/* roulang page: index */
:root{
  --primary:#17453B;
  --primary-700:#0F332C;
  --primary-600:#1F5A4C;
  --accent:#3FB08C;
  --accent-soft:#E6F4EF;
  --accent-border:rgba(63,176,140,.35);
  --action:#C4623C;
  --action-soft:#FBEDE6;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F4;
  --ink:#16211E;
  --ink-2:#445250;
  --muted:#6E7A76;
  --border:#E3DFD4;
  --border-strong:#CFC9BA;
  --success:#2E8B62;
  --warn:#C4623C;
  --danger:#C0453B;
  --focus:0 0 0 3px rgba(63,176,140,.45);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-sans-serif,system-ui,"PingFang SC",sans-serif;
  --r-btn:10px;
  --r-input:12px;
  --r-card:14px;
  --r-panel:20px;
  --r-cta:24px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(22,33,30,.06);
  --sh-md:0 6px 20px -10px rgba(22,33,30,.18);
  --sh-lg:0 18px 44px -20px rgba(22,33,30,.28);
  --ease:180ms cubic-bezier(.4,.15,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),border-color var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.3;}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.section-head .head-copy{max-width:720px;}
.section-title{margin-bottom:12px;}
.section-desc{color:var(--ink-2);font-size:16px;max-width:680px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary-600);
  background:var(--accent-soft);
  border:1px solid var(--accent-border);
  border-radius:var(--r-pill);
  padding:5px 12px;
  line-height:1;
  margin-bottom:20px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  min-height:44px;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--border-strong);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--surface-alt);}
.btn-outline:active{background:var(--surface-alt);transform:translateY(0);}
.btn-light{background:#fff;color:var(--primary);border-color:#fff;}
.btn-light:hover{background:var(--accent-soft);color:var(--primary-700);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink-2);border-color:transparent;padding:10px 14px;}
.btn-ghost:hover{background:var(--surface-alt);color:var(--primary);}
.btn-sm{padding:8px 16px;font-size:14px;min-height:38px;}
.btn-lg{padding:14px 26px;font-size:16px;min-height:50px;}
.btn[disabled],.btn.is-disabled{background:var(--border-strong);color:#fff;box-shadow:none;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.link-arrow::after{content:"→";transition:transform var(--ease);display:inline-block;}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent-border);}
.link-arrow:hover::after{transform:translateX(3px);}
.badge{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--r-pill);
}
.badge-cat{background:var(--accent-soft);color:var(--primary);}
.badge-level{background:var(--action-soft);color:var(--action);}
.badge-rec{background:var(--action);color:#fff;}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-sm);}
.header-inner{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;
  border-radius:12px;font-size:17px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--primary-700);}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.02em;margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:8px;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--primary);background:var(--surface-alt);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;
  height:2px;background:var(--primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.mega-wrap{position:relative;}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:720px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-lg);
  padding:28px;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:28px;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity 160ms ease,transform 160ms ease,visibility 160ms;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted);margin-bottom:14px;}
.mega-cols{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;}
.mega-item{
  display:block;padding:10px 12px;border-radius:10px;
  transition:background var(--ease),transform var(--ease),color var(--ease);
}
.mega-item:hover{background:var(--surface-alt);transform:translateX(2px);}
.mega-item strong{display:block;font-size:14px;font-weight:600;color:var(--primary);}
.mega-item span{display:block;font-size:12px;color:var(--muted);margin-top:2px;}
.mega-side{border-left:1px solid var(--border);padding-left:24px;}
.mega-card{
  display:block;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--surface);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--accent-border);}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.mega-card-body{padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.mega-card-body span{font-size:14px;font-weight:600;color:var(--ink);}
.mega-card-body i{font-style:normal;color:var(--accent);}
.mega-links{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.mega-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2);}
.mega-links a em{font-style:normal;font-size:12px;color:var(--muted);}
.mega-links a:hover{color:var(--accent);}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--border-strong);background:transparent;border-radius:10px;cursor:pointer;position:relative;}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;background:var(--primary);border-radius:2px;content:"";
  transition:transform var(--ease),opacity var(--ease);
}
.menu-toggle span{top:50%;margin-top:-1px;}
.menu-toggle span::before{top:-6px;left:0;transform:none;}
.menu-toggle span::after{top:6px;left:0;transform:none;}
.menu-toggle.is-open span{background:transparent;}
.menu-toggle.is-open span::before{transform:rotate(45deg);top:0;}
.menu-toggle.is-open span::after{transform:rotate(-45deg);top:0;}
.mobile-nav{display:none;}
/* Hero */
.hero{position:relative;overflow:hidden;background:var(--bg);padding:80px 0 88px;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(23,69,59,.16) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.05;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:56% 44%;
  gap:56px;
  align-items:center;
}
.hero-copy h1{margin-bottom:18px;}
.hero-copy h1 .hl{color:var(--primary-600);}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:13px;color:var(--muted);}
.hero-trust li{display:flex;align-items:center;gap:6px;}
.hero-trust li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex:0 0 5px;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--sh-md);
  background:var(--surface);
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0;}
.hero-badge-card{
  position:absolute;
  right:-8px;
  bottom:-22px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:16px 20px;
  min-width:186px;
}
.hero-badge-card .lvl{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.hero-badge-card .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  line-height:1.1;
  margin-top:4px;
}
.hero-badge-card .num small{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px;}
/* Stats */
.stats-strip{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  padding:0;
}
.stat{padding:32px 24px;border-right:1px solid var(--border);}
.stat:last-child{border-right:none;}
.stat-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--primary);
}
.stat-label{display:block;font-size:14px;color:var(--muted);margin-top:6px;}
/* Compare table */
.compare-wrap{max-width:1080px;margin:0 auto;}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-panel);
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.compare-table th,.compare-table td{padding:0 20px;text-align:left;vertical-align:middle;}
.compare-table thead th{
  padding:24px 20px;
  border-bottom:1px solid var(--border);
  vertical-align:top;
  background:var(--surface);
  position:relative;
}
.compare-table thead th.is-recommended{background:var(--action-soft);}
.compare-table thead th.col-feature{width:30%;}
.plan-head{display:flex;flex-direction:column;gap:8px;align-items:flex-start;}
.plan-name{font-size:18px;font-weight:700;color:var(--primary-700);}
.plan-desc{font-size:12px;color:var(--muted);}
.plan-price{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:600;
  color:var(--primary-600);
  background:var(--surface-alt);
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  padding:4px 10px;
}
.is-recommended .plan-price{background:#fff;border-color:var(--accent-border);}
.rec-badge{
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  background:var(--action);
  color:#fff;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:5px 12px;
  border-radius:0 0 8px 8px;
}
.compare-table tbody tr{height:56px;transition:background var(--ease);}
.compare-table tbody tr:nth-child(even){background:var(--surface-alt);}
.compare-table tbody tr:hover{background:#FAF8F3;}
.compare-table tbody td{border-bottom:1px solid var(--border);font-size:15px;color:var(--ink-2);}
.compare-table tbody tr:last-child td{border-bottom:none;}
.feature-name{font-weight:500;color:var(--ink);}
.compare-table td.td-btn{padding:20px;}
.mark{
  position:relative;
  display:inline-block;
  width:20px;height:20px;
  vertical-align:middle;
}
.mark-yes::after{
  content:"";
  position:absolute;left:5px;top:1px;
  width:7px;height:12px;
  border-right:2px solid var(--success);
  border-bottom:2px solid var(--success);
  transform:rotate(40deg);
}
.mark-no::before,.mark-no::after{
  content:"";
  position:absolute;left:3px;top:9px;
  width:14px;height:2px;
  background:var(--border-strong);
  border-radius:2px;
}
.mark-no::before{transform:rotate(45deg);}
.mark-no::after{transform:rotate(-45deg);}
.compare-cards{display:none;}
.plan-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px;
  margin-bottom:16px;
}
.plan-card.is-recommended{border-color:var(--accent-border);background:var(--action-soft);}
.plan-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.plan-card-head .plan-name{font-size:17px;}
.plan-card .plan-desc{margin-bottom:14px;}
.plan-items li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 0;border-bottom:1px dashed var(--border);
  font-size:14px;color:var(--ink-2);
}
.plan-items li:last-child{border-bottom:none;}
.plan-card .btn{width:100%;margin-top:16px;}
/* Timeline */
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:50%;top:12px;bottom:12px;
  width:1px;background:var(--border);transform:translateX(-50%);
}
.tl-item{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;position:relative;padding:34px 0;}
.tl-item:nth-child(odd) .tl-num{grid-column:1;text-align:right;}
.tl-item:nth-child(odd) .tl-body{grid-column:2;}
.tl-item:nth-child(even) .tl-num{grid-column:2;text-align:left;grid-row:1;}
.tl-item:nth-child(even) .tl-body{grid-column:1;grid-row:1;}
.tl-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:48px;
  font-weight:700;
  line-height:1;
  color:var(--action);
  letter-spacing:-.02em;
}
.tl-num span{display:block;font-family:var(--font-sans);font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.04em;margin-top:8px;}
.tl-body h3{margin-bottom:10px;color:var(--primary-700);}
.tl-body p{color:var(--ink-2);font-size:15px;margin-bottom:14px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;
  font-size:12px;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--r-pill);
  background:var(--surface-alt);
  border:1px solid var(--border);
  color:var(--ink-2);
}
.tl-dot{
  position:absolute;
  left:50%;top:44px;
  width:9px;height:9px;
  margin-left:-4.5px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--accent);
}
/* Feature dark section */
.feature-section{
  position:relative;
  background:var(--primary-700);
  color:#fff;
  border-radius:var(--r-cta);
  overflow:hidden;
  padding:0;
}
.feature-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  align-items:stretch;
}
.feature-media{position:relative;min-height:380px;}
.feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.94;}
.feature-copy{padding:64px 56px;}
.feature-copy h2{color:#fff;margin-bottom:14px;}
.feature-copy > p{color:#C9D5D0;font-size:15px;margin-bottom:26px;}
.feature-list{display:flex;flex-direction:column;gap:2px;margin-bottom:28px;}
.feature-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
  color:#EAF1EE;font-size:15px;
  transition:color var(--ease),padding-left var(--ease);
}
.feature-list a:hover{color:#fff;padding-left:6px;}
.feature-list a em{font-style:normal;font-size:12px;color:#93A8A1;font-family:var(--font-num);}
.feature-copy .link-arrow{color:#fff;border-bottom-color:rgba(255,255,255,.35);}
.feature-copy .link-arrow:hover{color:var(--accent);}
.feature-deco{
  position:absolute;right:-80px;bottom:-110px;
  width:360px;height:360px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:50%;
  pointer-events:none;
}
.feature-deco::before{
  content:"";position:absolute;inset:48px;border:1px solid rgba(255,255,255,.14);border-radius:50%;
}
/* Cards / feed */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:20px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.card:hover{border-color:var(--accent-border);box-shadow:var(--sh-md);transform:translateY(-2px);}
.card-media{position:relative;display:block;margin-bottom:16px;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;}
.card-media .badge{position:absolute;left:10px;top:10px;}
.card-title{font-size:18px;margin-bottom:10px;}
.card-title a{color:var(--ink);}
.card-title a:hover{color:var(--primary);}
.card-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{
  font-size:14px;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-top:auto;padding-top:12px;border-top:1px solid var(--border);
  margin-bottom:12px;
}
.card-meta .dot{color:var(--border-strong);}
.empty-state{
  background:var(--surface);
  border:1px dashed var(--border-strong);
  border-radius:var(--r-card);
  padding:48px 24px;
  text-align:center;
}
.empty-icon{
  width:40px;height:40px;margin:0 auto 16px;
  border:1px solid var(--border-strong);
  border-radius:50%;
}
.empty-title{font-size:16px;font-weight:600;margin-bottom:6px;}
.empty-desc{font-size:13px;color:var(--muted);margin-bottom:18px;}
.subscribe-form{max-width:560px;margin-top:40px;}
.subscribe-form label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.sub-row{display:flex;gap:12px;}
.sub-row input{
  flex:1;
  height:44px;
  border:1px solid var(--border);
  border-radius:var(--r-input);
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  background:var(--surface);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-row input::placeholder{color:var(--muted);}
.sub-row input:focus{outline:none;border-color:var(--accent);box-shadow:var(--focus);}
.form-hint{font-size:13px;color:var(--muted);margin-top:10px;}
.form-hint.is-error{color:var(--danger);}
.form-hint.is-ok{color:var(--success);}
/* FAQ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}
.faq-aside .aside-card{
  background:var(--surface-alt);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:20px;
}
.faq-aside .aside-card strong{display:block;font-size:15px;color:var(--primary-700);margin-bottom:6px;}
.faq-aside .aside-card p{font-size:13px;margin-bottom:14px;color:var(--muted);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  transition:border-color var(--ease),background var(--ease);
  overflow:hidden;
}
.faq-item.is-open{border-color:var(--accent-border);background:var(--surface-alt);}
.faq-q{
  width:100%;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:transparent;border:none;cursor:pointer;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  line-height:1.6;
  position:relative;
  min-height:44px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;
  width:2px;border-radius:2px;background:var(--border);
  transition:background var(--ease);
}
.faq-item.is-open .faq-q::before{background:var(--accent);}
.faq-q span{padding-left:16px;}
.faq-icon{
  position:relative;flex:0 0 16px;width:16px;height:16px;margin-top:4px;
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:7px;
  width:16px;height:1px;background:var(--primary-600);border-radius:1px;
}
.faq-icon::after{transform:rotate(90deg);transition:transform var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms ease;
}
.faq-a-inner{
  padding:0 24px 22px 40px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
/* CTA band */
.cta-band{
  position:relative;
  background:var(--primary);
  border-radius:var(--r-cta);
  color:#fff;
  overflow:hidden;
  padding:64px 56px;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap;}
.cta-copy h2{color:#fff;margin-bottom:12px;}
.cta-copy p{color:#C9D5D0;font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;}
.cta-deco{
  position:absolute;right:-60px;top:-80px;
  width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-deco::before{content:"";position:absolute;inset:56px;border:1px solid rgba(255,255,255,.12);border-radius:50%;}
.cta-deco::after{content:"";position:absolute;inset:112px;border:1px solid rgba(255,255,255,.1);border-radius:50%;}
/* Footer */
.site-footer{background:var(--primary-700);color:#C9D5D0;margin-top:96px;padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-brand .brand-sub{color:#93A8A1;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand p{font-size:14px;color:#A9BAB4;margin:16px 0 12px;max-width:280px;}
.footer-domain{font-family:var(--font-num);font-size:13px;color:#8CA19A;letter-spacing:.02em;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#C9D5D0;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#93A8A1;
}
.footer-bottom a{color:#C9D5D0;}
.mobile-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--surface);
  border-top:1px solid var(--border);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 20px -12px rgba(22,33,30,.28);
}
.mobile-bar .btn{width:100%;height:48px;}
@media (max-width:1023px){
  .container{padding:0 32px;}
  .header-inner{min-height:64px;gap:16px;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:var(--sh-md);
    padding:12px 32px 20px;
    gap:4px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:44px;padding:0 12px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--accent-soft);}
  .menu-toggle{display:block;}
  .header-actions .btn-primary{display:none;}
  .mega-wrap{position:static;}
  .mega-panel{
    position:absolute;top:100%;left:0;right:0;
    width:100%;
    grid-template-columns:1fr;
    border-radius:0 0 var(--r-panel) var(--r-panel);
    max-height:70vh;overflow:auto;
  }
  .mega-cols{grid-template-columns:1fr;}
  .mega-side{border-left:none;border-top:1px solid var(--border);padding-left:0;padding-top:20px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero{padding:56px 0 64px;}
  .hero-visual{max-width:560px;}
  .hero-badge-card{right:12px;bottom:-18px;min-width:160px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:1px solid var(--border);}
  .stat:nth-child(2n){border-right:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--border);}
  .section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .feature-inner{grid-template-columns:1fr;}
  .feature-media{min-height:260px;position:relative;}
  .feature-copy{padding:40px 32px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .timeline::before{left:18px;}
  .tl-item{grid-template-columns:1fr;gap:12px;padding:24px 0 24px 48px;}
  .tl-item:nth-child(odd) .tl-num,
  .tl-item:nth-child(even) .tl-num{grid-column:1;grid-row:1;text-align:left;font-size:36px;}
  .tl-item:nth-child(odd) .tl-body,
  .tl-item:nth-child(even) .tl-body{grid-column:1;grid-row:2;}
  .tl-dot{left:18px;top:34px;margin-left:-4.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .cta-band{padding:48px 32px;}
  .compare-table{display:none;}
  .compare-cards{display:block;max-width:560px;margin:0 auto;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:clamp(28px,7vw,36px);}
  .hero-lead{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-badge-card{position:static;margin-top:16px;width:100%;}
  .card-grid{grid-template-columns:1fr;}
  .feature-copy{padding:32px 24px;}
  .cta-band{padding:40px 24px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px 34px;font-size:14px;}
  .sub-row{flex-direction:column;}
  .sub-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .mobile-bar{display:block;}
  body{padding-bottom:76px;}
  .stat{padding:24px 16px;}
  .stat-num{font-size:28px;}
}
@media (max-width:559px){
  .hero-trust{flex-direction:column;gap:6px;}
  .plan-card{padding:18px;}
  .cta-deco,.feature-deco{display:none;}
}

/* roulang page: article */
:root{
  --primary:#17453B;
  --primary-700:#0F332C;
  --primary-600:#1F5A4C;
  --accent:#3FB08C;
  --accent-soft:#E6F4EF;
  --accent-border:rgba(63,176,140,.35);
  --action:#C4623C;
  --action-soft:#FBEDE6;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F4;
  --ink:#16211E;
  --ink-2:#445250;
  --muted:#6E7A76;
  --border:#E3DFD4;
  --border-strong:#CFC9BA;
  --success:#2E8B62;
  --warn:#C4623C;
  --danger:#C0453B;
  --focus:0 0 0 3px rgba(63,176,140,.45);
  --radius-btn:10px;
  --radius-input:12px;
  --radius-card:14px;
  --radius-panel:20px;
  --radius-cta:24px;
  --shadow-sm:0 1px 2px rgba(22,33,30,.06);
  --shadow-md:0 6px 20px -10px rgba(22,33,30,.18);
  --shadow-lg:0 18px 44px -20px rgba(22,33,30,.28);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:Inter,ui-sans-serif,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::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:1.8;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
@media (max-width:1023px){.container{padding:0 32px;}}
@media (max-width:767px){.container{padding:0 24px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.header-inner{
  display:flex;
  align-items:center;
  gap:32px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--primary);
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--primary);
  color:#fff;
  font-size:17px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.01em;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.04em;}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:19px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{
  background:transparent;
  color:var(--ink);
  border:1px solid var(--border-strong);
}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary);background:var(--surface-alt);}
.btn-secondary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--ink-2);
  border:1px solid transparent;
  padding:11px 16px;
}
.btn-ghost:hover{color:var(--primary);background:var(--surface-alt);border-color:var(--border);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#F1F6F3;color:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn.is-disabled,.btn:disabled{background:var(--border-strong);color:#fff;box-shadow:none;transform:none;cursor:not-allowed;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--border);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  background:var(--surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- mega panel ---------- */
.mega-wrap{position:relative;}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:720px;
  padding:28px;
  display:grid;
  grid-template-columns:1fr 1fr 250px;
  gap:26px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-lg);
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--muted);
  margin-bottom:12px;
}
.mega-list{display:flex;flex-direction:column;gap:2px;}
.mega-list a{
  display:block;
  padding:9px 10px;
  border-radius:10px;
  color:var(--ink);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.mega-list a:hover{background:var(--accent-soft);color:var(--accent);transform:translateX(2px);}
.mega-list .mega-item-title{display:block;font-size:14.5px;font-weight:600;}
.mega-list .mega-item-desc{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:2px;}
.mega-card{
  display:block;
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  background:var(--surface-alt);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent-border);}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mega-card-body{padding:12px 14px 14px;}
.mega-card-body strong{display:block;font-size:14.5px;color:var(--ink);}
.mega-card-arrow{display:inline-block;margin-top:6px;font-size:13px;color:var(--primary);}
.mega-card-arrow::after{content:"→";margin-left:6px;display:inline-block;transition:transform .18s ease;}
.mega-card:hover .mega-card-arrow::after{transform:translateX(3px);}
.mega-mini{border-top:1px solid var(--border);margin-top:16px;padding-top:14px;display:flex;flex-direction:column;gap:8px;}
.mega-mini a{display:block;font-size:13px;color:var(--ink-2);line-height:1.5;transition:color .18s ease;}
.mega-mini a:hover{color:var(--accent);}
.mega-mini time{display:block;font-size:11.5px;color:var(--muted);}

/* ---------- mobile nav ---------- */
.mobile-nav{display:none;}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-cta{display:none;}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-nav.is-open{
    display:block;
    border-top:1px solid var(--border);
    padding:10px 32px 22px;
    background:var(--surface);
  }
  .mobile-nav a{
    display:flex;
    align-items:center;
    height:44px;
    font-size:15px;
    color:var(--ink-2);
    border-bottom:1px solid var(--border);
  }
  .mobile-nav a:last-of-type{border-bottom:0;}
  .mobile-nav a.is-active{color:var(--primary);font-weight:600;}
  .mobile-nav .mobile-cta{
    margin-top:14px;
    height:46px;
    justify-content:center;
    background:var(--primary);
    color:#fff;
    border-radius:var(--radius-btn);
    font-weight:600;
    border-bottom:0;
  }
}
@media (max-width:767px){
  .header-inner{height:60px;gap:14px;}
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:10px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:10.5px;}
  .mobile-nav.is-open{padding:10px 24px 20px;}
}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--surface-alt);border-bottom:1px solid var(--border);}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--border-strong);}
.crumb .current{color:var(--ink-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.3;
}
.article-head{margin-bottom:32px;}
.article-head h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.28;
  margin:18px 0 16px;
  color:var(--ink);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.article-meta .dot{color:var(--border-strong);}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.article-cover{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
  object-position:center;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  margin-top:26px;
}
.article-body{
  font-size:17.5px;
  line-height:1.85;
  color:var(--ink);
  max-width:760px;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  margin:48px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--accent);
  color:var(--ink);
}
.article-body h3{
  font-size:20px;
  line-height:1.4;
  margin:32px 0 12px;
  color:var(--ink);
}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul li{list-style:disc;margin-bottom:8px;}
.article-body ol li{list-style:decimal;margin-bottom:8px;}
.article-body li::marker{color:var(--accent);}
.article-body blockquote{
  margin:24px 0;
  padding:20px 22px;
  background:var(--surface-alt);
  border-left:3px solid var(--accent);
  border-radius:12px;
  color:var(--ink-2);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-body .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border);border-radius:12px;}
.article-body th{
  background:var(--accent-soft);
  color:var(--primary);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--ink-2);}
.article-body tr:last-child td{border-bottom:0;}
.article-body tbody tr:nth-child(even) td{background:var(--surface-alt);}
.article-body hr{border:0;border-top:1px solid var(--border);margin:40px 0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.9em;
  background:var(--surface-alt);
  border:1px solid var(--border);
  border-radius:6px;
  padding:1px 6px;
}
.article-body .note,
.article-body .tip{
  display:block;
  margin:24px 0;
  padding:16px 20px;
  border-radius:12px;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-2);
}
.article-body .note{background:var(--accent-soft);border-left:3px solid var(--accent);}
.article-body .tip{background:var(--action-soft);border-left:3px solid var(--action);}
.article-body .note p:last-child,.article-body .tip p:last-child{margin-bottom:0;}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--surface);
  border:1px dashed var(--border-strong);
  border-radius:var(--radius-card);
  padding:48px 24px;
  text-align:center;
}
.empty-icon{
  width:40px;height:40px;
  margin:0 auto 16px;
  border-radius:50%;
  border:1.5px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
  font-size:16px;
}
.empty-state h3{font-size:16px;color:var(--ink);margin-bottom:8px;}
.empty-state p{font-size:13px;color:var(--muted);margin-bottom:20px;}
.empty-state .btn{font-size:14px;padding:10px 18px;}

/* ---------- sidebar ---------- */
.article-aside{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.aside-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px;
}
.aside-card h2{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  padding-left:10px;
  border-left:3px solid var(--accent);
  line-height:1.3;
}
.aside-links{display:flex;flex-direction:column;gap:2px;}
.aside-links a{
  display:block;
  padding:10px 0;
  border-bottom:1px solid var(--border);
  color:var(--ink);
  font-size:14.5px;
  line-height:1.55;
  transition:color .18s ease;
}
.aside-links a:last-child{border-bottom:0;}
.aside-links a:hover{color:var(--accent);}
.aside-links .aside-link-title{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.aside-links .aside-link-sub{display:block;font-size:12px;color:var(--muted);margin-top:3px;}
.aside-cta{
  background:var(--primary);
  border-radius:var(--radius-card);
  padding:24px 22px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.aside-cta::after{
  content:"";
  position:absolute;
  right:-40px;bottom:-40px;
  width:130px;height:130px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
}
.aside-cta h3{font-size:16px;margin-bottom:8px;color:#fff;position:relative;z-index:1;}
.aside-cta p{font-size:13px;line-height:1.7;color:#C9D5D0;margin-bottom:16px;position:relative;z-index:1;}
.aside-cta .btn{width:100%;font-size:14px;padding:11px 16px;position:relative;z-index:1;}
.aside-back{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  color:var(--primary);
  font-weight:600;
  padding:2px 0;
}
.aside-back::before{content:"←";transition:transform .18s ease;}
.aside-back:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.aside-back:hover::before{transform:translateX(-3px);}

/* ---------- full width cta ---------- */
.cta-block{
  margin-top:64px;
  background:var(--primary);
  border-radius:var(--radius-cta);
  padding:56px 48px;
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.4fr .6fr;
  gap:32px;
  align-items:center;
}
.cta-block::before,
.cta-block::after{
  content:"";
  position:absolute;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-block::before{width:340px;height:340px;right:-80px;top:-120px;}
.cta-block::after{width:220px;height:220px;right:40px;bottom:-120px;}
.cta-content{position:relative;z-index:2;}
.cta-content h2{
  font-size:clamp(22px,2.6vw,30px);
  color:#fff;
  margin-bottom:12px;
}
.cta-content p{
  font-size:15px;
  color:#C9D5D0;
  line-height:1.8;
  max-width:520px;
  margin-bottom:24px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-deco{
  position:relative;
  z-index:2;
  display:flex;
  justify-content:flex-end;
}
.cta-deco img{
  width:100%;
  max-width:240px;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:16px;
  opacity:.9;
}

/* ---------- related cards ---------- */
.related{margin-top:64px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(21px,2.4vw,28px);
  color:var(--ink);
}
.section-head .section-sub{font-size:14px;color:var(--muted);margin-top:8px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  white-space:nowrap;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover::after{transform:translateX(3px);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent-border);}
.card-media{position:relative;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-badge{
  position:absolute;
  left:12px;top:12px;
  padding:4px 10px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  line-height:1.4;
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:17.5px;
  line-height:1.5;
  color:var(--ink);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--muted);
}
.card-foot .arrow{color:var(--primary);font-size:14px;transition:transform .18s ease;}
.card:hover .card-foot .arrow{transform:translateX(3px);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--primary-700);
  color:#C9D5D0;
  margin-top:96px;
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#9FB3AC;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:#C9D5D0;
  margin:18px 0 14px;
  max-width:280px;
}
.footer-domain{font-size:13px;color:#8FA49D;letter-spacing:.04em;}
.footer-col h4{
  font-size:14px;
  color:#fff;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:#C9D5D0;
  transition:color .18s ease;
  width:fit-content;
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:#9FB3AC;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:40px;}
  .article-aside{
    position:static;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
  }
  .cta-block{grid-template-columns:1fr;padding:44px 32px;}
  .cta-deco{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .article-wrap{padding:36px 0 64px;}
  .article-body{font-size:17px;line-height:1.85;}
  .article-cover{aspect-ratio:16/9;}
  .article-aside{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .related,.cta-block{margin-top:48px;}
  .cta-block{padding:36px 24px;border-radius:20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding:48px 0 28px;margin-top:64px;}
  .aside-card{padding:18px;}
}
@media (max-width:560px){
  .crumb{font-size:12.5px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16.5px;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#17453B;
  --primary-700:#0F332C;
  --primary-600:#1F5A4C;
  --accent:#3FB08C;
  --accent-soft:#E6F4EF;
  --accent-border:rgba(63,176,140,.35);
  --action:#C4623C;
  --action-soft:#FBEDE6;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F4;
  --ink:#16211E;
  --ink-2:#445250;
  --muted:#6E7A76;
  --border:#E3DFD4;
  --border-strong:#CFC9BA;
  --success:#2E8B62;
  --warn:#C4623C;
  --danger:#C0453B;
  --focus:0 0 0 3px rgba(63,176,140,.45);
  --r-btn:10px;
  --r-input:12px;
  --r-card:14px;
  --r-panel:20px;
  --r-cta:24px;
  --sh-sm:0 1px 2px rgba(22,33,30,.06);
  --sh-md:0 6px 20px -10px rgba(22,33,30,.18);
  --sh-lg:0 18px 44px -20px rgba(22,33,30,.28);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:88px;--sp-10:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:768px){ .container{padding-left:32px;padding-right:32px;} }
@media (min-width:1024px){ .container{padding-left:40px;padding-right:40px;} }

.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:768px){ .section{padding-top:72px;padding-bottom:72px;} }
@media (min-width:1024px){ .section{padding-top:96px;padding-bottom:96px;} }

.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{margin-bottom:12px;}
.section-sub{color:var(--ink-2);font-size:16px;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--primary-600);background:var(--accent-soft);
  border:1px solid var(--accent-border);
  padding:6px 12px;border-radius:999px;margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  min-height:44px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
.btn-outline{background:transparent;border-color:var(--border-strong);color:var(--ink);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--surface-alt);}
.btn-outline:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:var(--accent-soft);color:var(--primary-700);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.1);}
.btn:disabled{background:var(--border-strong);color:#fff;box-shadow:none;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  text-decoration:underline;text-decoration-color:transparent;
  text-underline-offset:3px;
  transition:color .18s ease,gap .18s ease,text-decoration-color .18s ease;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{color:var(--accent);text-decoration-color:var(--accent);}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:999px;
}
.badge-cat{background:var(--accent-soft);color:var(--primary);border:1px solid var(--accent-border);}
.badge-rec{background:var(--action);color:#fff;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm);}
.header-inner{
  position:relative;
  display:flex;align-items:center;gap:24px;
  height:60px;
}
@media (min-width:1024px){ .header-inner{height:72px;gap:32px;} }

.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.02em;}
@media (max-width:559px){
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
}

.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.mega-wrap{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid var(--border);border-radius:var(--r-btn);
  padding:9px 14px;min-height:40px;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.mega-toggle::after{content:"⌄";font-size:13px;line-height:1;transform:translateY(-1px);}
.mega-toggle:hover{border-color:var(--primary);color:var(--primary);background:var(--surface-alt);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:720px;max-width:calc(100vw - 48px);
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-lg);
  padding:28px;
  display:grid;grid-template-columns:1fr 1fr 260px;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-bottom:12px;}
.mega-list a{
  display:block;padding:9px 0;
  border-bottom:1px dashed var(--border);
  transition:transform .16s ease;
}
.mega-list a:last-child{border-bottom:0;}
.mega-list .mega-name{display:block;font-size:14px;font-weight:600;color:var(--ink);transition:color .16s ease;}
.mega-list .mega-desc{display:block;font-size:12px;color:var(--muted);line-height:1.6;}
.mega-list a:hover{transform:translateX(2px);}
.mega-list a:hover .mega-name{color:var(--accent);}
.mega-card{
  display:block;background:var(--surface-alt);
  border:1px solid var(--border);border-radius:12px;
  padding:12px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--accent-border);}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:8px;margin-bottom:10px;}
.mega-card strong{display:block;font-size:14px;color:var(--ink);}
.mega-card span{font-size:13px;font-weight:600;color:var(--accent);}
.mega-latest{margin-top:16px;}
.mega-latest a{display:flex;justify-content:space-between;gap:10px;padding:7px 0;font-size:13px;color:var(--ink-2);}
.mega-latest a:hover{color:var(--accent);}
.mega-latest time{font-size:12px;color:var(--muted);white-space:nowrap;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--border);
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s ease,top .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

@media (max-width:1023px){
  .main-nav{
    position:absolute;left:-24px;right:-24px;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:var(--sh-md);
    padding:8px 24px 20px;
    margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 0;border-bottom:1px solid var(--border);font-size:16px;min-height:44px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--primary);}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{padding:10px 16px;font-size:14px;}
}
@media (max-width:559px){
  .header-actions .btn-primary span.long{display:none;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:24px;}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb-list a{color:var(--muted);}
.breadcrumb-list a:hover{color:var(--accent);}
.breadcrumb-list .sep{color:var(--border-strong);}
.breadcrumb-list .current{color:var(--ink-2);font-weight:500;}

/* ---------- Hero ---------- */
.hero{padding-top:32px;padding-bottom:56px;}
@media (min-width:1024px){ .hero{padding-top:48px;padding-bottom:96px;} }
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
@media (min-width:900px){ .hero-grid{grid-template-columns:1.15fr .85fr;gap:56px;} }
.hero h1{margin-bottom:20px;color:var(--primary);}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:13px;color:var(--muted);}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta span::before{content:"·";color:var(--border-strong);}
.hero-meta span:first-child::before{display:none;}

.hero-figure{position:relative;margin:0;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--border);
  box-shadow:var(--sh-md);
  max-width:360px;
}
@media (max-width:899px){ .hero-figure img{max-width:100%;} }
.hero-stat{
  position:absolute;right:-8px;bottom:-16px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:14px 18px;
  display:flex;align-items:baseline;gap:6px;
  max-width:220px;
}
.hero-stat-label{position:absolute;left:18px;top:-11px;background:var(--surface);padding:0 6px;font-size:12px;color:var(--muted);}
.hero-stat-value{font-size:30px;font-weight:700;color:var(--action);line-height:1.1;}
.hero-stat-unit{font-size:13px;color:var(--muted);}

/* ---------- 信任条 ---------- */
.trust-bar{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding:28px 0;}
@media (min-width:768px){ .trust-grid{grid-template-columns:repeat(4,1fr);gap:32px;padding:32px 0;} }
.trust-item{display:flex;flex-direction:column;gap:4px;}
.trust-num{font-size:26px;font-weight:700;color:var(--primary);line-height:1.2;}
@media (min-width:768px){ .trust-num{font-size:30px;} }
.trust-label{font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- 权益对比表 ---------- */
.compare-wrap{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-panel);
  padding:8px;
  box-shadow:var(--sh-sm);
}
.cmp-head,.cmp-row{
  display:grid;
  grid-template-columns:1.15fr .9fr 1fr 1.45fr;
  gap:16px;
  align-items:center;
}
.cmp-head{
  padding:18px 20px;
  background:var(--surface-alt);
  border-radius:14px;
  font-size:13px;font-weight:600;color:var(--muted);
}
.cmp-head .cmp-cell.featured{
  background:var(--action-soft);
  border-radius:10px;
  padding:10px 12px;
  color:var(--action);
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;
}
.cmp-body{margin-top:8px;}
.cmp-row{
  padding:14px 20px;
  border-radius:12px;
  font-size:15px;
  color:var(--ink-2);
  transition:background .16s ease;
}
.cmp-row:nth-child(odd){background:var(--surface-alt);}
.cmp-row:hover{background:#FAF8F3;}
.cmp-item{font-weight:600;color:var(--ink);}
.cmp-val{display:inline-flex;align-items:center;gap:8px;color:var(--ink);}
.cmp-note{font-size:13.5px;color:var(--muted);line-height:1.7;}
.mk{width:16px;height:16px;flex-shrink:0;position:relative;display:inline-block;}
.mk-yes{border:1.5px solid var(--success);border-radius:50%;}
.mk-yes::after{
  content:"";position:absolute;left:4px;top:1.5px;
  width:5px;height:8px;border-right:1.5px solid var(--success);border-bottom:1.5px solid var(--success);
  transform:rotate(42deg);
}
.mk-no{border:1.5px solid var(--border-strong);border-radius:50%;}
.mk-no::before,.mk-no::after{
  content:"";position:absolute;left:4px;top:6.5px;width:6px;height:1.5px;background:var(--muted);
}
.mk-no::before{transform:rotate(45deg);}
.mk-no::after{transform:rotate(-45deg);}
.cmp-foot{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  padding:20px 20px 12px;
  border-top:1px dashed var(--border);
  margin-top:8px;
  font-size:13px;color:var(--muted);
}
@media (max-width:767px){
  .compare-wrap{background:transparent;border:0;padding:0;box-shadow:none;}
  .cmp-head{display:none;}
  .cmp-body{display:grid;gap:14px;margin-top:0;}
  .cmp-row{
    grid-template-columns:1fr;
    gap:2px;
    padding:18px;
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--r-card);
    box-shadow:var(--sh-sm);
  }
  .cmp-row:nth-child(odd){background:var(--surface);}
  .cmp-row:hover{background:var(--surface);border-color:var(--accent-border);}
  .cmp-row .cmp-cell{padding:5px 0;font-size:14.5px;}
  .cmp-row .cmp-item{font-size:16px;margin-bottom:4px;}
  .cmp-row .cmp-cell[data-label]::before{
    content:attr(data-label);
    display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:2px;
  }
  .cmp-foot{border-top:0;padding:12px 0 0;}
}

/* ---------- 等级阶梯 ---------- */
.ladder-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.ladder{
  display:grid;grid-template-columns:1fr;gap:20px;
  counter-reset:step;
}
@media (min-width:900px){ .ladder{grid-template-columns:repeat(3,1fr);gap:24px;} }
.ladder-step{
  position:relative;
  background:var(--surface-alt);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.ladder-step:hover{border-color:var(--accent-border);box-shadow:var(--sh-md);transform:translateY(-2px);}
.ladder-step::before{
  content:"";
  position:absolute;top:0;left:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%);
  border-radius:14px 14px 0 0;
}
.ladder-num{
  display:block;
  font-size:34px;font-weight:700;line-height:1;
  color:var(--action);
  margin-bottom:14px;
}
.ladder-step h3{margin-bottom:8px;}
.ladder-step > p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;}
.ladder-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;color:var(--ink-2);
  line-height:1.75;
  margin-bottom:6px;
}
.ladder-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:50%;
  background:var(--accent-soft);
  border:1.5px solid var(--accent);
}
.ladder-step .badge{margin-bottom:12px;}

/* ---------- 图文核对块 ---------- */
.check-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:900px){ .check-grid{grid-template-columns:.9fr 1.1fr;gap:56px;} }
.check-figure{margin:0;}
.check-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--border);
  box-shadow:var(--sh-md);
}
.check-body h2{margin-bottom:14px;color:var(--primary);}
.check-body > p{color:var(--ink-2);margin-bottom:22px;}
.check-list li{
  display:flex;gap:14px;
  padding:16px 0;
  border-bottom:1px dashed var(--border);
}
.check-list li:last-child{border-bottom:0;}
.check-idx{
  flex-shrink:0;
  width:28px;height:28px;border-radius:8px;
  background:var(--accent-soft);
  border:1px solid var(--accent-border);
  color:var(--primary);
  font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.check-list strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:2px;}
.check-list span{font-size:14px;color:var(--muted);line-height:1.7;display:block;}
.check-body .link-arrow{margin-top:24px;}

/* ---------- FAQ ---------- */
.faq-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-input);
  margin-bottom:12px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--border-strong);}
.faq-item.is-open{border-color:var(--accent-border);background:var(--surface-alt);box-shadow:var(--sh-sm);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;
  padding:20px 24px;
  font-size:16.5px;font-weight:600;color:var(--ink);
  line-height:1.5;
  min-height:44px;
}
.faq-q:hover{color:var(--primary);}
.faq-q .q-text{position:relative;padding-left:14px;}
.faq-q .q-text::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:2px;border-radius:2px;
  background:var(--border-strong);transition:background .18s ease;
}
.faq-item.is-open .faq-q .q-text::before{background:var(--accent);}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;transition:transform .2s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary-600);border-radius:1px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px;}
.faq-icon::after{left:7px;top:0;width:1.5px;height:16px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  display:none;
  padding:0 24px 22px 38px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- CTA ---------- */
.cta-section{padding-top:56px;padding-bottom:56px;}
@media (min-width:1024px){ .cta-section{padding-top:88px;padding-bottom:88px;} }
.cta-block{
  position:relative;overflow:hidden;
  background:var(--primary-700);
  border-radius:var(--r-cta);
  padding:44px 28px;
  color:#fff;
}
@media (min-width:768px){ .cta-block{padding:64px 56px;} }
.cta-block::before{
  content:"";position:absolute;right:-80px;top:-70px;
  width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-block::after{
  content:"";position:absolute;right:40px;bottom:-140px;
  width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:640px;}
.cta-inner h2{color:#fff;margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--primary-700);
  color:#C9D5D0;
  padding-top:56px;
  padding-bottom:28px;
}
@media (min-width:1024px){ .site-footer{padding-top:64px;padding-bottom:32px;} }
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-bottom:40px;
}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;} }
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin-bottom:12px;max-width:280px;}
.footer-domain{font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.02em;}
.footer-col h4{
  font-size:13px;font-weight:600;color:#fff;
  letter-spacing:.06em;margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:#C9D5D0;
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;
  transition:color .18s ease,text-decoration-color .18s ease;
  min-height:24px;
}
.footer-links a:hover{color:#fff;text-decoration-color:rgba(255,255,255,.6);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:24px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
  line-height:1.7;
}
@media (max-width:767px){
  .footer-grid{gap:28px;}
}

/* roulang page: category2 */
:root{
  --primary:#17453B;
  --primary-700:#0F332C;
  --primary-600:#1F5A4C;
  --accent:#3FB08C;
  --accent-soft:#E6F4EF;
  --accent-line:rgba(63,176,140,.35);
  --action:#C4623C;
  --action-soft:#FBEDE6;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F4;
  --ink:#16211E;
  --ink-2:#445250;
  --muted:#6E7A76;
  --border:#E3DFD4;
  --border-strong:#CFC9BA;
  --success:#2E8B62;
  --warn:#C4623C;
  --danger:#C0453B;
  --focus:0 0 0 3px rgba(63,176,140,.45);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  --r-btn:10px;
  --r-input:12px;
  --r-card:14px;
  --r-panel:20px;
  --r-cta:24px;
  --sh-sm:0 1px 2px rgba(22,33,30,.06);
  --sh-md:0 6px 20px -10px rgba(22,33,30,.18);
  --sh-lg:0 18px 44px -20px rgba(22,33,30,.28);
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:88px;--space-10:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  box-shadow:var(--sh-sm);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;
  border-radius:10px;
  font-size:16px;font-weight:600;line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--primary-700);}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.02em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;
  font-size:15px;color:var(--ink-2);
  border-radius:8px;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--surface-alt);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;
  height:2px;background:var(--primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border-strong);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--surface-alt);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#F1F6F4;color:var(--primary-700);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn[disabled],.btn.is-disabled{background:var(--border-strong);color:#fff;box-shadow:none;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  text-decoration:underline;text-decoration-color:transparent;
  text-underline-offset:3px;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{color:var(--accent);text-decoration-color:var(--accent);}
.link-arrow:hover::after{transform:translateX(3px);}

/* Mega 菜单 */
.mega-wrap{position:relative;}
.mega-trigger{min-height:40px;padding:9px 16px;font-size:14.5px;}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:720px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-lg);
  padding:28px;
  display:grid;
  grid-template-columns:1.25fr .95fr;
  gap:28px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted);margin-bottom:12px;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px;}
.mega-item{display:block;padding:9px 8px;border-radius:8px;transition:background-color .16s ease,transform .16s ease;}
.mega-item:hover{background:var(--surface-alt);transform:translateX(2px);}
.mega-item-name{display:block;font-size:14.5px;font-weight:600;color:var(--ink);}
.mega-item:hover .mega-item-name{color:var(--accent);}
.mega-item-desc{display:block;font-size:12.5px;color:var(--muted);line-height:1.5;margin-top:2px;}
.mega-side{display:flex;flex-direction:column;gap:14px;}
.mega-card{
  display:block;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--surface);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--accent-line);}
.mega-card-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-alt);}
.mega-card-thumb img{width:100%;height:100%;object-fit:cover;}
.mega-card-body{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.mega-card-title{font-size:14px;font-weight:600;color:var(--ink);}
.mega-card-go{color:var(--accent);font-size:14px;}
.mega-latest{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--border);padding-top:14px;}
.mega-latest a{display:flex;align-items:baseline;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--ink-2);}
.mega-latest a:hover{color:var(--accent);}
.mega-latest time{font-size:12px;color:var(--muted);white-space:nowrap;}

/* 移动端导航按钮 */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
  background:var(--surface);
  border:1px solid var(--border-strong);
  border-radius:10px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--muted);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--border-strong);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--ink-2);}

/* ============ Hero ============ */
.page-hero{padding:40px 0 72px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--accent-line);
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--primary-700);
  max-width:16em;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:32em;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-trust{
  margin-top:26px;
  display:flex;flex-wrap:wrap;gap:8px 14px;
  font-size:13px;color:var(--muted);
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;}
.hero-trust span+span::before{content:"·";color:var(--border-strong);}
.hero-figure{position:relative;}
.hero-figure .figure-frame{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--sh-md);
  background:var(--surface-alt);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-datacard{
  position:absolute;right:-10px;bottom:-18px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:14px 18px;
  display:flex;align-items:baseline;gap:8px;
}
.hero-datacard .value{font-size:26px;font-weight:700;color:var(--primary);line-height:1;}
.hero-datacard .unit{font-size:12.5px;color:var(--muted);}

/* ============ 指标条 ============ */
.metrics{
  background:var(--surface);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;
}
.metric{padding:28px 24px;border-left:1px solid var(--border);}
.metric:first-child{border-left:none;}
.metric .value{font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;}
.metric .label{margin-top:6px;font-size:13px;color:var(--muted);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;
  color:var(--primary-700);
}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.section-head-row .section-head{margin-bottom:0;}

/* ============ 内容布局：筛选 + 卡片 ============ */
.content-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start;}
.filter-panel{
  position:sticky;top:96px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:20px;
}
.filter-title{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin-bottom:12px;}
.chip-list{display:flex;flex-direction:column;gap:6px;}
.chip{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:44px;padding:10px 14px;
  font-size:14.5px;color:var(--ink-2);
  background:transparent;border:1px solid transparent;border-radius:10px;
  text-align:left;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:var(--surface-alt);color:var(--primary);border-color:var(--border);}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;}
.chip.is-active .chip-count{color:rgba(255,255,255,.8);}
.chip-count{font-size:12px;color:var(--muted);}
.filter-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--border);font-size:13px;color:var(--muted);line-height:1.7;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.content-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.content-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--accent-line);}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.content-card:hover .card-thumb img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;top:12px;
  padding:5px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--primary);
  font-size:12px;font-weight:600;line-height:1;
  border:1px solid var(--accent-line);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);}
.card-body p{font-size:14.5px;line-height:1.75;color:var(--ink-2);}
.card-meta{
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.card-meta .go{color:var(--primary);font-weight:600;transition:transform .18s ease,color .18s ease;}
.content-card:hover .card-meta .go{color:var(--accent);transform:translateX(3px);}

/* 分页占位 */
.pager{
  margin-top:36px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  flex-wrap:wrap;
}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 14px;
  font-size:14px;color:var(--ink-2);
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:10px;
  transition:border-color .16s ease,color .16s ease,background-color .16s ease;
}
.pager a:hover{border-color:var(--primary);color:var(--primary);}
.pager .is-current{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;}
.pager .is-disabled{color:var(--border-strong);cursor:not-allowed;}

/* ============ 更新节奏表 ============ */
.rhythm-table{
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--surface);
}
.rhythm-head,
.rhythm-row{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:16px;
  align-items:center;
  padding:0 24px;
}
.rhythm-head{
  min-height:56px;
  background:var(--accent-soft);
  font-size:13px;font-weight:600;color:var(--primary-700);
  letter-spacing:.02em;
}
.rhythm-row{min-height:64px;border-top:1px solid var(--border);font-size:15px;color:var(--ink-2);transition:background-color .16s ease;}
.rhythm-row:nth-child(odd){background:var(--surface-alt);}
.rhythm-row:hover{background:#FAF8F3;}
.rhythm-row .name{font-weight:600;color:var(--ink);}
.level-tag{
  display:inline-block;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;
  background:var(--accent-soft);color:var(--primary);border:1px solid var(--accent-line);
}
.level-tag.is-action{background:var(--action-soft);color:var(--action);border-color:rgba(196,98,60,.28);}

/* ============ 阅读与提醒 ============ */
.reading-grid{display:grid;grid-template-columns:1fr .9fr;gap:56px;align-items:center;}
.reading-text h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--primary-700);
}
.reading-text p{margin-top:14px;font-size:16px;color:var(--ink-2);}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-mark{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--primary);
  border:1px solid var(--accent-line);
  margin-top:3px;
}
.check-mark svg{width:12px;height:12px;}
.check-item h3{font-size:16.5px;font-weight:600;color:var(--ink);}
.check-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-top:4px;}
.reading-figure{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh-sm);background:var(--surface-alt);aspect-ratio:5/4;}
.reading-figure img{width:100%;height:100%;object-fit:cover;object-position:center;}

/* ============ 提示框 ============ */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--action-soft);
  border:1px solid rgba(196,98,60,.25);
  border-left:3px solid var(--action);
  border-radius:var(--r-card);
  padding:18px 22px;
}
.notice-icon{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--action);color:#fff;font-size:13px;font-weight:700;line-height:1;margin-top:2px;
}
.notice h3{font-size:16px;font-weight:600;color:var(--primary-700);}
.notice p{margin-top:6px;font-size:14.5px;line-height:1.75;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-intro h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--primary-700);
}
.faq-intro p{margin-top:14px;font-size:15.5px;color:var(--ink-2);}
.faq-intro .link-arrow{margin-top:22px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-input);
  transition:border-color .18s ease,background-color .18s ease;
}
.faq-item[open]{border-color:var(--accent-line);background:var(--surface-alt);}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";flex:0 0 2px;width:2px;height:18px;
  background:var(--border-strong);border-radius:2px;transition:background-color .18s ease;
}
.faq-item[open] summary::before{background:var(--accent);}
.faq-q{flex:1;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform .2s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:1px;}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1px;}
.faq-icon::after{left:7.5px;top:0;width:1px;height:16px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 24px 22px 40px;}
.faq-a p{font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ============ 整幅 CTA ============ */
.cta-section{padding:0 0 96px;}
.cta-block{
  position:relative;
  background:var(--primary);
  border-radius:var(--r-cta);
  padding:64px 56px;
  overflow:hidden;
  color:#fff;
}
.cta-block .cta-inner{position:relative;z-index:2;max-width:640px;}
.cta-block h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;color:#fff;
}
.cta-block p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);}
.cta-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.cta-deco{position:absolute;right:-60px;top:50%;transform:translateY(-50%);width:420px;height:420px;pointer-events:none;z-index:1;}
.cta-deco span{
  position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.18);
}
.cta-deco span:nth-child(1){inset:0;}
.cta-deco span:nth-child(2){inset:60px;}
.cta-deco span:nth-child(3){inset:120px;border-color:rgba(255,255,255,.12);}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-700);color:#C9D5D0;padding:64px 0 32px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);max-width:20em;}
.footer-domain{display:inline-block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:#C9D5D0;
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;
  transition:color .18s ease,text-decoration-color .18s ease;
}
.footer-links a:hover{color:#fff;text-decoration-color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding-left:32px;padding-right:32px;}
  .mega-panel{width:640px;}
}
@media (max-width:1023px){
  .container{padding-left:32px;padding-right:32px;}
  .header-inner{height:64px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:var(--sh-md);
    padding:10px 24px 18px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:46px;padding:0 10px;font-size:15px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--accent-soft);}
  .header-cta{display:none;}
  .mega-panel{
    position:static;width:100%;margin-top:10px;
    opacity:1;visibility:visible;transform:none;
    display:none;
    box-shadow:none;
    border-radius:var(--r-card);
    padding:18px;
    grid-template-columns:1fr;
    gap:18px;
  }
  .mega-wrap.is-open .mega-panel{display:grid;}
  .mega-wrap{position:static;}
  .btn-primary.header-cta{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{max-width:520px;}
  .hero-datacard{right:0;bottom:-16px;}
  .content-layout{grid-template-columns:1fr;gap:24px;}
  .filter-panel{position:static;padding:16px;}
  .chip-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch;}
  .chip{white-space:nowrap;flex:0 0 auto;border:1px solid var(--border);border-radius:999px;}
  .filter-note{display:none;}
  .reading-grid{grid-template-columns:1fr;gap:36px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric{border-left:none;border-top:1px solid var(--border);padding:24px 20px;}
  .metric:nth-child(-n+2){border-top:none;}
  .rhythm-head{display:none;}
  .rhythm-row{
    grid-template-columns:1fr 1fr;
    gap:10px 16px;
    padding:18px 20px;
    align-items:start;
  }
  .rhythm-row .cell{display:flex;flex-direction:column;gap:2px;}
  .rhythm-row .cell::before{
    content:attr(data-label);
    font-size:12px;color:var(--muted);letter-spacing:.02em;
  }
  .rhythm-row .name{grid-column:1/-1;}
  .rhythm-row .name::before{content:none;}
  .cta-block{padding:48px 32px;}
  .cta-deco{right:-140px;opacity:.7;}
}
@media (max-width:767px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:56px 0;}
  .page-hero{padding:32px 0 56px;}
  .breadcrumb{padding:16px 0 0;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-trust{font-size:12.5px;}
  .card-grid{grid-template-columns:1fr;}
  .faq-item summary{padding:18px 18px;}
  .faq-a{padding:0 18px 18px 34px;}
  .cta-block{padding:40px 24px;border-radius:20px;}
  .cta-section{padding:0 0 56px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start;gap:8px;}
  .reading-figure{aspect-ratio:16/10;}
  .mega-list{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric .value{font-size:24px;}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:559px){
  .hero-datacard{position:static;margin-top:14px;display:inline-flex;}
  .hero-figure .figure-frame{border-radius:16px;}
  .rhythm-row{grid-template-columns:1fr;}
  .pager a,.pager span{min-width:40px;height:40px;padding:0 10px;font-size:13px;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric{padding:20px 16px;}
  .metric .value{font-size:22px;}
  .metric .label{font-size:12px;}
}

/* roulang page: category3 */
:root{
  --primary:#17453B;
  --primary-700:#0F332C;
  --primary-600:#1F5A4C;
  --accent:#3FB08C;
  --accent-soft:#E6F4EF;
  --accent-border:rgba(63,176,140,.35);
  --action:#C4623C;
  --action-soft:#FBEDE6;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#FBF9F4;
  --ink:#16211E;
  --ink-2:#445250;
  --muted:#6E7A76;
  --border:#E3DFD4;
  --border-strong:#CFC9BA;
  --success:#2E8B62;
  --warn:#C4623C;
  --danger:#C0453B;
  --focus:0 0 0 3px rgba(63,176,140,.45);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:Inter,ui-sans-serif,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  --r-btn:10px;
  --r-input:12px;
  --r-card:14px;
  --r-panel:20px;
  --r-cta:24px;
  --sh-sm:0 1px 2px rgba(22,33,30,.06);
  --sh-md:0 6px 20px -10px rgba(22,33,30,.18);
  --sh-lg:0 18px 44px -20px rgba(22,33,30,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);font-weight:700;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:21px;font-weight:600;line-height:1.4}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--surface);
  padding:10px 18px;border-radius:0 0 var(--r-btn) 0;z-index:200;
}
.skip-link:focus{left:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.header-inner{
  display:flex;align-items:center;gap:32px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  background:var(--primary);color:#fff;
  border-radius:11px;font-size:17px;font-weight:700;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;height:40px;
  padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--surface-alt)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;
  height:2px;border-radius:2px;background:var(--primary);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;
  padding:13px 22px;border:1px solid transparent;
  cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-700);border-color:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:var(--surface-alt)}
.btn-ghost:active{transform:none}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-light:hover{background:#EAF3EF;color:var(--primary-700);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn[disabled],.btn.is-disabled{background:var(--border-strong);border-color:var(--border-strong);color:#fff;box-shadow:none;cursor:not-allowed;transform:none}
.btn-more{
  background:transparent;color:var(--ink-2);border:1px solid var(--border);
  padding:11px 16px;font-weight:500;font-size:14.5px;
}
.btn-more:hover{color:var(--primary);border-color:var(--accent-border);background:var(--surface-alt)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:10px;
  background:transparent;border:1px solid var(--border);
  align-items:center;justify-content:center;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}

/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;
  width:720px;max-width:calc(100vw - 48px);
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-panel);box-shadow:var(--sh-lg);
  padding:28px;z-index:110;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:26px}
.mega-title{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--muted);margin-bottom:14px}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:6px 18px}
.mega-list a{
  display:block;padding:9px 8px;border-radius:8px;color:var(--ink);
  transition:background-color .16s ease,color .16s ease,transform .16s ease;
}
.mega-list a:hover{background:var(--surface-alt);color:var(--primary);transform:translateX(2px)}
.mega-item-name{display:block;font-size:14.5px;font-weight:600}
.mega-item-desc{display:block;font-size:12.5px;color:var(--muted);line-height:1.6}
.mega-side{border-left:1px solid var(--border);padding-left:26px}
.mega-card{
  display:block;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;background:var(--surface);color:var(--ink);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--accent-border);color:var(--ink)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card-body{padding:10px 12px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.mega-card-body strong{font-size:14px;font-weight:600}
.mega-card-body .arrow{color:var(--accent);font-size:15px}
.mega-latest{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.mega-latest a{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2)}
.mega-latest a:hover{color:var(--accent)}
.mega-latest .t{font-size:11.5px;color:var(--muted);white-space:nowrap;font-family:var(--font-num)}

/* 移动端抽屉 */
.mobile-drawer{display:none}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--border-strong)}
.crumbs .current{color:var(--ink-2)}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 80px;
  border-bottom:1px solid var(--border);
  background:
    radial-gradient(circle at 88% 12%, rgba(63,176,140,.10) 0, rgba(63,176,140,0) 46%),
    var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(23,69,59,.5) 1px, transparent 1px);
  background-size:22px 22px;opacity:.05;pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.35fr 1fr;
  gap:64px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.1em;
  color:var(--primary-600);background:var(--accent-soft);
  border:1px solid var(--accent-border);border-radius:999px;
  padding:6px 14px;margin-bottom:18px;
}
.page-hero h1{margin-bottom:18px;max-width:19em}
.hero-lead{font-size:17.5px;line-height:1.8;color:var(--ink-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13px;color:var(--muted)}
.hero-meta li{position:relative;padding-left:14px}
.hero-meta li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--border);
  box-shadow:var(--sh-md);
}
.media-note{
  position:absolute;right:-14px;bottom:-18px;
  display:flex;align-items:center;gap:10px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:12px 18px;box-shadow:var(--sh-md);
}
.media-note .big{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--primary);line-height:1;
}
.media-note span.txt{font-size:13px;color:var(--muted);line-height:1.4;max-width:6em}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .kicker{
  display:block;font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--accent);margin-bottom:12px;
}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16.5px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 步骤流 ============ */
.steps{position:relative;margin-top:8px}
.steps::before{
  content:"";position:absolute;left:31px;top:26px;bottom:34px;
  width:2px;background:linear-gradient(180deg,var(--accent-border),var(--border));
}
.step{
  position:relative;display:grid;grid-template-columns:64px 1fr;
  gap:28px;padding-bottom:28px;
}
.step:last-child{padding-bottom:0}
.step-num{
  position:relative;z-index:1;
  width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--border);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:23px;font-weight:700;color:var(--action);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.step-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:26px 28px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.step:hover .step-card{border-color:var(--accent-border);box-shadow:var(--sh-md);transform:translateY(-2px)}
.step:hover .step-num{border-color:var(--accent-border);box-shadow:var(--sh-sm)}
.step-card h3{margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step-tag{
  font-size:11.5px;font-weight:600;letter-spacing:.04em;
  background:var(--accent-soft);color:var(--primary);
  border-radius:999px;padding:3px 10px;
}
.step-card p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px}
.step-points{display:flex;flex-wrap:wrap;gap:8px 10px}
.chip{
  display:inline-flex;align-items:center;
  font-size:12.5px;color:var(--ink-2);
  background:var(--surface-alt);border:1px solid var(--border);
  border-radius:999px;padding:4px 12px;
}

/* ============ 准备清单 ============ */
.prepare{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.prepare-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.prepare-media{position:relative}
.prepare-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-panel);border:1px solid var(--border);box-shadow:var(--sh-sm);
}
.prepare-list{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.prepare-item{
  display:grid;grid-template-columns:40px 1fr;gap:16px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:18px 20px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.prepare-item:hover{border-color:var(--accent-border);box-shadow:var(--sh-sm)}
.prepare-item .idx{
  width:40px;height:40px;border-radius:11px;
  display:grid;place-items:center;background:var(--accent-soft);
  color:var(--primary);font-family:var(--font-num);
  font-variant-numeric:tabular-nums;font-weight:700;font-size:15px;
}
.prepare-item h3{font-size:16.5px;margin-bottom:4px}
.prepare-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-intro h2{margin-bottom:14px}
.faq-intro p{color:var(--ink-2);font-size:15.5px;margin-bottom:22px}
.faq-aside-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:20px 22px;
}
.faq-aside-card h3{font-size:15.5px;margin-bottom:8px}
.faq-aside-card p{font-size:14px;color:var(--muted);margin-bottom:16px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-input);overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--accent-border)}
.faq-item.is-open{border-color:var(--accent-border);background:var(--surface-alt);box-shadow:var(--sh-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;border-left:2px solid transparent;
  padding:20px 22px 20px 20px;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:border-color .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q{border-left-color:var(--accent);color:var(--primary)}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:1px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px}
.faq-icon::after{left:8.25px;top:0;width:1.5px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 22px 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);border-left:2px solid transparent}
.faq-item.is-open .faq-a-inner{border-left-color:var(--accent-border)}

/* ============ 提示框 ============ */
.notice{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  border-radius:var(--r-card);padding:22px 26px;
  border:1px solid var(--border);background:var(--surface);
}
.notice-warn{background:var(--action-soft);border-color:rgba(196,98,60,.28);border-left:3px solid var(--action)}
.notice-mark{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;flex:0 0 38px;
  border:1px solid rgba(196,98,60,.4);color:var(--action);
  font-family:var(--font-num);font-weight:700;font-size:17px;background:#fff;
}
.notice h3{font-size:17px;margin-bottom:8px;color:var(--ink)}
.notice p{font-size:14.8px;line-height:1.85;color:var(--ink-2);margin:0}
.notice ul{margin-top:10px;display:flex;flex-direction:column;gap:6px}
.notice ul li{position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-2)}
.notice ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:1.5px;background:var(--action);
}

/* ============ 整幅 CTA ============ */
.cta-section{padding:0 0 96px}
.cta-block{
  position:relative;overflow:hidden;
  background:var(--primary);color:#fff;
  border-radius:var(--r-cta);
  padding:62px 64px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
}
.cta-block::after{
  content:"";position:absolute;right:-90px;top:-70px;
  width:360px;height:360px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 46px rgba(255,255,255,.05),0 0 0 92px rgba(255,255,255,.04);
  pointer-events:none;
}
.cta-block h2{color:#fff;margin-bottom:14px;position:relative}
.cta-block p{color:rgba(255,255,255,.82);font-size:16px;max-width:34em;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-700);color:#C9D5D0;padding:64px 0 32px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;padding-bottom:44px;
}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(201,213,208,.72)}
.site-footer .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand p{
  font-size:14.5px;line-height:1.85;color:rgba(201,213,208,.86);
  margin:18px 0 14px;max-width:22em;
}
.footer-domain{
  font-family:var(--font-num);font-size:13px;color:rgba(201,213,208,.62);
  letter-spacing:.02em;
}
.footer-col h4{
  font-size:13.5px;font-weight:600;color:#fff;
  letter-spacing:.08em;margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;color:#C9D5D0;width:fit-content;
  transition:color .18s ease;
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap;font-size:13px;color:rgba(201,213,208,.7);
}

/* ============ 移动端吸底 ============ */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--border);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
}
.mobile-bar .btn{width:100%;height:48px}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .header-inner{gap:20px}
  .nav-link{padding:0 9px;font-size:14.5px}
  .mega-panel{width:640px}
}
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:72px 0}
  .page-hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:520px}
  .media-note{right:8px;bottom:-16px}
  .prepare-grid{grid-template-columns:1fr;gap:36px}
  .prepare-media{max-width:560px}
  .faq-layout{grid-template-columns:1fr;gap:36px}
  .cta-block{grid-template-columns:1fr;padding:48px 40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 24px}
  .header-inner{height:60px;gap:12px}
  .main-nav{display:none}
  .nav-actions .btn-more{display:none}
  .nav-actions .btn-cta{display:none}
  .menu-btn{display:inline-flex}
  .brand-mark{width:32px;height:32px;flex-basis:32px;font-size:15px;border-radius:10px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:10.5px}
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:0;visibility:hidden}
  .mobile-drawer{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--surface);border-bottom:1px solid var(--border);
    box-shadow:var(--sh-md);padding:12px 24px 20px;
  }
  .site-header.is-open .mobile-drawer{display:block}
  .mobile-drawer .nav-link{
    display:flex;height:48px;padding:0 8px;font-size:15.5px;
    border-radius:10px;
  }
  .mobile-drawer .nav-link.is-active{background:var(--accent-soft)}
  .mobile-drawer .nav-link.is-active::after{display:none}
  .drawer-cta{margin-top:12px}
  .drawer-cta .btn{width:100%;height:46px}
  .page-hero{padding:36px 0 52px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-meta{font-size:12.5px;gap:8px 16px}
  .steps::before{left:24px;top:20px;bottom:24px}
  .step{grid-template-columns:48px 1fr;gap:16px;padding-bottom:20px}
  .step-num{width:48px;height:48px;font-size:18px}
  .step-card{padding:20px}
  .step-card p{font-size:15px}
  .prepare-item{grid-template-columns:34px 1fr;gap:12px;padding:16px}
  .prepare-item .idx{width:34px;height:34px;font-size:14px;border-radius:9px}
  .faq-q{padding:18px 18px 18px 16px;font-size:15.5px;gap:12px}
  .faq-a-inner{padding:0 18px 18px 16px;font-size:14.5px}
  .notice{grid-template-columns:1fr;padding:18px 20px;gap:12px}
  .cta-section{padding:0 0 64px}
  .cta-block{padding:36px 24px;border-radius:18px}
  .cta-block::after{display:none}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px}
  .mobile-bar{display:block}
  body{padding-bottom:76px}
}
@media (max-width:559px){
  .container{padding:0 20px}
  .page-hero h1{font-size:27px}
  .section-head h2{font-size:22px}
  .media-note{padding:10px 14px}
  .media-note .big{font-size:22px}
  .step{grid-template-columns:40px 1fr;gap:12px}
  .step-num{width:40px;height:40px;font-size:15px}
  .steps::before{left:20px}
  .step-card h3{font-size:16.5px}
  .chip{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}