/* roulang page: index */
:root{
  --bg-dark:#0B0F14;
  --dark-card:#141A22;
  --dark-line:rgba(255,255,255,.08);
  --dark-t2:#9AA6B4;
  --canvas:#F5F7F9;
  --card:#FFFFFF;
  --line:#E6E9EE;
  --t2:#5B6472;
  --t1:#0F1620;
  --brand:#1FD68A;
  --brand-d:#12B872;
  --brand-soft:#E6FBF1;
  --brand-ink:#06251A;
  --orange:#FF7A2F;
  --purple:#7C6CFF;
  --warn:#FFB020;
  --err:#E5484D;
  --r-cta:28px;
  --r-card:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-input:12px;
  --sh1:0 1px 2px rgba(15,22,32,.04),0 8px 24px rgba(15,22,32,.06);
  --sh2:0 16px 40px rgba(15,22,32,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:0;}
h2{font-size:32px;line-height:1.3;font-weight:700;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
p{font-size:16px;line-height:1.85;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}

/* ---------- 通用容器与板块 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.section{padding:96px 0;position:relative;}
.section-tight{padding:72px 0;}
.section-dark{background:var(--bg-dark);color:#fff;}
.section-dark p{color:var(--dark-t2);}
.section-dark h2,.section-dark h3{color:#fff;}
.light-rule{height:1px;background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.45),rgba(31,214,138,0));border:0;margin:0;}
.sec-head{margin-bottom:44px;}
.sec-title{position:relative;padding-left:18px;}
.sec-title::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--brand);}
.sec-desc{margin:14px 0 0 18px;color:var(--t2);font-size:16px;max-width:720px;}
.section-dark .sec-desc{color:var(--dark-t2);}
.sec-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:999px;
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
  cursor:pointer;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-d);border-color:var(--brand-d);color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,214,138,.26);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost:hover{border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-outline{background:#fff;border-color:#D8DDE4;color:var(--t1);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-soft);transform:translateY(-2px);}
.btn-sm{height:44px;padding:0 22px;font-size:15px;}
.btn-block{width:100%;}
.textlink{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:15px;font-weight:600;}
.textlink .arrow{transition:transform .2s var(--ease);}
.textlink:hover{color:var(--brand-d);}
.textlink:hover .arrow{transform:translateX(3px);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:900;display:flex;justify-content:center;pointer-events:none;}
.nav-pill{
  pointer-events:auto;width:calc(100% - 48px);max-width:1140px;height:64px;
  display:flex;align-items:center;gap:20px;padding:0 12px 0 22px;
  border-radius:999px;background:rgba(11,15,20,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  transition:height .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled .nav-pill{height:56px;background:rgba(11,15,20,.90);border-color:rgba(255,255,255,.16);}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto;}
.brand-mark{position:relative;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--purple));flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;right:6px;top:6px;width:8px;height:8px;border-radius:3px;background:#0B0F14;}
.brand-text{display:flex;align-items:baseline;gap:5px;line-height:1.1;white-space:nowrap;}
.brand-text strong{font-size:16px;font-weight:800;color:#fff;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--dark-t2);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{position:relative;display:block;padding:9px 13px;font-size:15px;color:#C7CFD9;border-radius:999px;}
.nav-links a::after{content:"";position:absolute;left:13px;bottom:3px;width:12px;height:2px;border-radius:2px;background:var(--brand);transition:width .2s var(--ease);}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:calc(100% - 26px);}
.nav-links a.active{color:var(--brand);background:rgba(31,214,138,.12);}
.nav-links a.active::after{width:0;}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#fff;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#fff;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{display:none;}
@media (max-width:1023.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn{display:none;}
  .nav-drawer{
    display:block;position:fixed;left:0;right:0;top:0;z-index:880;
    background:var(--bg-dark);padding:96px 20px 28px;
    transform:translateY(-110%);transition:transform .32s var(--ease);
    box-shadow:0 24px 60px rgba(0,0,0,.5);
  }
  .nav-drawer.is-open{transform:translateY(0);}
  .nav-drawer a.drawer-link{display:flex;align-items:center;height:52px;padding:0 16px;border-radius:12px;color:#C7CFD9;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06);}
  .nav-drawer a.drawer-link.active{color:var(--brand);background:rgba(31,214,138,.10);}
  .nav-drawer .drawer-cta{margin-top:20px;}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg-dark);color:#fff;padding:168px 0 104px;min-height:640px;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,15,20,.86),rgba(11,15,20,.94));}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.45),rgba(31,214,138,0));}
.hero .grid-container{position:relative;z-index:2;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(31,214,138,.12);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:22px;}
.hero h1{color:#fff;max-width:640px;}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.75;color:#C7CFD9;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 38px;margin-top:40px;}
.hero-stats li{display:flex;align-items:baseline;gap:9px;}
.hero-stats strong{font-size:30px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;}
.hero-stats span{font-size:14px;color:var(--dark-t2);}
.hero-card{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);border-radius:20px;padding:30px 28px;margin-top:34px;}
.hero-card .corner-badge{position:absolute;top:-13px;right:22px;height:26px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--orange);color:#fff;font-size:12.5px;font-weight:600;}
.hero-card h3{font-size:18px;color:#fff;}
.hero-card .card-note{margin-top:6px;font-size:13.5px;color:var(--dark-t2);line-height:1.7;}
.benefit-lines{margin-top:20px;border-top:1px solid var(--dark-line);}
.benefit-lines li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--dark-line);font-size:15px;color:#E3E8EE;}
.benefit-lines li span:last-child{font-size:13px;color:var(--brand);font-variant-numeric:tabular-nums;}
.progress-wrap{margin-top:24px;}
.progress-head{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;color:var(--dark-t2);margin-bottom:10px;}
.progress-head b{color:#fff;font-size:15px;font-variant-numeric:tabular-nums;}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--purple));}

/* ---------- 三步条 ---------- */
.steps-wrap{position:relative;}
.steps-wrap::before{content:"";position:absolute;left:24px;right:24px;top:22px;border-top:1px dashed #D8DDE4;z-index:0;}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;z-index:1;}
.step-num{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#fff;border:2px solid var(--brand);color:var(--brand-ink);font-weight:800;font-variant-numeric:tabular-nums;font-size:16px;}
.step h3{margin-top:20px;font-size:19px;}
.step p{margin-top:10px;font-size:15px;color:var(--t2);line-height:1.75;max-width:320px;}

/* ---------- 权益对比表 ---------- */
.table-scroll{overflow-x:auto;padding-bottom:6px;}
.plan-table{width:100%;min-width:780px;border-collapse:separate;border-spacing:0;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;}
.plan-table th,.plan-table td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid #EDEFF3;vertical-align:middle;}
.plan-table thead th{font-size:14px;font-weight:600;color:var(--t2);background:var(--canvas);white-space:nowrap;}
.plan-table thead th:first-child{border-top-left-radius:var(--r-card);}
.plan-table thead th:last-child{border-top-right-radius:var(--r-card);}
.plan-table tbody tr:hover td{background:var(--canvas);}
.plan-table td.num{text-align:right;font-variant-numeric:tabular-nums;}
.plan-table .col-rec{background:#fff;border-left:2px solid var(--brand);border-right:2px solid var(--brand);}
.plan-table tbody tr:last-child .col-rec{border-bottom:2px solid var(--brand);border-bottom-left-radius:var(--r-card);border-bottom-right-radius:var(--r-card);}
.plan-table thead .col-rec{border-top:2px solid var(--brand);border-top-left-radius:var(--r-card);border-top-right-radius:var(--r-card);position:relative;background:#fff;color:var(--t1);}
.plan-table thead .col-rec::before{content:"推荐";position:absolute;top:-13px;left:50%;transform:translateX(-50%);height:26px;padding:0 12px;display:inline-flex;align-items:center;border-radius:999px;background:var(--orange);color:#fff;font-size:12.5px;font-weight:600;}
.tick{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand-d);align-items:center;justify-content:center;font-size:13px;font-weight:800;}
.dash{color:#C7CFD9;font-weight:700;}
.plan-cards{display:none;}

/* ---------- 等级卡（深色） ---------- */
.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.level-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-card);padding:28px 24px;position:relative;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.level-card:hover{transform:translateY(-4px);border-color:rgba(31,214,138,.35);}
.level-card.is-top{transform:translateY(-8px);box-shadow:0 0 12px rgba(124,108,255,.28);border-color:rgba(124,108,255,.45);}
.level-card.is-top:hover{transform:translateY(-12px);}
.crest{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--purple),var(--orange));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;}
.level-card h3{margin-top:20px;font-size:19px;color:#fff;}
.level-card .lv-note{margin-top:10px;font-size:14px;color:var(--dark-t2);line-height:1.7;min-height:48px;}
.level-card .progress{margin-top:18px;}
.level-card .lv-threshold{margin-top:12px;font-size:13px;color:var(--dark-t2);}
.level-card .lv-threshold b{color:var(--brand);font-variant-numeric:tabular-nums;}
.lamp-edge{position:absolute;left:20px;top:-1px;width:56px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),rgba(31,214,138,0));}

/* ---------- 内容卡（浅色） ---------- */
.card{background:var(--card);border:1px solid #EDEFF3;border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease);height:100%;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.card-media{position:relative;overflow:hidden;background:var(--brand-soft);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:rgba(31,214,138,.12);color:var(--brand-d);}
.tag.on-media{position:absolute;left:14px;top:14px;background:rgba(11,15,20,.72);color:#fff;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);}
.tag.tag-purple{background:rgba(124,108,255,.12);color:#5B4BE0;}
.tag.tag-orange{background:var(--orange);color:#fff;}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{margin-top:12px;font-size:15px;color:var(--t2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-foot time{font-size:13px;color:#8A94A3;}
.card-lg .card-body{padding:30px 32px;}
.card-lg .card-body h3{font-size:22px;}

/* ---------- CMS 列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.empty-state{grid-column:1/-1;min-height:220px;border:1px dashed #D8DDE4;border-radius:var(--r-card);background:var(--canvas);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px;text-align:center;}
.empty-state .empty-icon{width:48px;height:48px;border-radius:14px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand-d);font-size:22px;}
.empty-state p{font-size:16px;color:var(--t2);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:background .2s var(--ease),border-color .2s var(--ease);position:relative;}
.faq-item[open]{background:#FAFCFB;border-color:#DCEDE4;}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);}
.faq-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:17px;font-weight:600;line-height:1.5;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid #D8DDE4;color:var(--t2);display:flex;align-items:center;justify-content:center;font-size:16px;transition:transform .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);}
.faq-item[open] summary .plus{transform:rotate(45deg);color:var(--brand-d);border-color:var(--brand);}
.faq-item .faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--t2);}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--bg-dark);border-radius:var(--r-cta);padding:56px 48px;overflow:hidden;}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,rgba(31,214,138,.9),rgba(31,214,138,0));}
.cta-band h2{color:#fff;font-size:30px;}
.cta-band .cta-sub{margin-top:14px;color:var(--dark-t2);font-size:16px;max-width:520px;}
.cta-points{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px 28px;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#E3E8EE;}
.cta-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);}
.cta-form{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);border-radius:20px;padding:26px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--dark-t2);margin-bottom:8px;}
.field label .req{color:var(--brand);}
.field input{width:100%;height:52px;border-radius:var(--r-input);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;padding:0 16px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.field input::placeholder{color:#8A94A3;}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(31,214,138,.28);}
.form-note{margin-top:12px;font-size:12.5px;color:var(--dark-t2);text-align:center;}
.form-note a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark);color:var(--dark-t2);padding:72px 0 28px;position:relative;}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.4),rgba(31,214,138,0));}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;}
.footer-brand .brand-text em{color:var(--dark-t2);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:var(--dark-t2);max-width:320px;}
.footer-col h4{font-size:14px;color:var(--brand);margin-bottom:18px;font-weight:600;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--dark-t2);position:relative;padding-left:0;transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-col a::before{content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);width:2px;height:0;background:var(--brand);transition:height .2s var(--ease);}
.footer-col a:hover{color:#fff;padding-left:8px;}
.footer-col a:hover::before{height:14px;}
.footer-col p{font-size:14px;line-height:1.8;color:var(--dark-t2);}
.footer-bottom{margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:12.5px;color:#6B7684;}
.footer-bottom p{font-size:12.5px;color:#6B7684;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-container{padding-left:24px;padding-right:24px;}
}
@media (max-width:1023.98px){
  h1{font-size:36px;}
  h2{font-size:26px;}
  .section{padding:72px 0;}
  .hero{padding:140px 0 80px;min-height:560px;}
  .hero-card{margin-top:40px;}
  .level-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-cols{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:639.98px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .hero{padding:124px 0 64px;min-height:560px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:14px 24px;}
  .hero-stats strong{font-size:24px;}
  .hero-card{padding:24px 20px;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .steps-wrap::before{display:none;}
  .step{display:flex;gap:16px;align-items:flex-start;padding-bottom:20px;border-bottom:1px dashed #D8DDE4;}
  .step:last-child{border-bottom:0;padding-bottom:0;}
  .step h3{margin-top:6px;}
  .step p{margin-top:8px;}
  .table-scroll{display:none;}
  .plan-cards{display:grid;gap:18px;}
  .plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);padding:24px 20px;}
  .plan-card.is-rec{border:2px solid var(--brand);position:relative;}
  .plan-card.is-rec::before{content:"推荐";position:absolute;top:-13px;right:20px;height:26px;padding:0 12px;display:inline-flex;align-items:center;border-radius:999px;background:var(--orange);color:#fff;font-size:12.5px;font-weight:600;}
  .plan-card h3{font-size:19px;margin-bottom:6px;}
  .plan-card .plan-price{font-size:13.5px;color:var(--t2);}
  .plan-card details{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;}
  .plan-card summary{cursor:pointer;font-size:14.5px;font-weight:600;color:var(--brand-d);list-style:none;}
  .plan-card summary::-webkit-details-marker{display:none;}
  .plan-card ul{margin-top:12px;display:grid;gap:10px;}
  .plan-card li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--t2);}
  .level-grid{grid-template-columns:1fr;}
  .level-card.is-top{transform:none;}
  .news-grid{grid-template-columns:1fr;}
  .card-body{padding:20px;}
  .card-lg .card-body{padding:22px 20px;}
  .card-lg .card-body h3{font-size:19px;}
  .cta-band{padding:32px 20px;border-radius:0;}
  .footer-cols{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --ink:#0B0F14;
  --ink-card:#141A22;
  --line-dark:rgba(255,255,255,.08);
  --muted-dark:#9AA6B4;
  --canvas:#F5F7F9;
  --surface:#FFFFFF;
  --line:#E6E9EE;
  --muted:#5B6472;
  --text:#0F1620;
  --brand:#1FD68A;
  --brand-deep:#12B872;
  --brand-soft:#E6FBF1;
  --brand-ink:#06251A;
  --accent:#FF7A2F;
  --violet:#7C6CFF;
  --warn:#FFB020;
  --danger:#E5484D;
  --r-card:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(15,22,32,.04),0 8px 24px rgba(15,22,32,.06);
  --shadow-2:0 16px 40px rgba(15,22,32,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --pad-y:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  background:var(--canvas);
  color:var(--text);
  font-family:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 48px);max-width:1140px;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 22px;
  border-radius:999px;
  background:rgba(11,15,20,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  z-index:1000;
  transition:height .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-pill.is-scrolled{height:56px;background:rgba(11,15,20,.90);border-color:rgba(255,255,255,.16)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  box-shadow:0 0 10px rgba(31,214,138,.35);
}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1;white-space:nowrap}
.brand-text strong{color:#fff;font-size:17px;font-weight:800;letter-spacing:.5px}
.brand-text em{font-style:normal;color:#9AA6B4;font-size:12.5px;letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-links a{
  position:relative;display:block;padding:10px 14px;border-radius:999px;
  color:#C7CFD9;font-size:15px;line-height:1.2;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);background:rgba(31,214,138,.12)}
.nav-links a.active::after{transform:scaleX(0)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta-mobile{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:var(--brand-ink);height:52px;padding:0 28px}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(31,214,138,.28)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;height:52px;padding:0 28px}
.btn-ghost:hover{border-color:rgba(255,255,255,.6);transform:translateY(-2px)}
.btn-ghost-light{background:#fff;border-color:#D8DDE4;color:var(--text);height:52px;padding:0 28px}
.btn-ghost-light:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}
.btn-link{color:var(--brand-deep);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-link i{transition:transform .2s var(--ease)}
.btn-link:hover i{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--pad-y) 0}
.section-tight{padding:56px 0}
.sec-title{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:0}
.sec-title.bar{position:relative;padding-left:16px}
.sec-title.bar::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand);
}
.sec-lead{font-size:16px;color:var(--muted);margin-top:12px;max-width:640px;line-height:1.8}
.sec-head{margin-bottom:40px}
.sec-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:156px 0 72px;min-height:340px;
  background-image:linear-gradient(180deg,rgba(11,15,20,.86),rgba(11,15,20,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.45) 35%,rgba(124,108,255,.35) 70%,transparent);
}
.page-hero .grid-container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted-dark);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted-dark);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.current{color:#C7CFD9}
.page-hero h1{
  font-size:40px;font-weight:800;line-height:1.25;letter-spacing:0;max-width:760px;
}
.hero-sub{margin-top:16px;font-size:18px;color:#C7CFD9;line-height:1.7;max-width:660px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;line-height:1;font-weight:600;
  background:rgba(31,214,138,.12);color:var(--brand);
}
.chip-violet{background:rgba(124,108,255,.14);color:#B4AAFF}
.chip-outline{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#C7CFD9}
.hero-strip{
  position:absolute;right:-60px;top:80px;width:220px;height:220px;border-radius:32px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(135deg,rgba(31,214,138,.12),rgba(124,108,255,.08));
  transform:rotate(18deg);pointer-events:none;
}
.hero-strip::after{
  content:"";position:absolute;left:22px;top:22px;width:70px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--brand),transparent);
}

/* ---------- 时间线 ---------- */
.tl{position:relative;margin-top:36px;padding-left:40px}
.tl::before{content:"";position:absolute;left:13px;top:10px;bottom:12px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-40px;top:0;width:27px;height:27px;border-radius:50%;
  background:var(--brand);color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 4px var(--brand-soft);
}
.tl-item h3{font-size:19px;font-weight:600;line-height:1.4}
.tl-item p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.8;max-width:560px}
.tl-meta{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:12.5px;color:#8A94A3}

/* ---------- 入口卡片 ---------- */
.entry-list{display:flex;flex-direction:column;gap:16px;margin-top:36px}
.entry-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid #EDEFF3;border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card::before{
  content:"";position:absolute;left:22px;top:0;width:58px;height:3px;border-radius:0 0 6px 6px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,138,0));
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.entry-card.is-featured{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),var(--shadow-1)}
.entry-card h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.entry-card p{margin-top:10px;font-size:14.5px;line-height:1.7;color:var(--muted)}
.entry-icon{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-deep);font-size:15px;font-weight:800;
}
.entry-card .btn{margin-top:18px}
.tag-rec{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:11.5px;font-weight:700;
}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--brand-soft);border-radius:14px;padding:20px 24px;
  border:1px solid rgba(31,214,138,.22);
}
.notice-icon{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;margin-top:2px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--brand-ink);font-weight:800;font-size:14px;
}
.notice p{font-size:15px;line-height:1.75;color:#123A2A}
.notice p strong{font-weight:700}

/* ---------- 图文区块 ---------- */
.figure-img{
  border-radius:var(--r-img);overflow:hidden;position:relative;
  aspect-ratio:4/3;background:rgba(31,214,138,.06);
}
.figure-img img{width:100%;height:100%;object-fit:cover}
.figure-img::after{
  content:"";position:absolute;left:0;bottom:0;width:120px;height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
}
.check-list{margin-top:28px;display:flex;flex-direction:column;gap:20px}
.check-item{display:flex;gap:14px}
.check-mark{
  width:24px;height:24px;border-radius:50%;flex-shrink:0;margin-top:4px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--brand-ink);font-size:13px;font-weight:800;
}
.check-item h3{font-size:17px;font-weight:600;line-height:1.45}
.check-item p{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 数据条 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.stat-cell{background:#fff;padding:24px 22px}
.stat-cell b{display:block;font-size:34px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--text)}
.stat-cell b i{font-style:normal;font-size:16px;font-weight:700;color:var(--brand-deep);margin-left:2px}
.stat-cell span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--ink);
  padding:56px 48px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.5) 30%,rgba(124,108,255,.35) 75%,transparent);
}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.35;max-width:620px}
.cta-band .cta-sub{margin-top:14px;color:#C7CFD9;font-size:16px;max-width:560px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#C7CFD9}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex-shrink:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
.cta-note{margin-top:18px;font-size:12.5px;color:#6B7684}

/* ---------- 返回导航条 ---------- */
.back-bar{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:26px 0;
}
.back-bar .inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.back-bar p{font-size:14.5px;color:var(--muted)}
.back-bar .btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--ink);color:#fff;padding:72px 0 32px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.45) 40%,rgba(124,108,255,.3) 70%,transparent);
}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:.3px;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:#9AA6B4;max-width:340px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{
  position:relative;display:inline-block;font-size:14px;color:#9AA6B4;
  padding-left:0;transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-col ul a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:2px;height:14px;border-radius:2px;background:var(--brand);
  transition:transform .2s var(--ease);
}
.footer-col ul a:hover{color:#fff;padding-left:12px}
.footer-col ul a:hover::before{transform:translateY(-50%) scaleY(1)}
.footer-col p{font-size:14px;line-height:1.8;color:#9AA6B4}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:#6B7684}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--pad-y:72px}
  .nav-links{
    position:fixed;top:88px;left:24px;right:24px;
    flex-direction:column;align-items:stretch;gap:2px;margin:0;
    background:rgba(11,15,20,.97);
    border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:10px;
    box-shadow:0 24px 60px rgba(0,0,0,.45);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
    max-height:calc(100vh - 130px);overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{padding:15px 16px;border-radius:12px;font-size:15px;min-height:52px;display:flex;align-items:center}
  .nav-links a::after{display:none}
  .nav-links li+li{border-top:1px solid rgba(255,255,255,.06)}
  .nav-links a.active{background:rgba(31,214,138,.14)}
  .nav-toggle{
    display:flex;width:44px;height:44px;border-radius:14px;
    border:1px solid rgba(255,255,255,.12);background:transparent;
    align-items:center;justify-content:center;cursor:pointer;
  }
  .nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:#fff}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#fff;
    transition:transform .2s var(--ease);
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .nav-right > .btn{display:none}
  .nav-cta-mobile{display:block;padding:12px 6px 4px}
  .nav-cta-mobile .btn{width:100%}
  .page-hero{padding:140px 0 64px;min-height:320px}
  .page-hero h1{font-size:32px}
  .hero-sub{font-size:17px}
  .hero-strip{display:none}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px}
  .stat-row{grid-template-columns:1fr 1fr}
  .cta-band{padding:44px 32px}
}
@media (max-width:639px){
  :root{--pad-y:56px}
  body{font-size:15px;line-height:1.8}
  .nav-pill{width:calc(100% - 32px);padding:0 8px 0 16px;gap:10px;top:12px}
  .brand-text em{display:none}
  .brand-text strong{font-size:16px}
  .page-hero{padding:120px 0 52px;min-height:280px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px;margin-top:12px}
  .sec-title{font-size:24px}
  .sec-title.bar{padding-left:13px}
  .section{padding:56px 0}
  .tl{padding-left:32px}
  .tl::before{left:11px}
  .tl-dot{left:-32px;width:23px;height:23px;font-size:11px}
  .entry-card{padding:20px}
  .cta-band{padding:36px 22px;border-radius:0;margin-left:-20px;margin-right:-20px}
  .notice{padding:16px 18px}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat-cell{padding:18px 16px}
  .stat-cell b{font-size:26px}
  .footer-cols{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px}
  .back-bar .inner{flex-direction:column;align-items:flex-start}
  .back-bar .btns{width:100%}
  .back-bar .btns .btn{flex:1}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --stage:#0B0F14;
  --stage-card:#141A22;
  --line-dark:rgba(255,255,255,.08);
  --muted-dark:#9AA6B4;
  --canvas:#F5F7F9;
  --card:#FFFFFF;
  --line:#E6E9EE;
  --line-soft:#EDEFF3;
  --muted:#5B6472;
  --ink:#0F1620;
  --brand:#1FD68A;
  --brand-deep:#12B872;
  --brand-soft:#E6FBF1;
  --brand-ink:#06251A;
  --accent:#FF7A2F;
  --violet:#7C6CFF;
  --warn:#FFB020;
  --danger:#E5484D;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(15,22,32,.04),0 8px 24px rgba(15,22,32,.06);
  --shadow-2:0 16px 40px rgba(15,22,32,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--canvas);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.grid-x{margin:0}
.button,.button:hover{background:none;box-shadow:none}
::selection{background:rgba(31,214,138,.28)}

/* ============ 悬浮胶囊导航 ============ */
.nav-shell{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:60;
  display:flex;
  justify-content:center;
  padding:0 24px;
  pointer-events:none;
}
.nav-pill{
  pointer-events:auto;
  width:100%;
  max-width:1140px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 12px 0 20px;
  border-radius:999px;
  background:rgba(11,15,20,.72);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.nav-pill.is-scrolled{
  height:56px;
  background:rgba(11,15,20,.90);
  border-color:rgba(255,255,255,.16);
}
.brand{display:flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand) 0%,#7CF0BE 45%,var(--violet) 100%);
  position:relative;
  box-shadow:0 0 0 1px rgba(255,255,255,.16) inset;
}
.brand-mark::after{
  content:"";position:absolute;left:5px;right:5px;top:12px;height:2px;border-radius:2px;
  background:rgba(6,37,26,.55);
}
.brand-text{display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.brand-text strong{color:#fff;font-size:17px;font-weight:800;letter-spacing:.5px}
.brand-text em{font-style:normal;color:#C7CFD9;font-size:12.5px;letter-spacing:.3px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  color:#C7CFD9;
  border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:12px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);
  transition:width .2s var(--ease);opacity:0;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:calc(100% - 28px);opacity:1}
.nav-links a.active{color:var(--brand);background:rgba(31,214,138,.12)}
.nav-links a.active::after{opacity:0}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:12px;width:20px;height:2px;border-radius:2px;background:#fff;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px;left:0}
.nav-toggle span::after{top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  position:fixed;
  top:88px;left:16px;right:16px;
  z-index:59;
  background:var(--stage);
  border:1px solid rgba(255,255,255,.10);
  border-radius:24px;
  padding:12px;
  display:none;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:flex;align-items:center;
  min-height:52px;padding:0 16px;
  color:#D6DEE7;font-size:16px;
  border-radius:12px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a:hover{background:rgba(31,214,138,.10);color:#fff}
.mobile-menu .btn{justify-content:center;margin-top:10px;border-bottom:0}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;
  border-radius:999px;
  font-size:15.5px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:0 6px 18px rgba(31,214,138,.22)}
.btn-primary:hover{background:var(--brand-deep);color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,214,138,.30)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:#EAF0F6;border:1px solid rgba(255,255,255,.24)}
.btn-ghost:hover{border-color:rgba(255,255,255,.48);background:rgba(255,255,255,.06);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid #D8DDE4}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-deep);font-size:14.5px;font-weight:600}
.link-arrow i{transition:transform .2s var(--ease);font-size:12px}
.link-arrow:hover i{transform:translateX(3px)}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12.5px;line-height:1;
  white-space:nowrap;
}
.tag-brand{background:rgba(31,214,138,.12);color:var(--brand-deep)}
.tag-violet{background:rgba(124,108,255,.12);color:var(--violet)}
.tag-accent{background:var(--accent);color:#fff}

/* ============ 文章窄头 ============ */
.article-hero{
  position:relative;
  padding:136px 0 48px;
  background-image:linear-gradient(180deg,rgba(11,15,20,.86),rgba(11,15,20,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.45),transparent);
}
.article-hero .grid-container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted-dark);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted-dark)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:rgba(255,255,255,.28)}
.breadcrumb em{font-style:normal;color:#8C99A8;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:38px;line-height:1.28;font-weight:800;color:#fff;
  max-width:900px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;
  margin-top:22px;
  font-size:13px;color:var(--muted-dark);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums}
.article-meta .meta-item i{color:var(--brand)}
.article-actions{display:flex;gap:10px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.20);
  color:#D6DEE7;font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ============ 文章主体 ============ */
.article-section{padding:64px 0 88px;background:var(--canvas)}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  align-items:start;
}
.article-main{min-width:0}
.article-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:40px;
}
.article-body{
  max-width:800px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  word-break:break-word;
}
.article-body > * + *{margin-top:20px}
.article-body p{font-size:17px;line-height:1.9}
.article-body > p:first-of-type{font-size:18px;font-weight:500;color:#1B2530}
.article-body h2{
  position:relative;
  font-size:32px;font-weight:700;line-height:1.3;
  margin:40px 0 16px;
  padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;
  background:var(--brand);
}
.article-body h3{font-size:21px;font-weight:600;line-height:1.4;margin:28px 0 12px}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 10px}
.article-body a{color:var(--brand-deep);border-bottom:1px solid rgba(18,184,114,.35)}
.article-body a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep)}
.article-body ul,.article-body ol{margin:20px 0;padding-left:0}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--brand);
}
.article-body ol{counter-reset:art-ol}
.article-body ol li{position:relative;padding-left:38px;margin-bottom:12px;counter-increment:art-ol}
.article-body ol li::before{
  content:counter(art-ol);
  position:absolute;left:0;top:.28em;
  width:24px;height:24px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:rgba(31,214,138,.05);
  border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;
  color:#2A3542;
}
.article-body blockquote p{font-size:16.5px}
.article-body img{
  width:100%;height:auto;border-radius:var(--radius-md);margin:24px 0;
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--muted);margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:var(--brand-soft);font-size:14px;font-weight:600;text-align:left;
  padding:14px 16px;color:var(--ink);
}
.article-body td{padding:14px 16px;border-top:1px solid var(--line-soft)}
.article-body tbody tr:nth-child(even){background:#FAFBFC}
.article-body code,.article-body mark{
  background:#F0F2F5;border-radius:6px;padding:2px 6px;font-size:15px;
}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.empty-state{
  text-align:center;
  padding:64px 24px;
  background:var(--canvas);
  border:1px dashed #D8DDE4;
  border-radius:var(--radius-lg);
}
.empty-state i{font-size:28px;color:var(--muted)}
.empty-state h2{font-size:22px;font-weight:700;margin:14px 0 8px}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px}

/* 标签行 */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line-soft);
}
.article-tags .tag{height:30px;padding:0 14px;font-size:13px;background:#F2F5F8;color:#3C4756}
.article-tags .tag:hover{background:var(--brand-soft);color:var(--brand-deep)}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:24px;
}
.side-card h3{
  font-size:16px;font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--brand)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-link{
  display:block;
  padding:8px 10px 8px 12px;
  font-size:14px;color:var(--muted);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  line-height:1.5;
}
.toc-link.is-sub{padding-left:24px;font-size:13.5px}
.toc-link:hover{color:var(--ink);background:var(--canvas)}
.toc-link.active{color:var(--brand-deep);border-left-color:var(--brand);background:var(--brand-soft)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:block;padding:11px 0;
  font-size:14.5px;color:var(--muted);
  border-bottom:1px solid var(--line-soft);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand-deep);padding-left:6px}
.side-cta{
  background:var(--card);
  border:1px solid rgba(31,214,138,.45);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:8px}
.side-cta p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px}
.side-cta .btn{width:100%}

/* ============ 文末区 ============ */
.article-foot{padding:0 0 88px;background:var(--canvas)}
.foot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-bottom:56px}
.adj-card{
  display:block;
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:24px 26px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.adj-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,214,138,.45)}
.adj-card .adj-label{font-size:12.5px;color:var(--muted);letter-spacing:.5px}
.adj-card h4{font-size:17px;font-weight:700;margin:8px 0 6px;line-height:1.5}
.adj-card p{font-size:14px;color:var(--muted);line-height:1.7}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:24px;
}
.section-head h2{font-size:26px;font-weight:700}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.rec-card{
  display:flex;flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-thumb .tag{position:absolute;left:12px;top:12px;background:rgba(11,15,20,.72);color:#fff}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.rec-body h4{font-size:16.5px;font-weight:700;line-height:1.5;margin-bottom:8px}
.rec-body p{font-size:14px;color:var(--muted);line-height:1.7;flex:1}
.rec-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px}
.rec-foot time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.foot-back{display:flex;justify-content:center;margin-top:40px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--stage);
  color:var(--muted-dark);
  padding:72px 0 32px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.5),transparent);
}
.footer-cols{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted-dark);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;
  font-size:14px;color:var(--muted-dark);
  padding-left:0;
  border-left:2px solid transparent;
  transition:color .2s var(--ease),padding-left .2s var(--ease),border-color .2s var(--ease);
}
.footer-col a:hover{color:#fff;padding-left:8px;border-left-color:var(--brand)}
.footer-col p{font-size:14px;line-height:1.8;color:var(--muted-dark)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding-top:24px;
  font-size:12.5px;color:#6B7684;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .btn{display:none}
  .article-hero{padding:120px 0 40px}
  .article-title{font-size:30px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .article-card{padding:28px}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:18px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-shell{padding:0 16px;top:12px}
  .nav-pill{height:58px;padding:0 10px 0 16px}
  .brand-text em{display:none}
  .article-hero{padding:104px 0 32px}
  .article-title{font-size:26px;line-height:1.35}
  .article-actions{margin-left:0}
  .article-section{padding:32px 0 48px}
  .article-card{padding:20px}
  .article-body{font-size:15.5px}
  .article-body p{font-size:15.5px;line-height:1.85}
  .article-body > p:first-of-type{font-size:16.5px}
  .article-body h2{font-size:21px;margin:32px 0 12px;padding-left:14px}
  .article-body h3{font-size:17.5px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .section-head{flex-direction:column;align-items:flex-start}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{height:48px;padding:0 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --stage:#0B0F14;
  --stage-card:#141A22;
  --stage-line:rgba(255,255,255,.08);
  --stage-text:#9AA6B4;
  --canvas:#F5F7F9;
  --surface:#FFFFFF;
  --line:#E6E9EE;
  --line-soft:#EDEFF3;
  --muted:#5B6472;
  --ink:#0F1620;
  --brand:#1FD68A;
  --brand-dark:#12B872;
  --brand-deep:#0E9E68;
  --brand-soft:#E6FBF1;
  --brand-ink:#06251A;
  --accent:#FF7A2F;
  --violet:#7C6CFF;
  --warn:#FFB020;
  --danger:#E5484D;
  --radius-card:18px;
  --radius-sm:10px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,22,32,.04),0 8px 24px rgba(15,22,32,.06);
  --shadow-hover:0 16px 40px rgba(15,22,32,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol,li{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
h1{font-size:46px;font-weight:800;line-height:1.25;letter-spacing:0}
h2{font-size:32px;font-weight:700;line-height:1.3}
h3{font-size:21px;font-weight:600;line-height:1.4}
b,strong{font-weight:700}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:relative;z-index:120}
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 48px);max-width:1140px;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 16px 0 20px;border-radius:var(--radius-pill);
  background:rgba(11,15,20,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  z-index:130;
}
.nav-pill.is-scrolled{height:56px;background:rgba(11,15,20,.90);border-color:rgba(255,255,255,.16)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  box-shadow:0 0 10px rgba(31,214,138,.35);
}
.brand-mark::after{
  content:"";position:absolute;left:6px;right:6px;top:50%;height:2px;margin-top:-1px;
  border-radius:2px;background:rgba(6,37,26,.55);
}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1;color:#fff}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-size:11.5px;font-style:normal;font-weight:500;color:var(--stage-text)}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-links a{
  position:relative;display:flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--radius-pill);font-size:15px;color:#C7CFD9;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--brand);
  transition:width .25s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:calc(100% - 28px)}
.nav-links a.active{color:var(--brand);background:rgba(31,214,138,.12)}
.nav-links a.active::after{display:none}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
  cursor:pointer;position:relative;padding:0;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:#E7ECF2;transform:translateX(-50%);transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle::before{top:15px}
.nav-toggle span{top:21px}
.nav-toggle::after{top:27px}
.nav-pill.is-open .nav-toggle::before{transform:translateX(-50%) translateY(6px) rotate(45deg)}
.nav-pill.is-open .nav-toggle span{opacity:0}
.nav-pill.is-open .nav-toggle::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg)}
.nav-mobile-cta{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(31,214,138,.28)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.24);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;border-color:#D8DDE4;color:var(--ink)}
.btn-ghost-light:hover{background:#fff;border-color:#BFC7D2;transform:translateY(-2px);box-shadow:var(--shadow-card)}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:15px}
.link-arrow::after{content:"→";transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 标签 / 胶囊 ---------- */
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;line-height:1;font-weight:500;white-space:nowrap;
}
.pill--brand{background:rgba(31,214,138,.14);color:var(--brand-deep)}
.pill--hot{background:var(--accent);color:#fff;font-weight:600}
.pill--level{background:rgba(124,108,255,.14);color:#5A4BE0}
.pill--plain{background:#F0F2F5;color:var(--muted)}

/* ---------- 深色窄头 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:136px 0 76px;min-height:360px;
  background-image:linear-gradient(180deg,rgba(11,15,20,.84),rgba(11,15,20,.95)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.45),rgba(124,108,255,.25),rgba(31,214,138,0));
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--stage-text);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--stage-text)}
.crumbs a:hover{color:#fff}
.crumbs .cur{color:#6B7684}
.page-hero h1{font-size:40px;line-height:1.3;color:#fff;max-width:820px}
.hero-sub{margin-top:18px;font-size:18px;color:#C7CFD9;max-width:640px;line-height:1.7}
.hero-deco{
  position:relative;width:100%;max-width:260px;height:150px;margin-left:auto;
  border-radius:20px;border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  overflow:hidden;
}
.hero-deco::before{
  content:"";position:absolute;left:-10%;right:40%;top:-40%;height:180%;
  background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.35));
  transform:rotate(18deg);
}
.hero-deco .lamp-line{position:absolute;left:22px;right:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),rgba(31,214,138,0))}
.hero-deco .lamp-line:nth-child(1){top:46px}
.hero-deco .lamp-line:nth-child(2){top:70px;background:linear-gradient(90deg,var(--violet),rgba(124,108,255,0))}
.hero-deco .lamp-line:nth-child(3){top:94px;background:linear-gradient(90deg,rgba(255,122,47,.8),rgba(255,122,47,0))}
.hero-deco .deco-num{
  position:absolute;left:22px;bottom:16px;font-size:30px;font-weight:800;
  font-variant-numeric:tabular-nums;color:#fff;line-height:1;
}
.hero-deco .deco-cap{position:absolute;right:22px;bottom:20px;font-size:12.5px;color:var(--stage-text)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--stage);color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--violet));
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-head--dark p{color:var(--stage-text)}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-head--row .head-text{max-width:720px}

/* ---------- 权益对照表 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius-card)}
.benefit-table{
  width:100%;border-collapse:separate;border-spacing:0;background:var(--surface);
  border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);font-size:15px;margin:0;
}
.benefit-table th,.benefit-table td{padding:16px;text-align:center;border-bottom:1px solid var(--line-soft);vertical-align:middle}
.benefit-table thead th{
  background:var(--canvas);font-size:14px;font-weight:600;color:var(--ink);
  padding:18px 16px;position:relative;
}
.benefit-table thead th:first-child{text-align:left}
.benefit-table tbody th{
  text-align:left;font-weight:500;color:var(--ink);background:var(--surface);font-size:15px;
}
.benefit-table tbody tr:hover th,
.benefit-table tbody tr:hover td{background:var(--canvas)}
.benefit-table tbody tr:last-child th,
.benefit-table tbody tr:last-child td{border-bottom:0}
.benefit-table th.reco,.benefit-table td.reco{
  background:var(--surface);border-left:2px solid var(--brand);border-right:2px solid var(--brand);
}
.benefit-table thead th.reco{border-top:2px solid var(--brand);border-radius:14px 14px 0 0}
.benefit-table tbody tr:last-child td.reco{border-bottom:2px solid var(--brand);border-radius:0 0 14px 14px}
.benefit-table tbody tr:hover td.reco{background:#FBFFFD}
.reco-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
}
.tick{color:var(--brand-dark);font-weight:700;font-size:16px}
.dash{color:#C7CFD9;font-weight:600}
.cell-num{font-variant-numeric:tabular-nums}
.plan-cards{display:none}

/* ---------- 移动端档位卡 ---------- */
.plan-card{
  position:relative;background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius-card);padding:24px 20px;box-shadow:var(--shadow-card);
}
.plan-card.is-reco{border:2px solid var(--brand)}
.plan-card .plan-flag{position:absolute;top:-13px;left:20px}
.plan-card h3{font-size:19px;margin-bottom:6px}
.plan-price{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.plan-list{display:grid;gap:10px;margin-bottom:16px}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.6}
.plan-list li .dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:9px}
.plan-card details{border-top:1px solid var(--line-soft);padding-top:14px;margin-bottom:18px}
.plan-card summary{
  list-style:none;cursor:pointer;font-size:14px;font-weight:600;color:var(--brand-deep);
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.plan-card summary::-webkit-details-marker{display:none}
.plan-card summary::after{content:"＋";font-size:16px;color:var(--brand-deep)}
.plan-card details[open] summary::after{content:"－"}
.plan-card details ul{display:grid;gap:8px;margin-top:12px}
.plan-card details li{font-size:13.5px;color:var(--muted);line-height:1.6;display:flex;justify-content:space-between;gap:12px}
.plan-card details li b{font-weight:600;color:var(--ink);flex:0 0 auto}

/* ---------- 等级卡 ---------- */
.level-card{
  position:relative;height:100%;padding:28px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.04);border:1px solid var(--stage-line);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.level-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18)}
.level-card.is-feature{transform:translateY(-8px);border-color:rgba(124,108,255,.42);box-shadow:0 0 12px rgba(124,108,255,.22)}
.level-card.is-feature:hover{transform:translateY(-12px)}
.geo-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;font-size:15px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--violet),var(--accent));
  clip-path:polygon(25% 3%,75% 3%,100% 50%,75% 97%,25% 97%,0 50%);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.level-card h3{color:#fff;font-size:21px;margin:18px 0 8px}
.level-card p{color:var(--stage-text);font-size:14.5px;line-height:1.7;min-height:74px}
.bar{height:8px;border-radius:var(--radius-pill);background:var(--line);overflow:hidden}
.bar--dark{background:rgba(255,255,255,.10)}
.bar > i{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--brand),var(--violet))}
.w20 > i{width:20%}.w45 > i{width:45%}.w70 > i{width:70%}.w92 > i{width:92%}
.level-meta{margin-top:14px;font-size:13px;color:var(--stage-text);display:flex;justify-content:space-between;gap:12px}
.level-meta b{color:#fff;font-variant-numeric:tabular-nums;font-size:16px;font-weight:700}

/* ---------- 内容卡 ---------- */
.ui-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.ui-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius-img);background:var(--brand-soft)}
.ui-card .thumb{border-radius:var(--radius-card) var(--radius-card) 0 0}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.ui-card:hover .thumb img{transform:scale(1.03)}
.thumb-tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--brand-deep)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:19px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.card-meta .clock::before{content:"◷";margin-right:6px;color:#AEB6C2}

/* ---------- 横向滚动行 ---------- */
.scroll-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scroll-row > *{min-width:0}

/* ---------- 图文与步骤 ---------- */
.figure{position:relative;border-radius:var(--radius-card);overflow:hidden;background:var(--brand-soft)}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card)}
.figure::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(31,214,138,.6),rgba(31,214,138,0));
}
.step-list{margin-top:26px;display:grid;gap:22px}
.step-list li{position:relative;padding-left:38px}
.step-list li::before{
  content:"";position:absolute;left:11px;top:28px;bottom:-22px;width:1px;
  background:linear-gradient(180deg,var(--line),rgba(230,233,238,0));
}
.step-list li:last-child::before{display:none}
.step-idx{
  position:absolute;left:0;top:2px;width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
  background:var(--brand-soft);color:var(--brand-deep);font-variant-numeric:tabular-nums;
}
.step-list h3{font-size:18px;margin-bottom:6px}
.step-list p{font-size:15px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px}
.faq-item{
  position:relative;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;margin-bottom:12px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .25s var(--ease);
}
.faq-item.is-open{background:#FAFCFB;border-color:rgba(31,214,138,.35)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.5;
}
.faq-q .plus{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid #D8DDE4;transition:transform .25s var(--ease),border-color .2s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--muted);border-radius:2px;
}
.faq-q .plus::before{width:10px;height:2px;transform:translate(-50%,-50%)}
.faq-q .plus::after{width:2px;height:10px;transform:translate(-50%,-50%)}
.faq-item.is-open .plus{transform:rotate(45deg);border-color:var(--brand)}
.faq-item.is-open .plus::before,.faq-item.is-open .plus::after{background:var(--brand-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA 带 ---------- */
.cta-wrap{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:56px;
  background:var(--stage);color:#fff;
  background-image:linear-gradient(180deg,rgba(20,26,34,.9),rgba(11,15,20,.96));
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(31,214,138,.9),rgba(124,108,255,.4),rgba(31,214,138,0));
}
.cta-band::after{
  content:"";position:absolute;left:-5%;right:55%;top:-60%;height:220%;
  background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.16),rgba(31,214,138,0));
  transform:rotate(16deg);pointer-events:none;
}
.cta-band h2{color:#fff;font-size:32px;padding-left:0}
.cta-band h2::before{display:none}
.cta-sub{margin-top:14px;color:var(--stage-text);font-size:16px}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:#DCE3EA}
.cta-points li::before{content:"✓";color:var(--brand);font-weight:700}
.cta-form{position:relative;z-index:2;display:grid;gap:16px}
.field label{display:block;font-size:13.5px;color:#C7CFD9;margin-bottom:8px}
.field .req{color:var(--brand)}
.field input{
  width:100%;height:52px;padding:0 16px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:#8A94A3}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,214,138,.18)}
.cta-tip{font-size:12.5px;color:var(--stage-text);line-height:1.7}
.cta-aux{font-size:12.5px;color:#C7CFD9;text-decoration:underline;text-underline-offset:3px}
.cta-aux:hover{color:var(--brand)}

/* ---------- 返回导航条 ---------- */
.back-nav{padding:0 0 88px}
.back-nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:24px 28px;box-shadow:var(--shadow-card);
}
.back-nav-inner p{font-size:15px;color:var(--muted)}
.back-nav-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--stage);color:var(--stage-text);
  padding:72px 0 28px;font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(31,214,138,0),rgba(31,214,138,.55),rgba(124,108,255,.3),rgba(31,214,138,0));
}
.footer-cols{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--stage-text);max-width:340px}
.footer-col h4{font-size:14px;color:var(--brand);font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:12px}
.footer-col ul a{
  position:relative;font-size:14px;color:var(--stage-text);padding-left:0;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-col ul a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--brand);border-radius:2px;transition:height .2s var(--ease);
}
.footer-col ul a:hover{color:#fff;padding-left:10px}
.footer-col ul a:hover::before{height:14px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--stage-text);max-width:320px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:#6B7684}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .scroll-row{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  h1{font-size:34px}
  h2{font-size:26px}
  .section{padding:72px 0}
  .section--tight{padding:64px 0}
  .page-hero{padding:124px 0 64px;min-height:340px}
  .page-hero h1{font-size:32px}
  .hero-deco{max-width:100%;height:96px;margin:28px 0 0}
  .hero-deco .deco-num{bottom:12px}
  .hero-deco .deco-cap{bottom:16px}
  .nav-links{
    display:none;position:fixed;top:88px;left:24px;right:24px;
    flex-direction:column;align-items:stretch;gap:6px;padding:16px;
    border-radius:24px;background:rgba(11,15,20,.96);
    border:1px solid rgba(255,255,255,.10);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:0 24px 60px rgba(0,0,0,.5);
  }
  .nav-pill.is-open .nav-links{display:flex}
  .nav-links a{height:52px;padding:0 16px;border-radius:12px;font-size:16px;justify-content:flex-start}
  .nav-links a::after{display:none}
  .nav-links a.active{background:rgba(31,214,138,.14)}
  .nav-mobile-cta{
    display:flex;width:100%;margin-top:8px;
  }
  .nav-right .btn{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius-card)}
  .benefit-table{min-width:840px}
  .benefit-table th:first-child,
  .benefit-table tbody th:first-child{
    position:sticky;left:0;z-index:3;background:var(--surface);
    box-shadow:1px 0 0 var(--line-soft);
  }
  .benefit-table thead th:first-child{background:var(--canvas)}
  .benefit-table tbody tr:hover th:first-child{background:var(--canvas)}
  .scroll-row{grid-template-columns:repeat(2,1fr)}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px 32px;border-radius:24px}
  .cta-band h2{font-size:26px}
}
@media (max-width:639px){
  h1{font-size:30px}
  h2{font-size:24px}
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .section--tight{padding:52px 0}
  .section-head{margin-bottom:32px}
  .nav-pill{width:calc(100% - 32px);height:60px;padding:0 12px 0 16px}
  .nav-pill.is-scrolled{height:54px}
  .brand-text em{display:none}
  .page-hero{padding:112px 0 52px;min-height:300px}
  .page-hero h1{font-size:27px}
  .hero-sub{font-size:16px}
  .table-scroll{display:none}
  .plan-cards{display:grid;gap:16px}
  .scroll-row{
    display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
    margin:0 -20px;padding:4px 20px 12px;
    -webkit-mask-image:linear-gradient(90deg,#000 86%,transparent);
    mask-image:linear-gradient(90deg,#000 86%,transparent);
  }
  .scroll-row > *{flex:0 0 78%;scroll-snap-align:start}
  .level-card.is-feature{transform:none}
  .level-card.is-feature:hover{transform:translateY(-4px)}
  .level-card p{min-height:0}
  .back-nav-inner{flex-direction:column;align-items:stretch;padding:22px 20px}
  .back-nav-inner .btn{width:100%}
  .back-nav-actions{flex-direction:column}
  .cta-wrap{padding:0 0 64px}
  .cta-band{border-radius:0;padding:36px 20px;margin:0 -20px}
  .footer-cols{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a p{padding:0 18px 20px}
  .card-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .ui-card:hover,.level-card:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --stage:#0B0F14;
  --stage-card:#141A22;
  --dark-line:rgba(255,255,255,.08);
  --dark-muted:#9AA6B4;
  --canvas:#F5F7F9;
  --surface:#FFFFFF;
  --line:#E6E9EE;
  --line-soft:#EDEFF3;
  --muted:#5B6472;
  --ink:#0F1620;
  --brand:#1FD68A;
  --brand-dark:#12B872;
  --brand-soft:#E6FBF1;
  --on-brand:#06251A;
  --accent:#FF7A2F;
  --violet:#7C6CFF;
  --warn:#FFB020;
  --danger:#E5484D;
  --r-card:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-btn:999px;
  --shadow-card:0 1px 2px rgba(15,22,32,.04), 0 8px 24px rgba(15,22,32,.06);
  --shadow-hover:0 16px 40px rgba(15,22,32,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--canvas);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover{color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;cursor:pointer;border:0;background:none;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--on-brand);padding:10px 18px;border-radius:0 0 12px 0;z-index:99;}
.skip-link:focus{left:0;}
.grid-container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.grid-x{display:flex;flex-flow:row wrap;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.cell{min-width:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform 200ms var(--ease),background 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
  white-space:nowrap;
}
.btn-sm{height:44px;padding:0 22px;font-size:14.5px;}
.btn-primary{background:var(--brand);color:var(--on-brand);}
.btn-primary:hover{background:var(--brand-dark);color:var(--on-brand);transform:translateY(-2px);box-shadow:0 12px 28px rgba(31,214,138,.28);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-2px);}
.btn-ghost-light{background:#fff;border-color:#D8DDE4;color:var(--ink);}
.btn-ghost-light:hover{border-color:var(--brand);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-card);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-dark);font-size:14.5px;font-weight:600;}
.link-arrow i{transition:transform 200ms var(--ease);}
.link-arrow:hover{color:var(--brand-dark);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:60;
  width:calc(100% - 48px);max-width:1140px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 14px 0 20px;border-radius:999px;
  background:rgba(11,15,20,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  transition:height 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-pill.is-scrolled{height:56px;background:rgba(11,15,20,.90);border-color:rgba(255,255,255,.16);}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--violet));}
.brand-mark::after{content:"";position:absolute;left:6px;right:6px;top:12px;height:2px;border-radius:2px;background:#06251A;opacity:.7;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#fff;font-size:16px;font-weight:800;letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--brand);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;color:#C7CFD9;font-size:15px;
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;bottom:6px;width:12px;height:2px;
  border-radius:2px;background:var(--brand);transition:width 200ms var(--ease);
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:calc(100% - 28px);}
.nav-links a.active{color:var(--brand);background:rgba(31,214,138,.12);}
.nav-links a.active::after{display:none;}
.nav-right{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;border-radius:14px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
}
.nav-toggle span{position:absolute;left:50%;top:50%;width:18px;height:2px;border-radius:2px;background:#fff;transform:translate(-50%,-50%);transition:background 200ms var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform 200ms var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-pill.nav-open .nav-toggle span{background:transparent;}
.nav-pill.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
.nav-pill.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;color:#fff;
  padding:150px 0 78px;min-height:380px;
  background-image:linear-gradient(180deg,rgba(11,15,20,.86),rgba(11,15,20,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.45),transparent);
}
.page-head .grid-container{position:relative;z-index:2;}
.head-band{
  position:absolute;right:7%;top:38%;width:230px;height:112px;
  border:1px solid rgba(31,214,138,.35);border-radius:22px;transform:rotate(-8deg);z-index:1;
}
.head-band::after{content:"";position:absolute;inset:16px;border:1px solid rgba(124,108,255,.32);border-radius:14px;}
.crumbs{margin-bottom:22px;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--dark-muted);}
.crumbs li{display:flex;align-items:center;}
.crumbs li+li::before{content:"/";margin:0 8px;color:rgba(255,255,255,.25);}
.crumbs a{color:var(--dark-muted);}
.crumbs a:hover{color:#fff;}
.crumbs li[aria-current]{color:#8A94A3;}
.page-head h1{font-size:40px;font-weight:800;line-height:1.25;letter-spacing:0;max-width:20ch;}
.page-sub{margin-top:16px;font-size:16.5px;color:#C7CFD9;max-width:52ch;line-height:1.8;}
.head-facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.head-facts li{
  display:flex;align-items:baseline;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
  font-size:13.5px;color:#C7CFD9;
}
.head-facts strong{font-size:19px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:60px 0;}
.section-head{margin-bottom:44px;}
.section-head h2{position:relative;padding-left:18px;font-size:32px;font-weight:700;line-height:1.3;letter-spacing:0;}
.section-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--brand);}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:64ch;padding-left:18px;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 安全提示条 ---------- */
.notice-bar{
  display:flex;align-items:flex-start;gap:14px;
  background:rgba(255,176,32,.08);border:1px solid rgba(255,176,32,.32);
  border-radius:16px;padding:20px 24px;
}
.notice-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;background:var(--warn);
  color:#3A2400;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;line-height:1;
}
.notice-bar p{font-size:15px;color:#4A4232;line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-col{display:flex;flex-direction:column;}
.faq-item{
  position:relative;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:14px;margin-bottom:12px;
  transition:background 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform 200ms var(--ease);
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item[open]{background:#FAFCFB;box-shadow:var(--shadow-card);border-color:#DDE6E1;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;min-height:64px;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);}
.faq-icon{position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);background:#fff;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;border-radius:2px;background:var(--brand);transform:translate(-50%,-50%);}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:transform 200ms var(--ease),opacity 200ms var(--ease);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{padding:0 22px 22px;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 图文卡 ---------- */
.media-card{
  display:block;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.media-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms var(--ease);}
.media-card:hover .media-thumb img{transform:scale(1.03);}
.media-body{padding:28px;}
.media-body h3{font-size:21px;font-weight:600;line-height:1.4;}
.media-body p{margin-top:12px;font-size:15px;line-height:1.75;color:var(--muted);}
.media-body .link-arrow{margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(31,214,138,.12);color:#0E7A4E;
}
.mini-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.mini-card{
  display:flex;gap:18px;flex:1;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow-card);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.mini-thumb{flex:0 0 40%;border-radius:var(--r-img);overflow:hidden;background:var(--brand-soft);}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-body{min-width:0;}
.mini-body h3{font-size:17px;font-weight:600;line-height:1.45;}
.mini-body p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted);}

/* ---------- CTA 带 ---------- */
.cta-band{padding:88px 0;}
.cta-card{
  position:relative;overflow:hidden;color:#fff;
  background:var(--stage);border:1px solid var(--dark-line);
  border-radius:28px;padding:56px;
}
.cta-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,138,0));
}
.cta-card::after{
  content:"";position:absolute;right:-80px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,108,255,.20),transparent 70%);
}
.cta-card .grid-x{position:relative;z-index:2;}
.cta-card h2{font-size:32px;font-weight:700;line-height:1.3;}
.cta-card .cta-sub{margin-top:12px;font-size:15.5px;color:var(--dark-muted);max-width:38ch;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#C7CFD9;}
.cta-points i{color:var(--brand);margin-top:5px;font-size:13px;}
.field{display:block;margin-bottom:14px;}
.field .label{display:block;font-size:13.5px;color:var(--dark-muted);margin-bottom:8px;}
.field input{
  width:100%;height:52px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:15px;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field input::placeholder{color:#8A94A3;}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(31,214,138,.35);}
.form-tip{margin-top:12px;font-size:12.5px;color:#8A94A3;}
.form-tip.is-ok{color:var(--brand);}

/* ---------- 返回导航条 ---------- */
.back-strip{background:#fff;border-top:1px solid var(--line);padding:32px 0;}
.back-strip-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.back-strip p{font-size:15px;color:var(--muted);max-width:56ch;}
.back-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--stage);color:#fff;padding:64px 0 28px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,138,.5),transparent);
}
.footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--dark-muted);max-width:32ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{position:relative;display:inline-block;font-size:14px;color:var(--dark-muted);transition:color 200ms var(--ease),padding-left 200ms var(--ease);}
.footer-col ul a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--brand);transition:height 200ms var(--ease);
}
.footer-col ul a:hover{color:#fff;padding-left:12px;}
.footer-col ul a:hover::before{height:14px;}
.footer-col p{font-size:14px;line-height:1.8;color:var(--dark-muted);max-width:34ch;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);
  font-size:12.5px;color:#6B7684;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .page-head{padding:132px 0 64px;min-height:0;}
  .page-head h1{font-size:32px;}
  .head-band{display:none;}
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{padding:40px;border-radius:24px;}
  .cta-card h2{font-size:26px;}
  .mini-stack{gap:20px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:14px;border-radius:22px;
    background:rgba(11,15,20,.96);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.10);
    max-height:calc(100vh - 120px);overflow:auto;
  }
  .nav-pill.nav-open .nav-links{display:flex;}
  .nav-links li{width:100%;}
  .nav-links a{
    display:flex;width:100%;height:52px;border-radius:12px;padding:0 16px;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .nav-links a::after{display:none;}
  .nav-links a:hover{background:rgba(255,255,255,.06);}
  .nav-links a.active{background:rgba(31,214,138,.12);}
  .nav-right .btn{display:none;}
}
@media screen and (max-width:639px){
  body{font-size:15px;line-height:1.8;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .page-head{padding:118px 0 56px;}
  .page-head h1{font-size:30px;}
  .page-sub{font-size:15px;}
  .head-facts{gap:10px;margin-top:22px;}
  .head-facts li{padding:8px 14px;font-size:12.5px;}
  .head-facts strong{font-size:17px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2{font-size:24px;}
  .section-head p{font-size:14.5px;}
  .faq-item summary{padding:16px 18px;min-height:56px;}
  .faq-q{font-size:16px;}
  .faq-a{padding:0 18px 18px;}
  .media-body{padding:20px;}
  .media-body h3{font-size:18px;}
  .mini-card{flex-direction:column;}
  .mini-thumb{flex:0 0 auto;aspect-ratio:16/9;}
  .cta-band{padding:56px 0;}
  .cta-card{padding:26px 20px;border-radius:0;border-left:0;border-right:0;}
  .cta-card h2{font-size:24px;}
  .footer-cols{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:32px;}
  .back-strip-inner{flex-direction:column;align-items:flex-start;}
  .back-actions{width:100%;}
  .back-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}