/* roulang page: index */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  --shadow-2:0 2px 6px rgba(36,29,48,.08),0 20px 44px -22px rgba(36,29,48,.48);
  --shadow-accent:0 12px 26px -12px rgba(255,107,53,.6);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--support);outline-offset:2px;border-radius:6px;}
::selection{background:var(--accent-soft);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding:0 24px;
}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:64px;
  padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-2);
}
.nav-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:16px;
  color:var(--ink-900);
  letter-spacing:.2px;
  white-space:nowrap;
}
.nav-logo .dot{
  width:26px;height:26px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--accent),var(--support));
  box-shadow:inset 0 0 0 3px rgba(255,255,255,.85);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 14px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-700);
  border-radius:var(--r-pill);
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--accent);
  transform:translateX(-50%) scale(0);
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink-900);background:rgba(255,107,53,.09);}
.nav-link.is-active{color:var(--accent-deep);}
.nav-link.is-active::after{transform:translateX(-50%) scale(1);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  font-size:14.5px;
  font-weight:700;
  color:#fff;
  background:var(--accent);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-accent);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);}
.nav-cta:active{transform:translateY(0);filter:brightness(.94);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:14px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  font-size:15.5px;
  font-weight:700;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:var(--shadow-accent);
}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{
  background:rgba(255,255,255,.08);
  color:#fff;
  border-color:rgba(255,255,255,.42);
}
.btn-ghost:hover{border-color:var(--accent);color:#fff;background:rgba(255,107,53,.18);transform:translateY(-2px);}
.btn-outline{
  background:var(--surface);
  color:var(--ink-900);
  border-color:var(--line);
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:700;
  color:var(--accent-deep);
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{padding:36px 0 0;}
.hero-panel{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:48px;
  align-items:center;
  padding:64px 56px;
  border-radius:28px;
  background:var(--ink-900);
  background-image:
    linear-gradient(100deg,rgba(31,22,48,.96) 0%,rgba(31,22,48,.86) 46%,rgba(31,22,48,.58) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  box-shadow:var(--shadow-2);
}
.hero-panel::after{
  content:"";
  position:absolute;
  right:-90px;top:-110px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.55),rgba(255,107,53,0) 68%);
  opacity:.55;
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.4px;
  border-radius:var(--r-pill);
  background:var(--support-soft);
  color:var(--support);
}
.hero .eyebrow{
  background:rgba(198,255,79,.14);
  color:var(--lime);
  border:1px solid rgba(198,255,79,.35);
}
.hero-title{
  margin-top:20px;
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.4px;
}
.hero-title em{
  font-style:normal;
  color:var(--accent);
}
.hero-sub{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.75;
  color:rgba(255,255,255,.78);
  max-width:520px;
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-stats{
  margin-top:40px;
  display:flex;
  flex-wrap:wrap;
  gap:32px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stat strong{
  display:block;
  font-family:var(--mono);
  font-size:24px;
  font-weight:700;
  color:#fff;
  line-height:1.2;
}
.hero-stat span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.hero-visual{
  position:relative;
  min-height:340px;
}
.float-card{
  position:absolute;
  border-radius:20px;
  overflow:hidden;
  background:var(--surface);
  box-shadow:0 26px 50px -24px rgba(0,0,0,.65);
  border:1px solid rgba(255,255,255,.6);
}
.float-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:16/10;
}
.float-card .cap{
  padding:12px 16px;
  font-size:13.5px;
  font-weight:700;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:var(--surface);
}
.float-card .cap span{
  font-size:11.5px;
  font-weight:700;
  color:var(--accent-deep);
  background:var(--accent-soft);
  padding:3px 10px;
  border-radius:var(--r-pill);
}
.float-main{
  top:0;left:0;
  width:78%;
  transform:rotate(-2deg);
}
.float-sub{
  right:0;bottom:0;
  width:56%;
  transform:rotate(3deg);
}
.float-tag{
  position:absolute;
  left:6%;bottom:14%;
  padding:8px 16px;
  font-size:12.5px;
  font-weight:700;
  color:var(--ink-900);
  background:var(--lime);
  border-radius:var(--r-pill);
  box-shadow:0 12px 24px -14px rgba(0,0,0,.7);
  z-index:3;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0 0;}
.section-head{max-width:720px;}
.section-head.center{margin:0 auto;text-align:center;}
.section-title{
  margin-top:16px;
  font-size:30px;
  line-height:1.35;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:-.2px;
}
.section-desc{
  margin-top:14px;
  font-size:15.5px;
  color:var(--text-muted);
}
.head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

/* ---------- 权益对比表 ---------- */
.table-scroll{
  margin-top:40px;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-1);
  padding:8px;
}
.plan-table{
  width:100%;
  min-width:820px;
  border-collapse:separate;
  border-spacing:0;
  font-size:15px;
}
.plan-table th,
.plan-table td{
  padding:18px 20px;
  text-align:left;
  vertical-align:middle;
  border-bottom:1px solid var(--line);
}
.plan-table thead th{
  position:relative;
  font-size:14px;
  font-weight:700;
  color:var(--text-muted);
  border-bottom:1px solid var(--line);
}
.plan-table thead th.plan-col{
  border-top-left-radius:var(--r-md);
  border-top-right-radius:var(--r-md);
}
.plan-table thead th .plan-name{
  display:block;
  font-size:19px;
  font-weight:800;
  color:var(--ink-900);
}
.plan-table thead th .plan-note{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--text-muted);
  font-weight:600;
}
.plan-table thead th.is-rec{
  background:var(--accent-soft);
  border:2px solid var(--accent);
  border-bottom:1px solid var(--line);
}
.plan-badge{
  position:absolute;
  top:-11px;right:16px;
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 12px;
  font-size:11.5px;
  font-weight:800;
  color:var(--ink-900);
  background:var(--lime);
  border-radius:var(--r-pill);
}
.plan-table tbody tr:last-child td{border-bottom:none;}
.plan-table tbody tr:hover td{background:#FBFAF7;}
.plan-table tbody tr:hover td.is-rec{background:#FFEFE7;}
.plan-table td.is-rec{background:#FFF7F2;}
.plan-table td:first-child{
  font-weight:700;
  color:var(--ink-700);
  white-space:nowrap;
}
.cell-yes,.cell-no{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
}
.cell-yes{color:var(--ink-900);font-weight:600;}
.cell-no{color:var(--text-muted);}
.ico-check{color:var(--accent);flex:none;}
.ico-dash{color:#C9C2B8;flex:none;}
.plan-table tfoot td{
  padding:20px;
  border-top:1px solid var(--line);
  background:transparent;
}

/* ---------- 等级亮点 ---------- */
.levels{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  align-items:start;
}
.level-card{
  position:relative;
  padding:30px 24px 26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.level-card:nth-child(1){margin-top:0;}
.level-card:nth-child(2){margin-top:24px;}
.level-card:nth-child(3){margin-top:48px;}
.level-card:nth-child(4){margin-top:72px;}
.level-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:#D7CFC2;}
.level-num{
  font-family:var(--mono);
  font-size:38px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.6px var(--ink-900);
  letter-spacing:-1px;
}
.level-card.is-lime .level-num{
  -webkit-text-stroke:0;
  color:var(--ink-900);
  background:var(--lime);
  display:inline-block;
  padding:2px 10px;
  border-radius:8px;
}
.level-name{
  margin-top:16px;
  font-size:18px;
  font-weight:800;
  color:var(--ink-900);
}
.level-desc{
  margin-top:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-muted);
}
.level-unlock{
  margin-top:18px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12px;
  font-weight:700;
  color:var(--support);
  background:var(--support-soft);
  border-radius:var(--r-pill);
}

/* ---------- 专属内容预览 ---------- */
.thumb-grid{
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.thumb-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.thumb-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.thumb-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
}
.thumb-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.thumb-card:hover .thumb-media img{transform:scale(1.04);}
.thumb-badge{
  position:absolute;
  left:12px;top:12px;
  padding:4px 11px;
  font-size:11.5px;
  font-weight:700;
  color:var(--ink-900);
  background:rgba(255,255,255,.92);
  border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}
.thumb-body{
  padding:18px 18px 20px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}
.thumb-title{
  font-size:15.5px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.5;
}
.thumb-text{
  font-size:13.5px;
  color:var(--text-muted);
  line-height:1.65;
}
.thumb-foot{
  margin-top:auto;
  padding-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-muted);
  border-top:1px solid var(--line);
}
.thumb-foot .link-arrow{font-size:12.5px;}

/* ---------- 最新信息 ---------- */
.news-wrap{
  margin-top:40px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.news-item{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:22px;
  padding:24px 28px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.news-item:last-child{border-bottom:none;}
.news-item:hover{background:#FBFAF7;}
.news-badge{
  padding:5px 12px;
  font-size:12px;
  font-weight:700;
  color:var(--support);
  background:var(--support-soft);
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.news-title{
  font-size:16.5px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.5;
}
.news-item:hover .news-title{color:var(--accent-deep);}
.news-summary{
  margin-top:6px;
  font-size:13.5px;
  color:var(--text-muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--text-muted);
  font-family:var(--mono);
  white-space:nowrap;
}
.news-meta svg{transition:transform .2s ease;color:var(--accent);}
.news-item:hover .news-meta svg{transform:translateX(4px);}
.cms-empty{
  margin:36px 0 0;
  padding:52px 24px;
  text-align:center;
  border:1.5px dashed var(--line);
  border-radius:var(--r-lg);
  color:var(--text-muted);
  font-size:14.5px;
  background:rgba(255,255,255,.6);
}
.cms-empty svg{color:#BFB7AA;margin:0 auto 12px;}

/* ---------- FAQ ---------- */
.faq{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:56px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink-900);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  flex:none;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent-deep);
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-answer{
  padding:0 22px 20px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-muted);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  margin-top:96px;
  padding:56px;
  border-radius:var(--r-lg);
  background:var(--ink-900);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.28),rgba(198,255,79,0) 70%);
  pointer-events:none;
}
.cta-band h2{
  font-size:28px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.2px;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:rgba(255,255,255,.72);
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}
.cta-actions .link-arrow{color:#fff;}
.cta-actions .link-arrow:hover{color:var(--lime);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.1);
}
.footer-inner{
  padding:64px 0 0;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
}
.footer-brand .dot{
  width:26px;height:26px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--accent),var(--support));
  flex:none;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  max-width:320px;
}
.socials{
  margin-top:22px;
  display:flex;
  gap:12px;
}
.socials a{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.8);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.socials a:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.68);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.68);
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.footer-contact svg{flex:none;margin-top:4px;color:var(--accent);}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-panel{grid-template-columns:1fr;padding:48px 40px;gap:36px;}
  .hero-visual{min-height:300px;max-width:520px;}
  .levels{grid-template-columns:repeat(2,1fr);}
  .level-card:nth-child(1),
  .level-card:nth-child(2),
  .level-card:nth-child(3),
  .level-card:nth-child(4){margin-top:0;}
  .level-card:nth-child(even){margin-top:28px;}
  .thumb-grid{grid-template-columns:repeat(2,1fr);}
  .faq{grid-template-columns:1fr;gap:32px;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:860px){
  .site-header{top:10px;padding:0 16px;}
  .nav-shell{height:56px;padding:0 10px 0 16px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;
    left:0;right:0;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:10px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:var(--shadow-2);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{padding:14px 16px;line-height:1.2;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--accent-soft);}
  .nav-cta{display:none;}
  .hero{padding-top:24px;}
  .hero-panel{padding:38px 26px;border-radius:22px;}
  .hero-title{font-size:32px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:24px;}
  .section{padding-top:56px;}
  .section-title{font-size:24px;}
  .news-item{grid-template-columns:1fr;gap:12px;padding:20px;}
  .news-meta{justify-content:space-between;}
  .cta-band{margin-top:56px;padding:36px 26px;}
  .cta-band h2{font-size:23px;}
  .footer-inner{padding-top:48px;grid-template-columns:1fr;gap:32px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .hero-title{font-size:27px;line-height:1.3;}
  .hero-actions .btn{width:100%;}
  .hero-visual{min-height:250px;}
  .float-main{width:84%;}
  .float-sub{width:60%;}
  .levels{grid-template-columns:1fr;}
  .level-card:nth-child(even){margin-top:0;}
  .thumb-grid{grid-template-columns:1fr;}
  .section-title{font-size:22px;}
  .plan-table th,.plan-table td{padding:15px 14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:14.5px;padding:16px 16px;}
  .faq-answer{padding:0 16px 16px;}
}

/* roulang page: article */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  --shadow-2:0 2px 4px rgba(36,29,48,.08),0 22px 44px -20px rgba(36,29,48,.42);
  --shadow-accent:0 12px 26px -12px rgba(255,107,53,.6);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--support);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:0;
}
.section-sub{
  font-size:15px;
  color:var(--text-muted);
  margin-top:10px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--accent-deep);
  letter-spacing:0;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:3px;
  border-radius:2px;
  background:var(--accent);
}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;
  top:16px;
  z-index:80;
  margin-top:16px;
  padding:0 24px;
}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  max-width:var(--container);
  margin:0 auto;
  padding:0 12px 0 22px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.92);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-1);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-2);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  color:var(--ink-900);
  white-space:nowrap;
  transition:opacity .2s ease;
}
.nav-logo:hover{opacity:.78;}
.nav-logo .dot{
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,107,53,.14);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--surface-alt);color:var(--ink-900);}
.nav-link.is-active{
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-weight:700;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  box-shadow:var(--shadow-accent);
  transition:background .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);}
.nav-cta:active{transform:translateY(1px);filter:brightness(.94);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .2s ease,opacity .2s ease;
}

/* ============ 按钮 / 徽章 / 文字链 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:var(--shadow-accent);
}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{
  background:var(--surface);
  color:var(--ink-900);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px);}
.btn-lg{padding:15px 30px;font-size:16px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--support);
  transition:color .2s ease;
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover{color:var(--accent-deep);}
.text-link:hover svg{transform:translateX(4px);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:700;
  background:var(--support-soft);
  color:var(--support);
}
.badge-accent{background:var(--accent-soft);color:var(--accent-deep);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-muted);
  padding-top:44px;
}
.breadcrumb a{color:var(--text-muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent-deep);}
.breadcrumb .sep{color:#C9C2B8;}
.breadcrumb .crumb-current{
  color:var(--ink-700);
  max-width:46ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ 文章头部 ============ */
.article-wrap{max-width:800px;margin:0 auto;}
.article-hero{padding-bottom:8px;}
.article-hero .badge{margin-top:26px;}
.article-title{
  font-size:38px;
  line-height:1.3;
  font-weight:800;
  color:var(--ink-900);
  margin-top:18px;
  letter-spacing:0;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:20px;
  font-size:14px;
  color:var(--text-muted);
}
.article-meta .meta-dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:#C9C2B8;
}
.rule{
  height:1px;
  border:0;
  background:var(--line);
  margin:28px 0 0;
}

/* ============ 正文阅读区 ============ */
.article-main{padding:44px 0 0;}
.prose{
  max-width:760px;
  margin:0 auto;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  word-break:break-word;
}
.prose p{margin:0 0 1.2em;}
.prose h2{
  font-size:26px;
  line-height:1.45;
  font-weight:800;
  color:var(--ink-900);
  margin:2.2em 0 .9em;
  padding-left:14px;
  border-left:4px solid var(--accent);
}
.prose h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink-900);
  margin:1.8em 0 .7em;
}
.prose ul{margin:0 0 1.2em;padding-left:4px;}
.prose ul li{
  position:relative;
  padding-left:24px;
  margin-bottom:.55em;
}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--accent);
}
.prose ol{
  margin:0 0 1.2em;
  padding-left:22px;
  list-style:decimal;
}
.prose ol li{
  list-style:decimal;
  margin-bottom:.5em;
  padding-left:4px;
}
.prose ol li::marker{color:var(--accent);font-weight:700;}
.prose blockquote{
  margin:1.7em 0;
  padding:18px 22px;
  background:var(--surface-alt);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-700);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{
  max-width:100%;
  height:auto;
  border-radius:16px;
  margin:1.8em auto;
}
.prose figure{margin:1.8em 0;}
.prose figcaption{
  text-align:center;
  font-size:14px;
  color:var(--text-muted);
  margin-top:10px;
}
.prose a{
  color:var(--support);
  text-decoration:underline;
  text-underline-offset:3px;
  transition:color .2s ease;
}
.prose a:hover{color:var(--accent-deep);}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
}
.prose thead th{
  background:var(--surface-alt);
  color:var(--ink-900);
  text-align:left;
  font-weight:700;
}
.prose th,.prose td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.prose tbody tr:nth-child(even){background:#FBFAF7;}
.prose hr{
  height:1px;
  border:0;
  background:var(--line);
  margin:2em 0;
}
.prose strong{font-weight:700;color:var(--ink-900);}

/* ============ 空态 ============ */
.cms-empty{
  border:1px dashed #D5CEC2;
  border-radius:var(--r-lg);
  background:var(--surface);
  padding:56px 28px;
  text-align:center;
  color:var(--text-muted);
}
.cms-empty .empty-icon{
  width:52px;
  height:52px;
  margin:0 auto 16px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent-deep);
}
.cms-empty h2{
  font-size:20px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:8px;
}
.cms-empty p{font-size:15px;margin-bottom:22px;}

/* ============ 相关推荐 ============ */
.related-section{padding:72px 0 0;}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
  flex-wrap:wrap;
}
.back-row{
  display:flex;
  justify-content:center;
  padding:36px 0 0;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#DCD4C7;
}
.rel-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-alt);
}
.rel-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{
  padding:18px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.rel-cat{
  font-size:12px;
  font-weight:700;
  color:var(--support);
  background:var(--support-soft);
  border-radius:var(--r-pill);
  padding:3px 10px;
  align-self:flex-start;
}
.rel-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink-900);
}
.rel-date{font-size:13px;color:var(--text-muted);}

/* ============ CTA 条 ============ */
.cta-section{padding:80px 0 0;}
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  padding:46px 48px;
  border-radius:var(--r-lg);
  background:var(--ink-900);
  color:#F3F0F8;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-70px;
  bottom:-90px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.28),rgba(198,255,79,0) 70%);
  pointer-events:none;
}
.cta-band h2{
  font-size:26px;
  line-height:1.4;
  font-weight:800;
  color:#fff;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:rgba(243,240,248,.72);
  max-width:52ch;
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
  position:relative;
  z-index:1;
}
.cta-actions .text-link{color:#C6FF4F;}
.cta-actions .text-link:hover{color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:#EDE9F4;
  border-top:1px solid rgba(255,255,255,.1);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr 1.2fr;
  gap:48px;
  padding:64px 0 40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
}
.footer-brand .dot{
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,107,53,.18);
  flex:none;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(237,233,244,.62);
  max-width:34ch;
}
.socials{
  display:flex;
  gap:10px;
  margin-top:20px;
}
.socials a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(237,233,244,.78);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.socials a:hover{
  background:rgba(255,107,53,.16);
  border-color:rgba(255,107,53,.55);
  color:#fff;
  transform:translateY(-2px);
}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;color:rgba(237,233,244,.62);}
.footer-col a{
  color:rgba(237,233,244,.62);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  line-height:1.7;
}
.footer-contact svg{flex:none;margin-top:4px;color:rgba(198,255,79,.8);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:rgba(237,233,244,.48);
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
  .footer-inner > div:last-child{grid-column:1 / -1;}
}
@media (max-width:900px){
  .site-header{padding:0 16px;top:12px;margin-top:12px;}
  .nav-shell{height:58px;padding:0 10px 0 18px;gap:12px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;
    left:0;
    right:0;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin-left:0;
    padding:10px;
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:var(--shadow-2);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{
    height:48px;
    padding:0 16px;
    border-radius:12px;
    font-size:15px;
  }
  .article-title{font-size:30px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:36px 30px;gap:24px;}
  .cta-band h2{font-size:22px;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px;padding:52px 0 32px;}
  .footer-inner > div:first-child{grid-column:1 / -1;}
  .footer-inner > div:last-child{grid-column:1 / -1;}
  .section-title{font-size:24px;}
  .prose{font-size:16px;}
}
@media (max-width:620px){
  .container{padding:0 16px;}
  .breadcrumb{padding-top:32px;font-size:13px;}
  .breadcrumb .crumb-current{max-width:30ch;}
  .article-title{font-size:26px;margin-top:14px;}
  .article-main{padding-top:32px;}
  .prose{font-size:15.5px;line-height:1.85;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .related-section{padding-top:56px;}
  .cta-section{padding-top:56px;}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-inner{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{margin-top:64px;}
  .nav-logo{font-size:15px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  --shadow-2:0 2px 6px rgba(36,29,48,.08),0 20px 44px -20px rgba(36,29,48,.45);
  --shadow-accent:0 12px 26px -12px rgba(255,107,53,.6);
  --maxw:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--support);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent-deep);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,dl{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--support);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding:0 16px;
}
.nav-shell{
  max-width:var(--maxw);
  margin:0 auto;
  height:64px;
  padding:0 10px 0 20px;
  display:flex;
  align-items:center;
  gap:12px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.9);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-1);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-2);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:16px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:0;
  white-space:nowrap;
}
.nav-logo:hover{color:var(--ink-900);}
.nav-logo .dot{
  width:11px;height:11px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--surface-alt);color:var(--ink-900);}
.nav-link.is-active{color:var(--ink-900);font-weight:600;background:var(--accent-soft);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  bottom:5px;left:50%;
  width:4px;height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--accent);
}
.nav-cta{
  flex:none;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 22px;
  margin-left:6px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--shadow-accent);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
.nav-cta:active{transform:translateY(0);filter:brightness(.94);}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .25s ease,opacity .2s ease;
}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--tight{padding:48px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--support-soft);
  color:var(--support);
  font-size:12px;
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--support);
}
.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink-900);
}
.section-sub{
  margin-top:12px;
  font-size:16px;
  color:var(--text-muted);
}
.hl{color:var(--accent-deep);}
.hl-underline{
  background:linear-gradient(transparent 62%,var(--accent-soft) 62%);
  padding:0 2px;
}

/* ============ 页头 ============ */
.page-hero{padding:36px 0 8px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--accent-deep);}
.breadcrumb .sep{color:#C6BFB2;}
.breadcrumb .current{color:var(--ink-700);font-weight:600;}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink-700);
  font-size:12px;
  font-weight:600;
  box-shadow:var(--shadow-1);
  margin-bottom:16px;
}
.hero-badge b{color:var(--accent-deep);}
.page-title{
  font-size:36px;
  line-height:1.28;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:-.2px;
}
.page-lead{
  margin-top:16px;
  font-size:17px;
  color:var(--ink-700);
  max-width:520px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:28px;
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--shadow-2);
  display:flex;
  align-items:center;
  gap:12px;
}
.hero-float .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:26px;
  font-weight:700;
  line-height:1;
  color:var(--accent-deep);
}
.hero-float .txt{font-size:13px;color:var(--text-muted);line-height:1.5;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:var(--shadow-accent);
}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{
  background:var(--surface);
  color:var(--ink-900);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--accent-deep);
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover{color:var(--accent);}
.text-link:hover svg{transform:translateX(4px);}

/* ============ 准备清单 ============ */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.prep-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6CDBE;}
.prep-icon{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--support-soft);
  color:var(--support);
  margin-bottom:16px;
}
.prep-card:nth-child(2n) .prep-icon{background:var(--accent-soft);color:var(--accent-deep);}
.prep-card h3{font-size:17px;color:var(--ink-900);margin-bottom:8px;font-weight:700;}
.prep-card p{font-size:14px;color:var(--text-muted);line-height:1.7;}

/* ============ 步骤时间线 ============ */
.timeline-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:44px 40px 36px;
  box-shadow:var(--shadow-1);
}
.timeline{position:relative;}
.step{
  position:relative;
  padding:0 0 34px 68px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:21px;top:44px;bottom:0;
  width:2px;
  background:linear-gradient(180deg,var(--line) 0%,#F0EBE2 100%);
}
.step:last-child::before{display:none;}
.step-node{
  position:absolute;
  left:0;top:0;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--accent);
  color:var(--accent-deep);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:16px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 5px var(--surface);
}
.step:first-child .step-node{background:var(--accent);color:#fff;box-shadow:0 0 0 5px var(--surface),0 8px 18px -8px rgba(255,107,53,.8);}
.step-title{
  font-size:19px;
  font-weight:700;
  color:var(--ink-900);
  padding-top:8px;
  margin-bottom:8px;
}
.step-text{font-size:15px;color:var(--text-muted);max-width:680px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  background:var(--surface-alt);
  color:var(--ink-700);
}
.tag--accent{background:var(--accent-soft);color:var(--accent-deep);}
.tag--support{background:var(--support-soft);color:var(--support);}
.step-cta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:22px;
  padding-top:22px;
  border-top:1px dashed var(--line);
}

/* ============ 卡点对照 ============ */
.blocker-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.blocker-item{
  display:flex;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--support);
  border-radius:var(--r-md);
  padding:20px 22px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.blocker-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);}
.blocker-item:nth-child(2n){border-left-color:var(--accent);}
.blocker-item .idx{
  flex:none;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;
  font-weight:700;
  color:var(--text-muted);
  padding-top:2px;
}
.blocker-item h3{font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:6px;}
.blocker-item p{font-size:14px;color:var(--text-muted);line-height:1.7;}

/* ============ 保障要点 ============ */
.assure-band{
  background:var(--surface-alt);
  border-radius:var(--r-lg);
  padding:44px 40px;
}
.assure-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:8px;
}
.assure-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.assure-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.assure-item .mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;height:32px;
  border-radius:10px;
  background:var(--lime);
  color:var(--ink-900);
  margin-bottom:14px;
}
.assure-item h3{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:8px;}
.assure-item p{font-size:14px;color:var(--text-muted);line-height:1.7;}

/* ============ 快捷入口卡 ============ */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.quick-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);color:inherit;}
.quick-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s ease;
}
.quick-card:hover img{transform:scale(1.04);}
.quick-body{padding:20px 22px 22px;}
.quick-body h3{font-size:17px;font-weight:700;color:var(--ink-900);margin:10px 0 6px;}
.quick-body p{font-size:14px;color:var(--text-muted);line-height:1.65;}
.quick-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14px;
  font-weight:600;
  color:var(--accent-deep);
}
.quick-card:hover .quick-more svg{transform:translateX(4px);}
.quick-more svg{transition:transform .2s ease;}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{font-size:30px;line-height:1.35;color:var(--ink-900);font-weight:700;}
.faq-aside p{margin-top:12px;font-size:15px;color:var(--text-muted);}
.faq-aside .aside-note{
  margin-top:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 20px;
  font-size:14px;
  color:var(--ink-700);
  box-shadow:var(--shadow-1);
}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{box-shadow:var(--shadow-2);border-color:#DCD3C4;border-left-color:var(--accent);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item .plus{
  flex:none;
  width:24px;height:24px;
  border-radius:50%;
  background:var(--surface-alt);
  color:var(--ink-700);
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .plus{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-muted);
  line-height:1.75;
}
.faq-body p + p{margin-top:10px;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  border-radius:var(--r-lg);
  padding:48px 52px;
  color:#F7F5F1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.22) 0%,rgba(198,255,79,0) 68%);
  pointer-events:none;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(247,245,241,.72);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;flex:none;}
.cta-actions .text-link{color:#FFB495;}
.cta-actions .text-link:hover{color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:#F7F5F1;
  margin-top:88px;
  padding:64px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .dot{
  width:11px;height:11px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,107,53,.22);
  flex:none;
}
.footer-desc{
  font-size:14px;
  line-height:1.75;
  color:rgba(247,245,241,.66);
  max-width:340px;
}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(247,245,241,.78);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.socials a:hover{background:rgba(255,107,53,.16);border-color:rgba(255,107,53,.6);color:#fff;transform:translateY(-2px);}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:rgba(247,245,241,.66);}
.footer-col a{color:rgba(247,245,241,.66);transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  line-height:1.6;
}
.footer-contact svg{flex:none;margin-top:4px;color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(247,245,241,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .assure-grid{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:repeat(2,1fr);}
  .hero-grid{gap:32px;}
  .page-title{font-size:32px;}
}
@media (max-width:900px){
  .nav-links{gap:0;}
  .nav-link{padding:0 10px;font-size:14px;}
  .nav-cta{padding:0 16px;font-size:14px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{max-width:520px;}
  .hero-float{left:auto;right:12px;bottom:-16px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--gutter:16px;}
  .site-header{top:10px;padding:0 10px;}
  .nav-shell{height:56px;padding:0 10px 0 16px;gap:8px;}
  .nav-logo{font-size:15px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow-2);
  }
  body.nav-open .nav-links{display:flex;}
  .nav-link{height:48px;padding:0 14px;font-size:15px;border-radius:12px;}
  .nav-link.is-active::after{display:none;}
  .nav-shell{position:relative;}
  .section{padding:52px 0;}
  .section--tight{padding:36px 0;}
  .page-hero{padding:24px 0 0;}
  .page-title{font-size:28px;}
  .page-lead{font-size:15px;}
  .section-title{font-size:24px;}
  .faq-aside h2,.cta-band h2{font-size:23px;}
  .timeline-wrap{padding:28px 22px 24px;}
  .step{padding-left:56px;padding-bottom:28px;}
  .step-node{width:38px;height:38px;font-size:15px;}
  .step::before{left:18px;top:38px;}
  .step-title{font-size:17px;}
  .blocker-grid{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:1fr;}
  .prep-grid{grid-template-columns:1fr;}
  .assure-band{padding:28px 22px;}
  .cta-band{padding:30px 24px;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{font-size:16px;}
  .site-footer{margin-top:56px;padding-top:44px;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .page-title{font-size:25px;}
  .hero-actions{gap:10px;}
  .btn{width:100%;}
  .step-cta .btn{width:100%;}
  .footer-inner{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-float{position:static;margin-top:14px;box-shadow:var(--shadow-1);}
  .hero-media img{aspect-ratio:16/10;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-body{padding:0 16px 18px;font-size:14px;}
  .prep-card,.quick-body{padding:20px;}
}

/* roulang page: category2 */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  --shadow-2:0 2px 6px rgba(36,29,48,.08),0 22px 48px -24px rgba(36,29,48,.42);
  --shadow-accent:0 12px 26px -12px rgba(255,107,53,.6);
  --ff:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ff-num:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease,background-color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:var(--accent-soft);color:var(--accent-deep)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:80;
  padding:0 16px;
}
.nav-shell{
  position:relative;
  max-width:1200px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-2);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-weight:700;
  font-size:16px;
  color:var(--ink-900);
  white-space:nowrap;
  letter-spacing:0;
}
.nav-logo .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft);
  flex:none;
}
.nav-logo:hover .dot{background:var(--accent-deep)}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:14px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:var(--ink-700);
  white-space:nowrap;
}
.nav-link:hover{background:var(--surface-alt);color:var(--ink-900)}
.nav-link.is-active{
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-weight:600;
}
.nav-cta{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 22px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  box-shadow:var(--shadow-accent);
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px)}
.nav-cta:active{transform:translateY(0);filter:brightness(.94)}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:42px;height:42px;
  margin-left:auto;
  padding:0 11px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
}
.nav-toggle span{
  display:block;height:2px;border-radius:2px;background:var(--ink-900);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

a:focus-visible,button:focus-visible{
  outline:2px solid var(--support);
  outline-offset:2px;
  border-radius:8px;
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16.5px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14.5px;
  font-weight:600;
  color:var(--accent-deep);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  background:var(--accent-soft);
  color:var(--accent-deep);
  white-space:nowrap;
}
.badge-support{background:var(--support-soft);color:var(--support)}
.badge-lime{background:var(--lime);color:#2A3A06}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  color:var(--ink-700);
  background:var(--surface-alt);
}

/* ---------- 页头区 ---------- */
.page-hero{padding:44px 0 0}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-muted);
  margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--accent-deep)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

.hero-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:1.05fr .95fr;
  align-items:stretch;
}
.hero-copy{padding:52px 44px 52px 48px}
.hero-copy h1{
  font-size:36px;
  line-height:1.28;
  letter-spacing:0;
  margin-bottom:18px;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--accent-deep);
}
.hero-lead{
  font-size:16.5px;
  color:var(--text-muted);
  max-width:34em;
  margin-bottom:26px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.hero-visual{
  position:relative;
  min-height:340px;
  background:
    linear-gradient(120deg,rgba(31,22,48,.86) 0%,rgba(31,22,48,.55) 46%,rgba(108,59,244,.22) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  display:flex;
  align-items:flex-end;
  padding:24px;
}
.hero-visual::after{
  content:"";
  position:absolute;
  width:230px;height:230px;
  right:-60px;top:-70px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.42) 0%,rgba(255,107,53,0) 70%);
  pointer-events:none;
}
.hero-card{
  position:relative;
  z-index:1;
  width:100%;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.96);
  padding:16px;
  box-shadow:var(--shadow-2);
  display:flex;
  align-items:center;
  gap:14px;
}
.hero-card img{
  width:74px;height:74px;
  border-radius:12px;
  object-fit:cover;
  flex:none;
  aspect-ratio:1/1;
}
.hero-card .hc-title{
  font-size:14.5px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:4px;
}
.hero-card .hc-desc{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.6;
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:26px;
}
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.stat .num{
  font-family:var(--ff-num);
  font-size:26px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.2;
  margin-bottom:6px;
}
.stat .num span{font-size:14px;color:var(--text-muted);margin-left:4px;font-weight:600}
.stat .label{font-size:13.5px;color:var(--text-muted)}

/* ---------- 板块 ---------- */
.section{padding:74px 0}
.section-alt{background:var(--surface-alt);border-radius:36px;margin:0 12px;padding:74px 0}
.section-head{
  max-width:720px;
  margin-bottom:38px;
}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:700;
  color:var(--support);
  margin-bottom:12px;
}
.section-head .eyebrow::before{
  content:"";
  width:18px;height:2px;border-radius:2px;background:var(--support);
}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:12px}
.section-head p{color:var(--text-muted);font-size:15.5px}

/* ---------- 权益卡网格 ---------- */
.benefit-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.benefit-card{
  display:flex;
  gap:18px;
  padding:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.benefit-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#D9D0C3;
}
.benefit-icon{
  flex:none;
  width:46px;height:46px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:var(--accent-soft);
  color:var(--accent-deep);
}
.benefit-icon.support{background:var(--support-soft);color:var(--support)}
.benefit-icon.ink{background:var(--surface-alt);color:var(--ink-900)}
.benefit-body h3{font-size:17.5px;margin-bottom:8px}
.benefit-body p{font-size:14.5px;color:var(--text-muted);line-height:1.72}
.benefit-body .tag{margin-top:12px}

/* ---------- 方案对比 ---------- */
.plans{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  align-items:stretch;
}
.plan{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 26px;
  box-shadow:var(--shadow-1);
  position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.plan.is-featured{
  border:2px solid var(--accent);
  background:linear-gradient(180deg,#FFFAF7 0%,#FFFFFF 30%);
  box-shadow:var(--shadow-2);
}
.plan .plan-badge{
  position:absolute;
  top:-13px;
  left:26px;
}
.plan-name{font-size:20px;margin-bottom:6px}
.plan-sub{font-size:13.5px;color:var(--text-muted);margin-bottom:20px}
.plan-price{
  font-family:var(--ff-num);
  font-size:15px;
  color:var(--ink-700);
  font-weight:600;
  padding:12px 0 18px;
  border-bottom:1px solid var(--line);
  margin-bottom:18px;
}
.plan-features{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1}
.plan-features li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--ink-700);
  line-height:1.6;
}
.plan-features li svg{flex:none;margin-top:4px;color:var(--accent)}
.plan-features li.is-off{color:#A9A1B2}
.plan-features li.is-off svg{color:#CDC6D6}

/* ---------- 流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  position:relative;
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px 24px 26px;
  box-shadow:var(--shadow-1);
}
.step .step-no{
  width:38px;height:38px;
  border-radius:var(--r-pill);
  display:grid;place-items:center;
  font-family:var(--ff-num);
  font-weight:700;
  font-size:15px;
  background:var(--ink-900);
  color:var(--lime);
  margin-bottom:18px;
}
.step h3{font-size:17.5px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-muted)}
.step-track{
  height:6px;
  border-radius:var(--r-pill);
  background:var(--surface-alt);
  overflow:hidden;
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:8px;
}
.step-track i{display:block;height:100%;border-radius:var(--r-pill);background:var(--accent)}
.step-track i:nth-child(2){background:var(--support)}
.step-track i:nth-child(3){background:var(--ink-900)}

/* ---------- 适用场景 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.scene-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-alt);
}
.scene-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.scene-media .badge{
  position:absolute;
  left:14px;top:14px;
  background:rgba(255,255,255,.94);
  color:var(--ink-900);
  box-shadow:0 2px 10px rgba(36,29,48,.14);
}
.scene-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.scene-body h3{font-size:17px;margin-bottom:8px}
.scene-body p{font-size:14.5px;color:var(--text-muted);flex:1}
.scene-body .link-arrow{margin-top:16px}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:48px;
  align-items:start;
}
.faq-side h2{font-size:30px;margin-bottom:12px}
.faq-side p{font-size:14.5px;color:var(--text-muted);margin-bottom:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2)}
.faq-item.is-open{border-left-color:var(--support)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 20px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink-900);
}
.faq-q .ico{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface-alt);
  color:var(--ink-700);
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-q .ico{
  transform:rotate(45deg);
  background:var(--support-soft);
  color:var(--support);
}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-panel p{
  padding:0 20px 20px;
  font-size:14.5px;
  color:var(--text-muted);
  line-height:1.78;
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 74px}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  background:
    linear-gradient(110deg,rgba(31,22,48,.96) 0%,rgba(41,29,64,.94) 55%,rgba(108,59,244,.55) 100%),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  box-shadow:var(--shadow-2);
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-70px;bottom:-90px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.24) 0%,rgba(198,255,79,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:600px}
.cta-copy h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.74);font-size:15px}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
  flex:none;
}
.cta-actions .link-arrow{color:#fff;opacity:.85}
.cta-actions .link-arrow:hover{opacity:1}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(247,245,241,.86);
  padding:64px 0 26px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:16.5px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,107,53,.22);
  flex:none;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(247,245,241,.62);
  max-width:30em;
  margin-bottom:20px;
}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.07);
  color:rgba(247,245,241,.86);
  border:1px solid rgba(255,255,255,.09);
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.socials a:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
.footer-col h3{
  font-size:14px;
  color:#fff;
  margin-bottom:16px;
  font-weight:700;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{
  font-size:14px;
  color:rgba(247,245,241,.66);
}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{
  display:flex;
  gap:9px;
  font-size:14px;
  color:rgba(247,245,241,.66);
  line-height:1.6;
}
.footer-contact li svg{flex:none;margin-top:4px;color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(247,245,241,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-copy{padding:44px 32px}
  .hero-copy h1{font-size:32px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-inner > div:last-child{grid-column:1 / -1}
}

@media (max-width:880px){
  .site-header{top:10px;padding:0 12px}
  .nav-shell{min-height:56px;padding:0 10px 0 16px;gap:8px}
  .nav-toggle{display:flex}
  .nav-cta{
    display:none;
  }
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:10px;
    border-radius:22px;
    background:rgba(255,255,255,.98);
    border:1px solid rgba(255,255,255,.9);
    box-shadow:var(--shadow-2);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-link{
    padding:13px 16px;
    border-radius:14px;
    font-size:15px;
    min-height:48px;
  }
  .nav-link.is-active{background:var(--accent-soft)}

  .hero-panel{grid-template-columns:1fr}
  .hero-visual{min-height:200px;order:-1;align-items:center;justify-content:center;padding:20px}
  .hero-card{max-width:420px}
  .hero-copy{padding:34px 24px 38px}
  .hero-copy h1{font-size:28px}
  .hero-lead{font-size:15.5px}

  .stats{grid-template-columns:repeat(2,1fr)}
  .benefit-grid{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr}
  .plan.is-featured{order:-1}
  .steps{grid-template-columns:1fr}
  .step-track{display:none}
  .scene-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-alt{padding:56px 0;margin:0 8px;border-radius:26px}
  .section-head h2{font-size:24px}
  .faq-side h2{font-size:24px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:38px 26px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-inner{grid-template-columns:1fr;gap:32px}
  .footer-inner > div:last-child{grid-column:auto}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .hero-copy h1{font-size:24px}
  .hero-copy{padding:28px 20px 32px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stats{gap:12px}
  .stat{padding:18px 16px}
  .stat .num{font-size:22px}
  .benefit-card{padding:20px;gap:14px}
  .benefit-icon{width:40px;height:40px;border-radius:12px}
  .plan{padding:24px 20px}
  .cta-panel{padding:32px 20px}
  .footer-bottom{flex-direction:column}
  body{font-size:15px}
  .section-alt{margin:0 4px}
}

/* roulang page: category3 */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(36,29,48,.06), 0 10px 30px -18px rgba(36,29,48,.35);
  --shadow-2:0 2px 4px rgba(36,29,48,.08), 0 20px 46px -22px rgba(36,29,48,.45);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--support);outline-offset:2px;border-radius:6px;}
::selection{background:var(--accent-soft);color:var(--accent-deep);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 24px 10px;
  background:linear-gradient(180deg,rgba(247,245,241,.95) 40%,rgba(247,245,241,0));
}
.nav-shell{
  max-width:1152px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:8px 12px 8px 22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--shadow-1);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:box-shadow .25s ease,background .25s ease;
}
.nav-shell.is-scrolled{
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-2);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  letter-spacing:.2px;
  color:var(--ink-900);
  white-space:nowrap;
}
.nav-logo .dot{
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--ink-700);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--accent-deep);background:var(--accent-soft);}
.nav-link.is-active{color:var(--ink-900);background:var(--surface-alt);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:5px;
  height:5px;
  margin-left:-2.5px;
  border-radius:50%;
  background:var(--accent);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  box-shadow:0 12px 26px -14px rgba(255,107,53,.9);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(226,80,28,.9);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:26px 0 0;
  font-size:14px;
  color:var(--text-muted);
}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent-deep);}
.breadcrumb .sep{color:#BDB4A6;}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

/* ---------- page hero ---------- */
.page-hero{padding:22px 0 0;}
.hero-panel{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:36px;
  align-items:center;
  padding:52px;
  border-radius:28px;
  background:var(--ink-900);
  color:#fff;
  box-shadow:var(--shadow-2);
}
.hero-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.26;
  z-index:-2;
}
.hero-panel::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.42),rgba(255,107,53,0) 68%);
  z-index:-1;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(198,255,79,.14);
  border:1px solid rgba(198,255,79,.4);
  color:var(--lime);
  font-size:12px;
  font-weight:700;
  letter-spacing:.4px;
}
.hero-panel h1{
  margin:18px 0 16px;
  font-size:38px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.2px;
}
.hero-panel h1 .hl{color:var(--accent);}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:38em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:16px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 14px 28px -14px rgba(255,107,53,.9);
}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(226,80,28,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.06);
  color:#fff;
  border-color:rgba(255,255,255,.34);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  color:var(--accent-deep);
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(4px);}
.link-arrow.on-dark{color:var(--lime);}

.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.75);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-media .media-badge{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(31,22,48,.78);
  border:1px solid rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  font-size:12px;
  font-weight:600;
  color:#fff;
}
.hero-media .media-badge i{
  width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;
}

/* ---------- sections ---------- */
.section{padding:88px 0 0;}
.section-last{padding-bottom:96px;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.6px;
  color:var(--support);
  background:var(--support-soft);
  padding:6px 14px;
  border-radius:var(--r-pill);
}
.section-head h2{
  margin:16px 0 12px;
  font-size:30px;
  line-height:1.38;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:-.2px;
}
.section-head p{font-size:16px;color:var(--text-muted);}

/* ---------- feature rows ---------- */
.feature-list{display:flex;flex-direction:column;gap:28px;}
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  align-items:stretch;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease;
}
.feature-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.feature-row.rev .feature-media{order:2;}
.feature-media{position:relative;overflow:hidden;background:var(--surface-alt);}
.feature-media img{
  width:100%;
  height:100%;
  min-height:280px;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform .35s ease;
}
.feature-row:hover .feature-media img{transform:scale(1.04);}
.feature-media .step-label{
  position:absolute;
  left:18px;
  top:18px;
  padding:6px 13px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  color:var(--ink-900);
  font-size:12px;
  font-weight:700;
  box-shadow:var(--shadow-1);
}
.feature-body{padding:40px 44px;display:flex;flex-direction:column;justify-content:center;gap:16px;}
.feature-body h3{
  font-size:22px;
  line-height:1.45;
  font-weight:800;
  color:var(--ink-900);
}
.feature-body > p{font-size:15.5px;color:var(--text-muted);}
.point-list{display:flex;flex-direction:column;gap:12px;margin-top:4px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.7;
  color:var(--text);
}
.point-list li svg{flex:none;margin-top:5px;color:var(--accent);}
.feature-body .link-arrow{margin-top:8px;}

/* ---------- checklist ---------- */
.check-panel{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:40px;
  align-items:start;
  padding:44px;
  border-radius:var(--r-lg);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.check-panel h2{font-size:28px;line-height:1.4;font-weight:800;color:var(--ink-900);margin:14px 0 12px;}
.check-panel > div > p{font-size:15.5px;color:var(--text-muted);}
.check-note{
  margin-top:24px;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:var(--accent-soft);
  border-left:3px solid var(--accent);
  font-size:14.5px;
  color:var(--ink-700);
}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-card{
  display:flex;
  gap:14px;
  padding:20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--paper);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.check-card:hover{border-color:var(--accent);transform:translateY(-2px);background:var(--surface);}
.check-box{
  flex:none;
  width:26px;
  height:26px;
  border-radius:8px;
  display:grid;
  place-items:center;
  background:var(--surface);
  border:1.5px solid var(--accent);
  color:var(--accent);
  margin-top:2px;
}
.check-card h4{font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:4px;}
.check-card p{font-size:13.5px;line-height:1.65;color:var(--text-muted);}

/* ---------- stats ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.stat-card{
  padding:26px 24px;
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.stat-num{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:34px;
  font-weight:800;
  line-height:1.1;
  color:var(--ink-900);
}
.stat-num span{font-size:15px;margin-left:4px;color:var(--accent-deep);}
.stat-card p{margin-top:8px;font-size:14px;line-height:1.6;color:var(--text-muted);}

/* ---------- alert block ---------- */
.alert-block{
  position:relative;
  overflow:hidden;
  padding:44px;
  border-radius:var(--r-lg);
  background:var(--ink-900);
  color:#fff;
}
.alert-block::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-120px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.22),rgba(198,255,79,0) 70%);
}
.alert-block h2{font-size:26px;line-height:1.4;font-weight:800;margin-bottom:10px;}
.alert-block > p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:64em;}
.alert-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:30px;
}
.alert-item{
  padding:20px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  transition:background .2s ease,border-color .2s ease;
}
.alert-item:hover{background:rgba(255,255,255,.1);border-color:rgba(198,255,79,.5);}
.alert-item .tag{
  display:inline-block;
  padding:4px 11px;
  border-radius:var(--r-pill);
  background:rgba(198,255,79,.16);
  color:var(--lime);
  font-size:11.5px;
  font-weight:700;
  margin-bottom:10px;
}
.alert-item h4{font-size:15px;font-weight:700;margin-bottom:6px;}
.alert-item p{font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.66);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:44px;align-items:start;}
.faq-aside h2{font-size:28px;line-height:1.4;font-weight:800;color:var(--ink-900);margin:14px 0 12px;}
.faq-aside p{font-size:15.5px;color:var(--text-muted);}
.faq-aside .link-arrow{margin-top:20px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--accent);
  opacity:.85;
}
.faq-item:hover{border-color:#D5CBBC;box-shadow:var(--shadow-2);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px 18px 26px;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink-900);
  cursor:pointer;
  list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::marker{content:"";}
.faq-icon{
  flex:none;
  width:26px;
  height:26px;
  border-radius:8px;
  display:grid;
  place-items:center;
  background:var(--accent-soft);
  color:var(--accent-deep);
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{
  padding:0 26px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-muted);
}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:48px 52px;
  border-radius:28px;
  background:var(--ink-900);
  color:#fff;
  box-shadow:var(--shadow-2);
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-80px;
  bottom:-140px;
  width:360px;
  height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.26),rgba(198,255,79,0) 70%);
}
.cta-panel h2{font-size:28px;line-height:1.4;font-weight:800;margin-bottom:10px;}
.cta-panel p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:40em;}
.cta-actions{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:none;}
.cta-actions .link-arrow{color:#fff;}
.cta-actions .link-arrow:hover{color:var(--lime);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:#F3EFE8;
  border-top:1px solid rgba(255,255,255,.08);
  padding:64px 0 0;
}
.footer-inner{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .dot{
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(255,107,53,.18);
  flex:none;
}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(243,239,232,.66);max-width:30em;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  color:rgba(243,239,232,.82);
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.socials a:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;
  color:rgba(243,239,232,.66);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  line-height:1.65;
  color:rgba(243,239,232,.66);
}
.footer-contact li svg{flex:none;margin-top:4px;color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(243,239,232,.5);
}
.footer-bottom a{color:rgba(243,239,232,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-panel{grid-template-columns:1fr;padding:44px;}
  .hero-panel h1{font-size:32px;}
  .hero-media{max-width:520px;}
  .alert-grid{grid-template-columns:1fr 1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .site-header{padding:12px 16px 6px;}
  .nav-shell{padding:8px 10px 8px 18px;gap:12px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    margin:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    border-radius:20px;
    background:rgba(255,255,255,.98);
    border:1px solid var(--line);
    box-shadow:var(--shadow-2);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{height:48px;padding:0 16px;font-size:15.5px;border-radius:12px;}
  .nav-link.is-active::after{display:none;}
  .nav-shell{position:relative;flex-wrap:wrap;}
  .feature-row{grid-template-columns:1fr;}
  .feature-row.rev .feature-media{order:0;}
  .feature-media img{min-height:220px;aspect-ratio:16/9;}
  .feature-body{padding:30px 26px;}
  .check-panel{grid-template-columns:1fr;padding:32px 26px;gap:26px;}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-actions{width:100%;flex-direction:row;flex-wrap:wrap;align-items:center;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .breadcrumb{font-size:13px;padding-top:18px;}
  .hero-panel{padding:32px 24px;border-radius:22px;gap:26px;}
  .hero-panel h1{font-size:26px;margin:14px 0 12px;}
  .hero-lead{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:22px;}
  .hero-actions .btn{width:100%;}
  .hero-media{max-width:100%;}
  .section{padding:56px 0 0;}
  .section-last{padding-bottom:64px;}
  .section-head h2{font-size:23px;}
  .section-head{margin-bottom:26px;}
  .feature-body h3{font-size:19px;}
  .check-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-num{font-size:26px;}
  .alert-block{padding:30px 22px;}
  .alert-block h2{font-size:21px;}
  .alert-grid{grid-template-columns:1fr;margin-top:22px;}
  .faq-q{font-size:15px;padding:16px 18px 16px 20px;}
  .faq-a{padding:0 20px 18px;font-size:14.5px;}
  .cta-panel{padding:30px 22px;border-radius:22px;}
  .cta-panel h2{font-size:22px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .site-footer{padding-top:48px;margin-top:64px;}
  .footer-inner{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --ink-900:#1F1630;
  --ink-700:#3B3150;
  --paper:#F7F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE2;
  --accent:#FF6B35;
  --accent-deep:#E2501C;
  --accent-soft:#FFE8DE;
  --support:#6C3BF4;
  --support-soft:#EDE7FF;
  --lime:#C6FF4F;
  --text:#241D30;
  --text-muted:#6B6377;
  --line:#E4DED4;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  --sh-2:0 2px 4px rgba(36,29,48,.08),0 18px 40px -20px rgba(36,29,48,.45);
  --container:1200px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink-900)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--support);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:sticky;top:16px;z-index:60;padding:0 24px}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:6px;
  height:64px;
  padding:0 10px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 1px 2px rgba(36,29,48,.06),0 10px 30px -18px rgba(36,29,48,.35);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{background:rgba(255,255,255,.95);box-shadow:var(--sh-2)}
.nav-logo{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.nav-logo .dot{width:10px;height:10px;border-radius:3px;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);transform:rotate(45deg)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{padding:9px 15px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-700);transition:background .2s ease,color .2s ease}
.nav-link:hover{background:var(--surface-alt);color:var(--ink-900)}
.nav-link.is-active{background:var(--accent-soft);color:var(--accent-deep);font-weight:600}
.nav-cta{
  margin-left:10px;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  box-shadow:0 12px 26px -12px rgba(255,107,53,.75);
  transition:background .2s,transform .2s,box-shadow .2s;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(226,80,28,.8)}
.nav-cta:active{transform:translateY(0);filter:brightness(.94)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:50%;margin-left:auto;align-items:center;justify-content:center;flex-direction:column;gap:5px;background:var(--surface-alt);transition:background .2s}
.nav-toggle:hover{background:var(--accent-soft)}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn svg{flex:0 0 auto;transition:transform .2s ease}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 26px -12px rgba(255,107,53,.75)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(226,80,28,.8)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--accent-soft);color:var(--accent-deep)}
.badge-support{background:var(--support-soft);color:var(--support)}
.badge-lime{background:rgba(198,255,79,.35);color:#4A5B10}

/* ============ 页头区 ============ */
.page-hero{padding:20px 24px 0}
.page-hero-inner{
  position:relative;
  max-width:var(--container);
  margin:0 auto;
  border-radius:var(--r-lg);
  padding:42px 44px;
  border:1px solid var(--line);
  overflow:hidden;
  display:grid;
  grid-template-columns:1.45fr .85fr;
  gap:44px;
  align-items:center;
  background:
    linear-gradient(112deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 46%,rgba(255,232,222,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--sh-1);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:18px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent-deep)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-900);font-weight:600}
.page-hero h1{font-size:clamp(28px,3.4vw,38px);line-height:1.25;margin:14px 0 14px}
.lede{font-size:17px;line-height:1.7;color:var(--ink-700);max-width:44ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{border-radius:var(--r-md);overflow:hidden;border:1px solid rgba(255,255,255,.85);box-shadow:var(--sh-2);background:var(--surface-alt)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section-tight{padding:56px 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head h2{font-size:clamp(23px,2.5vw,30px);line-height:1.35;margin:14px 0 12px}
.section-head p{font-size:16px;line-height:1.8;color:var(--text-muted)}

/* ============ 场景入口卡 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,53,.55)}
.quick-icon{width:44px;height:44px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent-soft);color:var(--accent-deep)}
.quick-card:nth-child(2) .quick-icon{background:var(--support-soft);color:var(--support)}
.quick-card:nth-child(3) .quick-icon{background:rgba(198,255,79,.35);color:#4A5B10}
.quick-card:nth-child(4) .quick-icon{background:var(--surface-alt);color:var(--ink-700)}
.quick-card h3{font-size:17px;line-height:1.5}
.quick-card p{font-size:14px;line-height:1.75;color:var(--text-muted)}
.quick-more{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--accent-deep)}
.quick-more svg{transition:transform .2s ease}
.quick-card:hover .quick-more svg{transform:translateX(4px)}

/* ============ 问答折叠流 ============ */
.qa-layout{display:grid;grid-template-columns:286px 1fr;gap:52px;align-items:start}
.qa-aside{position:sticky;top:104px}
.qa-aside h2{font-size:clamp(22px,2.3vw,28px);line-height:1.35;margin-bottom:12px}
.qa-aside p{font-size:15px;line-height:1.8;color:var(--text-muted)}
.qa-aside .aside-note{
  margin-top:22px;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--support);
  font-size:14px;line-height:1.75;color:var(--ink-700);
}
.qa-group{margin-bottom:34px}
.qa-group:last-child{margin-bottom:0}
.qa-group-title{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:14px}
.qa-group-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--support);flex:0 0 auto}
.qa-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:14px;
  padding:0 22px;
  margin-bottom:12px;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.qa-item:hover{box-shadow:var(--sh-1)}
.qa-item[open]{box-shadow:var(--sh-1);border-left-color:var(--accent-deep)}
.qa-item summary{
  list-style:none;position:relative;cursor:pointer;
  padding:17px 44px 17px 0;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink-900);
}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item summary::before,
.qa-item summary::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.qa-item summary::before{right:6px;top:26px;width:14px;height:2px}
.qa-item summary::after{right:12px;top:20px;width:2px;height:14px}
.qa-item[open] summary::after{transform:rotate(90deg);opacity:0}
.qa-body{padding:2px 0 20px;font-size:15px;line-height:1.85;color:var(--text-muted)}
.qa-body p + p{margin-top:10px}
.qa-body strong{color:var(--ink-900);font-weight:600}

/* ============ 三步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;
  padding:28px 24px 26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{
  width:40px;height:40px;border-radius:13px;margin-bottom:16px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink-900);color:var(--lime);
  font-family:var(--font-mono);font-size:15px;font-weight:700;
}
.step h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.step p{font-size:14px;line-height:1.8;color:var(--text-muted)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:46px 46px;
  border-radius:var(--r-lg);
  background:var(--ink-900);
  color:#fff;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,79,.26),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;color:#fff;margin-bottom:10px}
.cta-band p{font-size:15px;line-height:1.8;color:#C3BCD2;max-width:52ch}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:1}
.cta-link{font-size:15px;font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px;transition:color .2s,border-color .2s}
.cta-link:hover{color:var(--lime);border-color:var(--lime)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#EDE9F2;margin-top:84px;padding:66px 0 28px}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .dot{width:10px;height:10px;border-radius:3px;background:var(--accent);transform:rotate(45deg)}
.footer-desc{font-size:14px;line-height:1.85;color:#B4ADC2;max-width:34ch}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.16);color:#D8D2E4;
  transition:background .2s,border-color .2s,color .2s,transform .2s;
}
.socials a:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#B4ADC2;transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;line-height:1.7;color:#B4ADC2}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--accent)}
.footer-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8E87A0;
}
.footer-bottom a{color:#8E87A0;transition:color .2s}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .qa-layout{grid-template-columns:1fr;gap:30px}
  .qa-aside{position:static}
  .footer-inner{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .site-header{top:10px;padding:0 12px}
  .nav-shell{position:relative;height:58px;padding:0 8px 0 16px;gap:6px;flex-wrap:wrap}
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:10px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 16px;border-radius:14px;font-size:15px}
  .nav-cta{display:none}
  .page-hero{padding:16px 12px 0}
  .page-hero-inner{grid-template-columns:1fr;padding:28px 24px;gap:26px}
  .hero-figure{max-width:440px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .steps{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;gap:24px}
  .footer-inner{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .quick-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .page-hero-inner{padding:24px 20px}
  .lede{font-size:16px}
  .qa-item{padding:0 18px}
  .qa-item summary{font-size:15px;padding:15px 40px 15px 0}
  .qa-item summary::before{top:24px}
  .qa-item summary::after{top:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}