/* roulang page: index */
:root{
  --brand:#10E0A6;
  --brand-dark:#0BC48F;
  --brand-press:#09A87B;
  --brand-deep:#0A6B52;
  --brand-tint:#E6FBF4;
  --lemon:#FFD84D;
  --danger:#FF5A47;
  --ink:#0C1412;
  --ink-2:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --shadow-1:0 2px 8px rgba(12,20,18,.06);
  --shadow-2:0 12px 28px rgba(12,20,18,.12);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 40px}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,20,18,.92);
  border-bottom:1px solid rgba(16,224,166,.18);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(0,0,0,.36);background:rgba(12,20,18,.97)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#fff}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),#0A9F79);
  display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 6px 16px rgba(16,224,166,.28);
}
.logo-mark svg{width:22px;height:22px;stroke:#06231B;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.3px;line-height:1.2;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-link{
  position:relative;padding:9px 13px;border-radius:9px;
  font-size:15px;color:rgba(255,255,255,.76);
  transition:color var(--t),background var(--t);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--brand);background:rgba(16,224,166,.08)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.version-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lemon);color:#20180A;font-size:12px;font-weight:800;
  padding:5px 11px;border-radius:999px;letter-spacing:.3px;font-variant-numeric:tabular-nums;
}
.version-pill i{font-size:10px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:11px;
  border:1px solid rgba(16,224,166,.3);color:#fff;
  align-items:center;justify-content:center;font-size:17px;
  transition:background var(--t),border-color var(--t);
}
.menu-toggle:hover{background:rgba(16,224,166,.12);border-color:var(--brand)}
.nav-cta{display:none}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:transform var(--t),background var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#06231B;box-shadow:0 6px 18px rgba(16,224,166,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(16,224,166,.34)}
.btn-primary:active{background:var(--brand-press);transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{background:rgba(16,224,166,.14);border-color:var(--brand);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);background:var(--brand-tint)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:78px 0 92px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.30;
}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 78% 12%,rgba(16,224,166,.22),transparent 68%),
    linear-gradient(105deg,rgba(12,20,18,.96) 12%,rgba(12,20,18,.80) 52%,rgba(12,20,18,.92) 100%);
}
.hero-stripes{
  position:absolute;right:-60px;top:0;bottom:0;width:420px;opacity:.16;
  background:repeating-linear-gradient(45deg,var(--brand) 0 2px,transparent 2px 22px);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:800;letter-spacing:1.4px;color:var(--brand);
}
.eyebrow::before{content:"";width:4px;height:14px;background:var(--brand);border-radius:2px}
.hero .eyebrow{margin-bottom:18px}
.hero-title{
  font-size:52px;line-height:1.16;font-weight:800;letter-spacing:-.6px;color:#fff;
  margin-bottom:20px;
}
.hero-title span{color:var(--brand)}
.hero-sub{max-width:530px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.74);margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.platform-chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(16,224,166,.3);background:rgba(16,224,166,.07);
  font-size:13px;color:rgba(255,255,255,.84);font-weight:600;
}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(16,224,166,.16)}

.dl-card{
  position:relative;
  background:rgba(22,33,30,.94);
  border:1px solid rgba(16,224,166,.26);
  border-radius:20px;
  padding:26px;
  box-shadow:0 22px 48px rgba(0,0,0,.42);
}
.dl-card::before{
  content:"";position:absolute;left:26px;right:26px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
}
.dl-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.dl-head h3{font-size:18px;color:#fff;font-weight:800}
.dl-head .version-pill{font-size:11.5px;padding:4px 10px}
.dl-note{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.dl-row{
  display:flex;align-items:center;gap:14px;
  padding:13px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  transition:border-color var(--t),background var(--t),transform var(--t);
  margin-bottom:10px;
}
.dl-row:hover{border-color:rgba(16,224,166,.55);background:rgba(16,224,166,.08);transform:translateX(2px)}
.dl-ico{
  width:40px;height:40px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;
  background:rgba(16,224,166,.14);color:var(--brand);
}
.dl-row-txt{flex:1;min-width:0}
.dl-row-txt strong{display:block;font-size:14.5px;color:#fff;font-weight:700}
.dl-row-txt span{display:block;font-size:12.5px;color:rgba(255,255,255,.5)}
.dl-row .fa-chevron-right{color:rgba(255,255,255,.35);font-size:12px}
.dl-meta{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.12);
  font-size:12.5px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;
}
.dl-meta em{font-style:normal;color:var(--lemon);font-weight:700}

/* ============ SECTIONS ============ */
.section{padding:86px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:740px;margin-bottom:44px}
.section-title{font-size:34px;line-height:1.32;font-weight:800;color:var(--ink);margin-top:12px;letter-spacing:-.3px}
.section-desc{font-size:16px;color:var(--muted);margin-top:14px;line-height:1.8}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--brand-deep);
  border-bottom:1px solid transparent;transition:border-color var(--t),color var(--t),gap var(--t);
}
.link-more:hover{color:var(--brand-press);border-color:var(--brand);gap:12px}

/* 三步上手 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  position:relative;overflow:hidden;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(16,224,166,.6)}
.step-num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-1px;
  color:transparent;-webkit-text-stroke:1.6px var(--brand);
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h3{font-size:19px;color:var(--ink);font-weight:800;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.78}
.step-card .step-tag{
  display:inline-flex;margin-top:16px;padding:4px 10px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand-deep);font-size:12.5px;font-weight:700;
}

/* 数据条 */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;margin-bottom:56px;
}
.stat{background:#fff;padding:26px 20px;text-align:center}
.stat-num{
  font-size:34px;font-weight:800;color:var(--brand-press);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-num small{font-size:16px;font-weight:700;margin-left:2px;color:var(--brand-deep)}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}

/* 证明卡 */
.proof-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.proof-row + .proof-row{margin-top:56px}
.proof-row.reverse .proof-media{order:2}
.proof-media{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;
  background:var(--brand-tint);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.proof-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.proof-media:hover img{transform:scale(1.04)}
.proof-body .badge{margin-bottom:14px}
.proof-body h3{font-size:24px;line-height:1.4;color:var(--ink);font-weight:800;margin-bottom:14px}
.proof-body p{font-size:15.5px;color:var(--text);line-height:1.85;margin-bottom:10px}
.proof-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.2px;
}
.badge-yellow{background:rgba(255,216,77,.28);color:#6B5308}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:600}

/* 频道入口 */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.topic-card{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.topic-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-tint);color:var(--brand-press);font-size:19px;
  transition:background var(--t),color var(--t);
}
.topic-card:hover .topic-ico{background:var(--brand);color:#06231B}
.topic-card h3{font-size:17.5px;color:var(--ink);font-weight:800;line-height:1.45}
.topic-card p{font-size:14px;color:var(--muted);line-height:1.75}
.topic-card .tc-go{
  margin-top:auto;font-size:13.5px;font-weight:700;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:7px;
}
.topic-card:hover .tc-go{gap:11px}

/* CMS 列表 */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cms-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(16,224,166,.55)}
.cms-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand-tint),#D3F5E9)}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.cms-card:hover .cms-thumb img{transform:scale(1.05)}
.cms-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.cms-title{
  font-size:18px;line-height:1.52;color:var(--ink);font-weight:800;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.cms-card:hover .cms-title{color:var(--brand-press)}
.cms-desc{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:13px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.cms-meta .arrow{color:var(--brand-press);font-weight:700;transition:transform var(--t)}
.cms-card:hover .cms-meta .arrow{transform:translateX(4px)}
.cms-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:58px 24px;text-align:center;
}
.cms-empty .empty-ico{
  width:60px;height:60px;margin:0 auto 18px;border-radius:16px;
  display:grid;place-items:center;background:var(--brand-tint);color:var(--brand-press);font-size:24px;
}
.cms-empty p{font-size:15px;color:var(--muted);margin-bottom:20px}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:start}
.faq-side p{font-size:15px;color:var(--muted);margin:16px 0 24px;line-height:1.85}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.open{border-color:rgba(16,224,166,.65);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-q:hover{color:var(--brand-deep)}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:13px;
  background:var(--brand-tint);color:var(--brand-deep);
  transition:transform .24s ease-out,background var(--t),color var(--t);
}
.faq-item.open .faq-sign{background:var(--brand);color:#06231B;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a-inner{padding:0 20px 18px;font-size:14.5px;color:var(--muted);line-height:1.82}

/* CTA */
.cta-section{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:84px 0;text-align:center}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 50% 0%,rgba(16,224,166,.26),transparent 70%);
}
.cta-section::after{
  content:"";position:absolute;left:-80px;bottom:-80px;width:340px;height:340px;opacity:.14;
  background:repeating-linear-gradient(45deg,var(--brand) 0 2px,transparent 2px 20px);
}
.cta-inner{position:relative;max-width:720px;margin:0 auto}
.cta-inner .eyebrow{justify-content:center}
.cta-title{font-size:34px;line-height:1.34;font-weight:800;color:#fff;margin:14px 0 16px;letter-spacing:-.3px}
.cta-desc{font-size:16px;color:rgba(255,255,255,.72);margin-bottom:30px;line-height:1.8}
.cta-note{margin-top:20px;font-size:13px;color:rgba(255,255,255,.5)}

/* FOOTER */
.site-footer{background:var(--ink);color:rgba(255,255,255,.6);border-top:1px solid rgba(16,224,166,.16)}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.15fr;gap:40px;padding:62px 0 46px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand .logo-text{font-size:16.5px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.55);max-width:300px}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-link{display:block;font-size:14px;padding:6px 0;color:rgba(255,255,255,.58);transition:color var(--t),padding-left var(--t)}
.footer-link:hover{color:var(--brand);padding-left:4px}
.footer-contact li{font-size:14px;display:flex;gap:10px;padding:6px 0;color:rgba(255,255,255,.58);line-height:1.7}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:5px;flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.4);line-height:1.8;
}

/* ============ RESPONSIVE ============ */
@media(min-width:1280px){
  .container{max-width:1200px}
}
@media(max-width:1023px){
  .header-inner{min-height:66px;gap:14px}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:4px;padding:14px 20px 20px;
    background:#0C1412;border-bottom:1px solid rgba(16,224,166,.22);
    box-shadow:0 18px 36px rgba(0,0,0,.45);
    display:none;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15.5px;border-radius:10px}
  .nav-link::after{display:none}
  .nav-link.active{background:rgba(16,224,166,.14)}
  .nav-cta{display:inline-flex;margin-top:10px;width:100%}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .hero{padding:60px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:38px}
  .hero-sub{font-size:16px;max-width:none}
  .section{padding:64px 0}
  .section-title{font-size:28px}
  .steps{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .proof-row{grid-template-columns:1fr;gap:24px}
  .proof-row.reverse .proof-media{order:0}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;padding:52px 0 36px}
  .cta-title{font-size:28px}
}
@media(max-width:639px){
  .container{padding:0 20px}
  .logo-text{font-size:15px}
  .logo-mark{width:34px;height:34px}
  .hero{padding:46px 0 56px}
  .hero-title{font-size:30px;letter-spacing:-.2px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .dl-card{padding:20px}
  .section{padding:52px 0}
  .section-title{font-size:24px}
  .stat-num{font-size:28px}
  .topic-grid{grid-template-columns:1fr}
  .cms-grid{grid-template-columns:1fr}
  .proof-body h3{font-size:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-title{font-size:24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{height:46px;font-size:14.5px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#10E0A6;
  --brand-deep:#0BC48F;
  --brand-press:#09A87B;
  --brand-tint:#E6FBF4;
  --lemon:#FFD84D;
  --danger:#FF5A47;
  --ink:#0C1412;
  --ink-soft:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(12,20,18,.06);
  --sh-2:0 12px 28px rgba(12,20,18,.12);
  --ease:cubic-bezier(.4,0,.2,1);
  --t:220ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease)}
img{max-width:100%;display:block;height:auto}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(12,20,18,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(16,224,166,.16);
  transition:box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,20,18,.98);
  box-shadow:0 12px 32px rgba(0,0,0,.38);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:16.5px;
  letter-spacing:.3px;
  flex:0 0 auto;
}
.logo-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(16,224,166,.22),rgba(16,224,166,.04));
  border:1px solid rgba(16,224,166,.38);
  flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.logo-text{white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand);font-size:.8em;margin-left:2px;letter-spacing:0}
.main-nav{display:none;margin-left:auto;align-items:center;gap:4px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:14.5px;
  color:rgba(255,255,255,.74);
  border-radius:10px;
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:7px;
  height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t) var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-cta{min-height:42px;padding:0 18px;font-size:14px;margin-left:8px}
.nav-toggle{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  margin-left:auto;
  border-radius:12px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  cursor:pointer;
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease);
}
.nav-toggle:hover{background:rgba(16,224,166,.16);border-color:rgba(16,224,166,.45)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform var(--t) var(--ease),opacity var(--t) var(--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)}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{
  display:none;
  border-top:1px solid rgba(255,255,255,.09);
  padding:12px 20px 20px;
  background:rgba(12,20,18,.99);
}
.mobile-drawer.is-open{display:block}
@media (min-width:1024px){.mobile-drawer{display:none!important}}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 12px;
  border-radius:10px;
  color:rgba(255,255,255,.8);
  font-size:15px;
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.drawer-link:hover,.drawer-link.active{background:rgba(16,224,166,.12);color:var(--brand)}
.drawer-cta{margin-top:10px;width:100%}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  text-align:center;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.btn-primary{background:var(--brand);color:#052A20}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(16,224,166,.3)}
.btn-primary:active{background:var(--brand-press);transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(16,224,166,.14);border-color:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-tint);color:#0A7A5C;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline:active{transform:translateY(1px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-press);font-weight:700;font-size:14px}
.link-arrow i{transition:transform var(--t) var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ Badge ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-tint);
  color:#0A7A5C;
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
}
.badge-lemon{background:rgba(255,216,77,.2);color:#7A5A00}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand);display:inline-block}
.dot-live{background:var(--danger)}

/* ============ Page band / breadcrumb ============ */
.page-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border-bottom:1px solid rgba(16,224,166,.18);
  padding:20px 0;
}
.page-band::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 10% 30%,rgba(16,224,166,.2),transparent 52%),
    repeating-linear-gradient(135deg,rgba(16,224,166,.05) 0 2px,transparent 2px 16px);
  pointer-events:none;
}
.breadcrumb{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{
  color:#fff;
  max-width:46ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
@media (max-width:640px){.breadcrumb .current{max-width:24ch}}

/* ============ Article ============ */
.article-shell{
  background:var(--white);
  padding:44px 0 20px;
}
@media (min-width:768px){.article-shell{padding:56px 0 24px}}
.article-wrap{
  max-width:820px;
  margin:0 auto;
  width:100%;
  padding:0 20px;
}
@media (min-width:768px){.article-wrap{padding:0 24px}}
.article-title{
  font-size:clamp(26px,4.2vw,36px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--ink);
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
  font-size:13.5px;
  color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand-press);font-size:12px}
.article-divider{height:1px;background:var(--line);margin:26px 0 28px}

.article-prose{font-size:16.5px;line-height:1.85;color:var(--text);word-break:break-word}
.article-prose p{margin:0 0 1.2em}
.article-prose h2{
  position:relative;
  font-size:24px;
  line-height:1.42;
  font-weight:800;
  color:var(--ink);
  margin:40px 0 16px;
  padding-left:16px;
}
.article-prose h2::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.2em;
  width:4px;border-radius:2px;
  background:var(--brand);
}
.article-prose h3{
  font-size:19px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink);
  margin:28px 0 12px;
}
.article-prose h4{
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  margin:22px 0 10px;
}
.article-prose ul,.article-prose ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-prose ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-prose ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.74em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand);
}
.article-prose ol{counter-reset:olc}
.article-prose ol li{position:relative;padding-left:26px;margin-bottom:10px;counter-increment:olc}
.article-prose ol li::before{
  content:counter(olc);
  position:absolute;
  left:0;top:.22em;
  width:20px;height:20px;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  color:#052A20;
  background:var(--brand-tint);
  border-radius:6px;
}
.article-prose blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--surface);
  border-left:4px solid var(--brand);
  border-radius:12px;
  color:#3B4A45;
}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose img{
  border-radius:var(--r-img);
  margin:22px auto;
  height:auto;
}
.article-prose figure{margin:22px 0}
.article-prose figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  margin-top:8px;
}
.article-prose a{color:var(--brand-press);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.article-prose a:hover{color:var(--brand-deep)}
.article-prose strong{color:var(--ink);font-weight:700}
.article-prose hr{border:none;height:1px;background:var(--line);margin:32px 0}
.article-prose table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:22px 0;
  font-size:14.5px;
}
.article-prose th{
  background:var(--surface);
  color:var(--ink);
  font-weight:700;
  text-align:left;
  padding:11px 14px;
  border:1px solid var(--line);
  white-space:nowrap;
}
.article-prose td{
  padding:11px 14px;
  border:1px solid var(--line);
  color:var(--text);
  vertical-align:top;
}
.article-prose tbody tr:nth-child(even) td{background:#FAFCFB}
.article-prose code{
  background:var(--surface);
  color:#0A7A5C;
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
}

/* ============ Empty state ============ */
.empty-state{
  margin:32px auto 8px;
  max-width:560px;
  text-align:center;
  padding:44px 28px;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-card);
}
.empty-state .empty-icon{
  width:56px;height:56px;
  margin:0 auto 16px;
  display:grid;place-items:center;
  border-radius:16px;
  background:var(--brand-tint);
  color:var(--brand-press);
  font-size:22px;
}
.empty-state h2{font-size:20px;color:var(--ink);font-weight:800;margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:20px}

/* ============ Related ============ */
.related{
  max-width:820px;
  margin:56px auto 0;
  padding:0 20px;
}
@media (min-width:768px){.related{padding:0 24px}}
.related-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin-bottom:20px;
}
.related-head h2{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  line-height:1.35;
}
.related-head p{font-size:13.5px;color:var(--muted);margin-top:4px}
.related-list{display:grid;gap:14px}
.related-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px 16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.related-item:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:rgba(16,224,166,.55);
}
.related-thumb{
  width:104px;
  height:68px;
  flex:0 0 auto;
  border-radius:10px;
  overflow:hidden;
  background:var(--surface);
}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{min-width:0;flex:1 1 auto}
.related-body h3{
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  line-height:1.45;
  margin-bottom:4px;
  transition:color var(--t) var(--ease);
}
.related-item:hover .related-body h3{color:var(--brand-press)}
.related-body p{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-item > i{color:var(--muted);font-size:13px;flex:0 0 auto;transition:transform var(--t) var(--ease),color var(--t) var(--ease)}
.related-item:hover > i{transform:translateX(4px);color:var(--brand-press)}

.back-actions{
  max-width:820px;
  margin:28px auto 0;
  padding:0 20px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
@media (min-width:768px){.back-actions{padding:0 24px}}
@media (max-width:560px){
  .back-actions{flex-direction:column}
  .back-actions .btn{width:100%}
  .related-thumb{width:84px;height:58px}
}

/* ============ CTA band ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  margin-top:72px;
  padding:64px 0;
}
@media (min-width:768px){.cta-band{padding:80px 0}}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 76% 16%,rgba(16,224,166,.24),transparent 52%),
    radial-gradient(circle at 12% 90%,rgba(16,224,166,.12),transparent 46%),
    repeating-linear-gradient(135deg,rgba(16,224,166,.06) 0 2px,transparent 2px 18px);
  pointer-events:none;
}
.cta-inner{position:relative;max-width:720px;margin:0 auto;text-align:center}
.cta-inner .badge{margin-bottom:16px;background:rgba(16,224,166,.16);color:var(--brand)}
.cta-title{
  font-size:clamp(24px,3.6vw,34px);
  font-weight:800;
  line-height:1.32;
  color:#fff;
  margin-bottom:12px;
  letter-spacing:-.2px;
}
.cta-desc{
  font-size:15.5px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:560px;
  margin:0 auto 26px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-note{
  margin-top:18px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.68);
  padding:56px 0 28px;
  border-top:1px solid rgba(16,224,166,.14);
}
.footer-grid{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:16.5px;
  margin-bottom:14px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34ch}
.footer-col h4{
  font-size:14.5px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.3px;
}
.footer-link{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.62);
  padding:6px 0;
  transition:color var(--t) var(--ease),transform var(--t) var(--ease);
}
.footer-link:hover{color:var(--brand);transform:translateX(3px)}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.62);
  padding:6px 0;
  line-height:1.7;
}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:6px;flex:0 0 auto}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:40px;
  padding-top:20px;
  font-size:12.5px;
  color:rgba(255,255,255,.46);
  line-height:1.7;
}
@media (max-width:560px){
  .footer-bottom{flex-direction:column}
  .site-footer{padding:44px 0 24px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
}

/* roulang page: category1 */
:root{
  --brand:#10E0A6;
  --brand-deep:#0BC48F;
  --brand-press:#09A87B;
  --brand-tint:#E6FBF4;
  --lemon:#FFD84D;
  --alert:#FF5A47;
  --ink:#0C1412;
  --ink-2:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --paper:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --shadow-1:0 2px 8px rgba(12,20,18,.06);
  --shadow-2:0 12px 28px rgba(12,20,18,.12);
  --dur:200ms;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.28;letter-spacing:-0.01em}
p{margin:0}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,20,18,.94);
  border-bottom:1px solid rgba(16,224,166,.16);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:inline-flex;width:30px;height:30px}
.logo-mark svg{width:30px;height:30px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;color:#C8D6D1;padding:8px 0;line-height:1.4;
  transition:color var(--dur) ease-out;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;
  background:var(--brand);transition:width var(--dur) ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{width:100%}
.nav-cta{height:42px;padding:0 20px;font-size:14.5px;margin-left:4px}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid rgba(16,224,166,.28);border-radius:12px;
  background:rgba(255,255,255,.04);cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--brand);border-radius:2px;transition:transform var(--dur) ease-out,opacity var(--dur) ease-out}
.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;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;
  transition:transform var(--dur) ease-out,background-color var(--dur) ease-out,
             box-shadow var(--dur) ease-out,color var(--dur) ease-out,border-color var(--dur) ease-out;
}
.btn-primary{background:var(--brand);color:#06231B}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(16,224,166,.30)}
.btn-primary:active{background:var(--brand-press);transform:translateY(1px);box-shadow:none}
.btn-ghost{background:var(--paper);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--brand-tint);border-color:rgba(16,224,166,.55);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px);background:#D9F7EC}
.btn-white{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.34);color:#fff}
.btn-white:hover{background:rgba(16,224,166,.16);border-color:rgba(16,224,166,.6);transform:translateY(-1px)}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- 页头窄带 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);padding:40px 0 52px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(12,20,18,.95) 0%,rgba(12,20,18,.78) 48%,rgba(12,20,18,.62) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#8AA09A;margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:#B9C9C4;transition:color var(--dur) ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#4A5A55}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4.2vw,42px);line-height:1.24;font-weight:800;
  max-width:760px;letter-spacing:-0.015em;
}
.page-hero h1 .accent{color:var(--brand)}
.hero-sub{margin-top:14px;font-size:16px;color:#A9BAB4;max-width:620px;line-height:1.75}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;color:#CFDDD8;
  border:1px solid rgba(16,224,166,.22);background:rgba(16,224,166,.07);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section-tight{padding:68px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;color:var(--brand-press);letter-spacing:.02em;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:clamp(24px,3vw,32px)}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text)}

/* ---------- 下载主区 ---------- */
.download-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:52px;align-items:start}
.download-lead h2{font-size:clamp(26px,3.2vw,34px)}
.download-lead > p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text);max-width:540px}
.step-list{margin-top:32px;display:grid;gap:22px}
.step-item{display:flex;gap:18px;align-items:flex-start}
.step-num{
  flex:none;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--brand-press);background:var(--brand-tint);border:1px solid rgba(16,224,166,.32);
}
.step-item h3{font-size:17px;margin-bottom:6px}
.step-item p{font-size:15px;line-height:1.8;color:var(--text)}

.download-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:box-shadow var(--dur) ease-out,transform var(--dur) ease-out;
}
.download-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.dc-top{display:flex;gap:20px;align-items:center}
.qr-box{
  flex:none;width:118px;height:118px;border-radius:var(--r-img);
  border:1px dashed rgba(16,224,166,.55);
  background:
    repeating-linear-gradient(135deg,rgba(16,224,166,.16) 0 2px,transparent 2px 12px),
    var(--brand-tint);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;font-weight:700;color:#0A6B53;line-height:1.5;padding:8px;
}
.dc-meta{min-width:0}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.pill-lemon{background:var(--lemon);color:#2A2000}
.dc-note{margin-top:12px;font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.plat-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.plat{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--text);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;padding:4px 11px;
}
.plat i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}
.dc-list{margin-top:24px;padding-top:22px;border-top:1px solid var(--line);display:grid;gap:12px}
.dc-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text)}
.dc-list li i{color:var(--brand-press);margin-top:4px;font-size:12px}
.download-card .btn{margin-top:24px}
.dc-foot{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.7}

/* ---------- 图文交错 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-row + .feature-row{margin-top:76px}
.feature-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  aspect-ratio:16/10;background:var(--brand-tint);
}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-body h2{font-size:clamp(22px,2.6vw,29px);margin-bottom:16px}
.feature-body p{font-size:16px;line-height:1.85;color:var(--text)}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:22px;font-size:15.5px;line-height:1.75;color:var(--text)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  border-radius:2px;background:var(--brand);
}
.feature-row-rev .feature-media{order:2}
.feature-row-rev .feature-body{order:1}

/* ---------- 对比表 ---------- */
.compare-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--paper);box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
.compare-table{width:100%;min-width:660px;border-collapse:collapse}
.compare-table thead th{
  background:var(--surface);color:var(--ink);font-size:14px;font-weight:700;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table tbody td{
  padding:16px 20px;font-size:14.5px;line-height:1.75;color:var(--text);
  border-bottom:1px solid var(--line);vertical-align:top;
}
.compare-table tbody tr:nth-child(even){background:#FAFCFB}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table th:first-child,.compare-table td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
.table-note{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow var(--dur) ease-out,border-color var(--dur) ease-out;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item:hover{border-color:rgba(16,224,166,.42);box-shadow:0 8px 20px rgba(12,20,18,.08)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;min-height:58px;
  font-size:16px;font-weight:600;color:var(--ink);
  background:none;border:none;text-align:left;cursor:pointer;line-height:1.6;
}
.faq-icon{position:relative;flex:none;width:22px;height:22px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-press);border-radius:2px;
  transition:transform var(--dur) ease-out,opacity var(--dur) ease-out;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--ink);padding:76px 0}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(680px 340px at 50% 0%,rgba(16,224,166,.24),transparent 72%);
}
.cta-section::after{
  content:"";position:absolute;top:0;right:0;width:46%;height:100%;
  background:repeating-linear-gradient(135deg,rgba(16,224,166,.13) 0 2px,transparent 2px 16px);
  clip-path:polygon(28% 0,100% 0,100% 100%,0 100%);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:680px;margin:0 auto}
.cta-inner h2{color:#fff;font-size:clamp(24px,3.2vw,34px)}
.cta-inner p{margin-top:16px;font-size:16px;line-height:1.85;color:#A9BAB4}
.cta-inner .btn-row{justify-content:center}
.cta-foot{margin-top:18px;font-size:13px;color:#7C8C87;font-variant-numeric:tabular-nums}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9C7C2;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{width:26px;height:26px}
.footer-brand .logo-mark svg{width:26px;height:26px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-brand .logo-text{font-size:17px;color:#fff;font-weight:800}
.footer-brand .logo-text em{font-style:normal;color:var(--brand)}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;letter-spacing:.04em;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#93A5A0;max-width:330px}
.footer-link{display:block;font-size:14px;color:#93A5A0;padding:6px 0;transition:color var(--dur) ease-out}
.footer-link:hover{color:var(--brand)}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#93A5A0;padding:6px 0;line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:4px;font-size:12px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(16,224,166,.14);
  margin-top:48px;padding:20px 0 30px;font-size:13px;color:#7C8C87;line-height:1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(12,20,18,.98);
    border-bottom:1px solid rgba(16,224,166,.18);
    padding:16px 20px 22px;
    box-shadow:0 18px 36px rgba(0,0,0,.42);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 4px;font-size:15.5px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-link::after{bottom:6px}
  .nav-cta{margin:14px 0 0;width:100%;height:46px}
  .download-layout{grid-template-columns:1fr;gap:40px}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row + .feature-row{margin-top:56px}
  .feature-row-rev .feature-media{order:0}
  .feature-row-rev .feature-body{order:1}
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:52px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:32px 0 42px}
  .dc-top{flex-direction:column;align-items:flex-start;gap:16px}
  .qr-box{width:100%;height:104px}
}
@media (max-width:639px){
  .header-inner{height:66px}
  .main-nav{top:66px}
  .logo-text{font-size:15.5px}
  .logo-mark,.logo-mark svg{width:26px;height:26px}
  .hero-sub{font-size:15px}
  .btn{width:100%;height:48px}
  .btn-row{gap:10px}
  .download-card{padding:20px}
  .step-item{gap:14px}
  .step-num{width:40px;height:40px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-section{padding:56px 0}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand:#10E0A6;
  --brand-dark:#0BC48F;
  --brand-press:#09A87B;
  --brand-tint:#E6FBF4;
  --brand-deep:#08372B;
  --lemon:#FFD84D;
  --danger:#FF5A47;
  --ink:#0C1412;
  --ink-2:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(12,20,18,.06);
  --shadow-2:0 12px 28px rgba(12,20,18,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.28;letter-spacing:.2px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;color:inherit}
ul{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 40px}}
a:focus-visible,button:focus-visible,input:focus-visible,.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(12,20,18,.94);
  border-bottom:1px solid rgba(16,224,166,.18);
  backdrop-filter:blur(10px);
  transition:box-shadow .22s ease-out,background .22s ease-out;
}
.site-header.is-scrolled{background:rgba(12,20,18,.99);box-shadow:0 12px 30px rgba(0,0,0,.38)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  background:rgba(16,224,166,.12);border:1px solid rgba(16,224,166,.34);
  transition:transform var(--ease),background var(--ease);
}
.brand:hover .logo-mark{transform:translateY(-1px);background:rgba(16,224,166,.2)}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.logo-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:.4px;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand);margin-left:2px}
.main-nav{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 12px;font-size:15px;color:rgba(255,255,255,.72);
  border-radius:8px;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .22s ease-out;
}
.nav-link:hover,.nav-link:focus-visible{color:#fff}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
@media(min-width:1024px){.header-actions{margin-left:8px}}
.badge-version{
  display:none;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--lemon);color:#1A1A0A;
  font-size:12px;font-weight:700;letter-spacing:.3px;white-space:nowrap;
}
@media(min-width:1180px){.badge-version{display:inline-flex}}
.nav-cta{height:38px;padding:0 16px;font-size:14px;border-radius:10px;display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:11px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:rgba(16,224,166,.16);border-color:rgba(16,224,166,.45)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{
  display:none;padding:8px 20px 20px;
  border-top:1px solid rgba(16,224,166,.16);
  background:rgba(12,20,18,.99);
}
.mobile-drawer.open{display:block}
@media(min-width:1024px){.mobile-drawer{display:none!important}}
.mobile-drawer a{
  display:flex;align-items:center;min-height:46px;padding:0 14px;
  color:rgba(255,255,255,.8);font-size:15px;border-radius:10px;
  transition:background var(--ease),color var(--ease);
}
.mobile-drawer a:hover{background:rgba(16,224,166,.14);color:var(--brand)}
.mobile-drawer a.active{color:var(--brand);background:rgba(16,224,166,.12);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:12px;height:46px;color:#06231B}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#06231B}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(16,224,166,.3)}
.btn-primary:active{background:var(--brand-press);transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn[disabled],.btn:disabled{opacity:.4;pointer-events:none}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(760px 300px at 12% -30%, rgba(16,224,166,.30), transparent 68%),
    linear-gradient(118deg, rgba(12,20,18,.95), rgba(12,20,18,.78)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:26px 0 44px;
  border-bottom:1px solid rgba(16,224,166,.16);
}
.page-head::after{
  content:"";position:absolute;right:-90px;top:-60px;width:340px;height:340px;
  background:repeating-linear-gradient(45deg,rgba(16,224,166,.16) 0 2px,transparent 2px 14px);
  transform:skewX(-12deg);pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.35)}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-head h1{
  color:#fff;font-size:28px;line-height:1.3;max-width:900px;margin:0 0 14px;font-weight:800;
}
@media(min-width:768px){.page-head h1{font-size:36px}}
@media(min-width:1024px){.page-head h1{font-size:44px}}
.page-head-sub{font-size:16px;color:rgba(255,255,255,.76);max-width:640px;margin:0}
@media(min-width:768px){.page-head-sub{font-size:18px}}
.page-head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 13px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.86);
  border:1px solid rgba(16,224,166,.28);
}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(16,224,166,.18)}
.pill-lemon{background:var(--lemon);color:#1A1A0A;border-color:transparent}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:64px 0}}
@media(min-width:1024px){.section{padding:88px 0}}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:32px}
@media(min-width:1024px){.section-head{margin-bottom:44px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
  font-size:13px;font-weight:700;letter-spacing:1.6px;color:var(--brand-press);text-transform:uppercase;
}
.eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:26px;margin-bottom:12px}
@media(min-width:768px){.section-head h2{font-size:32px}}
@media(min-width:1024px){.section-head h2{font-size:36px}}
.section-head p{font-size:16px;color:var(--text);margin:0}
.lede{font-size:16px;color:var(--text)}
@media(min-width:768px){.lede{font-size:17px}}

/* ---------- 概览三卡 ---------- */
.overview-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.overview-grid{grid-template-columns:repeat(3,1fr)}}
.overview-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.overview-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(16,224,166,.55)}
.overview-icon{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--brand-tint);color:var(--brand-press);font-size:16px;margin-bottom:14px;
}
.overview-card h3{font-size:17px;margin-bottom:6px}
.overview-card p{font-size:14.5px;color:var(--muted);margin:0}
.overview-card strong{color:var(--ink);font-size:18px;font-variant-numeric:tabular-nums}

/* ---------- 进度条 ---------- */
.progress-wrap{margin-bottom:36px}
.progress-track{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:12px}
.progress-track span{height:6px;border-radius:var(--r-pill);background:var(--line)}
.progress-track span:nth-child(1){background:var(--brand)}
.progress-track span:nth-child(2){background:var(--brand);opacity:.86}
.progress-track span:nth-child(3){background:var(--brand);opacity:.66}
.progress-track span:nth-child(4){background:var(--brand);opacity:.44}
.progress-track span:nth-child(5){background:var(--brand);opacity:.26}
.progress-labels{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.progress-labels span{font-size:12px;color:var(--muted);text-align:center;letter-spacing:.4px}
@media(min-width:768px){.progress-labels span{font-size:13px}}

/* ---------- 步骤列表 ---------- */
.steps{position:relative;display:flex;flex-direction:column}
.step{position:relative;padding:0 0 36px 0}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:27px;top:58px;bottom:-2px;width:0;
  border-left:2px dashed rgba(16,224,166,.42);
}
.step:last-child::before{display:none}
.step-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px}
.step-num{
  flex:0 0 auto;display:grid;place-items:center;width:56px;height:56px;
  border-radius:16px;background:#fff;border:2px solid rgba(16,224,166,.55);
  font-family:Inter,"PingFang SC",sans-serif;font-size:22px;font-weight:800;
  color:transparent;-webkit-text-stroke:1.4px var(--brand-press);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
  position:relative;z-index:1;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.step:hover .step-num{background:var(--brand-tint);border-color:var(--brand);transform:translateY(-2px)}
.step-title-wrap{padding-top:4px}
.step-kicker{font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--brand-press);margin-bottom:4px}
.step-title-wrap h3{font-size:20px}
@media(min-width:768px){.step-title-wrap h3{font-size:22px}}
.step-body{
  display:grid;grid-template-columns:1fr;gap:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);margin-left:0;
}
@media(min-width:900px){
  .step-body{grid-template-columns:1.3fr .9fr;padding:26px;margin-left:72px;gap:26px}
}
.step-body p{font-size:15.5px;line-height:1.8}
.check-list{list-style:none;display:grid;gap:9px;margin:16px 0 0}
.check-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);
}
.shot{
  aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-tint);
}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.shot:hover img{transform:scale(1.03)}
.shot-cap{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.6}
.shot-stripe{
  aspect-ratio:16/10;border-radius:var(--r-img);border:1px solid var(--line);
  background:
    repeating-linear-gradient(45deg,rgba(16,224,166,.14) 0 10px,transparent 10px 22px),
    var(--brand-tint);
  display:grid;place-items:center;text-align:center;padding:18px;
}
.shot-stripe span{font-size:13px;color:var(--brand-press);font-weight:600;line-height:1.6}

/* ---------- 常见卡点 ---------- */
.pit-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.pit-grid{grid-template-columns:repeat(3,1fr)}}
.pit-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.pit-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(16,224,166,.5)}
.pit-tag{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(255,216,77,.9);color:#1A1A0A;
  font-size:12px;font-weight:700;margin-bottom:12px;
}
.pit-card h3{font-size:17px;margin-bottom:8px}
.pit-card p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.72}

/* ---------- 表格 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  overflow-x:auto;box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:640px}
caption{caption-side:top;text-align:left;padding:16px 20px 0;font-size:13px;color:var(--muted)}
th,td{padding:14px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
th{background:var(--surface);color:var(--ink);font-weight:700;font-size:14px;letter-spacing:.3px;white-space:nowrap}
tbody tr:nth-child(even){background:#FAFCFB}
tbody tr:last-child td{border-bottom:0}
td strong{color:var(--ink);font-variant-numeric:tabular-nums}
.table-note{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(16,224,166,.5)}
.faq-item.open{border-color:rgba(16,224,166,.65);box-shadow:0 10px 24px rgba(12,20,18,.08)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:16px 20px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-icon{
  flex:0 0 auto;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand-press);font-size:12px;
  transition:transform .22s ease-out,background var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#06231B}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--muted)}
.faq-a-inner strong{color:var(--ink)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;text-align:center;
  background:
    radial-gradient(620px 260px at 50% 0%, rgba(16,224,166,.32), transparent 70%),
    var(--ink);
  padding:56px 0;
}
@media(min-width:1024px){.cta-band{padding:80px 0}}
.cta-band::before{
  content:"";position:absolute;left:-10%;right:-10%;top:0;height:100%;
  background:repeating-linear-gradient(45deg,rgba(16,224,166,.13) 0 2px,transparent 2px 16px);
  opacity:.5;pointer-events:none;
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:14px}
@media(min-width:768px){.cta-band h2{font-size:34px}}
.cta-band p{color:rgba(255,255,255,.74);max-width:600px;margin:0 auto 26px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
@media(max-width:640px){.cta-actions .btn{width:100%}}
.cta-note{font-size:13px;color:rgba(255,255,255,.52);margin-top:18px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:56px 0 26px;border-top:1px solid rgba(16,224,166,.16)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{width:34px;height:34px}
.footer-brand .logo-text{font-size:16px}
.footer-col p{font-size:14px;line-height:1.8;margin:0;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:1px;margin-bottom:16px;font-weight:700}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;
  transition:color var(--ease),transform var(--ease);
}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact{list-style:none;display:grid;gap:10px}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:4px;flex:0 0 auto}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.42);line-height:1.7;
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --primary:#10E0A6;
  --primary-dark:#0BC48F;
  --primary-press:#09A87B;
  --primary-tint:#E6FBF4;
  --accent:#FFD84D;
  --danger:#FF5A47;
  --ink:#0C1412;
  --ink-2:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --paper:#FFFFFF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-sm:0 2px 8px rgba(12,20,18,.06);
  --shadow-lg:0 12px 28px rgba(12,20,18,.12);
  --t:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:rgba(16,224,166,.28);color:var(--ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 40px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(12,20,18,.94);
  border-bottom:1px solid rgba(16,224,166,.14);
  transition:background var(--t),box-shadow var(--t);
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.is-scrolled{background:rgba(12,20,18,.99);box-shadow:0 10px 30px rgba(0,0,0,.38)}
.header-inner{position:relative;display:flex;align-items:center;gap:14px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;display:grid;place-items:center;border-radius:11px;
  background:linear-gradient(135deg,rgba(16,224,166,.24),rgba(16,224,166,.04));
  border:1px solid rgba(16,224,166,.38);
}
.logo-mark svg{width:21px;height:21px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.logo-text{color:#fff;font-size:16px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;color:rgba(255,255,255,.72);border-radius:9px;
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary)}
.nav-cta{margin-left:12px;height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;border-radius:11px;
  border:1px solid rgba(16,224,166,.32);background:rgba(16,224,166,.06);
}
.nav-toggle span{width:20px;height:2px;border-radius:2px;background:#fff;transition:transform var(--t),opacity var(--t)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:1023px){
  .header-inner{height:64px}
  .logo-text{font-size:15px}
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;left:-20px;right:-20px;top:100%;margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;display:none;
    padding:14px 20px 22px;background:#0C1412;
    border-bottom:1px solid rgba(16,224,166,.18);
    box-shadow:0 20px 44px rgba(0,0,0,.5);
  }
  .main-nav.open{display:flex}
  .nav-link{height:48px;padding:0 6px;font-size:16px;color:rgba(255,255,255,.82)}
  .nav-link::after{left:6px;right:auto;width:26px;bottom:8px}
  .nav-cta{margin:14px 0 0;width:100%;height:48px;justify-content:center;font-size:15px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#06231B;box-shadow:0 6px 18px rgba(16,224,166,.26)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(16,224,166,.34)}
.btn-outline{border-color:rgba(255,255,255,.3);color:#fff}
.btn-outline:hover{background:rgba(16,224,166,.14);border-color:rgba(16,224,166,.55)}
.btn-ghost{background:var(--primary-tint);color:#0A7F60;border-color:rgba(16,224,166,.32)}
.btn-ghost:hover{background:#d5f8ea;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);padding:40px 0 52px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 280px at 84% 8%,rgba(16,224,166,.30),transparent 70%),
    linear-gradient(180deg,rgba(12,20,18,.72),rgba(12,20,18,.95));
}
.page-hero .speed-lines{
  position:absolute;right:-10%;top:-40%;width:52%;height:180%;
  background:repeating-linear-gradient(45deg,rgba(16,224,166,.18) 0 2px,transparent 2px 22px);
  transform:skewX(-8deg);opacity:.5;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55)}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:rgba(255,255,255,.88);max-width:64vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;margin-top:22px;
  border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:#7CF2CE;background:rgba(16,224,166,.14);border:1px solid rgba(16,224,166,.42);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(16,224,166,.18)}
.page-title{font-size:clamp(25px,4.2vw,44px);color:#fff;margin:16px 0 14px;line-height:1.24;letter-spacing:-.01em}
.page-title .hl{color:var(--primary)}
.page-sub{max-width:660px;font-size:15.5px;color:rgba(255,255,255,.74);line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-chip{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.8);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
}
.hero-chip i{color:var(--primary);font-size:12px}
.hero-chip--yellow{background:rgba(255,216,77,.14);border-color:rgba(255,216,77,.4);color:#FFE79A}

/* ---------- sections ---------- */
.section{padding:52px 0}
.section--surface{background:var(--surface)}
.section--paper{background:var(--paper)}
@media(min-width:768px){.section{padding:68px 0}}
@media(min-width:1024px){.section{padding:84px 0}}
.section-head{max-width:730px;margin-bottom:30px}
.section-head--row{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;
  max-width:none;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:10px;
  font-size:12.5px;font-weight:800;letter-spacing:.14em;color:#0A7F60;
}
.eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--primary)}
.section-title{font-size:clamp(21px,3vw,32px);letter-spacing:-.01em}
.section-desc{margin-top:10px;font-size:15.5px;color:var(--text);line-height:1.85}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:#0A7F60;
  transition:color var(--t),gap var(--t);
}
.link-more:hover{color:var(--primary-press);gap:11px}
.link-more i{font-size:12px}

/* ---------- progress rail ---------- */
.progress-rail{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:640px){.progress-rail{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.progress-rail{grid-template-columns:repeat(5,1fr)}}
.progress-card{
  display:flex;flex-direction:column;gap:6px;padding:18px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.progress-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(16,224,166,.45)}
.progress-card .num{
  font-size:12px;font-weight:800;letter-spacing:.14em;color:#0A7F60;
  font-variant-numeric:tabular-nums;
}
.progress-card h3{font-size:16px;margin-top:2px}
.progress-card p{font-size:13px;color:var(--muted);line-height:1.7}
.progress-card .bar{height:4px;margin-top:10px;border-radius:999px;background:var(--primary-tint);overflow:hidden}
.progress-card .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-dark))}
.progress-card .time{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.progress-card .time i{color:var(--primary-dark);font-size:11px}

/* ---------- steps ---------- */
.step-list{display:flex;flex-direction:column;gap:22px}
.step-item{
  position:relative;display:grid;grid-template-columns:1fr;gap:16px;
  padding:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(16,224,166,.4)}
@media(min-width:768px){
  .step-item{grid-template-columns:86px 1fr;gap:22px;padding:26px}
  .step-item + .step-item::before{
    content:"";position:absolute;left:66px;top:-22px;height:22px;
    border-left:2px dashed rgba(16,224,166,.45);
  }
}
@media(min-width:1024px){
  .step-item.has-media{grid-template-columns:86px 1fr 290px}
}
.step-num{
  font-size:36px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1.6px rgba(16,224,166,.75);
  font-variant-numeric:tabular-nums;
}
@media(min-width:768px){.step-num{font-size:46px}}
.step-body h3{font-size:18px;margin-bottom:8px}
@media(min-width:768px){.step-body h3{font-size:20px}}
.step-body > p{font-size:15px;color:var(--text);line-height:1.85}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--primary-tint);color:#0A7F60;
  border:1px solid rgba(16,224,166,.26);
}
.tag--yellow{background:#FFF6D6;color:#8A6A00;border-color:rgba(255,216,77,.65)}
.tag--plain{background:#F3F7F5;color:var(--muted);border-color:var(--line)}
.step-points{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.step-points li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text);line-height:1.75}
.step-points li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.step-media{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);
}
.step-media img{width:100%;height:100%;object-fit:cover}
@media(max-width:1023px){.step-media{aspect-ratio:16/9}}
.step-media figcaption{display:none}

/* ---------- pit cards ---------- */
.pit-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:768px){.pit-grid{grid-template-columns:repeat(3,1fr)}}
.pit-card{
  padding:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pit-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(16,224,166,.45)}
.pit-icon{
  width:44px;height:44px;display:grid;place-items:center;margin-bottom:14px;
  border-radius:50%;color:#0A7F60;background:var(--primary-tint);
  border:1px solid rgba(16,224,166,.32);font-size:16px;
}
.pit-card h3{font-size:17px;margin-bottom:8px}
.pit-card p{font-size:14.5px;color:var(--text);line-height:1.8}
.pit-card .pit-fix{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--muted);
}
.pit-card .pit-fix strong{color:#0A7F60;font-weight:700}

/* ---------- checklist ---------- */
.check-wrap{
  display:grid;gap:26px;grid-template-columns:1fr;
  padding:26px;border-radius:20px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
@media(min-width:1024px){.check-wrap{grid-template-columns:.85fr 1.15fr;align-items:center;padding:32px;gap:36px}}
.check-visual{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.check-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.check-visual .badge-float{
  position:absolute;left:14px;bottom:14px;display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(12,20,18,.82);color:#7CF2CE;border:1px solid rgba(16,224,166,.45);
}
.check-list{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:640px){.check-list{grid-template-columns:repeat(2,1fr)}}
.check-item{
  display:flex;gap:12px;align-items:flex-start;padding:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:border-color var(--t),background var(--t);
}
.check-item:hover{border-color:rgba(16,224,166,.5);background:#fff}
.check-item .box{
  flex:0 0 auto;width:22px;height:22px;margin-top:2px;display:grid;place-items:center;
  border-radius:7px;border:1.5px solid rgba(16,224,166,.65);color:#0A7F60;font-size:11px;
  background:#fff;
}
.check-item .txt strong{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.check-item .txt span{display:block;font-size:13px;color:var(--muted);line-height:1.7;margin-top:2px}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.open{border-color:rgba(16,224,166,.55);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:16px 20px;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--ink);
  transition:color var(--t);
}
.faq-q:hover{color:#0A7F60}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-icon{
  flex:0 0 auto;position:relative;width:24px;height:24px;border-radius:50%;
  border:1px solid rgba(16,224,166,.5);background:var(--primary-tint);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:#0A7F60;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a p{padding:0 20px 18px;font-size:14.8px;line-height:1.85;color:var(--text)}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink);padding:60px 0}
@media(min-width:1024px){.cta-band{padding:80px 0}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(540px 280px at 50% -10%,rgba(16,224,166,.30),transparent 72%);
}
.cta-band::after{
  content:"";position:absolute;left:-8%;bottom:-60%;width:60%;height:180%;
  background:repeating-linear-gradient(45deg,rgba(16,224,166,.12) 0 2px,transparent 2px 24px);
  transform:skewX(-10deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
.cta-inner h2{color:#fff;font-size:clamp(22px,3.2vw,34px);line-height:1.3}
.cta-inner p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.74);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
@media(max-width:520px){.cta-actions .btn{width:100%}}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.5)}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;margin-bottom:18px;
  border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.04em;
  background:var(--accent);color:#231A00;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);border-top:1px solid rgba(16,224,166,.14);padding:54px 0 24px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.02em}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-link{display:block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.6);transition:color var(--t),transform var(--t)}
.footer-link:hover{color:var(--primary);transform:translateX(3px)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;padding:5px 0;font-size:14px;color:rgba(255,255,255,.6)}
.footer-contact i{color:var(--primary);font-size:13px;margin-top:6px}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.42);line-height:1.8;
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --brand:#10E0A6;
  --brand-dark:#0BC48F;
  --brand-press:#09A87B;
  --brand-tint:#E6FBF4;
  --lemon:#FFD84D;
  --alert:#FF5A47;
  --ink:#0C1412;
  --ink-2:#16211E;
  --text:#4A5A55;
  --muted:#7C8C87;
  --line:#DCE5E1;
  --surface:#F3F7F5;
  --white:#FFFFFF;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 2px 8px rgba(12,20,18,.06);
  --shadow-2:0 12px 28px rgba(12,20,18,.12);
  --t:.2s ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--white);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body h1,body h2,body h3,body h4{
  margin:0;
  color:var(--ink);
  font-weight:800;
  line-height:1.28;
}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(12,20,18,.96);
  border-bottom:1px solid rgba(16,224,166,.14);
  backdrop-filter:blur(8px);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{
  background:rgba(12,20,18,.99);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:rgba(16,224,166,.12);
  border:1px solid rgba(16,224,166,.35);
  display:grid;place-items:center;
  color:var(--brand);
  flex:none;
}
.logo-mark svg{
  width:20px;height:20px;
  fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;
}
.logo-text{
  color:#fff;
  font-size:17px;
  font-weight:800;
  letter-spacing:.04em;
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  color:var(--brand);
  font-size:12.5px;
  margin-left:3px;
  letter-spacing:.02em;
}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  display:inline-block;
  color:#C9D6D1;
  font-size:15px;
  padding:10px 0;
  transition:color var(--t);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-sm);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.18);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.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;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-md);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),background var(--t),box-shadow var(--t),border-color var(--t),color var(--t);
}
.btn-primary{background:var(--brand);color:#07231B;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(16,224,166,.28);}
.btn-primary:active{background:var(--brand-press);transform:translateY(1px);box-shadow:none;}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-tint);color:#0A7A5E;transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost:hover{background:rgba(16,224,166,.14);border-color:rgba(16,224,166,.5);}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  padding:54px 0 50px;
  color:#fff;
  background:
    linear-gradient(180deg,rgba(12,20,18,.93),rgba(12,20,18,.97)),
    url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  border-bottom:1px solid rgba(16,224,166,.16);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(16,224,166,.07) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:#8FA49E;
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{color:#B9C9C3;transition:color var(--t);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span[aria-current]{color:#fff;}
.page-head h1{
  color:#fff;
  font-size:clamp(25px,3.4vw,38px);
  max-width:840px;
  letter-spacing:-.01em;
}
.page-head-desc{
  margin-top:14px;
  font-size:16px;
  color:#A9BCB6;
  max-width:720px;
}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.head-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:#CFEDE4;
  background:rgba(16,224,166,.10);
  border:1px solid rgba(16,224,166,.26);
}
.head-tag::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}

/* ============ 板块 ============ */
.section{padding:84px 0;}
.section-alt{background:var(--surface);}
.section-tight{padding:0 0 84px;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-tint);
  color:#0A7A5E;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(24px,2.9vw,33px);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  font-size:15.5px;
  color:var(--muted);
}

/* ============ 网格与卡片 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:#C3E9DC;
}
.card:hover h3{color:var(--brand-press);}
.card h3{
  font-size:18px;
  margin-bottom:10px;
  transition:color var(--t);
}
.card p{font-size:14.8px;line-height:1.82;color:var(--text);}
.icon-circle{
  width:44px;height:44px;
  border-radius:50%;
  background:var(--brand-tint);
  color:#0A7A5E;
  display:grid;place-items:center;
  font-size:17px;
  margin-bottom:16px;
  border:1px solid rgba(16,224,166,.28);
}

/* ============ 图文交错 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.split.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
  background:linear-gradient(135deg,var(--brand-tint),#D7F3E8);
  box-shadow:var(--shadow-1);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body h2{font-size:clamp(23px,2.6vw,30px);margin-bottom:16px;}
.split-body > p{font-size:15.5px;color:var(--text);}
.check-list{margin-top:20px;display:grid;gap:10px;}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:14.8px;
  line-height:1.8;
  color:var(--text);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand);
}

/* ============ 处理路径 ============ */
.flow-track{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.flow-step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C3E9DC;}
.flow-num{
  display:block;
  font-family:Inter,ui-sans-serif,system-ui,sans-serif;
  font-size:30px;
  font-weight:800;
  line-height:1;
  letter-spacing:.04em;
  color:transparent;
  -webkit-text-stroke:1.4px rgba(9,168,123,.6);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ============ 问答列表 ============ */
.qa-list{border-top:1px solid var(--line);}
.qa-item{
  display:grid;
  grid-template-columns:minmax(0,300px) minmax(0,1fr);
  gap:36px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.qa-item dt{
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  line-height:1.6;
}
.qa-item dd{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,340px) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.faq-aside h2{font-size:clamp(22px,2.5vw,28px);margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--muted);margin-bottom:22px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{border-color:#B7E7D8;box-shadow:0 10px 24px rgba(12,20,18,.08);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  min-height:56px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand-press);}
.faq-icon{position:relative;width:18px;height:18px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-press);
  border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .24s ease-out;
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 22px 22px;
  font-size:14.8px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ 说明块 ============ */
.note-block{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 30px;
  font-size:13px;
  line-height:1.9;
  color:var(--muted);
}
.note-block h2{
  font-size:15px;
  margin-bottom:10px;
  color:var(--ink);
  letter-spacing:.02em;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  padding:80px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 50% -10%,rgba(16,224,166,.24),transparent 62%);
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(16,224,166,.09) 0 1px,transparent 1px 15px);
  opacity:.55;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  max-width:720px;
  margin:0 auto;
  text-align:center;
}
.cta-inner h2{
  color:#fff;
  font-size:clamp(24px,3vw,32px);
  margin-bottom:16px;
}
.cta-inner p{
  color:#A9BCB6;
  font-size:15.5px;
  margin-bottom:28px;
}
.cta-note{
  display:block;
  margin-top:18px;
  font-size:13px;
  color:#7B8F89;
  letter-spacing:.02em;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#9FB2AC;
  padding:64px 0 28px;
  border-top:1px solid rgba(16,224,166,.14);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col p{font-size:14px;line-height:1.85;color:#8CA09A;}
.footer-link{
  display:block;
  font-size:14px;
  color:#9FB2AC;
  padding:6px 0;
  transition:color var(--t);
}
.footer-link:hover{color:var(--brand);}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:#9FB2AC;
  padding:6px 0;
  line-height:1.7;
}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:6px;flex:none;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:#7B8F89;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 32px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:72px;
    left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 32px 40px;
    background:#0C1412;
    border-top:1px solid rgba(16,224,166,.14);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity var(--t),transform var(--t);
  }
  .main-nav.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{
    padding:16px 4px;
    font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-link::after{display:none;}
  .nav-cta{
    margin-top:22px;
    width:100%;
    height:48px;
    font-size:15px;
    border-radius:var(--radius-md);
  }
  .section{padding:64px 0;}
  .section-tight{padding:0 0 64px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{gap:36px;grid-template-columns:minmax(0,1fr);}
  .split.reverse .split-media{order:0;}
  .flow-track{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:32px;}
  .qa-item{grid-template-columns:minmax(0,1fr);gap:10px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .page-head{padding:44px 0 40px;}
}
@media (max-width:767px){
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .flow-track{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-tight{padding:0 0 48px;}
  .header-inner{height:64px;}
  .main-nav{top:64px;padding:12px 20px 36px;}
  .logo-text{font-size:15.5px;}
  .logo-text em{font-size:11.5px;}
  .card{padding:22px;}
  .cta-band{padding:56px 0;}
  .btn{width:100%;}
  .nav-cta{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .note-block{padding:22px 20px;}
  .faq-q{font-size:15px;padding:18px;}
  .faq-a-inner p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition:none !important;
    animation:none !important;
    scroll-behavior:auto !important;
  }
}