/* roulang page: index */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF9E2C;
  --brand-3:#7B4DFF;
  --purple:#5B2EFF;
  --purple-2:#8B5CF6;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF9E2C 42%,#7B4DFF 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,106,43,.12) 0%,rgba(123,77,255,.12) 100%);
  --title:#14121F;
  --text:#3A3745;
  --text-2:#6B6779;
  --line:#ECE9F6;
  --bg:#FFFFFF;
  --bg-purple:#F7F5FF;
  --bg-warm:#FFF6EE;
  --dark:#14121F;
  --ok:#12B886;
  --muted:#B9B4C7;
  --r-xl:28px;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(20,18,31,.06);
  --sh-2:0 10px 30px rgba(20,18,31,.09);
  --sh-3:0 18px 48px rgba(91,46,255,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --pad-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
h1,h2,h3,h4{color:var(--title);letter-spacing:-.02em;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--purple);outline-offset:2px;border-radius:10px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--pad-section) 0;}
.section--purple{background:var(--bg-purple);}
.section--warm{background:var(--bg-warm);}
.section--tight{padding-top:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--sh-3);transform:translateY(-2px);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:#fff;color:var(--title);border:1px solid var(--line);}
.btn-ghost:hover{border-color:#D9CFFF;background:var(--bg-purple);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-light{background:#fff;color:var(--title);box-shadow:var(--sh-2);}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-light:active{transform:scale(.98);}
.btn-line-light{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.7);backdrop-filter:blur(6px);}
.btn-line-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.btn-line-light:active{transform:scale(.98);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.7;
  background:rgba(91,46,255,.09);color:var(--purple);
}
.badge-pill--grad{background:var(--grad);color:#fff;}
.badge-pill--warm{background:rgba(255,106,43,.12);color:#D9531F;}
.badge-pill--ok{background:rgba(18,184,134,.12);color:#0E9169;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:16px;
  box-shadow:0 6px 16px rgba(123,77,255,.28);
}
.brand-text{font-size:18px;font-weight:800;color:var(--title);letter-spacing:-.03em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;padding:9px 16px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--text);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:4px;border-radius:4px;
  background:rgba(123,77,255,.35);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover{background:var(--bg-purple);color:var(--title);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:var(--grad-soft);color:var(--title);font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  color:var(--text);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.icon-btn:hover{background:var(--bg-purple);color:var(--purple);border-color:var(--line);}
.hamburger{display:none;}
.search-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:16px 0 20px;
}
.search-panel.is-open{display:block;}
.search-form{display:flex;gap:12px;align-items:center;}
.search-form input{
  flex:1;height:48px;padding:0 18px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--title);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:var(--text-2);}
.search-form input:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px rgba(91,46,255,.14);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,31,.45);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;
  background:#fff;z-index:90;transform:translateX(100%);
  transition:transform .34s var(--ease);
  display:flex;flex-direction:column;padding:24px 22px;overflow-y:auto;
  box-shadow:-20px 0 50px rgba(20,18,31,.2);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:var(--bg-purple);color:var(--title);}
.drawer-nav a.is-active{background:var(--grad-soft);color:var(--title);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:12px;color:var(--text-2);line-height:1.7;}
body.no-scroll{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:132px 0 128px;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(255,106,43,.88) 0%,rgba(255,158,44,.58) 34%,rgba(123,77,255,.78) 72%,rgba(20,18,31,.9) 100%);
}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:160px;background:linear-gradient(180deg,rgba(20,18,31,0) 0%,rgba(20,18,31,.55) 100%);}
.hero .container{position:relative;z-index:3;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.hero-copy{max-width:640px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.38);color:#fff;
  backdrop-filter:blur(6px);margin-bottom:22px;
}
.hero h1{
  color:#fff;font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;
  letter-spacing:-.03em;margin-bottom:20px;
  text-shadow:0 6px 26px rgba(20,18,31,.32);
}
.hero-sub{font-size:clamp(16px,1.35vw,19px);line-height:1.75;color:rgba(255,255,255,.92);margin-bottom:34px;max-width:560px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.24);}
.hero-meta-item{font-size:13px;color:rgba(255,255,255,.82);display:flex;align-items:center;gap:8px;}
.hero-meta-item i{color:#FFD9A8;}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;}
.hero-visual::before{
  content:"";position:absolute;width:78%;height:78%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,32,.42) 0%,rgba(123,77,255,0) 70%);
  filter:blur(8px);
}
.hero-visual img{
  position:relative;width:100%;max-width:420px;border-radius:var(--r-lg);
  transform:rotate(-6deg);
  border:1px solid rgba(255,255,255,.34);
  box-shadow:0 32px 70px rgba(20,18,31,.5);
}
.hero-visual-card{
  position:absolute;right:2%;bottom:-6%;
  background:rgba(255,255,255,.95);color:var(--title);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-3);
  transform:rotate(-6deg);z-index:4;
}
.hero-visual-card strong{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--title);}
.hero-visual-card span{font-size:12px;color:var(--text-2);}

/* ---------- 数据徽章条 ---------- */
.stat-bar{position:relative;z-index:5;margin-top:-44px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat-card{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-2);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.stat-icon{
  width:44px;height:44px;border-radius:14px;flex-shrink:0;
  background:var(--grad);color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 8px 18px rgba(123,77,255,.24);
}
.stat-num{font-size:28px;font-weight:800;line-height:1.1;color:var(--title);font-variant-numeric:tabular-nums;}
.stat-label{font-size:12.5px;color:var(--text-2);line-height:1.5;}

/* ---------- 通用板块头 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--purple);margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:24px;height:3px;border-radius:3px;background:var(--grad);}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;}
.section-head p{color:var(--text-2);font-size:15px;margin-top:12px;max-width:660px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  font-size:14.5px;font-weight:700;color:var(--purple);
  padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  transition:all .22s var(--ease);
}
.link-more:hover{background:var(--bg-purple);border-color:#D9CFFF;transform:translateY(-2px);}

/* ---------- 功能卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.35);}
.feature-icon{
  width:48px;height:48px;border-radius:16px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--purple);font-size:20px;margin-bottom:18px;
}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ---------- 最新信息列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.35);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-purple);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{
  font-size:17px;font-weight:700;line-height:1.5;color:var(--title);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-2);
}
.post-more{color:var(--purple);font-weight:700;}
.post-card:hover .post-more{text-decoration:underline;}
.empty-state{
  grid-column:1 / -1;
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:#fff;border:1px dashed #D9CFFF;border-radius:var(--r-lg);
  padding:36px 24px;text-align:center;
}
.empty-state i{font-size:26px;color:var(--purple);}
.empty-state p{font-size:15px;color:var(--text-2);}
.empty-state a{color:var(--purple);font-weight:700;}

/* ---------- 权益对比 ---------- */
.benefit-wrap{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;
  border:1px solid var(--line);
}
table.benefit{width:100%;border-collapse:collapse;font-size:15px;}
table.benefit th,table.benefit td{
  padding:20px 22px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;
}
table.benefit thead th{
  font-size:15px;font-weight:800;color:var(--title);background:#fff;
}
table.benefit tbody td:first-child{color:var(--title);font-weight:600;}
table.benefit tbody tr:last-child td{border-bottom:0;}
table.benefit tbody tr:hover{background:var(--bg-purple);}
.col-member{background:var(--bg-purple);position:relative;}
thead .col-member{box-shadow:inset 0 2px 0 0 var(--brand-3),inset 2px 0 0 0 rgba(123,77,255,.4),inset -2px 0 0 0 rgba(123,77,255,.4);}
tbody .col-member{border-left:2px solid rgba(123,77,255,.18);border-right:2px solid rgba(123,77,255,.18);}
.benefit-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.check{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--grad);color:#fff;font-size:11px;}
.dash{display:inline-block;width:18px;height:2px;border-radius:2px;background:var(--muted);vertical-align:middle;}
.benefit-cards{display:none;grid-template-columns:1fr;gap:20px;}
.benefit-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
}
.benefit-card.is-recommend{border:2px solid transparent;background-image:linear-gradient(#fff,#fff),var(--grad);background-origin:border-box;background-clip:padding-box,border-box;box-shadow:var(--sh-2);}
.benefit-card h3{font-size:19px;margin-bottom:6px;}
.benefit-card .price-line{font-size:13px;color:var(--text-2);margin-bottom:16px;}
.benefit-card ul{display:flex;flex-direction:column;gap:10px;font-size:14.5px;}
.benefit-card li{display:flex;gap:10px;align-items:flex-start;color:var(--text);}
.benefit-card li i{color:var(--ok);margin-top:6px;font-size:13px;flex-shrink:0;}
.benefit-card li.is-off{color:var(--text-2);}
.benefit-card li.is-off i{color:var(--muted);}

/* ---------- 等级亮点 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.level-card{
  position:relative;background:#fff;border-radius:var(--r-lg);padding:30px 26px 26px;
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.level-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--grad);}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.level-card h3{font-size:20px;font-weight:700;margin:14px 0 6px;}
.level-threshold{font-size:13px;color:var(--text-2);margin-bottom:20px;}
.level-threshold strong{color:var(--title);font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;margin-right:6px;}
.level-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.level-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text);}
.level-list li i{color:var(--purple);font-size:13px;margin-top:6px;flex-shrink:0;}

/* ---------- 专属内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.preview-card{
  position:relative;display:block;aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.preview-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.preview-card:hover img{transform:scale(1.05);}
.preview-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,31,.08) 26%,rgba(20,18,31,.88) 100%);
  transition:opacity .3s var(--ease);
}
.preview-card:hover::after{opacity:.86;}
.lock-badge{
  position:absolute;top:14px;right:14px;z-index:2;
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,18,31,.6);color:var(--muted);backdrop-filter:blur(6px);
}
.lock-badge.is-open{background:var(--grad);color:#fff;}
.preview-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px;color:#fff;}
.preview-body h3{color:#fff;font-size:16.5px;font-weight:700;margin-bottom:6px;line-height:1.45;}
.preview-body p{font-size:13px;color:rgba(255,255,255,.8);line-height:1.7;}
.preview-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 22px;box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-item[open]{box-shadow:var(--sh-2);border-color:rgba(123,77,255,.3);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--title);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--purple);font-size:13px;
  transition:transform .26s var(--ease),background .26s var(--ease),color .26s var(--ease);
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--grad);color:#fff;}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:56px;color:#fff;
  background:var(--grad);
  box-shadow:0 24px 60px rgba(91,46,255,.28);
}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.22;}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;}
.cta-card h2{color:#fff;font-size:clamp(24px,3.2vw,34px);line-height:1.28;margin-bottom:14px;}
.cta-card p{color:rgba(255,255,255,.92);font-size:15.5px;max-width:560px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.4);color:#fff;
  backdrop-filter:blur(6px);
}
.cta-actions{display:flex;flex-direction:column;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:16px;}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;}
.footer-keys span{
  font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.72);
}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.56);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px;}
}
@media (max-width:1023px){
  :root{--pad-section:72px;}
  .nav-main{display:none;}
  .hamburger{display:grid;}
  .header-actions .btn-ghost{display:none;}
  .hero{padding:104px 0 112px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{display:none;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .level-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .preview-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .benefit-wrap{display:none;}
  .benefit-cards{display:grid;}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--pad-section:56px;}
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:16px;}
  .header-actions .btn-primary{display:none;}
  .hero{padding:88px 0 96px;}
  .hero-btns{flex-direction:column;align-items:stretch;}
  .hero-btns .btn{width:100%;}
  .hero-meta{gap:14px;flex-direction:column;}
  .stat-bar{margin-top:-28px;}
  .stat-num{font-size:24px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .feature-grid,.post-grid,.level-grid,.preview-grid,.faq-grid,.benefit-cards{grid-template-columns:1fr;}
  .cta-card{padding:34px 24px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .stat-card{padding:14px;gap:10px;flex-direction:column;align-items:flex-start;}
  .stat-icon{width:38px;height:38px;font-size:15px;}
  .stat-num{font-size:22px;}
  .post-body{padding:16px 16px 18px;}
}

/* roulang page: article */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF9E2C;
  --brand-3:#7B4DFF;
  --violet:#5B2EFF;
  --violet-2:#8B5CF6;
  --ink:#14121F;
  --text:#3A3745;
  --muted:#6B6779;
  --line:#ECE9F6;
  --soft:#F7F5FF;
  --warm:#FFF6EE;
  --ok:#12B886;
  --lock:#B9B4C7;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF9E2C 42%,#7B4DFF 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,106,43,.14) 0%,rgba(123,77,255,.16) 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(20,18,31,.06);
  --sh-2:0 10px 30px rgba(20,18,31,.09);
  --sh-3:0 18px 48px rgba(91,46,255,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:#fff;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-weight:800}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-outline,.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--sh-3);transform:translateY(-2px)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-outline:hover{border-color:rgba(123,77,255,.55);background:var(--soft);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-light{background:rgba(255,255,255,.94);color:#14121F;box-shadow:var(--sh-2)}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:999px;border:1px solid rgba(255,255,255,.6);color:#fff;font-size:15px;font-weight:600;transition:.22s var(--ease)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-sm{padding:10px 18px;font-size:14px}
button:disabled{opacity:.5;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--soft);color:var(--violet);border:1px solid var(--line);
}
.badge-pill.grad{background:var(--grad);color:#fff;border-color:transparent}
.badge-pill.warm{background:var(--warm);color:#C2531A;border-color:rgba(255,106,43,.22)}
.badge-pill.dark{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.3)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 6px 18px rgba(255,106,43,.28);flex:none;
}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;padding:9px 16px;border-radius:999px;font-size:15px;color:var(--text);
  transition:color .22s var(--ease),background .22s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:4px;border-radius:4px;
  background:var(--grad);transform:scaleX(0);transform-origin:center;transition:transform .24s var(--ease);opacity:.75;
}
.nav-link:hover{color:var(--ink);background:var(--soft)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{background:var(--grad-soft);color:var(--ink);font-weight:700}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--text);transition:.22s var(--ease);
}
.icon-btn:hover{color:var(--violet);border-color:rgba(123,77,255,.5);background:var(--soft)}
.menu-btn{display:none}
.search-box{
  display:none;align-items:center;gap:8px;height:42px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--soft);min-width:220px;
}
.search-box.is-open{display:flex}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.search-box:focus-within{border-color:rgba(123,77,255,.6);box-shadow:0 0 0 3px rgba(123,77,255,.14)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,31,.45);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;background:#fff;z-index:95;
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:22px 20px;box-shadow:-12px 0 40px rgba(20,18,31,.16);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--text)}
.drawer-nav a.is-active{background:var(--grad-soft);color:var(--ink)}
.drawer-nav a:hover{background:var(--soft)}
.drawer-actions{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:44px 0 34px;background:linear-gradient(180deg,#F7F5FF 0%,#FFFFFF 100%);overflow:hidden}
.article-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:360px;height:360px;border-radius:50%;
  background:var(--grad);opacity:.10;filter:blur(10px);pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);flex-wrap:wrap;position:relative;z-index:1}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--violet)}
.breadcrumb .sep{color:#C9C4D8}
.breadcrumb .current{
  color:var(--ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-hero h1{
  position:relative;z-index:1;
  margin:18px 0 0;max-width:900px;
  font-size:clamp(28px,4.2vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{position:relative;z-index:1;display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;margin-top:22px;font-size:14px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--brand-3)}
.hero-divider{position:relative;z-index:1;height:1px;background:var(--line);margin-top:26px}

/* ---------- 正文 ---------- */
.article-main{padding:8px 0 0}
.article-wrap{max-width:760px;margin:0 auto;padding:48px 0 8px}
.article-body{font-size:16px;line-height:1.9;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 16px}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{margin:30px 0 12px;font-size:20px;line-height:1.45;font-weight:600;color:var(--ink)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 18px;padding:0;list-style:none}
.article-body li{position:relative;padding-left:24px;margin-bottom:10px;line-height:1.85}
.article-body ul>li::before{
  content:"";position:absolute;left:3px;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--grad);
}
.article-body ol{counter-reset:item}
.article-body ol>li{counter-increment:item;padding-left:36px}
.article-body ol>li::before{
  content:counter(item);position:absolute;left:0;top:.35em;
  width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
  background:var(--soft);border:1px solid var(--line);color:var(--violet);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}
.article-body img{border-radius:16px;margin:22px auto;box-shadow:var(--sh-2)}
.article-body figure{margin:22px 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--muted);text-align:center;margin-top:-10px;line-height:1.7}
.article-body blockquote{
  position:relative;margin:24px 0;padding:18px 24px 18px 26px;
  background:var(--warm);border-radius:0 16px 16px 0;color:var(--ink);
}
.article-body blockquote::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);border-radius:4px 0 0 4px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.article-body thead th{background:var(--soft);color:var(--ink);font-weight:700}
.article-body tbody tr:nth-child(even){background:#F7F5FF}
.article-body pre{
  background:#14121F;color:#F2F0FF;border-radius:12px;padding:18px 20px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:22px 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body :not(pre)>code{background:var(--soft);color:var(--violet);padding:2px 7px;border-radius:6px;font-size:.92em}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body a{color:var(--violet);border-bottom:1px solid rgba(91,46,255,.28)}
.article-body a:hover{border-bottom-color:var(--violet)}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 26px;border:1px dashed rgba(123,77,255,.4);
  border-radius:var(--r-lg);background:var(--soft);
}
.empty-state i{font-size:32px;color:var(--brand-3)}
.empty-state h2{margin:14px 0 8px;padding:0;font-size:22px;font-weight:700}
.empty-state h2::before{display:none}
.empty-state p{margin:0 auto 22px;max-width:520px;color:var(--muted);font-size:15px}

/* 标签与操作 */
.article-foot{margin-top:46px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tag-label{font-size:13px;color:var(--muted);font-weight:600;margin-right:2px}
.tag-pill{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13.5px;color:var(--text);
  transition:.22s var(--ease);
}
.tag-pill:hover{border-color:rgba(123,77,255,.5);background:var(--soft);color:var(--violet);transform:translateY(-2px)}
.article-ops{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* 上一篇 / 下一篇 */
.neighbor-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:44px}
.neighbor-card{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.neighbor-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.35)}
.neighbor-card .dir{font-size:12.5px;font-weight:700;color:var(--violet);letter-spacing:.04em}
.neighbor-card .ttl{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5}
.neighbor-card .sub{font-size:13.5px;color:var(--muted);line-height:1.7}
.neighbor-card .arrow{margin-top:4px;font-size:13px;color:var(--brand-3);font-weight:700}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section.soft{background:var(--soft)}
.section.tight{padding-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700}
.section-head p{margin:10px 0 0;color:var(--muted);font-size:15px;max-width:620px}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;color:var(--violet)}
.more-link:hover{gap:12px}
.more-link i{transition:.22s var(--ease)}

/* 内容卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.32)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-badge{position:absolute;left:12px;top:12px}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;line-height:1.55;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{margin:0;font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.post-foot .go{color:var(--brand-3);font-weight:700}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:28px;padding:56px;
  background:var(--grad);color:#fff;box-shadow:var(--sh-3);
}
.cta-card .cta-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.18;mix-blend-mode:overlay;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:38px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.3;max-width:520px}
.cta-inner p{margin:12px 0 0;color:rgba(255,255,255,.9);font-size:15.5px;max-width:560px}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:#14121F;color:#C8C5D6;padding:0 0 26px}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:58px 0 34px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.85;color:#9E99B4;max-width:360px}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-keys span{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);color:#C8C5D6}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#9E99B4;transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9E99B4;
}
.footer-bottom a{color:#C8C5D6}
.footer-bottom a:hover{color:#fff}
.to-top{display:inline-flex;align-items:center;gap:8px;font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .menu-btn{display:grid}
  .header-actions .btn-sm,.header-actions .desk-only{display:none}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:64px}
  .brand{font-size:16px}
  .brand-mark{width:34px;height:34px;font-size:15px}
  .search-box{display:none !important}
  .section{padding:56px 0}
  .article-hero{padding:30px 0 24px}
  .article-wrap{padding:32px 0 4px}
  .article-body{font-size:15px}
  .card-grid,.neighbor-grid{grid-template-columns:minmax(0,1fr)}
  .cta-card{padding:34px 22px;border-radius:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-light,.cta-actions .btn-ghost{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);padding:44px 0 26px}
  .breadcrumb .current{max-width:200px}
  .article-ops .btn-outline{width:100%}
}
@media (max-width:479px){
  .article-meta{gap:8px 14px;font-size:13px}
  .section-head{margin-bottom:24px}
}

/* roulang page: category1 */
:root{
  --orange:#FF6A2B;
  --amber:#FFB020;
  --purple:#5B2EFF;
  --violet:#8B5CF6;
  --brand-grad:linear-gradient(135deg,#FF6A2B 0%,#FF9E2C 42%,#7B4DFF 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,106,43,.14) 0%,rgba(123,77,255,.14) 100%);
  --ink:#14121F;
  --text:#3A3745;
  --muted:#6B6779;
  --line:#ECE9F6;
  --bg:#FFFFFF;
  --lilac:#F7F5FF;
  --warm:#FFF6EE;
  --dark:#14121F;
  --success:#12B886;
  --locked:#B9B4C7;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 2px 8px rgba(20,18,31,.06);
  --sh2:0 10px 30px rgba(20,18,31,.09);
  --sh3:0 18px 48px rgba(91,46,255,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-pc:96px;
  --sec-tab:72px;
  --sec-mob:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.25}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(24px,3.2vw,34px);font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.4}
h4{font-size:17px;font-weight:600}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
strong{color:var(--ink);font-weight:700}
:focus-visible{outline:2px solid var(--purple);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec-pc) 0}
.section--lilac{background:var(--lilac)}
.section--warm{background:var(--warm)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--purple);background:rgba(91,46,255,.08);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.section-head p{margin-top:14px;color:var(--muted)}
.grad-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.tabular{font-variant-numeric:tabular-nums;font-weight:800}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--sh2)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--sh3)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:var(--sh1)}
.btn-ghost:hover{border-color:rgba(91,46,255,.4);color:var(--purple);box-shadow:var(--sh2)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{box-shadow:0 18px 44px rgba(0,0,0,.22);transform:translateY(-2px)}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn-outline-white:hover{background:rgba(255,255,255,.14)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .28s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh2)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--brand-grad);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:var(--sh1)}
.brand-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.2px}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{position:relative;padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text);transition:background-color .22s var(--ease),color .22s var(--ease)}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;border-radius:999px;background:var(--violet);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);opacity:.7}
.nav-link:hover{color:var(--purple);background:rgba(91,46,255,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{background:linear-gradient(135deg,rgba(255,106,43,.14) 0%,rgba(123,77,255,.16) 100%);color:var(--ink)}
.nav-link.is-active::after{transform:scaleX(1);opacity:1}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text);background:#fff;transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.icon-btn:hover{color:var(--purple);border-color:rgba(91,46,255,.4);box-shadow:var(--sh1)}
.hamburger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.search-bar{border-top:1px solid var(--line);background:#fff}
.search-bar[hidden]{display:none}
.search-form{display:flex;align-items:center;gap:12px;padding:14px 0}
.search-form input{flex:1;min-width:0;padding:12px 18px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:15px;color:var(--ink);background:#fff}
.search-form input::placeholder{color:var(--muted)}
.search-form input:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px rgba(91,46,255,.14)}
.drawer-mask{position:fixed;inset:0;background:rgba(20,18,31,.45);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;background:#fff;z-index:80;padding:22px 20px;overflow-y:auto;transform:translateX(105%);transition:transform .32s var(--ease);display:flex;flex-direction:column;gap:18px}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-sm);font-weight:600;color:var(--text)}
.drawer-nav a:hover{background:var(--lilac);color:var(--purple)}
.drawer-nav a.is-active{background:linear-gradient(135deg,rgba(255,106,43,.12) 0%,rgba(123,77,255,.14) 100%);color:var(--ink)}
.drawer-foot{margin-top:auto;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px}
.breadcrumb a:hover{color:var(--purple)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--locked)}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- 分类页 Hero ---------- */
.page-hero{position:relative;background:var(--lilac);padding:64px 0 96px;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad)}
.page-hero::after{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-180px;background:var(--brand-grad);opacity:.10;border-radius:50%;filter:blur(6px);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-copy{max-width:620px}
.hero-copy .lead{font-size:18px;color:var(--muted);margin-top:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;background:#fff;color:var(--text);border:1px solid var(--line)}
.tag i{color:var(--purple)}
.tag--grad{background:var(--brand-grad);color:#fff;border-color:transparent}
.tag--grad i{color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-visual{position:relative}
.hero-shot{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh3);transform:rotate(-3deg);border:6px solid #fff}
.hero-shot img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-float{position:absolute;left:-16px;bottom:-22px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh2);padding:14px 18px;display:flex;align-items:center;gap:12px;max-width:250px}
.hero-float .dot{width:38px;height:38px;border-radius:12px;background:var(--brand-grad);display:flex;align-items:center;justify-content:center;color:#fff}
.hero-float b{display:block;font-size:15px;color:var(--ink)}
.hero-float span{font-size:12px;color:var(--muted)}

/* ---------- 数据徽章行 ---------- */
.stat-wrap{margin-top:-52px;position:relative;z-index:5}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh2);padding:18px 20px;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.stat-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;color:var(--purple);font-size:17px;flex-shrink:0}
.stat-num{font-size:28px;font-weight:800;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-label{font-size:12px;color:var(--muted);letter-spacing:.2px}

/* ---------- 锚点胶囊条 ---------- */
.anchor-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh1);margin-top:44px}
.anchor-bar span.label{font-size:13px;font-weight:700;color:var(--muted);padding-left:4px}
.anchor-bar a{padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text);background:var(--lilac);transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease)}
.anchor-bar a:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px)}

/* ---------- 图文说明卡 ---------- */
.guide-list{display:flex;flex-direction:column;gap:28px}
.guide-card{display:grid;grid-template-columns:4fr 6fr;gap:32px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:24px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(91,46,255,.28)}
.guide-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md)}
.guide-body h3{margin-bottom:10px}
.guide-body .step-no{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--purple);background:rgba(91,46,255,.08);border-radius:999px;padding:5px 13px;margin-bottom:12px}
.guide-body p{color:var(--muted);font-size:15px}
.guide-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.guide-points span{font-size:13px;color:var(--text);background:var(--lilac);border-radius:999px;padding:6px 13px}
.guide-points span i{color:var(--success);margin-right:6px}

/* ---------- 三段式列表 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:28px}
.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.panel-head .icon{width:42px;height:42px;border-radius:12px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px}
.check-list li{display:flex;align-items:flex-start;gap:12px;padding:14px 12px;border-radius:var(--r-sm);border-top:1px solid var(--line);transition:background .22s var(--ease),padding-left .22s var(--ease)}
.check-list li:first-child{border-top:0}
.check-list li:hover{background:var(--lilac);padding-left:18px}
.check-list .mark{width:24px;height:24px;border-radius:50%;background:var(--brand-grad-soft);color:var(--purple);display:flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0;margin-top:4px}
.check-list .txt{flex:1;font-size:15px}
.check-list .txt b{display:block;color:var(--ink);font-size:15px;margin-bottom:2px}
.check-list .txt span{color:var(--muted);font-size:13.5px}
.check-list .arrow{color:var(--locked);font-size:13px;margin-top:5px;transition:transform .22s var(--ease),color .22s var(--ease)}
.check-list li:hover .arrow{color:var(--purple);transform:translateX(3px)}

/* ---------- 步骤条 ---------- */
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:26px 22px;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.step-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:999px;background:var(--brand-grad);opacity:.85}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.step-card .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand-grad);color:#fff;font-weight:800;font-size:15px;margin-bottom:14px}
.step-card h3{font-size:17px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:4px 20px;box-shadow:var(--sh1);transition:box-shadow .22s var(--ease),border-color .22s var(--ease)}
.faq-item[open]{box-shadow:var(--sh2);border-color:rgba(91,46,255,.28)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;cursor:pointer;font-size:17px;font-weight:600;color:var(--ink);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--lilac);color:var(--purple);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease)}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--brand-grad);color:#fff}
.faq-item .answer{padding:0 0 18px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-card{position:relative;border-radius:28px;overflow:hidden;padding:56px;background:var(--brand-grad);color:#fff;box-shadow:var(--sh3);display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center}
.cta-card .bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.18;mix-blend-mode:overlay}
.cta-inner{position:relative;z-index:2}
.cta-card h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-card p{color:rgba(255,255,255,.9);margin-top:14px;font-size:16px;max-width:560px}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-tags span{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);font-size:13px;font-weight:600;color:#fff}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--dark);color:#C9C5DA;margin-top:0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;color:#A7A2BB;line-height:1.8;max-width:340px}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-keys span{font-size:12px;color:#D8D4E8;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:5px 12px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A7A2BB}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;font-size:13px;color:#8E89A3}
.footer-bottom a{color:#C9C5DA}
.footer-bottom a:hover{color:#fff}
.to-top{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.16);color:#fff}
.to-top:hover{background:rgba(255,255,255,.1)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  :root{--sec-pc:72px}
  .section{padding:var(--sec-tab) 0}
  .nav-main{display:none}
  .hamburger{display:flex}
  .header-actions .btn-ghost{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-shot{transform:none;max-width:560px}
  .hero-float{left:auto;right:12px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .guide-card{grid-template-columns:1fr;gap:20px}
  .check-grid{grid-template-columns:1fr}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media (max-width:767px){
  .section{padding:var(--sec-mob) 0}
  .container{padding:0 16px}
  .header-actions .btn-primary{display:none}
  .page-hero{padding:44px 0 88px}
  .hero-copy .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;margin-top:16px;max-width:none}
  .anchor-bar{border-radius:var(--r-md);padding:12px 14px}
  .step-row{grid-template-columns:1fr}
  .panel{padding:22px}
  .cta-card{padding:30px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
}
@media (max-width:520px){
  h1{font-size:clamp(26px,7.4vw,32px)}
  .brand-text{font-size:16px}
  .stat-row{grid-template-columns:1fr 1fr;gap:14px}
  .stat-card{padding:14px;gap:10px}
  .stat-num{font-size:22px}
  .stat-icon{width:38px;height:38px;font-size:15px}
  .guide-card{padding:18px}
  body{font-size:15px;line-height:1.85}
  .faq-item summary{font-size:16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF9E2C;
  --brand-3:#7B4DFF;
  --brand-4:#5B2EFF;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF9E2C 42%,#7B4DFF 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,106,43,.14) 0%,rgba(123,77,255,.16) 100%);
  --ink:#14121F;
  --text:#3A3745;
  --muted:#6B6779;
  --line:#ECE9F6;
  --bg:#FFFFFF;
  --bg-purple:#F7F5FF;
  --bg-warm:#FFF6EE;
  --dark:#14121F;
  --ok:#12B886;
  --off:#B9B4C7;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(20,18,31,.06);
  --sh-2:0 10px 30px rgba(20,18,31,.09);
  --sh-3:0 18px 48px rgba(91,46,255,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
strong{font-weight:700}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:15px;
  box-shadow:0 6px 16px rgba(255,106,43,.28);
}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:10px}
.nav-link{
  position:relative;padding:9px 16px;border-radius:999px;font-size:15px;color:var(--text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:3px;height:4px;border-radius:999px;
  background:linear-gradient(90deg,rgba(255,106,43,.6),rgba(123,77,255,.6));
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{background:var(--grad-soft);color:var(--ink);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text);background:#fff;
  transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.icon-btn:hover{border-color:rgba(123,77,255,.45);color:var(--brand-4);box-shadow:var(--sh-1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  place-items:center;color:var(--ink);background:#fff;font-size:17px;
}
.header-search{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0}
.header-search.is-open{display:block}
.search-box{
  display:flex;align-items:center;gap:12px;background:var(--bg-purple);
  border:1px solid var(--line);border-radius:999px;padding:8px 8px 8px 20px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--brand-3);box-shadow:0 0 0 3px rgba(123,77,255,.14)}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{flex:1;min-width:0;border:0;background:transparent;font-size:15px;color:var(--ink);outline:none}
.search-box input::placeholder{color:var(--muted)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),filter .2s var(--ease),
             background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--brand-4);outline-offset:2px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--sh-3);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:rgba(123,77,255,.45);color:var(--brand-4)}
.btn-white{background:#fff;color:var(--ink);box-shadow:var(--sh-2)}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-outline-white:hover{background:rgba(255,255,255,.14)}
.btn-block{width:100%}
.btn-sm{padding:9px 18px;font-size:14px}

/* ===== 页面小首屏 ===== */
.page-hero{position:relative;background:var(--bg-purple);padding:40px 0 64px;overflow:hidden}
.page-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(123,77,255,.16),transparent 70%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-4)}
.breadcrumb .current{color:var(--ink)}
.page-hero h1{font-size:clamp(30px,5vw,50px);line-height:1.15;font-weight:800;margin-bottom:18px}
.page-hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:720px;font-size:17px;color:var(--text);margin-bottom:0}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:32px}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.3}
.stat span{font-size:13px;color:var(--muted)}

/* ===== 通用板块 ===== */
.sec{padding:96px 0}
.sec-purple{background:var(--bg-purple)}
.sec-warm{background:var(--bg-warm)}
.sec-head{max-width:700px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.04em;color:var(--brand-4);background:rgba(123,77,255,.1);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.sec-title{font-size:clamp(24px,3.2vw,34px);line-height:1.25;margin-bottom:14px}
.sec-desc{color:var(--muted);font-size:16px;margin:0}

/* ===== 权益卡片网格 ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.benefit-card{
  display:flex;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.benefit-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.35)}
.benefit-card img{
  width:132px;height:132px;flex:none;object-fit:cover;border-radius:var(--r-md);
}
.benefit-body{min-width:0}
.benefit-body h3{font-size:19px;margin-bottom:8px}
.benefit-body p{font-size:14.5px;color:var(--muted);margin-bottom:12px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-4);
  transition:gap .2s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{gap:12px;color:var(--brand-1)}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:999px;background:rgba(123,77,255,.1);color:var(--brand-4);
}
.tag-warm{background:rgba(255,106,43,.12);color:#D2521B}
.tag-ok{background:rgba(18,184,134,.12);color:#0E8F69}

/* ===== 等级阶梯 ===== */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
.tier-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px 24px;box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tier-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--grad);
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,77,255,.35)}
.tier-card.is-recommended{border-color:rgba(123,77,255,.4);box-shadow:var(--sh-3)}
.tier-flag{
  position:absolute;top:18px;right:18px;font-size:12px;font-weight:700;color:#fff;
  background:var(--grad);padding:4px 12px;border-radius:999px;
}
.tier-card h3{font-size:20px;margin-bottom:12px}
.tier-num{
  font-size:32px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;
  line-height:1.2;margin:0 0 18px;
}
.tier-num span{font-size:13px;font-weight:500;color:var(--muted);margin-left:6px}
.tier-list{margin-bottom:24px;flex:1}
.tier-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text);
  padding:8px 0;border-bottom:1px dashed var(--line);
}
.tier-list li:last-child{border-bottom:0}
.tier-list i{color:var(--brand-3);font-size:13px;margin-top:6px}
.tier-list .fa-minus{color:var(--off)}

/* ===== 对比表 ===== */
.table-scroll{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
table.benefit-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px}
.benefit-table th,.benefit-table td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
.benefit-table thead th{
  font-size:14px;font-weight:600;color:var(--muted);background:#FBFAFF;white-space:nowrap;
}
.benefit-table th:not(:first-child),.benefit-table td:not(:first-child){text-align:center;width:20%}
.benefit-table tbody tr:last-child td{border-bottom:0}
.benefit-table tbody tr{transition:background .2s var(--ease)}
.benefit-table tbody tr:hover{background:var(--bg-purple)}
.benefit-table td:first-child{color:var(--ink);font-weight:600}
.yes{
  display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;
  background:var(--grad);color:#fff;font-size:11px;vertical-align:middle;
}
.no{color:var(--off);font-weight:700}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--brand-4);font-size:14px;transition:transform .25s var(--ease);margin-top:6px}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item[open] summary{background:var(--grad-soft)}
.faq-body{padding:16px 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);border-top:1px solid var(--line)}

/* ===== CTA ===== */
.cta-card{
  position:relative;border-radius:28px;background:var(--grad);color:#fff;
  padding:56px;overflow:hidden;display:flex;gap:36px;align-items:center;justify-content:space-between;
  box-shadow:var(--sh-3);
}
.cta-card::after{
  content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover;
  opacity:.15;mix-blend-mode:overlay;pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:620px}
.cta-text h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.cta-text p{color:rgba(255,255,255,.92);margin:0}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-tags span{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);
}
.cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;min-width:220px}

/* ===== 页脚 ===== */
.site-footer{position:relative;background:var(--dark);color:#C9C5D6;padding:72px 0 28px;margin-top:0}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#A9A4BB;margin-bottom:16px}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{
  font-size:12.5px;padding:4px 12px;border-radius:999px;color:#C9C5D6;
  border:1px solid rgba(255,255,255,.16);
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9A4BB;transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8E8AA3;
}
.footer-bottom a{color:#C9C5D6}
.footer-bottom a:hover{color:#fff}
.to-top{display:inline-flex;align-items:center;gap:8px;color:#fff}

/* ===== 移动端抽屉 ===== */
.drawer{
  position:fixed;top:0;right:0;width:290px;max-width:86vw;height:100%;
  background:#fff;z-index:90;transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:20px;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,31,.45);z-index:89;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--text)}
.drawer-nav a:hover{background:var(--bg-purple)}
.drawer-nav a.is-active{background:var(--grad-soft);color:var(--ink);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:10px}
.drawer-foot{margin:auto 0 0;font-size:12.5px;color:var(--muted)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .sec{padding:88px 0}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .header-actions{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:66px}
  .grid-2{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{flex-direction:column;align-items:flex-start;padding:44px}
  .cta-actions{width:100%;min-width:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .sec{padding:56px 0}
  .page-hero{padding:28px 0 48px}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{padding:32px 24px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .benefit-card{flex-direction:column}
  .benefit-card img{width:100%;height:180px}
  .stat b{font-size:22px}
  .benefit-table th,.benefit-table td{padding:14px 16px}
}