/* roulang page: index */
:root{
  --brand:#4A35B8;
  --brand-deep:#2E2178;
  --brand-soft:#EDE9FB;
  --jade:#12A594;
  --amber:#F5A524;
  --bg:#FAF9F6;
  --bg-alt:#F3F1FB;
  --card:#FFFFFF;
  --ink:#1B1730;
  --ink-2:#5A5573;
  --ink-3:#8B87A3;
  --inv:#F5F3FF;
  --dark:#171233;
  --dark-2:#B9B4D6;
  --line:#E6E3F0;
  --r-card:16px;
  --r-panel:20px;
  --r-sm:12px;
  --sh-sm:0 1px 2px rgba(27,23,48,.06);
  --sh-md:0 8px 24px rgba(27,23,48,.08);
  --sh-lg:0 20px 48px rgba(27,23,48,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.2px;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;}
@media (min-width:576px){.container{max-width:540px;}}
@media (min-width:768px){.container{max-width:720px;}}
@media (min-width:992px){.container{max-width:960px;}}
@media (min-width:1200px){.container{max-width:1140px;}}
@media (min-width:1400px){.container{max-width:1280px;}}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-label{
  display:inline-block;font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);background:var(--brand-soft);border-radius:6px;padding:5px 12px;margin-bottom:16px;font-weight:600;
}
.sec-title{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:24px;}
.sec-desc{font-size:16px;color:var(--ink-2);line-height:1.85;max-width:720px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:0 6px 24px rgba(27,23,48,.10);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px rgba(27,23,48,.10);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;white-space:nowrap;}
.brand:hover{color:var(--brand-deep);}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--brand);
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;
  box-shadow:0 0 0 3px rgba(74,53,184,.12);
}
.brand-text{line-height:1;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:.12em;margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:14px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:var(--ink-2);border-radius:999px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.7);
  color:var(--ink-2);display:grid;place-items:center;cursor:pointer;transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-main:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-md);color:#fff;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;
  transition:all .18s var(--ease);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.75);color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.search-bar{
  max-height:0;overflow:hidden;background:rgba(255,255,255,.98);
  border-top:1px solid transparent;transition:max-height .3s var(--ease),border-color .3s var(--ease);
}
.search-bar.is-open{max-height:120px;border-top-color:var(--line);}
.search-form{display:flex;align-items:center;gap:10px;padding:14px 0;}
.search-form i{color:var(--ink-3);}
.search-form input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 16px;background:#fff;color:var(--ink);
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(74,53,184,.12);}
.search-form button{
  height:48px;padding:0 22px;border-radius:var(--r-sm);border:none;background:var(--brand);color:#fff;font-weight:600;cursor:pointer;
}
.search-form button:hover{background:var(--brand-deep);}

.site-offcanvas{background:#fff;border-left:1px solid var(--line);}
.site-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px;}
.site-offcanvas .offcanvas-body{padding:16px 20px 32px;}
.mobile-nav li + li{border-top:1px solid var(--line);}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 4px;
  color:var(--ink);font-size:16px;
}
.mobile-nav a.active{color:var(--brand);font-weight:600;}

/* ============ Hero ============ */
.hero{
  position:relative;isolation:isolate;min-height:78vh;display:flex;align-items:center;
  padding:150px 0 96px;overflow:hidden;background:#EDE9FB;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(250,249,246,.97) 0%,rgba(250,249,246,.92) 40%,rgba(250,249,246,.52) 72%,rgba(250,249,246,.16) 100%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-deep);
  background:rgba(237,233,251,.9);border:1px solid rgba(74,53,184,.18);border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-title{font-size:46px;line-height:1.25;font-weight:800;margin-bottom:20px;}
.hero-title span{color:var(--brand);}
.hero-sub{font-size:18px;line-height:1.85;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-2);}
.hero-points i{color:var(--jade);margin-right:6px;}
.hero-panel{
  background:rgba(255,255,255,.62);
  border:1px solid rgba(255,255,255,.6);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-radius:var(--r-panel);padding:28px;box-shadow:var(--sh-lg);
}
.hero-panel h2{font-size:18px;font-weight:700;margin-bottom:6px;}
.hero-panel p{font-size:14px;color:var(--ink-2);margin-bottom:18px;}
.hero-panel li{
  display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px dashed var(--line);font-size:15px;color:var(--ink);
}
.hero-panel li:first-child{border-top:none;}
.hero-panel li i{
  width:30px;height:30px;flex:0 0 auto;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:13px;
}

/* ============ 指标看板 ============ */
.metrics{position:relative;background:var(--dark);padding:64px 0;overflow:hidden;}
.metrics::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;
}
.metrics-inner{position:relative;}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:10px 28px;border-left:1px solid rgba(255,255,255,.12);}
.metric:nth-child(4n+1){border-left:none;}
.metric-num{font-size:52px;line-height:1.1;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:0;}
.metric-num small{font-size:40%;font-weight:700;margin-left:4px;}
.metric-label{color:var(--inv);font-size:16px;font-weight:600;margin-top:10px;}
.metric-note{color:var(--dark-2);font-size:14px;line-height:1.7;margin-top:4px;}

/* ============ 服务矩阵 ============ */
.bento-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;height:100%;
  display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.bento-media{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;margin-bottom:20px;background:var(--bg-alt);}
.bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.bento-card:hover .bento-media img{transform:scale(1.03);}
.bento-icon{
  width:46px;height:46px;border-radius:12px;border:1px solid rgba(74,53,184,.24);
  color:var(--brand);display:grid;place-items:center;font-size:18px;margin-bottom:18px;background:rgba(237,233,251,.5);
}
.bento-card h3{font-size:18px;font-weight:600;margin-bottom:12px;}
.bento-card p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:18px;}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);
  background-image:linear-gradient(var(--brand),var(--brand));background-size:0% 1px;background-position:0 100%;
  background-repeat:no-repeat;transition:background-size .25s var(--ease),color .2s var(--ease);padding-bottom:2px;
}
.card-link:hover{background-size:100% 1px;color:var(--brand-deep);}
.media-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:22px;align-items:center;}
.media-row .bento-media{margin-bottom:0;aspect-ratio:16/11;}

/* ============ 对比 ============ */
.compare{
  display:grid;grid-template-columns:1fr 1fr;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;
}
.compare-col{padding:34px 32px;}
.compare-col + .compare-col{border-left:1px dashed var(--line);}
.compare-tag{
  display:inline-block;font-size:13px;font-weight:600;border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.tag-good{background:rgba(18,165,148,.12);color:#0C7A6D;border:1px solid rgba(18,165,148,.28);}
.tag-weak{background:#F1F0F5;color:var(--ink-3);border:1px solid var(--line);}
.compare-col h3{font-size:20px;font-weight:700;margin-bottom:20px;}
.check-list li{
  display:flex;align-items:flex-start;gap:12px;min-height:44px;padding:9px 0;font-size:15px;color:var(--ink-2);line-height:1.75;
}
.check-list li i{margin-top:6px;font-size:13px;flex:0 0 auto;}
.check-list li i.ok{color:var(--jade);}
.check-list li i.no{color:#B8B4C6;}

/* ============ 资讯 ============ */
.info-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-lead{
  grid-column:1/-1;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  color:var(--ink);transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.info-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);color:var(--ink);}
.info-lead .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--bg-alt);}
.info-lead .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.info-lead:hover .thumb img{transform:scale(1.03);}
.info-lead .body{padding:32px;display:flex;flex-direction:column;justify-content:center;}
.info-lead strong{display:block;font-size:22px;font-weight:700;line-height:1.45;margin:14px 0 12px;}
.info-lead em{font-style:normal;font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:18px;}
.info-lead .meta{display:flex;align-items:center;gap:18px;font-size:13px;color:var(--ink-3);}
.info-lead .meta i{font-style:normal;color:var(--brand);font-weight:600;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.info-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge-tag{
  display:inline-block;align-self:flex-start;font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:6px;padding:4px 10px;margin-bottom:12px;
}
.info-card h3{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card p{
  font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);padding-top:14px;border-top:1px dashed var(--line);
}
.info-card .meta i{font-style:normal;color:var(--brand);font-weight:600;}
.cms-empty{
  text-align:center;color:var(--ink-3);background:var(--card);border:1px dashed var(--line);
  border-radius:var(--r-card);padding:64px 20px;font-size:16px;margin:0;
}
.cms-empty i{display:block;font-size:30px;color:var(--brand-soft);margin-bottom:12px;color:#C6BFF0;}

/* ============ FAQ ============ */
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);padding:8px 28px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:14px 0;font-size:17px;font-weight:600;color:var(--ink);border-radius:14px;
  transition:background .2s var(--ease),padding .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;transition:transform .25s var(--ease);
}
.faq-item[open] summary{background:var(--bg-alt);padding-left:16px;padding-right:16px;}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-item .answer{padding:4px 0 22px;font-size:16px;line-height:1.85;color:var(--ink-2);}

/* ============ 表单 ============ */
.contact-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:start;}
.contact-info li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);}
.contact-info li:last-child{border-bottom:none;}
.contact-info i{color:var(--brand);width:22px;text-align:center;margin-top:5px;}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);padding:32px;box-shadow:var(--sh-md);}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form-control,.form-select{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:0 14px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
textarea.form-control{height:auto;min-height:118px;padding:14px;line-height:1.7;resize:vertical;}
.form-control::placeholder{color:var(--ink-3);}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(74,53,184,.12);}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:6px;}
.privacy{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);margin:6px 0 20px;}
.privacy input{width:18px;height:18px;margin-top:5px;accent-color:var(--brand);flex:0 0 auto;}
.btn-submit{
  width:100%;height:50px;border:none;border-radius:999px;background:var(--brand);color:#fff;font-weight:700;font-size:16px;
  cursor:pointer;transition:background .18s var(--ease),transform .18s var(--ease);
}
.btn-submit:hover{background:var(--brand-deep);transform:translateY(-2px);}
.btn-submit:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-2);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--brand);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--dark-2);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--dark-2);transition:color .18s var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--dark-2);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--amber);margin-top:5px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;justify-content:space-between;font-size:13px;color:var(--dark-2);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{font-size:13px;color:var(--dark-2);}
.footer-links a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-title{font-size:40px;}
  .metric{padding:10px 20px;}
  .metric-num{font-size:46px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:60px;}
  .brand{font-size:15px;}
  .brand-text small{display:none;}
  .hero{padding:120px 0 80px;min-height:auto;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-title{font-size:36px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric{border-left:1px solid rgba(255,255,255,.12);}
  .metric:nth-child(odd){border-left:none;}
  .metric:nth-child(n+3){border-top:1px solid rgba(255,255,255,.12);margin-top:20px;padding-top:28px;}
  .info-wrap{grid-template-columns:repeat(2,1fr);}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:none;border-top:1px dashed var(--line);}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .info-lead{grid-template-columns:1fr;}
  .info-lead .thumb{aspect-ratio:16/9;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .section{padding:56px 0;}
  .sec-title{font-size:26px;margin-bottom:18px;}
  .sec-head{margin-bottom:32px;}
  .hero{padding:104px 0 64px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .metric-num{font-size:38px;}
  .metric-label{font-size:15px;}
  .metric-note{font-size:13px;}
  .media-row{grid-template-columns:1fr;}
  .info-wrap{grid-template-columns:1fr;}
  .info-lead .body{padding:22px;}
  .info-lead strong{font-size:19px;}
  .faq-list{padding:4px 18px;}
  .faq-item summary{font-size:16px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-title{font-size:27px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric{padding:8px 14px;}
  .metric-num{font-size:32px;}
  .brand-text{font-size:14px;}
}

/* roulang page: category1 */
:root{
  --brand:#4A35B8;
  --brand-dark:#2E2178;
  --brand-light:#EDE9FB;
  --jade:#12A594;
  --amber:#F5A524;
  --bg:#FAF9F6;
  --bg-alt:#F3F1FB;
  --card:#FFFFFF;
  --ink:#1B1730;
  --ink-2:#5A5573;
  --ink-3:#8B87A3;
  --ink-inv:#F5F3FF;
  --ink-inv-2:#B9B4D6;
  --dark:#171233;
  --line:#E6E3F0;
  --glass-line:rgba(255,255,255,.45);
  --r-card:16px;
  --r-panel:20px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:12px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(27,23,48,.06);
  --sh-md:0 8px 24px rgba(27,23,48,.08);
  --sh-lg:0 20px 48px rgba(27,23,48,.12);
  --sh-nav:0 6px 24px rgba(27,23,48,.10);
  --gap:24px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:var(--sh-nav);
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 8px 28px rgba(27,23,48,.12);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(74,53,184,.28);
}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:16px;line-height:1.2;letter-spacing:.2px}
.brand-text small{font-size:10px;font-weight:600;color:var(--ink-3);letter-spacing:1.6px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s cubic-bezier(.2,.7,.3,1);
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.7);color:var(--ink-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--brand-light);color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:background .18s cubic-bezier(.2,.7,.3,1),transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease,color .18s ease;
  cursor:pointer;
}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(74,53,184,.28)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.8);color:var(--ink);font-size:15px;font-weight:600;
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
  cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.75);color:var(--ink);cursor:pointer;display:none;
  align-items:center;justify-content:center;
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:60px}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px}
  .brand-text{font-size:15px}
}
.search-bar{max-height:0;overflow:hidden;background:rgba(255,255,255,.96);border-top:1px solid transparent;transition:max-height .28s ease,border-color .28s ease}
.search-bar.open{max-height:120px;border-top-color:var(--line)}
.search-form{display:flex;align-items:center;gap:12px;padding:14px 0}
.search-form i{color:var(--ink-3)}
.search-form input{
  flex:1;height:46px;border-radius:var(--r-input);border:1px solid var(--line);
  background:var(--bg);padding:0 16px;font-size:15px;
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-light)}
.search-form button{
  height:46px;padding:0 22px;border-radius:var(--r-pill);border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;cursor:pointer;
  transition:background .18s ease,transform .18s ease;
}
.search-form button:hover{background:var(--brand-dark);transform:translateY(-2px)}

/* offcanvas mobile */
.offcanvas.mobile-nav{background:#fff;color:var(--ink);width:320px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:800;color:var(--ink)}
.mobile-nav .m-list{padding:12px 20px 24px}
.mobile-nav .m-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;color:var(--ink-2);font-size:16px;border-bottom:1px solid var(--line);
}
.mobile-nav .m-list a:hover,.mobile-nav .m-list a.active{color:var(--brand);font-weight:600}
.mobile-nav .m-cta{margin-top:20px;display:flex}
.mobile-nav .m-cta .btn-main{width:100%;justify-content:center}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  min-height:40vh;
  display:flex;align-items:center;
  padding:132px 0 56px;
  background-image:
    linear-gradient(270deg,rgba(255,255,255,.95) 0%,rgba(250,249,246,.74) 46%,rgba(250,249,246,.34) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero-inner{max-width:720px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand-dark);background:var(--brand-light);
  border:1px solid #DCD5F7;border-radius:var(--r-badge);padding:5px 12px;
}
.page-hero-title{
  margin-top:20px;font-size:34px;line-height:1.35;font-weight:800;color:var(--ink);
}
.page-hero-sub{margin-top:14px;font-size:17px;color:var(--ink-2);line-height:1.9;max-width:600px}
@media (max-width:767px){
  .page-hero{min-height:auto;padding:112px 0 40px}
  .page-hero-title{font-size:26px}
  .page-hero-sub{font-size:16px}
}

/* ---------- breadcrumb ---------- */
.crumb-wrap{background:var(--bg);padding:18px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C6C2D8}
.crumb .cur{color:var(--ink-2)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:var(--ink-inv)}
@media (max-width:991px){.section{padding:72px 0}}
@media (max-width:767px){.section{padding:56px 0}}

.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:32px;line-height:1.3;font-weight:700;color:var(--ink);margin-bottom:24px;
}
.section-head p{font-size:17px;color:var(--ink-2)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-dark .section-head h2{color:var(--ink-inv)}
.section-dark .section-head p{color:var(--ink-inv-2)}

h3{font-size:21px;line-height:1.4;font-weight:600}
.lead-block{margin-top:26px;font-size:17px;color:var(--ink-2);max-width:760px}
.h1-page{font-size:42px;line-height:1.25;font-weight:800;color:var(--ink);margin-top:22px;letter-spacing:-.2px}
@media (max-width:991px){.h1-page{font-size:36px}}
@media (max-width:767px){.h1-page{font-size:29px}}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-text h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:24px}
.split-text p{color:var(--ink-2);margin-bottom:22px}
.split-media{position:relative}
.split-media .img-frame{
  border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-md);background:var(--card);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.split-media:hover img{transform:scale(1.03)}
.media-note{
  position:absolute;left:-14px;bottom:-18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-lg);padding:14px 18px;max-width:250px;
}
.media-note strong{display:block;font-size:22px;font-weight:800;color:var(--brand)}
.media-note span{font-size:13px;color:var(--ink-3)}
@media (max-width:991px){
  .split{grid-template-columns:1fr;gap:36px}
  .media-note{left:0;bottom:-14px}
}

/* ---------- check list ---------- */
.check-list{margin-top:8px;display:grid;gap:14px}
.check-list li{
  display:flex;align-items:flex-start;gap:12px;font-size:16px;color:var(--ink-2);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 16px;box-shadow:var(--sh-sm);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease;
}
.check-list li:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.check-list li i{color:var(--jade);margin-top:6px;font-size:15px;flex:0 0 auto}
.check-list li b{color:var(--ink);font-weight:600}

/* ---------- stat strip ---------- */
.stat-strip{
  border-top:1px solid rgba(255,255,255,.12);border-bottom:1px solid rgba(255,255,255,.12);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{padding:34px 26px;border-right:1px solid rgba(255,255,255,.12)}
.stat-item:last-child{border-right:none}
.stat-num{font-size:52px;line-height:1;font-weight:800;color:var(--amber);letter-spacing:0}
.stat-num .unit{font-size:20px;font-weight:700;margin-left:4px;color:var(--ink-inv-2)}
.stat-label{margin-top:14px;font-size:16px;font-weight:600;color:var(--ink-inv)}
.stat-desc{margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-inv-2)}
@media (max-width:991px){.stat-strip{grid-template-columns:repeat(2,1fr)}.stat-item:nth-child(2){border-right:none}}
@media (max-width:767px){
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:38px}
  .stat-item{padding:26px 18px}
  .stat-item:nth-child(odd){border-right:1px solid rgba(255,255,255,.12)}
  .stat-item:nth-child(even){border-right:none}
}

/* ---------- steps ---------- */
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:12px}
.step-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-sm);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--brand-light);
  color:var(--brand-dark);font-weight:800;font-size:16px;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:15px;color:var(--ink-2);line-height:1.8}
@media (max-width:991px){.step-row{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.step-row{grid-template-columns:1fr}}

/* ---------- scenes ---------- */
.scene-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.scene-list{display:grid;gap:16px}
.scene-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;
  box-shadow:var(--sh-sm);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D9D3F4}
.scene-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--brand);color:var(--brand);background:#F7F5FE;
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.scene-item h3{font-size:18px;margin-bottom:6px}
.scene-item p{font-size:15px;color:var(--ink-2);line-height:1.8}
@media (max-width:991px){.scene-wrap{grid-template-columns:1fr;gap:32px}}

/* ---------- tips rows ---------- */
.tip-list{border-top:1px solid var(--line)}
.tip-row{
  display:grid;grid-template-columns:250px 1fr;gap:24px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.tip-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border:1px solid #DCD5F7;border-radius:var(--r-badge);
  padding:6px 12px;
}
.tip-row p{font-size:16px;color:var(--ink-2)}
.tip-row p b{color:var(--ink);font-weight:600}
@media (max-width:767px){
  .tip-row{grid-template-columns:1fr;gap:10px;padding:18px 0}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{border:none;background:transparent;border-bottom:1px solid var(--line)}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--ink);font-size:17px;font-weight:600;
  padding:22px 44px 22px 18px;box-shadow:none;border-radius:14px;
  transition:background .18s ease,color .18s ease;
}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.accordion-button::after{
  background-image:none;content:"+";font-size:22px;font-weight:600;color:var(--brand);
  width:26px;height:26px;line-height:24px;text-align:center;transform:none;
  transition:transform .24s cubic-bezier(.2,.7,.3,1),color .18s ease;
  position:absolute;right:14px;top:50%;margin-top:-13px;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.accordion-body{
  padding:0 18px 24px 18px;font-size:16px;line-height:1.85;color:var(--ink-2);
}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(135deg,#F3F1FB 0%,#EDE9FB 100%);
  border:1px solid #DDD6F6;border-radius:var(--r-panel);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-sm);
}
.cta-band h2{font-size:27px;line-height:1.35;font-weight:700;margin-bottom:12px}
.cta-band p{font-size:16px;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;flex-wrap:wrap}
@media (max-width:991px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions a{flex:1 1 180px;justify-content:center}
}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--ink-inv-2);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;color:var(--ink-inv);font-weight:800;font-size:18px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:16px}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.9;color:var(--ink-inv-2);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--ink-inv);margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col ul a{font-size:14px;color:var(--ink-inv-2)}
.footer-col ul a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-inv-2);line-height:1.8}
.footer-contact i{margin-top:6px;color:var(--brand-light)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#8F8AB0;
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{font-size:13px;color:#8F8AB0}
.footer-links a:hover{color:#fff}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --ink:#1B1730;
  --ink-2:#5A5573;
  --ink-3:#8B87A3;
  --primary:#4A35B8;
  --primary-dark:#2E2178;
  --primary-soft:#EDE9FB;
  --jade:#12A594;
  --amber:#F5A524;
  --bg:#FAF9F6;
  --bg-2:#F3F1FB;
  --card:#FFFFFF;
  --dark:#171233;
  --dark-2:#B9B4D6;
  --border:#E6E3F0;
  --r-card:16px;
  --r-panel:20px;
  --r-input:12px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(27,23,48,.06);
  --sh-md:0 8px 24px rgba(27,23,48,.08);
  --sh-lg:0 20px 48px rgba(27,23,48,.12);
  --sh-nav:0 6px 24px rgba(27,23,48,.10);
}
*{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","HarmonyOS Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--sh-nav);
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--border);
  box-shadow:0 8px 28px rgba(27,23,48,.12);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:800;
  box-shadow:0 6px 16px rgba(74,53,184,.28);
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;line-height:1.15;color:var(--ink);letter-spacing:-.01em;}
.brand-text small{font-size:10px;font-weight:600;letter-spacing:.14em;color:var(--ink-3);margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);
  transition:color .18s cubic-bezier(.2,.7,.3,1);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;
  transition:width .22s cubic-bezier(.2,.7,.3,1);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:rgba(255,255,255,.85);
  color:var(--ink-2);display:grid;place-items:center;cursor:pointer;
  transition:all .18s cubic-bezier(.2,.7,.3,1);
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);border:none;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .18s cubic-bezier(.2,.7,.3,1);
  box-shadow:0 8px 20px rgba(74,53,184,.22);
}
.btn-main:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff;}
.btn-main:active{transform:translateY(0);}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:rgba(255,255,255,.9);color:var(--ink);display:grid;place-items:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.search-bar{
  max-height:0;overflow:hidden;background:rgba(255,255,255,.97);
  border-top:1px solid transparent;
  transition:max-height .3s ease,border-color .3s ease;
}
.search-bar.is-open{max-height:104px;border-top-color:var(--border);}
.search-form{display:flex;align-items:center;gap:12px;padding:16px 0;}
.search-form i{color:var(--ink-3);}
.search-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-input);
  border:1px solid var(--border);background:#fff;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input::placeholder{color:var(--ink-3);}
.search-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(74,53,184,.12);}
.search-form button{
  height:48px;padding:0 26px;border:none;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-form button:hover{background:var(--primary-dark);}
@media (min-width:992px){.nav-toggle{display:none;}}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-inner{height:60px;gap:14px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
  .brand-text{font-size:15px;}
  .brand-text small{display:none;}
}

/* ---------- 移动端抽屉 ---------- */
.offcanvas#mobileNav{width:308px;background:#fff;border-left:1px solid var(--border);}
#mobileNav .offcanvas-header{
  padding:18px 20px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
}
#mobileNav .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
#mobileNav .offcanvas-body{padding:12px 20px 28px;}
.m-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 6px;
  font-size:16px;color:var(--ink);border-bottom:1px solid var(--border);
}
.m-nav a:hover,.m-nav a.active{color:var(--primary);font-weight:600;}
.m-cta{width:100%;margin-top:22px;}

/* ---------- 页面头部 ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:132px 0 56px;
  background:var(--bg-2);
  border-bottom:1px solid var(--border);
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.14;
}
.page-head .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:18px;}
.crumb a{color:var(--ink-3);transition:color .18s ease;}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:var(--ink-3);opacity:.7;}
.crumb span.current{color:var(--ink-2);}
.page-title{
  font-size:clamp(28px,3.4vw,44px);line-height:1.25;font-weight:800;
  letter-spacing:-.01em;max-width:940px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;}
.badge-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border:1px solid var(--primary);border-radius:6px;
  background:#fff;color:var(--primary);font-size:13px;font-weight:600;
}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums;}
.meta-item i{color:var(--ink-3);font-size:13px;}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:56px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
}
.hero-figure{margin:0 0 36px;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);}
.hero-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.article-body{font-size:17.5px;line-height:1.9;color:#2E2947;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:clamp(24px,2.4vw,30px);font-weight:700;line-height:1.35;
  margin:44px 0 24px;color:var(--ink);
}
.article-body h3{font-size:21px;font-weight:600;line-height:1.4;margin:32px 0 12px;color:var(--primary-dark);}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body ul li{list-style:disc;margin:.5em 0;}
.article-body ol li{list-style:decimal;margin:.5em 0;}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-left:3px solid var(--primary);
  background:var(--primary-soft);border-radius:0 12px 12px 0;
  color:var(--ink-2);font-size:16.5px;
}
.article-body img{border-radius:12px;margin:26px 0;box-shadow:var(--sh-sm);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:14px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(74,53,184,.35);transition:border-color .18s ease,color .18s ease;}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:16px;background:#fff;}
.article-body th,.article-body td{border-bottom:1px solid var(--border);padding:12px 14px;text-align:left;}
.article-body th{background:var(--bg-2);font-weight:600;color:var(--ink);}
.article-body hr{border:none;border-top:1px solid var(--border);margin:36px 0;}
.article-body code{
  background:var(--bg-2);padding:2px 6px;border-radius:6px;
  font-size:15px;color:var(--primary-dark);
}
.empty-state{
  padding:56px 32px;text-align:center;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-panel);box-shadow:var(--sh-sm);
}
.empty-state i{font-size:34px;color:var(--ink-3);}
.empty-state h2{font-size:24px;font-weight:700;margin:16px 0 10px;}
.empty-state p{color:var(--ink-2);max-width:520px;margin:0 auto 24px;font-size:16px;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px 22px 24px;box-shadow:var(--sh-sm);
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.side-links li + li{margin-top:10px;}
.side-links a{
  display:flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-2);
  transition:color .18s ease,transform .18s ease;
}
.side-links a i{font-size:12px;color:var(--primary);}
.side-links a:hover{color:var(--primary);transform:translateX(3px);}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--bg-2);color:var(--ink-2);font-size:13px;
}
.side-note{font-size:14px;line-height:1.75;color:var(--ink-2);}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;padding-top:44px;border-top:1px solid var(--border);}
.sec-title{font-size:24px;font-weight:700;margin-bottom:22px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.mini-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.mini-card .thumb{overflow:hidden;}
.mini-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.mini-card:hover img{transform:scale(1.03);}
.mini-body{padding:16px 18px 20px;}
.mini-body h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.mini-body p{font-size:14px;line-height:1.75;color:var(--ink-2);}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:600px){.related-grid{grid-template-columns:minmax(0,1fr);}}

/* ---------- 上下篇与返回 ---------- */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:44px;}
.post-nav-item{
  display:flex;align-items:center;gap:14px;padding:20px 22px;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-sm);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--primary);}
.post-nav-item i{font-size:16px;color:var(--primary);}
.post-nav-item span{display:block;font-size:13px;color:var(--ink-3);}
.post-nav-item strong{display:block;font-size:16px;font-weight:600;color:var(--ink);}
.back-row{margin-top:28px;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
  transition:gap .18s ease,color .18s ease;
}
.back-link:hover{gap:12px;color:var(--primary-dark);}
@media (max-width:600px){.post-nav{grid-template-columns:minmax(0,1fr);}}

/* ---------- 底部 CTA ---------- */
.cta-strip{padding:0 0 88px;}
.cta-inner{
  background:var(--dark);border-radius:var(--r-panel);
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(74,53,184,.55),transparent 70%);
}
.cta-inner > *{position:relative;z-index:1;}
.cta-inner h2{color:#F5F3FF;font-size:26px;font-weight:700;margin-bottom:10px;}
.cta-inner p{color:var(--dark-2);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:#fff;color:var(--ink);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .18s cubic-bezier(.2,.7,.3,1);
}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:#F5F3FF;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.cta-strip .btn-main{background:var(--amber);color:#2A1D00;box-shadow:0 8px 20px rgba(245,165,36,.28);}
.cta-strip .btn-main:hover{background:#FFB94D;color:#2A1D00;}
@media (max-width:991px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .cta-actions{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-2);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F5F3FF;font-size:17px;font-weight:800;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;box-shadow:none;}
.footer-desc{font-size:14.5px;line-height:1.85;color:var(--dark-2);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;color:#F5F3FF;margin-bottom:18px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--dark-2);transition:color .18s ease;}
.footer-col ul a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--dark-2);line-height:1.7;}
.footer-contact li + li{margin-top:12px;}
.footer-contact i{color:var(--primary-soft);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--dark-2);
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{color:var(--dark-2);transition:color .18s ease;}
.footer-links a:hover{color:#fff;}
@media (max-width:991px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ---------- 移动端通用 ---------- */
@media (max-width:991px){
  .page-head{padding:112px 0 44px;}
  .article-wrap{padding:44px 0 64px;}
  .cta-strip{padding:0 0 64px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .page-title{font-size:28px;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{font-size:23px;margin:34px 0 18px;}
  .article-body h3{font-size:19px;margin:28px 0 12px;}
  .btn-main,.btn-ghost{width:100%;padding:0 20px;}
  .nav-right .btn-main{width:auto;}
  .cta-actions{flex-direction:column;}
  .search-form{flex-wrap:wrap;}
  .search-form input{min-width:0;}
  .search-form button{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand:#4A35B8;
  --brand-dark:#2E2178;
  --brand-light:#EDE9FB;
  --teal:#12A594;
  --amber:#F5A524;
  --bg:#FAF9F6;
  --bg-alt:#F3F1FB;
  --card:#FFFFFF;
  --text:#1B1730;
  --text-2:#5A5573;
  --text-3:#8B87A3;
  --dark:#171233;
  --dark-2:#B9B4D6;
  --line:#E6E3F0;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:999px;
  --r-input:12px;
  --sh-sm:0 1px 2px rgba(27,23,48,.06);
  --sh-md:0 8px 24px rgba(27,23,48,.08);
  --sh-lg:0 20px 48px rgba(27,23,48,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.2px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{padding-inline:20px;margin-inline:auto;width:100%}
@media (min-width:576px){.container{max-width:100%}}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:0 6px 24px rgba(27,23,48,.10);
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 8px 28px rgba(27,23,48,.12);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(74,53,184,.28);
}
.brand-text{display:flex;flex-direction:column;font-size:18px;font-weight:700;line-height:1.2}
.brand-text small{font-size:10px;font-weight:600;letter-spacing:1.6px;color:var(--text-3);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15.5px;font-weight:500;color:var(--text-2);border-radius:10px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--brand-dark);background:rgba(237,233,251,.7)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand-dark);font-weight:600}
.nav-right{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.7);color:var(--text-2);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s var(--ease);cursor:pointer;
}
.icon-btn:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#D9D2F5}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:all .18s var(--ease);cursor:pointer;
}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid #D9D2F5;background:transparent;color:var(--brand-dark);
  font-size:15px;font-weight:600;transition:all .18s var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.8);color:var(--text);font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.search-bar{
  max-height:0;overflow:hidden;background:rgba(255,255,255,.98);
  border-bottom:1px solid transparent;
  transition:max-height .28s var(--ease),border-color .28s var(--ease);
}
.search-bar.open{max-height:110px;border-bottom-color:var(--line)}
.search-form{display:flex;align-items:center;gap:12px;padding:14px 0}
.search-form i{color:var(--text-3)}
.search-form input{
  flex:1;height:48px;border-radius:var(--r-input);border:1px solid var(--line);
  background:#F7F6FB;padding:0 16px;font-size:15px;color:var(--text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(74,53,184,.12);background:#fff}
.search-form button{
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:all .18s var(--ease);
}
.search-form button:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.offcanvas-panel{background:#fff}
.offcanvas-panel .m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:12px 4px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.offcanvas-panel .m-nav a.active{color:var(--brand-dark);font-weight:600}
.offcanvas-panel .m-nav a:hover{color:var(--brand)}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;display:flex;align-items:flex-end;
  min-height:40vh;padding:140px 0 56px;background:var(--dark);
}
.cat-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center right;
}
.cat-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(270deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.72) 34%,rgba(23,18,51,.72) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.cat-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border:1px solid rgba(74,53,184,.35);border-radius:6px;background:rgba(255,255,255,.8);
  color:var(--brand-dark);font-size:13px;font-weight:600;letter-spacing:.6px;
}
.cat-hero-lead{
  margin:18px 0 0;max-width:600px;font-size:26px;line-height:1.55;font-weight:700;color:#fff;
  text-shadow:0 2px 12px rgba(23,18,51,.45);
}

/* ---------- 面包屑与导语 ---------- */
.crumb-wrap{padding:26px 0 0;background:var(--bg)}
.crumb{font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb span.now{color:var(--text-2)}
.crumb i{font-size:10px;color:#C4C0D8}

.intro{padding:22px 0 0;background:var(--bg)}
.intro h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.3px}
.intro h1 em{font-style:normal;color:var(--brand-dark)}
.intro-lead{
  margin-top:24px;max-width:900px;font-size:17px;line-height:1.9;color:var(--text-2);
}
.mini-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.mini-stat{
  display:flex;align-items:baseline;gap:8px;padding:12px 18px;border-radius:12px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
}
.mini-stat b{font-size:22px;font-weight:800;color:var(--brand-dark);letter-spacing:0}
.mini-stat span{font-size:13px;color:var(--text-3)}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section.alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700}
.section-head h2 em{font-style:normal;color:var(--brand-dark)}
.section-head p{margin-top:24px;color:var(--text-2);font-size:16.5px}
.eyebrow{
  display:inline-block;margin-bottom:14px;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--brand);text-transform:uppercase;
}

/* ---------- 礼包卡片网格 ---------- */
.pack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pack-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.pack-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#D9D2F5}
.pack-card.wide{grid-column:span 2}
.pack-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--brand-light)}
.pack-card.wide .pack-media{aspect-ratio:21/9}
.pack-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.pack-card:hover .pack-media img{transform:scale(1.03)}
.pack-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.pack-badge{
  align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:6px;font-size:13px;font-weight:600;
  background:var(--brand-light);color:var(--brand-dark);
}
.pack-badge.tone-teal{background:rgba(18,165,148,.12);color:#0C7F73}
.pack-badge.tone-amber{background:rgba(245,165,36,.16);color:#9A6606}
.pack-body h3{font-size:20px;line-height:1.4;font-weight:600}
.pack-body p{font-size:15.5px;color:var(--text-2);line-height:1.85;margin:0}
.pack-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--line)}
.pack-meta span{font-size:13.5px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px}
.pack-meta span i{color:var(--teal);font-size:12px}
.pack-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--brand-dark);background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0% 1.5px;background-position:0 100%;
  padding-bottom:3px;transition:background-size .24s var(--ease),color .18s var(--ease);width:fit-content;
}
.pack-link:hover{background-size:100% 1.5px;color:var(--brand-dark)}

/* ---------- 参数对比条 ---------- */
.param-section{background:var(--dark);color:#F5F3FF}
.param-section .section-head h2{color:#fff}
.param-section .section-head p{color:var(--dark-2)}
.param-board{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-panel);padding:12px 28px;
}
.param-row{
  display:grid;grid-template-columns:200px 1fr 220px;align-items:center;gap:24px;
  padding:22px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.param-row:last-child{border-bottom:none}
.param-name{font-size:16.5px;font-weight:600;color:#fff;display:flex;align-items:center;gap:10px}
.param-name i{color:var(--amber);font-size:14px}
.param-track{height:10px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.param-track span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--teal),#4ED3C1)}
.param-track span.tone-amber{background:linear-gradient(90deg,var(--amber),#FFC964)}
.param-track span.tone-brand{background:linear-gradient(90deg,var(--brand),#8B79E8)}
.param-value{font-size:14.5px;color:var(--dark-2);text-align:right}
.param-note{margin-top:22px;font-size:14px;color:var(--dark-2)}

/* ---------- 场景清单 ---------- */
.scene-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.scene-list li{
  display:flex;gap:16px;padding:22px 0;border-bottom:1px dashed var(--line);
}
.scene-list li:last-child{border-bottom:none}
.scene-ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  border:1px solid #D9D2F5;color:var(--brand-dark);background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.scene-list h3{font-size:18px;font-weight:600;margin-bottom:6px}
.scene-list p{font-size:15.5px;color:var(--text-2);margin:0}
.scene-aside{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-md);overflow:hidden;
}
.scene-aside .aside-media{aspect-ratio:16/10;overflow:hidden}
.scene-aside .aside-media img{width:100%;height:100%;object-fit:cover}
.scene-aside .aside-body{padding:28px}
.scene-aside h3{font-size:20px;margin-bottom:12px}
.scene-aside p{font-size:15.5px;color:var(--text-2)}
.step-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.step-chips span{
  font-size:13px;font-weight:600;color:var(--brand-dark);background:var(--brand-light);
  padding:7px 13px;border-radius:8px;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 18px;background:transparent;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text);border-radius:14px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:var(--bg-alt);color:var(--brand-dark)}
.faq-item.open .faq-q{background:var(--bg-alt);color:var(--brand-dark)}
.faq-q i{flex:0 0 auto;font-size:14px;color:var(--brand);transition:transform .28s var(--ease)}
.faq-item.open .faq-q i{transform:rotate(135deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 18px 24px;font-size:16px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand),var(--brand-dark));
  border-radius:var(--r-panel);padding:52px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-lg);
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.84);font-size:16px;max-width:620px;margin:0}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn-light-solid{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:#fff;color:var(--brand-dark);font-size:15px;font-weight:700;border:1px solid #fff;
  transition:all .18s var(--ease);
}
.btn-light-solid:hover{transform:translateY(-2px);color:var(--brand-dark);box-shadow:0 12px 26px rgba(23,18,51,.24)}
.btn-light-ghost{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  border:1px solid rgba(255,255,255,.55);transition:all .18s var(--ease);
}
.btn-light-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px)}

.form-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start}
.form-note h2{font-size:30px;line-height:1.3;margin-bottom:20px}
.form-note p{color:var(--text-2);font-size:16.5px}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text-2)}
.contact-list i{color:var(--brand);margin-top:6px}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh-md);padding:32px;
}
.field{margin-bottom:20px}
.field label{display:block;font-size:14.5px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  background:#FBFAFE;padding:0 16px;height:48px;font-size:15px;color:var(--text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field textarea{height:118px;padding:13px 16px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9A5BE}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(74,53,184,.12);
}
.field .hint{font-size:13px;color:var(--text-3);margin-top:6px}
.field .err{display:none;font-size:13px;color:#C0392B;margin-top:6px}
.field.has-error input,.field.has-error select{border-color:#E07A6E;background:#FFF7F6}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:22px}
.check-row input{width:18px;height:18px;margin-top:5px;accent-color:var(--brand)}
.form-card .btn-main{width:100%;height:50px;font-size:16px}
.form-card .btn-main:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#F5F3FF;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;margin-bottom:18px}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:18px}
.footer-desc{font-size:14.5px;line-height:1.85;color:var(--dark-2);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--dark-2)}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--dark-2);line-height:1.7}
.footer-contact i{color:var(--amber);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--dark-2);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:var(--dark-2);font-size:13.5px}
.footer-links a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .intro h1{font-size:40px}
  .pack-grid{grid-template-columns:repeat(2,1fr)}
  .pack-card.wide{grid-column:span 2}
  .scene-wrap{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .section{padding:72px 0}
  .cat-hero{min-height:auto;padding:126px 0 48px}
  .cat-hero-lead{font-size:22px}
  .form-wrap{grid-template-columns:1fr;gap:32px}
  .param-row{grid-template-columns:160px 1fr;gap:16px}
  .param-value{grid-column:2;text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:40px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .nav-inner{height:60px}
  .brand-text{font-size:15.5px}
  .brand-text small{display:none}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:10px}
  .intro h1{font-size:29px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .intro-lead,.section-head p{font-size:16px}
  .pack-grid{grid-template-columns:1fr}
  .pack-card.wide{grid-column:span 1}
  .pack-card.wide .pack-media{aspect-ratio:16/10}
  .param-board{padding:6px 18px}
  .param-row{grid-template-columns:1fr;gap:12px;padding:18px 0}
  .param-value{grid-column:1}
  .faq-q{font-size:16px;padding:18px 12px}
  .faq-a p{padding:0 12px 20px;font-size:15.5px}
  .cta-band{padding:32px 24px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions a{width:100%;justify-content:center}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cat-hero-lead{font-size:20px}
}

/* roulang page: category2 */
:root{
  --brand:#4A35B8;
  --brand-dark:#2E2178;
  --brand-light:#EDE9FB;
  --green:#12A594;
  --amber:#F5A524;
  --bg:#FAF9F6;
  --bg-alt:#F3F1FB;
  --card:#FFFFFF;
  --ink:#1B1730;
  --ink-2:#5A5573;
  --ink-3:#8B87A3;
  --dark:#171233;
  --dark-2:#B9B4D6;
  --on-dark:#F5F3FF;
  --line:#E6E3F0;
  --r-sm:8px;
  --r:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(27,23,48,.06);
  --sh-md:0 8px 24px rgba(27,23,48,.08);
  --sh-lg:0 20px 48px rgba(27,23,48,.12);
  --sh-nav:0 6px 24px rgba(27,23,48,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
ul,ol{list-style:none;margin:0;padding:0;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{color:var(--ink);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1140px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:var(--sh-nav);
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(27,23,48,.12);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-size:18px;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.28),var(--sh-sm);
  flex-shrink:0;
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  font-size:17px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:.01em;
}
.brand-text small{
  font-size:10px;
  letter-spacing:.18em;
  font-weight:600;
  color:var(--ink-3);
}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--brand);
  transition:width .25s var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.75);
  color:var(--brand);
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.icon-btn:hover{background:var(--brand-light);border-color:#cfc7ee;transform:translateY(-2px);}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--brand);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);
}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  border:1px solid rgba(74,53,184,.35);
  background:transparent;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-2px);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-amber{background:var(--amber);border-color:var(--amber);color:#241a05;}
.btn-amber:hover{background:#e0940f;border-color:#e0940f;color:#241a05;}
.nav-toggle{
  width:44px;height:44px;
  display:none;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.8);
  color:var(--brand);
  font-size:18px;
}
.search-bar{
  max-height:0;
  overflow:hidden;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid transparent;
  transition:max-height .3s var(--ease),border-color .3s var(--ease);
}
.search-bar.is-open{max-height:120px;border-bottom-color:var(--line);}
.search-form{display:flex;align-items:center;gap:12px;padding:14px 0;color:var(--ink-3);}
.search-form input{
  flex:1;
  height:44px;
  padding:0 16px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:15px;
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-light);}
.search-form button{
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--brand);
  background:var(--brand);
  color:#fff;
  font-weight:600;
}
.search-form button:hover{background:var(--brand-dark);border-color:var(--brand-dark);}
#mobileNav{background:#fff;}
#mobileNav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
#mobileNav .offcanvas-title{font-size:17px;font-weight:800;color:var(--ink);}
#mobileNav .mnav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:12px 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  font-weight:500;
  color:var(--ink-2);
}
#mobileNav .mnav a.active{color:var(--brand);font-weight:700;}
#mobileNav .mnav a:hover{color:var(--brand);}
#mobileNav .mnav a i{font-size:13px;color:var(--ink-3);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  min-height:40vh;
  display:flex;
  align-items:center;
  padding:132px 0 56px;
  background:
    linear-gradient(100deg,rgba(23,18,51,.9) 0%,rgba(46,33,120,.74) 48%,rgba(74,53,184,.26) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.5;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero-inner{max-width:720px;color:var(--on-dark);}
.ticket{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border:1px dashed rgba(255,255,255,.55);
  border-radius:var(--r-sm);
  font-size:13px;
  letter-spacing:.06em;
  color:#E7E3FF;
  background:rgba(255,255,255,.06);
}
.cat-hero-title{
  font-size:38px;
  font-weight:800;
  line-height:1.3;
  color:var(--on-dark);
  margin:20px 0 14px;
  letter-spacing:.01em;
}
.cat-hero-lead{
  font-size:17px;
  line-height:1.9;
  color:#D9D5F2;
  max-width:600px;
  margin:0;
}
.hero-marks{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-marks span{
  font-size:13px;
  padding:6px 12px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);
  color:#EFEDFF;
}

/* ============ 主内容通用 ============ */
.crumb-bar{padding:22px 0 0;font-size:14px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--ink-3);}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:#C9C4DD;}
.crumb .cur{color:var(--ink-2);}
.page-title{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  margin:20px 0 20px;
  letter-spacing:-.01em;
}
.page-title .key{color:var(--brand-dark);}
.lead{
  max-width:840px;
  font-size:17px;
  line-height:1.95;
  color:var(--ink-2);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  font-size:13px;
  padding:5px 12px;
  border-radius:6px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink-2);
}
.tag.tag-brand{border-color:#D9D2F5;background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.tag.tag-green{border-color:rgba(18,165,148,.28);background:rgba(18,165,148,.08);color:#0B7A6D;font-weight:600;}

.section{padding:var(--sec) 0;}
.section.alt{background:var(--bg-alt);}
.section.tint{
  background-color:var(--bg);
  background-image:radial-gradient(rgba(74,53,184,.07) 1px,transparent 1px);
  background-size:22px 22px;
}
.section-head{max-width:780px;margin-bottom:44px;}
.sec-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:6px;
  border:1px solid #D9D2F5;
  background:var(--card);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
}
.section-head h2{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  margin:18px 0 16px;
}
.section-head p{color:var(--ink-2);margin:0;}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:900px;padding-left:38px;}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:10px;bottom:14px;
  width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(74,53,184,.14) 100%);
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-32px;top:10px;
  width:16px;height:16px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--brand);
  box-shadow:0 0 0 4px var(--brand-light);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 26px;
  box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D9D2F5;}
.tl-index{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.08em;
  margin-bottom:8px;
}
.tl-card h3{font-size:20px;font-weight:600;line-height:1.4;margin:0 0 10px;}
.tl-card p{font-size:16px;line-height:1.88;color:var(--ink-2);margin:0;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ============ 场景分条 ============ */
.scene-list{border-top:1px solid var(--line);}
.scene-row{
  display:grid;
  grid-template-columns:190px 1fr;
  gap:28px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.scene-row:hover{background:rgba(237,233,251,.5);}
.scene-label{display:flex;flex-direction:column;gap:8px;}
.scene-label .num-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-weight:800;
  font-size:16px;
}
.scene-label .scene-name{font-size:18px;font-weight:700;color:var(--ink);}
.scene-body h3{font-size:19px;font-weight:600;margin:0 0 10px;}
.scene-body p{font-size:16px;line-height:1.88;color:var(--ink-2);margin:0 0 14px;}
.scene-media{
  border-radius:var(--r);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  aspect-ratio:16 / 10;
  background:var(--bg-alt);
  margin-top:16px;
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.scene-row:hover .scene-media img{transform:scale(1.03);}
.scene-row.is-dark .scene-body h3,
.scene-row.is-dark .scene-body p{color:var(--on-dark);}
.scene-row.is-dark{background:var(--dark);border-bottom-color:rgba(255,255,255,.1);}
.scene-row.is-dark:hover{background:#1D1740;}
.scene-row.is-dark .scene-label .scene-name{color:var(--on-dark);}
.scene-row.is-dark .scene-label .num-badge{background:rgba(245,165,36,.16);color:var(--amber);}
.scene-row.is-dark .tag{background:transparent;border-color:rgba(255,255,255,.22);color:#CFCBE9;}
.scene-row.is-dark .scene-media{border-color:rgba(255,255,255,.14);}
.scene-row.is-dark .scene-link{color:var(--amber);}
.scene-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  position:relative;
}
.scene-link::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:0;height:1px;
  background:currentColor;
  transition:width .25s var(--ease);
}
.scene-link:hover::after{width:100%;}
.scene-link:hover{color:var(--brand-dark);}

/* ============ 图文板块 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-lg);
  aspect-ratio:4 / 3;
  background:var(--bg-alt);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.split-body h2{font-size:32px;line-height:1.3;font-weight:700;margin:18px 0 18px;}
.split-body p{color:var(--ink-2);}
.check-list{margin-top:22px;display:grid;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:14px 16px;
  box-shadow:var(--sh-sm);
}
.check-list li i{color:var(--green);font-size:16px;margin-top:5px;flex-shrink:0;}
.check-list li strong{color:var(--ink);font-weight:600;}

/* ============ 速查列表 ============ */
.quick-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.quick-row{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:24px;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.quick-row:last-child{border-bottom:none;}
.quick-row:hover{background:var(--brand-light);}
.quick-row dt{
  font-size:16px;
  font-weight:700;
  color:var(--brand-dark);
  align-self:start;
}
.quick-row dd{margin:0;font-size:16px;line-height:1.85;color:var(--ink-2);}
.quick-note{
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-top:24px;
  padding:16px 20px;
  border:1px dashed #CFC7EE;
  border-radius:var(--r);
  background:rgba(237,233,251,.5);
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.quick-note i{color:var(--brand);margin-top:5px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 16px;
  background:transparent;
  border:none;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  border-radius:14px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-item.open .faq-q{background:var(--brand-light);color:var(--brand-dark);}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  font-size:13px;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff;border-color:var(--brand);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s var(--ease);
}
.faq-a p{
  padding:0 16px 22px;
  margin:0;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ============ CTA ============ */
.cta-band{
  background:var(--dark);
  border-radius:var(--r-lg);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:240px;height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(74,53,184,.55) 0%,rgba(74,53,184,0) 70%);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:var(--on-dark);font-size:30px;line-height:1.35;font-weight:700;margin:0 0 12px;}
.cta-band p{color:var(--dark-2);font-size:16px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:var(--dark-2);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--on-dark);
}
.footer-brand .brand-mark{background:var(--brand);}
.footer-desc{font-size:14px;line-height:1.85;margin:18px 0 0;color:var(--dark-2);}
.footer-col h4{font-size:15px;font-weight:600;color:var(--on-dark);margin:0 0 18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--dark-2);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.75;}
.footer-contact i{color:var(--amber);margin-top:5px;flex-shrink:0;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:var(--dark-2);}
.footer-links a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:72px;}
  .page-title{font-size:38px;}
  .split{gap:34px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:34px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:60px;}
  .cat-hero{padding:112px 0 48px;}
  .cat-hero-title{font-size:30px;}
  .page-title{font-size:34px;}
  .section-head h2,.split-body h2{font-size:27px;}
  .scene-row{grid-template-columns:150px 1fr;gap:20px;}
  .quick-row{grid-template-columns:180px 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:767.98px){
  :root{--sec:56px;}
  body{font-size:16px;line-height:1.85;}
  .container{padding-left:20px;padding-right:20px;}
  .cat-hero{min-height:auto;padding:96px 0 44px;}
  .cat-hero-title{font-size:26px;margin:16px 0 12px;}
  .cat-hero-lead{font-size:15px;}
  .page-title{font-size:29px;margin:16px 0 16px;}
  .lead{font-size:16px;}
  .section-head h2,.split-body h2{font-size:23px;}
  .section-head{margin-bottom:30px;}
  .timeline{padding-left:28px;}
  .timeline::before{left:8px;}
  .tl-item::before{left:-25px;width:14px;height:14px;}
  .tl-card{padding:18px 18px;}
  .tl-card h3{font-size:18px;}
  .scene-row{grid-template-columns:1fr;gap:14px;padding:22px 0;}
  .scene-label{flex-direction:row;align-items:center;gap:12px;}
  .scene-label .num-badge{width:38px;height:38px;border-radius:10px;font-size:15px;}
  .split{grid-template-columns:1fr;gap:26px;}
  .quick-row{grid-template-columns:1fr;gap:8px;padding:18px 18px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-md);}
  .cta-band h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:18px 8px;}
  .faq-a p{padding:0 8px 18px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .brand-text small{font-size:9px;letter-spacing:.12em;}
  .brand-mark{width:34px;height:34px;font-size:16px;}
  .page-title{font-size:26px;}
  .hero-marks{gap:8px;}
  .hero-marks span{font-size:12px;}
  .search-form{gap:8px;}
  .search-form button{padding:0 16px;}
}