/* roulang page: index */
:root{
  --brand-50:#F1ECFE; --brand-100:#E3DAFD; --brand-200:#C9B8FB;
  --brand-500:#7C52F5; --brand-600:#6C3CF0; --brand-700:#5527CC;
  --accent-400:#3BE6C8; --accent-500:#14D8B4; --accent-600:#0FB795;
  --ember:#FF7A3D;
  --ink:#17102E; --ink-700:#241A44; --paper:#F7F6FC;
  --text:#1B1526; --text-muted:#5A5470; --line:#E8E5F3; --line-soft:#F0EDF8;
  --r-card:16px; --r-banner:20px; --r-btn:12px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,16,46,.06);
  --sh-2:0 10px 30px -14px rgba(108,60,240,.30);
  --sh-2h:0 10px 30px -14px rgba(108,60,240,.30), 0 0 0 1px rgba(108,60,240,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;line-height:1.9;color:var(--text);background:var(--paper);
  padding-bottom:calc(78px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-200);color:var(--ink)}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
.measure{max-width:760px;margin-left:auto;margin-right:auto}

/* ============ 顶部倒计时条 ============ */
.topbar{
  background:linear-gradient(90deg,#17102E 0%,#241A44 55%,#3A1F7A 100%);
  color:#EDE9FB;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:52px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;
}
.topbar-text{font-size:14px;display:flex;align-items:center;gap:8px;line-height:1.5}
.topbar-text .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);
  box-shadow:0 0 0 4px rgba(20,216,180,.18);flex:0 0 auto;
}
#countdown{color:var(--accent-400);font-weight:700;letter-spacing:.04em}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn-ember-sm{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:34px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--ember);color:#fff;font-size:13px;font-weight:700;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-ember-sm:hover{transform:translateY(-1px);box-shadow:0 8px 18px -8px rgba(255,122,61,.85)}
.topbar-close{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  color:#BDB4E4;font-size:18px;line-height:1;transition:background .18s var(--ease),color .18s var(--ease);
}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}
@media (max-width:640px){
  .topbar-inner{padding-top:6px;padding-bottom:6px}
  .topbar-text{font-size:13px;width:100%;justify-content:flex-start}
  .topbar-actions{width:100%;justify-content:flex-start}
}

/* ============ 站点头部 ============ */
.site-head{position:sticky;top:0;z-index:70;transition:box-shadow .24s var(--ease),background .24s var(--ease)}
.site-head .mainnav{
  background:rgba(247,246,252,.92);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-head.is-stuck .mainnav{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 24px -20px rgba(23,16,46,.55);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-700));
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(108,60,240,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-text span{font-size:11px;color:var(--text-muted);letter-spacing:.06em}
.nav-links{display:none;align-items:center;gap:28px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:#3A3352;padding:20px 0;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--brand-700);font-weight:700}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-wrap:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 20px -12px rgba(108,60,240,.95)}
.btn-primary:hover{background:var(--brand-500);transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(108,60,240,.95)}
.btn-primary:active{transform:translateY(0);background:var(--brand-700)}
.btn-ghost{background:#fff;color:var(--brand-700);border:1px solid var(--brand-200)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:var(--brand-100)}
.btn-light{background:#fff;color:var(--brand-700);box-shadow:0 10px 24px -16px rgba(0,0,0,.6)}
.btn-light:hover{background:var(--brand-50);transform:translateY(-1px)}
.btn:disabled,.btn[disabled]{background:#D8D4E6;color:#8E88A6;box-shadow:none;cursor:not-allowed;transform:none;opacity:.55}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:10px 0 16px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:15px;color:#3A3352;border-bottom:1px solid var(--line-soft);
}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer a[aria-current="page"]{color:var(--brand-700);font-weight:700}
.mobile-drawer .drawer-cta{margin-top:12px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#17102E 0%,#241A44 42%,#5527CC 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 340px at 12% 18%,rgba(20,216,180,.20),transparent 68%),
    radial-gradient(520px 320px at 88% 82%,rgba(255,122,61,.18),transparent 66%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(70% 65% at 50% 45%,#000,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 65% at 50% 45%,#000,transparent 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 64px}
@media (min-width:768px){.hero-inner{padding:72px 0 88px}}
@media (min-width:1024px){.hero-inner{padding:96px 0 104px}}
.hero-grid{display:grid;gap:36px}
@media (min-width:1024px){.hero-grid{grid-template-columns:1fr 1fr;gap:48px;align-items:center}}
.hero-copy{max-width:560px;text-shadow:0 2px 8px rgba(0,0,0,.28)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13px;letter-spacing:.04em;color:#E9E4FF;
}
.hero h1{
  margin-top:20px;
  font-size:30px;line-height:1.32;font-weight:800;letter-spacing:-.01em;
}
@media (min-width:768px){.hero h1{font-size:40px}}
@media (min-width:1024px){.hero h1{font-size:46px;line-height:1.28}}
.hero h1 em{font-style:normal;color:var(--accent-400)}
.hero-sub{
  margin-top:18px;font-size:16px;line-height:1.85;color:#D9D3F2;max-width:520px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:#EFEBFF;
}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-banner);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.85);
  border:1px solid rgba(255,255,255,.16);
}
.hero-float{
  position:absolute;left:16px;bottom:-18px;
  background:#fff;color:var(--ink);
  border-radius:var(--r-card);padding:14px 18px;
  box-shadow:0 18px 40px -20px rgba(23,16,46,.75);
  display:flex;align-items:center;gap:14px;
}
.hero-float .num{font-size:22px;font-weight:800;color:var(--brand-700);line-height:1.2}
.hero-float .lbl{font-size:12px;color:var(--text-muted);letter-spacing:.02em}
@media (min-width:1024px){.hero-float{left:-24px;bottom:-24px}}

/* ============ 通用区块 ============ */
.section{padding:44px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-paper{background:var(--paper)}
.section-white{background:#fff}
.section-ink{background:linear-gradient(160deg,#17102E 0%,#241A44 100%);color:#fff;position:relative;overflow:hidden}
.section-ink::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 80% 10%,rgba(108,60,240,.42),transparent 70%);
}
.section-ink > .container{position:relative;z-index:2}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.sec-title{font-size:22px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
@media (min-width:768px){.sec-title{font-size:28px}}
.sec-desc{margin-top:10px;font-size:15px;color:var(--text-muted);max-width:640px;line-height:1.85}
.section-ink .sec-title{color:#fff}
.section-ink .sec-desc{color:#C6BFE4}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-600);
  transition:color .18s var(--ease),gap .18s var(--ease);
}
.link-more:hover{color:var(--brand-700);gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;line-height:1.7;
}
.badge-brand{background:var(--brand-50);color:var(--brand-700)}
.badge-ember{background:rgba(255,122,61,.12);color:#C74F16}
.badge-ink{background:rgba(255,255,255,.14);color:#E9E4FF;border:1px solid rgba(255,255,255,.2)}
.badge-accent{background:rgba(20,216,180,.14);color:#0A8570}

/* ============ 卖点阶梯区 ============ */
.step-grid{display:grid;gap:20px}
@media (min-width:1024px){.step-grid{grid-template-columns:5fr 7fr;gap:24px;align-items:start}}
.step-lead{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);overflow:hidden;
}
.step-lead img{width:100%;aspect-ratio:16/10;object-fit:cover}
.step-lead-body{padding:22px}
.step-lead-body h3{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.step-lead-body p{margin-top:10px;font-size:15px;color:var(--text-muted)}
.step-lead-list{margin-top:16px;display:grid;gap:10px}
.step-lead-list li{display:flex;gap:10px;font-size:14px;color:#3A3352;line-height:1.75}
.step-lead-list li::before{
  content:"";flex:0 0 auto;margin-top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.step-cards{display:grid;gap:20px}
@media (min-width:640px){.step-cards{grid-template-columns:1fr 1fr}}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2h);border-color:rgba(108,60,240,.4)}
@media (min-width:1024px){.step-cards .step-card:nth-child(2){margin-top:40px}.step-cards .step-card:nth-child(4){margin-top:40px}}
.step-num{
  font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.step-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand-700);margin:12px 0 14px;
}
.step-card h3{font-size:17px;font-weight:800;color:var(--ink)}
.step-card p{margin-top:8px;font-size:14px;color:var(--text-muted);line-height:1.8}

/* ============ 图墙马赛克 ============ */
.mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}
@media (min-width:768px){.mosaic{gap:16px}}
.mosaic-item{
  position:relative;overflow:hidden;border-radius:var(--r-banner);
  grid-column:span 12;aspect-ratio:16/10;
}
.mosaic-item.s6{grid-column:span 6}
.mosaic-item.s4{grid-column:span 4}
.mosaic-item.s3{grid-column:span 3}
.mosaic-item.s8{grid-column:span 8}
.mosaic-item img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.mosaic-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,16,46,0) 34%,rgba(23,16,46,.82) 100%);
  transition:background .24s var(--ease);
}
.mosaic-item:hover img{transform:scale(1.05)}
.mosaic-item:hover::after{background:linear-gradient(180deg,rgba(23,16,46,.18) 20%,rgba(23,16,46,.92) 100%)}
.mosaic-label{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:3;color:#fff;
  font-size:14px;font-weight:700;letter-spacing:.02em;
  transition:transform .24s var(--ease);
}
.mosaic-item:hover .mosaic-label{transform:translateY(-4px)}
@media (max-width:640px){
  .mosaic{grid-template-columns:repeat(2,1fr)}
  .mosaic-item,.mosaic-item.s6,.mosaic-item.s4,.mosaic-item.s3,.mosaic-item.s8{grid-column:span 1;aspect-ratio:4/3}
}

/* ============ CMS 列表 ============ */
.cms-feature{
  display:grid;gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
@media (min-width:768px){.cms-feature{grid-template-columns:minmax(0,340px) minmax(0,1fr)}}
.cms-feature:hover{box-shadow:var(--sh-2h);border-color:rgba(108,60,240,.35)}
.cms-feature-media img{width:100%;height:100%;min-height:200px;aspect-ratio:16/10;object-fit:cover}
.cms-feature-body{padding:22px}
@media (min-width:768px){.cms-feature-body{padding:26px 28px}}
.cms-feature-title{margin-top:14px;font-size:20px;font-weight:800;line-height:1.5;color:var(--ink)}
.cms-feature-title a:hover{color:var(--brand-600)}
.cms-feature-sum{
  margin-top:12px;font-size:15px;color:var(--text-muted);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;
  font-size:13px;color:var(--text-muted);
}
.meta-row .sep{width:1px;height:12px;background:var(--line)}
.list-stack{margin-top:20px;display:grid;gap:12px}
.list-card{
  display:grid;grid-template-columns:1fr;gap:10px;align-items:center;
  padding:16px 18px;background:#fff;border:1px solid var(--line);
  border-radius:14px;transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
@media (min-width:768px){.list-card{grid-template-columns:96px minmax(0,1fr) auto;gap:20px}}
.list-card:hover{background:#FBFAFF;border-color:rgba(108,60,240,.35);transform:translateX(2px);box-shadow:var(--sh-1)}
.list-thumb{width:96px;height:64px;border-radius:10px;object-fit:cover;display:none}
@media (min-width:768px){.list-thumb{display:block}}
.list-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.6}
.list-title a:hover{color:var(--brand-600)}
.list-sum{
  margin-top:6px;font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.list-side{display:flex;flex-direction:column;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-muted)}
@media (min-width:768px){.list-side{align-items:flex-end;text-align:right}}
.empty-state{
  margin-top:20px;padding:36px 24px;border-radius:var(--r-card);
  background:var(--brand-50);border:1px dashed var(--brand-200);
  text-align:center;
}
.empty-state .icon{
  width:48px;height:48px;margin:0 auto 14px;border-radius:50%;
  background:#fff;display:grid;place-items:center;color:var(--brand-600);
  box-shadow:var(--sh-1);
}
.empty-state p{font-size:15px;color:var(--text-muted)}
.empty-state .btn{margin-top:18px}

/* ============ 数据条 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:20px}}
.stat-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:22px 20px;
  transition:background .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.stat-card:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);border-color:rgba(20,216,180,.45)}
.stat-card .val{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
@media (min-width:768px){.stat-card .val{font-size:32px}}
.stat-card .val small{font-size:14px;font-weight:600;color:var(--accent-400);margin-left:4px}
.stat-card .lab{margin-top:8px;font-size:14px;color:#C6BFE4}

/* ============ CTA 表单 ============ */
.cta-grid{display:grid;gap:32px}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:center}}
.cta-form{
  background:#fff;border-radius:var(--r-card);padding:24px;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.7);
}
@media (min-width:768px){.cta-form{padding:30px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:#3A3352;margin-bottom:8px}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FCFBFF;color:var(--text);
  font-size:15px;font-family:inherit;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field input::placeholder{color:#A49EBE}
.field input:focus,.field select:focus{
  outline:none;background:#fff;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(108,60,240,.16);
}
.field .hint{font-size:12px;color:var(--text-muted);margin-top:6px}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:6px}
.form-foot .btn{flex:1 1 auto}
@media (min-width:640px){.form-foot .btn{flex:0 0 auto;min-width:160px;margin-left:auto}}
.form-note{font-size:12px;color:var(--text-muted);margin-top:14px;line-height:1.7}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;position:relative;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand-600);
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.faq-item.is-open{border-color:var(--brand-200);box-shadow:var(--sh-1)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;font-size:16px;font-weight:700;color:var(--ink);
  line-height:1.6;min-height:44px;
}
.faq-q:hover{color:var(--brand-600)}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-50);color:var(--brand-700);
  font-size:16px;font-weight:800;line-height:1;transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-item.is-open .faq-sign{background:var(--brand-600);color:#fff}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .22s ease-out,opacity .22s ease-out;
}
.faq-item.is-open .faq-a{max-height:300px;opacity:1}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-muted);line-height:1.9}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:#B9B2D6;padding:52px 0 24px}
.foot-grid{display:grid;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}}
.foot-brand .logo-text strong{color:#fff}
.foot-brand .logo-text span{color:rgba(255,255,255,.5)}
.foot-brand p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:280px}
.foot-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.foot-col a:hover{color:#fff;transform:translateX(2px)}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px;line-height:1.7}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:rgba(255,255,255,.5);line-height:1.8;
}

/* ============ 移动底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -16px rgba(23,16,46,.6);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;min-height:64px;font-size:11px;color:rgba(23,16,46,.6);
  transition:color .18s var(--ease);
}
.tab-item svg{width:22px;height:22px;stroke-width:1.8}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:28px;height:2px;border-radius:2px;background:var(--brand-600);
  transition:transform .2s var(--ease);
}
.tab-item[aria-current="page"]{color:var(--brand-600);font-weight:700}
.tab-item[aria-current="page"]::before{transform:translateX(-50%) scaleX(1)}
.tab-item:hover{color:var(--brand-600)}
@media (min-width:1024px){.tabbar{display:none}}

/* ============ 动效 ============ */
.fade-up{opacity:0;transform:translateY(14px)}
.fade-up.in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#EFEDF8}
::-webkit-scrollbar-thumb{background:#C9C2E4;border-radius:8px;border:2px solid #EFEDF8}
::-webkit-scrollbar-thumb:hover{background:var(--brand-500)}

/* roulang page: article */
:root{
    --brand-50:#F1ECFE; --brand-100:#E4DBFD; --brand-200:#CBBBFB; --brand-500:#7C55F3;
    --brand-600:#6C3CF0; --brand-700:#5729C9; --brand-800:#451FA0;
    --accent:#14D8B4; --accent-soft:rgba(20,216,180,.16); --ember:#FF7A3D;
    --ink:#17102E; --ink-700:#2E2450; --body:#1B1526; --muted:#5A5470; --muted-2:#8B85A3;
    --line:#E8E5F3; --line-2:#F0EDF8; --paper:#F7F6FC; --card:#FFFFFF;
    --r-card:16px; --r-btn:12px; --r-img:20px;
    --sh-1:0 1px 2px rgba(23,16,46,.06);
    --sh-2:0 10px 30px -14px rgba(108,60,240,.30);
    --sh-3:0 0 0 1px rgba(108,60,240,.20), 0 12px 34px -16px rgba(108,60,240,.36);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;line-height:1.9;color:var(--body);background:var(--paper);
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  h1,h2,h3,h4{margin:0;letter-spacing:-.01em;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;}
  button,input,select,textarea{font:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px;}
  ::selection{background:rgba(108,60,240,.18);}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--paper);}
  ::-webkit-scrollbar-thumb{background:#CFC7EC;border-radius:999px;border:2px solid var(--paper);}
  ::-webkit-scrollbar-thumb:hover{background:var(--brand-300);}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  .skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:99;}
  .skip-link:focus{left:0;}

  /* ============ 顶部导航 ============ */
  .site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);transition:box-shadow .22s var(--ease),background .22s var(--ease);}
  .site-head.is-scrolled{box-shadow:0 10px 28px -20px rgba(23,16,46,.55);background:rgba(255,255,255,.98);}
  .head-inner{display:flex;align-items:center;gap:20px;min-height:74px;}
  .logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand-600) 0%,var(--brand-800) 100%);
    color:#fff;font-weight:800;font-size:18px;box-shadow:0 8px 20px -10px rgba(108,60,240,.8);}
  .logo-text{display:flex;flex-direction:column;line-height:1.25;}
  .logo-text strong{font-size:15px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
  .logo-text span{font-size:11px;color:var(--muted-2);letter-spacing:.08em;}
  .nav-links{display:none;gap:28px;margin-left:auto;align-items:center;}
  .nav-links a{position:relative;font-size:15px;font-weight:500;color:#3A3350;padding:6px 0;transition:color .2s var(--ease);}
  .nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
    background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
  .nav-links a:hover{color:var(--brand-600);}
  .nav-links a:hover::after,.nav-links a[aria-current="page"]::after{transform:scaleX(1);}
  .nav-links a[aria-current="page"]{color:var(--brand-600);font-weight:600;}
  .head-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
  .head-actions .btn-ghost{display:none;}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;
    border-radius:var(--r-btn);font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 26px -14px rgba(108,60,240,.85);}
  .btn-primary:hover{background:var(--brand-500);transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(108,60,240,.95);}
  .btn-primary:active{transform:translateY(0);background:var(--brand-700);}
  .btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--line);}
  .btn-ghost:hover{background:var(--brand-50);border-color:rgba(108,60,240,.4);}
  .btn-lg{min-height:50px;padding:0 26px;font-size:15px;}

  /* ============ 文章顶部 ============ */
  .article-hero{position:relative;overflow:hidden;padding:34px 0 52px;
    background:linear-gradient(135deg,#17102E 0%,#221A3D 42%,#451FA0 100%);}
  .article-hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:24px 24px;}
  .hero-glow{position:absolute;inset:0;pointer-events:none;
    background:radial-gradient(620px 300px at 12% 18%,rgba(20,216,180,.20),transparent 70%),
               radial-gradient(560px 320px at 88% 86%,rgba(255,122,61,.14),transparent 72%);}
  .article-hero .container{position:relative;z-index:1;}

  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:20px;}
  .crumb a{color:rgba(255,255,255,.88);transition:color .2s var(--ease);}
  .crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .crumb .sep{color:rgba(255,255,255,.34);}
  .crumb .cur{max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.62);}

  .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;}
  .badge-soft{background:var(--accent-soft);color:#8DF6E2;border:1px solid rgba(20,216,180,.32);}
  .badge-brand{background:var(--brand-50);color:var(--brand-700);border:1px solid rgba(108,60,240,.18);}
  .badge-ember{background:rgba(255,122,61,.14);color:#FF9A67;border:1px solid rgba(255,122,61,.32);}

  .article-hero h1{margin:16px 0 20px;max-width:920px;font-size:29px;line-height:1.38;font-weight:800;color:#fff;
    text-shadow:0 2px 8px rgba(0,0,0,.25);}
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:rgba(255,255,255,.76);}
  .meta-row .m{display:inline-flex;align-items:center;gap:6px;}
  .meta-row .m svg{opacity:.85;}
  .tnum{font-variant-numeric:tabular-nums;}
  .hero-divider{margin-top:26px;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.28),rgba(255,255,255,0));}

  /* ============ 正文 ============ */
  .article-main{padding:34px 0 10px;}
  .article-shell{max-width:760px;margin:0 auto;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-img);padding:26px 20px;box-shadow:var(--sh-1);}
  .article-body{font-size:16px;line-height:1.9;color:#241D3B;overflow-wrap:anywhere;}
  .article-body p{margin:0 0 20px;}
  .article-body h2{position:relative;margin:40px 0 16px;padding-left:14px;font-size:24px;line-height:1.5;font-weight:800;color:var(--ink);}
  .article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
    background:linear-gradient(180deg,var(--brand-600),var(--accent));}
  .article-body h3{margin:28px 0 12px;font-size:19px;font-weight:700;color:var(--ink);}
  .article-body h4{margin:22px 0 10px;font-size:17px;font-weight:700;color:var(--ink-700);}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
  .article-body ul li{list-style:disc;margin:8px 0;}
  .article-body ol li{list-style:decimal;margin:8px 0;}
  .article-body ul li::marker{color:var(--brand-600);}
  .article-body ol li::marker{color:var(--brand-600);font-weight:700;}
  .article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--brand-50);
    border-left:3px solid var(--brand-600);border-radius:0 var(--r-btn) var(--r-btn) 0;color:#3A3350;}
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:12px;margin:24px auto;}
  .article-body figure{margin:24px 0;}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
  .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7;}
  .article-body th{background:var(--paper);font-weight:700;color:var(--ink);}
  .article-body pre{background:var(--ink);color:#EDE9FB;padding:16px 18px;border-radius:12px;overflow-x:auto;
    font-size:14px;line-height:1.7;margin:0 0 20px;}
  .article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
  .article-body p code,.article-body li code{background:var(--brand-50);color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:.9em;}
  .article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;transition:color .2s var(--ease);}
  .article-body a:hover{color:var(--brand-700);}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
  .article-body>*:first-child{margin-top:0;}

  .empty-state{border:1px dashed var(--brand-200);background:var(--brand-50);border-radius:var(--r-card);
    padding:38px 22px;text-align:center;}
  .empty-state .es-icon{width:46px;height:46px;margin:0 auto 14px;border-radius:14px;display:grid;place-items:center;
    background:#fff;border:1px solid var(--line);color:var(--brand-600);}
  .empty-state h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:8px;}
  .empty-state p{font-size:14px;color:var(--muted);max-width:420px;margin:0 auto 20px;}

  /* ============ 通用板块标题 ============ */
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
  .sec-head h2{font-size:22px;font-weight:800;color:var(--ink);}
  .sec-head p{font-size:14px;color:var(--muted);margin-top:6px;}
  .sec-link{font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap;transition:color .2s var(--ease),transform .2s var(--ease);}
  .sec-link:hover{color:var(--brand-700);transform:translateX(2px);}

  /* ============ 文末转化 ============ */
  .cta-band{padding:34px 0 6px;}
  .cta-inner{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px;
    background:linear-gradient(135deg,#F1ECFE 0%,#F7F6FC 100%);border:1px solid var(--brand-100);
    border-radius:var(--r-img);padding:26px 22px;}
  .cta-inner h2{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:8px;}
  .cta-inner p{font-size:14px;color:var(--muted);}

  /* ============ 相关推荐 ============ */
  .reco{padding:44px 0 8px;}
  .reco-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  .rc-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
  .rc-card:hover{transform:translateY(-4px);border-color:rgba(108,60,240,.4);box-shadow:var(--sh-2);}
  .rc-thumb{aspect-ratio:16/10;overflow:hidden;background:#EFEBFA;}
  .rc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
  .rc-card:hover .rc-thumb img{transform:scale(1.05);}
  .rc-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px;}
  .rc-title{font-size:16px;font-weight:700;line-height:1.6;color:var(--ink);}
  .rc-desc{font-size:14px;line-height:1.75;color:var(--muted);}
  .rc-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted-2);}
  .rc-link{font-size:13px;font-weight:600;color:var(--brand-600);}

  /* ============ 上下篇 / 返回 ============ */
  .pn{padding:32px 0 56px;}
  .pn-grid{max-width:760px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:16px;}
  .pn-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:18px 20px;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
  .pn-card:hover{transform:translateY(-2px);border-color:rgba(108,60,240,.4);box-shadow:var(--sh-2);}
  .pn-label{font-size:12px;font-weight:600;color:var(--muted-2);letter-spacing:.06em;margin-bottom:8px;display:block;}
  .pn-title{font-size:15px;font-weight:700;color:var(--ink);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .back-line{max-width:760px;margin:18px auto 0;}
  .back-line a{font-size:14px;font-weight:600;color:var(--brand-600);transition:color .2s var(--ease);}
  .back-line a:hover{color:var(--brand-700);}

  /* ============ 页脚 ============ */
  .site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:54px 0 30px;margin-top:24px;}
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  .site-foot .logo-text strong{color:#fff;}
  .site-foot .logo-text span{color:rgba(255,255,255,.5);}
  .foot-brand p{margin-top:14px;max-width:290px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
  .foot-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
  .foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
  .foot-col li{list-style:none;}
  .foot-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease),transform .2s var(--ease);}
  .foot-col a:hover{color:#fff;transform:translateX(2px);}
  .foot-contact li{font-size:13px;color:rgba(255,255,255,.6);line-height:1.8;}
  .foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.48);}

  /* ============ 移动底部 Tab ============ */
  .tabbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:repeat(4,1fr);
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 22px -16px rgba(23,16,46,.55);
    padding-bottom:env(safe-area-inset-bottom);}
  .tabbar a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-height:62px;font-size:11px;color:rgba(23,16,46,.6);transition:color .2s var(--ease);}
  .tabbar a::before{content:"";position:absolute;top:0;left:26%;right:26%;height:2px;border-radius:0 0 3px 3px;
    background:var(--brand-600);transform:scaleX(0);transition:transform .22s var(--ease);}
  .tabbar a.is-active{color:var(--brand-600);font-weight:600;}
  .tabbar a.is-active::before{transform:scaleX(1);}
  .tabbar a:active{background:var(--brand-50);}
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom));}

  /* ============ 断点 ============ */
  @media (min-width:640px){
    .article-shell{padding:34px 34px;}
    .reco-grid{grid-template-columns:repeat(2,1fr);}
    .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 34px;}
    .cta-inner .cta-text{max-width:460px;}
    .article-hero{padding:44px 0 62px;}
    .article-hero h1{font-size:36px;}
    .article-body h2{font-size:26px;}
  }
  @media (min-width:768px){
    .foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;}
    .pn-grid{grid-template-columns:1fr 1fr;}
    .head-actions .btn-ghost{display:inline-flex;}
    .article-main{padding:44px 0 12px;}
    .cta-band{padding:42px 0 8px;}
  }
  @media (min-width:1024px){
    .nav-links{display:flex;}
    .head-actions{margin-left:0;}
    .tabbar{display:none;}
    body{padding-bottom:0;}
    .reco-grid{grid-template-columns:repeat(3,1fr);}
    .article-shell{padding:44px 48px;}
    .article-hero{padding:54px 0 72px;}
    .article-hero h1{font-size:44px;}
    .reco{padding:56px 0 8px;}
    .pn{padding:40px 0 72px;}
  }
  @media (min-width:1280px){
    .container{max-width:1200px;}
  }
  @media (max-width:639px){
    .logo-text strong{font-size:14px;}
    .logo-text span{display:none;}
    .head-inner{min-height:66px;}
    .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
    .article-body pre{font-size:13px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category1 */
:root{
  --brand-50:#F2EDFE;
  --brand-100:#E4DBFD;
  --brand-200:#CBBBFB;
  --brand-500:#7E55F3;
  --brand-600:#6C3CF0;
  --brand-700:#5527C9;
  --accent:#14D8B4;
  --ember:#FF7A3D;
  --ink:#17102E;
  --ink-2:#241A44;
  --paper:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1526;
  --muted:#5A5470;
  --line:#E8E5F3;
  --line-soft:#F0EDF8;
  --r-card:16px;
  --r-img:20px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(23,16,46,.06);
  --sh-2:0 10px 30px -14px rgba(108,60,240,.30);
  --sh-3:0 0 0 1px rgba(108,60,240,.20), 0 14px 34px -16px rgba(108,60,240,.42);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(108,60,240,.18);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:#D8D2EE;border-radius:99px;border:2px solid var(--paper);}
::-webkit-scrollbar-thumb:hover{background:var(--brand-200);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.reading{max-width:760px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
  color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:0;
  box-shadow:var(--sh-2);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:15px;font-weight:800;letter-spacing:-.01em;}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.02em;}
.nav-links{display:none;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;transition:color .2s ease-out;min-height:44px;display:inline-flex;align-items:center;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a[aria-current="page"]{color:var(--brand-700);font-weight:700;}
.nav-links a[aria-current="page"]::after{transform:scaleX(1);}
.head-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-links + .head-actions{margin-left:0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out, background-color .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out, color .2s ease-out;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{background:var(--brand-500);transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);background:var(--brand-700);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:rgba(108,60,240,.35);}
.btn-ghost:hover{background:var(--brand-50);border-color:rgba(108,60,240,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-light{background:rgba(255,255,255,.94);color:var(--ink);}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -16px rgba(0,0,0,.55);}
.btn-outline-light{background:transparent;color:#EDE9FF;border-color:rgba(237,233,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:rgba(237,233,255,.8);transform:translateY(-1px);}

/* ---------- Badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.01em;
  background:var(--brand-50);color:var(--brand-700);white-space:nowrap;
}
.badge-ember{background:rgba(255,122,61,.13);color:#C94A16;}
.badge-accent{background:rgba(20,216,180,.16);color:#0A7F69;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;color:var(--muted);background:#fff;border:1px solid var(--line);
}

/* ---------- Section shells ---------- */
.section{padding:40px 0;}
.sec-head{margin-bottom:26px;}
.sec-head h2{font-size:24px;font-weight:800;letter-spacing:-.01em;line-height:1.4;}
.sec-head p{margin-top:8px;color:var(--muted);font-size:15px;}
.sec-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;}
.link-more{
  font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;
  min-height:44px;transition:gap .2s ease-out,color .2s ease-out;
}
.link-more:hover{gap:10px;color:var(--brand-500);}
.bg-white{background:#fff;}
.bg-paper{background:var(--paper);}
.bg-ink{background:var(--ink);color:#EDE9FF;}

/* ---------- Breadcrumb ---------- */
.crumb{padding:16px 0 0;font-size:13px;color:var(--muted);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li:not(:last-child)::after{content:"/";color:#C3BDD8;}
.crumb a{transition:color .2s ease-out;}
.crumb a:hover{color:var(--brand-700);}
.crumb li[aria-current="page"] span{color:var(--text);font-weight:600;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(circle at 88% 18%, rgba(20,216,180,.16), transparent 46%),
    radial-gradient(circle at 6% 88%, rgba(255,122,61,.14), transparent 44%),
    linear-gradient(135deg,#17102E 0%,#2A1A5E 52%,#5527C9 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:24px 24px;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;gap:32px;padding:44px 0 52px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(237,233,255,.28);
  font-size:12.5px;letter-spacing:.06em;color:#D9D1FF;
}
.hero h1{
  margin-top:16px;font-size:30px;line-height:1.32;font-weight:800;letter-spacing:-.01em;
  text-shadow:0 2px 10px rgba(0,0,0,.28);max-width:560px;
}
.hero-lead{margin-top:14px;font-size:17px;font-weight:600;color:#F3F0FF;max-width:560px;}
.hero-text{margin-top:12px;font-size:15.5px;line-height:1.95;color:rgba(237,233,255,.82);max-width:560px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-media{position:relative;}
.hero-media figure{
  border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(237,233,255,.2);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.7);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-float{
  position:absolute;left:16px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  background:#fff;color:var(--ink);border-radius:14px;padding:12px 16px;
  box-shadow:0 18px 40px -20px rgba(23,16,46,.6);
}
.hero-float strong{font-size:20px;font-weight:800;color:var(--brand-700);}
.hero-float span{font-size:12.5px;color:var(--muted);line-height:1.5;display:block;}

/* ---------- Cards grid ---------- */
.card-grid{display:grid;gap:20px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,60,240,.4);}
.card-media{background:var(--brand-50);overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease-out;}
.card:hover .card-media img{transform:scale(1.05);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;font-weight:700;line-height:1.5;letter-spacing:-.01em;}
.card-desc{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--muted);
}
.card-link{font-size:13.5px;font-weight:600;color:var(--brand-700);transition:color .2s ease-out;}
.card:hover .card-link{color:var(--brand-500);}
.card-wide{
  grid-column:1/-1;display:flex;flex-direction:column;gap:16px;
  padding:24px;border-radius:var(--r-card);
  background:linear-gradient(120deg,var(--brand-50),#fff 62%);
  border:1px dashed var(--brand-200);
}
.card-wide h3{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.card-wide p{font-size:14.5px;color:var(--muted);max-width:640px;}
.card-wide .row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;counter-reset:step;}
.step{
  display:flex;gap:16px;padding:22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.05);border:1px solid rgba(237,233,255,.16);
  transition:background-color .22s ease-out, transform .22s ease-out, border-color .22s ease-out;
}
.step:hover{background:rgba(255,255,255,.09);border-color:rgba(20,216,180,.45);transform:translateY(-2px);}
.step-no{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#0E0A1F;background:var(--accent);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:700;color:#fff;}
.step p{margin-top:6px;font-size:14.5px;line-height:1.85;color:rgba(237,233,255,.78);}

/* ---------- Checklist ---------- */
.check-list{display:grid;gap:14px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;padding:20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:box-shadow .22s ease-out, border-color .22s ease-out;
}
.check-item:hover{box-shadow:var(--sh-2);border-color:rgba(108,60,240,.3);}
.check-ico{
  flex-shrink:0;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:rgba(20,216,180,.16);color:#0A7F69;font-weight:800;font-size:14px;
}
.check-item h3{font-size:16px;font-weight:700;}
.check-item p{margin-top:4px;font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- Advice cards ---------- */
.advice-grid{display:grid;gap:18px;}
.advice{
  padding:24px;border-radius:var(--r-card);background:#fff;border:1px solid var(--line);
  transition:transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
}
.advice:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,60,240,.35);}
.advice h3{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.advice p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.advice .tag{margin-top:16px;}

/* ---------- Cross recommend ---------- */
.rec-grid{display:grid;gap:18px;}
.rec{
  display:flex;gap:16px;padding:18px;border-radius:var(--r-card);background:#fff;
  border:1px solid var(--line);align-items:center;
  transition:transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
}
.rec:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,60,240,.4);}
.rec img{width:96px;height:72px;border-radius:12px;object-fit:cover;flex-shrink:0;}
.rec h3{font-size:16px;font-weight:700;}
.rec p{margin-top:4px;font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec .go{margin-top:6px;font-size:13px;font-weight:600;color:var(--brand-700);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .22s ease-out, box-shadow .22s ease-out;
}
.faq-item:hover{border-color:var(--brand-200);}
.faq-item.open{border-color:var(--brand-200);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);min-height:44px;
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand-600);transform:scaleY(0);transform-origin:center;
  transition:transform .22s ease-out;
}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand-700);font-size:16px;font-weight:700;line-height:1;
  transition:background-color .22s ease-out,color .22s ease-out;
}
.faq-item.open .faq-sign{background:var(--brand-600);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a p{padding:0 20px 20px 20px;font-size:14.5px;color:var(--muted);line-height:1.9;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;color:#fff;
  background:
    radial-gradient(circle at 78% 22%, rgba(20,216,180,.2), transparent 48%),
    radial-gradient(circle at 10% 90%, rgba(255,122,61,.16), transparent 46%),
    linear-gradient(135deg,#17102E,#3A2280);
  padding:36px 24px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.45;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:24px;font-weight:800;letter-spacing:-.01em;line-height:1.4;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(237,233,255,.82);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}

/* ---------- Form ---------- */
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;font-weight:600;color:rgba(237,233,255,.86);}
.field input,.field select{
  height:48px;padding:0 14px;border-radius:12px;border:1px solid rgba(237,233,255,.28);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;
  transition:border-color .2s ease-out, box-shadow .2s ease-out, background-color .2s ease-out;
}
.field input::placeholder{color:rgba(237,233,255,.5);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-500);background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(20,216,180,.28);
}
.field select option{color:var(--ink);}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink);color:rgba(237,233,255,.72);margin-top:8px;}
.foot-grid{display:grid;gap:32px;padding:48px 0 32px;}
.foot-brand .logo-text strong{color:#fff;}
.foot-brand .logo-text span{color:rgba(237,233,255,.6);}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(237,233,255,.66);max-width:280px;}
.foot-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em;margin-bottom:14px;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:rgba(237,233,255,.7);display:inline-block;transition:color .2s ease-out,transform .2s ease-out;}
.foot-col a:hover{color:#fff;transform:translateX(2px);}
.foot-contact li{font-size:13.5px;color:rgba(237,233,255,.68);line-height:1.8;}
.foot-bottom{
  border-top:1px solid rgba(237,233,255,.14);
  padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:12px;color:rgba(237,233,255,.5);
}

/* ---------- Mobile tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.97);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -12px rgba(23,16,46,.25);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:60px;font-size:11.5px;color:rgba(23,16,46,.6);
  transition:color .2s ease-out;
}
.mobile-tab a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tab a[aria-current="page"]{color:var(--brand-600);font-weight:600;}
.mobile-tab a[aria-current="page"]::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:2px;border-radius:0 0 3px 3px;background:var(--brand-600);
}

/* ---------- Animation ---------- */
.fade-up{opacity:0;transform:translateY(14px);}
.fade-up.in{opacity:1;transform:none;transition:opacity .5s ease-out, transform .5s ease-out;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .fade-up{opacity:1;transform:none;}
}

/* ---------- Responsive ---------- */
@media (min-width:640px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .check-list{grid-template-columns:repeat(2,1fr);}
  .advice-grid{grid-template-columns:repeat(2,1fr);}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .hero h1{font-size:36px;}
  .sec-head h2{font-size:26px;}
  .cta-band{padding:44px 36px;}
  .container{padding:0 24px;}
}
@media (min-width:768px){
  .section{padding:64px 0;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
  .hero-grid{padding:56px 0 64px;}
}
@media (min-width:1024px){
  body{padding-bottom:0;}
  .nav-links{display:flex;}
  .head-inner{min-height:76px;}
  .head-actions{margin-left:0;}
  .section{padding:96px 0;}
  .hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:48px;padding:72px 0 84px;}
  .hero h1{font-size:44px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .advice-grid{grid-template-columns:repeat(3,1fr);}
  .rec-grid{grid-template-columns:repeat(3,1fr);}
  .mobile-tab{display:none;}
  .sec-head h2{font-size:30px;}
}
@media (max-width:639px){
  .head-actions .btn-ghost{display:none;}
  .hero h1{font-size:28px;}
  .hero-float{left:auto;right:12px;bottom:-14px;padding:10px 14px;}
  .card-wide{padding:20px;}
}

/* roulang page: category2 */
:root{
  --brand-50:#F1EBFE;
  --brand-100:#E3D9FD;
  --brand-200:#C9B4FB;
  --brand-500:#8B63F5;
  --brand-600:#6C3CF0;
  --brand-700:#5426CE;
  --brand-800:#3F1B9E;
  --accent:#14D8B4;
  --accent-600:#0FA98D;
  --ember:#FF7A3D;
  --ink:#17102E;
  --paper:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1526;
  --muted:#5A5470;
  --line:#E8E5F3;
  --line-soft:#F0EDF8;
  --radius-card:16px;
  --radius-banner:20px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(23,16,46,.06);
  --shadow-2:0 10px 30px -14px rgba(108,60,240,.30);
  --shadow-3:0 0 0 1px rgba(108,60,240,.20), 0 18px 44px -20px rgba(108,60,240,.38);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){ body{ padding-bottom:0; } }
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#EFECF8}
::-webkit-scrollbar-thumb{background:#CFC6EC;border-radius:999px;border:2px solid #EFECF8}
::-webkit-scrollbar-thumb:hover{background:var(--brand-500)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.reading{max-width:760px}

/* 顶部提示条 */
.ticker{background:var(--ink);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.ticker.is-hidden{display:none}
.ticker-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:10px 20px;min-height:52px}
.ticker p{display:flex;align-items:center;gap:8px;font-size:14px;letter-spacing:.01em;flex-wrap:wrap}
.ticker-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(20,216,180,.18);flex:none}
#cdText{color:var(--accent);font-weight:800;letter-spacing:.02em}
.ticker-actions{display:flex;align-items:center;gap:10px}
.ticker-close{width:32px;height:32px;border-radius:10px;color:rgba(255,255,255,.7);font-size:20px;line-height:1;display:grid;place-items:center;transition:background .18s ease-out,color .18s ease-out}
.ticker-close:hover{background:rgba(255,255,255,.12);color:#fff}
@media (max-width:639px){ .ticker-inner{min-height:auto} }

/* 顶部导航 */
.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out,border-color .22s ease-out}
.site-head.is-scrolled{box-shadow:0 10px 30px -22px rgba(23,16,46,.65);border-color:transparent}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand-700),var(--brand-600));color:#fff;font-weight:800;font-size:18px;box-shadow:var(--shadow-2);flex:none}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-text span{font-size:12px;color:var(--muted)}
@media (max-width:379px){ .logo-text strong{font-size:14px;white-space:normal} }
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:26px}
  .nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:8px 0;transition:color .18s ease-out}
  .nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out}
  .nav-links a:hover{color:var(--brand-700)}
  .nav-links a:hover::after,.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
  .nav-links a[aria-current="page"]{color:var(--brand-700);font-weight:700}
}
.head-actions{display:flex;align-items:center;gap:10px;flex-wrap:nowrap}
.head-actions .btn{padding:0 14px;font-size:14px}
.head-actions .btn-ghost{display:none}
@media (min-width:768px){ .head-actions .btn-ghost{display:inline-flex} }

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.btn-sm{min-height:36px;padding:0 14px;font-size:13px;border-radius:10px}
.btn-lg{min-height:50px;padding:0 26px;font-size:16px}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{background:var(--brand-500);transform:translateY(-1px);box-shadow:0 16px 36px -14px rgba(108,60,240,.55)}
.btn-primary:active{transform:translateY(0);background:var(--brand-700)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50);border-color:var(--brand-200);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0);background:var(--brand-100)}
.btn-accent{background:var(--accent);color:#08211C}
.btn-accent:hover{background:#2AE3C3;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-50)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:var(--brand-50);transform:translateY(-1px)}

/* 标签 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6}
.badge-brand{background:var(--brand-50);color:var(--brand-700)}
.badge-ember{background:rgba(255,122,61,.14);color:#C24E13}
.badge-accent{background:rgba(20,216,180,.16);color:#0B7C68}
.badge-line{border:1px solid var(--line);color:var(--muted)}

/* Hero */
.hero-c2{position:relative;overflow:hidden;color:#fff;padding:52px 0 44px;background:linear-gradient(135deg,#17102E 0%,#3F1B9E 58%,#5426CE 100%)}
.hero-c2::before,.hero-c2::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero-c2::before{width:520px;height:520px;top:-220px;right:-140px;background:radial-gradient(circle,rgba(20,216,180,.28),transparent 68%)}
.hero-c2::after{width:460px;height:460px;bottom:-240px;left:-160px;background:radial-gradient(circle,rgba(255,122,61,.22),transparent 68%)}
.hero-c2 .container{position:relative;z-index:1}
.hero-head{max-width:820px;margin:0 auto;text-align:center}
.hero-head h1{font-size:28px;line-height:1.35;margin:18px 0 14px;text-shadow:0 2px 8px rgba(0,0,0,.25)}
@media (min-width:768px){ .hero-head h1{font-size:40px} }
@media (min-width:1024px){ .hero-head h1{font-size:46px} }
.hero-sub{font-size:16px;color:rgba(255,255,255,.82);max-width:640px;margin:0 auto}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
.hero-banner{position:relative;margin:34px 0 0;border-radius:var(--radius-banner);overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.6);border:1px solid rgba(255,255,255,.14)}
.hero-banner img{width:100%;height:auto;aspect-ratio:1200/560;object-fit:cover}
.hero-banner figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:rgba(255,255,255,.9);background:linear-gradient(180deg,transparent,rgba(23,16,46,.86))}
.hero-stats{display:grid;gap:12px;grid-template-columns:1fr;margin-top:20px}
@media (min-width:640px){ .hero-stats{grid-template-columns:repeat(3,1fr);gap:16px} }
.hero-stats li{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:2px;backdrop-filter:blur(6px)}
.hero-stats strong{font-size:22px;font-weight:800;color:#fff;letter-spacing:.01em}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.7)}

/* 区块 */
.sec{padding:56px 0}
@media (min-width:768px){ .sec{padding:76px 0} }
@media (min-width:1024px){ .sec{padding:96px 0} }
.sec-white{background:#fff}
.sec-paper{background:var(--paper)}
.sec-ink{background:var(--ink);color:rgba(255,255,255,.76)}
.sec-ink h2,.sec-ink h3,.sec-ink strong{color:#fff}
.sec-ink .muted,.sec-ink p{color:rgba(255,255,255,.72)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:24px;margin-bottom:12px}
@media (min-width:768px){ .sec-head h2{font-size:30px} }
.sec-head p{color:var(--muted);font-size:16px}
.sec-head-center{max-width:760px;margin:0 auto 32px;text-align:center}

/* 卖点阶梯 */
.adv-wrap{display:grid;gap:22px}
@media (min-width:1024px){ .adv-wrap{grid-template-columns:minmax(0,1.02fr) minmax(0,1.42fr);gap:26px;align-items:start;padding-bottom:40px} }
.adv-lead{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:box-shadow .22s ease-out,border-color .22s ease-out}
.adv-lead:hover{box-shadow:var(--shadow-2);border-color:rgba(108,60,240,.34)}
.adv-lead img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.adv-lead-body{padding:22px 22px 24px}
.adv-lead-body h3{font-size:20px;margin:12px 0 10px}
.adv-lead-body > p{color:var(--muted);font-size:15px}
.adv-points{margin-top:18px;display:grid;gap:12px}
.adv-points li{display:flex;gap:10px;font-size:14px;color:var(--text)}
.adv-points li::before{content:"";width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--brand-600);flex:none}
.adv-side{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){ .adv-side{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .adv-side > *:nth-child(even){transform:translateY(38px)} }
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(108,60,240,.36)}
.adv-num{font-size:13px;font-weight:800;color:var(--brand-600);letter-spacing:.08em}
.adv-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-50);color:var(--brand-700);margin:12px 0 14px}
.adv-icon svg{width:22px;height:22px}
.adv-card h3{font-size:17px;margin-bottom:8px}
.adv-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* 活动卡片网格 */
.act-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){ .act-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .act-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px} }
.act-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.act-card:hover{transform:translateY(-4px);border-color:rgba(108,60,240,.4);box-shadow:var(--shadow-3)}
.act-thumb{overflow:hidden;background:var(--line-soft)}
.act-thumb img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease-out}
.act-card:hover .act-thumb img{transform:scale(1.04)}
.act-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.act-body h3{font-size:18px;line-height:1.5}
.act-body > p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.act-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px}
.act-meta span{display:inline-flex;align-items:center;gap:6px}
.act-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-700);min-height:44px}
.act-link span{transition:transform .18s ease-out}
.act-link:hover span{transform:translateX(3px)}
.act-link:hover{color:var(--brand-600)}
.act-cta-band{grid-column:1/-1;background:linear-gradient(120deg,#2C1270,#6C3CF0);color:#fff;border-radius:var(--radius-banner);padding:26px;display:flex;flex-direction:column;gap:16px;align-items:flex-start;box-shadow:var(--shadow-2)}
@media (min-width:768px){ .act-cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:28px 32px} }
.act-cta-band strong{display:block;font-size:19px;margin-bottom:6px}
.act-cta-band p{font-size:14px;color:rgba(255,255,255,.8)}

/* 流程 */
.flow-grid{display:grid;gap:20px;grid-template-columns:1fr;counter-reset:step}
@media (min-width:640px){ .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .flow-grid{grid-template-columns:repeat(4,minmax(0,1fr))} }
.flow-item{position:relative;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);padding:22px;transition:background .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
.flow-item:hover{background:rgba(255,255,255,.09);border-color:rgba(20,216,180,.5);transform:translateY(-4px)}
.flow-item .step{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.1em}
.flow-item h3{font-size:17px;margin:10px 0 8px}
.flow-item p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}

/* 说明小节 */
.note-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:1024px){ .note-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px} }
.note-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1)}
.note-card h3{font-size:18px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.note-card h3 i{width:6px;height:20px;border-radius:3px;background:var(--brand-600);display:inline-block;flex:none}
.note-list{display:grid;gap:12px}
.note-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.8}
.note-list li b{color:var(--brand-700);font-weight:700;flex:none;font-variant-numeric:tabular-nums}

/* 推荐 */
.rec-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){ .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .rec-grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
.rec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(108,60,240,.4)}
.rec-card img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.rec-body{padding:18px 20px 20px}
.rec-body h3{font-size:17px;margin:10px 0 8px;line-height:1.55}
.rec-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item[data-open="true"]{border-color:var(--brand-200);box-shadow:var(--shadow-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 20px;font-size:16px;font-weight:700;min-height:56px;cursor:pointer;transition:color .18s ease-out}
.faq-q:hover{color:var(--brand-700)}
.faq-item[data-open="true"] .faq-q{color:var(--brand-700)}
.faq-sign{flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:16px;font-weight:800;line-height:1;transition:background .2s ease-out,color .2s ease-out}
.faq-item[data-open="true"] .faq-sign{background:var(--brand-600);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a-inner{padding:0 20px 20px 20px;font-size:15px;color:var(--muted);border-left:3px solid var(--brand-600);margin-left:0}
.faq-item[data-open="false"] .faq-a-inner{border-left-color:transparent}

/* 表单 */
.signup-wrap{display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:1024px){ .signup-wrap{grid-template-columns:1fr 1.1fr;gap:48px;align-items:center} }
.signup-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-banner);padding:24px;box-shadow:var(--shadow-2);display:grid;gap:16px}
@media (min-width:768px){ .signup-form{padding:28px} }
.field{display:grid;gap:8px}
.field label{font-size:13px;font-weight:700;color:var(--muted)}
.field input,.field select{height:48px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#FCFBFE;padding:0 14px;font-size:15px;color:var(--text);width:100%;transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;appearance:none}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px}
.field input::placeholder{color:#ADA6C2}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(108,60,240,.14);background:#fff}
.form-note{font-size:12px;color:var(--muted)}
.form-done{display:none;background:rgba(20,216,180,.12);border:1px solid rgba(20,216,180,.45);color:#0B7C68;border-radius:var(--radius-btn);padding:12px 14px;font-size:14px;font-weight:600}
.form-done.is-on{display:block}
.cta-copy h2{font-size:24px;margin-bottom:14px}
@media (min-width:768px){ .cta-copy h2{font-size:32px} }
.cta-copy p{color:var(--muted);margin-bottom:20px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--muted)}
.cta-points li::before{content:"";width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--accent);flex:none}

/* 底部 CTA 条 */
.bottom-cta{background:linear-gradient(120deg,#17102E,#3F1B9E 60%,#5426CE);color:#fff;border-radius:var(--radius-banner);padding:28px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow-2)}
@media (min-width:768px){ .bottom-cta{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 40px} }
.bottom-cta h2{font-size:22px;margin-bottom:8px}
@media (min-width:768px){ .bottom-cta h2{font-size:26px} }
.bottom-cta p{font-size:14px;color:rgba(255,255,255,.78)}

/* 页脚 */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:0}
.site-foot .logo-text strong{color:#fff}
.site-foot .logo-text span{color:rgba(255,255,255,.55)}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){ .foot-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px} }
.foot-brand p{margin-top:14px;font-size:14px;max-width:300px;color:rgba(255,255,255,.62)}
.foot-col h4{font-size:15px;margin-bottom:14px;color:#fff}
.foot-col ul{display:grid;gap:10px;font-size:14px}
.foot-col a{display:inline-block;transition:color .18s ease-out,transform .18s ease-out}
.foot-col a:hover{color:var(--accent);transform:translateX(2px)}
.foot-contact li{color:rgba(255,255,255,.62);font-size:14px}
.foot-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.5)}

/* 移动底部 Tab */
.mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 30px -22px rgba(23,16,46,.7);padding-bottom:env(safe-area-inset-bottom)}
@media (min-width:1024px){ .mobile-tab{display:none} }
.tab-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:60px;font-size:11px;color:rgba(90,84,112,.92);transition:color .18s ease-out}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tab-item:hover{color:var(--brand-600)}
.tab-item[aria-current="page"]{color:var(--brand-600);font-weight:700}
.tab-item[aria-current="page"]::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;border-radius:0 0 3px 3px;background:var(--brand-600)}

/* 入场动画 */
.fade-up{opacity:0;transform:translateY(14px)}
.fade-up.is-in{opacity:1;transform:none;transition:opacity .4s ease-out,transform .4s ease-out}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand-50:#F1EDFE;
  --brand-100:#E3DBFD;
  --brand-200:#C9BAFB;
  --brand-400:#8B68F5;
  --brand-500:#7C52F3;
  --brand-600:#6C3CF0;
  --brand-700:#5A2BD8;
  --accent:#14D8B4;
  --ember:#FF7A3D;
  --ink:#17102E;
  --ink-700:#241A44;
  --paper:#F7F6FC;
  --card:#FFFFFF;
  --text:#1B1526;
  --muted:#5A5470;
  --line:#E8E5F3;
  --line-soft:#F0EDF8;
  --r-card:16px;
  --r-btn:12px;
  --r-banner:20px;
  --sh-1:0 1px 2px rgba(23,16,46,.06);
  --sh-2:0 10px 30px -14px rgba(108,60,240,.30);
  --sh-3:0 0 0 1px rgba(108,60,240,.20), 0 10px 30px -14px rgba(108,60,240,.30);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.32}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
::selection{background:rgba(108,60,240,.18)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--paper)}
::-webkit-scrollbar-thumb{background:rgba(108,60,240,.28);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(108,60,240,.42)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 顶部提示条 + 导航 ============ */
.site-head{position:sticky;top:0;z-index:60}
.top-note{background:var(--ink);color:#EDE9FB}
.note-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:42px;padding-top:6px;padding-bottom:6px}
.note-text{display:flex;align-items:center;gap:10px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.82)}
.note-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(20,216,180,.18);flex:none}
.note-actions{display:flex;align-items:center;gap:10px;flex:none}
.btn-mini{display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 14px;border-radius:999px;background:var(--brand-600);color:#fff;font-size:12.5px;font-weight:600;transition:background-color .18s ease-out,transform .18s ease-out}
.btn-mini:hover{background:var(--brand-500);transform:translateY(-1px)}
.note-close{width:30px;height:30px;border-radius:50%;color:rgba(255,255,255,.6);font-size:18px;line-height:1;display:grid;place-items:center;transition:background-color .18s ease-out,color .18s ease-out}
.note-close:hover{background:rgba(255,255,255,.12);color:#fff}
.site-head.is-note-closed .top-note{display:none}

.nav-bar{background:#fff;border-bottom:1px solid transparent;transition:background-color .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.site-head.is-stuck .nav-bar{background:rgba(255,255,255,.84);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line);box-shadow:0 10px 30px -20px rgba(23,16,46,.45)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{width:38px;height:38px;flex:none;border-radius:12px;background:linear-gradient(135deg,var(--brand-600),var(--brand-700));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:var(--sh-2)}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:28px;font-size:15px}
.nav-links a{position:relative;padding:6px 0;font-weight:500;color:#3A3350}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--brand-700);font-weight:700}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px;flex:none}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-500);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(108,60,240,.5)}
.btn-primary:active{transform:translateY(0);background:var(--brand-700)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:rgba(108,60,240,.35)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-600);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:var(--brand-100)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-light:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ============ 面包屑 / Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:28px 0 0;background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%)}
.page-hero::before{content:"";position:absolute;inset:-160px -80px auto auto;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(108,60,240,.16),transparent 68%);pointer-events:none}
.page-hero::after{content:"";position:absolute;left:-140px;top:120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(20,216,180,.14),transparent 66%);pointer-events:none}
.crumbs{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .sep{color:#C7C2DA}
.hero-core{position:relative;max-width:820px;padding:26px 0 0}
.hero-core h1{font-size:clamp(28px,5vw,46px);font-weight:800;line-height:1.18;color:var(--ink);margin-bottom:16px}
.hero-core h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand-600),var(--brand-500));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16px;color:var(--muted);max-width:640px}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13.5px;color:#413A5C}
.hero-points span{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1)}
.hero-points i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.tag-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1)}
.tag-bar-label{font-size:13px;color:var(--muted);align-self:center;margin-right:4px}
.tag-btn{min-height:36px;padding:0 16px;border-radius:999px;background:var(--paper);border:1px solid var(--line);color:#4A4364;font-size:13.5px;font-weight:600;transition:all .18s ease-out}
.tag-btn:hover{border-color:rgba(108,60,240,.42);color:var(--brand-700);transform:translateY(-1px)}
.tag-btn.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:var(--sh-2)}
.hero-banner{position:relative;margin:34px 0 0;border-radius:var(--r-banner);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:21/8;background:var(--ink)}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.94}
.hero-banner figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 24px 20px;background:linear-gradient(180deg,rgba(23,16,46,0),rgba(23,16,46,.86));color:#fff;font-size:14px;letter-spacing:.02em}
.hero-banner figcaption strong{display:block;font-size:clamp(17px,2.4vw,21px);font-weight:800;margin-bottom:4px}

/* ============ 通用板块 ============ */
.section{padding:46px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:linear-gradient(135deg,var(--ink) 0%,#341878 100%);color:#fff}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:86px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px}
.section-title h2{font-size:clamp(22px,3vw,30px);color:var(--ink)}
.section-title p{margin-top:8px;font-size:15px;color:var(--muted);max-width:640px}
.section-dark .section-title h2{color:#fff}
.section-dark .section-title p{color:rgba(255,255,255,.72)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-600);min-height:44px}
.text-link:hover{color:var(--brand-500);gap:10px}

/* ============ 三要点 ============ */
.point-grid{display:grid;gap:20px}
@media (min-width:768px){.point-grid{grid-template-columns:repeat(3,1fr)}}
.point-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.point-card:hover{transform:translateY(-4px);border-color:rgba(108,60,240,.4);box-shadow:var(--sh-3)}
.point-num{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--brand-600);font-variant-numeric:tabular-nums}
.point-card h3{margin:12px 0 10px;font-size:18px;color:var(--ink)}
.point-card p{font-size:15px;color:var(--muted);line-height:1.85}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.card:hover{transform:translateY(-4px);border-color:rgba(108,60,240,.4);box-shadow:var(--sh-3)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s ease-out}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-50);color:var(--brand-700)}
.badge-ember{background:#FFF0E8;color:#C24E12}
.badge-accent{background:rgba(20,216,180,.14);color:#0A8A72}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{font-size:14.5px;color:var(--muted);line-height:1.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);font-size:13px;color:#7A748E}
.card-meta .date{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);min-height:34px}
.card:hover .card-link{color:var(--brand-500);gap:10px}
.strip-cta{grid-column:1/-1;position:relative;overflow:hidden;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;padding:24px 26px;border-radius:var(--r-card);background:linear-gradient(120deg,var(--ink),#3C1E82);color:#fff}
.strip-cta::after{content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(20,216,180,.28),transparent 70%)}
.strip-cta h3{font-size:18px;color:#fff;margin-bottom:6px}
.strip-cta p{font-size:14px;color:rgba(255,255,255,.75);max-width:560px;position:relative;z-index:1}
.strip-cta .btn{position:relative;z-index:1}
.empty-note{grid-column:1/-1;display:none;flex-direction:column;align-items:center;gap:12px;padding:40px 24px;border:1px dashed var(--brand-200);border-radius:var(--r-card);background:var(--brand-50);text-align:center;color:var(--muted)}
.empty-note.is-visible{display:flex}

/* ============ 查阅路径（深色） ============ */
.path-grid{display:grid;gap:18px}
@media (min-width:768px){.path-grid{grid-template-columns:repeat(3,1fr)}}
.path-card{position:relative;padding:26px 24px;border-radius:var(--r-card);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);transition:transform .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
.path-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(20,216,180,.5)}
.path-card .step-no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--accent);color:#062E27;font-weight:800;font-size:15px;font-variant-numeric:tabular-nums}
.path-card h3{margin:16px 0 10px;font-size:18px;color:#fff}
.path-card p{font-size:14.5px;color:rgba(255,255,255,.76);line-height:1.85}
.path-list{margin-top:14px;display:grid;gap:8px}
.path-list li{position:relative;padding-left:16px;font-size:14px;color:rgba(255,255,255,.66)}
.path-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:rgba(20,216,180,.8)}

/* ============ 跨分类推荐 ============ */
.related-grid{display:grid;gap:18px}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.related-card{display:block;padding:22px;border-radius:var(--r-card);background:#fff;border:1px solid var(--line);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.related-card:hover{transform:translateY(-4px);border-color:rgba(108,60,240,.4);box-shadow:var(--sh-3)}
.related-card h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.related-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.related-card .go{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;font-weight:600;color:var(--brand-600)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item:hover{border-color:var(--brand-200)}
.faq-item.is-open{border-color:var(--brand-200);box-shadow:var(--sh-1)}
.faq-q{position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;text-align:left;font-size:16px;font-weight:700;color:var(--ink);min-height:56px}
.faq-q::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-600);opacity:0;transition:opacity .2s ease-out}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-sign{flex:none;width:24px;height:24px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;transition:background-color .2s ease-out,color .2s ease-out}
.faq-item.is-open .faq-sign{background:var(--brand-600);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--muted);line-height:1.86;max-width:760px}

/* ============ CTA + 表单 ============ */
.cta-wrap{position:relative;overflow:hidden;border-radius:var(--r-banner);background:linear-gradient(135deg,var(--ink) 0%,#3A1E7A 100%);color:#fff;padding:34px 26px}
.cta-wrap::before{content:"";position:absolute;left:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(20,216,180,.24),transparent 68%)}
.cta-wrap::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.cta-inner{position:relative;z-index:1;display:grid;gap:28px}
@media (min-width:1024px){.cta-inner{grid-template-columns:1fr 1fr;align-items:center;gap:40px}.cta-wrap{padding:48px 44px}}
.cta-copy h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:12px}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.76);max-width:520px}
.cta-list{margin-top:20px;display:grid;gap:10px}
.cta-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.82)}
.cta-list i{width:18px;height:18px;border-radius:50%;background:rgba(20,216,180,.2);color:var(--accent);display:grid;place-items:center;font-size:11px;font-style:normal;font-weight:700;flex:none}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:24px}
.form-grid{display:grid;gap:16px}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr}.form-grid .field-full{grid-column:1/-1}}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:7px}
.field input,.field select{width:100%;height:48px;padding:0 14px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field select option{color:#1B1526}
.field input:hover,.field select:hover{border-color:rgba(255,255,255,.42)}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(20,216,180,.18)}
.field.has-error input,.field.has-error select{border-color:#FF6B6B;box-shadow:0 0 0 4px rgba(255,107,107,.16)}
.field .err{display:none;margin-top:6px;font-size:12px;color:#FFB4B4}
.field.has-error .err{display:block}
.form-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.7}
.form-toast{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;background:rgba(20,216,180,.16);border:1px solid rgba(20,216,180,.4);color:#B8FFF0;font-size:14px}
.form-toast.is-visible{display:block}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 24px}
.site-foot .logo-text strong{color:#fff}
.site-foot .logo-text span{color:rgba(255,255,255,.55)}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.foot-col li{margin-bottom:10px;font-size:14px}
.foot-col a{display:inline-block;transition:color .18s ease-out,transform .18s ease-out}
.foot-col a:hover{color:var(--brand-200);transform:translateX(2px)}
.foot-contact li{font-size:13.5px;color:rgba(255,255,255,.58);margin-bottom:10px}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-top:42px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:rgba(255,255,255,.48)}

/* ============ 移动底部 Tab ============ */
.tab-bar{display:none}
@media (max-width:767px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .note-text{font-size:12.5px}
  .nav-links{display:none}
  .nav-cta .btn-ghost{display:none}
  .tab-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    display:flex;align-items:stretch;justify-content:space-around;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -18px rgba(23,16,46,.5);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:64px;font-size:11.5px;color:rgba(23,16,46,.6);position:relative;transition:color .18s ease-out}
  .tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7}
  .tab-item::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:26px;height:2px;border-radius:0 0 3px 3px;background:var(--brand-600);transition:transform .2s ease-out}
  .tab-item.is-active{color:var(--brand-700);font-weight:600}
  .tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
}

/* ============ 动画 ============ */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0}
.reveal.is-in{animation:fadeUp .5s ease-out forwards}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1}
}