }
  .banner-kicker{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
  .banner-title{font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink);margin-bottom:18px}
  .banner-title em{font-style:normal;color:var(--brand)}
  .banner-lead{font-size:16.5px;color:var(--text);max-width:620px;margin-bottom:26px}
  .banner-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
  .banner-stats{display:flex;gap:12px;flex-wrap:wrap}
  .banner-stats .stat{background:rgba(255,255,255,.82)}

  .banner-card{
    background:#fff;border-radius:var(--radius);border:1px solid var(--line);
    box-shadow:var(--shadow-2);padding:16px;position:relative;z-index:1;
  }
  .banner-card-media{border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2)}
  .banner-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
  .banner-card:hover .banner-card-media img{transform:scale(1.03)}
  .banner-card-body{padding:16px 6px 6px}
  .banner-card-body h2{font-size:18px;font-weight:600;color:var(--brand-deep);margin:10px 0 6px}
  .banner-card-body p{font-size:14px;color:var(--muted)}
  .mini-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
  .mini-row span{font-size:13px;color:var(--text);display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
  .mini-row span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-soft)}

  /* ---------- sections ---------- */
  section{padding:96px 0 0}
  .sec-head{max-width:760px;margin-bottom:44px}
  .sec-title{font-size:32px;line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.4px;position:relative;padding-left:18px;margin-bottom:14px}
  .sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:99px;background-image:var(--grad)}
  .sec-desc{font-size:16px;color:var(--text)}

  /* ---------- timeline ---------- */
  .timeline{position:relative}
  .timeline::before{
    content:"";position:absolute;left:50%;top:12px;bottom:12px;width:2px;transform:translateX(-50%);
    background:linear-gradient(180deg,rgba(10,90,78,.55),rgba(47,183,155,.45),rgba(127,216,196,.15));
  }
  .tl-item{display:grid;grid-template-columns:1fr 1fr;column-gap:64px;position:relative;padding-bottom:28px}
  .tl-item .tl-card{grid-column:1}
  .tl-item:nth-child(even) .tl-card{grid-column:2}
  .tl-node{
    position:absolute;left:50%;top:26px;transform:translateX(-50%);
    width:38px;height:38px;border-radius:50%;background-image:var(--grad);color:#fff;
    font-size:14px;font-weight:700;display:grid;place-items:center;z-index:2;
    box-shadow:0 10px 22px -12px rgba(10,90,78,.9);font-variant-numeric:tabular-nums;
  }
  .tl-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-1);
    transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  }
  .tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,124,107,.25)}
  .tl-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:10px}
  .tl-head h3{font-size:22px;font-weight:600;color:var(--brand-deep);line-height:1.4}
  .tl-card p{font-size:15.5px;color:var(--text)}
  .tl-meta{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}

  /* ---------- scroll row ---------- */
  .scroll-row{
    display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .scroll-row::-webkit-scrollbar{height:8px}
  .scroll-row::-webkit-scrollbar-thumb{background:rgba(14,124,107,.25);border-radius:99px}
  .scroll-row::-webkit-scrollbar-track{background:var(--surface-2);border-radius:99px}
  .prep-card{
    flex:0 0 268px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);
    transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  }
  .prep-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
  .prep-ico{
    width:40px;height:40px;border-radius:14px;background:rgba(14,124,107,.1);color:var(--brand);
    display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:14px;
  }
  .prep-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px}
  .prep-card p{font-size:14px;color:var(--muted)}

  /* ---------- notes ---------- */
  .note-list{display:grid;gap:16px}
  .note-item{
    display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .25s var(--ease),transform .25s var(--ease);
  }
  .note-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .note-index{
    width:56px;height:56px;border-radius:18px;background:rgba(242,160,59,.14);color:#A96513;
    display:grid;place-items:center;font-weight:700;font-size:18px;font-variant-numeric:tabular-nums;
  }
  .note-item h3{font-size:19px;font-weight:600;color:var(--brand-deep);margin-bottom:6px}
  .note-item p{font-size:15px;color:var(--text)}

  /* ---------- stats band ---------- */
  .stat-band{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:32px;box-shadow:var(--shadow-1);
  }
  .stat{padding:4px}
  .stat-num{font-size:32px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
  .stat-num small{font-size:15px;font-weight:600;color:var(--brand-deep);margin-left:4px}
  .stat-label{font-size:13.5px;color:var(--muted);margin-top:6px}

  /* ---------- faq ---------- */
  .faq-list{display:grid;gap:12px}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
    overflow:hidden;transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
  }
  .faq-item:hover{box-shadow:var(--shadow-1)}
  .faq-item.is-open{border-color:rgba(14,124,107,.35);box-shadow:var(--shadow-1)}
  .faq-q{
    width:100%;background:none;border:0;cursor:pointer;text-align:left;
    padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);
    display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:99px;
    background-image:var(--grad);opacity:0;transition:opacity .25s var(--ease);
  }
  .faq-item.is-open .faq-q::before{opacity:1}
  .faq-arrow{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
    display:grid;place-items:center;color:var(--brand);font-size:12px;
    transition:transform .3s var(--ease),background .25s var(--ease),color .25s var(--ease);
  }
  .faq-item.is-open .faq-arrow{transform:rotate(180deg);background-image:var(--grad);color:#fff;border-color:transparent}
  .faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .35s var(--ease),opacity .3s var(--ease)}
  .faq-item.is-open .faq-a{opacity:1}
  .faq-a-inner{padding:0 22px 22px 22px;font-size:15.5px;color:var(--text)}

  /* ---------- cta ---------- */
  .cta-card{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    background-image:var(--grad);color:#fff;padding:48px;
    display:flex;align-items:center;justify-content:space-between;gap:36px;
    box-shadow:var(--shadow-2);
  }
  .cta-deco{position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.22);pointer-events:none}
  .cta-deco.d1{width:320px;height:320px;right:-80px;top:-120px}
  .cta-deco.d2{width:200px;height:200px;right:60px;bottom:-110px;background:rgba(255,255,255,.06)}
  .cta-card h2{font-size:30px;font-weight:700;letter-spacing:-.4px;margin-bottom:12px;position:relative;z-index:1}
  .cta-card p{font-size:16px;color:rgba(255,255,255,.86);max-width:620px;position:relative;z-index:1}
  .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
  .btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 14px 30px -16px rgba(0,0,0,.4)}
  .btn-light:hover{transform:translateY(-1px)}
  .btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.18)}

  /* ---------- footer ---------- */
  .site-footer{margin-top:96px;background:#0B1F1C;color:rgba(255,255,255,.78);padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer-mark{
    width:34px;height:34px;border-radius:12px;background-image:var(--grad);color:#fff;
    display:grid;place-items:center;font-weight:700;font-size:16px;
  }
  .footer-brand-name{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.2px}
  .footer-intro{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:360px}
  .footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
  .footer-links a:hover{color:#7FD8C4;transform:translateX(2px)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;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,.55);
  }

  .to-top{
    position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
    background-image:var(--grad);color:#fff;border:0;cursor:pointer;font-size:17px;
    display:grid;place-items:center;box-shadow:var(--shadow-2);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
    z-index:70;
  }
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

  /* ---------- responsive ---------- */
  @media (max-width:1199px){
    .banner-title{font-size:38px}
  }
  @media (max-width:1023px){
    .nav-links{display:none}
    .nav-toggle{display:grid}
    .nav-cta{display:none}
    .banner-inner{grid-template-columns:1fr;padding:36px;gap:32px}
    .banner-title{font-size:32px}
    .sec-title{font-size:27px}
    section{padding-top:64px}
    .timeline::before{left:19px;transform:none}
    .tl-item{grid-template-columns:1fr;column-gap:0;padding-left:54px;padding-bottom:20px}
    .tl-item .tl-card,
    .tl-item:nth-child(even) .tl-card{grid-column:1}
    .tl-node{left:19px;transform:translateX(-50%);top:22px}
    .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:24px}
    .cta-card{flex-direction:column;align-items:flex-start;padding:36px}
    .cta-card h2{font-size:25px}
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:767px){
    .container{padding:0 18px}
    .note-item{grid-template-columns:1fr;gap:14px}
    .note-index{width:46px;height:46px;border-radius:14px;font-size:16px}
    .banner-inner{padding:26px;border-radius:24px}
    .banner-title{font-size:28px}
    .banner-lead{font-size:15.5px}
    .tl-head{flex-direction:column;gap:8px}
    .tl-head h3{font-size:19px}
    .cta-card{padding:28px;border-radius:24px}
    .site-footer{padding:48px 0 24px;margin-top:64px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .footer-bottom{flex-direction:column}
    .to-top{right:16px;bottom:16px}
    section{padding-top:56px}
  }
  @media (max-width:520px){
    .banner-title{font-size:26px}
    .sec-title{font-size:23px;padding-left:14px}
    .stat-band{grid-template-columns:1fr;padding:20px}
    .prep-card{flex:0 0 232px}
    .btn{padding:12px 22px;font-size:14.5px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.01ms !important;animation-duration:.01ms !important}
    html{scroll-behavior:auto}
    .tl-card:hover,.prep-card:hover,.note-item:hover{transform:none}
  }

/* roulang page: category3 */
:root{
  --brand:#0E7C6B;
  --brand-deep:#0A5A4E;
  --brand-soft:#17A38C;
  --accent:#F2A03B;
  --coral:#FF6B4A;
  --bg:#F7FAF9;
  --surface:#FFFFFF;
  --surface-2:#EEF5F2;
  --ink:#12211E;
  --text:#3C4C49;
  --muted:#7A8B87;
  --line:#E2EAE7;
  --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
  --grad-soft:linear-gradient(118deg,rgba(10,90,78,.08) 0%,rgba(127,216,196,.18) 100%);
  --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
  --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
  --r-hero:28px;
  --r-card:20px;
  --r-sm:16px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
html body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
*{box-sizing:border-box;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;height:68px;gap:14px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  box-shadow:0 8px 18px -10px rgba(10,90,78,.85);
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:2px;margin-left:auto;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease);white-space:nowrap;
}
.nav-links a:hover{background:var(--surface-2);color:var(--brand-deep);}
.nav-links a.active{background:rgba(14,124,107,.1);color:var(--brand-deep);font-weight:600;}
.header-actions{display:none;margin-left:12px;}
@media (min-width:1024px){.header-actions{display:flex;align-items:center;gap:10px;}}
.nav-toggle{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);background:var(--surface-2);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:all .2s var(--ease);
}
.btn-primary{
  background:var(--grad);background-size:220% 100%;background-position:0 0;color:#fff;
  box-shadow:0 14px 28px -16px rgba(10,90,78,.85);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--brand-deep);}
.btn-ghost:hover{border-color:var(--brand);background:#fff;}
.btn-light{background:#fff;border-color:#fff;color:var(--brand-deep);}
.btn-light:hover{background:#E9F6F2;}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:15px;padding:6px 2px;}
.btn-text .arrow{transition:transform .2s var(--ease);}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:#fff;padding:20px 22px 28px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-nav{margin-top:26px;display:flex;flex-direction:column;gap:8px;}
.drawer-nav a{
  padding:14px 16px;border-radius:16px;background:var(--surface-2);
  font-size:17px;font-weight:600;color:var(--ink);
}
.drawer-nav a.active{background:rgba(14,124,107,.12);color:var(--brand-deep);}
.drawer-foot{margin-top:auto;padding-top:22px;}
.drawer-foot .btn{width:100%;}
@media (min-width:1024px){.drawer{display:none;}}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:22px;}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;margin-top:18px;border-radius:var(--r-hero);overflow:hidden;
  border:1px solid var(--line);background-color:var(--surface-2);
  background-image:linear-gradient(115deg,rgba(255,255,255,.95) 0%,rgba(238,245,242,.9) 44%,rgba(127,216,196,.45) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:26px;padding:32px 22px 34px;}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:42px;padding:50px 44px;align-items:center;}}
.hero-tag{margin-bottom:14px;}
.hero-title{
  font-size:30px;line-height:1.25;letter-spacing:-.5px;font-weight:700;color:var(--ink);
}
@media (min-width:1024px){.hero-title{font-size:44px;}}
.hero-sub{margin-top:16px;font-size:16px;color:var(--text);max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);padding:18px;
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.hero-card-media{position:relative;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2);}
.hero-card-media img{width:100%;height:100%;object-fit:cover;}
.hero-card-info{display:flex;flex-direction:column;gap:10px;margin-top:16px;}
.info-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--muted);padding:10px 13px;background:var(--surface-2);border-radius:12px;
}
.info-row strong{color:var(--ink);font-weight:600;font-size:14px;font-variant-numeric:tabular-nums;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  font-size:13px;font-weight:600;white-space:nowrap;
  background:rgba(14,124,107,.08);color:var(--brand-deep);border:1px solid rgba(14,124,107,.2);
}
.badge-accent{background:rgba(242,160,59,.16);color:#8A5512;border-color:rgba(242,160,59,.36);}
.badge-muted{background:#F1F5F3;color:var(--muted);border-color:var(--line);}
.badge-dot{width:7px;height:7px;border-radius:999px;background:var(--brand-soft);}

/* ---------- section base ---------- */
.section{padding-top:56px;}
@media (min-width:1024px){.section{padding-top:88px;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px;}
.section-title{
  position:relative;padding-left:16px;font-size:23px;font-weight:700;color:var(--ink);
  letter-spacing:-.3px;line-height:1.3;
}
@media (min-width:1024px){.section-title{font-size:32px;}}
.section-title::before{
  content:"";position:absolute;left:0;top:5px;width:6px;height:22px;border-radius:999px;background:var(--grad);
}
@media (min-width:1024px){.section-title::before{height:28px;top:8px;}}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--text);max-width:66ch;}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
@media (min-width:768px){.stat-strip{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px;box-shadow:var(--shadow-1);
}
.stat-num{font-size:24px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{margin-top:6px;font-size:13px;color:var(--muted);}

/* ---------- rail ---------- */
.rail{
  display:flex;gap:16px;overflow-x:auto;padding:6px 4px 20px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:var(--surface-2);border-radius:999px;}
.rail::-webkit-scrollbar-thumb{background:rgba(14,124,107,.35);border-radius:999px;}
.rail-card{
  flex:0 0 78%;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
@media (min-width:768px){.rail-card{flex:0 0 300px;}}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.rail-card h3{margin-top:14px;font-size:18px;font-weight:600;color:var(--brand-deep);}
.rail-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text);}

/* ---------- table ---------- */
.table-tools{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;}
.scroll-hint{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:12px;
}
@media (min-width:768px){.scroll-hint{display:none;}}
.table-wrap{
  overflow-x:auto;overflow-y:hidden;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
@media (min-width:1024px){.table-wrap{overflow:visible;}}
.compare{width:100%;min-width:880px;border-collapse:separate;border-spacing:0;font-size:14.5px;}
.compare thead th{
  position:sticky;top:0;z-index:3;background:var(--surface-2);color:var(--ink);
  font-weight:600;font-size:14px;text-align:left;padding:15px 18px;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.compare thead th:first-child{left:0;z-index:5;border-top-left-radius:18px;}
.compare thead th:last-child{border-top-right-radius:18px;}
@media (min-width:1024px){
  .compare thead th{top:68px;}
}
.compare tbody th,
.compare tbody td{
  padding:15px 18px;border-bottom:1px solid var(--line);text-align:left;
  font-weight:400;color:var(--text);vertical-align:middle;background:#fff;
}
.compare tbody th{
  position:sticky;left:0;z-index:2;color:var(--ink);font-weight:600;min-width:160px;
  box-shadow:1px 0 0 var(--line);
}
.compare tbody tr:last-child th,
.compare tbody tr:last-child td{border-bottom:0;}
.compare tbody tr:hover th,
.compare tbody tr:hover td{background:#F4FAF8;}
.mark{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:4px 11px;border-radius:999px;white-space:nowrap;
}
.mark-yes{background:rgba(14,124,107,.1);color:var(--brand-deep);border:1px solid rgba(14,124,107,.22);}
.mark-no{background:#F2F5F4;color:var(--muted);border:1px solid var(--line);}

/* ---------- verdict cards ---------- */
.verdict-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){.verdict-grid{grid-template-columns:7fr 5fr;}}
.verdict-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.verdict-card-accent{background:var(--grad-soft);border-color:rgba(14,124,107,.22);}
.verdict-card h3{font-size:20px;font-weight:600;color:var(--brand-deep);}
.verdict-card p{margin-top:10px;font-size:15px;color:var(--text);}
.verdict-list{display:flex;flex-direction:column;gap:13px;margin-top:18px;}
.verdict-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--text);}
.dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:999px;margin-top:4px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;background:rgba(14,124,107,.12);color:var(--brand-deep);
}
.dot-no{background:rgba(122,139,135,.16);color:var(--muted);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:26px;}
@media (min-width:1024px){.faq-wrap{grid-template-columns:280px 1fr;gap:44px;}}
.faq-aside-note{font-size:14px;color:var(--muted);line-height:1.8;margin-top:14px;}
@media (min-width:1024px){.faq-aside-inner{position:sticky;top:100px;}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item.is-open{box-shadow:var(--shadow-1);border-color:rgba(14,124,107,.28);}
.faq-q{
  width:100%;position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;
}
@media (min-width:768px){.faq-q{font-size:17px;}}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:999px;
  background:var(--grad);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--surface-2);
  color:var(--brand-deep);display:inline-flex;align-items:center;justify-content:center;
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(14,124,107,.12);}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s var(--ease),opacity .3s var(--ease);}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:56px;border-radius:var(--r-hero);
  background:var(--grad);color:#fff;padding:34px 24px;
}
@media (min-width:1024px){.cta-band{margin-top:88px;padding:46px 48px;}}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24),transparent 66%);
}
.cta-band::before{
  content:"";position:absolute;left:-40px;bottom:-120px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 68%);
}
.cta-inner{position:relative;display:flex;flex-direction:column;gap:22px;}
@media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:44px;}}
.cta-title{font-size:22px;font-weight:700;letter-spacing:-.3px;}
@media (min-width:1024px){.cta-title{font-size:28px;}}
.cta-text{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.cta-link{color:#fff;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.cta-link .arrow{transition:transform .2s var(--ease);}
.cta-link:hover .arrow{transform:translateX(3px);}

/* ---------- footer ---------- */
.site-footer{margin-top:72px;background:#0B1F1C;color:rgba(255,255,255,.72);padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:4fr 2.4fr 2.4fr 3fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.footer-brand-name{color:#fff;font-weight:700;font-size:16px;}
.footer-intro{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:42ch;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer-links a,
.footer-links span{
  color:rgba(255,255,255,.72);display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:#7FD8C4;transform:translateX(2px);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:999px;
  background:var(--grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{transform:translateY(-2px);}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --brand:#0E7C6B;
  --brand-deep:#0A5A4E;
  --brand-soft:#17A38C;
  --accent:#F2A03B;
  --coral:#FF6B4A;
  --bg:#F7FAF9;
  --surface:#FFFFFF;
  --surface-2:#EEF5F2;
  --ink:#12211E;
  --text:#3C4C49;
  --muted:#7A8B87;
  --line:#E2EAE7;
  --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
  --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
  --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
h1{font-size:46px;line-height:1.25;letter-spacing:-.5px}
h2{font-size:32px;line-height:1.3;letter-spacing:-.3px}
h3{font-size:22px;line-height:1.45;font-weight:600;color:var(--brand-deep)}
h4{font-size:16px;line-height:1.5}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
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:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:12px;background-image:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;background:var(--surface-2);padding:5px;border-radius:999px}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--brand-deep);background:rgba(255,255,255,.75)}
.nav-links a.active{
  background:#fff;color:var(--brand);font-weight:600;
  box-shadow:0 1px 2px rgba(12,40,34,.07);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);
  background:#fff;place-items:center;color:var(--brand-deep);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);background:var(--surface-2)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;transition:transform .2s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.open span{transform:rotate(45deg)}
.nav-toggle.open span::before{top:0;transform:rotate(90deg)}
.nav-toggle.open span::after{top:0;transform:rotate(90deg);opacity:0}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateX(100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 32px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:42px;height:42px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;
  font-size:20px;color:var(--brand-deep);background:#fff;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:16px 18px;border-radius:16px;font-size:17px;font-weight:600;color:var(--ink);
  background:var(--surface-2);transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:#e3efeb;color:var(--brand-deep)}
.drawer-nav a.active{background-image:var(--grad);color:#fff}
.drawer-cta{margin-top:auto;padding-top:28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-position .35s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background-image:var(--grad);background-size:220% 100%;background-position:0 0;
  color:#fff;box-shadow:0 12px 26px -14px rgba(10,90,78,.75);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-1px)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--brand-deep)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(0,0,0,.5)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text .arrow{transition:transform .2s var(--ease)}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;white-space:nowrap;line-height:1.5;
}
.badge-brand{background:rgba(14,124,107,.08);color:var(--brand-deep);border:1px solid rgba(14,124,107,.2)}
.badge-accent{background:rgba(242,160,59,.14);color:#8A5308;border:1px solid rgba(242,160,59,.32)}
.badge-soft{background:var(--surface-2);color:var(--text);border:1px solid var(--line)}
.badge-dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- 面包屑 ---------- */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs a{color:var(--muted);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C4D2CE}
.crumbs .current{color:var(--brand-deep);font-weight:600}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;margin-top:20px;border-radius:28px;overflow:hidden;
  background-image:linear-gradient(118deg,rgba(10,90,78,.92) 0%,rgba(14,124,107,.88) 46%,rgba(47,183,155,.84) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;padding:52px 48px;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,216,196,.34),rgba(127,216,196,0) 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;position:relative;z-index:2}
.page-hero h1{color:#fff;max-width:640px}
.page-hero .hero-lead{color:rgba(255,255,255,.9);font-size:16.5px;margin-top:18px;max-width:560px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-badges .badge{background:rgba(255,255,255,.14);color:#EAFBF6;border:1px solid rgba(255,255,255,.28)}
.hero-badges .badge strong{font-variant-numeric:tabular-nums;font-weight:700;color:#fff}
.hero-card{
  background:#fff;border-radius:20px;padding:16px;box-shadow:var(--shadow-2);
}
.hero-card .hero-media{
  border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:var(--surface-2);
}
.hero-card .hero-media img{width:100%;height:100%;object-fit:cover}
.hero-card .hero-note{
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 6px 4px;
  font-size:13px;color:var(--muted);
}
.hero-card .hero-note strong{color:var(--brand-deep);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:104px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-title{position:relative;padding-left:20px}
.sec-title::before{
  content:"";position:absolute;left:0;top:.24em;width:6px;height:22px;border-radius:999px;background:var(--grad);
}
.sec-desc{margin-top:14px;color:var(--muted);font-size:15.5px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}

/* ---------- Z 字图文 ---------- */
.z-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:52px 0;border-bottom:1px solid var(--line);
}
.z-row:last-child{border-bottom:0;padding-bottom:0}
.z-row:first-child{padding-top:0}
.z-row .z-media{order:1}
.z-row .z-body{order:2}
.z-row.reverse .z-media{order:2}
.z-row.reverse .z-body{order:1}
.z-media{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:4/3;
  background:var(--surface-2);box-shadow:var(--shadow-1);
}
.z-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.z-row:hover .z-media img{transform:scale(1.03)}
.z-index{
  position:absolute;left:16px;top:16px;z-index:2;
  background:rgba(255,255,255,.92);border-radius:999px;padding:6px 14px;
  font-size:13px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;
}
.z-body h3{margin-top:16px;font-size:24px;color:var(--ink);font-weight:700}
.z-body p{margin-top:14px;color:var(--text)}
.z-body .z-points{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.z-body .z-points li{
  position:relative;padding-left:22px;font-size:15px;color:var(--text);
}
.z-body .z-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:3px;
  background-image:var(--grad);
}
.z-foot{margin-top:24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ---------- 速配清单 ---------- */
.fit-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:12px 28px;box-shadow:var(--shadow-1);
}
.fit-row{
  display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start;
  padding:22px 0;border-bottom:1px dashed var(--line);
}
.fit-row:last-child{border-bottom:0}
.fit-label{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:15.5px}
.fit-label .fit-dot{
  width:10px;height:10px;border-radius:4px;background-image:var(--grad);flex-shrink:0;
}
.fit-text{font-size:15px;color:var(--text)}
.fit-meta{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#CFDFDA}
.faq-item.open{border-color:rgba(14,124,107,.34);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);text-align:left;position:relative;
}
.faq-q span{position:relative;padding-left:0;transition:padding .2s var(--ease)}
.faq-item.open .faq-q span{padding-left:12px}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:999px;
  background-image:var(--grad);opacity:0;transition:opacity .25s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-arrow{flex-shrink:0;color:var(--brand);transition:transform .3s var(--ease)}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .38s var(--ease),opacity .3s var(--ease)}
.faq-item.open .faq-a{max-height:360px;opacity:1}
.faq-a p{padding:0 22px 20px;font-size:15.5px;color:var(--text)}

/* ---------- CTA 条 ---------- */
.cta-bar-wrap{padding:0 0 104px}
.cta-bar{
  position:relative;overflow:hidden;border-radius:999px;
  background-image:var(--grad);background-size:180% 100%;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:26px 40px;color:#fff;box-shadow:0 24px 48px -28px rgba(10,90,78,.8);
}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.cta-bar-text{position:relative;z-index:2}
.cta-bar-text h3{color:#fff;font-size:21px}
.cta-bar-text p{color:rgba(255,255,255,.88);font-size:14.5px;margin-top:6px}
.cta-bar .btn{position:relative;z-index:2;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1F1C;color:rgba(255,255,255,.82);padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-mark{
  width:34px;height:34px;border-radius:12px;background-image:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;
}
.footer-brand-name{color:#fff;font-weight:700;font-size:16px}
.footer-intro{font-size:14px;line-height:1.8;color:rgba(255,255,255,.64);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:#7FD8C4;transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:24px;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);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background-image:var(--grad);color:#fff;display:grid;place-items:center;
  box-shadow:0 14px 30px -14px rgba(10,90,78,.8);
  opacity:0;visibility:hidden;transform:translateY(10px);z-index:70;
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  h1{font-size:34px}
  h2{font-size:26px}
  .section{padding:64px 0}
  .cta-bar-wrap{padding-bottom:64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:40px 28px}
  .z-row{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .z-row .z-media,.z-row.reverse .z-media{order:1}
  .z-row .z-body,.z-row.reverse .z-body{order:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:18px}
  body{font-size:15.5px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:32px 20px;border-radius:22px}
  .fit-panel{padding:8px 20px}
  .fit-row{grid-template-columns:1fr;gap:8px;padding:18px 0}
  .cta-bar{flex-direction:column;align-items:flex-start;border-radius:24px;padding:24px}
  .cta-bar .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:16px}
  .z-body h3{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category5 */
:root{
  --brand:#0E7C6B;
  --brand-deep:#0A5A4E;
  --brand-soft:#17A38C;
  --accent:#F2A03B;
  --coral:#FF6B4A;
  --bg:#F7FAF9;
  --surface:#FFFFFF;
  --surface-2:#EEF5F2;
  --ink:#12211E;
  --text:#3C4C49;
  --muted:#7A8B87;
  --line:#E2EAE7;
  --grad:linear-gradient(118deg,#0A5A4E 0%,#0E7C6B 42%,#2FB79B 78%,#7FD8C4 100%);
  --shadow-1:0 1px 2px rgba(12,40,34,.05),0 10px 28px -16px rgba(12,40,34,.22);
  --shadow-2:0 2px 6px rgba(12,40,34,.07),0 22px 44px -20px rgba(10,90,78,.32);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s cubic-bezier(.2,.7,.3,1);
}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:700;font-size:17px;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:0;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:4px;background:var(--surface-2);padding:5px;border-radius:999px}
.nav-links a{
  display:inline-block;padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--text);
  transition:all .2s cubic-bezier(.2,.7,.3,1);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand-deep);background:rgba(14,124,107,.08)}
.nav-links a.active{background:var(--surface);color:var(--brand);font-weight:600;box-shadow:var(--shadow-1)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;color:var(--brand-deep);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;transition:all .2s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;
}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-primary{
  background:var(--grad);background-size:200% 100%;background-position:0 0;color:#fff;
  box-shadow:0 10px 24px -14px rgba(10,90,78,.7);
}
.btn-primary:hover{background-position:100% 0;box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--brand-deep)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-text{
  background:none;border:none;color:var(--brand);font-weight:600;padding:6px 0;font-size:15px;
  display:inline-flex;align-items:center;gap:6px;
}
.btn-text .arw{transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.btn-text:hover .arw{transform:translateX(3px)}
:where(a,button,input,textarea,select):focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:10px;
}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--surface);
  transform:translateY(-100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:0 20px 24px;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:68px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  font-size:20px;color:var(--brand-deep);cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:12px}
.drawer-nav a{
  padding:16px 14px;border-radius:var(--r-sm);font-size:18px;font-weight:600;color:var(--ink);
  border:1px solid var(--line);transition:all .2s;
}
.drawer-nav a.active{background:var(--surface-2);color:var(--brand);border-color:rgba(14,124,107,.24)}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:56px 0 64px;overflow:hidden}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(10,90,78,.9) 0%,rgba(14,124,107,.86) 48%,rgba(47,183,155,.82) 100%);
}
.page-hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
@media (max-width:1023px){.page-hero-inner{grid-template-columns:1fr;gap:28px}}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .cur{color:rgba(255,255,255,.62)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.3px;margin-bottom:18px;
}
.page-hero h1{
  font-size:46px;line-height:1.25;letter-spacing:-.5px;color:#fff;font-weight:700;
}
@media (max-width:640px){.page-hero h1{font-size:30px}}
.page-hero .lead{
  margin-top:16px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;
  font-size:13px;font-weight:600;white-space:nowrap;line-height:1.2;
}
.badge-brand{background:rgba(14,124,107,.08);color:var(--brand);border:1px solid rgba(14,124,107,.2)}
.badge-accent{background:rgba(242,160,59,.14);color:#8A5A12;border:1px solid rgba(242,160,59,.32)}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.8}
.hero-card{
  background:var(--surface);border-radius:var(--r-md);box-shadow:var(--shadow-2);
  padding:20px;border:1px solid var(--line);
}
.hero-card .cover{
  width:100%;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);
}
.hero-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.hero-card:hover .cover img{transform:scale(1.03)}
.hero-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.hero-card .card-title{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:12px}
.info-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-top:1px dashed var(--line);font-size:14px;
}
.info-row .k{color:var(--muted)}
.info-row .v{color:var(--brand-deep);font-weight:600}

/* ---------- sections ---------- */
.section{padding:96px 0}
@media (max-width:640px){.section{padding:56px 0}}
.section-tight{padding:72px 0}
.sec-head{margin-bottom:36px;max-width:760px}
.sec-head h2{
  font-size:32px;line-height:1.3;letter-spacing:-.3px;padding-left:16px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:6px;height:22px;border-radius:999px;background:var(--grad);
}
@media (max-width:640px){.sec-head h2{font-size:23px}}
.sec-head p{margin-top:14px;font-size:16px;color:var(--text)}
.eyebrow{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:1.2px;text-transform:uppercase;margin-bottom:10px}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:262px 1fr;gap:40px;align-items:start}
.faq-side-inner{position:sticky;top:92px}
.faq-side-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1px;margin-bottom:12px}
.faq-toc{display:flex;flex-direction:column;gap:6px}
.faq-toc a{
  display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:12px;
  font-size:14.5px;color:var(--text);border:1px solid transparent;transition:all .2s;
}
.faq-toc a .idx{font-variant-numeric:tabular-nums;font-size:12px;color:var(--muted);font-weight:700}
.faq-toc a:hover{background:var(--surface-2);color:var(--brand-deep)}
.faq-toc a.cur{background:var(--surface);border-color:rgba(14,124,107,.24);color:var(--brand);font-weight:600;box-shadow:var(--shadow-1)}
.faq-toc a.cur .idx{color:var(--brand)}
.side-help{
  margin-top:22px;padding:20px;border-radius:var(--r-md);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.side-help h3{font-size:15px;color:var(--brand-deep);font-weight:600;margin-bottom:8px}
.side-help p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:12px}

.faq-group{padding-bottom:44px}
.faq-group + .faq-group{border-top:1px solid var(--line);padding-top:44px}
.faq-group h2{
  font-size:22px;line-height:1.4;color:var(--brand-deep);font-weight:600;margin-bottom:8px;
}
.faq-group .group-note{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item.open{border-color:rgba(14,124,107,.3);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;position:relative;
}
.faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 4px 4px 0;background:var(--grad);opacity:0;transition:opacity .2s}
.faq-item.open .faq-q::before{opacity:1}
.faq-q .qtxt{padding-left:8px}
.faq-arrow{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--surface-2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),background .2s;
}
.faq-item.open .faq-arrow{transform:rotate(180deg);background:rgba(14,124,107,.12)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s ease,opacity .28s ease}
.faq-item.open .faq-a{opacity:1}
.faq-a p{padding:0 20px 20px 28px;font-size:15px;line-height:1.8;color:var(--text)}

@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .faq-side{position:sticky;top:68px;z-index:30;background:var(--bg);padding:10px 0 12px;border-bottom:1px solid var(--line);margin:0 -24px;padding-left:24px;padding-right:24px}
  .faq-side-inner{position:static}
  .faq-side-title{display:none}
  .faq-toc{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none}
  .faq-toc::-webkit-scrollbar{display:none}
  .faq-toc a{white-space:nowrap;border:1px solid var(--line);background:var(--surface);padding:9px 16px;border-radius:999px}
  .side-help{display:none}
}

/* ---------- support cards ---------- */
.support-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
@media (max-width:1023px){.support-grid{grid-template-columns:1fr}}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);
}
.panel h3{font-size:20px;color:var(--brand-deep);font-weight:600;margin-bottom:14px}
.contact-list{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.contact-row{
  display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-top:1px dashed var(--line);
}
.contact-row:first-of-type{border-top:none;padding-top:0}
.contact-ico{
  flex-shrink:0;width:34px;height:34px;border-radius:11px;background:var(--surface-2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.contact-row .t{font-size:14.5px;font-weight:600;color:var(--ink)}
.contact-row .d{font-size:13px;color:var(--muted);line-height:1.65;margin-top:2px}
.note-strip{
  margin-top:16px;padding:14px 16px;border-radius:14px;background:var(--surface-2);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ---------- form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field .req{color:var(--coral);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  transition:border-color .2s,box-shadow .2s;appearance:none;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A9B6B2}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(14,124,107,.12);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#D64545;box-shadow:0 0 0 4px rgba(214,69,69,.1)}
.err{font-size:13px;color:#D64545}
.err[hidden]{display:none}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:20px}
.form-hint{font-size:13px;color:var(--muted)}
.form-success{
  margin-top:16px;padding:14px 16px;border-radius:14px;background:rgba(14,124,107,.08);
  border:1px solid rgba(14,124,107,.24);color:var(--brand-deep);font-size:14px;
}
.form-success[hidden]{display:none}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad);
  padding:44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-2);
}
@media (max-width:768px){.cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px}}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;letter-spacing:-.3px}
@media (max-width:640px){.cta-band h2{font-size:22px}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:620px}
.cta-rings{position:absolute;right:-60px;top:-60px;width:280px;height:280px;opacity:.22;pointer-events:none}
.cta-rings circle{fill:none;stroke:#fff;stroke-width:1.2}
.cta-band .btn-ghost{background:#fff;border-color:#fff;color:var(--brand-deep)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.9)}

.back-line{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:28px}
.back-line .tiny{font-size:13px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:#0B1F1C;color:rgba(255,255,255,.76);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.footer-brand-name{color:#fff;font-size:16px;font-weight:700}
.footer-intro{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.3px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:13.5px;color:rgba(255,255,255,.72);transition:all .2s cubic-bezier(.2,.7,.3,1)}
.footer-links a:hover{color:#7FD8C4;transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--grad);color:#fff;border:none;cursor:pointer;font-size:18px;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-2);
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
  z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px)}

@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .hero-card:hover .cover img{transform:none}
}