/* roulang page: index */
:root{
  --brand:#6C4BFF;
  --brand-deep:#5636E8;
  --brand-2:#B44BFF;
  --accent:#FF7A3D;
  --accent-deep:#F06423;
  --cyan:#19E0C4;
  --bg:#F6F5FA;
  --dark:#14122B;
  --dark-2:#1D1B3A;
  --card:#FFFFFF;
  --border:#ECEAF5;
  --soft:#FAFAFF;
  --text:#17152B;
  --text-2:#5C5875;
  --text-3:#8B87A3;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 52%,#FF7A3D 100%);
  --grad-soft:linear-gradient(120deg,rgba(108,75,255,.12) 0%,rgba(180,75,255,.12) 52%,rgba(255,122,61,.12) 100%);
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-s:0 8px 28px rgba(23,21,43,.06);
  --shadow-m:0 12px 32px rgba(23,21,43,.10);
  --shadow-h:0 18px 40px rgba(108,75,255,.16);
  --ease:cubic-bezier(.4,.14,.3,1);
  --sec-y:104px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-deep)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:var(--sec-y) 0}
.section-alt{background:#fff}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 28px;border-radius:999px;
  font-weight:600;font-size:15px;line-height:1;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-position .35s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background-image:var(--grad);background-size:200% 100%;background-position:0 0;color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.28)}
.btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:0 16px 32px rgba(108,75,255,.34);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(108,75,255,.55);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(108,75,255,.08);border-color:var(--brand);transform:translateY(-2px);color:var(--brand-deep)}
.btn-outline{border-color:var(--border);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--brand);box-shadow:0 10px 26px rgba(10,8,30,.22)}
.btn-white:hover{transform:translateY(-2px);color:var(--brand-deep);box-shadow:0 16px 34px rgba(10,8,30,.28)}
.btn-block{width:100%}
.btn-sm{min-height:44px;padding:11px 22px;font-size:14px}

.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.7;font-weight:600;letter-spacing:.2px;
  background:rgba(25,224,196,.14);color:#0E9E8B;
}
.tag-purple{background:rgba(108,75,255,.12);color:var(--brand)}
.tag-orange{background:rgba(255,122,61,.14);color:#D9531B}

.section-head{margin-bottom:40px}
.section-head.center{text-align:center;max-width:780px;margin-left:auto;margin-right:auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
h2.section-title{font-size:32px;font-weight:700;line-height:1.32;letter-spacing:-.3px}
.section-sub{color:var(--text-2);font-size:16px;line-height:1.85;margin-top:14px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-s);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:rgba(108,75,255,.28)}
.cover-img{border-radius:var(--radius-md);width:100%;height:auto;object-fit:cover}

/* ---------- 导航 ---------- */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:120;
  padding:20px 0;
  transition:background-color .22s var(--ease),padding .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-bar{
  display:flex;align-items:center;gap:20px;
  padding:10px 14px 10px 20px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  box-shadow:0 12px 34px rgba(10,8,30,.26);
  transition:background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;line-height:1.2}
.brand:hover{color:#fff}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background-image:var(--grad);
  color:#fff;font-size:15px;font-weight:800;letter-spacing:-.5px;flex-shrink:0;
}
.brand-text{display:inline-flex;flex-wrap:wrap;gap:0 2px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:8px 16px;border-radius:999px;
  color:rgba(255,255,255,.86);font-size:15px;font-weight:600;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.16)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:3px;background-image:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:180px;height:44px;padding:0 42px 0 16px;
  border-radius:999px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.12);color:#fff;font-size:14px;
  transition:width .22s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-search input::placeholder{color:rgba(255,255,255,.62)}
.nav-search input:focus{width:220px;background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.55);outline:none}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border:0;border-radius:50%;background:transparent;
  color:rgba(255,255,255,.86);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-search button:hover{background:rgba(255,255,255,.18);color:#fff}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);
  color:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:currentColor}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 吸顶实底状态 */
.site-header.is-stuck{
  position:fixed;background:#fff;padding:10px 0;
  box-shadow:0 6px 20px rgba(23,21,43,.08);
  animation:dropIn .22s var(--ease);
}
@keyframes dropIn{from{transform:translateY(-100%)}to{transform:translateY(0)}}
.site-header.is-stuck .nav-bar{background:rgba(255,255,255,.96);border-color:var(--border);box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
.site-header.is-stuck .brand{color:var(--text)}
.site-header.is-stuck .nav-link{color:var(--text-2)}
.site-header.is-stuck .nav-link:hover{color:var(--brand);background:rgba(108,75,255,.08)}
.site-header.is-stuck .nav-link.is-active{color:var(--brand);background:rgba(108,75,255,.10)}
.site-header.is-stuck .nav-search input{background:var(--soft);border-color:var(--border);color:var(--text)}
.site-header.is-stuck .nav-search input::placeholder{color:var(--text-3)}
.site-header.is-stuck .nav-search input:focus{background:#fff;border-color:var(--brand)}
.site-header.is-stuck .nav-search button{color:var(--text-2)}
.site-header.is-stuck .nav-toggle{border-color:var(--border);background:var(--soft);color:var(--text)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:200;display:none;
}
.nav-drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(20,18,43,.55);backdrop-filter:blur(4px)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:rgba(20,18,43,.92);backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  border-left:1px solid rgba(255,255,255,.14);
  padding:26px 22px;display:flex;flex-direction:column;gap:6px;
  animation:slideIn .26s var(--ease);
}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-head .brand{font-size:16px}
.drawer-close{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;font-size:20px;cursor:pointer}
.drawer-link{
  display:flex;align-items:center;min-height:52px;padding:12px 16px;border-radius:var(--radius-sm);
  color:rgba(255,255,255,.9);font-size:18px;font-weight:600;
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(255,255,255,.12);color:#fff}
.drawer-cta{margin-top:auto;padding-top:18px}

/* ---------- Hero ---------- */
.hero{
  position:relative;isolation:isolate;overflow:hidden;color:#fff;
  padding:168px 0 104px;
  background-image:linear-gradient(120deg,rgba(20,18,43,.94) 0%,rgba(20,18,43,.82) 42%,rgba(108,75,255,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;width:620px;height:620px;right:-180px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(180,75,255,.55) 0%,rgba(108,75,255,0) 68%);
  opacity:.85;z-index:-1;
}
.hero::after{
  content:"";position:absolute;width:480px;height:480px;left:-160px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.42) 0%,rgba(255,122,61,0) 70%);
  z-index:-1;
}
.hero-grid{display:flex;align-items:center;gap:56px}
.hero-copy{flex:1 1 56%;min-width:0}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 18px;border-radius:999px;margin-bottom:22px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:.4px;color:rgba(255,255,255,.92);
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(25,224,196,.22);display:block}
h1.hero-title{
  font-size:52px;font-weight:800;line-height:1.24;letter-spacing:-.8px;
  margin-bottom:20px;text-shadow:0 6px 26px rgba(10,8,30,.35);
}
h1.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#CBB9FF 0%,#FFB48A 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.84);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{
  flex:1 1 130px;min-width:130px;
  padding:16px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(8px);
}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-.5px;line-height:1.2;color:#fff}
.stat b i{font-style:normal;font-size:16px;font-weight:700;color:var(--cyan);margin-left:2px}
.stat span{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-top:4px}
.hero-visual{flex:1 1 40%;min-width:0;position:relative}
.hero-visual img{
  width:100%;border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.24);
  box-shadow:0 28px 60px rgba(8,6,24,.5);
}
.hero-visual .float-card{
  position:absolute;left:-26px;bottom:26px;
  padding:14px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.94);color:var(--text);
  box-shadow:0 18px 40px rgba(8,6,24,.35);
  display:flex;align-items:center;gap:12px;
}
.hero-visual .float-card i{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background-image:var(--grad);color:#fff;font-style:normal;font-weight:800;font-size:15px;
}
.hero-visual .float-card b{display:block;font-size:15px;font-weight:700;line-height:1.3}
.hero-visual .float-card span{display:block;font-size:12px;color:var(--text-2)}

/* ---------- 价值主张 ---------- */
.value-grid{display:flex;gap:56px;align-items:center}
.value-copy{flex:1 1 52%;min-width:0}
.value-list{margin-top:26px;border-top:1px solid var(--border)}
.value-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--border)}
.value-num{
  flex-shrink:0;width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-soft);color:var(--brand);font-weight:800;font-size:16px;
}
.value-item h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:6px}
.value-item p{font-size:15px;color:var(--text-2);line-height:1.82}
.value-visual{flex:1 1 44%;min-width:0}
.value-visual img{border-radius:var(--radius-xl);box-shadow:var(--shadow-m)}

/* ---------- 功能分组 ---------- */
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-auto-rows:minmax(0,auto);gap:20px}
.feature-main{
  grid-row:span 2;
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(150deg,#241F52 0%,#14122B 62%);
  border-radius:var(--radius-xl);padding:36px;
  border:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;
}
.feature-main::before{
  content:"";position:absolute;width:340px;height:340px;right:-120px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(180,75,255,.55) 0%,rgba(180,75,255,0) 70%);
}
.feature-main .corner{
  position:absolute;right:0;top:0;
  padding:7px 18px;border-radius:0 0 0 16px;
  background-image:var(--grad);font-size:12px;font-weight:700;letter-spacing:.6px;
}
.feature-main h3{font-size:24px;font-weight:700;line-height:1.4;margin:10px 0 14px;position:relative}
.feature-main p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.76);position:relative;margin-bottom:22px}
.feature-main img{border-radius:var(--radius-md);margin-bottom:22px;position:relative}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px;position:relative;margin-top:auto}
.feature-tags span{
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.9);
}
.feature-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-s);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.feature-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-soft);color:var(--brand);font-weight:800;font-size:16px;margin-bottom:16px;
}
.feature-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:8px}
.feature-card p{font-size:14.5px;color:var(--text-2);line-height:1.82;margin-bottom:16px}
.feature-card .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}

/* ---------- 使用场景 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps::before{
  content:"";position:absolute;left:36px;right:36px;top:24px;height:2px;
  background:linear-gradient(90deg,rgba(108,75,255,.4),rgba(255,122,61,.4));
}
.step{position:relative;padding-top:0}
.step-num{
  position:relative;z-index:1;
  width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background-image:var(--grad);color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 10px 24px rgba(108,75,255,.3);margin-bottom:20px;
}
.step h3{font-size:19px;font-weight:600;margin-bottom:8px;line-height:1.5}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* ---------- 成功案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.case-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px 28px 26px;box-shadow:var(--shadow-s);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.case-card:nth-child(2){margin-top:28px}
.case-card::before{
  content:"\201C";position:absolute;right:24px;top:6px;
  font-size:86px;line-height:1;font-weight:800;color:rgba(108,75,255,.10);font-family:Georgia,serif;
}
.case-card blockquote{margin:0 0 22px;font-size:15.5px;line-height:1.9;color:var(--text-2)}
.case-meta{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--border)}
.case-avatar{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--grad-soft);color:var(--brand);font-weight:800;font-size:15px;flex-shrink:0;
}
.case-meta b{display:block;font-size:14.5px;font-weight:700;line-height:1.4}
.case-meta span{display:block;font-size:12.5px;color:var(--text-3)}
.case-stats{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.case-stats div{
  flex:1 1 100px;padding:10px 14px;border-radius:var(--radius-sm);
  background:var(--soft);border:1px solid var(--border);text-align:center;
}
.case-stats b{display:block;font-size:22px;font-weight:800;color:var(--brand);letter-spacing:-.3px;line-height:1.3}
.case-stats span{display:block;font-size:11.5px;color:var(--text-3)}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:center}
.price-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);
  padding:34px 28px;box-shadow:var(--shadow-s);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.price-card.featured{
  transform:scale(1.04);padding:42px 32px;
  border:2px solid transparent;
  background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;
  box-shadow:0 24px 56px rgba(108,75,255,.20);z-index:2;
}
.price-card.featured:hover{transform:scale(1.04) translateY(-4px)}
.price-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  padding:6px 20px;border-radius:999px;background-image:var(--grad);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:1px;white-space:nowrap;
  box-shadow:0 8px 20px rgba(108,75,255,.32);
}
.price-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.price-desc{font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.price-value{display:flex;align-items:flex-end;gap:6px;margin-bottom:6px}
.price-value b{font-size:44px;font-weight:800;line-height:1;letter-spacing:-1.5px;color:var(--text)}
.price-card.featured .price-value b{
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.price-value span{font-size:14px;color:var(--text-3);padding-bottom:5px}
.price-note{font-size:12.5px;color:var(--text-3);margin-bottom:22px}
.price-list{border-top:1px solid var(--border);padding-top:20px;margin-bottom:26px}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.75;padding:7px 0}
.price-list li::before{
  content:"\2713";flex-shrink:0;width:20px;height:20px;margin-top:5px;border-radius:50%;
  background:rgba(25,224,196,.16);color:#0E9E8B;font-size:11px;
  display:flex;align-items:center;justify-content:center;font-weight:700;
}
.price-foot{text-align:center;font-size:14px;color:var(--text-3);margin-top:34px}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.news-head .link-more{
  font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.news-head .link-more::after{content:"→";transition:transform .2s var(--ease)}
.news-head .link-more:hover::after{transform:translateX(4px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-s);color:var(--text);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:rgba(108,75,255,.28);color:var(--text)}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.05)}
.news-cover .tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand);backdrop-filter:blur(6px)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
.news-foot .arrow{color:var(--brand);font-weight:700;transition:transform .2s var(--ease)}
.news-card:hover .news-foot .arrow{transform:translateX(4px)}
.news-empty{
  grid-column:1/-1;text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed var(--border);border-radius:var(--radius-xl);
}
.news-empty .empty-icon{
  width:72px;height:72px;border-radius:22px;margin:0 auto 18px;
  background:var(--grad-soft);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:30px;font-weight:800;
}
.news-empty p{color:var(--text-2);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.faq-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);padding:10px 28px;box-shadow:var(--shadow-s)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex-shrink:0;margin-left:auto;width:12px;height:12px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg) translateY(-3px);transition:transform .25s var(--ease),border-color .2s var(--ease);
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-3px);border-color:var(--brand)}
.faq-item summary:hover{color:var(--brand)}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:760px}
.faq-aside{
  background:linear-gradient(160deg,#241F52 0%,#14122B 70%);color:#fff;
  border-radius:var(--radius-xl);padding:32px 28px;position:sticky;top:110px;overflow:hidden;
}
.faq-aside::before{
  content:"";position:absolute;width:260px;height:260px;right:-110px;bottom:-110px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.4) 0%,rgba(255,122,61,0) 70%);
}
.faq-aside h3{font-size:21px;font-weight:700;margin-bottom:12px;position:relative}
.faq-aside p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.76);margin-bottom:22px;position:relative}
.faq-aside .btn{position:relative}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;text-align:center;
  padding:88px 0;
  background-image:var(--grad);
  background-size:180% 100%;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14);
}
.cta-band::before{width:340px;height:340px;left:-120px;top:-140px}
.cta-band::after{width:280px;height:280px;right:-90px;bottom:-150px}
.cta-inner{position:relative;z-index:1;max-width:720px;margin:0 auto}
.cta-band h2{font-size:34px;font-weight:800;line-height:1.35;margin-bottom:14px;letter-spacing:-.4px}
.cta-band p{font-size:16px;color:rgba(255,255,255,.88);margin-bottom:30px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;font-size:14px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.8);font-size:13px;font-weight:700;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.footer-social a:hover{background-image:var(--grad);color:#fff}
.site-footer h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.4px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:#fff}
.footer-form{display:flex;gap:10px}
.footer-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.07);
  color:#fff;font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.42)}
.footer-form input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 4px rgba(108,75,255,.22)}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:12px;display:flex;gap:10px}
.footer-contact li b{color:rgba(255,255,255,.86);font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.46);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  :root{--sec-y:88px}
  h1.hero-title{font-size:44px}
  .hero-grid{gap:40px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-main{grid-column:span 2;grid-row:auto}
}
@media screen and (max-width:1023px){
  :root{--sec-y:72px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .hero{padding:150px 0 80px}
  h1.hero-title{font-size:38px}
  .hero-grid{flex-direction:column;align-items:flex-start}
  .hero-visual{width:100%}
  .hero-visual .float-card{left:16px;bottom:16px}
  .value-grid{flex-direction:column;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .case-grid,.price-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .case-card:nth-child(2){margin-top:0}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .faq-layout{grid-template-columns:1fr}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  h2.section-title{font-size:27px}
  .cta-band h2{font-size:28px}
}
@media screen and (max-width:639px){
  :root{--sec-y:56px}
  .grid-container{padding-left:16px;padding-right:16px}
  .section-head{margin-bottom:28px}
  .site-header{padding:12px 0}
  .nav-bar{padding:8px 10px 8px 14px;gap:10px}
  .brand{font-size:14px;flex-direction:column;align-items:flex-start;gap:0;line-height:1.25}
  .brand .brand-mark{display:none}
  .brand-text{display:flex;flex-direction:column;gap:0}
  .hero{padding:120px 0 64px}
  h1.hero-title{font-size:31px;letter-spacing:-.4px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:10px}
  .stat{flex:1 1 calc(50% - 5px);min-width:0;padding:14px 16px}
  .stat b{font-size:24px}
  .hero-visual .float-card{left:10px;bottom:10px;padding:10px 14px}
  .hero-visual .float-card i{width:34px;height:34px;font-size:13px}
  h2.section-title{font-size:23px;line-height:1.35}
  .section-sub{font-size:15px}
  .card{padding:20px}
  .feature-grid{grid-template-columns:1fr}
  .feature-main{grid-column:auto;padding:26px}
  .steps{grid-template-columns:1fr;gap:20px}
  .step{display:flex;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--border)}
  .step-num{margin-bottom:0;width:42px;height:42px;font-size:15px}
  .case-grid,.price-grid,.news-grid{grid-template-columns:1fr}
  .price-card.featured{padding:34px 26px}
  .price-value b{font-size:38px}
  .cta-band{padding:62px 0}
  .cta-band h2{font-size:24px}
  .cta-band .btn{width:100%}
  .faq-panel{padding:6px 20px}
  .faq-item summary{font-size:16px;padding:18px 0;gap:12px}
  .faq-aside{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:40px}
  .footer-form{flex-direction:column}
  .footer-form input{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .news-head{margin-bottom:26px}
}

/* roulang page: article */
:root{
  --brand:#6C4BFF;
  --brand-2:#B44BFF;
  --accent:#FF7A3D;
  --cyan:#19E0C4;
  --bg:#F6F5FA;
  --dark:#14122B;
  --card:#FFFFFF;
  --line:#ECEAF5;
  --soft:#FAFAFF;
  --text:#17152B;
  --muted:#5C5875;
  --weak:#8B87A3;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 52%,#FF7A3D 100%);
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 28px rgba(23,21,43,.06);
  --shadow-hover:0 18px 40px rgba(108,75,255,.16);
  --shadow-nav:0 6px 20px rgba(23,21,43,.08);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#5232e0;text-decoration:underline;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
::selection{background:rgba(108,75,255,.2);}
:focus-visible{outline:3px solid rgba(108,75,255,.45);outline-offset:2px;border-radius:6px;}

/* ---------- 容器与栅格 ---------- */
.grid-container{max-width:1200px!important;padding-left:24px!important;padding-right:24px!important;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:32px;font-weight:700;letter-spacing:-.3px;}
.section-sub{color:var(--muted);font-size:15px;margin-top:8px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:rgba(108,75,255,.08);border-radius:999px;padding:6px 14px;letter-spacing:.4px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  line-height:1;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-position .4s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
  text-decoration:none!important;white-space:nowrap;
}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--grad);background-size:180% 180%;background-position:0% 50%;color:#fff;box-shadow:0 8px 20px rgba(108,75,255,.24);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(108,75,255,.32);background-position:100% 50%;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid rgba(108,75,255,.45);}
.btn-ghost:hover{background:rgba(108,75,255,.07);color:var(--brand);transform:translateY(-2px);text-decoration:none;}
.btn-invert{background:#fff;color:var(--brand);box-shadow:0 10px 26px rgba(0,0,0,.18);}
.btn-invert:hover{color:var(--brand);transform:translateY(-2px);text-decoration:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.55);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-stuck{background:rgba(255,255,255,.96);box-shadow:var(--shadow-nav);border-bottom-color:var(--line);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none!important;color:var(--text);}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(108,75,255,.3);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-weight:800;font-size:17px;letter-spacing:-.2px;}
.brand-text span:last-child{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:1.6px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--muted);text-decoration:none!important;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--brand);background:rgba(108,75,255,.07);}
.nav-link.is-active{color:var(--brand);font-weight:600;background:rgba(108,75,255,.09);}
.nav-link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;width:18px;height:3px;border-radius:3px;background:var(--grad);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:999px;padding:4px 6px 4px 14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.nav-search:focus-within{border-color:rgba(108,75,255,.55);box-shadow:0 0 0 4px rgba(108,75,255,.12);}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;color:var(--text);width:132px;padding:6px 0;}
.nav-search input::placeholder{color:var(--weak);}
.nav-search button{width:32px;height:32px;border-radius:50%;border:0;background:rgba(108,75,255,.1);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s var(--ease);}
.nav-search button:hover{background:rgba(108,75,255,.2);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;position:relative;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s var(--ease);}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:translateX(-50%) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:translateX(-50%) rotate(-45deg);}

/* 移动抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:80;background:rgba(20,18,43,.5);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:rgba(255,255,255,.97);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s var(--ease);box-shadow:-14px 0 40px rgba(23,21,43,.18);
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:20px;color:var(--muted);line-height:1;}
.drawer-link{display:block;padding:14px 12px;border-radius:14px;font-size:18px;font-weight:600;color:var(--text);text-decoration:none!important;border-bottom:1px solid var(--line);}
.drawer-link.is-active{color:var(--brand);background:rgba(108,75,255,.08);}
.drawer-cta{margin-top:18px;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:140px 0 48px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F5FA 100%);
}
.page-head::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;border-radius:50%;background:radial-gradient(circle,rgba(108,75,255,.16),rgba(108,75,255,0) 70%);}
.page-head::after{content:"";position:absolute;width:380px;height:380px;left:-140px;bottom:-220px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,61,.14),rgba(255,122,61,0) 70%);}
.page-head .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px;}
.breadcrumb a{color:var(--weak);text-decoration:none;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9C5DA;}
.breadcrumb .current{color:var(--brand);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:clamp(30px,4.2vw,48px);font-weight:800;letter-spacing:-.6px;line-height:1.28;max-width:940px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:14px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C5DA;}
.article-meta .tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:rgba(25,224,196,.14);color:#0E9E8A;font-size:12.5px;font-weight:600;
}
.title-rule{height:1px;background:linear-gradient(90deg,var(--line),rgba(236,234,245,0));margin-top:26px;}

/* ---------- 文章正文 ---------- */
.article-wrap{padding:0 0 96px;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:52px 56px;max-width:860px;margin:0 auto;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text);word-wrap:break-word;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;padding-left:18px;
  margin:2em 0 .85em;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:5px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:19px;font-weight:600;margin:1.7em 0 .6em;}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--muted);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#5232e0;}
.article-body img{border-radius:var(--radius);margin:1.5em auto;box-shadow:var(--shadow);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-radius:0 var(--radius) var(--radius) 0;
  border-left:5px solid var(--brand);
  background:linear-gradient(90deg,rgba(108,75,255,.08),rgba(255,122,61,.05));
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.55em;}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand);}
.article-body ol{counter-reset:olc;}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:.6em;counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.2em;width:22px;height:22px;border-radius:50%;
  background:rgba(108,75,255,.12);color:var(--brand);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;display:block;overflow-x:auto;}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap;}
.article-body table thead th{background:var(--soft);font-weight:600;}
.article-body table tbody tr:nth-child(even){background:#FBFBFE;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--weak);margin-top:10px;}
.article-body code{background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14.5px;color:var(--brand);}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}

/* 未找到 */
.not-found{text-align:center;padding:26px 8px 10px;}
.not-found .nf-icon{width:74px;height:74px;border-radius:24px;background:var(--grad);margin:0 auto 22px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:30px;font-weight:800;}
.not-found h2{font-size:24px;margin-bottom:12px;}
.not-found p{color:var(--muted);margin-bottom:24px;}

/* ---------- 上下篇 ---------- */
.post-nav{max-width:860px;margin:32px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
  color:var(--text);text-decoration:none!important;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.3);}
.post-nav .pn-label{font-size:12.5px;color:var(--weak);letter-spacing:.6px;}
.post-nav .pn-title{font-size:15.5px;font-weight:600;line-height:1.55;}
.post-nav .pn-next{align-items:flex-end;text-align:right;}
.post-nav .pn-arrow{color:var(--brand);font-weight:700;font-size:15px;}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.22);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-cover img{transform:scale(1.05);}
.card-cover .chip{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--brand);font-size:12.5px;font-weight:600;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body h3 a{color:var(--text);text-decoration:none!important;}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--weak);}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;padding:22px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16.5px;font-weight:600;color:var(--text);transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);background:var(--soft);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-q .faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:rgba(108,75,255,.1);color:var(--brand);position:relative;transition:transform .25s var(--ease),background-color .2s var(--ease);}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:currentColor;border-radius:2px;}
.faq-q .faq-icon::before{width:12px;height:2px;}
.faq-q .faq-icon::after{width:2px;height:12px;transition:transform .25s var(--ease);}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a-inner{padding:0 26px 24px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);
  padding:80px 0;text-align:center;color:#fff;
}
.cta-band::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:.24;}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(25,224,196,.32),rgba(25,224,196,0) 70%);right:-120px;top:-180px;}
.cta-band .grid-container{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(26px,3.6vw,36px);font-weight:800;letter-spacing:-.4px;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.76);max-width:620px;margin:0 auto 30px;font-size:16px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:76px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;}
.site-footer h3{color:#fff;font-size:15.5px;font-weight:600;margin-bottom:18px;letter-spacing:.3px;}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap;}
.footer-social a{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);font-size:13px;text-decoration:none!important;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:rgba(108,75,255,.6);color:#fff;transform:translateY(-2px);}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.7);font-size:14.5px;text-decoration:none!important;transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-form{display:flex;gap:10px;}
.footer-form input{
  flex:1;min-width:0;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:12px 14px;font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.42);}
.footer-form input:focus{border-color:rgba(108,75,255,.8);box-shadow:0 0 0 4px rgba(108,75,255,.2);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:8px;}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 断点 ---------- */
@media screen and (max-width:1199px){
  .rec-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
}
@media screen and (max-width:1023px){
  .grid-container{padding-left:20px!important;padding-right:20px!important;}
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:block;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .section-title{font-size:27px;}
  .article-card{padding:38px 34px;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .page-head{padding:126px 0 40px;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:24px;}
  .section-title{font-size:23px;}
  .nav-bar{height:68px;}
  .nav-actions .btn-primary{display:none;}
  .page-head{padding:112px 0 32px;}
  .breadcrumb .current{max-width:220px;}
  .article-card{padding:26px 22px;border-radius:var(--radius);}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:17.5px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{align-items:flex-start;text-align:left;}
  .rec-grid{grid-template-columns:1fr;gap:18px;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 20px;}
  .cta-band{padding:60px 0;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:16px!important;padding-right:16px!important;}
  .brand-text{font-size:15px;}
  .brand-text span:last-child{font-size:11px;letter-spacing:1.2px;}
  .article-meta{font-size:13px;}
  .footer-form{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand:#6C4BFF;
  --brand-deep:#4F2FE0;
  --brand-2:#B44BFF;
  --accent:#FF7A3D;
  --cyan:#19E0C4;
  --bg:#F6F5FA;
  --ink:#14122B;
  --card:#FFFFFF;
  --card-soft:#FAFAFF;
  --border:#ECEAF5;
  --text:#17152B;
  --text-2:#5C5875;
  --text-3:#8B87A3;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 52%,#FF7A3D 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-xs:12px;
  --sh-1:0 8px 28px rgba(23,21,43,.06);
  --sh-2:0 18px 40px rgba(108,75,255,.16);
  --sh-nav:0 6px 20px rgba(23,21,43,.08);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);text-decoration:underline;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:-.01em;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:3px solid rgba(108,75,255,.45);outline-offset:2px;}

.grid-container{max-width:1200px;width:100%;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:999px;padding:15px 30px;
  font-size:15.5px;font-weight:600;line-height:1.2;
  text-decoration:none;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-position .25s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--grad);background-size:190% 100%;background-position:0 0;
  color:#fff;box-shadow:0 12px 26px rgba(108,75,255,.28);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:0 18px 36px rgba(108,75,255,.34);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  background:transparent;color:var(--brand);
  border:1.5px solid rgba(108,75,255,.55);
}
.btn-outline:hover{background:rgba(108,75,255,.08);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{
  background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.85);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--brand);box-shadow:0 14px 30px rgba(20,18,43,.18);}
.btn-white:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 20px 40px rgba(20,18,43,.24);}
.btn-sm{padding:11px 20px;font-size:14px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.14);
  transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(20,18,43,.95);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:var(--sh-nav);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:22px;height:74px;}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  display:inline-grid;place-items:center;width:42px;height:42px;flex:0 0 42px;
  border-radius:13px;background:var(--grad);color:#fff;
  font-weight:800;font-size:15px;letter-spacing:-.02em;
  box-shadow:0 8px 20px rgba(108,75,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:700;font-size:15px;letter-spacing:.01em;}
.brand-text span{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;color:rgba(255,255,255,.82);
  font-size:15.5px;font-weight:500;padding:10px 2px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff;text-decoration:none;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  border-radius:999px;padding:4px 5px 4px 15px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-search:focus-within{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.45);}
.nav-search input{
  width:138px;background:transparent;border:0;outline:none;
  color:#fff;font-size:14px;line-height:1.4;
}
.nav-search input::placeholder{color:rgba(255,255,255,.62);}
.nav-search button{
  width:32px;height:32px;border-radius:50%;border:0;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search button:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(108,75,255,.4);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;position:relative;transition:background .2s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#fff;
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

/* ============ 页头横幅 ============ */
.page-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:158px 0 82px;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,18,43,.95) 0%,rgba(20,18,43,.80) 45%,rgba(108,75,255,.45) 100%);
}
.page-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;text-decoration:none;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--cyan);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:#fff;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  padding:6px 15px;border-radius:999px;margin-bottom:18px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:inline-block;}
.page-hero h1{
  color:#fff;font-size:46px;font-weight:800;letter-spacing:-.02em;
  max-width:900px;margin-bottom:18px;
}
.page-hero-sub{color:rgba(255,255,255,.76);font-size:17px;max-width:680px;}
.badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.badge{
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-sm);
  padding:14px 22px;min-width:154px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.badge:hover{transform:translateY(-3px);background:rgba(255,255,255,.14);}
.badge b{display:block;font-size:30px;font-weight:800;line-height:1.15;color:#fff;letter-spacing:.01em;}
.badge b em{font-style:normal;font-size:15px;color:var(--cyan);margin-left:3px;}
.badge span{font-size:13px;color:rgba(255,255,255,.7);}

/* ============ 板块通用 ============ */
.section{padding:100px 0;}
.section-alt{background:#fff;}
.section-tint{background:linear-gradient(180deg,#F6F5FA 0%,#F1EFF9 100%);}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:32px;font-weight:700;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16.5px;}
.section-head .eyebrow{color:var(--brand);background:rgba(108,75,255,.10);border-color:rgba(108,75,255,.18);}
.section-head .eyebrow i{background:var(--accent);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;line-height:1.6;
  padding:4px 13px;border-radius:999px;
  color:var(--brand);background:rgba(108,75,255,.10);
  border:1px solid rgba(108,75,255,.14);
}
.tag-cyan{color:#0E8E7C;background:rgba(25,224,196,.16);border-color:rgba(25,224,196,.28);}
.tag-orange{color:#C24F16;background:rgba(255,122,61,.14);border-color:rgba(255,122,61,.24);}

/* ============ 时间轴 ============ */
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:43px;top:22px;bottom:32px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(108,75,255,.6),rgba(180,75,255,.5),rgba(255,122,61,.5));
}
.tl-item{position:relative;padding:0 0 28px 96px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:16px;top:0;width:56px;height:56px;border-radius:50%;
  background:#fff;border:1px solid var(--border);
  box-shadow:0 8px 28px rgba(23,21,43,.08);
  display:grid;place-items:center;
  font-weight:800;font-size:17px;color:var(--brand);letter-spacing:.02em;
}
.tl-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:26px 30px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(108,75,255,.22);}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tl-body p{color:var(--text-2);font-size:15.5px;}
.tl-body .tag-row{margin-top:14px;}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center;}
.split.reverse .split-media{order:2;}
.figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:0 24px 56px rgba(23,21,43,.14);}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.figure:hover img{transform:scale(1.03);}
.figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,18,43,0) 45%,rgba(20,18,43,.5) 100%);pointer-events:none;}
.figure-tip{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:var(--r-xs);
  padding:12px 16px;font-size:13.5px;font-weight:600;color:var(--text);
  box-shadow:0 12px 26px rgba(20,18,43,.18);
}
.figure-tip em{font-style:normal;color:var(--accent);font-weight:800;}
.check-list{margin-top:6px;}
.check-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px dashed var(--border);}
.check-list li:last-child{border-bottom:0;}
.check-list .num{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(108,75,255,.28);
}
.check-list h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.check-list p{color:var(--text-2);font-size:15px;}

/* ============ 设备横条 ============ */
.device-list{display:grid;gap:16px;}
.device-item{
  display:grid;grid-template-columns:60px 1fr auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-sm);
  padding:24px 28px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.device-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(108,75,255,.2);}
.device-icon{
  width:60px;height:60px;border-radius:18px;
  background:linear-gradient(120deg,rgba(108,75,255,.14),rgba(25,224,196,.18));
  display:grid;place-items:center;color:var(--brand);
}
.device-item h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.device-item p{color:var(--text-2);font-size:15px;}
.device-item .tag-row{margin-top:0;justify-content:flex-end;max-width:260px;}

/* ============ 问题速查卡 ============ */
.prob-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.prob-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.prob-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad);opacity:0;transition:opacity .2s var(--ease);
}
.prob-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.prob-card:hover::before{opacity:1;}
.prob-card .ico{
  width:46px;height:46px;border-radius:14px;margin-bottom:18px;
  background:rgba(255,122,61,.14);color:#C24F16;
  display:grid;place-items:center;font-weight:800;font-size:15px;
}
.prob-card h3{font-size:17.5px;font-weight:600;margin-bottom:10px;}
.prob-card p{color:var(--text-2);font-size:14.5px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr 330px;gap:40px;align-items:start;}
.faq-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:10px 30px;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border);display:grid;place-items:center;
  color:var(--text-3);font-size:15px;line-height:1;font-weight:700;
  transition:transform .25s var(--ease),color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .arrow{transform:rotate(45deg);color:#fff;background:var(--brand);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 40px 24px 0;color:var(--text-2);font-size:15.5px;}
.faq-aside{
  background:var(--ink);border-radius:var(--r-lg);padding:32px;color:rgba(255,255,255,.76);
  position:relative;overflow:hidden;
}
.faq-aside::before{
  content:"";position:absolute;right:-60px;top:-60px;width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.6),transparent 70%);
}
.faq-aside h3{color:#fff;font-size:20px;margin-bottom:12px;position:relative;}
.faq-aside p{font-size:14.5px;position:relative;margin-bottom:20px;}
.faq-aside ul{position:relative;margin-bottom:24px;}
.faq-aside ul li{font-size:14px;padding:9px 0 9px 22px;position:relative;color:rgba(255,255,255,.72);}
.faq-aside ul li::before{
  content:"";position:absolute;left:0;top:17px;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);
}
.faq-aside .btn{position:relative;width:100%;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);
  padding:86px 0;color:#fff;text-align:center;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(255,255,255,.35),transparent 68%);
}
.cta-band::before{width:340px;height:340px;left:-120px;top:-140px;opacity:.5;}
.cta-band::after{width:420px;height:420px;right:-150px;bottom:-200px;opacity:.4;}
.cta-band .grid-container{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:34px;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:16.5px;max-width:620px;margin:0 auto 30px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:78px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:18px;margin-bottom:18px;}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:14px;}
.site-footer p{font-size:14.5px;line-height:1.8;}
.site-footer h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px;}
.footer-links li{margin-bottom:13px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-links a:hover{color:#fff;text-decoration:none;}
.footer-social{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;}
.footer-social a{
  display:inline-block;padding:7px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.8);font-size:13.5px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none;transform:translateY(-2px);}
.footer-form{display:flex;gap:10px;margin-top:18px;}
.footer-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-xs);
  padding:12px 14px;color:#fff;outline:none;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.45);}
.footer-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(108,75,255,.28);}
.footer-contact li{font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.66);}
.footer-contact b{color:rgba(255,255,255,.88);font-weight:600;}
.footer-bottom{
  margin-top:56px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .prob-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav-toggle{display:grid;}
  .nav-search{display:none;}
  .main-nav{
    position:fixed;inset:0;z-index:55;
    background:rgba(20,18,43,.97);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    gap:0;padding:112px 28px 40px;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  body.nav-open .main-nav{opacity:1;visibility:visible;transform:none;}
  body.nav-open{overflow:hidden;}
  .nav-link{width:100%;font-size:19px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.09);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--cyan);}
  .section{padding:78px 0;}
  .page-hero{padding:132px 0 68px;}
  .page-hero h1{font-size:36px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .split.reverse .split-media{order:0;}
  .faq-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px;}
}
@media (max-width:767px){
  .section{padding:62px 0;}
  .section-head h2{font-size:26px;}
  .page-hero{padding:118px 0 58px;}
  .page-hero h1{font-size:31px;}
  .page-hero-sub{font-size:15.5px;}
  .badges{gap:12px;}
  .badge{flex:1 1 44%;min-width:140px;padding:12px 16px;}
  .badge b{font-size:25px;}
  .device-item{grid-template-columns:1fr;gap:14px;}
  .device-item .tag-row{justify-content:flex-start;max-width:none;}
  .prob-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .tl-item{padding-left:74px;}
  .timeline::before{left:29px;}
  .tl-dot{width:44px;height:44px;left:8px;font-size:14px;}
  .tl-body{padding:22px 20px;}
  .faq-list{padding:6px 20px;}
  .faq-a p{padding-right:0;}
}
@media (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .brand-text{flex-direction:column;font-size:13.5px;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:13.5px;}
  .badge{flex:1 1 100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#6C4BFF;
  --brand-2:#B44BFF;
  --accent:#FF7A3D;
  --mint:#19E0C4;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 52%,#FF7A3D 100%);
  --bg:#F6F5FA;
  --ink:#14122B;
  --text:#17152B;
  --muted:#5C5875;
  --weak:#8B87A3;
  --card:#FFFFFF;
  --soft:#FAFAFF;
  --line:#ECEAF5;
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-card:0 8px 28px rgba(23,21,43,.06);
  --sh-hover:0 18px 40px rgba(108,75,255,.16);
  --sh-nav:0 6px 20px rgba(23,21,43,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec:112px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#4A2EE0;text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(108,75,255,.42);outline-offset:2px;border-radius:8px;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
h1,h2,h3{line-height:1.3;color:var(--text);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.24;}
h2{font-size:clamp(24px,3vw,33px);}
h3{font-size:clamp(18px,1.7vw,21px);font-weight:600;}
p{color:var(--muted);}

.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  color:#fff;
  background:rgba(255,255,255,.07);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.site-header.is-scrolled{
  background:#FFFFFF;
  color:var(--text);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-nav);
}
.site-header .grid-container{max-width:1240px;}
.nav-bar{display:flex;align-items:center;gap:26px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;flex-shrink:0;}
.brand:hover{text-decoration:none;color:inherit;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 8px 20px rgba(108,75,255,.32);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;font-weight:800;font-size:15px;letter-spacing:.02em;}
.brand-text span:last-child{font-size:12px;font-weight:600;opacity:.78;letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;color:inherit;text-decoration:none;font-size:15px;font-weight:600;
  padding:10px 14px;border-radius:999px;opacity:.86;transition:opacity .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{opacity:1;text-decoration:none;background:rgba(255,255,255,.14);color:inherit;}
.site-header.is-scrolled .nav-link:hover{background:var(--soft);color:var(--brand);}
.nav-link.is-active{opacity:1;color:#fff;background:rgba(255,255,255,.16);}
.site-header.is-scrolled .nav-link.is-active{color:#fff;background:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:4px;height:42px;padding:0 5px 0 14px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  border-radius:999px;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-search input{
  width:138px;height:100%;border:0;background:transparent;color:#fff;font-size:14px;margin:0;
}
.nav-search input::placeholder{color:rgba(255,255,255,.74);}
.nav-search input:focus{outline:none;}
.nav-search button{
  width:32px;height:32px;flex-shrink:0;border:0;border-radius:50%;
  background:rgba(255,255,255,.2);color:#fff;display:grid;place-items:center;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search button:hover{background:rgba(255,255,255,.34);transform:scale(1.06);}
.site-header.is-scrolled .nav-search{background:#F4F3FA;border-color:var(--line);}
.site-header.is-scrolled .nav-search input{color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--weak);}
.site-header.is-scrolled .nav-search button{background:var(--brand);color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);
  position:relative;color:inherit;
}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);background:var(--soft);}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:19px;height:2px;border-radius:2px;background:currentColor;
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-scrim{
  position:fixed;inset:0;background:rgba(20,18,43,.5);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
body.nav-open .nav-scrim{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--grad);background-size:160% 100%;color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.26);}
.btn-primary:hover{background-position:100% 0;color:#fff;box-shadow:0 16px 32px rgba(108,75,255,.34);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:rgba(108,75,255,.08);color:var(--brand);}
.btn-ghost{background:#fff;color:var(--brand);box-shadow:0 10px 26px rgba(20,18,43,.2);}
.btn-ghost:hover{color:#4A2EE0;box-shadow:0 16px 34px rgba(20,18,43,.26);}
.btn-sm{padding:11px 20px;font-size:14px;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:170px 0 86px;
  background:#14122B;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,18,43,.94) 0%,rgba(35,26,86,.86) 46%,rgba(20,18,43,.72) 100%);
}
.page-hero .grid-container{position:relative;z-index:2;}
.hero-glow{
  position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.55),rgba(108,75,255,0) 68%);
  top:-220px;right:-120px;z-index:1;pointer-events:none;
}
.hero-glow.two{
  width:420px;height:420px;left:-160px;top:120px;
  background:radial-gradient(circle,rgba(255,122,61,.36),rgba(255,122,61,0) 70%);
}
.hero-crumb{font-size:13px;color:rgba(255,255,255,.68);margin-bottom:18px;}
.hero-crumb a{color:rgba(255,255,255,.78);}
.hero-crumb a:hover{color:#fff;}
.hero-crumb span{margin:0 8px;opacity:.6;}
.page-hero h1{color:#fff;max-width:900px;}
.page-hero h1 em{font-style:normal;background:linear-gradient(100deg,#19E0C4,#FF7A3D);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{max-width:760px;margin-top:22px;font-size:17px;color:rgba(255,255,255,.78);}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-pills li{
  font-size:13px;font-weight:600;color:#fff;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
}
.hero-pills li b{color:var(--mint);font-weight:800;}

/* ---------- 板块通用 ---------- */
.sec{padding:var(--sec) 0;}
.sec-alt{background:#fff;}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);background:rgba(108,75,255,.1);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.sec-head h2{margin-bottom:14px;}
.sec-head p{font-size:16.5px;}

/* ---------- 图文交错 ---------- */
.zigzag{display:flex;flex-direction:column;gap:88px;}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.zig-row:nth-child(even) .zig-media{order:2;}
.zig-media{position:relative;}
.zig-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--sh-card);transition:box-shadow .24s var(--ease),transform .24s var(--ease);
}
.zig-media:hover img{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.zig-media::after{
  content:"";position:absolute;inset:auto -18px -18px auto;width:120px;height:120px;
  border-radius:var(--r-lg);
  background:var(--grad);opacity:.12;z-index:-1;
}
.zig-index{
  display:inline-grid;place-items:center;width:52px;height:52px;border-radius:16px;
  background:var(--soft);border:1px solid var(--line);
  color:var(--brand);font-weight:800;font-size:18px;margin-bottom:18px;
}
.zig-body h3{margin-bottom:14px;}
.zig-body p{margin-bottom:12px;}
.tag-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.tag-list li{
  font-size:12.5px;font-weight:600;color:var(--brand);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  box-shadow:0 2px 8px rgba(23,21,43,.03);
}
.zig-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:34px 34px 30px;box-shadow:var(--sh-card);}
.zig-row:nth-child(even) .zig-body{background:#fff;}
.zig-note{
  margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);
  font-size:14px;color:var(--weak);
}

/* ---------- 宽幅配图 ---------- */
.figure-wide{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-card);}
.figure-wide img{width:100%;height:clamp(240px,40vw,420px);object-fit:cover;border-radius:0;}
.figure-wide figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 30px;color:#fff;font-size:15px;
  background:linear-gradient(to top,rgba(20,18,43,.88),rgba(20,18,43,0));
}
.figure-wide figcaption b{color:var(--mint);font-weight:800;}

/* ---------- 数据速览 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;box-shadow:var(--sh-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(108,75,255,.28);}
.stat-num{font-size:34px;font-weight:800;letter-spacing:-.02em;color:var(--brand);line-height:1.1;}
.stat-num small{font-size:15px;font-weight:700;margin-left:3px;color:var(--accent);}
.stat-card p{margin-top:8px;font-size:14px;color:var(--muted);}

/* ---------- 清单要点 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px;margin-top:8px;}
.check-list li{
  position:relative;padding-left:30px;font-size:15.5px;color:var(--muted);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  background:var(--mint);opacity:.9;
  box-shadow:inset 0 0 0 3px #fff;
}
.check-list li b{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:44px;align-items:start;}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-card);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 58px 22px 28px;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:28px;top:50%;width:12px;height:12px;
  border-right:2px solid var(--weak);border-bottom:2px solid var(--weak);
  transform:translateY(-70%) rotate(45deg);transition:transform .24s var(--ease),border-color .2s var(--ease);
}
.faq-item summary:hover{color:var(--brand);background:var(--soft);}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand);}
.faq-body{padding:0 28px 24px;font-size:15.5px;color:var(--muted);}
.faq-aside{
  background:#14122B;color:#fff;border-radius:var(--r-xl);padding:34px 30px;
  box-shadow:0 18px 44px rgba(20,18,43,.22);
}
.faq-aside h3{color:#fff;margin-bottom:12px;}
.faq-aside p{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:22px;}
.faq-aside .dot-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
.faq-aside .dot-row li{
  font-size:12.5px;font-weight:600;color:#fff;
  padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;text-align:center;
  padding:84px 0;background:var(--grad);background-size:180% 100%;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.1);
}
.cta-band::before{width:320px;height:320px;top:-140px;left:-90px;}
.cta-band::after{width:260px;height:260px;bottom:-130px;right:-70px;}
.cta-band .grid-container{position:relative;z-index:2;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.86);max-width:640px;margin:0 auto 30px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-band .btn-outline{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.16);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#14122B;color:rgba(255,255,255,.72);padding:76px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:16px;margin-bottom:18px;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14.5px;line-height:1.85;}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14.5px;}
.footer-links a:hover{color:#fff;text-decoration:none;}
.footer-social{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.footer-social a{
  font-size:13px;font-weight:600;color:rgba(255,255,255,.8);
  padding:7px 15px;border-radius:999px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
}
.footer-social a:hover{background:rgba(255,255,255,.2);color:#fff;text-decoration:none;}
.footer-form{display:flex;gap:10px;margin-top:6px;}
.footer-form input{
  flex:1;min-width:0;height:44px;margin:0;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.5);}
.footer-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,75,255,.28);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:9px;}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:88px;}
  .grid-container{padding-left:22px;padding-right:22px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .nav-search{display:none;}
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;top:0;right:0;z-index:120;
    width:min(84vw,340px);height:100vh;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:104px 26px 36px;margin:0;
    background:rgba(20,18,43,.94);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-left:1px solid rgba(255,255,255,.14);
    transform:translateX(103%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .nav-link{color:#fff;font-size:18px;font-weight:600;padding:15px 16px;opacity:.88;}
  .nav-link:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;}
  .nav-link.is-active{color:#fff;background:var(--brand);}
  .site-header.is-scrolled .nav-link{color:#fff;}
  .site-header.is-scrolled .nav-link:hover{background:rgba(255,255,255,.12);color:#fff;}
  .site-header.is-scrolled .nav-link.is-active{background:var(--brand);color:#fff;}
  .zig-row{grid-template-columns:1fr;gap:28px;}
  .zig-row:nth-child(even) .zig-media{order:0;}
  .zig-media{order:-1;}
  .zig-media::after{display:none;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .page-hero{padding:150px 0 72px;}
}
@media (max-width:639px){
  :root{--sec:56px;}
  body{font-size:15.5px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .nav-bar{height:66px;gap:12px;}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:13px;}
  .brand-text{font-size:13.5px;}
  .brand-text span:last-child{font-size:11px;}
  .nav-bar .btn-sm{padding:10px 16px;font-size:13px;}
  .page-hero{padding:132px 0 60px;}
  .hero-lead{font-size:15.5px;}
  .zig-body{padding:24px 22px;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .check-list{grid-template-columns:1fr;}
  .faq-item summary{padding:18px 50px 18px 20px;font-size:15.5px;}
  .faq-item summary::after{right:20px;}
  .faq-body{padding:0 20px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .cta-band{padding:64px 0;}
  .figure-wide figcaption{padding:18px 18px;font-size:14px;}
}

/* roulang page: category3 */
:root{
  --brand:#6C4BFF;
  --brand-deep:#4B2FE0;
  --brand-2:#B44BFF;
  --accent:#FF7A3D;
  --mint:#19E0C4;
  --bg:#F6F5FA;
  --dark:#14122B;
  --ink:#17152B;
  --ink-2:#5C5875;
  --ink-3:#8B87A3;
  --card:#FFFFFF;
  --line:#ECEAF5;
  --soft:#FAFAFF;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 52%,#FF7A3D 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 28px rgba(23,21,43,.06);
  --sh-2:0 18px 40px rgba(108,75,255,.16);
  --sh-3:0 6px 20px rgba(23,21,43,.08);
  --sec:104px;
  --ease:cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-md)}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4{margin:0 0 16px;line-height:1.3;color:var(--ink);font-weight:700}
h1{font-size:clamp(30px,4vw,50px);font-weight:800;letter-spacing:-.02em;line-height:1.24}
h2{font-size:clamp(25px,2.7vw,32px);line-height:1.28}
h3{font-size:20px;font-weight:600}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:3px solid rgba(108,75,255,.45);outline-offset:2px;border-radius:8px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.show-for-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  padding:16px 0;
  transition:padding .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-bar{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  border-radius:999px;
  padding:10px 14px 10px 18px;
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  box-shadow:0 10px 30px rgba(20,18,43,.18);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;flex:0 0 auto}
.brand:hover{color:#fff;text-decoration:none}
.brand-mark{
  display:grid;place-items:center;width:42px;height:42px;border-radius:14px;
  background:var(--grad);color:#fff;font-weight:800;font-size:16px;letter-spacing:.02em;
  box-shadow:0 8px 18px rgba(108,75,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;font-weight:700;font-size:15px;color:#fff}
.brand-text span:last-child{font-size:12.5px;font-weight:500;opacity:.82;letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;border-radius:999px;
  color:rgba(255,255,255,.86);font-size:15.5px;font-weight:500;
  text-decoration:none;transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14);text-decoration:none}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.18)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;width:18px;height:3px;
  border-radius:3px;background:var(--accent);transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.24);
  border-radius:999px;padding:4px 6px 4px 14px;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.nav-search input{
  width:126px;background:transparent;border:0;color:#fff;font-size:14px;
  padding:6px 0;outline:none;
}
.nav-search input::placeholder{color:rgba(255,255,255,.66)}
.nav-search button{
  width:32px;height:32px;border-radius:50%;border:0;
  background:rgba(255,255,255,.2);color:#fff;display:grid;place-items:center;
  transition:background .2s var(--ease);padding:0;
}
.nav-search button:hover{background:rgba(255,255,255,.34)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;border-radius:50%;
  border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.14);
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative;transition:background .2s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* 吸顶实底 */
.site-header.is-stuck{
  padding:8px 0;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-3);
}
.site-header.is-stuck .nav-bar{
  background:transparent;border-color:transparent;box-shadow:none;
  backdrop-filter:none;-webkit-backdrop-filter:none;
}
.site-header.is-stuck .brand,
.site-header.is-stuck .brand-text{color:var(--ink)}
.site-header.is-stuck .brand-text span:last-child{color:var(--ink-3)}
.site-header.is-stuck .nav-link{color:var(--ink-2)}
.site-header.is-stuck .nav-link:hover{color:var(--brand);background:rgba(108,75,255,.08)}
.site-header.is-stuck .nav-link.is-active{color:var(--brand);background:rgba(108,75,255,.1)}
.site-header.is-stuck .nav-search{background:rgba(108,75,255,.06);border-color:var(--line)}
.site-header.is-stuck .nav-search input{color:var(--ink)}
.site-header.is-stuck .nav-search input::placeholder{color:var(--ink-3)}
.site-header.is-stuck .nav-search button{background:rgba(108,75,255,.12);color:var(--brand)}
.site-header.is-stuck .nav-toggle{border-color:var(--line);background:rgba(108,75,255,.08)}
.site-header.is-stuck .nav-toggle span,
.site-header.is-stuck .nav-toggle span::before,
.site-header.is-stuck .nav-toggle span::after{background:var(--ink)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);background-size:160% 160%;color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.28)}
.btn-primary:hover{color:#fff;background-position:100% 50%;box-shadow:0 16px 34px rgba(108,75,255,.36)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(108,75,255,.08);color:var(--brand)}
.btn-ghost-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.18);color:#fff}
.btn-white{background:#fff;color:var(--brand);box-shadow:0 12px 30px rgba(20,18,43,.18)}
.btn-white:hover{color:var(--brand-deep);background:#fff}
.btn-sm{padding:10px 18px;font-size:14px}

/* ============ 页头横幅 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:168px 0 88px}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.38;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg,rgba(20,18,43,.96) 0%,rgba(20,18,43,.80) 48%,rgba(108,75,255,.52) 100%);
}
.page-hero::after{
  content:"";position:absolute;z-index:1;width:540px;height:540px;right:-150px;top:-180px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,122,61,.38),transparent 68%);
}
.page-hero .grid-container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(25,224,196,.16);border:1px solid rgba(25,224,196,.45);
  color:#9ff5e7;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.page-hero h1{color:#fff;max-width:17em}
.hero-lead{font-size:17.5px;color:rgba(255,255,255,.78);max-width:660px;margin:18px 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:680px}
.stat{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:18px;padding:16px 18px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.stat b{display:block;font-size:30px;font-weight:800;color:#fff;line-height:1.15;letter-spacing:-.01em}
.stat b em{font-style:normal;color:var(--mint)}
.stat span{font-size:13px;color:rgba(255,255,255,.7)}

/* ============ 板块通用 ============ */
.section{padding:var(--sec) 0}
.section-soft{background:#fff}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{margin-bottom:14px}
.section-head p{margin:0;color:var(--ink-2)}
.eyebrow{
  display:inline-block;margin-bottom:12px;font-size:12.5px;font-weight:700;
  letter-spacing:.14em;color:var(--brand);
}

/* ============ 对照表 ============ */
.table-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:10px;overflow:hidden;
}
.table-scroll{overflow-x:auto;border-radius:16px}
.risk-table{width:100%;border-collapse:collapse;min-width:760px;font-size:15px;margin:0;background:#fff}
.risk-table thead th{
  background:var(--soft);color:var(--ink);font-weight:700;font-size:14px;
  text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.risk-table tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;
}
.risk-table tbody tr:nth-child(even){background:#FBFAFF}
.risk-table tbody tr:hover{background:rgba(108,75,255,.05)}
.risk-table tbody tr:last-child td{border-bottom:0}
.risk-table td strong{color:var(--ink);font-weight:600}
.scroll-note{display:none;margin:12px 4px 0;font-size:13px;color:var(--ink-3)}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,75,255,.28)}
.info-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.info-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.info-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.info-card h3{font-size:18.5px;margin-bottom:10px}
.info-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}
.info-card .tags{margin-top:auto}

/* ============ 标签 ============ */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:rgba(108,75,255,.1);color:var(--brand);font-size:12.5px;font-weight:600;
}
.tag-mint{background:rgba(25,224,196,.16);color:#0C9C88}
.tag-warm{background:rgba(255,122,61,.13);color:#D4551A}

/* ============ 图文双栏 + 清单 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media img{border-radius:var(--r-lg);box-shadow:var(--sh-1);width:100%}
.check-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list .num{
  flex:0 0 36px;width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:700;font-size:14px;
}
.check-list h3{font-size:17px;margin:0 0 6px}
.check-list p{margin:0;font-size:14.5px;color:var(--ink-2)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.faq-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:6px 28px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:22px 0;text-align:left;font-size:16.5px;font-weight:600;
  color:var(--ink);transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(108,75,255,.1);color:var(--brand);font-size:15px;line-height:1;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-item.is-open .ico{background:var(--brand);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 0 22px;margin:0;font-size:15px;color:var(--ink-2);max-width:62ch}
.faq-item.is-open .faq-a{max-height:460px}
.faq-aside{
  background:var(--dark);color:rgba(255,255,255,.76);border-radius:var(--r-lg);
  padding:30px 26px;box-shadow:var(--sh-1);
}
.faq-aside h3{color:#fff;font-size:18px;margin-bottom:12px}
.faq-aside p{font-size:14.5px;margin-bottom:20px}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--grad);
  color:#fff;padding:72px 0;text-align:center;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.3),transparent 70%);
}
.cta-band::before{width:340px;height:340px;left:-90px;top:-120px}
.cta-band::after{width:280px;height:280px;right:-70px;bottom:-120px}
.cta-band .grid-container{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.88);max-width:640px;margin:0 auto 28px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;font-size:15px}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:18px}
.site-footer p{font-size:14.5px}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.footer-social a{
  padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.8);font-size:13.5px;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:12px;padding:12px 14px;color:#fff;font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.5)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,61,.22)}
.footer-contact li{font-size:14px;margin-bottom:8px}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  :root{--sec:76px}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);margin:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    padding:104px 26px 40px;overflow-y:auto;z-index:95;
    background:rgba(20,18,43,.97);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    transform:translateX(105%);transition:transform .3s var(--ease);
    box-shadow:-20px 0 50px rgba(20,18,43,.35);
  }
  body.nav-open .main-nav{transform:translateX(0)}
  .main-nav .nav-link{
    color:#fff;font-size:18px;padding:16px 6px;border-radius:0;
    border-bottom:1px solid rgba(255,255,255,.1);background:none!important;
  }
  .main-nav .nav-link.is-active{color:var(--mint)}
  .main-nav .nav-link.is-active::after{left:6px;bottom:12px;transform:none;width:22px}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .split{gap:36px}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .grid-container{padding-left:16px;padding-right:16px}
  :root{--sec:56px}
  .page-hero{padding:132px 0 62px}
  h1{font-size:clamp(28px,7vw,34px)}
  .hero-lead{font-size:16px}
  .stat-row{grid-template-columns:1fr 1fr;max-width:100%}
  .stat b{font-size:26px}
  .card-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .faq-list{padding:2px 20px}
  .scroll-note{display:block}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:56px 0}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr}
  .nav-bar{padding:8px 10px 8px 12px;gap:10px}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:15px}
  .brand-text{font-size:14px}
  .brand-text span:last-child{font-size:11.5px}
  .footer-form{flex-direction:column}
}