/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#0F6B5C;
  --c-primary-deep:#0B4F44;
  --c-primary-soft:#2FB8A0;
  --c-accent:#F0833E;
  --c-mint:#D8F0E8;
  --c-stone:#EDF1EC;
  --c-bg:#F7F6F1;
  --c-white:#FFFFFF;
  --c-panel:#10312E;
  --c-panel-text:#E8F3EF;
  --c-title:#14211F;
  --c-body:#44524F;
  --c-muted:#7C8B87;
  --c-line:rgba(15,107,92,.12);
  --grad-brand:linear-gradient(135deg,#0F6B5C 0%,#2FB8A0 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-rest:0 8px 24px rgba(15,107,92,.08);
  --sh-hover:0 16px 36px rgba(15,107,92,.16);
  --maxw:1200px;
  --sec:88px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-family:var(--font-sans)}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,184,160,.45);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

/* ===================== 容器与网格 ===================== */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:var(--sec) 0}
.section-tight{padding:56px 0}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ===================== 板块标题 ===================== */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:16px;font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.3px}
.sec-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:20px;border-radius:2px;background:var(--c-primary)}
.sec-desc{margin:10px 0 0;font-size:15px;color:var(--c-muted);max-width:640px}
.sec-more{font-size:14px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-more::after{content:"→";transition:transform .22s ease}
.sec-more:hover::after{transform:translateX(4px)}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px rgba(15,107,92,.22)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,107,92,.3)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(15,107,92,.35)}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary);transform:translateY(-2px)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px rgba(240,131,62,.24)}
.btn-accent:hover{background:#e0742f;color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:12px 0;
  background:rgba(247,246,241,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-panel{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:var(--c-white);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-rest);
  padding:10px 16px 10px 20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{color:inherit}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 14px rgba(15,107,92,.24);
}
.brand-text{font-size:17px;font-weight:800;color:var(--c-title);letter-spacing:-.3px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 15px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--c-body);
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--c-stone);color:var(--c-primary)}
.nav-link.active{background:var(--c-mint);color:var(--c-primary)}
.nav-cta{margin-left:8px;padding:11px 22px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  border:1px solid var(--c-line);background:var(--c-white);
  border-radius:var(--r-sm);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .22s ease,opacity .22s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===================== Hero ===================== */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 96px;
  background:
    radial-gradient(1100px 420px at 85% -12%,rgba(216,240,232,.8),transparent 68%),
    var(--c-bg);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:190px;
  background:var(--grad-brand);opacity:.09;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.42fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--c-white);
  border:1px solid rgba(15,107,92,.22);
  color:var(--c-primary);font-size:13px;font-weight:700;
  margin-bottom:22px;box-shadow:0 4px 12px rgba(15,107,92,.07);
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);display:inline-block}
.hero-title{
  font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.5px;
  color:var(--c-title);margin-bottom:18px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-body);max-width:30em;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.stat-badges{display:flex;flex-wrap:wrap;gap:12px}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:var(--c-mint);border:1px solid rgba(15,107,92,.18);
}
.stat-num{font-size:22px;font-weight:800;color:var(--c-primary);line-height:1;font-variant-numeric:tabular-nums}
.stat-unit{font-size:13px;font-weight:700;color:var(--c-primary)}
.stat-label{font-size:13px;color:var(--c-body)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:0 20px 44px rgba(15,107,92,.18);
}
.hero-float{
  position:absolute;left:-22px;bottom:26px;
  background:var(--c-white);border-radius:var(--r-md);
  box-shadow:var(--sh-hover);padding:16px 22px;
  display:flex;flex-direction:column;gap:2px;min-width:158px;
}
.float-num{font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.15;font-variant-numeric:tabular-nums}
.float-num span{font-size:14px;font-weight:700;margin-left:3px}
.float-label{font-size:13px;color:var(--c-muted);line-height:1.5}

/* ===================== 三步上手 ===================== */
.steps-grid{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step-card{
  position:relative;z-index:1;
  background:var(--c-white);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--sh-rest);height:100%;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-badge{
  width:48px;height:48px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;
  display:grid;place-items:center;margin-bottom:20px;
  box-shadow:0 8px 18px rgba(15,107,92,.24);
}
.step-card h3{font-size:20px;font-weight:600;margin-bottom:10px;line-height:1.5}
.step-card p{font-size:15px;line-height:1.8;margin-bottom:18px}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-stone);color:var(--c-body);
  font-size:13px;line-height:1.6;
}
.step-link{margin-top:auto;font-size:14px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.step-link::after{content:"→";transition:transform .22s ease}
.step-link:hover::after{transform:translateX(4px)}

/* ===================== 办理范围（深色面板） ===================== */
.scope-panel{
  background:var(--c-panel);color:var(--c-panel-text);
  border-radius:var(--r-lg);padding:52px 48px;
}
.scope-panel h2{color:#fff;font-size:28px;font-weight:700;letter-spacing:-.3px;margin-bottom:12px}
.scope-panel .scope-lead{color:#A9C6BE;font-size:15px;max-width:620px;margin-bottom:32px}
.scope-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.scope-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px;border-radius:var(--r-md);
  background:rgba(232,243,239,.06);
  border:1px solid rgba(232,243,239,.14);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.scope-item:hover{background:rgba(232,243,239,.11);border-color:rgba(47,184,160,.45);transform:translateY(-3px)}
.scope-idx{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  display:grid;place-items:center;
}
.scope-body h3{color:#fff;font-size:17px;font-weight:600;margin-bottom:6px}
.scope-body p{color:#A9C6BE;font-size:14px;line-height:1.75;margin:0}

/* ===================== 案例证明 ===================== */
.case-card{
  background:var(--c-white);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-rest);height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-body{padding:28px;display:flex;flex-direction:column;flex:1}
.case-body h3{font-size:20px;font-weight:600;margin-bottom:10px}
.case-body p{font-size:15px;line-height:1.8;margin-bottom:18px}
.case-quote{
  border-left:4px solid var(--c-primary);
  background:var(--c-stone);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:12px 18px;margin-bottom:20px;
  font-size:14px;color:var(--c-body);
}
.case-stats{display:flex;flex-wrap:wrap;gap:20px;margin-top:auto;padding-top:18px;border-top:1px solid var(--c-stone)}
.case-stat{display:flex;flex-direction:column;gap:2px}
.case-stat b{font-size:20px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.case-stat span{font-size:13px;color:var(--c-muted)}

/* ===================== 最新信息 ===================== */
.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  background:var(--c-white);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-rest);height:100%;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.info-link{display:flex;flex-direction:column;height:100%;color:inherit}
.info-link:hover{color:inherit}
.info-thumb{position:relative;overflow:hidden}
.info-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.info-card:hover .info-thumb img{transform:scale(1.04)}
.info-body{padding:24px;display:flex;flex-direction:column;flex:1}
.info-tag{
  align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-mint);color:var(--c-primary);
  font-size:13px;font-weight:600;line-height:1.6;margin-bottom:14px;
}
.info-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--c-title);
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-desc{
  font-size:14px;line-height:1.75;color:var(--c-body);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-date{
  margin-top:auto;font-size:13px;color:var(--c-muted);
  font-variant-numeric:tabular-nums;
}
.empty-state{
  background:var(--c-stone);border-radius:var(--r-lg);
  padding:56px 28px;text-align:center;
}
.empty-state p{font-size:15px;color:var(--c-body);margin-bottom:20px}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-card{background:var(--c-white);border-radius:var(--r-lg);box-shadow:var(--sh-rest);padding:8px 32px}
.faq-item{border-bottom:1px solid var(--c-stone)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16px;font-weight:600;color:var(--c-title);
  padding:14px 0;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(15,107,92,.35);color:var(--c-primary);
  display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.faq-answer{font-size:15px;line-height:1.8;color:var(--c-body);padding:0 44px 22px 0}
.faq-answer p{margin:0}

/* ===================== CTA ===================== */
.cta-panel{
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:48px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;align-items:start;
}
.cta-panel h2{color:#fff;font-size:28px;font-weight:700;letter-spacing:-.3px;margin-bottom:14px}
.cta-lead{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;margin-bottom:24px;max-width:26em}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#fff;line-height:1.7}
.cta-points li::before{
  content:"✓";flex:0 0 auto;
  width:20px;height:20px;border-radius:50%;margin-top:5px;
  background:rgba(255,255,255,.2);
  display:grid;place-items:center;font-size:12px;font-weight:800;
}
.form-card{background:var(--c-white);border-radius:var(--r-md);padding:32px;box-shadow:0 18px 40px rgba(11,79,68,.2)}
.form-card h3{font-size:18px;font-weight:700;color:var(--c-title);margin-bottom:6px}
.form-hint{font-size:13px;color:var(--c-muted);margin-bottom:22px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--c-body);margin-bottom:7px}
.form-row input,
.form-row select,
.form-row textarea{
  width:100%;padding:12px 14px;
  border-radius:var(--r-sm);border:1px solid var(--c-stone);
  background:#fff;font-size:14px;color:var(--c-title);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input::placeholder,
.form-row textarea::placeholder{color:#A9B4B1}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(47,184,160,.22);
}
.form-row textarea{resize:vertical;min-height:88px}
.form-submit{width:100%;margin-top:6px}
.form-privacy{font-size:12px;color:var(--c-muted);margin:14px 0 0;line-height:1.7}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--c-panel);color:var(--c-panel-text);padding:68px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.3px}
.footer-about{font-size:14px;line-height:1.8;color:#A9C6BE;max-width:26em;margin:0}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#A9C6BE;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--c-primary-soft);transform:translateX(2px)}
.footer-info li{font-size:14px;color:#A9C6BE;line-height:1.8}
.footer-info b{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(232,243,239,.14);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#8FAEA6;
}
.footer-bottom a{color:#8FAEA6}
.footer-bottom a:hover{color:var(--c-primary-soft)}

/* ===================== 响应式 ===================== */
@media (max-width:1200px){
  .hero-title{font-size:32px}
  .hero-inner{gap:40px}
  .sec-title{font-size:24px}
  .scope-panel h2,.cta-panel h2{font-size:24px}
}
@media (max-width:991px){
  :root{--sec:64px}
  .container{padding-left:24px;padding-right:24px}
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--c-white);border-radius:var(--r-lg);
    box-shadow:var(--sh-hover);
    padding:0 12px;max-height:0;overflow:hidden;
    transition:max-height .3s ease,padding .3s ease;
  }
  body.nav-open .nav-links{max-height:380px;padding:12px}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-cta{margin-left:0;justify-content:center}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-visual{order:2}
  .hero-float{left:12px;bottom:16px}
  .steps-grid{grid-template-columns:minmax(0,1fr)}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .info-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:minmax(0,1fr);gap:32px;padding:36px}
  .scope-panel{padding:36px 28px}
  .scope-list{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:36px 0 64px}
  .hero-title{font-size:26px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1 1 auto}
  .grid-2,.grid-3,.info-grid{grid-template-columns:minmax(0,1fr)}
  .case-stats{gap:14px}
  .faq-card{padding:6px 18px}
  .faq-item summary{font-size:15px}
  .faq-answer{padding-right:0}
  .form-card{padding:24px 20px}
  .sec-head{margin-bottom:28px}
}
@media (max-width:576px){
  .grid-4{grid-template-columns:minmax(0,1fr)}
  .stat-badge{padding:8px 14px}
  .stat-num{font-size:19px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .brand-text{font-size:16px}
  .scope-panel,.cta-panel{padding:26px 20px}
}

/* roulang page: article */
:root{
  --c-primary:#0F6B5C;
  --c-primary-deep:#0B5245;
  --c-accent:#F0833E;
  --c-mint:#D8F0E8;
  --c-stone:#EDF1EC;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-panel:#10312E;
  --c-panel-text:#E8F3EF;
  --c-title:#14211F;
  --c-body:#44524F;
  --c-muted:#7C8B87;
  --c-line:#E4E9E4;
  --grad-brand:linear-gradient(135deg,#0F6B5C 0%,#2FB8A0 100%);
  --grad-soft:linear-gradient(135deg,rgba(15,107,92,.10) 0%,rgba(47,184,160,.04) 100%);
  --sh-1:0 8px 24px rgba(15,107,92,.08);
  --sh-2:0 16px 36px rgba(15,107,92,.16);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sp-section:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease,box-shadow .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{color:var(--c-title);margin:0;font-weight:700;line-height:1.3;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(47,184,160,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(247,246,241,.96) 0%,rgba(247,246,241,.82) 100%);
  backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:12px 20px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:19px;line-height:1;
  box-shadow:0 6px 14px rgba(15,107,92,.24);
}
.brand-text{font-size:18px;font-weight:800;color:var(--c-title);letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;border-radius:999px;
  font-size:14px;color:var(--c-body);font-weight:500;
}
.nav-link i{font-size:13px;color:var(--c-primary);}
.nav-link:hover,.nav-link:focus{background:var(--c-mint);color:var(--c-primary);}
.nav-link.active{background:var(--c-mint);color:var(--c-primary);font-weight:700;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);
  font-weight:600;font-size:15px;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px rgba(15,107,92,.22);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,107,92,.28);}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary-deep);transform:translateY(-2px);}
.nav-cta{padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary);}

/* ---------- article head ---------- */
.article-hero{
  position:relative;
  padding:44px 0 24px;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:150px;
  background:var(--grad-soft);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  z-index:0;
}
.article-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:20px;
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C2CCC7;}
.crumb .now{
  color:var(--c-body);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.cat-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--c-mint);color:var(--c-primary-deep);
  font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.article-title{
  font-size:40px;font-weight:800;line-height:1.25;letter-spacing:-.5px;
  max-width:920px;margin-bottom:18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;
}
.meta-row i{color:var(--c-primary);margin-right:5px;}
.meta-dot{color:#C2CCC7;}

/* ---------- article body ---------- */
.article-section{padding:36px 0 var(--sp-section);}
.article-card{
  max-width:780px;margin:0 auto;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:48px;
}
.article-body{font-size:16px;line-height:1.9;color:var(--c-body);}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  font-size:28px;font-weight:700;line-height:1.35;
  padding-left:16px;margin:40px 0 16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:20px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--c-primary-deep);}
.article-body p{margin:0 0 16px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:2px;}
.article-body a:hover{color:var(--c-accent);}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:4px solid var(--c-primary);
  background:var(--c-stone);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-body);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-lg);margin:24px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  border-radius:var(--r-sm);overflow:hidden;
}
.article-body th{background:var(--c-mint);color:var(--c-primary-deep);font-weight:700;text-align:left;padding:12px 14px;}
.article-body td{padding:12px 14px;border-top:1px solid var(--c-stone);}
.article-body hr{border:0;border-top:1px dashed var(--c-line);margin:32px 0;}
.article-empty{
  text-align:center;padding:46px 20px;
  background:var(--c-stone);border-radius:var(--r-md);
}
.article-empty i{font-size:34px;color:var(--c-primary);margin-bottom:14px;display:block;}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--c-muted);margin-bottom:20px;}
.article-actions{
  max-width:780px;margin:26px auto 0;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);}
.back-link:hover{color:var(--c-primary);}

/* ---------- related ---------- */
.related{padding:0 0 var(--sp-section);}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;
  margin-bottom:28px;
}
.section-head h2{font-size:28px;font-weight:700;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:20px;
  border-radius:2px;background:var(--c-primary);
}
.section-head p{font-size:14px;color:var(--c-muted);margin:6px 0 0;padding-left:16px;}
.text-link{font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:2px solid rgba(15,107,92,.25);padding-bottom:2px;}
.text-link:hover{color:var(--c-accent);border-bottom-color:rgba(240,131,62,.35);}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-mint);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag{
  align-self:flex-start;
  background:var(--c-mint);color:var(--c-primary-deep);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
}
.post-body h3{font-size:18px;font-weight:600;line-height:1.5;}
.post-body p{
  font-size:14px;color:var(--c-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);}
.post-foot .arrow{color:var(--c-primary);transition:transform .22s ease;}
.post-card:hover .post-foot .arrow{transform:translateX(4px);}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 var(--sp-section);}
.cta-panel{
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:48px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;
  box-shadow:0 20px 44px rgba(15,107,92,.24);
  color:#fff;
}
.cta-panel h2{color:#fff;font-size:28px;margin-bottom:14px;}
.cta-panel p{color:rgba(255,255,255,.88);margin-bottom:20px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.cta-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:#fff;}
.cta-points i{color:#FFE0C7;}
.cta-box{
  background:#fff;border-radius:var(--r-md);padding:26px;
  box-shadow:0 14px 34px rgba(6,42,36,.22);
}
.cta-box h3{font-size:18px;margin-bottom:8px;}
.cta-box p{font-size:14px;color:var(--c-muted);margin-bottom:18px;}
.cta-box .btn{width:100%;}
.cta-box .btn-ghost{margin-top:10px;border-color:var(--c-line);color:var(--c-body);}
.cta-box .btn-ghost:hover{background:var(--c-stone);color:var(--c-title);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-panel);color:var(--c-panel-text);padding:64px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand-text{font-size:18px;font-weight:800;color:#fff;}
.footer-about{font-size:14px;color:rgba(232,243,239,.72);line-height:1.85;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(232,243,239,.72);}
.footer-col ul li a:hover{color:#2FB8A0;transform:translateX(2px);display:inline-block;}
.footer-info li{font-size:14px;color:rgba(232,243,239,.72);line-height:1.8;}
.footer-info b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(232,243,239,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .article-title{font-size:34px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:992px){
  .container{padding:0 24px;}
  :root{--sp-section:64px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-lg);box-shadow:var(--sh-2);
    padding:14px;display:none;
  }
  .nav-panel{position:relative;}
  .nav-links.open{display:flex;}
  .nav-link{padding:12px 14px;border-radius:var(--r-sm);}
  .nav-cta{margin-top:8px;width:100%;border-radius:var(--r-sm);}
  .article-title{font-size:30px;}
  .article-card{padding:32px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  :root{--sp-section:48px;}
  .container{padding:0 16px;}
  .article-hero{padding:28px 0 16px;}
  .article-title{font-size:26px;letter-spacing:-.2px;}
  .crumb .now{max-width:180px;}
  .article-card{padding:22px;border-radius:var(--r-md);}
  .article-body h2{font-size:22px;margin:30px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .card-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:23px;}
  .cta-panel{padding:26px;}
  .cta-panel h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .article-actions .btn{width:100%;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .article-title{font-size:23px;}
  .post-body{padding:18px;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#0F6B5C;
  --c-primary-2:#2FB8A0;
  --c-primary-dark:#0B5347;
  --grad-brand:linear-gradient(135deg,#0F6B5C 0%,#2FB8A0 100%);
  --c-accent:#F0833E;
  --c-mint:#D8F0E8;
  --c-stone:#EDF1EC;
  --c-bg:#F7F6F1;
  --c-panel:#10312E;
  --c-panel-text:#E8F3EF;
  --c-title:#14211F;
  --c-body:#44524F;
  --c-muted:#7C8B87;
  --c-line:rgba(15,107,92,.14);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 8px 24px rgba(15,107,92,.08);
  --shadow-2:0 16px 36px rgba(15,107,92,.16);
  --focus-ring:0 0 0 3px rgba(47,184,160,.35);
  --font-cn:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-title);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color 180ms ease,background-color 180ms ease,transform 180ms ease;}
a:hover{color:var(--c-accent);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}
::selection{background:var(--c-mint);color:var(--c-primary-dark);}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1200px){
  .container{padding-left:24px;padding-right:24px;}
}
@media (max-width:576px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ============ 头部导航（卡片化面板） ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(247,246,241,.97) 0%,rgba(247,246,241,.86) 100%);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:68px;
  padding:0 20px 0 22px;
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--grad-brand);
  color:#fff;
  font-size:18px;font-weight:800;line-height:1;
  box-shadow:0 6px 14px rgba(15,107,92,.22);
}
.brand-text{font-size:17px;font-weight:800;color:var(--c-title);letter-spacing:-.2px;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;
  border-radius:10px;
  font-size:14px;font-weight:500;
  color:var(--c-body);
}
.nav-link:hover{background:var(--c-mint);color:var(--c-primary);}
.nav-link.active{background:var(--c-mint);color:var(--c-primary);font-weight:700;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  cursor:pointer;transition:background-color 180ms ease;
}
.nav-toggle:hover{background:var(--c-mint);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform 200ms ease,opacity 200ms ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:.72rem 1.35rem;
  font-family:inherit;
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  cursor:pointer;
  text-decoration:none;
  transition:transform 220ms ease,box-shadow 220ms ease,background-color 220ms ease,color 220ms ease,border-color 220ms ease;
}
.btn-primary{
  background-color:var(--c-primary);
  background-image:var(--grad-brand);
  color:#fff;
  border-color:transparent;
  box-shadow:0 8px 18px rgba(15,107,92,.18);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 26px rgba(15,107,92,.26);
  filter:brightness(1.06);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,107,92,.2);}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border:1px solid var(--c-primary);
}
.btn-ghost:hover{background:var(--c-mint);color:var(--c-primary);transform:translateY(-2px);}
.btn-on-dark{background:#fff;color:var(--c-primary);border-color:transparent;box-shadow:0 10px 22px rgba(6,42,36,.20);}
.btn-on-dark:hover{background:#fff;color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 16px 30px rgba(6,42,36,.28);}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.62);}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn-lg{padding:.9rem 1.7rem;font-size:16px;}
.nav-cta{margin-left:10px;}

/* ============ 首屏 ============ */
.page-hero{position:relative;overflow:hidden;padding:52px 0 76px;}
.page-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:180px;
  background:var(--grad-brand);
  opacity:.06;
  z-index:0;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px;}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{opacity:.55;}
.crumbs .now{color:var(--c-primary);font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1fr .78fr;gap:56px;align-items:center;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  margin-bottom:16px;
  background:var(--c-mint);
  color:var(--c-primary-dark);
  border-radius:999px;
  font-size:13px;font-weight:700;
}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;font-style:normal;}
.hero-title{font-size:40px;font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:18px;}
.hero-title .hl{color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-body);max-width:32em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.stat-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.stat-badge{
  min-width:170px;
  padding:12px 20px;
  background:#fff;
  border:1px solid rgba(15,107,92,.18);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:transform 220ms ease,box-shadow 220ms ease;
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat-num{
  display:block;
  font-size:24px;font-weight:800;line-height:1.2;letter-spacing:-.5px;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.stat-num i{font-style:normal;font-size:13px;font-weight:600;margin-left:3px;}
.stat-label{display:block;font-size:13px;line-height:1.5;color:var(--c-muted);margin-top:2px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);
  background:var(--c-mint);
}
.hero-float{
  position:absolute;left:18px;bottom:18px;
  display:flex;align-items:center;gap:12px;
  padding:12px 18px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-2);
}
.hero-float strong{font-size:26px;font-weight:800;line-height:1;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.hero-float span{font-size:12.5px;line-height:1.45;color:var(--c-muted);}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-head{max-width:780px;margin-bottom:48px;}
.section-head h2{font-size:28px;font-weight:700;line-height:1.45;}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-body);}
.h2-bar{position:relative;padding-left:18px;}
.h2-bar::before{
  content:"";
  position:absolute;left:0;top:.42em;
  width:4px;height:20px;border-radius:2px;
  background:var(--grad-brand);
}

/* ============ 图文交替流 ============ */
.flow-list{display:flex;flex-direction:column;gap:76px;}
.flow-block{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
.flow-block.reverse .flow-media{order:2;}
.flow-media{
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--c-mint);
  box-shadow:var(--shadow-1);
}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 420ms ease;}
.flow-block:hover .flow-media img{transform:scale(1.035);}
.step-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px 6px 6px;
  margin-bottom:16px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:13px;font-weight:700;
  color:var(--c-primary);
  box-shadow:var(--shadow-1);
}
.step-num{
  width:24px;height:24px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--grad-brand);
  color:#fff;font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.flow-body h2{font-size:26px;font-weight:700;line-height:1.42;margin-bottom:16px;}
.flow-body p{font-size:16px;color:var(--c-body);}
.point-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.75;color:var(--c-body);}
.point-list .tick{
  flex:0 0 20px;
  width:20px;height:20px;margin-top:4px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--c-mint);
  color:var(--c-primary);
  font-size:11px;font-weight:800;line-height:1;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-card{
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:8px 0;
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-stone);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  position:relative;
  display:block;
  min-height:64px;
  padding:22px 56px 22px 28px;
  font-size:16px;font-weight:700;
  color:var(--c-title);
  line-height:1.6;
  cursor:pointer;
  list-style:none;
  transition:color 180ms ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;right:26px;top:50%;
  transform:translateY(-50%);
  font-size:22px;font-weight:400;
  color:var(--c-primary);
  line-height:1;
  transition:transform 200ms ease,color 200ms ease;
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item .faq-a{padding:0 28px 24px 28px;}
.faq-item .faq-a p{font-size:15px;line-height:1.8;color:var(--c-body);}

/* ============ 尾部 CTA ============ */
.cta-band{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:40px;
  align-items:center;
  padding:48px;
  background-color:var(--c-primary);
  background-image:var(--grad-brand);
  border-radius:var(--r-lg);
  box-shadow:0 20px 44px rgba(15,107,92,.24);
}
.cta-band h2{font-size:28px;font-weight:800;line-height:1.4;color:#fff;letter-spacing:-.3px;}
.cta-band .cta-desc{margin-top:14px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.9);}
.cta-points{display:flex;flex-direction:column;gap:8px;margin-top:20px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.7;color:#fff;}
.cta-points li::before{
  content:"✓";
  flex:0 0 18px;width:18px;height:18px;margin-top:4px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(255,255,255,.22);
  font-size:11px;font-weight:800;line-height:1;
}
.cta-action{display:flex;flex-direction:column;gap:12px;}
.cta-note{font-size:13px;color:rgba(255,255,255,.78);text-align:center;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  padding-top:64px;
  background:var(--c-panel);
  color:var(--c-panel-text);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:0 6px 14px rgba(0,0,0,.28);}
.footer-brand-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.2px;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(232,243,239,.72);max-width:30em;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul li{font-size:14px;line-height:1.7;color:rgba(232,243,239,.72);}
.footer-col ul a{display:inline-block;font-size:14px;color:rgba(232,243,239,.72);}
.footer-col ul a:hover{color:#fff;transform:translateX(-2px);}
.footer-info b{font-weight:600;color:rgba(232,243,239,.95);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(232,243,239,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1400px){
  .hero-title{font-size:40px;}
}
@media (max-width:1200px){
  .hero-grid{gap:40px;}
  .flow-block{gap:40px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;
    left:0;right:0;
    top:calc(100% + 12px);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:14px;
    background:#fff;
    border-radius:var(--r-lg);
    box-shadow:var(--shadow-2);
  }
  .nav-links.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:15px;}
  .nav-cta{margin-left:0;margin-top:6px;justify-content:center;padding:.85rem 1.35rem;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{order:-1;}
  .hero-title{font-size:32px;}
  .section-head h2{font-size:24px;}
  .flow-block{grid-template-columns:1fr;gap:26px;}
  .flow-block.reverse .flow-media{order:0;}
  .flow-body h2{font-size:23px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media (max-width:767.98px){
  .hero-float{left:12px;bottom:12px;padding:10px 14px;}
  .hero-float strong{font-size:22px;}
  .flow-list{gap:56px;}
  .stat-badge{min-width:calc(50% - 7px);}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .page-hero{padding:36px 0 56px;}
  .hero-title{font-size:26px;letter-spacing:-.3px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .stat-row{gap:10px;}
  .stat-badge{min-width:100%;}
  .stat-num{font-size:22px;}
  .section-head h2{font-size:21px;}
  .flow-body h2{font-size:21px;}
  .faq-item summary{padding:18px 48px 18px 20px;font-size:15px;}
  .faq-item .faq-a{padding:0 20px 20px 20px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-md);}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0F6B5C;
  --c-primary-2:#2FB8A0;
  --grad-brand:linear-gradient(135deg,#0F6B5C 0%,#2FB8A0 100%);
  --c-accent:#F0833E;
  --c-mint:#D8F0E8;
  --c-stone:#EDF1EC;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-panel:#10312E;
  --c-panel-text:#E8F3EF;
  --c-title:#14211F;
  --c-body:#44524F;
  --c-muted:#7C8B87;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(15,107,92,.08);
  --sh-2:0 16px 36px rgba(15,107,92,.16);
  --sec:88px;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-body);
  --bs-primary:#0F6B5C;
  --bs-link-color:var(--c-primary);
  --bs-link-hover-color:var(--c-accent);
  --bs-border-radius:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{color:var(--c-title);margin:0}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(47,184,160,.35);outline-offset:2px;border-radius:6px}

/* 通用组件 */
.btn{border-radius:var(--r-sm);font-weight:600;font-size:15px;padding:12px 26px;border:0;line-height:1.4;transition:all .22s ease;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 20px rgba(15,107,92,.22)}
.btn-primary:hover,.btn-primary:focus,.btn-primary:active{background:linear-gradient(135deg,#0B5449 0%,#26a08b 100%);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,107,92,.3)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid rgba(15,107,92,.35)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-mint);color:var(--c-primary);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--c-mint);color:var(--c-primary);font-size:13px;font-weight:600;border-radius:999px;padding:4px 14px;line-height:1.6}
.tag-outline{background:#fff;border:1px solid rgba(15,107,92,.25);color:var(--c-primary)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--c-mint);color:var(--c-primary);font-size:13px;font-weight:700;letter-spacing:.4px;border-radius:999px;padding:6px 16px;margin-bottom:18px}
.section{padding:var(--sec) 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{font-size:28px;font-weight:700;line-height:1.35;position:relative;padding-left:16px;margin-bottom:14px}
.section-title::before{content:"";position:absolute;left:0;top:.25em;width:4px;height:20px;border-radius:2px;background:var(--grad-brand)}
.section-sub{font-size:15px;color:var(--c-muted);margin:0}
.card{background:var(--c-card);border:0;border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;background:rgba(247,246,241,.92);backdrop-filter:blur(10px)}
.nav-panel{position:relative;display:flex;align-items:center;gap:20px;background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:12px 26px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--grad-brand);color:#fff;font-weight:800;font-size:19px;display:inline-flex;align-items:center;justify-content:center;line-height:1}
.brand-text{font-size:18px;font-weight:800;color:var(--c-title);letter-spacing:-.2px}
.brand:hover .brand-text{color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{font-size:14px;font-weight:600;color:var(--c-body);padding:9px 14px;border-radius:12px;transition:all .18s ease;white-space:nowrap}
.nav-link:hover{background:var(--c-mint);color:var(--c-primary)}
.nav-link.active{background:var(--c-mint);color:var(--c-primary)}
.nav-cta{margin-left:10px;padding:10px 22px;font-size:14px}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--c-stone);background:#fff;border-radius:12px;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px}

/* Hero */
.hero{position:relative;padding:56px 0 92px;overflow:hidden}
.hero-bg{position:absolute;left:0;right:0;bottom:0;height:190px;background:var(--grad-brand);opacity:.1}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{font-size:40px;font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--c-body);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.stat-badges{display:flex;flex-wrap:wrap;gap:12px}
.stat-badge{background:#fff;border:1px solid rgba(15,107,92,.18);border-radius:999px;padding:8px 18px;display:inline-flex;align-items:baseline;gap:8px;box-shadow:var(--sh-1)}
.stat-badge b{font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-badge b i{font-style:normal;font-size:13px;font-weight:600;margin-left:2px}
.stat-badge span{font-size:13px;color:var(--c-muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:0 18px 40px rgba(15,107,92,.16)}
.float-card{position:absolute;left:-22px;bottom:26px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2);padding:14px 18px;display:flex;align-items:center;gap:12px;max-width:250px}
.float-card i{width:38px;height:38px;border-radius:12px;background:var(--c-mint);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.float-card strong{display:block;font-size:14px;color:var(--c-title);line-height:1.5}
.float-card em{font-style:normal;font-size:12px;color:var(--c-muted)}

/* 时间线 */
.timeline{position:relative;max-width:980px;margin:0 auto;list-style:none;padding:0}
.timeline::before{content:"";position:absolute;left:44px;top:14px;bottom:14px;width:2px;background:linear-gradient(180deg,var(--c-primary-2),var(--c-primary));opacity:.32;border-radius:2px}
.tl-item{position:relative;padding-left:130px;margin-bottom:22px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{position:absolute;left:17px;top:8px;width:56px;height:56px;border-radius:50%;background:var(--grad-brand);color:#fff;font-size:16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;box-shadow:0 8px 18px rgba(15,107,92,.24);border:4px solid var(--c-bg)}
.tl-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:26px 30px;transition:transform .22s ease,box-shadow .22s ease}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.tl-head h3{font-size:20px;font-weight:600}
.tl-card p{color:var(--c-body);font-size:15px;margin:0}

/* 支持范围 */
.scope-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.scope-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.scope-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
.scope-item{background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-1);padding:20px 22px;transition:transform .22s ease,box-shadow .22s ease}
.scope-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scope-item h4{font-size:16px;font-weight:600;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.scope-item h4 i{color:var(--c-primary-2);font-size:14px}
.scope-item p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.7}

/* 保障卡 */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guard-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px 28px;transition:transform .22s ease,box-shadow .22s ease}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.guard-icon{width:48px;height:48px;border-radius:14px;background:var(--c-mint);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px}
.guard-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.guard-card p{font-size:14px;color:var(--c-body);margin:0}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:10px 32px;overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-stone)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;font-size:16px;font-weight:600;color:var(--c-title);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .fi{width:26px;height:26px;flex-shrink:0;border-radius:50%;background:var(--c-mint);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:transform .2s ease}
.faq-item[open] summary .fi{transform:rotate(180deg)}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--c-body);max-width:96%}

/* CTA */
.cta-panel{background:var(--c-panel);border-radius:var(--r-lg);padding:48px;color:var(--c-panel-text);display:grid;grid-template-columns:6fr 5fr;gap:44px;align-items:center;box-shadow:0 20px 44px rgba(16,49,46,.24)}
.cta-panel h2{color:#fff;font-size:26px;font-weight:700;line-height:1.4;margin-bottom:14px;padding:0}
.cta-panel h2::before{display:none}
.cta-panel p{color:rgba(232,243,239,.82);font-size:15px;margin-bottom:22px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(232,243,239,.9);margin-bottom:10px}
.cta-points li i{color:var(--c-primary-2);margin-top:4px;font-size:13px}
.cta-side{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:28px}
.cta-side h3{color:#fff;font-size:17px;font-weight:600;margin-bottom:8px}
.cta-side p{font-size:13px;color:rgba(232,243,239,.72);margin-bottom:20px}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}
.btn-light{background:#fff;color:var(--c-primary);border:1px solid rgba(255,255,255,.6)}
.btn-light:hover{background:var(--c-mint);color:var(--c-primary);transform:translateY(-2px)}
.back-row{margin-top:26px;text-align:center}
.back-link{font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:2px solid rgba(15,107,92,.25);padding-bottom:2px}
.back-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}

/* 页脚 */
.site-footer{background:var(--c-panel);color:var(--c-panel-text);padding:64px 0 0;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-text{font-size:18px;font-weight:800;color:#fff}
.footer-about{font-size:14px;line-height:1.8;color:rgba(232,243,239,.72);margin:0}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(232,243,239,.72);transition:all .2s ease;display:inline-block}
.footer-col ul li a:hover{color:var(--c-primary-2);transform:translateX(-2px)}
.footer-info li{font-size:14px;color:rgba(232,243,239,.72);line-height:1.8}
.footer-info b{color:rgba(232,243,239,.95);font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(232,243,239,.6)}

@media (max-width:1200px){
  .hero h1{font-size:34px}
  .cta-panel{padding:40px 34px;gap:32px}
}
@media (max-width:992px){
  :root{--sec:64px}
  .container{padding-left:24px;padding-right:24px}
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:calc(100% + 12px);left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:16px;display:none}
  .nav-links.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-cta{margin:8px 0 0;justify-content:center}
  .hero{padding:36px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:30px}
  .hero-media{max-width:620px}
  .float-card{left:14px;bottom:14px}
  .scope-grid{grid-template-columns:1fr;gap:32px}
  .guard-grid{grid-template-columns:1fr 1fr}
  .cta-panel{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .section-title{font-size:24px}
  .timeline::before{display:none}
  .tl-item{padding-left:0;margin-bottom:20px}
  .tl-dot{position:static;width:46px;height:46px;font-size:14px;margin-bottom:12px;border-width:0;box-shadow:0 6px 14px rgba(15,107,92,.2)}
  .tl-card{padding:22px 22px}
  .scope-list{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:1fr}
  .faq-card{padding:6px 20px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:576px){
  :root{--sec:48px}
  .container{padding-left:16px;padding-right:16px}
  .nav-panel{padding:10px 16px}
  .hero h1{font-size:26px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-media img{aspect-ratio:16/10}
  .float-card{position:static;margin-top:14px;max-width:none}
  .stat-badge{width:100%}
  .cta-panel{padding:28px 20px}
  .cta-btns .btn{width:100%;justify-content:center}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F6B5C;
  --c-primary-2:#2FB8A0;
  --c-accent:#F0833E;
  --c-mint:#D8F0E8;
  --c-stone:#EDF1EC;
  --c-bg:#F7F6F1;
  --c-panel:#10312E;
  --c-panel-text:#E8F3EF;
  --c-title:#14211F;
  --c-body:#44524F;
  --c-muted:#7C8B87;
  --grad-brand:linear-gradient(135deg,#0F6B5C 0%,#2FB8A0 100%);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(15,107,92,.08);
  --shadow-hover:0 16px 36px rgba(15,107,92,.16);
  --section-space:88px;
  --font-stack:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background .18s ease,transform .18s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{color:var(--c-title);margin:0 0 16px;font-weight:700;letter-spacing:-.3px;}
h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.5px;}
h2{font-size:28px;line-height:1.35;font-weight:700;}
h3{font-size:20px;font-weight:600;letter-spacing:-.2px;}
h4{font-size:16px;font-weight:700;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(47,184,160,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--section-space) 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;width:4px;height:20px;border-radius:2px;background:var(--c-primary);}
.section-head p{margin:0;color:var(--c-body);font-size:15px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:14px 0;
  background:rgba(247,246,241,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:#fff;border:1px solid rgba(15,107,92,.06);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:12px 32px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-title);font-weight:800;letter-spacing:-.4px;}
.brand:hover{color:var(--c-title);}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 36px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;line-height:1;
}
.brand-text{font-size:18px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;color:var(--c-body);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--c-mint);color:var(--c-primary);}
.nav-link.active{background:var(--c-mint);color:var(--c-primary);}
.nav-cta{margin-left:10px;}
.nav-toggle{
  display:none;flex-direction:column;gap:5px;
  background:transparent;border:none;padding:8px;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .2s ease,opacity .2s ease;}

/* ---------- buttons / pills ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;border:none;box-shadow:0 8px 20px rgba(15,107,92,.18);}
.btn-primary:hover{background:var(--grad-brand);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,107,92,.28);}
.btn-outline{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-outline:hover{background:var(--c-mint);color:var(--c-primary);border-color:var(--c-primary);}
.btn-block{width:100%;}
.text-link{color:var(--c-primary);font-weight:600;font-size:14px;text-decoration:underline;text-underline-offset:3px;}
.text-link:hover{color:var(--c-accent);}
.text-link i{margin-left:6px;transition:transform .2s ease;display:inline-block;}
.text-link:hover i{transform:translateX(4px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:#fff;
  border:1px solid rgba(15,107,92,.18);color:var(--c-primary);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge-pill{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 16px;border-radius:999px;
  background:var(--c-mint);border:1px solid rgba(15,107,92,.18);
  font-size:13px;color:var(--c-body);
}
.badge-pill b{font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.badge-pill span{color:var(--c-muted);}

/* ---------- hero ---------- */
.hero{position:relative;padding:56px 0 88px;overflow:hidden;}
.hero::after{
  content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:100vw;height:180px;background:var(--grad-brand);opacity:.07;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.breadcrumb-bar{font-size:13px;color:var(--c-muted);margin-bottom:18px;}
.breadcrumb-bar a{color:var(--c-muted);}
.breadcrumb-bar a:hover{color:var(--c-primary);}
.breadcrumb-bar span.sep{margin:0 8px;color:#C4CDC9;}
.hero h1{margin-bottom:18px;max-width:620px;}
.hero-sub{font-size:17px;color:var(--c-body);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:0 18px 40px rgba(15,107,92,.16);
  aspect-ratio:4/3;background:var(--c-mint);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border-radius:var(--radius-md);
  padding:14px 18px;box-shadow:0 16px 36px rgba(15,107,92,.18);
  display:flex;align-items:center;gap:12px;
}
.hero-float i{color:var(--c-accent);font-size:18px;}
.hero-float b{display:block;font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-float small{font-size:12px;color:var(--c-muted);}

/* ---------- filter pills ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 32px;}
.filter-pill{
  padding:9px 18px;border-radius:999px;border:1px solid var(--c-stone);
  background:#fff;font-size:14px;color:var(--c-body);cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.filter-pill:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.filter-pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.filter-pill.is-active:hover{color:#fff;}

/* ---------- metric matrix ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.metric-card{
  background:#fff;border:1px solid rgba(15,107,92,.06);
  border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.metric-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.metric-icon{
  width:40px;height:40px;border-radius:12px;background:var(--c-mint);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.metric-tag{font-size:12px;color:var(--c-muted);letter-spacing:.4px;}
.metric-value{
  display:flex;align-items:baseline;gap:5px;
  font-size:34px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:10px;
}
.metric-value .unit{font-size:15px;font-weight:600;color:var(--c-muted);}
.metric-label{font-size:15px;font-weight:600;color:var(--c-title);margin-bottom:6px;}
.metric-note{font-size:13px;color:var(--c-muted);line-height:1.65;margin:0;}
.metric-card.is-accent .metric-value{color:var(--c-accent);}
.metric-card.is-accent .metric-icon{background:#FDEADC;color:var(--c-accent);}

/* ---------- compare ---------- */
.compare-card{
  background:#fff;border:1px solid rgba(15,107,92,.06);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1fr 1px 1fr;overflow:hidden;
}
.compare-col{padding:36px;}
.compare-divider{background:var(--c-stone);}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.compare-col h3 i{font-size:16px;}
.compare-col .lead{font-size:14px;color:var(--c-muted);margin-bottom:20px;}
.compare-list li{
  display:flex;gap:10px;padding:11px 0;font-size:15px;
  border-bottom:1px dashed var(--c-stone);color:var(--c-body);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list li i{margin-top:6px;font-size:13px;}
.compare-col.good h3 i,.compare-col.good .compare-list li i{color:var(--c-primary);}
.compare-col.warn h3 i,.compare-col.warn .compare-list li i{color:var(--c-accent);}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.check-visual{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);aspect-ratio:4/3;margin-bottom:24px;background:var(--c-mint);}
.check-visual img{width:100%;height:100%;object-fit:cover;}
.check-panel{
  background:#fff;border:1px solid rgba(15,107,92,.06);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:32px;
}
.check-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--c-stone);font-size:15px;color:var(--c-body);}
.check-list li:last-child{border-bottom:none;}
.check-list li i{margin-top:6px;color:var(--c-primary);font-size:14px;}
.check-list li b{color:var(--c-title);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{
  max-width:860px;margin:0 auto;background:#fff;
  border:1px solid rgba(15,107,92,.06);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-wrap .accordion-item{border:none;border-bottom:1px solid var(--c-stone);background:transparent;}
.faq-wrap .accordion-item:last-child{border-bottom:none;}
.faq-wrap .accordion-button{
  background:transparent;color:var(--c-title);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 28px;min-height:64px;box-shadow:none;
  display:flex;align-items:center;gap:16px;
}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:3px solid rgba(47,184,160,.35);outline-offset:-3px;}
.faq-wrap .accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(216,240,232,.35);}
.faq-wrap .accordion-button::after{display:none;}
.faq-wrap .accordion-body{padding:0 28px 24px;font-size:15px;line-height:1.8;color:var(--c-body);}
.faq-icon{
  margin-left:auto;flex:0 0 24px;width:24px;height:24px;position:relative;border-radius:50%;
  background:var(--c-mint);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);
  border-radius:2px;transition:transform .2s ease;
}
.faq-icon::before{width:11px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:11px;transform:translate(-50%,-50%);}
.accordion-button:not(.collapsed) .faq-icon{background:var(--c-primary);}
.accordion-button:not(.collapsed) .faq-icon::before{background:#fff;}
.accordion-button:not(.collapsed) .faq-icon::after{background:#fff;transform:translate(-50%,-50%) rotate(90deg) scaleY(0);}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--grad-brand);border-radius:var(--radius-lg);
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;
  box-shadow:0 20px 44px rgba(15,107,92,.24);
}
.cta-panel h2{color:#fff;margin-bottom:14px;}
.cta-panel .cta-sub{color:rgba(255,255,255,.9);font-size:15px;margin-bottom:22px;}
.cta-list li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.94);font-size:15px;padding:6px 0;}
.cta-list li i{margin-top:6px;font-size:13px;color:#D8F0E8;}
.form-card{background:#fff;border-radius:var(--radius-md);padding:28px;box-shadow:0 12px 30px rgba(9,60,52,.2);}
.form-card h3{margin-bottom:18px;font-size:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-title);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--c-stone);background:#fff;
  font-size:14px;color:var(--c-title);font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:84px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,184,160,.28);
}
.form-note{font-size:12px;color:var(--c-muted);margin:12px 0 0;line-height:1.6;}
.form-msg{
  display:none;margin:14px 0 0;padding:10px 14px;border-radius:var(--radius-sm);
  background:var(--c-mint);color:var(--c-primary);font-size:13px;
}
.form-msg.is-visible{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-panel);color:var(--c-panel-text);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand-text{font-size:18px;font-weight:800;color:#fff;}
.footer-about{color:rgba(232,243,239,.72);font-size:14px;line-height:1.8;margin:16px 0 0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(232,243,239,.72);font-size:14px;display:inline-block;}
.footer-col a:hover{color:var(--c-primary-2);transform:translateX(2px);}
.footer-info li{font-size:14px;color:rgba(232,243,239,.74);margin-bottom:10px;}
.footer-info b{color:#fff;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,243,239,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .container{padding:0 28px;}
  .metric-grid{gap:20px;}
}
@media (max-width:992px){
  :root{--section-space:64px;}
  .container{padding:0 24px;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  .nav-panel{flex-wrap:wrap;padding:12px 20px;border-radius:20px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-links{
    display:none;flex-direction:column;align-items:stretch;width:100%;
    gap:4px;padding-top:12px;margin-top:10px;border-top:1px solid var(--c-stone);
  }
  .nav-panel.nav-open .nav-links{display:flex;}
  .nav-link{padding:12px 14px;font-size:15px;}
  .nav-cta{margin:10px 0 0;width:100%;}
  .hero{padding:36px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero h1,.hero-sub{max-width:none;}
  .hero-float{left:12px;bottom:12px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .check-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--section-space:48px;}
  .container{padding:0 20px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .compare-card{grid-template-columns:1fr;}
  .compare-divider{height:1px;width:100%;}
  .compare-col{padding:28px;}
  .metric-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .form-card{padding:22px;}
  .cta-panel{padding:28px;}
  .faq-wrap .accordion-button{padding:18px 20px;font-size:16px;}
  .faq-wrap .accordion-body{padding:0 20px 20px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  h1{font-size:26px;}
  .nav-panel{padding:10px 14px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .badge-row{gap:10px;}
  .badge-pill{padding:8px 14px;}
  .badge-pill b{font-size:18px;}
  .metric-card{padding:22px;}
  .hero-float{position:static;margin-top:14px;left:auto;bottom:auto;}
}