/* roulang page: index */
:root{
  --brand-1:#12C6A0;
  --brand-2:#38D9C0;
  --brand-3:#7C5CFF;
  --sun:#FF7A45;
  --ink-900:#0D1F1C;
  --ink-700:#2A3F3B;
  --ink-500:#5A6E6A;
  --mist-50:#F6F8F7;
  --mist-100:#EAF4F1;
  --line:#DCE7E4;
  --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
  --grad-sun:linear-gradient(118deg,#FF7A45 0%,#FF9A62 100%);
  --shadow-sm:0 8px 24px rgba(13,31,28,.05);
  --shadow-lg:0 18px 44px rgba(18,198,160,.16);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink-700);
  background:var(--mist-50);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-1);text-decoration:underline;text-underline-offset:4px;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);}
p{margin:0;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (max-width:1023px){body{padding-bottom:76px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:56px;background:#fff;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);box-shadow:0 6px 20px rgba(13,31,28,.06);}
.header-inner{display:flex;align-items:center;gap:16px;height:56px;}
@media (min-width:1024px){.site-header{height:68px;}.header-inner{height:68px;gap:24px;}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:800;
  letter-spacing:-.5px;flex-shrink:0;
}
@media (min-width:1024px){.logo-mark{width:38px;height:38px;}}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:15px;font-weight:800;color:var(--ink-900);letter-spacing:.2px;}
@media (min-width:1024px){.logo-main{font-size:16px;}}
.logo-sub{font-size:11px;color:var(--ink-500);}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 10px;font-size:14px;color:var(--ink-700);border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--brand-1);background:var(--mist-100);text-decoration:none;}
.nav-link.active{color:var(--brand-1);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:3px;
  border-radius:2px;background:var(--grad);
}
.header-actions{display:none;}
@media (min-width:1024px){.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}}
.menu-toggle{
  margin-left:auto;width:44px;height:44px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;cursor:pointer;
  color:var(--ink-700);transition:border-color .2s var(--ease),color .2s var(--ease);
}
.menu-toggle:hover{border-color:var(--brand-1);color:var(--brand-1);}
@media (min-width:1024px){.menu-toggle{display:none;}}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateY(-100%);transition:transform .34s var(--ease);
  display:flex;flex-direction:column;padding:16px 20px 32px;
  visibility:hidden;
}
.drawer.open{transform:translateY(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  font-size:22px;line-height:1;color:var(--ink-700);cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding-top:12px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:16px;color:var(--ink-700);border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{text-decoration:none;color:var(--brand-1);}
.drawer-nav a.active{color:var(--brand-1);font-weight:600;}
.drawer-nav a span.go{color:var(--ink-500);font-size:14px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,198,160,.24);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,198,160,.3);}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.7);color:#fff;}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.24);transform:translateY(-2px);}
.btn-outline{background:#fff;border-color:var(--brand-1);color:var(--brand-1);}
.btn-outline:hover{color:var(--brand-1);background:var(--mist-100);}
.btn-sun{background:var(--grad-sun);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.26);}
.btn-sun:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,122,69,.3);}
.btn:active{transform:translateY(1px);filter:brightness(.96);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-1);}
.text-link .arrow{transition:transform .22s var(--ease);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{position:relative;margin-top:56px;overflow:hidden;background:var(--ink-900);color:#fff;}
@media (min-width:1024px){.hero{margin-top:68px;}}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(118deg,rgba(18,198,160,.90) 0%,rgba(56,217,192,.85) 46%,rgba(124,92,255,.88) 100%);}
.hero-inner{position:relative;z-index:2;display:grid;gap:36px;padding-top:48px;padding-bottom:40px;}
@media (min-width:1024px){.hero-inner{grid-template-columns:1.12fr .88fr;align-items:center;gap:48px;padding-top:76px;padding-bottom:60px;}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.14);
  font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:18px;
}
.hero h1{
  color:#fff;font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;
  letter-spacing:-.5px;margin-bottom:16px;
}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.9);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:#fff;
  border:1px solid rgba(255,255,255,.36);background:rgba(255,255,255,.13);
}
.pill .dot{width:6px;height:6px;border-radius:999px;background:#fff;flex-shrink:0;}
.hero-media{border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.3);box-shadow:0 24px 60px rgba(13,31,28,.3);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-strip{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.24);background:rgba(13,31,28,.24);}
.hero-strip-inner{display:flex;gap:24px;overflow-x:auto;padding:18px 0;scrollbar-width:none;}
.hero-strip-inner::-webkit-scrollbar{display:none;}
.strip-item{display:flex;flex-direction:column;gap:2px;flex:0 0 auto;min-width:142px;}
.strip-num{font-size:22px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.strip-label{font-size:13px;color:rgba(255,255,255,.8);}
@media (min-width:1024px){
  .hero-strip-inner{justify-content:space-between;overflow:visible;padding:22px 0;}
  .strip-item{flex:1 1 0;min-width:0;}
  .strip-num{font-size:26px;}
}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:var(--mist-100);}
.section-head{max-width:800px;margin-bottom:32px;}
@media (min-width:1024px){.section-head{margin-bottom:48px;}}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:12px;}
.section-head h2::after{content:"";display:block;width:40px;height:4px;border-radius:2px;background:var(--grad);margin-top:14px;}
.section-head p{color:var(--ink-500);font-size:16px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;max-width:none;}
.section-head-row .text-link{padding-bottom:6px;}

/* ---------- stats ---------- */
.stats-grid{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));}
@media (min-width:768px){.stats-grid{gap:20px;}}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--brand-1);box-shadow:var(--shadow-lg);}
.stat-value{font-size:clamp(28px,3.6vw,42px);font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-unit{font-size:14px;font-weight:600;color:var(--brand-1);margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-500);line-height:1.6;}
.bar{margin-top:16px;height:8px;border-radius:999px;background:var(--mist-100);overflow:hidden;display:flex;}
.bar i{display:block;height:100%;border-radius:999px;}
.bar .b1{background:var(--brand-1);}
.bar .b2{background:var(--brand-3);}

/* ---------- bento ---------- */
.bento{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:768px){.bento{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (min-width:1024px){.bento{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}.bento-wide{grid-column:span 2;}}
.bento-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--brand-1);box-shadow:var(--shadow-lg);}
.bento-media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;margin-bottom:4px;}
.bento-media img{width:100%;height:100%;object-fit:cover;}
.icon-box{
  width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;
  background:rgba(18,198,160,.12);color:var(--brand-1);flex-shrink:0;
}
.icon-box svg{width:22px;height:22px;stroke-width:1.8;}
.bento-card h3{font-size:18px;font-weight:600;line-height:1.4;}
@media (min-width:1024px){.bento-wide h3{font-size:22px;}}
.bento-card p{font-size:15px;color:var(--ink-500);line-height:1.75;}
.bento-card .text-link{margin-top:auto;font-size:14px;}

/* ---------- compare ---------- */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.compare-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:680px;border-collapse:collapse;}
table.compare thead th{
  position:sticky;top:0;z-index:2;background:var(--mist-100);text-align:left;
  font-size:14px;font-weight:700;color:var(--ink-900);padding:16px 20px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare td{
  padding:16px 20px;border-bottom:1px solid var(--line);font-size:15px;
  color:var(--ink-700);vertical-align:top;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover td{background:var(--mist-50);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:999px;background:currentColor;flex-shrink:0;}
.badge-good{color:var(--brand-1);background:rgba(18,198,160,.1);border:1px solid rgba(18,198,160,.32);}
.badge-warn{color:var(--sun);background:rgba(255,122,69,.1);border:1px solid rgba(255,122,69,.32);}
.badge-violet{color:var(--brand-3);background:rgba(124,92,255,.1);border:1px solid rgba(124,92,255,.3);}

/* ---------- steps ---------- */
.steps{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--brand-1);box-shadow:var(--shadow-lg);}
.step-num{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  font-weight:700;font-size:15px;display:grid;place-items:center;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-500);line-height:1.75;}

/* ---------- quotes ---------- */
.quotes{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.quotes{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.quote:hover{transform:translateY(-4px);border-color:var(--brand-1);box-shadow:var(--shadow-lg);}
.quote p{font-size:15px;color:var(--ink-700);line-height:1.8;}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--ink-500);}
.avatar{
  width:36px;height:36px;border-radius:999px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;flex-shrink:0;
}

/* ---------- news ---------- */
.news-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);color:inherit;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{
  color:inherit;text-decoration:none;transform:translateY(-4px);
  border-color:var(--brand-1);box-shadow:var(--shadow-lg);
}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--mist-100);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-cat{
  align-self:flex-start;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--brand-1);background:rgba(18,198,160,.1);border:1px solid rgba(18,198,160,.3);
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;color:var(--ink-500);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--ink-500);
}
.news-more{color:var(--brand-1);font-weight:600;}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state .icon-box{margin:0 auto 16px;}
.empty-state h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.empty-state p{color:var(--ink-500);font-size:15px;margin-bottom:18px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:940px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .22s var(--ease);
}
.faq-item[open]{border-color:rgba(18,198,160,.42);}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;min-height:56px;
  padding:18px 56px 18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
  display:flex;align-items:center;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-1);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-item summary:hover{color:var(--brand-1);}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.85;}

/* ---------- cta form ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.cta-grid{position:relative;z-index:2;display:grid;gap:32px;padding:56px 0;}
@media (min-width:1024px){.cta-grid{grid-template-columns:.9fr 1.1fr;align-items:start;gap:56px;padding:88px 0;}}
.cta-grid h2{color:#fff;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:14px;}
.cta-grid .cta-lead{color:rgba(255,255,255,.82);font-size:16px;margin-bottom:24px;}
.cta-points{display:grid;gap:14px;list-style:none;padding:0;margin:0;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86);}
.cta-points .tick{
  width:24px;height:24px;border-radius:999px;background:rgba(18,198,160,.22);
  border:1px solid rgba(56,217,192,.55);display:grid;place-items:center;flex-shrink:0;margin-top:3px;
  color:var(--brand-2);font-size:13px;font-weight:700;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:0 24px 60px rgba(13,31,28,.22);color:var(--ink-700);
}
@media (min-width:768px){.form-card{padding:32px;}}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:14px;font-weight:600;color:var(--ink-700);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;background:#fff;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(18,198,160,.18);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  position:relative;display:inline-flex;align-items:center;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);font-size:14px;color:var(--ink-700);cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip:hover{border-color:var(--brand-1);color:var(--brand-1);}
.chip:has(input:checked){border-color:var(--brand-1);background:rgba(18,198,160,.1);color:var(--brand-1);font-weight:600;}
.form-note{margin-top:12px;font-size:13px;color:var(--ink-500);line-height:1.7;}
.form-success{
  margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);font-size:14px;
  color:#0E7C64;background:rgba(18,198,160,.12);border:1px solid rgba(18,198,160,.35);
}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink-900);color:rgba(255,255,255,.72);padding-top:56px;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:8px 8px;opacity:.6;pointer-events:none;
}
.footer-grid{position:relative;z-index:2;display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.site-footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px;}
.site-footer a:hover{color:var(--brand-2);text-decoration:none;}
.footer-brand .logo-main{color:#fff;font-size:17px;}
.footer-brand .logo-sub{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-contact{display:grid;gap:10px;margin-top:18px;font-size:14px;color:rgba(255,255,255,.62);}
.footer-bottom{
  position:relative;z-index:2;margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- mobile tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;background:#fff;
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){.mobile-tab{display:none;}}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  height:60px;font-size:11px;color:var(--ink-500);transition:color .2s var(--ease);
}
.tab-item:hover{text-decoration:none;color:var(--brand-1);}
.tab-item.active{color:var(--brand-1);font-weight:600;}
.tab-item svg{width:22px;height:22px;stroke-width:1.8;}

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

/* roulang page: article */
:root{
    --brand-1:#12C6A0;
    --brand-2:#38D9C0;
    --brand-3:#7C5CFF;
    --sun:#FF7A45;
    --ink-900:#0D1F1C;
    --ink-700:#2A3F3B;
    --ink-500:#5A6E6A;
    --mist-50:#F6F8F7;
    --mist-100:#EAF4F1;
    --line:#DCE7E4;
    --brand-grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
    --sun-grad:linear-gradient(118deg,#FF7A45 0%,#FF9A6B 100%);
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow-1:0 8px 24px rgba(13,31,28,.05);
    --shadow-2:0 18px 44px rgba(18,198,160,.16);
    --ease:cubic-bezier(.4,0,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink-700);
    background:var(--mist-50);
    padding-top:56px;
    padding-bottom:76px;
    -webkit-font-smoothing:antialiased;
  }
  @media (min-width:1024px){
    body{padding-top:68px;padding-bottom:0}
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  a:hover{color:var(--brand-1);text-decoration:underline;text-underline-offset:4px}
  button{font-family:inherit}
  :focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
  h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){.container{padding:0 32px}}

  /* ---------- header ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:90;
    background:#fff;border-bottom:1px solid var(--line);
    transition:background .25s var(--ease),box-shadow .25s var(--ease);
  }
  .site-header.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);box-shadow:0 6px 24px rgba(13,31,28,.07)}
  .header-inner{display:flex;align-items:center;gap:16px;height:56px}
  @media (min-width:1024px){.header-inner{height:68px;gap:24px}}
  .brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
  .brand:hover{text-decoration:none}
  .logo-main{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:.01em}
  @media (min-width:1024px){.logo-main{font-size:18px}}
  .logo-sub{font-size:11px;color:var(--ink-500);letter-spacing:.02em}
  .main-nav{display:none}
  @media (min-width:1024px){
    .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
  }
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    padding:10px 12px;border-radius:10px;
    font-size:14px;font-weight:500;color:var(--ink-700);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--brand-1);background:var(--mist-100);text-decoration:none}
  .nav-link.active{color:var(--brand-1);font-weight:600}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
    border-radius:999px;background:var(--brand-grad);
  }
  .header-actions{display:none}
  @media (min-width:1024px){.header-actions{display:flex;align-items:center;gap:10px;margin-left:12px}}
  .nav-toggle{
    margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
    background:#fff;color:var(--ink-700);cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--brand-1);color:var(--brand-1)}
  @media (min-width:1024px){.nav-toggle{display:none}}

  .drawer{
    position:fixed;top:56px;left:0;right:0;bottom:0;z-index:85;
    background:#fff;padding:16px 20px 32px;
    display:flex;flex-direction:column;gap:6px;
    transform:translateX(102%);transition:transform .28s var(--ease);
    overflow-y:auto;
  }
  body.drawer-open .drawer{transform:translateX(0)}
  @media (min-width:1024px){.drawer{display:none}}
  .drawer .nav-link{display:flex;min-height:48px;font-size:15px;border-radius:12px}
  .drawer .nav-link.active::after{left:12px;right:auto;width:24px}
  .drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:12px 24px;border-radius:999px;
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
  }
  .btn:hover{text-decoration:none}
  .btn:active{transform:translateY(1px);filter:brightness(.96)}
  .btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(18,198,160,.28)}
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(18,198,160,.34)}
  .btn-ghost{background:#fff;border-color:var(--brand-1);color:var(--brand-1)}
  .btn-ghost:hover{background:rgba(18,198,160,.08);color:var(--brand-1)}
  .btn-sun{background:var(--sun-grad);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28)}
  .btn-sun:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,122,69,.34)}
  .btn-sm{min-height:38px;padding:9px 18px;font-size:14px}
  .btn-block{width:100%}
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1)}
  .text-link .arrow{transition:transform .22s var(--ease)}
  .text-link:hover{text-decoration:none}
  .text-link:hover .arrow{transform:translateX(3px)}

  /* ---------- pill / badge ---------- */
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 14px;border-radius:999px;
    font-size:13px;font-weight:600;line-height:1.6;
  }
  .pill-brand{color:var(--brand-1);background:rgba(18,198,160,.1);border:1px solid rgba(18,198,160,.32)}
  .pill-violet{color:var(--brand-3);background:rgba(124,92,255,.1);border:1px solid rgba(124,92,255,.3)}
  .pill-sun{color:#C24E1F;background:rgba(255,122,69,.12);border:1px solid rgba(255,122,69,.34)}
  .pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}

  /* ---------- breadcrumb ---------- */
  .crumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-500)}
  .breadcrumb a{color:var(--ink-500)}
  .breadcrumb a:hover{color:var(--brand-1)}
  .breadcrumb .sep{color:var(--line)}
  .breadcrumb .current{
    color:var(--ink-700);font-weight:600;
    max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  @media (min-width:768px){.breadcrumb .current{max-width:420px}}

  /* ---------- article ---------- */
  .article-wrap{padding:32px 0 8px}
  @media (min-width:1024px){.article-wrap{padding:48px 0 16px}}
  .article-layout{display:block}
  @media (min-width:1024px){
    .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:48px;align-items:start}
  }
  .article-main{max-width:780px;margin:0 auto;width:100%}
  @media (min-width:1024px){.article-main{margin:0}}
  .article-head{padding-bottom:20px;border-bottom:1px solid var(--line)}
  .article-head h1{
    font-size:clamp(26px,4vw,40px);
    font-weight:800;line-height:1.28;letter-spacing:-.01em;
    margin:16px 0 14px;
  }
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:13.5px;color:var(--ink-500)}
  .article-meta span{display:inline-flex;align-items:center;gap:6px}
  .article-meta svg{flex-shrink:0}

  .article-body{padding:28px 0 8px;font-size:16px;line-height:1.85;color:var(--ink-700)}
  .article-body > p{margin:0 0 1.6em}
  .article-body h2{
    font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35;
    margin:40px 0 16px;padding-left:14px;position:relative;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.18em;width:4px;
    border-radius:999px;background:var(--brand-grad);
  }
  .article-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:28px 0 12px}
  .article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:1.4em}
  .article-body ul{list-style:disc}
  .article-body ol{list-style:decimal}
  .article-body li{margin-bottom:.55em}
  .article-body li::marker{color:var(--brand-1)}
  .article-body blockquote{
    margin:24px 0;padding:16px 20px;background:var(--mist-100);
    border-left:4px solid var(--brand-1);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
    color:var(--ink-500);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:16px;margin:24px 0 10px;width:100%;height:auto;object-fit:cover}
  .article-body figure{margin:24px 0}
  .article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px}
  .article-body a{color:var(--brand-1);font-weight:500}
  .article-body strong{color:var(--ink-900);font-weight:700}
  .article-body table{
    display:block;width:100%;overflow-x:auto;border-collapse:collapse;
    margin:24px 0;font-size:14.5px;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
  .article-body th{background:var(--mist-100);color:var(--ink-900);font-weight:600}
  .article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

  .article-foot{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:14px}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-right:auto}
  .tag{
    display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
    font-size:13px;color:var(--ink-700);background:#fff;border:1px solid var(--line);
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .tag:hover{border-color:var(--brand-1);color:var(--brand-1);text-decoration:none}

  .article-aside{display:none}
  @media (min-width:1024px){
    .article-aside{display:block;position:sticky;top:96px}
  }
  .toc-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);padding:20px;
  }
  .toc-card h2{font-size:14px;font-weight:600;color:var(--ink-900);letter-spacing:.04em;margin-bottom:12px}
  .toc-card li{margin-bottom:4px}
  .toc-link{
    display:block;padding:7px 10px;border-radius:10px;
    font-size:13.5px;color:var(--ink-500);
    border-left:2px solid transparent;
    transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
  }
  .toc-link:hover{color:var(--brand-1);background:var(--mist-100);text-decoration:none;border-left-color:var(--brand-1)}
  .toc-link.current{color:var(--brand-1);background:rgba(18,198,160,.08);border-left-color:var(--brand-1);font-weight:600}
  .aside-help{
    margin-top:16px;padding:20px;border-radius:var(--radius-md);
    background:var(--mist-100);border:1px solid var(--line);
  }
  .aside-help h2{font-size:14px;font-weight:600;margin-bottom:8px}
  .aside-help p{font-size:13.5px;color:var(--ink-500);margin-bottom:14px}

  .empty-state{
    margin:32px 0;padding:40px 24px;text-align:center;
    background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  }
  .empty-icon{
    width:52px;height:52px;margin:0 auto 16px;border-radius:16px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(18,198,160,.12);color:var(--brand-1);
  }
  .empty-state h2{font-size:19px;margin-bottom:8px}
  .empty-state p{font-size:14px;color:var(--ink-500);margin-bottom:20px}

  /* ---------- sections ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:88px 0}}
  .section-alt{background:var(--mist-100)}
  .section-head{margin-bottom:32px}
  .section-head h2{
    font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;
    display:inline-block;position:relative;padding-bottom:14px;
  }
  .section-head h2::after{
    content:"";position:absolute;left:0;bottom:0;width:40px;height:4px;
    border-radius:999px;background:var(--brand-grad);
  }
  .section-head p{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:640px}
  .section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

  .card-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}

  .card{
    display:flex;flex-direction:column;background:#fff;
    border:1px solid var(--line);border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);overflow:hidden;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-1)}
  .card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--mist-100)}
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
  .card:hover .card-cover img{transform:scale(1.04)}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .card-body h3{font-size:17px;font-weight:600;line-height:1.5}
  .card-body p{font-size:14px;color:var(--ink-500);line-height:1.75}
  .card-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500)}

  .require-form{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-1);padding:24px;
  }
  @media (min-width:768px){.require-form{padding:28px}}
  .form-row{display:grid;gap:16px;grid-template-columns:1fr}
  @media (min-width:640px){.form-row{grid-template-columns:repeat(2,1fr)}}
  .field{margin-bottom:16px}
  .field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-700);margin-bottom:8px}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;font-size:14px;font-family:inherit;color:var(--ink-700);
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-1);box-shadow:0 0 0 2px rgba(18,198,160,.18);
  }
  .field textarea{resize:vertical;min-height:104px;line-height:1.7}
  .form-note{font-size:12.5px;color:var(--ink-500);margin-top:12px;line-height:1.7}
  .form-success{
    display:none;margin-bottom:16px;padding:12px 16px;border-radius:var(--radius-sm);
    background:rgba(18,198,160,.12);border:1px solid rgba(18,198,160,.34);
    color:#0B7C64;font-size:14px;font-weight:600;
  }
  .form-success.show{display:block}

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    padding:32px 24px;color:#fff;
    background-image:linear-gradient(118deg,rgba(12,132,110,.94) 0%,rgba(28,190,160,.9) 48%,rgba(96,72,214,.9) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  @media (min-width:1024px){.cta-band{padding:48px 40px}}
  .cta-band h2{color:#fff;font-size:clamp(21px,2.6vw,30px);line-height:1.35;margin-bottom:12px}
  .cta-band p{color:rgba(255,255,255,.88);font-size:15px;max-width:620px;margin-bottom:22px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .btn-on-dark{background:#fff;color:var(--ink-900)}
  .btn-on-dark:hover{color:var(--ink-900);background:#fff;transform:translateY(-2px)}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

  /* ---------- footer ---------- */
  .site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:48px 0 24px;font-size:14px}
  @media (min-width:1024px){.site-footer{padding:64px 0 28px}}
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
  .footer-brand .logo-main{color:#fff;font-size:18px;display:block}
  .footer-brand .logo-sub{color:rgba(255,255,255,.5);display:block;margin-top:4px;font-size:12px}
  .footer-brand p{margin:16px 0 0;line-height:1.8;color:rgba(255,255,255,.66)}
  .footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:rgba(255,255,255,.6)}
  .site-footer h3{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px}
  .site-footer ul li{margin-bottom:10px}
  .site-footer a{color:rgba(255,255,255,.72)}
  .site-footer a:hover{color:var(--brand-2);text-decoration:none}
  .footer-bottom{
    margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.5);
  }

  /* ---------- mobile tabbar ---------- */
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:95;
    display:grid;grid-template-columns:repeat(4,1fr);
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  @media (min-width:768px){.tabbar{display:none}}
  .tab-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    height:60px;font-size:11px;color:var(--ink-500);
    transition:color .2s var(--ease);
  }
  .tab-item:hover{text-decoration:none;color:var(--brand-1)}
  .tab-item.active{color:var(--brand-1);font-weight:600}

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

/* roulang page: category1 */
:root{
    --brand-1:#12C6A0;
    --brand-2:#38D9C0;
    --brand-3:#7C5CFF;
    --sun:#FF7A45;
    --ink-900:#0D1F1C;
    --ink-700:#2A3F3B;
    --ink-500:#5A6E6A;
    --mist-50:#F6F8F7;
    --mist-100:#EAF4F1;
    --line:#DCE7E4;
    --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
    --grad-sun:linear-gradient(118deg,#FF7A45 0%,#FF9A62 100%);
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --shadow-1:0 8px 24px rgba(13,31,28,.05);
    --shadow-2:0 18px 44px rgba(18,198,160,.16);
    --ease:cubic-bezier(.4,0,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--mist-50);
    color:var(--ink-700);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
  a:hover{color:var(--brand-1)}
  button{font-family:inherit;cursor:pointer}
  input,select,textarea{font-family:inherit;font-size:14px}
  h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
  p{margin:0 0 1.6em}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){ .container{padding:0 32px} }

  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:background .3s var(--ease),box-shadow .3s var(--ease);
  }
  .site-header.scrolled{
    background:rgba(255,255,255,.9);
    backdrop-filter:blur(10px);
    box-shadow:0 6px 22px rgba(13,31,28,.06);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;height:68px;
  }
  .brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;min-height:44px}
  .brand-logo{
    font-size:18px;font-weight:800;letter-spacing:.2px;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .brand-sub{font-size:11px;color:var(--ink-500);letter-spacing:.3px}
  .main-nav{display:none;align-items:center;gap:4px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    min-height:44px;padding:0 14px;border-radius:999px;
    font-size:14px;font-weight:600;color:var(--ink-700);
  }
  .nav-link:hover{color:var(--brand-1);background:var(--mist-100)}
  .nav-link.active{color:var(--ink-900)}
  .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
    border-radius:3px;background:var(--grad);
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .header-actions .btn{padding:11px 20px;font-size:14px}
  .header-actions .btn-ghost{display:none}
  .burger{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
    background:#fff;color:var(--ink-700);
  }
  @media (min-width:1024px){
    .main-nav{display:flex}
    .burger{display:none}
    .header-actions .btn-ghost{display:inline-flex}
  }
  @media (max-width:767px){
    .header-inner{height:56px}
    .header-actions .btn{display:none}
  }

  /* 移动端抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:120;background:#fff;
    padding:20px;display:none;flex-direction:column;gap:6px;
    overflow-y:auto;
  }
  .drawer.open{display:flex}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
  .drawer .nav-link{
    width:100%;justify-content:flex-start;border-radius:14px;
    padding:0 16px;height:52px;font-size:16px;border:1px solid var(--line);
  }
  .drawer .nav-link.active{border-color:var(--brand-1);background:var(--mist-100)}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:14px 28px;border-radius:999px;border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  }
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(18,198,160,.28)}
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,198,160,.34)}
  .btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
  .btn-sun{background:var(--grad-sun);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28)}
  .btn-sun:hover{color:#fff;transform:translateY(-2px)}
  .btn-ghost{background:#fff;color:var(--brand-1);border-color:var(--brand-1)}
  .btn-ghost:hover{color:#fff;background:var(--brand-1);transform:translateY(-2px)}
  .btn-plain{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
  .btn-plain:hover{color:var(--ink-900);background:#fff;border-color:#fff}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);
  }
  .text-link span{transition:transform .22s var(--ease)}
  .text-link:hover span{transform:translateX(3px)}

  /* ============ 页面 Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;
    background:var(--mist-100);
    border-bottom:1px solid var(--line);
    padding:44px 0 40px;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(13,31,28,.16) 1px,transparent 1px);
    background-size:16px 16px;opacity:.35;pointer-events:none;
  }
  .page-hero::after{
    content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
    border-radius:50%;background:radial-gradient(circle,rgba(18,198,160,.16),transparent 66%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;display:grid;gap:26px}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
  .crumb a{color:var(--ink-500)}
  .crumb a:hover{color:var(--brand-1)}
  .crumb .sep{opacity:.6}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
    font-size:13px;font-weight:600;color:var(--brand-1);
  }
  .hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block}
  .page-hero h1{
    font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;margin:16px 0 12px;
  }
  .page-hero h1 em{
    font-style:normal;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{font-size:16px;color:var(--ink-500);max-width:660px;margin:0}
  .anchor-pills{display:flex;flex-wrap:wrap;gap:10px}
  .anchor-pill{
    display:inline-flex;align-items:center;min-height:40px;padding:8px 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-700);
    transition:all .22s var(--ease);
  }
  .anchor-pill:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1)}
  @media (min-width:1024px){
    .page-hero{padding:60px 0 52px}
    .hero-inner{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:40px}
    .anchor-pills{flex-direction:column;align-items:flex-end}
  }

  /* ============ 区块 ============ */
  .section{padding:56px 0}
  .section-alt{background:var(--mist-100)}
  .section-white{background:#fff}
  @media (min-width:1024px){ .section{padding:88px 0} }
  .section-head{max-width:760px;margin-bottom:32px}
  .section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:14px}
  .section-head h2::after{
    content:"";display:block;width:40px;height:4px;border-radius:3px;background:var(--grad);margin-top:14px;
  }
  .section-head p{color:var(--ink-500);margin:14px 0 0}

  /* ============ 卡片与数据 ============ */
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:24px;box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-1)}
  .stat-card .stat-label{font-size:13px;color:var(--ink-500);margin:0 0 2px}
  .stat-value{
    font-size:clamp(32px,4vw,44px);font-weight:800;line-height:1.1;color:var(--ink-900);
    font-variant-numeric:tabular-nums;letter-spacing:-.5px;
  }
  .stat-value small{font-size:15px;font-weight:600;color:var(--ink-500);margin-left:4px}
  .stat-desc{font-size:13.5px;color:var(--ink-500);margin:10px 0 0;line-height:1.7}
  .bar{height:6px;border-radius:6px;background:var(--mist-100);overflow:hidden;margin-top:14px;display:flex}
  .bar i{display:block;height:100%;border-radius:6px}
  .bar .b1{background:var(--grad)}
  .bar .b2{background:var(--brand-3)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;
    background:rgba(18,198,160,.08);border:1px solid rgba(18,198,160,.45);color:#0B7C65;
  }
  .badge i{width:6px;height:6px;border-radius:50%;background:currentColor;display:block}
  .badge-violet{background:rgba(124,92,255,.08);border-color:rgba(124,92,255,.42);color:#5A3FE0}
  .badge-sun{background:rgba(255,122,69,.08);border-color:rgba(255,122,69,.45);color:#D2542A}

  /* ============ 双栏清单 ============ */
  .two-col{display:grid;gap:24px}
  @media (min-width:1024px){
    .two-col{grid-template-columns:360px minmax(0,1fr);gap:32px;align-items:start}
    .sticky-col{position:sticky;top:92px}
  }
  .check-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:26px;box-shadow:var(--shadow-1);
  }
  .check-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
  .check-card > p{font-size:14px;color:var(--ink-500);margin:0 0 18px}
  .spec-list{display:grid;gap:12px;margin-bottom:20px}
  .spec-list li{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--mist-50);
  }
  .spec-list span:first-child{font-size:13.5px;color:var(--ink-500)}
  .spec-list span:last-child{font-size:14px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums}

  .step-list{display:grid;gap:14px}
  .step-item{
    display:flex;gap:16px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:20px 22px;transition:all .22s var(--ease);
  }
  .step-item:hover{border-color:var(--brand-1);transform:translateY(-3px);box-shadow:var(--shadow-1)}
  .step-no{
    flex:0 0 auto;width:36px;height:36px;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;color:#fff;background:var(--grad);
    font-variant-numeric:tabular-nums;
  }
  .step-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
  .step-body p{font-size:14px;color:var(--ink-500);margin:0 0 10px}
  .step-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-500)}
  .step-meta .text-link{font-size:13px}

  /* ============ 图文区块 ============ */
  .media-split{display:grid;gap:24px;align-items:center}
  @media (min-width:1024px){ .media-split{grid-template-columns:1fr 1fr;gap:48px} }
  .media-figure{
    position:relative;border-radius:var(--r-lg);overflow:hidden;
    border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1);
  }
  .media-figure img{width:100%;height:300px;object-fit:cover}
  .media-figure figcaption{
    position:absolute;left:16px;bottom:16px;right:16px;
    background:rgba(13,31,28,.72);color:#fff;font-size:13px;
    padding:10px 14px;border-radius:var(--r-sm);backdrop-filter:blur(4px);
  }
  .media-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;margin-bottom:16px}
  .tip-grid{display:grid;gap:12px;margin-top:20px}
  @media (min-width:640px){ .tip-grid{grid-template-columns:1fr 1fr} }
  .tip-item{
    border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;background:var(--mist-50);
  }
  .tip-item strong{display:block;font-size:14.5px;color:var(--ink-900);margin-bottom:4px}
  .tip-item span{font-size:13px;color:var(--ink-500);line-height:1.7}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;transition:all .22s var(--ease);position:relative;
  }
  .faq-item[open]{border-color:var(--brand-1);box-shadow:var(--shadow-1)}
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
    background:var(--grad);opacity:0;transition:opacity .22s var(--ease);
  }
  .faq-item[open]::before{opacity:1}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
    gap:16px;min-height:56px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary .ico{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
    font-size:16px;line-height:1;color:var(--brand-1);
    transition:transform .25s var(--ease),background .25s var(--ease);
  }
  .faq-item[open] summary .ico{transform:rotate(180deg);background:var(--mist-100)}
  .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-500)}

  /* ============ CTA 表单 ============ */
  .cta-wrap{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-1);overflow:hidden;
  }
  .cta-grid{display:grid}
  @media (min-width:1024px){ .cta-grid{grid-template-columns:1fr 1fr} }
  .cta-copy{
    padding:28px 26px;
    background:linear-gradient(118deg,#0D1F1C 0%,#123A34 62%,#14443C 100%);
    color:#E7F3EF;position:relative;overflow:hidden;
  }
  .cta-copy::after{
    content:"";position:absolute;right:-80px;bottom:-110px;width:300px;height:300px;border-radius:50%;
    background:radial-gradient(circle,rgba(56,217,192,.28),transparent 68%);
  }
  .cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:14px;position:relative;z-index:2}
  .cta-copy p{color:rgba(231,243,239,.82);font-size:15px;position:relative;z-index:2}
  .cta-points{display:grid;gap:10px;margin-top:20px;position:relative;z-index:2}
  .cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(231,243,239,.92)}
  .cta-points li i{
    flex:0 0 auto;margin-top:7px;width:6px;height:6px;border-radius:50%;background:var(--brand-2);
  }
  .form-card{padding:28px 26px}
  .field{margin-bottom:16px}
  .field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-700);margin-bottom:8px}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
    background:var(--mist-50);color:var(--ink-900);line-height:1.6;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-1);background:#fff;
    box-shadow:0 0 0 2px rgba(18,198,160,.18);
  }
  .field textarea{resize:vertical;min-height:96px}
  .privacy-note{font-size:12.5px;color:var(--ink-500);margin:12px 0 0}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink-900);color:#C9D8D3;padding:56px 0 0;margin-top:0}
  .footer-grid{display:grid;gap:32px}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1fr 1fr} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px} }
  .logo-main{
    display:block;font-size:17px;font-weight:800;
    background:linear-gradient(118deg,#38D9C0 0%,#7C5CFF 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .logo-sub{display:block;font-size:11.5px;color:rgba(201,216,211,.6);margin-top:3px}
  .footer-brand p{font-size:14px;color:rgba(201,216,211,.78);line-height:1.8;margin:14px 0 0;max-width:380px}
  .footer-contact{display:grid;gap:6px;margin-top:16px;font-size:13.5px;color:rgba(201,216,211,.7)}
  .site-footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
  .site-footer ul{display:grid;gap:10px}
  .site-footer ul a{font-size:14px;color:rgba(201,216,211,.8)}
  .site-footer ul a:hover{color:var(--brand-2)}
  .footer-bottom{
    margin-top:40px;border-top:1px solid rgba(255,255,255,.1);
    padding:18px 0 24px;display:flex;flex-wrap:wrap;gap:8px 20px;
    justify-content:space-between;font-size:12.5px;color:rgba(201,216,211,.6);
  }

  /* ============ 移动端底部 Tab ============ */
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px rgba(13,31,28,.05);
  }
  .tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);height:60px}
  .tab-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11.5px;color:var(--ink-500);
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
  .tab-item.active{color:var(--brand-1);font-weight:600}
  .tab-item:hover{color:var(--brand-1)}
  @media (max-width:767px){
    .tabbar{display:block}
    body{padding-bottom:76px}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }

/* roulang page: category2 */
:root{
    --brand-1:#12C6A0;
    --brand-2:#38D9C0;
    --brand-3:#7C5CFF;
    --sun:#FF7A45;
    --ink-900:#0D1F1C;
    --ink-700:#2A3F3B;
    --ink-500:#5A6E6A;
    --mist-50:#F6F8F7;
    --mist-100:#EAF4F1;
    --line:#DCE7E4;
    --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
    --radius-xl:28px;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow-1:0 8px 24px rgba(13,31,28,.05);
    --shadow-2:0 18px 44px rgba(18,198,160,.16);
    --header-h:56px;
    --ease:cubic-bezier(.4,0,.2,1);
  }
  @media (min-width:1024px){
    :root{ --header-h:68px; }
  }

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

  html{ scroll-behavior:smooth; }

  body{
    margin:0;
    padding-top:var(--header-h);
    padding-bottom:76px;
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink-700);
    background:var(--mist-50);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  @media (min-width:1024px){
    body{ padding-bottom:0; }
  }

  img{ max-width:100%; display:block; }
  a{ color:var(--ink-700); text-decoration:none; transition:color .2s var(--ease); }
  a:hover{ color:var(--brand-1); text-decoration:underline; text-underline-offset:4px; }
  button{ font-family:inherit; }
  h1,h2,h3,h4,p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  :focus-visible{ outline:2px solid var(--brand-1); outline-offset:2px; border-radius:8px; }

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:1024px){
    .container{ padding:0 32px; }
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:fixed;
    top:0; left:0; right:0;
    height:var(--header-h);
    z-index:80;
    background:#ffffff;
    border-bottom:1px solid var(--line);
    transition:background .25s var(--ease), box-shadow .25s var(--ease);
  }
  .site-header.scrolled{
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    box-shadow:0 6px 20px rgba(13,31,28,.07);
  }
  .header-inner{
    height:var(--header-h);
    display:flex;
    align-items:center;
    gap:14px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex:0 0 auto;
    text-decoration:none;
  }
  .brand:hover{ text-decoration:none; }
  .brand-mark{
    width:38px; height:38px;
    border-radius:12px;
    background:var(--grad);
    color:#fff;
    font-weight:800;
    font-size:18px;
    display:grid;
    place-items:center;
    flex:0 0 auto;
  }
  .brand-text{ display:flex; flex-direction:column; }
  .logo-main{
    display:block;
    font-size:17px;
    font-weight:800;
    line-height:1.2;
    color:var(--ink-900);
    letter-spacing:.01em;
  }
  .logo-sub{
    display:block;
    font-size:12px;
    line-height:1.4;
    color:var(--ink-500);
    white-space:nowrap;
  }

  .main-nav{ display:none; }
  @media (min-width:1024px){
    .main-nav{
      display:flex;
      align-items:center;
      gap:2px;
      margin-left:auto;
    }
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:40px;
    padding:8px 12px;
    border-radius:10px;
    font-size:15px;
    font-weight:600;
    color:var(--ink-700);
    white-space:nowrap;
  }
  .nav-link:hover{
    color:var(--brand-1);
    background:var(--mist-100);
    text-decoration:none;
  }
  .nav-link.active{ color:var(--brand-1); }
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:12px; right:12px; bottom:0;
    height:3px;
    border-radius:999px;
    background:var(--grad);
  }

  .header-actions{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }
  @media (min-width:1024px){
    .header-actions{ margin-left:0; }
  }
  .hide-mobile{ display:none; }
  @media (min-width:1024px){
    .hide-mobile{ display:inline-flex; }
  }
  .menu-toggle{
    display:inline-grid;
    place-items:center;
    width:44px; height:44px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--ink-700);
    cursor:pointer;
    transition:border-color .2s var(--ease), background .2s var(--ease);
  }
  .menu-toggle:hover{ border-color:var(--brand-1); background:var(--mist-100); }
  @media (min-width:1024px){
    .menu-toggle{ display:none; }
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:12px 26px;
    border-radius:999px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    text-decoration:none;
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
  }
  .btn:hover{ text-decoration:none; }
  .btn-primary{
    background:var(--grad);
    color:#fff;
    box-shadow:0 10px 24px rgba(18,198,160,.28);
  }
  .btn-primary:hover{
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 16px 34px rgba(18,198,160,.34);
  }
  .btn-primary:active{ transform:translateY(0); filter:brightness(.96); }
  .btn-ghost{
    background:#fff;
    border-color:var(--brand-1);
    color:var(--brand-1);
  }
  .btn-ghost:hover{
    background:var(--mist-100);
    color:var(--brand-1);
    transform:translateY(-2px);
  }
  .btn-ghost:active{ transform:translateY(0); filter:brightness(.96); }
  .btn-sm{
    min-height:40px;
    padding:9px 18px;
    font-size:14px;
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:rgba(13,31,28,.45);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s var(--ease), visibility .25s var(--ease);
  }
  .drawer.open{ opacity:1; visibility:visible; }
  .drawer-panel{
    position:absolute;
    top:0; right:0;
    width:min(88%,360px);
    height:100%;
    background:#fff;
    padding:18px 20px 32px;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .3s var(--ease);
  }
  .drawer.open .drawer-panel{ transform:translateX(0); }
  .drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-bottom:16px;
    border-bottom:1px solid var(--line);
  }
  .drawer-close{
    width:44px; height:44px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#fff;
    font-size:22px;
    line-height:1;
    color:var(--ink-500);
    cursor:pointer;
  }
  .drawer-close:hover{ border-color:var(--brand-1); color:var(--brand-1); }
  .drawer-nav{
    display:flex;
    flex-direction:column;
    gap:8px;
    margin-top:18px;
  }
  .drawer-nav a{
    display:flex;
    align-items:center;
    min-height:48px;
    padding:12px 16px;
    border-radius:14px;
    border:1px solid var(--line);
    font-size:15px;
    font-weight:600;
    color:var(--ink-700);
  }
  .drawer-nav a:hover{ text-decoration:none; border-color:var(--brand-1); color:var(--brand-1); }
  .drawer-nav a.active{ border-color:var(--brand-1); color:var(--brand-1); background:var(--mist-100); }

  /* ---------- 移动底部 Tab ---------- */
  .tabbar{
    position:fixed;
    left:0; right:0; bottom:0;
    z-index:80;
    display:flex;
    background:#fff;
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  @media (min-width:1024px){
    .tabbar{ display:none; }
  }
  .tab-item{
    flex:1;
    min-height:60px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    font-size:12px;
    font-weight:600;
    color:var(--ink-500);
  }
  .tab-item:hover{ text-decoration:none; color:var(--brand-1); }
  .tab-item svg{ width:22px; height:22px; }
  .tab-item.active{ color:var(--brand-1); }

  /* ---------- 区块 ---------- */
  .section{ padding:56px 0; }
  @media (min-width:1024px){
    .section{ padding:88px 0; }
  }
  .section-alt{ background:var(--mist-100); }

  .h1{
    font-size:clamp(28px,4.4vw,46px);
    font-weight:800;
    line-height:1.22;
    color:var(--ink-900);
    letter-spacing:-.01em;
    margin:14px 0 14px;
  }
  .h1 .hl{
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .h2{
    font-size:clamp(22px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
    color:var(--ink-900);
    margin-bottom:12px;
  }
  .h2-line{
    width:40px; height:4px;
    border-radius:999px;
    background:var(--grad);
    margin-bottom:20px;
  }
  .h3{
    font-size:19px;
    font-weight:600;
    line-height:1.4;
    color:var(--ink-900);
    margin-bottom:8px;
  }
  .section-lead{
    font-size:15px;
    line-height:1.85;
    color:var(--ink-500);
    max-width:760px;
    margin-bottom:32px;
  }
  .text-strong{ color:var(--ink-900); font-weight:600; }

  /* ---------- 面包屑与首屏 ---------- */
  .crumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--ink-500);
  }
  .crumb a{ color:var(--ink-500); }
  .crumb a:hover{ color:var(--brand-1); }
  .crumb .sep{ color:#B6C7C4; }

  .page-hero{
    position:relative;
    overflow:hidden;
    background:var(--mist-100);
    border-bottom:1px solid var(--line);
    padding:36px 0 40px;
  }
  @media (min-width:1024px){
    .page-hero{ padding:56px 0 60px; }
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:radial-gradient(var(--line) 1px, transparent 1px);
    background-size:8px 8px;
    opacity:.55;
    pointer-events:none;
  }
  .page-hero .container{ position:relative; z-index:1; }
  .hero-lead{
    font-size:17px;
    line-height:1.75;
    color:var(--ink-500);
    max-width:640px;
    margin-bottom:24px;
  }
  .anchor-pills{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:26px;
  }
  .pill{
    display:inline-flex;
    align-items:center;
    min-height:40px;
    padding:8px 18px;
    border-radius:999px;
    border:1px solid var(--brand-1);
    background:#fff;
    color:var(--brand-1);
    font-size:14px;
    font-weight:600;
  }
  .pill:hover{
    background:var(--brand-1);
    color:#fff;
    text-decoration:none;
  }
  .hero-stats{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:28px;
  }
  .stat-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    font-size:13px;
    font-weight:600;
    color:var(--ink-700);
    box-shadow:var(--shadow-1);
  }
  .stat-chip strong{
    font-size:16px;
    color:var(--brand-1);
    font-variant-numeric:tabular-nums;
  }

  /* ---------- 卡片 ---------- */
  .card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:24px;
    box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:var(--brand-1);
  }
  .icon-box{
    width:44px; height:44px;
    border-radius:14px;
    background:rgba(18,198,160,.12);
    color:var(--brand-1);
    display:grid;
    place-items:center;
    flex:0 0 auto;
  }
  .icon-box svg{ width:22px; height:22px; }

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    line-height:1.5;
    color:#0B8E75;
    background:rgba(18,198,160,.08);
    border:1px solid rgba(18,198,160,.35);
    white-space:nowrap;
  }
  .badge::before{
    content:"";
    width:6px; height:6px;
    border-radius:50%;
    background:currentColor;
    flex:0 0 auto;
  }
  .badge-sun{
    color:#C9530F;
    background:rgba(255,122,69,.08);
    border-color:rgba(255,122,69,.35);
  }
  .badge-violet{
    color:#5B44C7;
    background:rgba(124,92,255,.08);
    border-color:rgba(124,92,255,.32);
  }

  /* ---------- 对照表 ---------- */
  .table-wrap{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-1);
    overflow:hidden;
  }
  .table-scroll{ overflow-x:auto; }
  table.compare{
    width:100%;
    min-width:760px;
    border-collapse:collapse;
  }
  table.compare thead th{
    position:sticky;
    top:0;
    background:var(--mist-100);
    color:var(--ink-900);
    font-size:14px;
    font-weight:700;
    text-align:left;
    padding:16px 20px;
    white-space:nowrap;
    border-bottom:1px solid var(--line);
  }
  table.compare td{
    padding:18px 20px;
    border-top:1px solid var(--line);
    font-size:15px;
    line-height:1.7;
    color:var(--ink-700);
    vertical-align:top;
  }
  table.compare tbody tr{ transition:background .2s var(--ease); }
  table.compare tbody tr:hover{ background:var(--mist-50); }
  table.compare td:first-child{
    font-weight:600;
    color:var(--ink-900);
    white-space:nowrap;
  }
  .table-note{
    padding:16px 20px;
    background:var(--mist-50);
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--ink-500);
  }

  /* ---------- 检查点网格 ---------- */
  .badge-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
  }
  @media (min-width:640px){
    .badge-grid{ grid-template-columns:repeat(2,1fr); }
  }
  @media (min-width:1024px){
    .badge-grid{ grid-template-columns:repeat(3,1fr); gap:20px; }
  }
  .check-card{
    display:flex;
    gap:14px;
    align-items:flex-start;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:20px;
    box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .check-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:var(--brand-1);
  }
  .check-card h3{
    font-size:16px;
    font-weight:700;
    color:var(--ink-900);
    margin-bottom:6px;
  }
  .check-card p{
    font-size:14px;
    line-height:1.75;
    color:var(--ink-500);
    margin-bottom:10px;
  }

  /* ---------- 图文分栏 ---------- */
  .split{
    display:grid;
    gap:28px;
    align-items:center;
  }
  @media (min-width:1024px){
    .split{ grid-template-columns:1.05fr 1fr; gap:48px; }
  }
  .figure{
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-1);
    position:relative;
    background:var(--mist-100);
  }
  .figure img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .figure figcaption{
    padding:12px 18px;
    font-size:13px;
    color:var(--ink-500);
    background:#fff;
    border-top:1px solid var(--line);
  }
  .signal-list{
    display:grid;
    gap:12px;
    margin-top:20px;
  }
  .signal-item{
    display:flex;
    gap:12px;
    align-items:flex-start;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    padding:14px 18px;
    font-size:15px;
    line-height:1.7;
    color:var(--ink-700);
    box-shadow:var(--shadow-1);
  }
  .signal-item span.dot{
    width:8px; height:8px;
    border-radius:50%;
    background:var(--sun);
    margin-top:11px;
    flex:0 0 auto;
  }

  /* ---------- 三步处理 ---------- */
  .step-grid{
    display:grid;
    gap:20px;
    grid-template-columns:1fr;
  }
  @media (min-width:768px){
    .step-grid{ grid-template-columns:repeat(3,1fr); }
  }
  .step-card{
    position:relative;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:26px 24px 24px;
    box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .step-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-2);
    border-color:var(--brand-1);
  }
  .step-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px; height:38px;
    border-radius:12px;
    background:var(--grad);
    color:#fff;
    font-size:16px;
    font-weight:800;
    font-variant-numeric:tabular-nums;
    margin-bottom:16px;
  }
  .step-card h3{
    font-size:18px;
    font-weight:700;
    color:var(--ink-900);
    margin-bottom:8px;
  }
  .step-card p{
    font-size:15px;
    line-height:1.8;
    color:var(--ink-500);
  }

  /* ---------- FAQ ---------- */
  .faq-list{ max-width:900px; }
  .faq-item{
    position:relative;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
  }
  .faq-item:hover{ border-color:rgba(18,198,160,.6); }
  .faq-item[open]{
    border-color:var(--brand-1);
    box-shadow:var(--shadow-1);
  }
  .faq-item[open]::before{
    content:"";
    position:absolute;
    left:0; top:0; bottom:0;
    width:4px;
    background:var(--grad);
  }
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:56px;
    padding:14px 22px;
    font-size:16px;
    font-weight:600;
    line-height:1.6;
    color:var(--ink-900);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary::after{
    content:"+";
    font-size:20px;
    font-weight:600;
    line-height:1;
    color:var(--brand-1);
    transition:transform .22s var(--ease);
    flex:0 0 auto;
  }
  .faq-item[open] summary::after{ transform:rotate(180deg); }
  .faq-body{
    padding:0 22px 20px 22px;
    font-size:15px;
    line-height:1.85;
    color:var(--ink-500);
  }

  /* ---------- CTA ---------- */
  .cta-card{
    display:grid;
    gap:24px;
    background:linear-gradient(118deg,rgba(18,198,160,.12) 0%,rgba(56,217,192,.10) 46%,rgba(124,92,255,.12) 100%);
    border:1px solid var(--line);
    border-radius:var(--radius-xl);
    padding:32px 24px;
  }
  @media (min-width:1024px){
    .cta-card{
      grid-template-columns:1.5fr 1fr;
      align-items:center;
      padding:48px;
      gap:40px;
    }
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
  }
  .cta-note{
    font-size:13px;
    color:var(--ink-500);
    margin-top:14px;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink-900);
    color:#C8D6D3;
    padding:56px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
  }
  @media (min-width:640px){
    .footer-grid{ grid-template-columns:repeat(2,1fr); }
  }
  @media (min-width:1024px){
    .footer-grid{ grid-template-columns:1.7fr 1fr 1fr 1fr; gap:40px; }
  }
  .site-footer .logo-main{ color:#fff; }
  .site-footer .logo-sub{ color:#8FA5A1; }
  .footer-brand p{
    font-size:14px;
    line-height:1.9;
    color:#9FB3AF;
    margin:14px 0 0;
  }
  .footer-contact{
    display:flex;
    flex-direction:column;
    gap:8px;
    margin-top:16px;
    font-size:13px;
    color:#8FA5A1;
  }
  .site-footer h3{
    font-size:14px;
    font-weight:600;
    color:#fff;
    margin-bottom:16px;
  }
  .site-footer ul{
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .site-footer ul a{
    font-size:14px;
    color:#C8D6D3;
  }
  .site-footer ul a:hover{ color:var(--brand-2); }
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    justify-content:space-between;
    align-items:center;
    margin-top:44px;
    padding:20px 0;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:#8FA5A1;
  }

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

/* roulang page: category3 */
:root{
  --brand-1:#12C6A0;
  --brand-2:#38D9C0;
  --brand-3:#7C5CFF;
  --sun:#FF7A45;
  --ink-900:#0D1F1C;
  --ink-700:#2A3F3B;
  --ink-500:#5A6E6A;
  --mist-50:#F6F8F7;
  --mist-100:#EAF4F1;
  --line:#DCE7E4;
  --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-sm:0 8px 24px rgba(13,31,28,.05);
  --shadow-hover:0 18px 44px rgba(18,198,160,.16);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--mist-50);
  padding-top:56px;
  padding-bottom:76px;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){
  body{padding-top:68px;padding-bottom:0;}
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--ink-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-1);text-decoration:underline;text-underline-offset:4px;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);box-shadow:0 6px 20px rgba(13,31,28,.06);}
.header-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
@media (min-width:1024px){.header-inner{height:68px;}}
.brand{display:flex;align-items:center;gap:10px;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:800;letter-spacing:-.5px;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-main{font-size:15px;font-weight:800;color:var(--ink-900);white-space:nowrap;}
.logo-sub{font-size:11px;color:var(--ink-500);white-space:nowrap;}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;}
}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;
  color:var(--ink-700);border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-1);background:var(--mist-100);text-decoration:none;}
.nav-link.active{color:var(--ink-900);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:10px;}
.header-actions .btn{display:none;}
@media (min-width:1024px){
  .header-actions .btn{display:inline-flex;}
  .menu-btn{display:none;}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,198,160,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,198,160,.34);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:#fff;border-color:var(--brand-1);color:var(--brand-1);}
.btn-ghost:hover{background:var(--mist-100);color:var(--brand-1);}
.btn-sun{background:linear-gradient(118deg,#FFA46B,#FF7A45);color:#fff;box-shadow:0 12px 26px rgba(255,122,69,.3);width:100%;}
.btn-sun:hover{color:#fff;transform:translateY(-2px);}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--ink-700);
}
.menu-btn:hover{border-color:var(--brand-1);color:var(--brand-1);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:16px 20px 32px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--ink-700);
}
.drawer nav{display:flex;flex-direction:column;padding-top:14px;gap:4px;}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 14px;border-radius:14px;font-size:16px;font-weight:600;color:var(--ink-700);
}
.drawer nav a:hover{background:var(--mist-100);text-decoration:none;color:var(--brand-1);}
.drawer nav a.active{background:var(--mist-100);color:var(--brand-1);}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:768px){.mobile-tab{display:none;}}
.tab-item{
  flex:1;min-height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--ink-500);
}
.tab-item:hover{text-decoration:none;color:var(--brand-1);}
.tab-item.active{color:var(--brand-1);font-weight:700;}
.tab-item svg{width:22px;height:22px;}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.bg-mist{background:var(--mist-100);}
.bg-white{background:#fff;}
.sec-head{max-width:720px;margin-bottom:32px;}
@media (min-width:1024px){.sec-head{margin-bottom:44px;}}
.sec-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ink-900);position:relative;padding-bottom:14px;}
.sec-title::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:4px;border-radius:4px;background:var(--grad);}
.sec-desc{margin-top:16px;color:var(--ink-500);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-1);
  margin-bottom:12px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block;}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-500);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a{color:var(--ink-500);}
.crumbs a:hover{color:var(--brand-1);}
.crumbs .current{color:var(--ink-900);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;background:var(--mist-100);border-bottom:1px solid var(--line);
  padding:36px 0 48px;overflow:hidden;
}
@media (min-width:1024px){.cat-hero{padding:56px 0 72px;}}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(13,31,28,.12) 1px,transparent 1px);
  background-size:8px 8px;opacity:.5;
}
.cat-hero .container{position:relative;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:56px;}}
.hero-copy h1{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;color:var(--ink-900);letter-spacing:-.5px;}
.hero-lead{margin-top:16px;font-size:17px;color:var(--ink-500);max-width:520px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.anchor-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.anchor-pill{
  display:inline-flex;align-items:center;min-height:38px;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-700);
  transition:all .22s var(--ease);
}
.anchor-pill:hover{border-color:var(--brand-1);color:var(--brand-1);text-decoration:none;transform:translateY(-2px);}
.hero-media{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(13,31,28,.1);background:#fff;
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}

/* ---------- 指标带 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px;box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-1);}
.stat-num{font-size:clamp(30px,4vw,42px);font-weight:800;line-height:1.1;color:var(--ink-900);font-variant-numeric:tabular-nums;}
.stat-num span{font-size:15px;font-weight:600;color:var(--brand-1);margin-left:4px;}
.stat-label{margin-top:6px;font-size:14px;font-weight:600;color:var(--ink-700);}
.stat-note{margin-top:4px;font-size:13px;color:var(--ink-500);}
.stat-bar{margin-top:14px;height:6px;border-radius:999px;background:var(--mist-100);overflow:hidden;}
.stat-bar i{display:block;height:100%;border-radius:999px;background:var(--grad);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-1),var(--brand-2),var(--brand-3));opacity:.55;
}
@media (min-width:1024px){.timeline::before{left:23px;}}
.tl-item{position:relative;padding-left:60px;margin-bottom:20px;}
@media (min-width:1024px){.tl-item{padding-left:72px;margin-bottom:24px;}}
.tl-dot{
  position:absolute;left:8px;top:8px;width:24px;height:24px;border-radius:50%;
  background:var(--brand-1);border:4px solid #fff;box-shadow:0 0 0 1px var(--line);
  color:#fff;font-size:10px;font-weight:800;display:grid;place-items:center;
}
@media (min-width:1024px){.tl-dot{left:12px;width:26px;height:26px;}}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-1);}
.tl-card h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--ink-500);}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  padding:6px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(18,198,160,.08);border:1px solid rgba(18,198,160,.4);color:#0b7a63;
}
.tl-tag i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-1);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;font-weight:700;color:var(--ink-900);}
.card-body p{font-size:15px;color:var(--ink-500);}
.card-badge{
  align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(124,92,255,.08);border:1px solid rgba(124,92,255,.4);color:#5a3fd6;
}
.card-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand-3);display:block;}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand-1);min-height:44px;
}
.card-link svg{transition:transform .22s var(--ease);}
.card-link:hover{text-decoration:none;}
.card-link:hover svg{transform:translateX(3px);}

/* ---------- 须知清单 ---------- */
.check-list{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:768px){.check-list{grid-template-columns:repeat(2,1fr);gap:16px 24px;}}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.check-item:hover{border-color:var(--brand-1);box-shadow:var(--shadow-sm);}
.check-icon{
  flex:none;width:28px;height:28px;border-radius:9px;background:rgba(18,198,160,.12);
  display:grid;place-items:center;color:var(--brand-1);margin-top:2px;
}
.check-item h3{font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--ink-500);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--brand-1);}
.faq-item[open]{border-color:var(--brand-1);box-shadow:var(--shadow-sm);}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;padding:16px 20px;
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--mist-100);
  display:grid;place-items:center;color:var(--brand-1);transition:transform .25s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ---------- 表单 ---------- */
.need-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:start;}
@media (min-width:1024px){.need-grid{grid-template-columns:.9fr 1.1fr;gap:56px;}}
.point-list{display:flex;flex-direction:column;gap:16px;margin-top:24px;}
.point{display:flex;gap:12px;align-items:flex-start;}
.point-icon{
  flex:none;width:30px;height:30px;border-radius:10px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand-1);
}
.point strong{display:block;font-size:15px;font-weight:700;color:var(--ink-900);}
.point span{font-size:14px;color:var(--ink-500);}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:0 12px 34px rgba(13,31,28,.07);
}
@media (min-width:1024px){.form-card{padding:32px;}}
.form-row{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-700);}
.input,select,textarea{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink-900);
  padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder,textarea::placeholder{color:#9aadaa;}
.input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--brand-1);box-shadow:0 0 0 2px rgba(18,198,160,.18);
}
textarea{resize:vertical;min-height:104px;}
.form-note{margin-top:12px;font-size:12px;color:var(--ink-500);text-align:center;}
.form-success{
  display:none;margin-bottom:16px;padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(18,198,160,.12);border:1px solid rgba(18,198,160,.35);
  color:#0b7a63;font-size:14px;font-weight:600;
}
.trust-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-700);
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#c9d6d3;padding:56px 0 0;}
.site-footer .logo-main{display:block;color:#fff;font-size:18px;font-weight:800;}
.site-footer .logo-sub{display:block;color:var(--brand-2);font-size:12px;margin-top:2px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand p{margin:14px 0 16px;font-size:14px;line-height:1.8;color:#9fb0ac;max-width:380px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8fa5a0;}
.site-footer h3{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:#b6c7c3;font-size:14px;}
.site-footer a:hover{color:var(--brand-2);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:13px;color:#8fa5a0;
}

/* roulang page: category4 */
:root{
    --brand-1:#12C6A0;
    --brand-2:#38D9C0;
    --brand-3:#7C5CFF;
    --sun:#FF7A45;
    --ink-900:#0D1F1C;
    --ink-700:#2A3F3B;
    --ink-500:#5A6E6A;
    --mist-50:#F6F8F7;
    --mist-100:#EAF4F1;
    --line:#DCE7E4;
    --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
    --shadow-1:0 8px 24px rgba(13,31,28,.05);
    --shadow-2:0 18px 44px rgba(18,198,160,.16);
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --ease:cubic-bezier(.4,0,.2,1);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    background:var(--mist-50);
    color:var(--ink-700);
    font-size:16px;
    line-height:1.8;
    padding-top:68px;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
  a:hover{color:var(--brand-1);}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}

  /* 容器 */
  .shell{max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){.shell{padding:0 32px;}}

  /* 顶部导航 */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:60;height:68px;
    background:#fff;border-bottom:1px solid var(--line);
    transition:background .25s var(--ease),box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);box-shadow:0 6px 22px rgba(13,31,28,.06);}
  .nav-wrap{max-width:1240px;margin:0 auto;padding:0 32px;height:100%;display:flex;align-items:center;gap:20px;}
  .brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0;}
  .logo-main{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:.2px;}
  .logo-sub{font-size:11px;color:var(--ink-500);font-weight:500;}
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:68px;padding:0 12px;
    font-size:14px;font-weight:600;color:var(--ink-700);white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px 3px 0 0;
    background:var(--grad);transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
  }
  .nav-link:hover{color:var(--brand-1);}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
  .nav-link.active{color:var(--ink-900);}
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .menu-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;
  }
  .menu-toggle:hover{border-color:var(--brand-1);}

  /* 按钮 */
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;background:var(--grad);color:#fff;
    font-size:15px;font-weight:600;border:none;cursor:pointer;
    box-shadow:0 10px 24px rgba(18,198,160,.28);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease);
  }
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,198,160,.34);filter:saturate(1.05);}
  .btn-primary:active{transform:translateY(1px);filter:brightness(.96);}
  .btn-sun{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
    padding:15px 26px;border-radius:999px;border:none;cursor:pointer;color:#fff;
    background:linear-gradient(118deg,#FF7A45 0%,#FF9A5C 100%);
    font-size:15px;font-weight:700;box-shadow:0 12px 26px rgba(255,122,69,.28);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .btn-sun:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,122,69,.34);}
  .btn-sun:active{transform:translateY(1px);}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;
    padding:11px 22px;border-radius:999px;background:#fff;border:1px solid var(--brand-1);
    color:var(--brand-1);font-size:14px;font-weight:600;
    transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
  }
  .btn-ghost:hover{background:var(--mist-100);color:var(--brand-1);transform:translateY(-2px);}
  .btn-ghost-white{
    display:inline-flex;align-items:center;justify-content:center;
    padding:13px 26px;border-radius:999px;background:transparent;border:1px solid #fff;
    color:#fff;font-size:15px;font-weight:600;transition:background .22s var(--ease),color .22s var(--ease);
  }
  .btn-ghost-white:hover{background:rgba(255,255,255,.16);color:#fff;}
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);}
  .text-link svg{transition:transform .22s var(--ease);}
  .text-link:hover svg{transform:translateX(3px);}

  /* 徽章 */
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:13px;font-weight:600;border:1px solid rgba(18,198,160,.28);
    background:rgba(18,198,160,.08);color:#0E8F76;
  }
  .badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-1);}
  .badge-purple{border-color:rgba(124,92,255,.28);background:rgba(124,92,255,.08);color:#5B3FE0;}
  .badge-purple::before{background:var(--brand-3);}
  .badge-warn{border-color:rgba(255,122,69,.3);background:rgba(255,122,69,.09);color:#D9552A;}
  .badge-warn::before{background:var(--sun);}

  /* 分类 Hero */
  .cat-hero{
    background-color:var(--mist-100);
    background-image:radial-gradient(rgba(13,31,28,.055) 1px,transparent 1px);
    background-size:8px 8px;
    border-bottom:1px solid var(--line);
    padding:56px 0 52px;
  }
  .crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-500);}
  .crumb a:hover{color:var(--brand-1);text-decoration:underline;text-underline-offset:4px;}
  .hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:40px;align-items:center;margin-top:22px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
    color:#0E8F76;text-transform:none;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}
  .cat-hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;color:var(--ink-900);}
  .cat-hero .lead{margin-top:14px;font-size:17px;color:var(--ink-500);max-width:560px;}
  .hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
  .anchor-pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;}
  .anchor-pills a{
    display:inline-flex;align-items:center;min-height:44px;padding:9px 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-700);
    box-shadow:var(--shadow-1);transition:all .22s var(--ease);
  }
  .anchor-pills a:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-3px);}

  /* 指标速览带 */
  .stat-band{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-1);display:grid;grid-template-columns:repeat(4,1fr);
    overflow:hidden;margin-top:-34px;position:relative;z-index:5;
  }
  .stat-band .stat{padding:22px 24px;border-right:1px solid var(--line);}
  .stat-band .stat:last-child{border-right:none;}
  .stat .val{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink-900);line-height:1.1;}
  .stat .val span{font-size:14px;font-weight:600;color:var(--ink-500);margin-left:4px;}
  .stat .lbl{font-size:13px;color:var(--ink-500);margin-top:6px;}

  /* 区块 */
  .section{padding:88px 0;}
  .section-alt{background:var(--mist-100);}
  .sec-head{max-width:720px;margin-bottom:36px;}
  .sec-head h2{
    position:relative;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ink-900);
    padding-bottom:16px;
  }
  .sec-head h2::after{
    content:"";position:absolute;left:0;bottom:0;width:40px;height:4px;border-radius:4px;background:var(--grad);
  }
  .sec-head p{margin-top:14px;color:var(--ink-500);font-size:16px;}

  /* Bento */
  .bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
  .bento-card{
    grid-column:span 2;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:24px;box-shadow:var(--shadow-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-1);}
  .bento-feature{
    grid-column:span 4;display:flex;padding:0;overflow:hidden;align-items:stretch;
  }
  .bento-feature:hover{transform:translateY(-4px);}
  .bento-media{width:44%;min-height:280px;overflow:hidden;flex-shrink:0;}
  .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
  .bento-feature:hover .bento-media img{transform:scale(1.04);}
  .bento-body{flex:1;padding:28px;}
  .icon-tile{
    width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:rgba(18,198,160,.12);color:#0E8F76;margin-bottom:16px;
  }
  .icon-tile.purple{background:rgba(124,92,255,.12);color:#5B3FE0;}
  .icon-tile.sun{background:rgba(255,122,69,.12);color:#D9552A;}
  .bento-card h3,.bento-feature h3{font-size:19px;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
  .bento-card p,.bento-feature p{font-size:15px;color:var(--ink-500);margin-bottom:16px;}
  .mini-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-500);margin-bottom:6px;}
  .mini-list li::before{
    content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-1);
  }

  /* 对照表 */
  .table-wrap{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);
    overflow:auto;max-height:560px;
  }
  table.cmp{width:100%;border-collapse:separate;border-spacing:0;min-width:720px;}
  table.cmp thead th{
    position:sticky;top:0;z-index:2;background:var(--mist-100);
    text-align:left;font-size:14px;font-weight:700;color:var(--ink-900);
    padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
  }
  table.cmp tbody td{
    padding:18px 22px;font-size:15px;color:var(--ink-500);border-bottom:1px solid var(--line);vertical-align:top;
  }
  table.cmp tbody tr:hover td{background:var(--mist-50);}
  table.cmp tbody td strong{color:var(--ink-900);font-weight:600;display:block;margin-bottom:4px;}
  table.cmp tbody tr:last-child td{border-bottom:none;}

  /* 核对卡 */
  .check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .check-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
    box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-1);}
  .check-card h3{font-size:18px;font-weight:700;color:var(--ink-900);margin:14px 0 12px;}
  .num-pill{
    display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:999px;
    background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  }
  .check-card ul li{
    display:flex;gap:10px;font-size:15px;color:var(--ink-500);padding:9px 0;border-bottom:1px dashed var(--line);
  }
  .check-card ul li:last-child{border-bottom:none;}
  .check-card ul li svg{flex-shrink:0;margin-top:5px;color:var(--brand-1);}
  .media-block{
    border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);border:1px solid var(--line);
  }
  .media-block img{width:100%;height:260px;object-fit:cover;}

  /* FAQ */
  .faq-list{display:grid;gap:12px;max-width:900px;}
  details.faq-item{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  details.faq-item::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;
    background:var(--grad);opacity:0;transition:opacity .22s var(--ease);
  }
  details.faq-item[open]{border-color:var(--brand-1);}
  details.faq-item[open]::before{opacity:1;}
  details.faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 22px;cursor:pointer;list-style:none;
    font-size:16px;font-weight:600;color:var(--ink-900);
  }
  details.faq-item summary::-webkit-details-marker{display:none;}
  details.faq-item summary::after{
    content:"+";font-size:22px;font-weight:400;color:var(--brand-1);line-height:1;
    transition:transform .25s var(--ease);flex-shrink:0;
  }
  details.faq-item[open] summary::after{transform:rotate(180deg);content:"−";}
  details.faq-item .faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.85;}

  /* CTA / 表单 */
  .cta-panel{
    display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:40px;box-shadow:var(--shadow-1);
  }
  .cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--ink-900);line-height:1.3;}
  .cta-panel .cta-desc{margin-top:14px;color:var(--ink-500);}
  .point-list{margin-top:24px;display:grid;gap:14px;}
  .point-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-700);}
  .point-list .dot{
    flex-shrink:0;width:26px;height:26px;border-radius:9px;display:flex;align-items:center;justify-content:center;
    background:rgba(18,198,160,.12);color:#0E8F76;margin-top:3px;
  }
  .form-card{background:var(--mist-50);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border-radius:var(--r-sm);border:1px solid var(--line);
    background:#fff;font-size:14px;color:var(--ink-700);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field textarea{resize:vertical;min-height:96px;line-height:1.7;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(18,198,160,.18);
  }
  .form-note{font-size:13px;color:var(--ink-500);margin-top:12px;line-height:1.7;}
  .form-ok{
    display:none;margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
    background:rgba(18,198,160,.1);border:1px solid rgba(18,198,160,.32);color:#0E8F76;font-size:14px;
  }

  /* 页脚 */
  .site-footer{background:var(--ink-900);color:#C9D6D3;padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
  .site-footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
  .site-footer ul li{margin-bottom:10px;}
  .site-footer a{font-size:14px;color:#C9D6D3;}
  .site-footer a:hover{color:var(--brand-2);}
  .footer-brand .logo-main{display:block;font-size:18px;font-weight:800;color:#fff;}
  .footer-brand .logo-sub{display:block;font-size:12px;color:var(--brand-2);margin-bottom:14px;}
  .footer-brand p{font-size:14px;line-height:1.85;color:#A9BAB6;max-width:380px;}
  .footer-contact{margin-top:18px;display:grid;gap:8px;font-size:13px;color:#93A6A2;}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA29E;
  }

  /* 移动抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:80;background:#fff;padding:20px;
    transform:translateX(100%);transition:transform .28s var(--ease);overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
  .drawer-close{
    width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
  }
  .drawer-nav{margin-top:16px;display:grid;gap:6px;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 16px;
    border-radius:var(--r-sm);font-size:16px;font-weight:600;color:var(--ink-700);border:1px solid transparent;
  }
  .drawer-nav a:hover,.drawer-nav a.active{background:var(--mist-100);border-color:var(--line);color:var(--brand-1);}
  .drawer-cta{margin-top:20px;display:grid;gap:12px;}
  body.no-scroll{overflow:hidden;}

  /* 移动底部 Tab */
  .tab-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;background:#fff;
    border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px rgba(13,31,28,.06);
  }
  .tab-item{
    flex:1;min-width:0;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;font-weight:600;color:var(--ink-500);
  }
  .tab-item span{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .tab-item.active{color:var(--brand-1);}
  .tab-item:hover{color:var(--brand-1);}

  @media (min-width:768px){.tab-bar{display:none;}}
  @media (max-width:1023px){
    body{padding-top:56px;}
    .site-header{height:56px;}
    .nav-wrap{padding:0 20px;}
    .main-nav{display:none;}
    .menu-toggle{display:flex;margin-left:auto;}
    .nav-actions .btn-ghost{display:none;}
    .hero-grid{grid-template-columns:1fr;gap:26px;}
    .anchor-pills{justify-content:flex-start;}
    .stat-band{grid-template-columns:repeat(2,1fr);}
    .stat-band .stat:nth-child(2){border-right:none;}
    .stat-band .stat:nth-child(1),.stat-band .stat:nth-child(2){border-bottom:1px solid var(--line);}
    .bento{grid-template-columns:repeat(2,1fr);}
    .bento-feature{grid-column:span 2;flex-direction:column;}
    .bento-card{grid-column:span 1;}
    .bento-media{width:100%;min-height:220px;}
    .bento-body{padding:24px;}
    .bento-feature .bento-body{padding:24px;}
    .check-grid{grid-template-columns:1fr;}
    .cta-panel{grid-template-columns:1fr;padding:28px;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:767px){
    body{padding-bottom:76px;}
    .section{padding:56px 0;}
    .cat-hero{padding:38px 0 40px;}
    .hero-btns .btn-primary,.hero-btns .btn-ghost{width:100%;}
    .stat-band{margin-top:-24px;border-radius:var(--r-md);}
    .stat-band .stat{padding:18px;}
    .bento{grid-template-columns:1fr;gap:16px;}
    .bento-card,.bento-feature{grid-column:span 1;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
  }

/* roulang page: category5 */
/* ============ 设计变量 ============ */
:root{
  --brand-1:#12C6A0;
  --brand-2:#38D9C0;
  --brand-3:#7C5CFF;
  --sun:#FF7A45;
  --ink-900:#0D1F1C;
  --ink-700:#2A3F3B;
  --ink-500:#5A6E6A;
  --mist-50:#F6F8F7;
  --mist-100:#EAF4F1;
  --line:#DCE7E4;
  --grad:linear-gradient(118deg,#12C6A0 0%,#38D9C0 46%,#7C5CFF 100%);
  --grad-sun:linear-gradient(118deg,#FF9A5C 0%,#FF7A45 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(13,31,28,.05);
  --sh-2:0 18px 44px rgba(18,198,160,.16);
  --ease:cubic-bezier(.4,0,.2,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--mist-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-1);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}
body.drawer-open{overflow:hidden;}
@media (max-width:767px){ body{padding-bottom:76px;} }

/* ============ 容器 ============ */
body .container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){ body .container{padding-left:32px;padding-right:32px;} }

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:0 6px 22px rgba(13,31,28,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;}
@media (min-width:768px){ .header-inner{height:68px;} }
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;
  box-shadow:0 6px 16px rgba(18,198,160,.30);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-main{font-size:16px;font-weight:800;color:var(--ink-900);letter-spacing:.2px;}
.logo-sub{font-size:11px;color:var(--ink-500);letter-spacing:.3px;}
@media (min-width:768px){ .logo-main{font-size:17px;} }

.main-nav{display:none;align-items:center;gap:2px;}
@media (min-width:1024px){ .main-nav{display:flex;} }
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 12px;border-radius:999px;font-size:15px;color:var(--ink-700);
  white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-1);background:var(--mist-100);}
.nav-link.active{color:var(--brand-1);font-weight:600;}
.nav-link.active::after{
  content:'';position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:999px;background:var(--grad);
}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.header-cta{display:none;}
@media (min-width:1024px){ .header-cta{display:inline-flex;} }
.header-outline{display:none;}
@media (min-width:1280px){ .header-outline{display:inline-flex;} }

.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;background:#fff;
  border:1px solid var(--line);border-radius:14px;cursor:pointer;
}
.menu-toggle .bar{display:block;height:2px;border-radius:2px;background:var(--ink-700);transition:background .2s var(--ease);}
.menu-toggle:hover .bar{background:var(--brand-1);}
@media (min-width:1024px){ .menu-toggle{display:none;} }

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;padding:20px;
  transform:translateX(100%);transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
@media (min-width:1024px){ .drawer{display:none;} }
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--ink-700);font-size:22px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;flex:1;padding:8px 0;}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;padding:14px 4px;
  font-size:16px;border-bottom:1px solid var(--mist-100);
}
.drawer-nav a.active{color:var(--brand-1);font-weight:600;}
.drawer-cta{margin-top:20px;width:100%;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,198,160,.24);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,198,160,.32);}
.btn-outline{background:#fff;border-color:var(--brand-1);color:var(--brand-1);}
.btn-outline:hover{background:#EAF9F5;color:var(--brand-1);}
.btn-sun{background:var(--grad-sun);color:#fff;width:100%;box-shadow:0 10px 24px rgba(255,122,69,.24);}
.btn-sun:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,122,69,.30);}
.btn:active{transform:translateY(1px);filter:brightness(.96);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:44px;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  border:1px solid rgba(18,198,160,.35);background:rgba(18,198,160,.08);color:#0A8F74;
}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0;}
.badge-violet{border-color:rgba(124,92,255,.35);background:rgba(124,92,255,.09);color:#5A3FE0;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;background:var(--mist-100);
  padding:96px 0 48px;
}
@media (min-width:768px){ .page-hero{padding:132px 0 68px;} }
.page-hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(13,31,28,.12) 1px,transparent 1px);
  background-size:10px 10px;opacity:.35;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-1);}
.breadcrumb .current{color:var(--ink-700);font-weight:600;max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.page-h1{
  font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.22;
  color:var(--ink-900);margin:0 0 14px;max-width:20em;
}
.hero-lead{font-size:clamp(15px,1.6vw,17px);color:var(--ink-500);margin:0 0 26px;max-width:34em;}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;}
.anchor-pill{
  display:inline-flex;align-items:center;min-height:44px;padding:8px 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--ink-700);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.anchor-pill:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:0 8px 18px rgba(18,198,160,.14);}

/* ============ 板块 ============ */
.section{padding:56px 0;}
@media (min-width:1024px){ .section{padding:88px 0;} }
.section-alt{background:var(--mist-100);}
.section-head{margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;
  color:var(--ink-900);margin:0 0 12px;
}
.section-head h2::after{
  content:'';display:block;width:40px;height:4px;border-radius:999px;
  background:var(--grad);margin-top:12px;
}
.section-sub{font-size:15px;color:var(--ink-500);margin:0;}

/* ============ 双栏 ============ */
.split{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){
  .split{grid-template-columns:340px minmax(0,1fr);gap:56px;align-items:start;}
}
.sticky-card{position:sticky;top:92px;}

/* ============ 卡片 ============ */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-1);}
.aside-card{padding:24px;border-radius:var(--r-lg);}
.aside-title{font-size:20px;font-weight:700;color:var(--ink-900);margin:14px 0 12px;line-height:1.4;}
.check-list{list-style:none;margin:0 0 20px;padding:0;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-700);padding:11px 0;
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-num{
  flex:0 0 22px;height:22px;margin-top:5px;border-radius:50%;
  background:rgba(18,198,160,.14);color:#0A8F74;
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.aside-btn{width:100%;}
.aside-note{font-size:13px;color:var(--ink-500);line-height:1.65;margin:12px 0 0;}

/* ============ 正文排版 ============ */
.prose{max-width:780px;}
.prose h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--ink-900);
  margin:40px 0 16px;
}
.prose h2:first-child{margin-top:0;}
.prose h2::after{content:'';display:block;width:40px;height:4px;border-radius:999px;background:var(--grad);margin-top:12px;}
.prose h3{font-size:19px;font-weight:600;color:var(--ink-900);margin:28px 0 12px;line-height:1.5;}
.prose h2 + h3{margin-top:20px;}
.prose p{margin:0 0 1.6em;line-height:1.85;}
.prose ul,.prose ol{margin:0 0 1.6em;padding-left:1.4em;}
.prose li{margin-bottom:.6em;line-height:1.85;}
.prose-figure{margin:26px 0;padding:0;}
.prose-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;}
.prose-figure figcaption{font-size:13px;color:var(--ink-500);line-height:1.65;margin-top:10px;}

/* ============ 横向图片滑区 ============ */
.scroll-row{
  display:flex;gap:18px;overflow-x:auto;padding:4px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.scroll-row::-webkit-scrollbar{height:6px;}
.scroll-row::-webkit-scrollbar-thumb{background:rgba(18,198,160,.35);border-radius:999px;}
.scroll-row > *{flex:0 0 80%;scroll-snap-align:start;}
@media (min-width:768px){ .scroll-row > *{flex:0 0 46%;} }
@media (min-width:1024px){ .scroll-row > *{flex:0 0 31%;} }
.shot-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-1);}
.shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.shot-card-body{padding:18px 20px 22px;}
.shot-card h3{font-size:17px;font-weight:600;color:var(--ink-900);margin:0 0 8px;}
.shot-card p{font-size:14px;color:var(--ink-500);line-height:1.7;margin:0;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-1);transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:rgba(18,198,160,.5);}
.faq-item[open]::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;color:var(--brand-1);
  transition:transform .25s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-500);margin:0;}

/* ============ 表单与 CTA ============ */
.cta-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:start;}
@media (min-width:1024px){ .cta-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:center;} }
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--ink-900);margin:0 0 14px;line-height:1.3;}
.cta-copy > p{color:var(--ink-500);margin:0 0 22px;font-size:15px;}
.cta-points{list-style:none;margin:0;padding:0;}
.cta-points li{
  position:relative;padding-left:26px;margin-bottom:12px;
  font-size:15px;color:var(--ink-700);
}
.cta-points li::before{
  content:'';position:absolute;left:0;top:9px;
  width:14px;height:14px;border-radius:50%;
  background:rgba(18,198,160,.16);border:2px solid var(--brand-1);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink-700);font-size:14px;line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  outline:none;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:#9AACA8;}
.field input:focus,.field textarea:focus{
  border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(18,198,160,.18);
}
.field .error{border-color:var(--sun) !important;box-shadow:0 0 0 3px rgba(255,122,69,.16) !important;}
.form-tip{font-size:13px;color:var(--ink-500);margin:12px 0 0;line-height:1.6;}
.form-success{
  margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(18,198,160,.12);border:1px solid rgba(18,198,160,.42);
  color:#0A8F74;font-size:14px;line-height:1.6;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#C6D6D3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;} }
.footer-brand .logo-main{display:block;font-size:18px;font-weight:800;color:#fff;margin-bottom:4px;}
.footer-brand .logo-sub{display:block;font-size:12px;color:#8FA9A5;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9BFBB;margin:0 0 18px;max-width:34em;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8FA9A5;}
.site-footer h3{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a{font-size:14px;color:#C6D6D3;}
.site-footer a:hover{color:var(--brand-2);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;
  font-size:13px;color:#8FA9A5;
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:60px;font-size:11px;color:var(--ink-500);line-height:1.2;
}
.mobile-tabbar a:hover{color:var(--brand-1);}
.mobile-tabbar a.active{color:var(--brand-1);font-weight:600;}
@media (min-width:768px){ .mobile-tabbar{display:none;} }