/* roulang page: index */
:root{
  --brand-600:#0B8C88;
  --brand-500:#0EA5A0;
  --brand-300:#6FD9CE;
  --brand-050:#E8F7F5;
  --ink-900:#0A2B2A;
  --ink-700:#2C4746;
  --ink-500:#5C7370;
  --accent-500:#FF8A3D;
  --accent-600:#E8721F;
  --accent-050:#FFF1E6;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#072A29;
  --grad-brand:linear-gradient(120deg,#0B8C88 0%,#12B3AC 42%,#7FE0C8 100%);
  --grad-cta:linear-gradient(135deg,#FF8A3D,#FFB25B);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,43,42,.05),0 2px 8px rgba(10,43,42,.05);
  --sh-2:0 10px 24px rgba(10,43,42,.08);
  --sh-3:0 18px 44px rgba(10,43,42,.12);
  --sh-brand:0 12px 28px rgba(14,165,160,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:0}
h1{font-size:clamp(30px,4.2vw,54px);line-height:1.22}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.45;font-weight:600}
p{margin:0 0 1em;max-width:42em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin-bottom:.4em}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head p{margin:.4em 0 0;color:var(--ink-500);font-size:15px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);background:var(--brand-050);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:14px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease),height .25s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-brand)}
.brand-mark svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{position:relative;padding:8px 12px;font-size:16px;color:var(--ink-700);border-radius:var(--r-sm);white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:14px;width:16px;height:16px;stroke:var(--ink-500);fill:none;stroke-width:1.8}
.nav-search input{width:200px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;padding:0 16px 0 38px;font-size:14px;color:var(--ink-900);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.btn-text{padding:8px 10px;font-size:15px;color:var(--ink-700);border-radius:var(--r-sm)}
.btn-text:hover{color:var(--brand-600);background:var(--brand-050)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border:0;border-radius:var(--r-pill);font-size:16px;font-weight:600;text-align:center;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease)}
.btn-sm{height:40px;padding:0 20px;font-size:15px}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:var(--sh-brand)}
.btn-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 16px 32px rgba(232,114,31,.28)}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand-600);border:1.5px solid var(--brand-500)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{background:transparent;color:#A9B7B5;border:1px solid var(--line);box-shadow:none;cursor:not-allowed;transform:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{position:fixed;inset:0;background:rgba(7,42,41,.45);opacity:0;visibility:hidden;transition:opacity .25s var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;background:#fff;z-index:80;transform:translateX(100%);transition:transform .3s var(--ease);padding:22px;overflow-y:auto;box-shadow:var(--sh-3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;font-size:18px;color:var(--ink-700)}
.drawer-search{width:100%;height:46px;border-radius:var(--r-pill);border:1px solid var(--line);padding:0 18px;font-size:15px;margin-bottom:18px}
.drawer-search:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.drawer-links{display:flex;flex-direction:column;margin-bottom:20px}
.drawer-links a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-700)}
.drawer-links a.is-active{color:var(--brand-600);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:12px}
.drawer-actions .btn{width:100%}

/* hero */
.hero{position:relative;overflow:hidden;padding:72px 0 64px;background:var(--bg)}
.hero::before{content:"";position:absolute;width:620px;height:620px;right:-160px;top:-220px;border-radius:50%;background:radial-gradient(circle,rgba(111,217,206,.28) 0%,rgba(111,217,206,0) 68%)}
.hero::after{content:"";position:absolute;width:460px;height:460px;left:-180px;bottom:-220px;border-radius:50%;background:radial-gradient(circle,rgba(255,178,91,.24) 0%,rgba(255,178,91,0) 70%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;min-height:520px}
.hero-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:7px 16px;font-size:13px;font-weight:600;color:var(--brand-600);box-shadow:var(--sh-1);margin-bottom:20px}
.hero-pill i{width:7px;height:7px;border-radius:50%;background:var(--accent-500);display:inline-block}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:34em;margin-bottom:28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--sh-1)}
.stat b{display:block;font-size:26px;font-weight:700;line-height:1.2;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{display:block;font-size:13px;color:var(--ink-500);line-height:1.6;margin-top:4px}
.hero-card{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid transparent;background:
  linear-gradient(#fff,#fff) padding-box,
  linear-gradient(120deg,#6FD9CE,#FFB25B) border-box;
  box-shadow:var(--sh-3);min-height:380px}
.hero-card img{width:100%;height:100%;min-height:380px;object-fit:cover;border-radius:0}
.hero-card .hero-chip{position:absolute;top:18px;left:18px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;color:var(--brand-600)}
.hero-card .hero-bar{position:absolute;left:18px;right:18px;bottom:18px;background:rgba(255,255,255,.9);backdrop-filter:blur(4px);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 16px;display:flex;justify-content:space-between;gap:12px}
.hero-bar div{font-size:13px;color:var(--ink-500);line-height:1.5}
.hero-bar strong{display:block;font-size:15px;color:var(--ink-900)}

/* claim */
.claim-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start}
.claim-copy{position:relative;padding-left:22px}
.claim-copy::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:var(--grad-brand)}
.claim-copy p{color:var(--ink-700);font-size:16px}
.claim-side{display:grid;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.side-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.side-card h4{margin-bottom:8px}
.side-card p{margin:0;font-size:14px;color:var(--ink-500)}
.side-card .dotline{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-600);font-weight:600;margin-bottom:12px}
.side-card .dotline i{width:8px;height:8px;border-radius:50%;background:var(--brand-500);display:inline-block}

/* story */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:64px}
.story-row:last-child{margin-bottom:0}
.story-row.reverse .story-media{order:2}
.story-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2)}
.story-media img{width:100%;height:320px;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.story-media:hover img{transform:scale(1.04)}
.story-text h3{margin-bottom:12px}
.story-list{list-style:none;padding:0;margin:20px 0 0}
.story-list li{position:relative;padding-left:22px;color:var(--ink-700);font-size:15px}
.story-list li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:8px;border-radius:3px;background:var(--grad-brand)}

/* feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s var(--ease),box-shadow .25s var(--ease);padding:0}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);z-index:3}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card:hover::before{transform:scaleX(1)}
.card-media{overflow:hidden}
.card-media img{width:100%;height:200px;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.chip{align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-600);background:var(--brand-050);border-radius:var(--r-pill);padding:4px 12px}
.card h3{font-size:19px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14px;color:var(--ink-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:none}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500);padding-top:8px}
.card-foot .arrow{color:var(--brand-600);font-weight:600}
.span-6{grid-column:span 6}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.card-lg .card-media img{height:288px}
.card-wide{flex-direction:row;align-items:stretch}
.card-wide .card-media{flex:0 0 46%}
.card-wide .card-media img{height:100%;min-height:238px}
.card-wide .card-body{flex:1}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cat-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);color:inherit;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);color:inherit}
.cat-card .cat-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-050);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.cat-card .cat-icon svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cat-card h3{margin-bottom:8px}
.cat-card p{font-size:14px;color:var(--ink-500);margin:0 0 16px}
.cat-card .cat-more{font-size:14px;font-weight:600;color:var(--brand-600)}

/* news / cms */
.news-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.news-item{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);color:inherit;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:inherit}
.news-item h3{font-size:17px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:14px;color:var(--ink-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:none}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-500);margin-top:auto;padding-top:6px}
.empty-state{grid-column:1/-1;text-align:center;padding:48px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg)}
.empty-state svg{width:44px;height:44px;stroke:var(--brand-300);fill:none;stroke-width:1.6;margin:0 auto 14px}
.empty-state p{color:var(--ink-500);margin:0 auto 18px;max-width:32em}

/* trust */
.trust-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:32px}
.trust-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;text-align:center;box-shadow:var(--sh-1)}
.trust-item b{display:block;font-size:28px;font-weight:700;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust-item span{font-size:13px;color:var(--ink-500)}
.partner-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.partner-box{height:78px;border-radius:var(--r-md);border:1px solid var(--line);background:linear-gradient(135deg,#F0F4F3,#FAFCFB);display:flex;align-items:center;justify-content:center;color:#A9B7B5;font-size:13px}

/* faq */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);text-align:left}
.faq-q .sign{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-600);font-size:15px;transition:transform .25s var(--ease),background .25s var(--ease)}
.faq-item.is-open .faq-q .sign{transform:rotate(90deg);background:var(--brand-050)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{position:relative;padding:0 24px 22px 24px;font-size:15px;color:var(--ink-700)}
.faq-a-inner::before{content:"";position:absolute;left:24px;top:2px;bottom:24px;width:4px;border-radius:3px;background:var(--grad-brand)}
.faq-a-inner p{margin:0;padding-left:18px;max-width:none}

/* cta */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad-brand);color:#fff;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-brand)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:16px 16px;opacity:.06}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.92);margin:0;max-width:36em}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{height:48px;min-width:240px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.94);padding:0 18px;font-size:15px;color:var(--ink-900)}
.cta-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.28)}

/* footer */
.site-footer{background:var(--deep);color:#A9C4C1;margin-top:0;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a{display:block;color:#A9C4C1;font-size:14px;padding:6px 0}
.footer-col a:hover{color:#7FE0C8}
.footer-col p{font-size:14px;color:#8FB0AD;margin:0}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(169,196,193,.35);display:flex;align-items:center;justify-content:center;padding:0}
.social-row a svg{width:16px;height:16px;stroke:#A9C4C1;fill:none;stroke-width:1.6}
.social-row a:hover{border-color:#7FE0C8}
.social-row a:hover svg{stroke:#7FE0C8}
.footer-bottom{border-top:1px solid rgba(169,196,193,.16);padding:22px 0 32px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FB0AD}
.footer-bottom a{color:#8FB0AD}
.footer-bottom a:hover{color:#7FE0C8}

@media (max-width:1279px){
  .span-3{grid-column:span 6}
}
@media (max-width:1023px){
  .nav-links,.nav-search,.nav-actions .btn-text{display:none}
  .nav-toggle{display:flex}
  .nav-actions{gap:10px}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:auto}
  .hero-card,.hero-card img{min-height:280px}
  .claim-grid{grid-template-columns:1fr;gap:32px}
  .story-row{grid-template-columns:1fr;gap:28px;margin-bottom:48px}
  .story-row.reverse .story-media{order:0}
  .cat-grid{grid-template-columns:1fr 1fr}
  .trust-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .partner-row{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .section{padding:64px 0}
  .span-6,.span-4,.span-8{grid-column:span 12}
  .card-wide{flex-direction:column}
  .card-wide .card-media{flex:none}
  .card-wide .card-media img{min-height:200px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero{padding:48px 0 44px}
  .hero-badges{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-btns .btn{width:100%}
  .news-wrap{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .partner-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-form{width:100%}
  .cta-form input{width:100%;min-width:0}
  .cta-form .btn{width:100%}
  .card-body{padding:18px}
  .faq-q{padding:16px 18px;font-size:16px}
  .faq-a-inner{padding:0 18px 18px}
  .faq-a-inner::before{left:18px}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:479px){
  body{font-size:15px}
  .brand-text{font-size:15px}
  .stat b{font-size:22px}
  .trust-item b{font-size:24px}
}

/* roulang page: category1 */
:root{
  --brand-600:#0B8C88;
  --brand-500:#0EA5A0;
  --brand-300:#6FD9CE;
  --brand-050:#E8F7F5;
  --ink-900:#0A2B2A;
  --ink-700:#2C4746;
  --ink-500:#5C7370;
  --accent-500:#FF8A3D;
  --accent-600:#E8721F;
  --accent-050:#FFF1E6;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#072A29;
  --grad-brand:linear-gradient(120deg,#0B8C88 0%,#12B3AC 42%,#7FE0C8 100%);
  --grad-cta:linear-gradient(135deg,#FF8A3D,#FFB25B);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,43,42,.05),0 2px 8px rgba(10,43,42,.05);
  --sh-2:0 10px 24px rgba(10,43,42,.08);
  --sh-3:0 18px 44px rgba(10,43,42,.12);
  --sh-brand:0 12px 28px rgba(14,165,160,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;line-height:1.3}
p{margin:0;max-width:42em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:var(--sh-brand);
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15.5px;
  color:var(--ink-700);border-radius:var(--r-sm);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--grad-brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;width:208px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search svg{width:16px;height:16px;flex:0 0 16px;fill:none;stroke:var(--ink-500);stroke-width:1.8;stroke-linecap:round}
.nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink-900)}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.btn-text{font-size:15px;color:var(--ink-700);padding:6px 4px;white-space:nowrap}
.btn-text:hover{color:var(--brand-600)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;place-items:center;flex:0 0 42px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-mask{
  position:fixed;inset:0;background:rgba(7,42,41,.45);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:85;
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);border:1.5px solid transparent;
  font-size:15.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),filter .2s var(--ease);
}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(255,138,61,.28)}
.btn-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 12px 26px rgba(255,138,61,.34)}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--brand-500);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{background:transparent;border-color:var(--line);color:#A9B7B5;cursor:not-allowed;box-shadow:none}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:56px 0 52px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.86)}
.page-hero .container{position:relative;z-index:1}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--brand-050);border:1px solid #CDEDE8;
  color:var(--brand-600);font-size:13.5px;font-weight:600;
}
.badge-pill i{width:7px;height:7px;border-radius:50%;background:var(--accent-500);display:inline-block}
.page-hero h1{
  margin:18px 0 14px;font-size:clamp(30px,4.2vw,46px);line-height:1.22;font-weight:700;max-width:22em;
}
.page-hero .lead{font-size:17px;line-height:1.8;color:var(--ink-700);max-width:38em}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-500);margin-bottom:16px}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-600)}
.crumb span.dot{color:#B9C9C7}

/* ---------- hero data row ---------- */
.data-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.data-item{
  background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.data-item b{
  display:block;font-size:30px;line-height:1.1;font-weight:700;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.data-item b em{font-style:normal;font-size:14px;font-weight:600;margin-left:3px}
.data-item span{display:block;margin-top:6px;font-size:13px;color:var(--ink-500);line-height:1.6}

/* ---------- layout with sticky toc ---------- */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;align-items:start}
.toc{position:sticky;top:96px}
.toc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:20px}
.toc-title{font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--ink-500);text-transform:uppercase;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column}
.toc-list a{
  position:relative;display:block;padding:11px 12px 11px 18px;border-radius:var(--r-sm);
  font-size:15px;color:var(--ink-700);transition:background-color .2s var(--ease),color .2s var(--ease);
}
.toc-list a::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--grad-brand);transition:height .22s var(--ease);
}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-600)}
.toc-list a.is-current{background:var(--brand-050);color:var(--brand-600);font-weight:600}
.toc-list a.is-current::before{height:18px}
.toc-note{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-500);line-height:1.7}
.toc-note a{display:inline-block;margin-top:8px;font-weight:600}

/* ---------- section head ---------- */
.section-head{margin-bottom:32px}
.section-tag{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-600);font-size:12.5px;font-weight:600;letter-spacing:.5px;
}
.section-head h2{margin:14px 0 12px;font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.section-head p{color:var(--ink-500);font-size:15.5px}
.block + .block{margin-top:64px}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:19px;line-height:1.4;font-weight:600;margin:14px 0 10px}
.card p{font-size:14.5px;color:var(--ink-500);line-height:1.8}
.chip{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-600);font-size:12px;font-weight:600;
}
.chip-accent{background:var(--accent-050);color:var(--accent-600)}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-500);
}
.card-foot .arrow{font-size:16px;color:var(--brand-500);transition:transform .3s var(--ease)}
.card:hover .card-foot .arrow{transform:translateX(4px)}
.card-img{border-radius:var(--r-md);overflow:hidden;margin-bottom:16px;aspect-ratio:16/9;background:#EEF4F3}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-img img{transform:scale(1.04)}
.card-list{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.card-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-700);line-height:1.75}
.card-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-300);
}

/* ---------- steps ---------- */
.step-list{display:flex;flex-direction:column;gap:20px;counter-reset:step}
.step{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{
  font-size:34px;font-weight:700;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-500);line-height:1.8}
.step-media{margin-top:14px;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/7;background:#EEF4F3}
.step-media img{width:100%;height:100%;object-fit:cover}

/* ---------- status table-ish ---------- */
.status-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.status-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.status-card .dotline{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--ink-900)}
.status-card .dotline i{width:10px;height:10px;border-radius:50%;display:inline-block}
.dot-ok{background:var(--brand-500)}
.dot-wait{background:var(--accent-500)}
.dot-bad{background:#C4705C}
.status-card p{margin-top:10px;font-size:14px;color:var(--ink-500);line-height:1.8}
.status-card ul{margin-top:12px;display:flex;flex-direction:column;gap:7px}
.status-card ul li{font-size:13.5px;color:var(--ink-700);padding-left:14px;position:relative}
.status-card ul li::before{content:"·";position:absolute;left:2px;color:var(--brand-500);font-weight:700}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);transition:background-color .2s var(--ease);
}
.faq-q:hover{background:#FAFDFC}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--brand-300);
  color:var(--brand-600);display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .25s var(--ease),background-color .25s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:var(--brand-050)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease),padding .3s var(--ease);
  padding:0 24px 0 24px;
}
.faq-item.is-open .faq-a{max-height:420px;padding:0 24px 22px 24px}
.faq-a p{
  font-size:14.5px;color:var(--ink-700);line-height:1.85;
  border-left:4px solid transparent;
  border-image:linear-gradient(180deg,#0B8C88,#7FE0C8) 1;
  padding-left:14px;max-width:46em;
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-brand);
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(#ffffff 1px,transparent 1px);
  background-size:16px 16px;pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.9);margin-top:10px;font-size:15px;position:relative;z-index:1}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--brand-600);border-color:#fff}
.btn-white:hover{background:#F2FBF9;color:var(--brand-600);transform:translateY(-2px)}

/* ---------- newsletter ---------- */
.subscribe{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center;
}
.subscribe h3{font-size:20px;margin-bottom:10px}
.subscribe p{font-size:14.5px;color:var(--ink-500)}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 220px;height:48px;padding:0 16px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--ink-500)}
.sub-form input:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.sub-hint{font-size:13px;color:var(--ink-500);margin-top:10px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--deep);color:#A9C4C1;margin-top:88px;
  border-top:4px solid transparent;
  border-image:linear-gradient(90deg,#0B8C88,#7FE0C8,#FFB25B) 1;
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding:56px 0 36px;
}
.footer-col h4{color:#EAF6F4;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;color:#A9C4C1;font-size:14.5px;padding:5px 0}
.footer-col a:hover{color:#7FE0C8}
.footer-col p{font-size:14px;line-height:1.85;color:#A9C4C1;margin-bottom:8px;max-width:30em}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#EAF6F4;font-size:17px}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-row a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(127,224,200,.28);
  display:grid;place-items:center;padding:0;
}
.social-row a:hover{border-color:#7FE0C8;background:rgba(127,224,200,.1)}
.social-row svg{width:17px;height:17px;fill:none;stroke:#A9C4C1;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.social-row a:hover svg{stroke:#7FE0C8}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(127,224,200,.16);
  font-size:13.5px;color:#7E9C99;
}
.footer-bottom a{color:#A9C4C1}
.footer-bottom a:hover{color:#7FE0C8}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-links{
    position:fixed;top:0;right:0;width:82%;max-width:360px;height:100vh;z-index:88;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 22px 28px;margin-left:0;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s var(--ease);box-shadow:var(--sh-3);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:16px 4px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .nav-link::after{display:none}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc-list a{padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-pill);font-size:14px}
  .toc-list a::before{display:none}
  .toc-list a.is-current{border-color:var(--brand-300)}
  .toc-note{display:none}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .data-row{grid-template-columns:repeat(2,1fr)}
  .subscribe{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  .nav-inner{height:64px;gap:12px}
  .brand-text{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .status-list{grid-template-columns:1fr}
  .page-hero{padding:40px 0}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .page-hero .lead{font-size:15.5px}
  .step{grid-template-columns:1fr;gap:12px;padding:20px}
  .step-num{font-size:28px}
  .btn{height:46px;padding:0 20px;font-size:15px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1 1 100%}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a{padding:0 18px}
  .faq-item.is-open .faq-a{padding:0 18px 18px 18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .section{padding:44px 0}
  .data-row{grid-template-columns:1fr;gap:12px}
  .data-item b{font-size:26px}
  .footer-top{grid-template-columns:1fr}
  .card{padding:20px}
  .subscribe{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand-600:#0B8C88;
  --brand-500:#0EA5A0;
  --brand-300:#6FD9CE;
  --brand-050:#E8F7F5;
  --ink-900:#0A2B2A;
  --ink-700:#2C4746;
  --ink-500:#5C7370;
  --accent-500:#FF8A3D;
  --accent-600:#E8721F;
  --accent-050:#FFF1E6;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#072A29;
  --grad-brand:linear-gradient(120deg,#0B8C88 0%,#12B3AC 42%,#7FE0C8 100%);
  --grad-cta:linear-gradient(135deg,#FF8A3D,#FFB25B);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,43,42,.05),0 2px 8px rgba(10,43,42,.05);
  --sh-2:0 10px 24px rgba(10,43,42,.08);
  --sh-3:0 18px 44px rgba(10,43,42,.12);
  --sh-brand:0 12px 28px rgba(14,165,160,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none}
a:hover{color:var(--brand-500)}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-head p{margin-top:10px;color:var(--ink-500);font-size:15px;max-width:42em}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);border-bottom:1.5px solid transparent;transition:.2s}
.link-more:hover{border-color:var(--brand-600);color:var(--brand-600)}
.link-more svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* 顶部阅读进度 */
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad-brand);z-index:120;transition:width .1s linear}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:var(--sh-brand);flex:0 0 auto}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{position:relative;padding:8px 12px;font-size:15.5px;color:var(--ink-700);border-radius:var(--r-sm);transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);transition:.2s ease}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-500);stroke-width:1.8;stroke-linecap:round}
.nav-search input{width:140px;border:0;outline:none;background:transparent;font-size:14px;color:var(--ink-900)}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.btn-text{font-size:15px;color:var(--ink-700);padding:6px 4px;transition:color .2s ease}
.btn-text:hover{color:var(--brand-600)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s ease,background .18s ease,color .18s ease;
}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:var(--sh-brand)}
.btn-cta:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 16px 34px rgba(232,114,31,.28);color:#fff}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border:1.5px solid var(--brand-500);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-light{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px rgba(7,42,41,.16)}
.btn-light:hover{background:#F2FBF9;color:var(--brand-600);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{background:var(--line);color:#A9B7B5;box-shadow:none;cursor:not-allowed;transform:none}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;place-items:center;cursor:pointer}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-backdrop{position:fixed;inset:0;z-index:58;background:rgba(7,42,41,.45);opacity:0;visibility:hidden;transition:.25s ease}
.nav-backdrop.is-open{opacity:1;visibility:visible}

/* 面包屑 + 文章头部 */
.article-hero{
  position:relative;
  padding:36px 0 4px;
  background:
    radial-gradient(560px 260px at 12% 0%,rgba(111,217,206,.16),transparent 70%),
    radial-gradient(480px 240px at 92% 10%,rgba(255,178,91,.12),transparent 70%),
    var(--bg);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-500)}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .sep{color:#B7C6C3}
.crumbs .current{color:var(--brand-600);font-weight:600}
.article-head{max-width:860px;padding:18px 0 0}
.article-head h1{font-size:clamp(26px,3.6vw,44px);line-height:1.3;margin-bottom:18px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-500)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row svg{width:15px;height:15px;fill:none;stroke:var(--brand-500);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.meta-chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-600);font-size:12.5px;font-weight:600}
.cover-wrap{margin-top:28px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:#fff}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* 正文布局 */
.article-main{padding:48px 0 8px}
.article-card{
  max-width:780px;margin:0 auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px 44px;
}
.prose{font-size:16.5px;line-height:1.95;color:var(--ink-700)}
.prose>*+*{margin-top:1em}
.prose p{margin:0 0 1.1em;max-width:42em}
.prose h2{
  position:relative;font-size:clamp(21px,2.2vw,25px);margin:38px 0 16px;padding-left:16px;
}
.prose h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:5px;border-radius:3px;background:var(--grad-brand)}
.prose h3{font-size:19.5px;margin:28px 0 12px;color:var(--ink-900)}
.prose h4{font-size:17px;margin:22px 0 10px;color:var(--ink-900)}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.25em}
.prose li{margin-bottom:.55em}
.prose li::marker{color:var(--brand-500)}
.prose strong{color:var(--ink-900)}
.prose blockquote{
  margin:1.4em 0;padding:18px 22px;border-left:4px solid var(--brand-500);
  background:var(--brand-050);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-700);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-md);margin:1.4em 0 .6em;box-shadow:var(--sh-1)}
.prose figure{margin:1.4em 0}
.prose figcaption{font-size:13px;color:var(--ink-500);text-align:center}
.prose code{background:#EFF4F3;color:var(--ink-900);padding:2px 7px;border-radius:6px;font-size:14px}
.prose pre{background:var(--deep);color:#CFF1EC;padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;font-size:14px;line-height:1.7}
.prose pre code{background:transparent;color:inherit;padding:0}
.prose hr{border:0;height:1px;background:var(--line);margin:2em 0}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;font-size:14.5px}
.prose th,.prose td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.prose th{background:var(--brand-050);color:var(--ink-900);font-weight:600}
.prose tr:last-child td{border-bottom:0}
.empty-state{padding:36px 0;text-align:center}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;border:1px solid var(--line);display:grid;place-items:center;background:var(--brand-050)}
.empty-state .empty-icon svg{width:26px;height:26px;fill:none;stroke:var(--brand-600);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--ink-500);font-size:15px;margin-bottom:20px}

/* 标签与分享 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-600);font-size:13px;font-weight:600;transition:.2s ease}
.tag:hover{background:#D5F2EE;color:var(--brand-600)}
.share-row{display:flex;align-items:center;gap:10px;margin-left:auto}
.share-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;color:var(--ink-500);cursor:pointer;transition:.2s var(--ease)}
.share-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.share-btn:hover{color:var(--brand-600);border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* 上一篇 / 下一篇 */
.pn-row{max-width:780px;margin:28px auto 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}
.pn-link{flex:1 1 240px;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;transition:.2s var(--ease)}
.pn-link span{display:block;font-size:12.5px;color:var(--ink-500);margin-bottom:6px}
.pn-link strong{display:block;font-size:15.5px;color:var(--ink-900);font-weight:600}
.pn-link:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);transform:translateY(-2px)}
.pn-link:hover strong{color:var(--brand-600)}
.back-col{max-width:780px;margin:20px auto 0;font-size:15px}
.back-col a{border-bottom:1.5px solid transparent;transition:.2s}
.back-col a:hover{border-color:var(--brand-600)}

/* 相关推荐 */
.related{padding:72px 0 96px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rcard{
  position:relative;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s ease;
}
.rcard::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D3E7E4}
.rcard:hover::before{transform:scaleX(1)}
.rcard-thumb{overflow:hidden;background:#EFF4F3}
.rcard-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.rcard:hover .rcard-thumb img{transform:scale(1.04)}
.rcard-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{font-size:17.5px;line-height:1.5}
.rcard-body p{font-size:14px;color:var(--ink-500);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500)}
.rcard-foot svg{width:16px;height:16px;fill:none;stroke:var(--brand-600);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rcard:hover .rcard-foot svg{transform:translateX(3px)}
.rcard-foot .date{color:var(--ink-500)}

/* CTA 横幅 */
.cta-wrap{padding:0 0 88px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 20px 46px rgba(11,140,136,.22);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(#ffffff 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-band h2{position:relative;z-index:1;color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{position:relative;z-index:1;color:rgba(255,255,255,.9);font-size:15px;margin-top:10px;max-width:44em}
.cta-band .btn{position:relative;z-index:1}

/* 页脚 */
.site-footer{margin-top:8px;background:var(--deep);color:#A9C4C1;padding:64px 0 28px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#A9C4C1;margin-bottom:10px;max-width:34em}
.footer-col a{display:block;font-size:14.5px;color:#A9C4C1;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#7FE0C8}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-row a{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;padding:0;transition:.2s ease}
.social-row a svg{width:17px;height:17px;fill:none;stroke:#A9C4C1;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.social-row a:hover{border-color:#7FE0C8;transform:translateY(-2px)}
.social-row a:hover svg{stroke:#7FE0C8}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:13.5px;color:#8FB0AD}
.footer-bottom a{color:#8FB0AD}
.footer-bottom a:hover{color:#7FE0C8}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 22px}
}
@media (max-width:1023px){
  .nav-toggle{display:grid}
  .nav-search{display:none}
  .nav-links{
    position:fixed;top:0;right:0;z-index:70;
    width:82%;max-width:360px;height:100vh;margin:0;
    padding:84px 20px 28px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;box-shadow:var(--sh-3);
    transform:translateX(102%);transition:transform .28s var(--ease);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:none}
  .nav-link{padding:16px 4px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--brand-050);border-radius:var(--r-sm);padding-left:12px}
  body.nav-open{overflow:hidden}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .article-card{padding:32px 28px}
  .section{padding:64px 0}
  .related{padding:56px 0 72px}
  .cta-band{padding:36px 32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  body{font-size:15.5px}
  .nav-inner{height:64px}
  .brand{font-size:16px}
  .nav-search input{width:110px}
  .grid-3{grid-template-columns:1fr}
  .section{padding:48px 0}
  .article-card{padding:24px 20px;border-radius:var(--r-md)}
  .prose{font-size:16px}
  .prose p{max-width:none}
  .article-head h1{font-size:clamp(24px,6.4vw,32px)}
  .btn{width:100%}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 22px}
  .cta-band .btn{width:100%}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column}
  .pn-link{flex:1 1 100%}
  .share-row{margin-left:0;width:100%}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .meta-row{gap:8px 14px;font-size:13px}
  .article-card{padding:20px 16px}
  .section-head h2{font-size:22px}
}

/* roulang page: category3 */
:root{
  --brand-600:#0B8C88;
  --brand-500:#0EA5A0;
  --brand-300:#6FD9CE;
  --brand-050:#E8F7F5;
  --ink-900:#0A2B2A;
  --ink-700:#2C4746;
  --ink-500:#5C7370;
  --accent-500:#FF8A3D;
  --accent-600:#E8721F;
  --accent-050:#FFF1E6;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#072A29;
  --grad-brand:linear-gradient(120deg,#0B8C88 0%,#12B3AC 42%,#7FE0C8 100%);
  --grad-cta:linear-gradient(135deg,#FF8A3D,#FFB25B);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,43,42,.05),0 2px 8px rgba(10,43,42,.05);
  --sh-2:0 10px 24px rgba(10,43,42,.08);
  --sh-3:0 18px 44px rgba(10,43,42,.12);
  --sh-brand:0 12px 28px rgba(14,165,160,.22);
  --gap-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:0;}
h1{font-size:clamp(30px,4.2vw,54px);line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.45;font-weight:600;}
p{margin:0 0 1em;max-width:42em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-600);text-decoration:none;text-underline-offset:4px;}
a:hover{text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0 0 1em;padding-left:1.15em;}
li{margin:.35em 0;}
button{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--gap-section) 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:600;line-height:1.6;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--grad-brand);}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head p{margin:8px 0 0;color:var(--ink-500);font-size:15px;}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);font-weight:700;font-size:17px;}
.brand:hover{text-decoration:none;color:var(--brand-600);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 6px 14px rgba(14,165,160,.28);
}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:var(--r-sm);
  color:var(--ink-700);font-size:16px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);text-decoration:none;background:var(--brand-050);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--ink-500);stroke-width:1.7;stroke-linecap:round;}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink-700);}
.nav-search input::placeholder{color:var(--ink-500);}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15);}
.btn-text{color:var(--ink-700);font-size:15px;padding:6px 4px;border-radius:var(--r-sm);transition:color .2s ease;}
.btn-text:hover{color:var(--brand-600);text-decoration:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-size:16px;font-weight:600;line-height:1;
  border-radius:var(--r-pill);padding:0 26px;height:48px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:var(--sh-brand);}
.btn-cta:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 16px 32px rgba(232,114,31,.28);text-decoration:none;color:#fff;}
.btn-cta:active{transform:translateY(1px);}
.btn-ghost{background:var(--surface);color:var(--brand-600);border:1.5px solid var(--brand-500);}
.btn-ghost:hover{background:var(--brand-050);text-decoration:none;transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{border:1px solid var(--line);background:#F2F6F5;color:#A9B7B5;box-shadow:none;cursor:not-allowed;transform:none;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--ink-900);content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer-search{display:none;}

/* ---------- breadcrumb ---------- */
.crumb-wrap{background:var(--surface);border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:14px;color:var(--ink-500);}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);text-decoration:none;}
.crumb .sep{color:#B7C6C4;}

/* ---------- mini hero ---------- */
.hero-mini{
  position:relative;overflow:hidden;
  min-height:270px;display:flex;align-items:center;
  background-image:linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.9)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.hero-mini::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(11,140,136,.06) 1px,transparent 1px);
  background-size:16px 16px;pointer-events:none;
}
.hero-mini .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.hero-mini h1{margin:16px 0 14px;max-width:20em;}
.hero-mini .lead{font-size:17px;color:var(--ink-700);max-width:44em;}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--ink-700);
}
.chip-strong{background:var(--accent-050);border-color:#FFE0C7;color:var(--accent-600);font-weight:600;}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}
.main-col{min-width:0;}
.side-col{position:sticky;top:96px;display:grid;gap:20px;}

.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
.panel + .panel{margin-top:24px;}
.panel-title{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.panel-title .bar{width:4px;height:22px;border-radius:4px;background:var(--grad-brand);}

/* media rows */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;}
.media-row.reverse .media-figure{order:2;}
.media-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:var(--surface);
}
.media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.media-figure:hover img{transform:scale(1.04);}
.media-copy h3{margin-bottom:12px;}
.media-copy p{font-size:15.5px;}

/* check list */
.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;margin:0;font-size:15px;color:var(--ink-700);}
.check-list .ic{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--brand-050);border:1px solid #CDEAE6;
  display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-list .ic svg{width:12px;height:12px;fill:none;stroke:var(--brand-600);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* steps */
.steps{display:grid;gap:0;counter-reset:step;margin-top:24px;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:20px 0;border-top:1px dashed var(--line);
}
.step:first-child{border-top:0;padding-top:6px;}
.step-num{
  font-size:30px;font-weight:700;line-height:1.2;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h4{margin-bottom:6px;}
.step p{font-size:15px;margin:0;}

/* quick links side */
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease;
}
.quick-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.quick-card h4{margin-bottom:6px;}
.quick-card .hint{font-size:13.5px;color:var(--ink-500);margin-bottom:14px;}
.quick-list{list-style:none;padding:0;margin:0;display:grid;gap:6px;}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:var(--r-md);border:1px solid var(--line);
  background:#FBFDFC;color:var(--ink-900);font-size:15px;font-weight:600;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.quick-list a:hover{background:var(--brand-050);border-color:#BFE6E1;color:var(--brand-600);text-decoration:none;transform:translateX(3px);}
.quick-list .arrow{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.stat-card{background:var(--deep);border-radius:var(--r-lg);padding:22px;color:#A9C4C1;border:1px solid rgba(127,224,200,.18);}
.stat-card h4{color:#fff;margin-bottom:10px;}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px;}
.stat-num{font-size:30px;font-weight:700;line-height:1.2;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-label{font-size:12.5px;line-height:1.7;}
.stat-card p{font-size:13.5px;color:#A9C4C1;margin:12px 0 0;}

/* callout */
.callout{
  border-left:4px solid transparent;
  border-image:var(--grad-brand) 1;
  background:var(--brand-050);border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;margin:24px 0;font-size:15px;color:var(--ink-700);
}
.callout strong{color:var(--ink-900);}

/* table-like compare */
.compare{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;margin-top:20px;}
.compare-row{display:grid;grid-template-columns:150px 1fr 1fr;gap:1px;background:var(--line);}
.compare-row > div{background:var(--surface);padding:14px 16px;font-size:14.5px;}
.compare-row.head > div{background:#F2F8F7;font-weight:600;color:var(--ink-900);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-q:hover{color:var(--brand-600);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;transition:transform .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:opacity .25s ease;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);border-color:var(--brand-300);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{
  padding:0 24px 22px 24px;border-left:4px solid transparent;
  border-image:var(--grad-brand) 1;margin-left:24px;padding-left:18px;
  font-size:15.5px;color:var(--ink-700);
}
.faq-item.is-open .faq-a{max-height:520px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;box-shadow:var(--sh-3);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:14px 14px;pointer-events:none;
}
.cta-band h2{color:#fff;position:relative;z-index:2;max-width:22em;}
.cta-band p{color:rgba(255,255,255,.92);position:relative;z-index:2;max-width:36em;margin-top:10px;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-light{background:#fff;color:var(--brand-600);}
.cta-band .btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(7,42,41,.2);text-decoration:none;color:var(--brand-600);}
.cta-band .btn-line{background:transparent;border:1.5px solid rgba(255,255,255,.75);color:#fff;}
.cta-band .btn-line:hover{background:rgba(255,255,255,.14);text-decoration:none;color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#A9C4C1;margin-top:var(--gap-section);position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,#7FE0C8,transparent);opacity:.6;}
.footer-top{display:grid;grid-template-columns:1.4fr 0.8fr 0.9fr 1fr;gap:32px;padding:56px 0 40px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col a{display:block;color:#A9C4C1;font-size:14.5px;padding:5px 0;transition:color .2s ease;}
.footer-col a:hover{color:#7FE0C8;text-decoration:none;}
.footer-col p{font-size:14px;color:#A9C4C1;margin:0 0 8px;max-width:26em;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{color:#fff;font-weight:700;font-size:17px;}
.social-row{display:flex;gap:10px;margin-top:16px;}
.social-row a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(127,224,200,.28);
  display:inline-flex;align-items:center;justify-content:center;padding:0;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.social-row a:hover{background:rgba(127,224,200,.12);border-color:#7FE0C8;transform:translateY(-2px);}
.social-row svg{width:17px;height:17px;fill:none;stroke:#A9C4C1;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.social-row a:hover svg{stroke:#7FE0C8;}
.footer-bottom{
  border-top:1px solid rgba(127,224,200,.16);
  padding:18px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8FAFAC;
}
.footer-bottom a{color:#A9C4C1;}
.footer-bottom a:hover{color:#7FE0C8;text-decoration:none;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-search{width:170px;}
}
@media (max-width:1023px){
  :root{--gap-section:64px;}
  .layout{grid-template-columns:1fr;gap:36px;}
  .side-col{position:static;}
  .nav-links,.nav-search,.btn-text{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-links.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;top:0;right:0;height:100vh;width:82%;max-width:360px;
    background:var(--surface);padding:80px 20px 24px;
    box-shadow:-18px 0 44px rgba(7,42,41,.18);z-index:90;overflow-y:auto;
  }
  .nav-links.is-open .nav-link{padding:15px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:16px;}
  .nav-links.is-open .nav-link::after{display:none;}
  .nav-links.is-open .nav-link.is-active{color:var(--brand-600);}
  .nav-links.is-open .drawer-search{
    display:flex;margin:18px 0 12px;width:100%;
  }
  .nav-mask{
    position:fixed;inset:0;background:rgba(7,42,41,.45);z-index:80;
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  }
  .nav-mask.is-open{opacity:1;visibility:visible;}
  body.nav-locked{overflow:hidden;}
  .hero-mini{min-height:240px;}
  .media-row{grid-template-columns:1fr;gap:22px;}
  .media-row.reverse .media-figure{order:0;}
  .footer-top{grid-template-columns:1fr 1fr;gap:24px;padding:44px 0 32px;}
  .compare-row{grid-template-columns:120px 1fr 1fr;}
}
@media (max-width:767px){
  :root{--gap-section:48px;}
  .container{padding:0 18px;}
  .panel{padding:20px;}
  .hero-mini .container{padding-top:40px;padding-bottom:40px;}
  .hero-mini .lead{font-size:15.5px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-lg);}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a-inner{margin-left:16px;padding-left:14px;padding-right:18px;}
  .compare-row{grid-template-columns:1fr;gap:0;}
  .compare-row > div{padding:12px 14px;}
  .compare-row > div:first-child{background:#F2F8F7;font-weight:600;color:var(--ink-900);}
  .stat-row{grid-template-columns:1fr 1fr;}
}
@media (max-width:519px){
  h1{font-size:30px;}
  .footer-top{grid-template-columns:1fr;}
  .step{grid-template-columns:44px 1fr;gap:14px;}
  .step-num{font-size:24px;}
  .brand-text{font-size:15.5px;}
  .hero-meta{gap:8px;}
  .chip{font-size:12.5px;}
}

/* roulang page: category2 */
:root{
  --brand-600:#0B8C88;
  --brand-500:#0EA5A0;
  --brand-300:#6FD9CE;
  --brand-050:#E8F7F5;
  --ink-900:#0A2B2A;
  --ink-700:#2C4746;
  --ink-500:#5C7370;
  --accent-500:#FF8A3D;
  --accent-600:#E8721F;
  --accent-050:#FFF1E6;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E2EBE9;
  --deep:#072A29;
  --grad-brand:linear-gradient(120deg,#0B8C88 0%,#12B3AC 42%,#7FE0C8 100%);
  --grad-cta:linear-gradient(135deg,#FF8A3D,#FFB25B);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,43,42,.05),0 2px 8px rgba(10,43,42,.05);
  --sh-2:0 10px 24px rgba(10,43,42,.08);
  --sh-3:0 18px 44px rgba(10,43,42,.12);
  --sh-brand:0 12px 28px rgba(14,165,160,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;font-weight:700}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:var(--sh-brand);flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  color:var(--ink-700);font-size:15.5px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-050)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-500);stroke-width:1.8;stroke-linecap:round}
.nav-search input{border:0;outline:0;background:transparent;width:150px;font-size:14px;color:var(--ink-700)}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(14,165,160,.15)}
.btn-text{color:var(--ink-700);font-size:15px;padding:8px 4px;border-radius:8px}
.btn-text:hover{color:var(--brand-600)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-weight:600;font-size:16px;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:var(--sh-brand)}
.btn-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 14px 30px rgba(232,114,31,.28)}
.btn-cta:active{transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--brand-500);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600)}
.btn-sm{height:40px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{background:#fff;border-color:var(--line);color:#A9B7B5;box-shadow:none;cursor:not-allowed;transform:none}
.nav-toggle{
  display:none;position:relative;width:42px;height:42px;flex:0 0 auto;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;width:18px;height:2px;border-radius:2px;background:var(--ink-700);display:block}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-700);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;z-index:90;
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;box-shadow:var(--sh-3);
  transform:translateX(100%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:20px;line-height:1;color:var(--ink-700);
}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;margin-bottom:10px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
}
.drawer-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-500);stroke-width:1.8;stroke-linecap:round}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:15px}
.drawer-link{
  padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--ink-900);font-weight:600;font-size:16px;
}
.drawer-link.is-active{color:var(--brand-600)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.drawer-actions .btn{width:100%}
.nav-mask{
  position:fixed;inset:0;z-index:85;background:rgba(7,42,41,.45);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}
body.is-locked{overflow:hidden}

/* ---------- 页面小头图 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 60px;
  background-color:var(--bg);
  background-image:linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,255,255,.86)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:auto -120px -160px auto;width:420px;height:420px;
  background:radial-gradient(circle,rgba(111,217,206,.18),rgba(111,217,206,0) 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:840px}
.crumbs{font-size:13.5px;color:var(--ink-500);margin-bottom:16px}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs span{margin:0 6px;color:#A9B7B5}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-050);border:1px solid rgba(14,165,160,.22);
  color:var(--brand-600);font-size:13.5px;font-weight:600;margin-bottom:18px;
}
.hero-badge::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-500);
  box-shadow:0 0 0 4px rgba(255,138,61,.18);
}
.page-hero h1{margin-bottom:16px;max-width:19em}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:38em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-600);margin-bottom:12px;
}
.eyebrow::after{content:"";display:block;width:42px;height:3px;border-radius:3px;background:var(--grad-brand);margin-top:8px}
.section-head p{margin-top:14px;color:var(--ink-500);font-size:16px;max-width:42em}

/* ---------- 数据徽章 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat-value{
  font-size:32px;font-weight:700;line-height:1.2;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-value small{font-size:14px;font-weight:600;margin-left:4px}
.stat-label{display:block;font-size:13.5px;color:var(--ink-500);margin-top:6px}

/* ---------- 入口清单行 ---------- */
.entry-list{display:grid;gap:14px}
.entry-row{
  display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.entry-row:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,165,160,.3)}
.entry-index{
  width:52px;height:52px;border-radius:16px;background:var(--brand-050);
  display:grid;place-items:center;font-size:18px;font-weight:700;color:var(--brand-600);
}
.entry-body h3{margin-bottom:6px;font-size:18px}
.entry-body p{font-size:14.5px;color:var(--ink-500);max-width:52em}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-600);
  font-size:12.5px;font-weight:600;white-space:nowrap;
}
.chip--accent{background:var(--accent-050);color:var(--accent-600)}

/* ---------- 步骤流 ---------- */
.step-flow{position:relative;display:grid;gap:36px;margin-top:10px}
.step-flow::before{
  content:"";position:absolute;left:37px;top:48px;bottom:48px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(111,217,206,.85),rgba(111,217,206,.08));
}
.step-row{display:grid;grid-template-columns:76px minmax(0,1fr);gap:26px;align-items:start;position:relative}
.step-num{
  position:relative;z-index:1;width:76px;height:76px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-300);box-shadow:var(--sh-1);
  display:grid;place-items:center;
}
.step-num span{
  font-size:26px;font-weight:700;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step-card{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-card.is-flip .step-media{order:-1}
.step-text h3{margin:12px 0 10px}
.step-text p{font-size:15.5px;color:var(--ink-700)}
.step-points{margin-top:14px;display:grid;gap:8px}
.step-points li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ink-500);
}
.step-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--grad-brand);
}
.step-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);
  background:linear-gradient(120deg,#E8F7F5,#F5F8F7);
  transition:transform .4s cubic-bezier(.22,.61,.36,1);
}
.step-card:hover .step-media img{transform:scale(1.04)}
.step-media{overflow:hidden;border-radius:var(--r-md)}

/* ---------- 核对要点 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
.check-card h3{margin-bottom:16px;display:flex;align-items:center;gap:10px}
.check-card h3::before{content:"";width:4px;height:20px;border-radius:3px;background:var(--grad-brand)}
.check-list{display:grid;gap:12px}
.check-list li{
  display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;
  font-size:14.5px;color:var(--ink-700);
}
.check-list li b{color:var(--ink-900);font-weight:600}
.check-list .dot{
  width:22px;height:22px;border-radius:50%;background:var(--brand-050);color:var(--brand-600);
  display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:4px;
}
.check-card--warn .dot{background:var(--accent-050);color:var(--accent-600)}

/* ---------- 三张小卡 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.mini-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.mini-card:hover::before{transform:scaleX(1)}
.mini-card h3{font-size:18px}
.mini-card p{font-size:14.5px;color:var(--ink-500)}
.mini-card .arrow{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  color:var(--brand-600);font-weight:600;font-size:14.5px;
}
.mini-card .arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease}
.mini-card:hover .arrow svg{transform:translateX(4px)}

/* ---------- CTA 横幅 ---------- */
.cta-section{padding:0 0 88px}
.cta-banner{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-xl);
  padding:46px 48px;color:#fff;box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:16px 16px;pointer-events:none;
}
.cta-banner h2{color:#fff;margin-bottom:12px}
.cta-banner p{color:rgba(255,255,255,.92);font-size:15.5px;max-width:34em}
.cta-form{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 200px;height:48px;padding:0 18px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.92);
  color:var(--ink-900);outline:0;font-size:15px;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.cta-form input::placeholder{color:var(--ink-500)}
.cta-form input:focus{border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.28)}
.cta-form .btn{background:#fff;color:var(--brand-600);height:48px}
.cta-form .btn:hover{background:#F3FFFD;color:var(--brand-600);transform:translateY(-2px)}
.cta-note{position:relative;z-index:1;margin-top:14px;font-size:13px;color:rgba(255,255,255,.85)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);color:#A9C4C1;padding:64px 0 28px;
  border-top:1px solid transparent;
  background-image:linear-gradient(var(--deep),var(--deep)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600}
.footer-col a,.footer-col p{display:block;color:#A9C4C1;font-size:14.5px;margin-bottom:10px}
.footer-col a:hover{color:#7FE0C8}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);
  display:grid;place-items:center;margin:0;transition:background .2s ease,border-color .2s ease;
}
.social-row a:hover{background:rgba(127,224,200,.12);border-color:rgba(127,224,200,.5)}
.social-row svg{width:18px;height:18px;fill:none;stroke:#A9C4C1;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.social-row a:hover svg{stroke:#7FE0C8}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:13.5px;color:#8FB0AD;
}
.footer-bottom a{color:#A9C4C1}
.footer-bottom a:hover{color:#7FE0C8}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .section{padding:76px 0}
  .cta-section{padding-bottom:76px}
}
@media (max-width:1023px){
  .nav-links,.nav-search,.nav-actions .btn-text{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:64px;gap:12px}
  .site-header.is-scrolled .nav-inner{height:58px}
  .section{padding:64px 0}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .mini-grid{grid-template-columns:1fr;gap:18px}
  .check-grid{grid-template-columns:1fr}
  .step-card{grid-template-columns:1fr;gap:22px}
  .step-card.is-flip .step-media{order:0}
  .cta-banner{grid-template-columns:1fr;gap:24px;padding:36px 32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-hero{padding:40px 0 44px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding:48px 0}
  .section-head{margin-bottom:26px}
  .entry-row{grid-template-columns:52px 1fr;gap:16px;padding:18px}
  .entry-tags{grid-column:2;justify-content:flex-start}
  .entry-index{width:46px;height:46px;border-radius:14px;font-size:16px}
  .step-flow::before{left:27px;top:40px;bottom:40px}
  .step-row{grid-template-columns:56px minmax(0,1fr);gap:16px}
  .step-num{width:56px;height:56px;border-width:2px}
  .step-num span{font-size:20px}
  .step-card{padding:20px;border-radius:var(--r-lg)}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-value{font-size:26px}
  .check-card{padding:22px}
  .cta-section{padding-bottom:48px}
  .cta-banner{padding:28px 22px;border-radius:var(--r-lg)}
  .footer-top{grid-template-columns:1fr;gap:24px;padding-bottom:28px}
  .social-row{margin-top:14px}
}
@media (max-width:479px){
  body{font-size:15.5px}
  .stat-grid{grid-template-columns:1fr}
  .hero-badge{font-size:12.5px}
  .btn{height:46px;font-size:15px}
}