/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --warn:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --sh-card:0 10px 30px rgba(0,0,0,.45);
  --sh-hover:0 16px 42px rgba(124,58,237,.28);
  --ease:.22s ease;
}

/* ==================== 基础重置 ==================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;background:transparent;}
a:hover{color:var(--primary-hi);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
em,i{font-style:normal;}
:focus-visible{outline:2px solid var(--primary-hi);outline-offset:2px;}

/* 覆盖 Foundation 默认外观 */
a,a:hover{color:inherit;}
.button,button{background:transparent;color:inherit;border:0;margin:0;}
.button:hover,button:hover{background:transparent;}
.reveal{background:var(--surface);border:1px solid var(--line);border-radius:18px;color:var(--txt);box-shadow:var(--sh-card);}
.reveal-overlay{background:rgba(9,7,18,.72);}
.off-canvas{background:var(--bg-elev);border-left:1px solid var(--line);}
.off-canvas-content{background:var(--bg);}
.accordion{background:transparent;border:0;}
.accordion-item{background:var(--bg-elev) !important;border:1px solid var(--line) !important;border-radius:14px !important;margin-bottom:10px;overflow:hidden;}
.accordion-title{border:0 !important;background:transparent !important;color:var(--txt) !important;font-size:16.5px;font-weight:600;padding:18px 52px 18px 20px;position:relative;transition:color var(--ease);}
.accordion-title:hover{color:var(--primary-hi) !important;background:rgba(124,58,237,.08) !important;}
.accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:14px;
  color:var(--primary-hi);
  transition:transform var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.accordion-item.is-active .accordion-title{box-shadow:inset 3px 0 0 var(--primary-hi);}
.accordion-content{border:0 !important;background:#12102A !important;color:var(--muted) !important;font-size:15px;line-height:1.85;padding:16px 20px 20px 20px !important;border-top:1px solid var(--line) !important;}
.accordion-content p{margin:0;}

/* ==================== 容器与排版 ==================== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:640px){.container{padding:0 16px;}}

.section{padding:88px 0;}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head h2{
  font-size:32px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.4px;
  display:flex;
  align-items:center;
}
.section-head h2::before{
  content:"";
  display:inline-block;
  width:6px;
  height:24px;
  background:var(--primary-hi);
  border-radius:3px;
  margin-right:14px;
  flex:0 0 auto;
}
.section-sub{margin-top:12px;font-size:16px;color:var(--muted);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.section-head-row .section-head{margin-bottom:0;}

/* ==================== 按钮 ==================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  min-height:46px;
  text-align:center;
  white-space:nowrap;
}
.btn-primary{background:var(--cta);color:#1A0F05;border-color:var(--cta);}
.btn-primary:hover,.btn-primary:focus{background:var(--cta-hover);border-color:var(--cta-hover);color:#1A0F05;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,138,61,.3);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-primary:focus{outline:none;box-shadow:0 0 0 3px rgba(255,138,61,.35);}
.btn-ghost{background:transparent;color:var(--txt);border-color:var(--line);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(124,58,237,.14);border-color:var(--primary);color:var(--txt);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary-hi);
  padding-bottom:2px;
  border-bottom:2px solid rgba(168,85,247,.4);
  transition:color var(--ease),border-color var(--ease),gap var(--ease);
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);gap:10px;}

/* ==================== 徽章 ==================== */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
}
.badge-primary{background:rgba(124,58,237,.18);color:#C4A6FF;}
.badge-accent{background:rgba(34,211,238,.14);color:var(--accent);}

/* ==================== 头部导航 ==================== */
.site-header{position:sticky;top:0;z-index:60;}
.brand-bar{background:var(--bg);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-hi));
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#fff;letter-spacing:0;
}
.brand-text{
  font-size:16.5px;font-weight:700;color:var(--txt);letter-spacing:-.2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand-text em{font-style:normal;color:var(--muted);font-weight:600;font-size:13.5px;margin-left:8px;}
.brand-right{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.brand-contact{font-size:13.5px;color:var(--muted);display:inline-flex;align-items:center;gap:8px;}
.brand-contact i{color:var(--accent);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  color:var(--txt);cursor:pointer;align-items:center;justify-content:center;font-size:17px;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary-hi);}

.channel-bar{background:var(--bg-elev);border-bottom:1px solid var(--line);position:relative;}
.channel-inner{display:flex;align-items:center;gap:4px;height:52px;overflow-x:auto;scrollbar-width:none;white-space:nowrap;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;align-items:center;height:52px;padding:0 16px;
  font-size:15px;font-weight:600;color:var(--muted);flex:0 0 auto;
  transition:color var(--ease),background var(--ease);
}
.channel-link:hover{color:var(--txt);background:rgba(255,255,255,.05);}
.channel-link.is-active{color:var(--txt);}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;
  background:var(--primary-hi);border-radius:2px;
}

/* 移动端抽屉 */
.mobile-nav-list{padding:16px 0;list-style:none;margin:0;}
.mobile-nav-list a{
  display:block;padding:15px 24px;font-size:16px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:color var(--ease),background var(--ease);
}
.mobile-nav-list a:hover{color:var(--txt);background:rgba(255,255,255,.04);}
.mobile-nav-list a.is-active{color:var(--txt);box-shadow:inset 3px 0 0 var(--primary-hi);}
.mobile-nav-head{padding:20px 24px 12px;font-size:13px;color:var(--muted);letter-spacing:1px;}

/* ==================== Hero ==================== */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(124,58,237,0));
  z-index:3;
}
.hero-bg{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero-bg::after{
  content:"";position:absolute;top:0;left:0;right:0;bottom:0;
  background:linear-gradient(115deg,rgba(9,7,18,.96) 0%,rgba(13,10,24,.88) 46%,rgba(124,58,237,.45) 100%);
}
.hero-inner{position:relative;z-index:2;padding:86px 0 92px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--accent);
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.25);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{
  font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.5px;
  max-width:640px;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:560px;line-height:1.75;}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap;}
.hero-trust{display:flex;gap:24px;margin-top:34px;flex-wrap:wrap;}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.hero-trust i{color:var(--accent);font-size:14px;}

.hero-panel{
  background:rgba(27,21,51,.78);
  border:1px solid var(--line);
  border-radius:18px;
  padding:26px;
  box-shadow:var(--sh-card);
}
.hero-panel-head{
  display:flex;align-items:center;gap:9px;
  font-size:13.5px;font-weight:700;color:var(--muted);letter-spacing:.5px;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.hero-panel-head .dot{
  width:8px;height:8px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 4px rgba(52,211,153,.16);flex:0 0 auto;
}
.hero-panel-list{margin-top:6px;}
.hero-panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.07);
  font-size:15px;
}
.hero-panel-list li:last-child{border-bottom:0;}
.hero-panel-list span{color:var(--txt);font-weight:600;}
.hero-panel-list b{font-weight:600;font-size:13.5px;color:var(--accent);}
.hero-panel-note{margin-top:16px;font-size:13px;line-height:1.7;color:var(--muted);}

/* ==================== 痛点提问 ==================== */
.section-pain{background:var(--bg);}
.pain-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px 24px 26px;
  height:100%;
  overflow:hidden;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:22px;width:6px;height:26px;
  background:var(--primary-hi);border-radius:0 3px 3px 0;
}
.pain-card:hover{border-color:rgba(168,85,247,.45);transform:translateY(-4px);box-shadow:var(--sh-hover);}
.pain-icon{
  width:42px;height:42px;border-radius:12px;
  background:rgba(124,58,237,.16);color:var(--primary-hi);
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;
}
.pain-card h3{font-size:18px;font-weight:700;line-height:1.4;}
.pain-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;}
.pain-col{display:flex;}
.pain-col > .pain-card{width:100%;}
.pain-grid{margin-bottom:-24px;}

/* ==================== 方案编号横卡 ==================== */
.section-plan{background:var(--bg-elev);}
.plan-list{border-top:1px solid var(--line);}
.plan-row{
  display:grid;
  grid-template-columns:96px 1fr 170px;
  align-items:center;
  gap:24px;
  padding:26px 8px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease),padding var(--ease);
}
.plan-row:hover{background:rgba(124,58,237,.08);padding-left:16px;padding-right:16px;}
.plan-num{
  font-size:40px;font-weight:800;line-height:1;color:rgba(168,85,247,.42);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.plan-row:hover .plan-num{color:rgba(168,85,247,.85);}
.plan-title{display:block;font-size:20px;font-weight:700;line-height:1.35;}
.plan-desc{display:block;margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.7;}
.plan-arrow{
  display:inline-flex;align-items:center;gap:8px;justify-content:flex-end;
  font-size:14px;font-weight:600;color:var(--muted);transition:color var(--ease),gap var(--ease);
}
.plan-row:hover .plan-arrow{color:var(--accent);gap:12px;}

/* ==================== 数据带 ==================== */
.section-stats{background:var(--bg);padding-top:0;}
.stats-band{
  position:relative;
  background:linear-gradient(120deg,#171136 0%,#2A1B5E 100%);
  border:1px solid var(--line);
  border-radius:20px;
  padding:44px 32px;
  overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;top:0;left:0;right:0;bottom:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.5;
  pointer-events:none;
}
.stats-inner{position:relative;z-index:2;}
.stat{text-align:left;padding:8px 0;}
.stat b{
  display:block;font-size:52px;font-weight:800;line-height:1.1;
  letter-spacing:-1px;font-variant-numeric:tabular-nums;
  color:var(--txt);
}
.stat b em{color:var(--cta);font-size:30px;font-weight:800;margin-left:2px;}
.stat span{display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--txt);}
.stat p{margin-top:4px;font-size:13px;color:rgba(236,232,250,.6);line-height:1.6;}

/* ==================== 最新信息 ==================== */
.section-news{background:var(--bg-elev);}
.news-grid{margin-bottom:-24px;}
.news-grid > .cell{display:flex;margin-bottom:24px;}
.news-card{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:18px;
  width:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.news-card:hover{border-color:rgba(168,85,247,.45);transform:translateY(-4px);box-shadow:var(--sh-hover);}
.news-thumb{
  display:block;width:160px;height:100px;border-radius:12px;overflow:hidden;
  background:#0F0C1E;border:1px solid var(--line);flex:0 0 auto;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-main{display:flex;flex-direction:column;min-width:0;}
.news-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:17px;font-weight:600;line-height:1.5;
  transition:color var(--ease);
}
.news-card:hover .news-title{color:var(--primary-hi);}
.news-desc{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:8px;font-size:15px;color:var(--muted);line-height:1.7;
}
.news-meta{
  display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;
}
.news-date{font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.news-arrow{margin-left:auto;color:var(--muted);font-size:13px;transition:transform var(--ease),color var(--ease);}
.news-card:hover .news-arrow{transform:translateX(4px);color:var(--accent);}
.news-empty{
  width:100%;text-align:center;padding:48px 24px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);
  color:var(--muted);font-size:15px;
}
.news-empty p{margin-bottom:14px;}

/* ==================== FAQ ==================== */
.section-faq{background:var(--bg);}
.faq-lead{margin-bottom:28px;font-size:15.5px;color:var(--muted);max-width:720px;}

/* ==================== 表单区 ==================== */
.section-contact{background:var(--bg-elev);}
.contact-copy h2{
  font-size:32px;font-weight:800;line-height:1.3;letter-spacing:-.4px;
  display:flex;align-items:center;
}
.contact-copy h2::before{
  content:"";display:inline-block;width:6px;height:24px;background:var(--primary-hi);
  border-radius:3px;margin-right:14px;flex:0 0 auto;
}
.contact-copy p{margin-top:16px;font-size:15.5px;color:var(--muted);line-height:1.8;}
.contact-copy ul{margin-top:24px;}
.contact-copy ul li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--txt);padding:9px 0;
}
.contact-copy ul li i{color:var(--accent);margin-top:5px;font-size:13px;}
.contact-privacy{margin-top:26px;font-size:12.5px;color:var(--muted);line-height:1.7;max-width:420px;}

.contact-form-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  padding:28px;
  box-shadow:var(--sh-card);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;font-weight:600;}
.form-row input[type="text"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea{
  width:100%;
  background:#100D20;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:0 14px;
  height:46px;
  color:var(--txt);
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
  appearance:none;
  -webkit-appearance:none;
}
.form-row textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-row select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A6A0C2'%3E%3Cpath d='M8 11L3 5h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:14px;
  padding-right:40px;
}
.form-row select option{background:#151126;color:var(--txt);}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(124,58,237,.28);
}
.form-row input::placeholder,
.form-row textarea::placeholder{color:#6F6A8C;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:13.5px;color:var(--muted);line-height:1.6;cursor:pointer;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto;}
.form-tip{margin-top:14px;font-size:13.5px;color:var(--ok);}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7;}

/* ==================== 弹层 ==================== */
.consult-modal{max-width:520px;width:92vw;padding:30px 28px 26px;}
.consult-modal h3{font-size:22px;font-weight:800;line-height:1.35;}
.modal-sub{margin-top:8px;font-size:14.5px;color:var(--muted);margin-bottom:22px;}
.consult-modal .close-button{
  position:absolute;top:14px;right:16px;width:36px;height:36px;border-radius:10px;
  color:var(--muted);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:color var(--ease),background var(--ease);
}
.consult-modal .close-button:hover{color:var(--txt);background:rgba(255,255,255,.06);}
.modal-privacy{margin-top:14px;font-size:12px;color:var(--muted);line-height:1.7;}

/* ==================== 页脚 ==================== */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding:64px 0 28px;font-size:13.5px;color:var(--muted);}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--txt);margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--muted);transition:color var(--ease);}
.footer-col ul li a:hover{color:var(--primary-hi);}
.footer-col .contact-line{display:flex;align-items:flex-start;gap:9px;margin-bottom:12px;line-height:1.7;}
.footer-col .contact-line i{color:var(--accent);margin-top:4px;font-size:13px;}
.footer-line{height:1px;background:var(--line);margin:40px 0 22px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7C7699;}
.footer-bottom a{color:#7C7699;}
.footer-bottom a:hover{color:var(--primary-hi);}

/* ==================== 响应式 ==================== */
@media (max-width:1199px){
  .plan-row{grid-template-columns:80px 1fr 150px;}
  .stat b{font-size:46px;}
}

@media (max-width:1023px){
  .section{padding:64px 0;}
  .hero-inner{padding:64px 0 68px;}
  .hero h1{font-size:36px;}
  .hero-panel{margin-top:36px;}
  .plan-row{grid-template-columns:64px 1fr 130px;gap:18px;padding:22px 6px;}
  .plan-num{font-size:32px;}
  .plan-title{font-size:18px;}
  .brand-contact{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar::after{
    content:"";position:absolute;right:0;top:0;bottom:0;width:36px;
    background:linear-gradient(90deg,rgba(21,17,38,0),var(--bg-elev));
    pointer-events:none;
  }
  .section-head h2,.contact-copy h2{font-size:26px;}
  .stats-band{padding:36px 24px;}
  .stat b{font-size:42px;}
  .footer-top > .cell{margin-bottom:32px;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:52px 0;}
  .hero-inner{padding:52px 0 56px;}
  .hero h1{font-size:30px;letter-spacing:-.3px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-trust{gap:14px;margin-top:26px;}
  .section-head h2,.contact-copy h2{font-size:24px;}
  .section-head h2::before,.contact-copy h2::before{height:20px;margin-right:10px;width:5px;}
  .plan-row{
    grid-template-columns:1fr;
    gap:10px;
    padding:22px 2px;
  }
  .plan-row:hover{padding-left:2px;padding-right:2px;}
  .plan-arrow{justify-content:flex-start;}
  .stats-band{padding:28px 20px;border-radius:16px;}
  .stat{padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.1);}
  .stat:last-child{border-bottom:0;}
  .stat b{font-size:38px;}
  .stat b em{font-size:22px;}
  .news-card{grid-template-columns:1fr;padding:16px;}
  .news-thumb{width:100%;height:auto;aspect-ratio:16/9;}
  .contact-form-wrap{padding:22px 18px;}
  .site-footer{padding:48px 0 24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media (max-width:640px){
  .hero-bg{
    position:relative;
    top:auto;left:auto;right:auto;bottom:auto;
    width:100%;
    aspect-ratio:16/9;
    min-height:170px;
  }
  .hero-bg::after{
    background:linear-gradient(180deg,rgba(9,7,18,.4) 0%,rgba(13,10,24,.95) 100%);
  }
  .hero-inner{padding:30px 0 52px;}
  .hero h1{font-size:27px;}
  .brand-inner{height:56px;}
  .brand-text{font-size:15px;}
  .brand-text em{display:none;}
  .brand-mark{width:32px;height:32px;font-size:15px;}
  .consult-modal{width:92vw;padding:26px 20px 22px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --danger:#FF6B6B;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 16px 42px rgba(124,58,237,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease}
a:hover{color:var(--primary-hi)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--txt);letter-spacing:-.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--primary-hi);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 28px;border:1px solid transparent;
  border-radius:var(--radius-btn);font-size:15.5px;font-weight:700;line-height:1;
  cursor:pointer;transition:all .22s ease;
}
.btn-primary{background:var(--cta);color:#210F02}
.btn-primary:hover{background:var(--cta-hover);color:#210F02;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,138,61,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,138,61,.35)}
.btn-ghost{background:transparent;color:var(--txt);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,58,237,.14);color:var(--txt);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:38px;padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--accent);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.text-link:hover{color:var(--primary-hi);border-bottom-color:var(--primary-hi)}
.text-link i{transition:transform .22s ease}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(13,10,24,.96);border-bottom:1px solid var(--line)}
.brand-row{border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;min-height:44px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-hi));
  color:#fff;font-weight:800;font-size:19px;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;font-size:16.5px;font-weight:800;line-height:1.2;color:var(--txt)}
.brand-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.5px;margin-top:2px}
.brand-actions{display:flex;align-items:center;gap:16px}
.brand-contact{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.brand-contact i{color:var(--accent)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--txt);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary-hi)}

.channel-bar{background:var(--bg-elev);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;padding:0 16px;height:52px;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--muted);border-radius:999px;
}
.channel-link:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.channel-link.is-active{color:var(--txt);font-weight:700}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;background:var(--primary-hi);
}

.mobile-panel{display:none;background:var(--bg-elev);border-bottom:1px solid var(--line);padding:10px 0}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;padding:13px 24px;font-size:15px;color:var(--muted);
  border-left:3px solid transparent;min-height:44px;
}
.mobile-panel a:hover{color:var(--txt);background:rgba(255,255,255,.04)}
.mobile-panel a.is-active{color:var(--txt);border-left-color:var(--primary-hi);font-weight:700}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:44px 0 40px;
  background-image:linear-gradient(115deg,rgba(9,7,18,.94) 12%,rgba(13,10,24,.86) 52%,rgba(124,58,237,.42) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--primary-hi),rgba(124,58,237,0));
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a:hover{color:var(--primary-hi);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:rgba(166,160,194,.55)}
.crumbs .current{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{font-size:34px;line-height:1.3;max-width:900px;letter-spacing:-.5px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13.5px;color:var(--muted)}
.article-meta .divider{width:1px;height:13px;background:var(--line)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;letter-spacing:.2px;
}
.badge-primary{background:rgba(124,58,237,.2);color:#C4A7FF}
.badge-accent{background:rgba(34,211,238,.14);color:var(--accent)}
.badge-soft{background:rgba(255,255,255,.06);color:var(--muted)}

/* ---------- 正文区 ---------- */
.article-body{padding:56px 0 72px}
.article-main{min-width:0}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:34px 36px;box-shadow:var(--shadow-card);
}
.article-content{max-width:760px;font-size:17px;line-height:1.9;color:#D9D4EE}
.article-content p{margin:0 0 20px}
.article-content h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.35;color:var(--txt);
  margin:44px 0 18px;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.16em;width:4px;border-radius:3px;background:var(--primary-hi);
}
.article-content h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--txt);margin:32px 0 14px}
.article-content h4{font-size:17px;font-weight:600;color:var(--txt);margin:24px 0 12px}
.article-content ul,.article-content ol{margin:0 0 20px;padding:0;list-style:none}
.article-content li{position:relative;padding-left:24px;margin-bottom:10px}
.article-content ul>li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;background:var(--primary-hi);
}
.article-content ol{counter-reset:oli}
.article-content ol>li{counter-increment:oli}
.article-content ol>li::before{
  content:counter(oli);position:absolute;left:0;top:0;color:var(--accent);font-size:14px;font-weight:700;
}
.article-content blockquote{
  margin:24px 0;padding:16px 22px;background:var(--bg-elev);
  border-left:3px solid var(--accent);border-radius:0 12px 12px 0;color:var(--muted);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:26px auto;height:auto}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary-hi)}
.article-content strong{color:#fff}
.article-content figure{margin:26px 0}
.article-content figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-content .table-wrap,.article-content table{max-width:100%}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-content th,.article-content td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-content th{background:var(--bg-elev);color:var(--txt);font-weight:600;font-size:14.5px}
.article-content tr:last-child td{border-bottom:0}
.article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.empty-state{
  border:1px dashed rgba(255,255,255,.18);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:var(--bg-elev);
}
.empty-state i{font-size:30px;color:var(--primary-hi);margin-bottom:14px;display:block}
.empty-state p{color:var(--muted);margin-bottom:20px;font-size:15.5px}

.article-actions{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;padding-top:28px;border-top:1px solid var(--line);
}
.article-navline{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:22px;font-size:14px;color:var(--muted);
}
.article-navline span{display:inline-flex;align-items:center;gap:8px}
.article-navline .vline{width:1px;height:13px;background:var(--line)}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.side-sticky{position:sticky;top:132px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:14px;font-weight:700;color:var(--txt);letter-spacing:.4px;
  padding-left:11px;position:relative;margin-bottom:16px;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:.15em;bottom:.15em;width:4px;border-radius:3px;background:var(--primary-hi);
}
.side-list li{padding:12px 0;border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list a{display:block;font-size:14.5px;font-weight:600;line-height:1.55;color:var(--txt);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-list a:hover{color:var(--primary-hi)}
.side-list .time{display:block;margin-top:6px;font-size:12.5px;color:var(--muted)}
.info-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.info-row:last-child{border-bottom:0;padding-bottom:0}
.info-row .k{color:var(--muted);flex:0 0 auto}
.info-row .v{color:var(--txt);font-weight:600;text-align:right;min-width:0;word-break:break-word}
.side-cta{
  background:linear-gradient(140deg,rgba(124,58,237,.28),rgba(34,211,238,.1));
  border:1px solid rgba(124,58,237,.4);border-radius:var(--radius-card);padding:22px;
}
.side-cta h3{font-size:17px;margin-bottom:10px;color:#fff}
.side-cta p{font-size:14px;color:#C9C2E4;line-height:1.7;margin-bottom:16px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 88px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.related-head h2{font-size:26px}
.related-head p{font-size:14px;color:var(--muted);margin-top:6px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.42)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,10,24,0) 42%,rgba(13,10,24,.72) 100%);
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.card-meta .arrow{margin-left:auto;color:var(--accent);transition:transform .22s ease}
.card:hover .card-meta .arrow{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#090713;border-top:1px solid var(--line);padding:64px 0 26px;font-size:13.5px;color:var(--muted)}
.footer-top{padding-bottom:34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{line-height:1.8;max-width:340px}
.footer-col h4{font-size:14.5px;font-weight:700;color:var(--txt);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--muted);min-height:24px;display:inline-flex;align-items:center}
.footer-col ul li a:hover{color:var(--primary-hi)}
.contact-line{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;line-height:1.7}
.contact-line i{color:var(--accent);margin-top:4px}
.footer-line{height:1px;background:var(--line);margin-bottom:22px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.footer-bottom p{line-height:1.7}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-hero h1{font-size:30px}
  .article-panel{padding:28px 24px}
  .side-sticky{position:static}
  .related{padding-bottom:64px}
  .article-body{padding:44px 0 56px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .brand-inner{height:56px}
  .brand-contact{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channel-inner{gap:2px}
  .channel-link{padding:0 13px;font-size:14.5px}
  .article-hero{padding:30px 0 28px}
  .article-hero h1{font-size:24px}
  .article-meta{gap:10px;font-size:13px}
  .article-panel{padding:22px 18px;border-radius:14px}
  .article-content{font-size:16.5px;line-height:1.9}
  .article-content h2{font-size:21px;margin-top:36px}
  .article-content h3{font-size:18.5px}
  .article-actions .btn{width:100%}
  .footer-top>*{margin-bottom:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-hero h1{font-size:22px}
  .crumbs .current{white-space:normal}
  .brand-text{font-size:15px}
  .brand-text em{font-size:11px}
  .card-body{padding:18px}
  .side-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --danger:#FF6B6B;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 16px 42px rgba(124,58,237,.28);
  --maxw:1200px;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--txt);text-decoration:none;background-color:transparent;transition:color .22s ease}
a:hover{color:var(--primary-hi)}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--txt)}
h1{font-size:44px;letter-spacing:-.5px;line-height:1.25}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button,.button{background:none;border:0;color:inherit;cursor:pointer;font-family:inherit}
::selection{background:rgba(124,58,237,.5);color:#fff}
:focus-visible{outline:2px solid var(--primary-hi);outline-offset:2px}
/* ============ 容器与栅格 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0;position:relative}
.section-tight{padding:64px 0}
.section-head{margin-bottom:34px}
.section-head h2{font-size:32px}
.section-head p{color:var(--muted);font-size:16px;margin:12px 0 0;max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:2px;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary-hi)}
.lead{color:var(--muted);font-size:16.5px}
.divider{height:1px;background:var(--line);border:0;margin:0}
/* ============ 头部与频道导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(13,10,24,.94);border-bottom:1px solid var(--line)}
.brand-bar{border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-hi));
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 6px 18px rgba(124,58,237,.4);
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.2;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:400;color:var(--muted);letter-spacing:.6px}
.brand-actions{display:flex;align-items:center;gap:14px}
.contact-chip{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--muted)}
.contact-chip i{color:var(--accent)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  color:var(--txt);background:var(--bg-elev);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary-hi)}
.channel-bar{background:var(--bg-elev)}
.channel-inner{
  display:flex;align-items:center;gap:4px;height:52px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:52px;
  padding:0 16px;font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.channel-link:hover{color:var(--txt);background:rgba(255,255,255,.05);border-radius:8px}
.channel-link.is-active{color:var(--txt);font-weight:700}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;
}
/* ============ 抽屉导航（移动端） ============ */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none;opacity:0;transition:opacity .22s ease}
.drawer.is-open{pointer-events:auto;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(9,7,18,.72)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:var(--bg-elev);border-left:1px solid var(--line);
  padding:22px 20px;transform:translateX(100%);transition:transform .26s ease;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-title{font-size:13px;letter-spacing:2px;color:var(--muted);margin-bottom:10px}
.drawer-link{
  display:flex;align-items:center;gap:10px;min-height:46px;padding:0 12px;
  border-radius:10px;color:var(--muted);font-size:16px;border-left:3px solid transparent;
}
.drawer-link:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.drawer-link.is-active{color:var(--txt);font-weight:700;border-left-color:var(--primary);background:rgba(124,58,237,.12)}
.drawer-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.drawer-close:hover{color:var(--txt);border-color:var(--primary)}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:700;line-height:1;
  padding:14px 28px;border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--cta);color:#1A1024}
.btn-primary:hover{background:var(--cta-hover);color:#1A1024;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,138,61,.35)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,58,237,.14);color:var(--txt);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--accent);border-bottom:2px solid rgba(34,211,238,.35);padding-bottom:2px;
  transition:border-color .22s ease,color .22s ease;
}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover{color:#7DE9F7;border-color:#7DE9F7}
.link-arrow:hover i{transform:translateX(4px)}
/* ============ 标签与徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
  background:rgba(124,58,237,.18);color:#C4A9F7;border:1px solid rgba(124,58,237,.35);
}
.badge-cyan{background:rgba(34,211,238,.14);color:#7DE9F7;border-color:rgba(34,211,238,.32)}
/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary-hi);text-decoration:underline}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#D6D0EC}
/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;min-height:300px;display:flex;align-items:center;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,7,18,.95) 0%,rgba(9,7,18,.82) 46%,rgba(30,16,64,.72) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-inner{position:relative;z-index:2;padding:44px 0;width:100%}
.hero-copy{max-width:680px;margin-top:18px}
.hero-copy h1{margin-bottom:14px}
.hero-sub{font-size:17px;color:#CFC8E8;margin:0 0 22px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;font-size:13.5px;color:var(--muted)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--accent)}
/* ============ 卖点横卡 ============ */
.feature-list{border-top:1px solid var(--line)}
.feature-row{
  display:flex;align-items:flex-start;gap:26px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background .22s ease;
}
.feature-row:hover{background:rgba(124,58,237,.05)}
.feature-num{
  flex:0 0 72px;font-size:44px;font-weight:800;line-height:1;
  color:rgba(124,58,237,.5);font-variant-numeric:tabular-nums;
}
.feature-main{flex:1 1 auto;min-width:0}
.feature-main h3{font-size:20px;margin-bottom:8px}
.feature-main p{color:var(--muted);font-size:15.5px;margin:0;max-width:640px}
.feature-side{flex:0 0 auto;padding-top:6px}
/* ============ 场景卡 ============ */
.scene-card{
  height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.45)}
.scene-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(34,211,238,.12);color:var(--accent);font-size:19px;margin-bottom:16px;
}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{color:var(--muted);font-size:15px;margin:0 0 14px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}
/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,var(--primary),rgba(124,58,237,.06));
}
.tl-item{position:relative;padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-31px;top:26px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(124,58,237,.18);
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease;
}
.tl-item:hover .tl-dot{transform:scale(1.4);background:var(--primary-hi);box-shadow:0 0 0 6px rgba(168,85,247,.2)}
.tl-card{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tl-card:hover{border-color:rgba(124,58,237,.45);transform:translateX(4px);box-shadow:var(--shadow-hover)}
.tl-thumb{
  flex:0 0 144px;width:144px;height:96px;border-radius:12px;overflow:hidden;
  background:#0D0A18;position:relative;
}
.tl-thumb img{width:100%;height:100%;object-fit:cover}
.tl-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,24,0) 40%,rgba(13,10,24,.45))}
.tl-body{flex:1 1 auto;min-width:0}
.tl-body h3{font-size:19px;margin-bottom:8px;transition:color .22s ease}
.tl-item:hover .tl-body h3{color:var(--primary-hi)}
.tl-body p{color:var(--muted);font-size:15px;margin:0 0 12px}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--muted)}
/* ============ 数据带 ============ */
.data-band{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#131024,#0D0A18);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.data-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
}
.data-band .container{position:relative;z-index:2}
.data-item{padding:8px 0 8px 18px;border-left:1px solid var(--line)}
.data-num{
  font-size:48px;font-weight:800;line-height:1.05;color:var(--txt);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.data-num small{font-size:16px;font-weight:600;color:var(--accent);margin-left:6px;letter-spacing:0}
.data-label{font-size:14.5px;font-weight:600;color:var(--txt);margin-top:6px}
.data-note{font-size:13.5px;color:var(--muted);margin-top:2px}
/* ============ FAQ 手风琴 ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion{background:transparent;border:0;margin:0;list-style:none}
.accordion .accordion-item{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:14px;
  margin-bottom:10px;overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.accordion .accordion-item.is-active{border-color:rgba(124,58,237,.55);background:#191333}
.accordion .accordion-title{
  display:block;position:relative;padding:18px 56px 18px 20px;
  font-size:16.5px;font-weight:600;color:var(--txt);border:0;
  background:transparent;border-left:3px solid transparent;
  transition:background .22s ease,border-color .22s ease,color .22s ease;
}
.accordion .accordion-title:hover{background:rgba(124,58,237,.1);color:var(--txt)}
.accordion .accordion-item.is-active .accordion-title{border-left-color:var(--primary)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;margin:0;width:auto;height:auto;
  transform:translateY(-50%);font-size:24px;font-weight:400;line-height:1;
  color:var(--primary-hi);transition:transform .22s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion .accordion-content{
  display:none;border:0;padding:0 20px 20px 23px;
  background:transparent;font-size:15px;line-height:1.9;color:var(--muted);
}
.accordion .accordion-content p{margin:0 0 8px}
.accordion .accordion-content p:last-child{margin:0}
.accordion .accordion-item.is-active > .accordion-content{display:block}
.accordion .accordion-title:focus-visible{outline:2px solid var(--primary-hi);outline-offset:-2px}
/* ============ CTA 横条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  border:1px solid rgba(124,58,237,.5);border-radius:18px;
  background:linear-gradient(120deg,#1D1638,#140F28);
  padding:30px 32px;
}
.cta-band h3{font-size:22px;margin-bottom:6px}
.cta-band p{color:var(--muted);font-size:15px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
/* ============ 页脚 ============ */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding:64px 0 30px;font-size:13.5px;color:var(--muted)}
.footer-top{padding-bottom:32px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{color:var(--muted);font-size:13.5px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--txt);margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--muted);font-size:13.5px}
.footer-col ul li a:hover{color:var(--primary-hi)}
.contact-line{display:flex;align-items:flex-start;gap:9px;margin-bottom:10px;line-height:1.7}
.contact-line i{color:var(--accent);margin-top:4px}
.footer-line{height:1px;background:var(--line)}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:20px}
.footer-bottom p{margin:0;color:var(--muted);font-size:13px}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 22px}
  h1{font-size:38px}
  .data-num{font-size:42px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  h1{font-size:34px}
  h2{font-size:26px}
  .section-head h2{font-size:26px}
  .data-item{border-left:0;border-top:1px solid var(--line);padding:18px 0}
  .feature-num{font-size:36px;flex:0 0 58px}
}
@media (max-width:1023px) and (min-width:640px){
  .brand-text{font-size:16px}
}
@media (max-width:767px){
  .contact-chip{display:none}
  .tl-card{flex-direction:column;gap:14px}
  .tl-thumb{flex:0 0 auto;width:100%;height:0;padding-bottom:56.25%}
  .tl-thumb img{position:absolute;inset:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  h1{font-size:28px}
  h2{font-size:23px}
  .section-head h2{font-size:23px}
  .section-head p{font-size:15px}
  h3{font-size:19px}
  .brand-inner{height:56px}
  .brand-mark{flex:0 0 34px;width:34px;height:34px;font-size:17px;border-radius:10px}
  .brand-text{font-size:14.5px}
  .brand-text em{display:none}
  .nav-toggle{display:inline-flex}
  .brand-actions .btn{display:none}
  .page-hero{min-height:auto}
  .hero-inner{padding:32px 0}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:12px}
  .feature-row{flex-direction:column;gap:10px}
  .feature-num{font-size:30px;flex:0 0 auto}
  .feature-side{padding-top:0}
  .timeline{padding-left:26px}
  .timeline::before{left:6px}
  .tl-dot{left:-26px;width:10px;height:10px;top:24px}
  .data-num{font-size:36px}
  .accordion .accordion-title{font-size:15.5px;padding:16px 48px 16px 16px}
  .accordion .accordion-content{padding:0 16px 18px 19px;font-size:14.5px}
  .footer-col{margin-top:24px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category2 */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 16px 42px rgba(124,58,237,.28);
  --container:1200px;
  --sec-pad:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--txt);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--primary-hi);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary-hi);outline-offset:2px;}

/* ===== Foundation 默认外观覆盖 ===== */
.button{
  background:var(--cta);color:#2A1305;border-radius:var(--radius-btn);
  font-weight:700;transition:all .22s ease;
}
.button:hover,.button:focus{background:var(--cta-hover);color:#2A1305;}
.accordion{background:transparent;}
.accordion-item{
  background:var(--bg-elev);border:1px solid var(--line);
  border-radius:14px;margin-bottom:10px;overflow:hidden;transition:border-color .22s ease;
}
.accordion-item:hover{border-color:rgba(124,58,237,.4);}
.accordion-title{
  background:transparent;border:0;color:var(--txt);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:18px 56px 18px 22px;position:relative;
}
.accordion-title:hover,.accordion-title:focus{background:rgba(124,58,237,.08);color:var(--txt);}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;
  transform:translateY(-50%);color:var(--primary-hi);
  font-size:22px;font-weight:400;line-height:1;
  transition:transform .22s ease;
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.accordion-item.is-active{box-shadow:inset 3px 0 0 var(--primary);border-color:rgba(124,58,237,.4);}
.accordion-content{
  background:transparent;border:0;color:var(--muted);
  font-size:15px;line-height:1.85;padding:0 22px 20px 22px;
}
.reveal-overlay{z-index:120;}

/* ===== 布局基础 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--bg-elev);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head h2{font-size:32px;}
.sec-head .lead{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--accent);letter-spacing:1.2px;margin-bottom:14px;}
.eyebrow::before{content:"";width:6px;height:16px;border-radius:3px;background:var(--primary);}

/* ===== 头部与导航 ===== */
.site-head{position:sticky;top:0;z-index:60;background:#0D0A18;border-bottom:1px solid var(--line);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-hi));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;color:#fff;letter-spacing:0;
  box-shadow:0 6px 18px rgba(124,58,237,.4);
}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;line-height:1.25;letter-spacing:-.3px;}
.brand-text em{font-style:normal;font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.6px;margin-top:2px;}
.top-meta{display:flex;align-items:center;gap:14px;}
.top-contact{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--muted);}
.top-contact i{color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);padding:14px 28px;
  font-size:15.5px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;min-height:46px;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-primary{background:var(--cta);color:#2A1305;box-shadow:0 8px 22px rgba(255,138,61,.26);}
.btn-primary:hover{background:var(--cta-hover);color:#2A1305;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus{box-shadow:0 0 0 3px rgba(255,138,61,.35);color:#2A1305;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--txt);}
.btn-ghost:hover{border-color:var(--primary);background:rgba(124,58,237,.14);color:var(--txt);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;border-radius:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--txt);
  align-items:center;justify-content:center;cursor:pointer;font-size:17px;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary-hi);}

.channel-bar{background:var(--bg-elev);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  height:52px;padding:0 14px;font-size:15px;color:var(--muted);
  white-space:nowrap;border-radius:8px;
}
.channel-link:hover{color:var(--txt);background:rgba(255,255,255,.05);}
.channel-link.is-active{color:var(--txt);font-weight:600;}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;
  height:2px;border-radius:2px;background:var(--primary-hi);
}
.mobile-panel{display:none;background:var(--bg-elev);border-bottom:1px solid var(--line);padding:12px 0 18px;}
.mobile-panel a{
  display:block;padding:12px 24px;font-size:15.5px;color:var(--muted);
  border-left:3px solid transparent;
}
.mobile-panel a.is-active{color:var(--txt);border-left-color:var(--primary);background:rgba(124,58,237,.1);}
.mobile-panel a:hover{color:var(--txt);}
.mobile-panel.is-open{display:block;}

/* ===== 内页 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;
  min-height:304px;display:flex;align-items:center;
  padding:52px 0 46px;
  background-image:
    linear-gradient(112deg,rgba(9,7,18,.95) 0%,rgba(9,7,18,.82) 46%,rgba(124,58,237,.55) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center 38%;
  border-bottom:1px solid rgba(124,58,237,.35);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 24px);
  opacity:.5;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary-hi);text-decoration:underline;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--txt);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;font-size:12.5px;letter-spacing:.6px;
  background:rgba(124,58,237,.2);color:#C8AEFF;border:1px solid rgba(124,58,237,.45);
  margin-bottom:18px;
}
.page-hero h1{font-size:44px;letter-spacing:-.5px;margin-bottom:16px;}
.page-hero .sub{max-width:600px;font-size:17px;color:#CFC8E8;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ===== 准备要点面板 ===== */
.prepare-panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:8px 28px;box-shadow:var(--shadow);}
.prepare-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line);}
.prepare-item:last-child{border-bottom:0;}
.prepare-num{
  flex:none;min-width:54px;font-size:26px;font-weight:800;line-height:1.2;
  color:rgba(168,85,247,.6);font-variant-numeric:tabular-nums;
}
.prepare-item h3{font-size:19px;margin-bottom:6px;}
.prepare-item p{color:var(--muted);font-size:15.5px;line-height:1.85;}

/* ===== 错落图文网格 ===== */
.bento .cell{display:flex;}
.feature-card{
  display:flex;width:100%;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.5);}
.feature-media{flex:0 0 46%;min-height:260px;overflow:hidden;background:var(--bg-elev);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.feature-body h3{font-size:22px;}
.feature-body p{font-size:15.5px;color:var(--muted);line-height:1.85;}

.mini-card{
  display:flex;flex-direction:column;width:100%;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.5);}
.mini-media{overflow:hidden;background:var(--bg-elev);}
.mini-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mini-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-body h3{font-size:18px;}
.mini-body p{font-size:14.8px;color:var(--muted);line-height:1.8;}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;line-height:1;
  background:rgba(124,58,237,.18);color:#C8AEFF;border:1px solid rgba(124,58,237,.38);
}
.tag-accent{background:rgba(34,211,238,.14);color:#7FE6F5;border-color:rgba(34,211,238,.32);}
.arrow-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:13.5px;}
.arrow-link i{transition:transform .22s ease;}
.arrow-link:hover{color:#6FE3F7;}
.arrow-link:hover i{transform:translateX(4px);}

.cta-mini{
  display:flex;flex-direction:column;justify-content:center;gap:14px;
  width:100%;padding:28px;border-radius:var(--radius-card);
  background:linear-gradient(140deg,rgba(124,58,237,.28),rgba(27,21,51,.95));
  border:1px solid rgba(124,58,237,.5);
}
.cta-mini h3{font-size:19px;}
.cta-mini p{font-size:14.5px;color:#CFC8E8;line-height:1.8;}

/* ===== 步骤与清单 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(124,58,237,.5);box-shadow:var(--shadow-hover);}
.step::after{
  content:"";position:absolute;top:52px;right:-22px;width:22px;
  border-top:1px dashed rgba(168,85,247,.55);
}
.step:last-child::after{display:none;}
.step-num{font-size:30px;font-weight:800;line-height:1;color:rgba(168,85,247,.55);font-variant-numeric:tabular-nums;}
.step h3{font-size:17px;margin:12px 0 8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;}

.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 30px;margin-top:40px;}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--txt);line-height:1.8;}
.checklist li i{color:var(--accent);margin-top:6px;font-size:14px;}

/* ===== 数据带 ===== */
.stats-band{
  position:relative;overflow:hidden;
  padding:58px 0;
  background:linear-gradient(102deg,#120E22 0%,#1B1533 58%,rgba(124,58,237,.4) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
  opacity:.55;
}
.stats-band .container{position:relative;z-index:2;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.stat-num{
  font-size:50px;font-weight:800;line-height:1.05;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.stat-num span{font-size:22px;color:var(--cta);margin-left:4px;font-weight:700;letter-spacing:0;}
.stat-label{font-size:15px;color:var(--txt);margin-top:8px;font-weight:600;}
.stat-note{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.7;}

/* ===== CTA 与表单 ===== */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:36px 40px;border-radius:20px;
  background:var(--surface);border:1px solid rgba(124,58,237,.45);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15px;line-height:1.8;max-width:600px;}

.ask-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start;margin-top:44px;}
.ask-intro h3{font-size:22px;margin-bottom:14px;}
.ask-intro p{color:var(--muted);font-size:15.5px;line-height:1.9;margin-bottom:12px;}
.ask-intro .tip{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#CFC8E8;
  background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);
  border-radius:12px;padding:14px 16px;line-height:1.8;
}
.ask-intro .tip i{color:var(--accent);margin-top:5px;}

.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:28px;box-shadow:var(--shadow);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#120E22;border:1px solid var(--line);
  border-radius:var(--radius-input);color:var(--txt);
  padding:0 14px;height:46px;margin:0;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#6F6A8C;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(124,58,237,.25);
}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:18px;}
.check-row input{width:18px;height:18px;flex:none;margin-top:3px;accent-color:var(--primary);}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:12px;}
.form-feedback{display:none;margin-top:14px;font-size:13.5px;color:var(--ok);}
.form-feedback.is-on{display:block;}

/* ===== 页脚 ===== */
.site-footer{background:#08060F;border-top:1px solid var(--line);padding:64px 0 28px;font-size:13.5px;color:var(--muted);}
.footer-top{row-gap:34px;}
.footer-brand .brand{display:flex;align-items:center;gap:12px;margin-bottom:4px;}
.footer-brand p{margin-top:16px;line-height:1.9;max-width:340px;}
.footer-col h4{font-size:14.5px;color:var(--txt);margin-bottom:16px;font-weight:600;letter-spacing:.3px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--muted);}
.footer-col a:hover{color:var(--primary-hi);}
.contact-line{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;line-height:1.7;}
.contact-line i{color:var(--primary-hi);margin-top:4px;}
.footer-line{height:1px;background:var(--line);margin:42px 0 22px;}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;line-height:1.8;}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--sec-pad:64px;}
  .page-hero{min-height:auto;padding:44px 0 40px;background-position:center 30%;}
  .page-hero h1{font-size:34px;}
  .sec-head h2{font-size:26px;}
  .feature-card{flex-direction:column;}
  .feature-media{flex:none;min-height:0;}
  .feature-media img{aspect-ratio:16/9;height:auto;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:nth-child(2n)::after{display:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stat-num{font-size:42px;}
  .ask-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 28px;}
}

@media (max-width:860px){
  .nav-toggle{display:inline-flex;}
  .top-contact{display:none;}
}

@media (max-width:767px){
  :root{--sec-pad:52px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  .brand-row{height:58px;}
  .brand-text{font-size:14.5px;}
  .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
  .page-hero{
    padding:34px 0 32px;
    background-image:
      linear-gradient(150deg,rgba(9,7,18,.96) 0%,rgba(9,7,18,.86) 60%,rgba(124,58,237,.6) 100%),
      url("/assets/images/backpic/back-1.png");
    background-size:cover;
    background-position:center;
  }
  .page-hero h1{font-size:30px;}
  .page-hero .sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .prepare-panel{padding:6px 18px;}
  .prepare-item{gap:14px;padding:20px 0;}
  .prepare-num{min-width:40px;font-size:22px;}
  .sec-head h2{font-size:24px;}
  .sec-head .lead{font-size:15.5px;}
  .checklist{grid-template-columns:1fr;margin-top:30px;}
  .steps{grid-template-columns:1fr;}
  .step::after{display:none;}
  .stats-grid{grid-template-columns:1fr;gap:22px;}
  .stat-num{font-size:38px;}
  .feature-body{padding:22px;}
  .feature-body h3{font-size:20px;}
  .mini-body{padding:18px;}
  .cta-band{padding:26px 20px;}
  .cta-band h2{font-size:22px;}
  .cta-band .btn{width:100%;}
  .form-card{padding:22px;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:520px){
  .page-hero h1{font-size:27px;}
  .hero-tag{font-size:12px;}
  .mini-body h3{font-size:17px;}
  .accordion-title{font-size:15.5px;padding:16px 48px 16px 18px;}
  .accordion-content{padding:0 18px 18px 18px;}
  .footer-brand p{max-width:none;}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto !important;}
  .mini-card:hover,.feature-card:hover,.step:hover,.btn-primary:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --danger:#FF6B6B;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hi:0 16px 42px rgba(124,58,237,.28);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border:0;}
a{color:var(--txt);text-decoration:none;transition:color .22s ease;}
a:hover,a:focus{color:var(--primary-hi);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.2px;font-weight:700;}
p{margin:0;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部品牌行 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,10,24,.96);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:16px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-height:44px;
}
.brand-mark{
  width:38px;
  height:38px;
  flex:0 0 38px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-hi));
  color:#fff;
  font-weight:800;
  font-size:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 18px rgba(124,58,237,.4);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--txt);
  letter-spacing:-.3px;
  display:flex;
  flex-direction:column;
  line-height:1.25;
}
.brand-text em{
  font-style:normal;
  font-size:12.5px;
  font-weight:400;
  color:var(--muted);
  letter-spacing:.5px;
}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:14px;
}
.contact-mini{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:var(--muted);
}
.contact-mini i{color:var(--accent);}

/* ============ 频道行 ============ */
.channel-bar{
  background:var(--bg-elev);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:6px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:52px;
  padding:0 16px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  border-radius:999px;
  transition:color .22s ease,background-color .22s ease;
}
.channel-link:hover,.channel-link:focus{
  color:var(--txt);
  background:rgba(255,255,255,.05);
}
.channel-link.is-active{
  color:#fff;
  font-weight:600;
}
.channel-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  background:var(--primary-hi);
  border-radius:2px;
}

/* ============ 移动端抽屉 ============ */
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--txt);
  font-size:18px;
  cursor:pointer;
  transition:border-color .22s ease,background-color .22s ease;
}
.nav-toggle:hover{border-color:var(--primary);background:rgba(124,58,237,.14);}
.mobile-drawer{
  display:none;
  background:var(--bg-elev);
  border-bottom:1px solid var(--line);
  padding:10px 0 16px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  padding:13px 24px;
  font-size:15.5px;
  color:var(--muted);
  border-left:3px solid transparent;
  min-height:44px;
}
.mobile-drawer a.is-active{
  color:#fff;
  font-weight:600;
  border-left-color:var(--primary-hi);
  background:rgba(124,58,237,.12);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:13px 28px;
  border-radius:var(--radius-sm);
  font-size:15.5px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{
  background:var(--cta);
  color:#1A1024;
  box-shadow:0 8px 22px rgba(255,138,61,.25);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--cta-hover);
  color:#1A1024;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(255,138,61,.32);
}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,138,61,.35);}
.btn-ghost{
  background:transparent;
  color:var(--txt);
  border-color:var(--line);
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:var(--primary);
  background:rgba(124,58,237,.14);
  color:var(--txt);
  transform:translateY(-2px);
}
.btn-sm{
  min-height:40px;
  padding:9px 18px;
  font-size:14px;
  border-radius:var(--radius-xs);
}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid rgba(124,58,237,.35);
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center 32%;
  transform:scale(1.02);
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(115deg,rgba(13,10,24,.96) 0%,rgba(13,10,24,.86) 42%,rgba(30,16,58,.72) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
}
.cat-hero .hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding-top:52px;
  padding-bottom:44px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary-hi);text-decoration:underline;}
.breadcrumb .sep{color:rgba(166,160,194,.6);}
.breadcrumb .current{color:var(--txt);}
.cat-hero h1{
  font-size:44px;
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.25;
  max-width:760px;
}
.cat-hero .hero-sub{
  margin-top:14px;
  font-size:16.5px;
  color:var(--muted);
  max-width:640px;
}
.hero-tagline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  margin-bottom:16px;
  border-radius:999px;
  background:rgba(124,58,237,.2);
  color:var(--primary-hi);
  font-size:12.5px;
  letter-spacing:.4px;
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.sec-head{
  margin-bottom:28px;
  max-width:820px;
}
.sec-head h2{
  font-size:32px;
  line-height:1.3;
}
.sec-head .sec-desc{
  margin-top:14px;
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
}
.sec-bar{
  display:block;
  width:44px;
  height:6px;
  border-radius:999px;
  background:var(--primary);
  margin-bottom:18px;
}

/* ============ 导语区 ============ */
.lead-wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.lead-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  box-shadow:var(--shadow);
}
.lead-panel h2{
  font-size:30px;
  margin-bottom:16px;
}
.lead-panel p{
  color:var(--muted);
  font-size:16px;
  line-height:1.95;
}
.lead-panel p + p{margin-top:14px;}
.lead-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  background:var(--bg-elev);
}
.lead-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.lead-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(13,10,24,.05),rgba(13,10,24,.72));
}
.lead-figure figcaption{
  position:absolute;
  left:20px;
  right:20px;
  bottom:16px;
  z-index:2;
  font-size:13.5px;
  color:#fff;
}

/* ============ 要点提示（两栏） ============ */
.point-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:28px;
}
.point-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:18px 20px;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  border-radius:var(--radius-sm);
  font-size:15px;
  color:var(--txt);
  line-height:1.6;
}
.point-item i{
  color:var(--accent);
  font-size:16px;
  margin-top:4px;
}

/* ============ 快速自查清单 ============ */
.check-strip{
  background:var(--bg-elev);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px 32px;
  margin-top:26px;
}
.check-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:15.5px;
  color:var(--txt);
  min-height:44px;
}
.check-item i{
  color:var(--ok);
  font-size:15px;
  flex:0 0 auto;
}

/* ============ FAQ 手风琴 ============ */
.faq-block .group-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:19px;
  font-weight:700;
  margin:0 0 18px;
}
.faq-block .group-title span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;
  height:30px;
  border-radius:9px;
  background:rgba(34,211,238,.14);
  color:var(--accent);
  font-size:13.5px;
  font-weight:700;
}
.faq-block + .faq-block{margin-top:44px;}

.faq .accordion{
  background:transparent;
  border:0;
  margin:0;
}
.faq .accordion-item{
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:10px;
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq .accordion-item:hover{border-color:rgba(168,85,247,.4);}
.faq .accordion-item.is-active{
  border-color:rgba(124,58,237,.55);
  box-shadow:0 12px 30px rgba(124,58,237,.16);
}
.faq .accordion-title{
  position:relative;
  display:block;
  width:100%;
  background:transparent;
  border:0;
  border-bottom:0;
  padding:20px 58px 20px 24px;
  font-size:16.5px;
  font-weight:600;
  color:var(--txt);
  line-height:1.6;
  transition:color .22s ease;
}
.faq .accordion-title:hover,.faq .accordion-title:focus{color:var(--primary-hi);}
.faq .accordion-title:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:-2px;
}
.faq .accordion-title::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--primary-hi);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .22s ease;
}
.faq .accordion-item.is-active .accordion-title::before{transform:scaleY(1);}
.faq .accordion-title::after{
  content:"+";
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  color:var(--primary-hi);
  line-height:1;
  transition:transform .22s ease,color .22s ease;
}
.faq .accordion-item.is-active .accordion-title::after{
  content:"+";
  transform:translateY(-50%) rotate(45deg);
}
.faq .accordion-content{
  background:transparent;
  border:0;
  padding:0 24px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}
.faq .accordion-content p + p{margin-top:12px;}
.faq .accordion-content a{
  color:var(--accent);
  text-decoration:underline;
}
.faq .accordion-content a:hover{color:#67E8F9;}

/* ============ CTA 横条 ============ */
.cta-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:28px 32px;
  border:1px solid rgba(124,58,237,.6);
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(124,58,237,.2),rgba(34,211,238,.08));
  box-shadow:var(--shadow);
}
.cta-strip h3{
  font-size:22px;
  margin-bottom:6px;
}
.cta-strip p{
  font-size:14.5px;
  color:var(--muted);
}

/* ============ 弹层 ============ */
.reveal.consult-modal{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 24px 60px rgba(0,0,0,.6);
  max-width:520px;
  padding:30px;
  color:var(--txt);
}
.consult-modal h4{
  font-size:22px;
  margin-bottom:8px;
}
.consult-modal .modal-sub{
  font-size:14px;
  color:var(--muted);
  margin-bottom:20px;
}
.consult-modal .close-button{
  top:16px;
  right:18px;
  color:var(--muted);
  font-size:24px;
  line-height:1;
}
.consult-modal .close-button:hover{color:var(--txt);}
.field-row{margin-bottom:16px;}
.field-row label{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:8px;
}
.field-row input[type="text"],
.field-row input[type="tel"],
.field-row select,
.field-row textarea{
  width:100%;
  min-height:46px;
  padding:12px 14px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-xs);
  color:var(--txt);
  font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field-row textarea{min-height:88px;resize:vertical;}
.field-row input::placeholder,
.field-row textarea::placeholder{color:rgba(166,160,194,.75);}
.field-row input:focus,
.field-row select:focus,
.field-row textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(124,58,237,.28);
}
.consent{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  line-height:1.6;
  margin-bottom:18px;
}
.consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--primary);}
.privacy-note{
  font-size:12.5px;
  color:var(--muted);
  line-height:1.6;
  margin-top:12px;
}
.btn-block{width:100%;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0A0714;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  color:var(--muted);
  font-size:13.5px;
}
.footer-top{align-items:flex-start;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{max-width:320px;line-height:1.8;}
.footer-col h4{
  font-size:14.5px;
  color:var(--txt);
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--muted);font-size:13.5px;}
.footer-col ul li a:hover{color:var(--primary-hi);}
.contact-line{
  display:flex;
  align-items:flex-start;
  gap:9px;
  margin-bottom:12px;
  line-height:1.7;
}
.contact-line i{color:var(--accent);margin-top:4px;}
.footer-line{
  height:1px;
  background:var(--line);
  margin:36px 0 22px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .cat-hero h1{font-size:34px;}
  .lead-wrap{grid-template-columns:1fr;gap:28px;}
  .sec-head h2{font-size:26px;}
  .lead-panel h2{font-size:25px;}
  .point-grid{grid-template-columns:1fr 1fr;}
  .cta-strip{flex-direction:column;align-items:flex-start;}
  .cta-strip .btn{width:100%;}
}

@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .topbar-inner{min-height:56px;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;}
  .brand-text{font-size:15.5px;}
  .brand-text em{font-size:11.5px;}
  .contact-mini{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cat-hero{min-height:280px;}
  .cat-hero .hero-inner{padding-top:40px;padding-bottom:36px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .hero-sub{font-size:15px;}
  .section{padding:52px 0;}
  .section-tight{padding:48px 0;}
  .sec-head h2{font-size:23px;}
  .sec-head .sec-desc{font-size:15px;}
  .lead-panel{padding:24px;}
  .lead-panel h2{font-size:22px;}
  .lead-panel p{font-size:15px;}
  .point-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .faq .accordion-title{font-size:15.5px;padding:18px 50px 18px 20px;}
  .faq .accordion-content{padding:0 20px 18px;}
  .cta-strip{padding:22px;}
  .cta-strip h3{font-size:19px;}
  .site-footer{padding:48px 0 24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .reveal.consult-modal{width:92vw;padding:24px;}
}

@media screen and (max-width:519px){
  .cat-hero h1{font-size:25px;}
  .brand-text{max-width:180px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --bg:#0D0A18;
  --bg-elev:#151126;
  --surface:#1B1533;
  --line:rgba(255,255,255,.09);
  --txt:#ECE8FA;
  --muted:#A6A0C2;
  --primary:#7C3AED;
  --primary-hi:#A855F7;
  --accent:#22D3EE;
  --cta:#FF8A3D;
  --cta-hover:#FF9E5C;
  --ok:#34D399;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 16px 42px rgba(124,58,237,.28);
  --section-pad:88px;
  --grid-tex:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
             repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
}

/* ============ 基础 reset ============ */
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
a{color:var(--accent);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary-hi);}
:focus-visible{outline:2px solid var(--primary-hi);outline-offset:3px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1248px;
  margin:0 auto;
  padding:0 39px;
}
@media screen and (max-width:1023px){
  .container{padding:0 31px;}
}
@media screen and (max-width:639px){
  .container{padding:0 27px;}
}

/* ============ 通用排版 ============ */
.sec-title{
  font-size:32px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--txt);
  position:relative;
  padding-left:18px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:6px;
  height:.9em;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary-hi),var(--primary));
}
.sec-desc{
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
  margin-top:16px;
  max-width:760px;
}
.section{padding:var(--section-pad) 0;}
.section-alt{background:var(--bg-elev);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,10,24,.94);
  border-bottom:1px solid var(--line);
}
.brand-row{
  height:68px;
  display:flex;
  align-items:center;
  border-bottom:1px solid var(--line);
}
.brand-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--txt);
  font-weight:800;
  letter-spacing:-.2px;
}
.brand:hover{color:var(--txt);}
.brand-mark{
  width:36px;
  height:36px;
  flex:0 0 36px;
  border-radius:11px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  font-weight:800;
  color:#fff;
  background:linear-gradient(140deg,var(--primary-hi),var(--primary) 62%,#4C1D95);
  box-shadow:0 6px 18px rgba(124,58,237,.4);
}
.brand-text{
  display:inline-flex;
  flex-direction:column;
  font-size:17px;
  line-height:1.25;
}
.brand-text em{
  font-style:normal;
  font-size:12px;
  font-weight:400;
  color:var(--muted);
  letter-spacing:1.6px;
  margin-top:3px;
}
.brand-right{
  display:flex;
  align-items:center;
  gap:16px;
}
.brand-contact{
  font-size:13.5px;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  gap:7px;
  white-space:nowrap;
}
.brand-contact i{color:var(--accent);}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:11px;
  background:var(--bg-elev);
  cursor:pointer;
  padding:0;
  position:relative;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  margin:4px auto;
  background:var(--txt);
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-panel{
  display:none;
  background:var(--bg-elev);
  border-bottom:1px solid var(--line);
  padding:8px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a.mp-link{
  display:block;
  padding:13px 0 13px 14px;
  color:var(--muted);
  font-size:15.5px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.mobile-panel a.mp-link:hover{color:var(--txt);}
.mobile-panel a.mp-link.is-active{
  color:var(--txt);
  font-weight:700;
}
.mobile-panel a.mp-link.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
}
.mobile-panel .mp-foot{
  margin-top:16px;
  font-size:13.5px;
  color:var(--muted);
  display:flex;
  flex-direction:column;
  gap:8px;
}

.channel-bar{
  background:var(--bg-elev);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:4px;
  height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding-top:0;
  padding-bottom:0;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  position:relative;
  padding:0 16px;
  height:52px;
  display:inline-flex;
  align-items:center;
  font-size:15px;
  color:var(--muted);
  border-radius:8px;
  white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.channel-link:hover{
  color:var(--txt);
  background:rgba(255,255,255,.05);
}
.channel-link.is-active{
  color:var(--txt);
  font-weight:700;
}
.channel-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary-hi);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-weight:700;
  font-size:15.5px;
  line-height:1.2;
  padding:14px 28px;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-cta{
  background:var(--cta);
  color:#241203;
  box-shadow:0 8px 22px rgba(255,138,61,.22);
}
.btn-cta:hover{
  background:var(--cta-hover);
  color:#241203;
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(255,138,61,.32);
}
.btn-cta:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(255,138,61,.26);}
.btn-cta:focus{outline:none;box-shadow:0 0 0 3px rgba(255,138,61,.35);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--txt);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(124,58,237,.14);
  color:var(--txt);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{
  padding:9px 18px;
  font-size:14px;
  border-radius:10px;
}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-weight:600;
  font-size:15px;
  border-bottom:2px solid rgba(34,211,238,.45);
  padding-bottom:2px;
  transition:border-color .22s ease,color .22s ease,gap .22s ease;
}
.text-link:hover{
  color:var(--primary-hi);
  border-color:var(--primary-hi);
  gap:12px;
}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:14px 0;
  flex-wrap:wrap;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary-hi);text-decoration:underline;}
.crumb .sep{color:rgba(166,160,194,.5);}
.crumb .current{color:var(--txt);font-weight:600;}

/* ============ 页面 Hero（矮版） ============ */
.page-hero{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:url("/assets/images/backpic/back-2.png") center center / cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(13,10,24,.96) 0%,rgba(13,10,24,.86) 48%,rgba(124,58,237,.42) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:var(--grid-tex);
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--accent);
  background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.28);
  border-radius:999px;
  padding:5px 14px;
  height:26px;
  margin-bottom:16px;
}
.page-hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.5px;
  color:#fff;
}
.hero-sub{
  margin-top:14px;
  font-size:16.5px;
  color:#D4CEEA;
  max-width:620px;
}
.hero-action{margin-top:22px;}

/* ============ 导语板块 ============ */
.intro .lead{
  margin-top:18px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.95;
}
.intro .lead strong{color:var(--txt);font-weight:600;}
.side-note{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow);
}
.side-note h3{
  font-size:19px;
  font-weight:700;
  color:var(--txt);
  margin-bottom:12px;
}
.side-note ul li{
  font-size:15px;
  color:var(--muted);
  padding:9px 0 9px 22px;
  position:relative;
  line-height:1.75;
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.side-note ul li:last-child{border-bottom:0;padding-bottom:0;}
.side-note ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--accent);
  opacity:.85;
}

/* ============ 流程步骤 ============ */
.step-flow{margin-top:36px;}
.step-item{position:relative;}
.step-item::after{
  content:"";
  position:absolute;
  top:46px;
  right:-14px;
  width:28px;
  border-top:1px dashed rgba(255,255,255,.2);
  display:none;
}
.step-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px 26px;
  position:relative;
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-card:hover{
  transform:translateY(-4px);
  border-color:rgba(124,58,237,.55);
  box-shadow:var(--shadow-hover);
}
.step-num{
  display:block;
  font-size:46px;
  line-height:1;
  font-weight:800;
  letter-spacing:-2px;
  color:rgba(34,211,238,.3);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{
  font-size:19px;
  font-weight:700;
  color:var(--txt);
  margin-bottom:10px;
  line-height:1.5;
}
.step-card p{
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
@media screen and (min-width:1024px){
  .step-item:not(:last-child)::after{display:block;}
  .step-item:last-child::after{display:none;}
}
@media screen and (min-width:640px) and (max-width:1023px){
  .step-item:nth-child(odd)::after{display:block;}
}
@media screen and (max-width:639px){
  .step-item{margin-bottom:16px;}
}

/* ============ 要点清单 ============ */
.check-list{margin-top:34px;}
.check-item{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 20px;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:16px;
  transition:border-color .22s ease,background .22s ease;
}
.check-item:hover{border-color:rgba(124,58,237,.45);background:#191330;}
.check-icon{
  flex:0 0 34px;
  width:34px;
  height:34px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(124,58,237,.18);
  color:var(--primary-hi);
  font-size:14px;
}
.check-body h3{
  font-size:16.5px;
  font-weight:600;
  color:var(--txt);
  line-height:1.6;
}
.check-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
  margin-top:5px;
}

/* ============ 数据条 ============ */
.stat-band{
  position:relative;
  overflow:hidden;
  background:url("/assets/images/coverpic/cover-3.webp") center center / cover no-repeat;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(21,17,38,.97) 0%,rgba(21,17,38,.92) 52%,rgba(76,29,149,.78) 100%);
}
.stat-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:var(--grid-tex);
  opacity:.45;
  pointer-events:none;
}
.stat-band .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.stat-band h2{
  font-size:24px;
  font-weight:800;
  color:#fff;
  margin-bottom:8px;
  letter-spacing:-.2px;
}
.stat-band .band-sub{
  font-size:15px;
  color:#BDB6D8;
  margin-bottom:34px;
}
.stat-cell{
  border-left:1px solid rgba(255,255,255,.12);
  padding-left:22px;
  margin-bottom:20px;
}
.stat-num{
  font-size:48px;
  line-height:1.1;
  font-weight:800;
  letter-spacing:-1.5px;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-num em{
  font-style:normal;
  font-size:18px;
  font-weight:700;
  color:var(--accent);
  margin-left:6px;
  letter-spacing:0;
}
.stat-label{
  display:block;
  margin-top:10px;
  font-size:15px;
  font-weight:600;
  color:var(--txt);
}
.stat-note{
  display:block;
  margin-top:5px;
  font-size:13.5px;
  color:#A79FC7;
}

/* ============ FAQ 手风琴 ============ */
.faq-list{margin-top:32px;}
.accordion{
  background:transparent;
  margin:0;
  padding:0;
  list-style:none;
}
.accordion-item{
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:10px;
  overflow:hidden;
  position:relative;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item:hover{border-color:rgba(255,255,255,.18);}
.accordion-item.is-active{
  border-color:rgba(124,58,237,.5);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.accordion-item.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--primary);
}
.accordion-title{
  display:block;
  padding:20px 60px 20px 24px;
  font-size:16.5px;
  font-weight:600;
  line-height:1.65;
  color:var(--txt);
  background:transparent;
  border:0;
  position:relative;
  transition:color .22s ease,background .22s ease;
}
.accordion-title:hover{color:var(--primary-hi);background:rgba(255,255,255,.02);}
.accordion-title::before{
  content:"";
  position:absolute;
  right:26px;
  top:50%;
  width:14px;
  height:2px;
  margin-top:-1px;
  border-radius:2px;
  background:var(--primary-hi);
  border:0;
  transition:none;
}
.accordion-title::after{
  content:"";
  position:absolute;
  right:32px;
  top:50%;
  width:2px;
  height:14px;
  margin-top:-7px;
  border-radius:2px;
  background:var(--primary-hi);
  transition:transform .25s ease,opacity .25s ease;
}
.accordion-item.is-active > .accordion-title::after{transform:rotate(90deg);opacity:0;}
.accordion-item.is-active > .accordion-title{color:#fff;}
.accordion-content{
  display:none;
  padding:0 24px 22px 24px;
  background:transparent;
  border:0;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.accordion-content.is-open{display:block;}

/* ============ 表单区 ============ */
.apply-wrap{margin-top:0;}
.apply-copy h2{
  font-size:32px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--txt);
}
.apply-copy p.lede{
  margin-top:16px;
  color:var(--muted);
  font-size:16px;
}
.mini-list{margin-top:24px;}
.mini-list li{
  position:relative;
  padding:10px 0 10px 26px;
  font-size:15px;
  color:var(--txt);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.mini-list li:last-child{border-bottom:0;}
.mini-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:19px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary-hi);
}
.apply-note{
  margin-top:22px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--muted);
}
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 30px;
  box-shadow:var(--shadow);
}
.form-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--txt);
  margin-bottom:6px;
}
.form-card .form-tip-top{
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:22px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:8px;
}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  background:#100C1F;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--txt);
  font-size:15.5px;
  font-family:inherit;
  padding:0 14px;
  height:46px;
  line-height:46px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{
  height:auto;
  min-height:112px;
  padding:12px 14px;
  line-height:1.75;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:rgba(166,160,194,.7);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(124,58,237,.28);
  background:#130E24;
}
.field select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23A6A0C2' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
  cursor:pointer;
}
.field select option{background:#151126;color:var(--txt);}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
  margin:6px 0 20px;
}
.check-row input[type="checkbox"]{
  appearance:none;
  -webkit-appearance:none;
  flex:0 0 18px;
  width:18px;
  height:18px;
  margin:3px 0 0;
  border:1px solid var(--line);
  border-radius:5px;
  background:#100C1F;
  position:relative;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.check-row input[type="checkbox"]:checked{
  background:var(--primary);
  border-color:var(--primary);
}
.check-row input[type="checkbox"]:checked::after{
  content:"";
  position:absolute;
  left:5px;
  top:2px;
  width:5px;
  height:9px;
  border:solid #fff;
  border-width:0 2px 2px 0;
  transform:rotate(45deg);
}
.check-row input[type="checkbox"]:focus{outline:none;box-shadow:0 0 0 3px rgba(124,58,237,.28);}
.form-tip{
  margin-top:14px;
  font-size:13px;
  color:var(--ok);
  display:none;
}
.form-tip.is-visible{display:block;}
.form-privacy{
  margin-top:16px;
  font-size:12.5px;
  line-height:1.65;
  color:var(--muted);
}

/* ============ 页脚 ============ */
.site-footer{
  background:#090713;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  font-size:13.5px;
  color:var(--muted);
}
.footer-top{padding-bottom:8px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:13.5px;
  line-height:1.85;
  color:var(--muted);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--txt);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--muted);font-size:13.5px;}
.footer-col ul li a:hover{color:var(--primary-hi);}
.contact-line{
  display:flex;
  gap:9px;
  align-items:flex-start;
  margin-bottom:12px;
  line-height:1.7;
}
.contact-line i{color:var(--accent);margin-top:4px;}
.footer-line{
  height:1px;
  background:var(--line);
  margin:40px 0 22px;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(166,160,194,.85);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--section-pad:64px;}
  .sec-title{font-size:26px;}
  .page-hero h1{font-size:34px;}
  .page-hero{min-height:280px;}
  .stat-num{font-size:40px;}
  .apply-copy h2{font-size:26px;}
  .stat-band .container{padding-top:52px;padding-bottom:52px;}
}
@media screen and (max-width:767px){
  .brand-row{height:56px;}
  .brand-text{font-size:15px;}
  .brand-text em{font-size:11px;letter-spacing:1.1px;}
  .brand-contact{display:none;}
  .nav-toggle{display:block;}
  .brand-right .btn-sm{display:none;}
}
@media screen and (max-width:639px){
  :root{--section-pad:52px;}
  body{font-size:16px;}
  .sec-title{font-size:22px;padding-left:14px;}
  .sec-title::before{width:5px;}
  .sec-desc{font-size:15px;}
  .page-hero{min-height:0;padding:0;}
  .page-hero .container{padding-top:40px;padding-bottom:40px;}
  .page-hero h1{font-size:30px;letter-spacing:-.3px;}
  .hero-sub{font-size:15px;}
  .stat-cell{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-left:0;padding-top:18px;}
  .stat-num{font-size:34px;}
  .stat-num em{font-size:15px;}
  .step-num{font-size:38px;}
  .form-card{padding:22px 18px 24px;}
  .apply-copy h2{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-title{font-size:15.5px;padding:17px 54px 17px 18px;}
  .accordion-content{padding:0 18px 18px 18px;}
  .btn{padding:13px 22px;font-size:15px;}
  .btn-block{width:100%;}
  .hero-action .btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .step-card:hover,.btn-cta:hover{transform:none;}
}