/* roulang page: index */
:root{
  --brand-900:#0A251F;
  --brand-700:#14523F;
  --brand-500:#1E8A66;
  --brand-300:#5FD3A6;
  --accent-500:#FF7A45;
  --accent-100:#FFEDE3;
  --paper:#F7F5F0;
  --paper-2:#EDF2EE;
  --line:#DCE3DD;
  --ink-900:#14201C;
  --ink-600:#55635E;
  --ink-invert:#F2F7F3;
  --shadow-sm:0 2px 8px rgba(10,37,31,.06);
  --shadow-md:0 12px 28px rgba(10,37,31,.10);
  --shadow-lg:0 24px 60px rgba(10,37,31,.18);
  --grad-brand:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:var(--brand-900);color:var(--ink-invert)}
@media(max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
}
@media(max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
}

/* ---------- Logo ---------- */
.logo{display:inline-flex;align-items:center;gap:12px}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:19px;letter-spacing:-.02em;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.32);
}
.logo-text{font-size:21px;font-weight:800;letter-spacing:-.01em;line-height:1.2;white-space:nowrap}
@media(max-width:640px){
  .logo-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
  .logo-text{font-size:17px}
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:16px 0;background:transparent;border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease,border-color .3s ease;
  color:#fff;
}
.site-header.is-solid{
  padding:10px 0;
  background:rgba(247,245,240,.96);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-sm);
  color:var(--ink-900);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:16px;font-weight:600;line-height:1.4;
  color:rgba(255,255,255,.86);
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent-500);transition:width .26s ease;border-radius:2px;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{width:100%}
.nav-link.is-active{color:#fff}
.site-header.is-solid .nav-link{color:var(--ink-600)}
.site-header.is-solid .nav-link:hover{color:var(--brand-900)}
.site-header.is-solid .nav-link.is-active{color:var(--brand-900)}
.header-actions{display:flex;align-items:center;gap:18px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.35);background:transparent;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .22s ease,background .22s ease;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor}
.menu-toggle:hover{background:rgba(255,255,255,.12)}
.site-header.is-solid .menu-toggle{border-color:var(--line)}
.site-header.is-solid .menu-toggle:hover{background:var(--paper-2)}
@media(max-width:1023px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .link-arrow{display:none}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-primary{background:var(--accent-500);color:var(--brand-900);box-shadow:var(--shadow-sm)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--accent-100);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand-700);
  transition:color .2s ease;
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover{color:var(--brand-500)}
.link-arrow:hover svg{transform:translateX(4px)}
.site-header:not(.is-solid) .link-arrow{color:rgba(255,255,255,.9)}
.site-header:not(.is-solid) .link-arrow:hover{color:#fff}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:27px;padding:0 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.85;flex:0 0 auto}
.badge-soft{background:var(--paper-2);border:1px solid var(--line);color:var(--brand-700)}
.badge-dark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:var(--brand-300)}
.badge-accent{background:var(--accent-100);color:var(--brand-900)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);padding:150px 0 96px;min-height:660px;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  transition:background-image .5s ease;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,37,31,.95) 0%,rgba(10,37,31,.86) 38%,rgba(10,37,31,.42) 74%,rgba(10,37,31,.30) 100%);
}
.hero-overlay::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,37,31,.55) 0%,rgba(10,37,31,0) 26%,rgba(10,37,31,.42) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-content{max-width:730px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-title{
  font-size:clamp(32px,4.4vw,60px);
  line-height:1.12;font-weight:800;letter-spacing:-.02em;color:#fff;
  text-wrap:balance;
}
.hero-sub{
  margin-top:22px;max-width:600px;
  font-size:17px;line-height:1.85;color:rgba(242,247,243,.84);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
.hero-dots{position:absolute;right:32px;bottom:38px;z-index:3;display:flex;gap:10px}
.hero-dot{
  width:28px;height:4px;border-radius:999px;border:0;padding:0;
  background:rgba(255,255,255,.32);transition:width .25s ease,background .25s ease;
}
.hero-dot:hover{background:rgba(255,255,255,.6)}
.hero-dot.is-active{width:46px;background:var(--accent-500)}
@media(max-width:1024px){
  .hero{min-height:560px;padding:132px 0 76px}
  .hero-dots{right:24px;bottom:26px}
}
@media(max-width:768px){
  .hero{min-height:auto;padding:124px 0 64px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:15.5px;margin-top:18px}
  .hero-actions{margin-top:26px}
  .hero-stats{margin-top:28px}
  .hero-dots{position:static;margin-top:28px}
}

/* ---------- Section head ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-title{
  font-size:clamp(24px,3vw,38px);line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);
}
.section-dark .section-title{color:#fff}
.section-desc{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-600);max-width:640px}
.section-dark .section-desc{color:rgba(242,247,243,.7)}
.head-tools{display:flex;align-items:center;gap:14px}
.rail-nav{display:flex;gap:8px}
.rail-btn{
  width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.rail-btn:hover{background:var(--brand-700);color:#fff;border-color:var(--brand-700);transform:translateY(-1px)}
.rail-btn:active{transform:translateY(0)}
@media(max-width:640px){.rail-nav{display:none}}

/* ---------- Cards ---------- */
.card{
  position:relative;display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfd9d2}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(150deg,var(--brand-700),var(--brand-900))}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.thumb-shade{position:absolute;left:0;right:0;bottom:0;height:96px;background:linear-gradient(to top,rgba(10,37,31,.88),rgba(10,37,31,0));z-index:1}
.thumb-title{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  color:#fff;font-size:17px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 16px;
}
.meta-time{font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums}

/* ---------- Rail ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 16px;margin:0 -4px;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 280px;scroll-snap-align:start}
@media(max-width:1024px){.rail-item{flex:0 0 240px}}
@media(max-width:768px){.rail-item{flex:0 0 78vw}}
.rail-card{height:100%}
.rail-card .card-thumb{aspect-ratio:16/10}

/* ---------- Mixed grid ---------- */
.mixed-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.mixed-big{grid-column:span 7}
.mixed-side{grid-column:span 5;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.hero-card{
  position:relative;display:block;min-height:420px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
  transition:transform .24s ease,box-shadow .24s ease;
}
.hero-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.hero-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.hero-card:hover img{transform:scale(1.04)}
.hero-card-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:32px;
  background:linear-gradient(to top,rgba(10,37,31,.94) 12%,rgba(10,37,31,.62) 56%,rgba(10,37,31,0));
  color:#fff;
}
.hero-card-title{font-size:26px;font-weight:800;line-height:1.35;letter-spacing:-.01em;margin-top:14px}
.hero-card-desc{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(242,247,243,.82);max-width:44ch}
@media(max-width:1100px){
  .mixed-grid{grid-template-columns:1fr}
  .mixed-big,.mixed-side{grid-column:span 1}
  .mixed-side{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .hero-card{min-height:340px}
  .hero-card-title{font-size:21px}
  .hero-card-body{padding:24px}
}
@media(max-width:520px){
  .mixed-side{grid-template-columns:1fr}
}

/* ---------- CMS layout ---------- */
.cms-layout{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:start}
@media(max-width:1024px){.cms-layout{grid-template-columns:1fr;gap:32px}}
.list-stream{border-top:1px solid var(--line)}
.list-row{
  display:flex;gap:20px;align-items:flex-start;
  padding:20px 8px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
  border-radius:4px;
}
.list-row:hover{background:var(--paper-2)}
.list-row:hover .list-row-title{color:var(--brand-500)}
.list-thumb{
  flex:0 0 160px;width:160px;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
}
.list-thumb img{width:100%;height:100%;object-fit:cover}
.list-row-body{flex:1 1 auto;min-width:0}
.list-row-title{
  font-size:18px;font-weight:700;line-height:1.5;color:var(--brand-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.list-row-desc{
  margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-row-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:12px}
.row-arrow{font-size:13px;font-weight:700;color:var(--brand-500);display:inline-flex;align-items:center;gap:4px}
@media(max-width:640px){
  .list-row{gap:14px;padding:16px 4px}
  .list-thumb{flex:0 0 96px;width:96px;aspect-ratio:3/2}
  .list-row-title{font-size:16px}
  .list-row-desc{-webkit-line-clamp:2}
}

/* ---------- Sticky panel ---------- */
.sticky-panel{
  position:sticky;top:100px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;
}
.panel-title{font-size:18px;font-weight:700;color:var(--brand-900);padding-bottom:16px;border-bottom:1px solid var(--line)}
.rank-list{margin-top:6px}
.rank-row{
  display:flex;align-items:center;gap:16px;
  padding:16px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease,color .2s ease;
}
.rank-row:last-child{border-bottom:0;padding-bottom:0}
.rank-row:hover{background:var(--paper-2)}
.rank-row:hover .rank-title{color:var(--brand-500)}
.rank-num{
  font-size:26px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;color:var(--brand-300);flex:0 0 auto;
}
.rank-row:nth-child(2) .rank-num{color:#3FBF92}
.rank-row:nth-child(3) .rank-num{color:#7FC79A}
.rank-row:nth-child(4) .rank-num{color:#D79A6A}
.rank-row:nth-child(5) .rank-num{color:var(--accent-500)}
.rank-title{font-size:15px;font-weight:700;line-height:1.55;color:var(--brand-900);transition:color .2s ease}
.rank-time{font-size:12.5px;color:var(--ink-600);font-variant-numeric:tabular-nums;margin-top:4px}
.panel-foot{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}

/* ---------- Empty state ---------- */
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--paper-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-500);font-size:22px;font-weight:800;
}
.empty-state p{font-size:15px;color:var(--ink-600);margin-bottom:20px}

/* ---------- Zone cards ---------- */
.zone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:1024px){.zone-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media(max-width:520px){.zone-grid{grid-template-columns:1fr}}
.zone-card{display:flex;flex-direction:column;height:100%}
.zone-card .card-thumb{aspect-ratio:16/10}
.zone-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.zone-title{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--brand-900)}
.zone-desc{font-size:14px;line-height:1.75;color:var(--ink-600);flex:1 1 auto}
.zone-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px}

/* ---------- Stats ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{padding:8px 0}
.stat-num{
  font-size:40px;font-weight:800;line-height:1.1;letter-spacing:-.02em;
  color:var(--brand-300);font-variant-numeric:tabular-nums;
}
.stat-label{margin-top:10px;font-size:13px;line-height:1.7;color:rgba(242,247,243,.7)}
@media(max-width:768px){
  .stats-bar{grid-template-columns:1fr 1fr;gap:28px}
  .stat-num{font-size:34px}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{border-color:#cfd9d2}
.faq-item.is-open{box-shadow:var(--shadow-sm)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-500);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:12px 24px;background:none;border:0;
  font-size:17px;font-weight:700;line-height:1.55;color:var(--ink-900);text-align:left;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-500)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--brand-700);
  transition:transform .26s ease,background .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent-100);color:var(--brand-900);border-color:var(--accent-100)}
.faq-a{
  max-height:0;overflow:hidden;
  padding:0 24px;font-size:15px;line-height:1.9;color:var(--ink-600);
  transition:max-height .32s ease,padding .32s ease;
}
.faq-item.is-open .faq-a{max-height:420px;padding:0 24px 24px}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--grad-brand);color:#fff;
  padding:56px;display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;
}
.cta-banner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
}
.cta-title{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.3;letter-spacing:-.01em}
.cta-desc{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(242,247,243,.84);max-width:42ch}
.cta-form-wrap{position:relative;z-index:2}
.subscribe-form{display:flex;gap:12px}
.subscribe-input{
  flex:1 1 auto;min-width:0;height:48px;border-radius:14px;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.14);
  color:#fff;padding:0 16px;font-size:15px;line-height:1;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.subscribe-input::placeholder{color:rgba(242,247,243,.62)}
.subscribe-input:focus{
  outline:none;border-color:var(--brand-300);background:rgba(255,255,255,.2);
  box-shadow:0 0 0 3px rgba(95,211,166,.28);
}
.form-hint{margin-top:12px;font-size:13px;color:rgba(242,247,243,.72);line-height:1.7}
@media(max-width:900px){
  .cta-banner{grid-template-columns:1fr;padding:32px;gap:28px}
}
@media(max-width:520px){
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:var(--ink-invert);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px}
.footer-brand .logo-mark{box-shadow:inset 0 1px 0 rgba(255,255,255,.4)}
.footer-brand .logo-text{color:#fff}
.footer-text{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(242,247,243,.68);max-width:34ch}
.footer-addr{margin-top:14px;font-size:13px;color:rgba(242,247,243,.5);font-variant-numeric:tabular-nums}
.footer-col h3{font-size:14px;font-weight:700;color:var(--brand-300);margin-bottom:18px;letter-spacing:.02em}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(242,247,243,.7);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,247,243,.55);
}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:40px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:56px}
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(10,37,31,.55);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;width:320px;max-width:86vw;
  background:var(--paper);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  box-shadow:var(--shadow-lg);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
  transition:background .2s ease,color .2s ease;
}
.drawer-close:hover{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.drawer-links{display:flex;flex-direction:column;padding:16px 0}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 4px;font-size:16px;font-weight:600;color:var(--brand-900);
  border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease;
}
.drawer-links a:hover{color:var(--brand-500);padding-left:10px}
.drawer-links a.is-active{color:var(--brand-500)}
.drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-cta .btn{width:100%}

/* ---------- Utilities ---------- */
.tabular{font-variant-numeric:tabular-nums}

/* roulang page: article */
:root{
  --brand-900:#0A251F;
  --brand-700:#14523F;
  --brand-500:#1E8A66;
  --brand-300:#5FD3A6;
  --accent-500:#FF7A45;
  --accent-100:#FFEDE3;
  --paper:#F7F5F0;
  --paper-2:#EDF2EE;
  --line:#DCE3DD;
  --ink-900:#14201C;
  --ink-600:#55635E;
  --ink-invert:#F2F7F3;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-sm:0 2px 8px rgba(10,37,31,.06);
  --shadow-md:0 12px 28px rgba(10,37,31,.10);
  --shadow-lg:0 24px 60px rgba(10,37,31,.18);
  --grad-brand:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.page{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:19px;
  box-shadow:var(--shadow-sm);
}
.logo-text{font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--paper-2);border-color:var(--brand-300);}
.nav-toggle:active{transform:scale(.97);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:16px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,filter .18s ease,color .18s ease;
}
.btn-sm{height:44px;padding:0 22px;font-size:15px;}
.btn-primary{background:var(--accent-500);color:var(--brand-900);box-shadow:var(--shadow-sm);}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-ghost:hover{background:var(--accent-100);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:var(--accent-100);filter:brightness(.98);}
.btn-light{background:#fff;color:var(--brand-900);border-color:var(--line);}
.btn-light:hover{background:var(--paper-2);transform:translateY(-1px);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand-500);
  transition:color .2s ease;
}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover{color:var(--brand-700);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:var(--paper-2);border:1px solid var(--line);color:var(--brand-700);
}
.badge-accent{background:var(--accent-100);border-color:#FFD9C6;color:#B64117;}
.badge-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--paper);padding:22px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-600);}
.breadcrumb a{color:var(--ink-600);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb .sep{color:#A9B5AF;}
.breadcrumb .current{color:var(--ink-900);font-weight:600;max-width:min(60vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{background:var(--paper-2);border-bottom:1px solid var(--line);margin-top:22px;padding:52px 0 56px;}
.article-head-inner{max-width:820px;margin:0 auto;}
.article-title{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.22;font-weight:800;letter-spacing:-.02em;
  color:var(--brand-900);margin-top:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:13.5px;color:var(--ink-600);}
.article-meta .dot{color:#A9B5AF;}
.article-lead{margin-top:18px;font-size:16px;line-height:1.9;color:var(--ink-600);}

/* ---------- 正文 ---------- */
.article-main{padding:56px 0 8px;}
.article-card{
  max-width:900px;margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:56px;box-shadow:var(--shadow-sm);
}
.article-body{max-width:72ch;margin:0 auto;font-size:17px;line-height:1.95;color:var(--ink-900);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:26px;font-weight:800;line-height:1.35;color:var(--brand-900);
  margin:2.4em 0 .8em;padding-left:14px;border-left:4px solid var(--accent-500);
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;color:var(--brand-700);margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.6em 0 .5em;}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.4em 0;line-height:1.9;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-body a:hover{color:var(--brand-700);}
.article-body strong{font-weight:800;color:var(--brand-900);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 24px;
  background:var(--paper-2);border-left:4px solid var(--brand-500);
  border-radius:0 14px 14px 0;color:var(--ink-600);font-size:16px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:1.6em auto;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-600);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{background:var(--paper-2);font-weight:700;color:var(--brand-700);}
.article-body code{background:var(--paper-2);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ---------- 文末操作 ---------- */
.article-foot{
  max-width:900px;margin:0 auto;padding:28px 0 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.foot-note{font-size:13.5px;color:var(--ink-600);max-width:520px;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:900px;margin:0 auto;padding:72px 32px;text-align:center;
  background:#fff;border:1.5px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-icon{
  width:56px;height:56px;border-radius:18px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-2);color:var(--brand-500);font-size:24px;font-weight:800;
}
.empty-state h2{font-size:22px;font-weight:800;color:var(--brand-900);}
.empty-state p{margin-top:10px;font-size:15px;color:var(--ink-600);}
.empty-state .btn{margin-top:22px;}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--brand-900);line-height:1.3;}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-600);}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-300);}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,var(--brand-700),var(--brand-900));}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:17px;font-weight:700;line-height:1.55;color:var(--brand-900);}
.rec-body p{font-size:14px;line-height:1.75;color:var(--ink-600);flex:1;}
.rec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-500);}
.rec-card:hover .rec-more .arrow{transform:translateX(4px);}
.rec-more .arrow{transition:transform .2s ease;}

/* ---------- CTA 通栏 ---------- */
.cta-band{padding:72px 0 88px;}
.cta-inner{
  background:var(--grad-brand);
  border-radius:28px;padding:56px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;color:#fff;}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(242,247,243,.82);max-width:520px;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 220px;height:48px;padding:0 18px;border-radius:14px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);
  color:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(242,247,243,.6);}
.cta-form input:focus{
  outline:none;border-color:var(--brand-300);background:rgba(255,255,255,.18);
  box-shadow:0 0 0 3px rgba(95,211,166,.28);
}
.cta-hint{margin-top:12px;font-size:12.5px;color:rgba(242,247,243,.62);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,37,31,.55);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:90;
  background:var(--paper);padding:24px;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:8px;
  box-shadow:var(--shadow-lg);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--brand-900);font-size:20px;line-height:1;cursor:pointer;
  transition:background .2s ease;
}
.drawer-close:hover{background:var(--paper-2);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 16px;border-radius:14px;font-size:16px;font-weight:600;
  color:var(--ink-900);background:#fff;border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer-nav a:hover{background:var(--paper-2);color:var(--brand-700);border-color:var(--brand-300);}
.drawer-cta{margin-top:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--ink-invert);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);box-shadow:none;}
.footer-text{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(242,247,243,.72);max-width:340px;}
.footer-addr{margin-top:12px;font-size:13px;color:rgba(242,247,243,.52);}
.footer-col h3{font-size:14px;font-weight:700;color:var(--brand-300);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(242,247,243,.72);transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(242,247,243,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:70px;}
  .logo-text{font-size:18px;}
  .article-card{padding:36px;}
  .cta-inner{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px;}
  .article-head{padding:34px 0 40px;}
  .article-main{padding:36px 0 0;}
  .article-card{padding:24px;border-radius:var(--radius-md);}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-band{padding:48px 0 64px;}
  .cta-inner{padding:32px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 24px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .header-cta{display:none;}
  .logo-text{font-size:17px;}
  .breadcrumb .current{max-width:52vw;}
  .empty-state{padding:48px 20px;}
}

/* roulang page: category1 */
:root{
    --brand-900:#0A251F;
    --brand-700:#14523F;
    --brand-500:#1E8A66;
    --brand-300:#5FD3A6;
    --accent-500:#FF7A45;
    --accent-100:#FFEDE3;
    --paper:#F7F5F0;
    --paper-2:#EDF2EE;
    --line:#DCE3DD;
    --ink-900:#14201C;
    --ink-600:#55635E;
    --ink-invert:#F2F7F3;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow-sm:0 2px 8px rgba(10,37,31,.06);
    --shadow-md:0 12px 28px rgba(10,37,31,.10);
    --shadow-lg:0 24px 60px rgba(10,37,31,.18);
    --header-h:76px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    background:var(--paper);
    color:var(--ink-900);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  input{font:inherit}
  ::selection{background:var(--brand-300);color:var(--brand-900)}

  .container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;border:1px solid transparent;
    font-weight:700;line-height:1;white-space:nowrap;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease,border-color .2s ease;
  }
  .btn-primary{background:var(--accent-500);color:#0A251F;box-shadow:var(--shadow-sm)}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-md)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.95)}
  .btn-primary:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-ghost:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
  .btn-outline:hover{background:var(--accent-100);border-color:var(--accent-500);color:var(--brand-900);transform:translateY(-1px)}
  .btn-outline:active{transform:translateY(0)}
  .btn-outline:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .btn-sm{height:44px;padding:0 22px;font-size:15px}
  .btn-md{height:48px;padding:0 26px;font-size:15px}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:700;color:var(--brand-700);
    padding:6px 2px;border-radius:8px;
    transition:color .2s ease;
  }
  .text-link svg{transition:transform .2s ease}
  .text-link:hover{color:var(--brand-500)}
  .text-link:hover svg{transform:translateX(4px)}
  .text-link:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:999px;
    font-size:12.5px;font-weight:600;line-height:1.5;
    font-variant-numeric:tabular-nums;
  }
  .badge-soft{background:var(--paper-2);border:1px solid var(--line);color:var(--brand-700)}
  .badge-accent{background:var(--accent-100);border:1px solid rgba(255,122,69,.35);color:#B8471D}
  .badge-dark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:var(--brand-300)}
  .badge-dark .dot,.badge-soft .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.85}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:transparent;border-bottom:1px solid transparent;
    transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .site-header.is-scrolled{
    background:rgba(247,245,240,.96);
    backdrop-filter:blur(12px);
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-sm);
  }
  .header-inner{
    height:var(--header-h);
    display:flex;align-items:center;gap:24px;
  }
  .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand-500) 0%,var(--brand-300) 100%);
    color:#062019;font-size:21px;font-weight:800;line-height:1;
    box-shadow:0 4px 12px rgba(10,37,31,.18);
  }
  .logo-text{
    font-size:21px;font-weight:800;letter-spacing:-.01em;
    color:#fff;transition:color .3s ease;
  }
  .site-header.is-scrolled .logo-text{color:var(--brand-900)}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    height:44px;padding:0 14px;border-radius:10px;
    font-size:16px;font-weight:600;color:rgba(255,255,255,.86);
    transition:color .2s ease,background-color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:6px;
    height:2px;border-radius:2px;background:var(--accent-500);
    transform:scaleX(0);transform-origin:left center;
    transition:transform .25s ease;
  }
  .nav-link:hover{color:#fff}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{transform:scaleX(1)}
  .site-header.is-scrolled .nav-link{color:var(--ink-600)}
  .site-header.is-scrolled .nav-link:hover,
  .site-header.is-scrolled .nav-link.is-active{color:var(--brand-900)}
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(255,255,255,.4);
    align-items:center;justify-content:center;
    transition:background-color .2s ease,border-color .2s ease;
  }
  .nav-toggle:hover{background:rgba(255,255,255,.14)}
  .nav-toggle:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .site-header.is-scrolled .nav-toggle{border-color:var(--line);color:var(--brand-900)}
  .nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  /* ---------- 抽屉 ---------- */
  .drawer-mask{
    position:fixed;inset:0;z-index:70;background:rgba(10,37,31,.55);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}
  .mobile-drawer{
    position:fixed;top:0;right:0;z-index:80;
    width:320px;max-width:86vw;height:100%;
    background:var(--brand-900);color:var(--ink-invert);
    padding:24px 22px 32px;
    transform:translateX(102%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;gap:6px;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
    display:grid;place-items:center;font-size:20px;line-height:1;
    transition:background-color .2s ease;
  }
  .drawer-close:hover{background:rgba(255,255,255,.12)}
  .drawer-close:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 4px;font-size:16px;font-weight:600;
    color:rgba(242,247,243,.82);
    border-bottom:1px solid rgba(255,255,255,.1);
    transition:color .2s ease,padding-left .2s ease;
  }
  .drawer-link:hover{color:#fff;padding-left:8px}
  .drawer-link.is-active{color:var(--brand-300)}
  .drawer-cta{margin-top:22px}
  .drawer-cta .btn{width:100%}
  body.no-scroll{overflow:hidden}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;overflow:hidden;
    margin-top:calc(var(--header-h) * -1);
    padding-top:calc(var(--header-h) + 48px);
    padding-bottom:56px;
    min-height:calc(var(--header-h) + 306px);
    background:var(--brand-900);
    display:flex;align-items:center;
  }
  .cat-hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    transform:scale(1.03);
  }
  .cat-hero-shade{
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(10,37,31,.95) 0%,rgba(10,37,31,.84) 44%,rgba(10,37,31,.42) 100%);
  }
  .cat-hero-inner{
    position:relative;z-index:2;
    display:grid;grid-template-columns:minmax(0,1fr) auto;
    align-items:center;gap:40px;
  }
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.06em;
    color:var(--brand-300);margin-bottom:14px;
  }
  .hero-eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px}
  .cat-hero h1{
    font-size:clamp(30px,4vw,46px);
    line-height:1.14;letter-spacing:-.02em;font-weight:800;
    color:#fff;max-width:19ch;
  }
  .cat-hero-sub{
    margin-top:16px;max-width:52ch;
    font-size:16.5px;line-height:1.8;color:rgba(242,247,243,.82);
  }
  .cat-hero-badges{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
  .cat-hero-badges .badge{font-size:13px;padding:8px 16px}

  /* ---------- 筛选胶囊 ---------- */
  .filter-bar{
    display:flex;flex-wrap:wrap;gap:10px;
    padding:26px 0 8px;
  }
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    height:40px;padding:0 18px;border-radius:999px;
    background:var(--paper-2);border:1px solid var(--line);
    color:var(--brand-700);font-size:14px;font-weight:600;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .chip:hover{background:var(--accent-100);border-color:var(--accent-500);color:var(--brand-900);transform:translateY(-1px)}
  .chip:active{transform:translateY(0)}
  .chip:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .chip.is-on{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
  .chip span.count{font-variant-numeric:tabular-nums;font-size:12.5px;opacity:.72}

  /* ---------- 版块 ---------- */
  .section{padding:56px 0}
  .section-plain{padding:24px 0 56px}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
  .section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-600);max-width:60ch}

  /* ---------- 卡带 ---------- */
  .rail-block{padding:28px 0 8px}
  .rail-block + .rail-block{border-top:1px solid var(--line)}
  .rail-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:20px;margin-bottom:20px;
  }
  .rail-head h3{font-size:23px;font-weight:700;line-height:1.3}
  .rail-head p{margin-top:6px;font-size:14px;color:var(--ink-600);max-width:56ch}
  .rail-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .rail-btn{
    width:40px;height:40px;border-radius:50%;
    background:#fff;border:1px solid var(--line);
    display:grid;place-items:center;color:var(--brand-700);
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .rail-btn:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px)}
  .rail-btn:active{transform:translateY(0)}
  .rail-btn:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
  .rail-btn svg{width:16px;height:16px}

  .rail-wrap{position:relative}
  .rail-wrap::after{
    content:"";position:absolute;top:0;right:0;bottom:20px;width:56px;
    background:linear-gradient(90deg,rgba(247,245,240,0),var(--paper));
    pointer-events:none;opacity:.95;
  }
  .rail{
    display:flex;gap:20px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
    padding:4px 4px 20px;
    scrollbar-width:none;
  }
  .rail::-webkit-scrollbar{display:none}

  .media-card{
    flex:0 0 280px;scroll-snap-align:start;
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-lg);overflow:hidden;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#ccd9d1}
  .media-thumb{
    position:relative;display:block;
    aspect-ratio:16/10;overflow:hidden;
    background:linear-gradient(160deg,var(--brand-700),var(--brand-900));
  }
  .media-thumb img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .45s ease;
  }
  .media-card:hover .media-thumb img{transform:scale(1.05)}
  .media-thumb:focus-visible{outline:2px solid var(--accent-500);outline-offset:-2px}
  .media-thumb::after{
    content:"";position:absolute;inset:auto 0 0 0;height:58%;
    background:linear-gradient(180deg,rgba(10,37,31,0),rgba(10,37,31,.9));
  }
  .media-title{
    position:absolute;left:16px;right:16px;bottom:12px;z-index:2;
    color:#fff;font-size:16.5px;font-weight:700;line-height:1.45;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .media-meta{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 16px 16px;
  }
  .media-meta .meta-time{
    font-size:12.5px;color:var(--ink-600);font-variant-numeric:tabular-nums;
  }
  .media-meta .meta-arrow{color:var(--brand-500);display:inline-flex;transition:transform .2s ease}
  .media-card:hover .meta-arrow{transform:translateX(3px)}

  /* ---------- FAQ ---------- */
  .faq-section{background:var(--paper-2);padding:72px 0}
  .faq-list{max-width:820px;margin:28px auto 0}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    margin-bottom:12px;overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:#cbd8d1}
  .faq-item[open]{border-color:#cbd8d1;box-shadow:var(--shadow-sm)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    min-height:64px;padding:16px 24px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    font-size:17px;font-weight:700;line-height:1.5;
    transition:color .2s ease,box-shadow .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--brand-500)}
  .faq-item summary:focus-visible{outline:2px solid var(--accent-500);outline-offset:-4px;border-radius:var(--radius-md)}
  .faq-item[open] summary{box-shadow:inset 3px 0 0 var(--accent-500)}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);color:var(--brand-700);
    display:grid;place-items:center;font-size:16px;line-height:1;
    transition:transform .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-500);border-color:var(--accent-500);color:#0A251F}
  .faq-answer{padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--ink-600)}

  /* ---------- CTA ---------- */
  .cta-band{
    background:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
    border-radius:28px;
    padding:56px;
    display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
    color:#fff;box-shadow:var(--shadow-lg);
  }
  .cta-band h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.28;letter-spacing:-.01em}
  .cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(242,247,243,.84);max-width:44ch}
  .subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
  .subscribe-form input{
    flex:1 1 220px;height:48px;padding:0 16px;border-radius:14px;
    border:1px solid rgba(255,255,255,.28);
    background:rgba(255,255,255,.12);color:#fff;
    font-size:15px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .subscribe-form input::placeholder{color:rgba(242,247,243,.6)}
  .subscribe-form input:focus{
    border-color:var(--brand-300);
    background:rgba(255,255,255,.18);
    box-shadow:0 0 0 3px rgba(95,211,166,.25);
  }
  .form-note{margin-top:10px;font-size:13px;color:rgba(242,247,243,.72);min-height:20px}
  .form-note.is-ok{color:#CFF7E4}
  .form-note.is-err{color:#FFC7AF}

  .back-home{margin:40px 0 0;display:flex;justify-content:center}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900);color:var(--ink-invert);
    border-top:1px solid rgba(255,255,255,.08);
    padding:64px 0 28px;margin-top:96px;
  }
  .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
  .footer-brand .logo-text{color:#fff}
  .footer-text{margin:16px 0 12px;max-width:36ch;font-size:14px;line-height:1.85;color:rgba(242,247,243,.72)}
  .footer-addr{font-size:13px;color:rgba(242,247,243,.5);font-variant-numeric:tabular-nums}
  .footer-col h3{font-size:14px;font-weight:700;color:var(--brand-300);margin-bottom:16px}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a,.footer-col span{font-size:14px;color:rgba(242,247,243,.7);transition:color .2s ease}
  .footer-col a:hover{color:#fff}
  .footer-col a:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:6px}
  .footer-bottom{
    margin-top:48px;padding-top:20px;
    border-top:1px solid rgba(255,255,255,.1);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(242,247,243,.55);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .nav-links{gap:0}
    .nav-link{font-size:15px;padding:0 10px}
    .nav-link::after{left:10px;right:10px}
  }
  @media (max-width:1023px){
    .nav-links{display:none}
    .nav-toggle{display:inline-flex}
    .header-actions .btn-sm{display:none}
    .cta-band{grid-template-columns:1fr;padding:40px 32px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:768px){
    :root{--header-h:64px}
    .container{padding:0 20px}
    .logo-mark{width:34px;height:34px;border-radius:10px;font-size:19px}
    .logo-text{font-size:17.5px}
    .cat-hero{padding-bottom:44px;min-height:calc(var(--header-h) + 290px)}
    .cat-hero-inner{grid-template-columns:1fr;gap:24px}
    .cat-hero-badges{flex-direction:row;flex-wrap:wrap;gap:10px}
    .cat-hero-sub{font-size:15.5px}
    .rail-head{flex-direction:column;align-items:flex-start;gap:12px}
    .rail-tools{align-self:flex-end}
    .media-card{flex:0 0 78vw}
    .rail-wrap::after{display:none}
    .section{padding:44px 0}
    .faq-section{padding:52px 0}
    .cta-band{padding:32px 24px;border-radius:22px}
    .site-footer{padding:48px 0 24px;margin-top:64px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;gap:8px}
    .faq-item summary{font-size:16px;padding:14px 18px}
    .faq-answer{padding:0 18px 20px}
  }
  @media (max-width:520px){
    .cat-hero h1{font-size:28px}
    .rail-head h3{font-size:20px}
    .filter-bar{gap:8px;padding:20px 0 4px}
    .chip{height:36px;padding:0 14px;font-size:13px}
    .subscribe-form input{flex:1 1 100%}
    .subscribe-form .btn{width:100%}
  }

/* roulang page: category2 */
:root{
  --brand-900:#0A251F;
  --brand-700:#14523F;
  --brand-500:#1E8A66;
  --brand-300:#5FD3A6;
  --accent-500:#FF7A45;
  --accent-100:#FFEDE3;
  --paper:#F7F5F0;
  --paper-2:#EDF2EE;
  --line:#DCE3DD;
  --ink-900:#14201C;
  --ink-600:#55635E;
  --ink-invert:#F2F7F3;
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-sm:0 2px 8px rgba(10,37,31,.06);
  --shadow-md:0 12px 28px rgba(10,37,31,.10);
  --shadow-lg:0 24px 60px rgba(10,37,31,.18);
  --brand-gradient:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
.site-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
.site-body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);background:rgba(247,245,240,.98);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:var(--brand-gradient);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:-.02em;
  box-shadow:0 6px 16px rgba(10,37,31,.24);
}
.logo-text{font-size:21px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:17px;font-weight:600;color:var(--brand-700);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--accent-500);border-radius:2px;
  transition:width .25s ease;
}
.nav-link:hover{color:var(--brand-500);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--brand-900);}
.nav-link.is-active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background .2s ease,border-color .2s ease,transform .15s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);}
.nav-toggle:hover{background:var(--accent-100);border-color:var(--accent-500);}
.nav-toggle:active{transform:scale(.96);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:var(--brand-900);box-shadow:var(--shadow-sm);}
.btn-primary:hover{box-shadow:var(--shadow-md);transform:translateY(-1px);background:#ff8a5c;}
.btn-primary:active{transform:translateY(0);background:#f26c36;}
.btn-ghost{border:1px solid var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-ghost:hover{background:var(--accent-100);border-color:var(--accent-500);color:var(--brand-900);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:44px;padding:0 22px;font-size:15px;}
.btn-md{height:50px;padding:0 28px;font-size:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--brand-500);
  transition:color .2s ease;
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover{color:var(--brand-700);}
.link-arrow:hover svg{transform:translateX(4px);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,37,31,.55);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:95;
  background:var(--paper);padding:24px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  box-shadow:var(--shadow-lg);
}
.drawer.is-open{transform:translateX(0);}
.drawer-title{font-size:13px;font-weight:700;color:var(--ink-600);letter-spacing:.12em;margin:8px 0 4px;}
.drawer a.drawer-link{
  display:block;padding:13px 14px;border-radius:14px;font-size:16px;font-weight:600;color:var(--brand-700);
  transition:background .2s ease,color .2s ease;
}
.drawer a.drawer-link:hover{background:var(--paper-2);color:var(--brand-500);}
.drawer a.drawer-link.is-active{background:var(--brand-900);color:#fff;}
.drawer .btn{margin-top:14px;width:100%;}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  transition:background .2s ease,color .2s ease;
}
.drawer-close:hover{background:var(--accent-100);color:var(--brand-900);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums;
  border:1px solid var(--line);background:var(--paper-2);color:var(--brand-700);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);}
.badge-accent{background:var(--accent-100);border-color:#FFD5C1;color:#C4491F;}
.badge-accent .dot{background:var(--accent-500);}
.badge-dark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.18);color:var(--brand-300);}
.badge-dark .dot{background:var(--brand-300);}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.cat-hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;min-height:300px;
}
.cat-hero h1{
  font-size:44px;line-height:1.14;font-weight:800;letter-spacing:-.02em;
  color:var(--brand-900);margin:16px 0 16px;
}
.cat-hero p.lead{font-size:17px;line-height:1.85;color:var(--ink-600);max-width:34em;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cat-hero-media{position:relative;}
.cat-hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);background:linear-gradient(160deg,var(--brand-700),var(--brand-900));
}
.cat-hero-media figcaption{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(10,37,31,.72);color:var(--ink-invert);
  font-size:13px;font-weight:600;backdrop-filter:blur(6px);
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:18px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-600);
}
.crumb a{transition:color .2s ease;}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:var(--line);}
.crumb .now{color:var(--brand-700);font-weight:600;}

/* ---------- 主体：左目录 + 右内容 ---------- */
.cat-main{padding:56px 0 96px;}
.cat-layout{
  display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);
  gap:32px;align-items:start;
}
.toc-card{
  position:sticky;top:100px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 20px;box-shadow:var(--shadow-sm);
}
.toc-card h2{font-size:15px;font-weight:800;color:var(--brand-900);letter-spacing:.02em;margin-bottom:6px;}
.toc-card .toc-note{font-size:13px;color:var(--ink-600);line-height:1.7;margin-bottom:16px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  position:relative;display:block;padding:11px 12px 11px 16px;
  border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-600);
  transition:color .2s ease,background .2s ease;
}
.toc-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--accent-500);
  transition:height .22s ease;
}
.toc-link:hover{background:var(--paper-2);color:var(--brand-700);}
.toc-link:hover::before{height:18px;}
.toc-link.is-active{color:var(--brand-500);background:var(--paper-2);}
.toc-link.is-active::before{height:22px;}
.toc-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-600);line-height:1.75;
}

/* 内容分区 */
.section-block{margin-bottom:56px;}
.section-block:last-child{margin-bottom:0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{
  font-size:32px;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);
  position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--accent-500);
}
.section-head p{font-size:14px;color:var(--ink-600);max-width:38em;line-height:1.8;margin-top:8px;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#CBDCCF;}
.info-card:active{transform:translateY(-1px);}
.info-card .thumb{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--brand-700),var(--brand-900));}
.info-card .thumb img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .35s ease;
}
.info-card:hover .thumb img{transform:scale(1.04);}
.info-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card h3{font-size:19px;line-height:1.45;font-weight:700;color:var(--brand-900);}
.info-card p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}
.info-card .meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-top:6px;font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums;
}
.info-card .meta .tag{
  height:24px;padding:0 10px;border-radius:999px;
  background:var(--paper-2);border:1px solid var(--line);
  font-size:12px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;
}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 18px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--accent-500);box-shadow:var(--shadow-sm);transform:translateY(-3px);}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;font-weight:800;color:var(--brand-500);
  font-variant-numeric:tabular-nums;margin-bottom:12px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.step:hover .num{background:var(--accent-500);border-color:var(--accent-500);color:var(--brand-900);}
.step h3{font-size:16px;font-weight:700;color:var(--brand-900);margin-bottom:6px;}
.step p{font-size:13.5px;line-height:1.75;color:var(--ink-600);}
.steps-note{
  margin-top:20px;padding:20px 22px;border-radius:var(--radius-md);
  background:var(--paper-2);border:1px solid var(--line);
  font-size:14px;line-height:1.85;color:var(--brand-700);
}

/* ---------- FAQ ---------- */
.faq-section{background:var(--paper-2);padding:88px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-head{text-align:center;margin-bottom:32px;}
.faq-head h2{font-size:34px;font-weight:800;color:var(--brand-900);line-height:1.25;}
.faq-head p{margin-top:10px;font-size:14.5px;color:var(--ink-600);}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-sm);border-color:#CBDCCF;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 24px;
  font-size:17px;font-weight:700;color:var(--brand-900);
  position:relative;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--accent-500);opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary:hover{color:var(--brand-500);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:999px;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--brand-500);
  transition:transform .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-500);border-color:var(--accent-500);color:var(--brand-900);}
.faq-answer{padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--ink-600);}

/* ---------- CTA 条 ---------- */
.cta-band{padding:80px 0;}
.cta-card{
  background:linear-gradient(120deg,#E4F3EA 0%,#EDF2EE 58%,#FFEDE3 100%);
  border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:48px 56px;
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);
  gap:40px;align-items:center;
  box-shadow:var(--shadow-sm);
}
.cta-card h2{font-size:30px;line-height:1.28;font-weight:800;color:var(--brand-900);}
.cta-card p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--brand-700);max-width:34em;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1 1 220px;min-width:0;height:50px;padding:0 16px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:#8C9A94;}
.subscribe-form input:hover{border-color:#C3D3C8;}
.subscribe-form input:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(30,138,102,.18);
}
.form-msg{margin-top:10px;font-size:13px;color:var(--brand-500);min-height:18px;}
.form-msg.is-error{color:var(--accent-500);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--ink-invert);border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,3fr) minmax(0,3fr) minmax(0,3fr);
  gap:40px;padding:64px 0 48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:var(--ink-invert);font-size:20px;}
.footer-text{font-size:14px;line-height:1.85;color:rgba(242,247,243,.72);max-width:30em;}
.footer-addr{margin-top:14px;font-size:13px;color:rgba(242,247,243,.55);font-variant-numeric:tabular-nums;}
.footer-col h3{font-size:14px;font-weight:700;color:var(--brand-300);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{
  font-size:14px;color:rgba(242,247,243,.7);transition:color .2s ease;
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(242,247,243,.6);font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .header-inner{height:70px;gap:16px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions{margin-left:auto;}
  .cat-hero{padding:44px 0;}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px;min-height:0;}
  .cat-hero h1{font-size:36px;}
  .cat-hero-media{order:2;}
  .cat-hero-media img{aspect-ratio:16/9;}
  .cat-layout{grid-template-columns:1fr;gap:24px;}
  .toc-card{position:static;}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc-link{padding:9px 14px;background:var(--paper-2);font-size:14px;}
  .toc-link::before{display:none;}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}
  .section-head h2{font-size:26px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{grid-template-columns:1fr;padding:36px;gap:24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 36px;}
  .faq-section{padding:64px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .logo-text{font-size:17px;}
  .logo-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
  .nav-actions .btn-sm{height:40px;padding:0 16px;font-size:14px;}
  .cat-hero h1{font-size:30px;line-height:1.2;}
  .cat-hero p.lead{font-size:15.5px;}
  .cat-main{padding:36px 0 64px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .info-card h3{font-size:17.5px;}
  .toc-list{grid-template-columns:1fr;}
  .section-block{margin-bottom:44px;}
  .section-head h2{font-size:23px;padding-left:14px;}
  .section-head h2::before{width:3px;}
  .steps{grid-template-columns:1fr;}
  .faq-head h2{font-size:26px;}
  .faq-item summary{font-size:16px;padding:14px 18px;min-height:56px;}
  .faq-answer{padding:0 18px 20px;font-size:14.5px;}
  .cta-band{padding:56px 0;}
  .cta-card{padding:28px 22px;border-radius:22px;}
  .cta-card h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:27px;}
  .btn-md{height:46px;padding:0 20px;font-size:15px;}
  .badge{font-size:12px;height:26px;padding:0 10px;}
  .subscribe-form{flex-direction:column;align-items:stretch;}
  .subscribe-form input,.subscribe-form .btn{width:100%;}
}

/* roulang page: category3 */
:root{
    --brand-900:#0A251F;
    --brand-700:#14523F;
    --brand-500:#1E8A66;
    --brand-300:#5FD3A6;
    --accent-500:#FF7A45;
    --accent-100:#FFEDE3;
    --paper:#F7F5F0;
    --paper-2:#EDF2EE;
    --line:#DCE3DD;
    --ink-900:#14201C;
    --ink-600:#55635E;
    --ink-invert:#F2F7F3;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow-sm:0 2px 8px rgba(10,37,31,.06);
    --shadow-md:0 12px 28px rgba(10,37,31,.10);
    --shadow-lg:0 24px 60px rgba(10,37,31,.18);
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}

  .site-body{
    margin:0;
    font-family:var(--font-sans);
    background:var(--paper);
    color:var(--ink-900);
    font-size:16px;
    line-height:1.85;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  .site-body img{display:block;max-width:100%;height:auto;}
  .site-body a{color:inherit;text-decoration:none;}
  .site-body button{font-family:inherit;}
  .site-body input{font-family:inherit;}
  body.no-scroll{overflow:hidden;}

  .skip-link{
    position:absolute;left:-9999px;top:0;z-index:200;
    background:var(--brand-900);color:#fff;
    padding:10px 18px;border-radius:0 0 14px 0;font-size:14px;
  }
  .skip-link:focus{left:0;color:#fff;}

  .container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:32px;
    padding-right:32px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background-color .28s ease,border-color .28s ease,box-shadow .28s ease,backdrop-filter .28s ease;
  }
  .site-header.is-scrolled{
    background:rgba(247,245,240,.94);
    backdrop-filter:blur(12px);
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-sm);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:78px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:38px;height:38px;
    border-radius:12px;
    display:grid;place-items:center;
    font-size:20px;font-weight:800;line-height:1;
    color:#fff;
    background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
    box-shadow:var(--shadow-sm);
  }
  .logo-text{
    font-size:21px;
    font-weight:800;
    letter-spacing:-.01em;
    color:var(--ink-invert);
    transition:color .28s ease;
    white-space:nowrap;
  }
  .site-header.is-scrolled .logo-text{color:var(--ink-900);}

  .nav-links{
    display:flex;
    align-items:center;
    gap:30px;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:6px 0;
    font-size:16px;
    font-weight:600;
    color:rgba(242,247,243,.82);
    transition:color .22s ease;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;bottom:0;
    height:2px;width:0;
    background:var(--accent-500);
    transition:width .26s ease;
  }
  .nav-link:hover{color:#fff;}
  .nav-link:hover::after{width:100%;}
  .nav-link.is-active{color:#fff;}
  .nav-link.is-active::after{width:100%;}
  .nav-link:focus-visible{
    outline:2px solid var(--accent-500);
    outline-offset:4px;
    border-radius:4px;
  }
  .site-header.is-scrolled .nav-link{color:var(--ink-600);}
  .site-header.is-scrolled .nav-link:hover,
  .site-header.is-scrolled .nav-link.is-active{color:var(--brand-700);}

  .header-actions{
    display:flex;
    align-items:center;
    gap:16px;
    flex-shrink:0;
  }
  .header-textlink{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;font-weight:600;
    color:rgba(242,247,243,.82);
    transition:color .2s ease,gap .2s ease;
  }
  .header-textlink:hover{color:#fff;gap:10px;}
  .header-textlink:focus-visible{outline:2px solid var(--accent-500);outline-offset:4px;border-radius:4px;}
  .site-header.is-scrolled .header-textlink{color:var(--brand-700);}
  .site-header.is-scrolled .header-textlink:hover{color:var(--brand-500);}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:999px;
    border:1px solid transparent;
    font-weight:700;
    cursor:pointer;
    text-align:center;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,filter .18s ease,border-color .18s ease;
  }
  .btn:focus-visible{
    outline:2px solid var(--accent-500);
    outline-offset:2px;
  }
  .btn-primary{
    height:44px;
    padding:0 22px;
    font-size:15px;
    background:var(--accent-500);
    color:var(--brand-900);
  }
  .btn-primary:hover{
    filter:brightness(1.05);
    transform:translateY(-1px);
    box-shadow:var(--shadow-md);
  }
  .btn-primary:active{
    transform:translateY(0);
    filter:brightness(.96);
    box-shadow:none;
  }
  .btn-outline{
    height:48px;
    padding:0 26px;
    font-size:15px;
    border-color:var(--brand-700);
    color:var(--brand-700);
    background:transparent;
  }
  .btn-outline:hover{background:var(--accent-100);transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-invert{
    height:48px;
    padding:0 26px;
    font-size:15px;
    background:#fff;
    color:var(--brand-900);
  }
  .btn-invert:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-invert:active{transform:translateY(0);box-shadow:none;}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border-radius:12px;
    border:1px solid rgba(255,255,255,.35);
    background:rgba(255,255,255,.10);
    color:var(--ink-invert);
    cursor:pointer;
    transition:background-color .2s ease,border-color .2s ease,color .2s ease;
  }
  .nav-toggle:hover{background:rgba(255,255,255,.2);}
  .nav-toggle:active{background:rgba(255,255,255,.12);}
  .nav-toggle:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
  .site-header.is-scrolled .nav-toggle{
    border-color:var(--line);
    background:#fff;
    color:var(--brand-700);
  }
  .site-header.is-scrolled .nav-toggle:hover{background:var(--paper-2);}
  .nav-toggle svg{width:20px;height:20px;}

  /* ============ 抽屉 ============ */
  .drawer-mask{
    position:fixed;inset:0;
    z-index:80;
    background:rgba(10,37,31,.55);
    opacity:0;visibility:hidden;
    transition:opacity .3s ease,visibility .3s ease;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}

  .drawer{
    position:fixed;
    top:0;right:0;
    z-index:90;
    width:320px;
    max-width:86vw;
    height:100%;
    background:var(--paper);
    padding:22px 22px 32px;
    transform:translateX(100%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
    box-shadow:var(--shadow-lg);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    gap:12px;
    padding-bottom:18px;
    border-bottom:1px solid var(--line);
  }
  .drawer-close{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:10px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--brand-700);
    cursor:pointer;
    transition:background-color .2s ease,transform .2s ease;
  }
  .drawer-close:hover{background:var(--paper-2);}
  .drawer-close:active{transform:scale(.96);}
  .drawer-close:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
  .drawer-nav{display:grid;gap:4px;margin-top:18px;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 14px;
    border-radius:12px;
    font-size:15px;font-weight:600;
    color:var(--ink-900);
    transition:background-color .2s ease,color .2s ease;
  }
  .drawer-nav a:hover{background:var(--paper-2);color:var(--brand-700);}
  .drawer-nav a:active{background:var(--accent-100);}
  .drawer-nav a:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
  .drawer-nav a.is-active{background:var(--accent-100);color:var(--brand-700);}
  .drawer-cta{margin-top:22px;width:100%;}

  /* ============ Hero ============ */
  .cat-hero{
    position:relative;
    overflow:hidden;
    padding-top:132px;
    padding-bottom:52px;
    color:var(--ink-invert);
    background:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
  }
  .cat-hero::before{
    content:"";
    position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.065) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.065) 1px,transparent 1px);
    background-size:56px 56px;
    pointer-events:none;
  }
  .cat-hero::after{
    content:"";
    position:absolute;
    right:-120px;bottom:-160px;
    width:420px;height:420px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(255,122,69,.35),transparent 70%);
    pointer-events:none;
  }
  .cat-hero .container{position:relative;z-index:1;}
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;
    color:rgba(242,247,243,.72);
    margin-bottom:20px;
  }
  .crumbs a{color:rgba(242,247,243,.72);transition:color .2s ease;}
  .crumbs a:hover{color:#fff;}
  .crumbs a:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:4px;}
  .crumbs .sep{color:rgba(242,247,243,.45);}
  .crumbs .current{color:var(--brand-300);font-weight:600;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 13px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    line-height:1.6;
    font-variant-numeric:tabular-nums;
    white-space:nowrap;
  }
  .badge-dot::before{
    content:"";
    width:6px;height:6px;border-radius:50%;
    background:currentColor;
    opacity:.85;
  }
  .badge-dark{
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.20);
    color:var(--brand-300);
  }
  .badge-light{
    background:var(--paper-2);
    border:1px solid var(--line);
    color:var(--brand-700);
  }
  .badge-accent{
    background:var(--accent-500);
    color:var(--brand-900);
  }

  .hero-title{
    font-size:clamp(30px,4.4vw,56px);
    line-height:1.14;
    font-weight:800;
    letter-spacing:-.02em;
    margin:18px 0 16px;
    max-width:16em;
  }
  .hero-sub{
    font-size:18px;
    line-height:1.8;
    color:rgba(242,247,243,.86);
    max-width:38em;
    margin:0 0 26px;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }

  /* ============ 通用区块 ============ */
  .section-eyebrow{
    font-size:13px;
    font-weight:700;
    letter-spacing:.16em;
    color:var(--brand-500);
    margin:0 0 12px;
  }
  .section-title{
    font-size:clamp(24px,3.2vw,38px);
    line-height:1.26;
    font-weight:700;
    letter-spacing:-.01em;
    color:var(--brand-900);
    margin:0 0 16px;
  }
  .section-lead{
    font-size:15px;
    color:var(--ink-600);
    margin:0;
  }

  /* ============ 导读 ============ */
  .intro-section{
    background:var(--paper-2);
    padding:88px 0 80px;
  }
  .intro-grid{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:56px;
    align-items:center;
  }
  .intro-text{
    font-size:16px;
    line-height:1.92;
    color:var(--ink-600);
    margin:0 0 14px;
  }
  .intro-text strong{color:var(--brand-700);font-weight:700;}
  .stat-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:24px;
  }
  .intro-figure{
    margin:0;
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--shadow-md);
    background:linear-gradient(160deg,var(--brand-700),var(--brand-900));
  }
  .intro-figure img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .intro-figure figcaption{
    padding:14px 18px;
    font-size:13px;
    line-height:1.7;
    color:var(--ink-invert);
    background:var(--brand-900);
  }

  /* ============ 时间轴 ============ */
  .timeline-section{
    background:var(--paper);
    padding:88px 0 92px;
  }
  .timeline-head{
    max-width:900px;
    margin:0 auto 26px;
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
  }
  .timeline-head .section-title{margin-bottom:0;}
  .timeline-note{
    font-size:14px;
    color:var(--ink-600);
    margin:0;
  }
  .timeline-wrap{
    max-width:900px;
    margin:0 auto;
  }
  .timeline{
    list-style:none;
    margin:0;
    padding:0;
    border-top:1px solid var(--line);
  }
  .timeline-item{
    display:grid;
    grid-template-columns:64px 1fr 40px;
    gap:24px;
    align-items:start;
    padding:26px 18px;
    border-bottom:1px solid var(--line);
    border-radius:var(--radius-sm);
    transition:background-color .22s ease;
  }
  .timeline-item:hover{background:var(--paper-2);}
  .timeline-num{
    width:64px;height:64px;
    border-radius:50%;
    border:1px solid var(--line);
    background:#fff;
    display:grid;place-items:center;
    font-size:18px;
    font-weight:800;
    color:var(--brand-700);
    font-variant-numeric:tabular-nums;
    transition:background-color .22s ease,border-color .22s ease,color .22s ease;
  }
  .timeline-item:hover .timeline-num{
    background:var(--accent-500);
    border-color:var(--accent-500);
    color:var(--brand-900);
  }
  .timeline-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-bottom:6px;
  }
  .timeline-time{
    font-size:13px;
    color:var(--ink-600);
    font-variant-numeric:tabular-nums;
  }
  .timeline-title{
    font-size:20px;
    line-height:1.5;
    font-weight:700;
    color:var(--ink-900);
    margin:0 0 8px;
    transition:color .22s ease;
  }
  .timeline-item:hover .timeline-title{color:var(--brand-700);}
  .timeline-desc{
    font-size:15px;
    line-height:1.85;
    color:var(--ink-600);
    margin:0;
  }
  .timeline-arrow{
    align-self:center;
    font-size:20px;
    color:var(--accent-500);
    opacity:0;
    transform:translateX(-6px);
    transition:opacity .22s ease,transform .22s ease;
  }
  .timeline-item:hover .timeline-arrow{opacity:1;transform:translateX(0);}

  /* ============ 订阅带 ============ */
  .subscribe-section{
    background:var(--paper);
    padding:0 0 96px;
  }
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:28px;
    padding:56px;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:44px;
    align-items:center;
    color:var(--ink-invert);
    background:linear-gradient(120deg,#0A251F 0%,#1E8A66 62%,#5FD3A6 100%);
    box-shadow:var(--shadow-lg);
  }
  .cta-band::before{
    content:"";
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:100% 44px;
    pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-title{
    font-size:clamp(22px,2.6vw,32px);
    line-height:1.32;
    font-weight:700;
    margin:0 0 12px;
    color:#fff;
  }
  .cta-desc{
    font-size:15px;
    line-height:1.85;
    color:rgba(242,247,243,.82);
    margin:0;
  }
  .subscribe-form{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
  }
  .subscribe-input{
    flex:1 1 200px;
    height:48px;
    padding:0 18px;
    border-radius:var(--radius-sm);
    border:1px solid rgba(255,255,255,.34);
    background:rgba(255,255,255,.12);
    color:#fff;
    font-size:15px;
    outline:none;
    transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .subscribe-input::placeholder{color:rgba(242,247,243,.66);}
  .subscribe-input:focus{
    border-color:var(--accent-500);
    background:rgba(255,255,255,.18);
    box-shadow:0 0 0 3px rgba(255,122,69,.28);
  }
  .form-tip{
    width:100%;
    font-size:13px;
    line-height:1.7;
    color:rgba(242,247,243,.72);
    margin:2px 0 0;
  }
  .form-tip.is-ok{color:var(--brand-300);font-weight:600;}

  /* ============ FAQ ============ */
  .faq-section{
    background:var(--paper-2);
    padding:88px 0 96px;
  }
  .faq-inner{max-width:760px;margin:0 auto;}
  .faq-head{text-align:center;margin-bottom:34px;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .22s ease,box-shadow .22s ease;
  }
  .faq-item:hover{border-color:#c9d8ce;}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    font-size:17px;
    font-weight:700;
    color:var(--ink-900);
    transition:color .2s ease,box-shadow .22s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:focus-visible{outline:2px solid var(--accent-500);outline-offset:-2px;border-radius:12px;}
  .faq-item summary::after{
    content:"+";
    font-size:22px;
    line-height:1;
    font-weight:400;
    color:var(--brand-500);
    transition:transform .26s ease,color .26s ease;
  }
  .faq-item[open] summary::after{
    transform:rotate(45deg);
    color:var(--accent-500);
  }
  .faq-item[open] summary{box-shadow:inset 3px 0 0 var(--accent-500);}
  .faq-item[open]{border-color:#cadfd3;box-shadow:var(--shadow-sm);}
  .faq-answer{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.9;
    color:var(--ink-600);
    margin:0;
  }

  /* ============ 返回 ============ */
  .back-section{
    background:var(--paper);
    padding:56px 0 80px;
  }
  .back-inner{
    max-width:900px;
    margin:0 auto;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding-top:28px;
    border-top:1px solid var(--line);
  }
  .back-text{
    font-size:15px;
    color:var(--ink-600);
    margin:0;
  }
  .textlink{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:15px;
    font-weight:700;
    color:var(--brand-700);
    transition:color .2s ease,gap .2s ease;
  }
  .textlink .arrow{transition:transform .2s ease;}
  .textlink:hover{color:var(--brand-500);}
  .textlink:hover .arrow{transform:translateX(4px);}
  .textlink:active{color:var(--brand-900);}
  .textlink:focus-visible{outline:2px solid var(--accent-500);outline-offset:4px;border-radius:4px;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--brand-900);
    color:var(--ink-invert);
    padding:72px 0 28px;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .site-footer .container{
    max-width:1280px;
    margin:0 auto;
    padding-left:32px;
    padding-right:32px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:44px;
  }
  .site-footer .logo-text{color:#fff;}
  .footer-text{
    font-size:14px;
    line-height:1.85;
    color:rgba(242,247,243,.70);
    margin:16px 0 12px;
  }
  .footer-addr{
    font-size:13px;
    color:rgba(242,247,243,.50);
    margin:0;
    font-variant-numeric:tabular-nums;
  }
  .footer-col h3{
    font-size:14px;
    font-weight:700;
    color:var(--brand-300);
    margin:0 0 16px;
  }
  .footer-col ul{
    list-style:none;
    margin:0;
    padding:0;
    display:grid;
    gap:10px;
  }
  .footer-col a,.footer-col span{
    font-size:14px;
    color:rgba(242,247,243,.70);
    transition:color .2s ease;
  }
  .footer-col a:hover{color:#fff;}
  .footer-col a:active{color:var(--brand-300);}
  .footer-col a:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:4px;}
  .footer-bottom{
    margin-top:48px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:rgba(242,247,243,.55);
  }
  .footer-bottom p{margin:0;}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-links{display:none;}
    .header-textlink{display:none;}
    .nav-toggle{display:inline-flex;}
    .intro-grid{
      grid-template-columns:1fr;
      gap:34px;
    }
    .intro-figure{order:-1;}
    .cta-band{
      grid-template-columns:1fr;
      padding:40px;
      gap:28px;
    }
    .footer-grid{
      grid-template-columns:1fr 1fr;
      gap:32px;
    }
    .cat-hero{padding-top:118px;padding-bottom:46px;}
  }

  @media (max-width:768px){
    .site-body{font-size:15px;}
    .container{padding-left:20px;padding-right:20px;}
    .site-footer .container{padding-left:20px;padding-right:20px;}
    .header-inner{height:66px;gap:14px;}
    .logo-mark{width:34px;height:34px;font-size:18px;border-radius:10px;}
    .logo-text{font-size:17px;}
    .btn-primary{height:40px;padding:0 16px;font-size:14px;}
    .intro-section{padding:56px 0 52px;}
    .timeline-section{padding:56px 0 60px;}
    .faq-section{padding:56px 0 64px;}
    .subscribe-section{padding:0 0 60px;}
    .back-section{padding:36px 0 56px;}
    .cat-hero{padding-top:102px;padding-bottom:40px;}
    .hero-sub{font-size:16px;}
    .hero-title{max-width:100%;}
    .timeline-item{
      grid-template-columns:52px 1fr;
      gap:14px;
      padding:20px 8px;
    }
    .timeline-num{width:52px;height:52px;font-size:16px;}
    .timeline-arrow{display:none;}
    .timeline-title{font-size:18px;}
    .timeline-desc{font-size:14px;}
    .cta-band{padding:30px 22px;border-radius:22px;}
    .faq-item summary{padding:17px 18px;font-size:16px;}
    .faq-answer{padding:0 18px 18px;font-size:14.5px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .site-footer{padding:56px 0 24px;}
    .back-inner{flex-direction:column;align-items:flex-start;}
  }

  @media (max-width:520px){
    .hero-badges .badge{font-size:12px;padding:4px 10px;}
    .stat-row .badge{font-size:12px;}
    .subscribe-form{flex-direction:column;}
    .subscribe-form .btn{width:100%;}
    .subscribe-input{width:100%;height:46px;}
    .cta-title{font-size:21px;}
  }