/* roulang page: index */
:root{
  --c-bg:#060A16;
  --c-bg-2:#0A1020;
  --c-brand:#3D7BFF;
  --c-brand-2:#7C5CFF;
  --c-accent:#22E6C8;
  --c-cta:#FF7A3D;
  --c-cta-2:#FF5E3A;
  --c-text:#E8EEFB;
  --c-text-2:#A7B4CC;
  --c-text-3:#6C7A96;
  --c-line:rgba(130,170,255,.14);
  --c-line-strong:rgba(130,170,255,.32);
  --c-card:rgba(255,255,255,.045);
  --c-surface:#0D1426;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --inner-light:inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.2,.7,.2,1);
  --gap:24px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;
  background-color:var(--c-bg);
  background-image:
    radial-gradient(120% 60% at 50% -10%, rgba(61,123,255,.16), rgba(6,10,22,0) 62%),
    repeating-linear-gradient(to right, rgba(130,170,255,.035) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(to bottom, rgba(130,170,255,.03) 0 1px, transparent 1px 72px);
  background-repeat:no-repeat,repeat,repeat;
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:15px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.28;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(61,123,255,.4);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1500px){.container{max-width:1320px;}}

/* ---------- 通用组件 ---------- */
.glass{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card),var(--inner-light);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .glass{background:var(--c-surface);}
}
.section{padding:96px 0;}
.section-alt{background:var(--c-bg-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head .tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--c-accent);letter-spacing:1px;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(34,230,200,.28);
  background:rgba(34,230,200,.1);
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);}
.section-head .lead{color:var(--c-text-2);font-size:14px;margin-top:10px;max-width:560px;}
.section-link{font-size:14px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.section-link:hover{color:var(--c-accent);}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:6px 10px;border-radius:var(--r-pill);
  border:1px solid rgba(61,123,255,.35);background:rgba(61,123,255,.12);color:#9FC0FF;
}
.badge-pill.is-time{border-color:var(--c-line);background:rgba(255,255,255,.04);color:var(--c-text-2);}
.badge-pill.is-hot{border-color:rgba(255,122,61,.4);background:rgba(255,122,61,.12);color:#FFB08A;}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  text-align:center;
}
.btn-cta{
  background:linear-gradient(135deg,var(--c-cta),var(--c-cta-2));
  color:#1A0A02;
  box-shadow:0 10px 30px rgba(255,110,60,.22);
}
.btn-cta:hover{color:#1A0A02;transform:translateY(-1px);box-shadow:0 14px 34px rgba(255,110,60,.38);}
.btn-cta:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border:1px solid var(--c-line-strong);color:var(--c-text);
}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px);}
.btn-x[disabled],.btn-x.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:10px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;}
.nav-top{
  background:rgba(6,10,22,.86);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
@supports not ((backdrop-filter:blur(16px)) or (-webkit-backdrop-filter:blur(16px))){
  .nav-top{background:#080D1B;}
}
.nav-top-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:600;font-size:19px;letter-spacing:.4px;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-2));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 22px rgba(61,123,255,.35),var(--inner-light);
}
.brand-text{font-size:19px;}
.nav-tools{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  padding:5px 6px 5px 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:rgba(34,230,200,.6);box-shadow:0 0 0 3px rgba(34,230,200,.12);}
.nav-search input{
  background:transparent;border:0;outline:none;color:var(--c-text);
  width:170px;font-size:14px;line-height:1.6;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search button{
  width:32px;height:32px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
}
.search-toggle{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--c-line);background:rgba(255,255,255,.04);color:var(--c-text-2);
  cursor:pointer;
}
.search-toggle:hover{color:var(--c-accent);border-color:var(--c-line-strong);}
.nav-channels{
  background:rgba(8,13,27,.8);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
@supports not ((backdrop-filter:blur(16px)) or (-webkit-backdrop-filter:blur(16px))){
  .nav-channels{background:#0A1020;}
}
.channels-wrap{position:relative;}
.channels-wrap::before,.channels-wrap::after{
  content:'';position:absolute;top:0;bottom:0;width:36px;pointer-events:none;z-index:2;
}
.channels-wrap::before{left:0;background:linear-gradient(90deg,rgba(8,13,27,.96),rgba(8,13,27,0));}
.channels-wrap::after{right:0;background:linear-gradient(270deg,rgba(8,13,27,.96),rgba(8,13,27,0));}
.channels{
  display:flex;gap:10px;align-items:center;height:52px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channels::-webkit-scrollbar{display:none;}
.channel-pill{
  scroll-snap-align:start;flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--c-text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-pill:hover{color:var(--c-text);border-color:var(--c-line-strong);}
.channel-pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 8px 24px rgba(61,123,255,.4),inset 0 1px 0 rgba(255,255,255,.2);
}

/* ---------- Hero ---------- */
.hero{padding:72px 0 96px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1px;color:#9FC0FF;
  border:1px solid rgba(61,123,255,.35);background:rgba(61,123,255,.12);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.hero h1{font-size:clamp(28px,4vw,46px);letter-spacing:.4px;margin-bottom:18px;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--c-brand) 0%,var(--c-accent) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--c-text-2);font-size:16px;max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-mini{display:flex;flex-wrap:wrap;gap:28px;}
.hero-mini .mi-label{font-size:13px;color:var(--c-text-3);}
.hero-mini .mi-value{font-size:20px;font-weight:600;color:var(--c-accent);font-variant-numeric:tabular-nums;}
.hero-mini .mi-value span{font-size:12px;color:var(--c-text-3);font-weight:400;margin-left:3px;}
.hero-visual{position:relative;min-height:400px;border-radius:20px;overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-card);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,.66),rgba(6,10,22,.8));}
.hero-float{
  position:absolute;left:22px;right:22px;bottom:22px;
  padding:18px;border-radius:var(--r-card);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-card),var(--inner-light);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-float img{border-radius:10px;width:100%;height:132px;object-fit:cover;margin-bottom:14px;}
.hero-float h3{font-size:16px;margin-bottom:6px;}
.hero-float p{font-size:13px;color:var(--c-text-2);line-height:1.6;}

/* ---------- 指标看板 ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.metric-card{padding:24px;border-radius:var(--r-card);}
.metric-card .m-name{font-size:13px;color:var(--c-text-3);margin-bottom:10px;}
.metric-card .m-num{
  font-size:clamp(26px,3vw,40px);font-weight:600;color:var(--c-accent);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.metric-card .m-unit{font-size:12px;color:var(--c-text-3);margin-left:6px;font-weight:400;}
.metric-card .m-foot{
  margin-top:14px;padding-top:12px;border-top:1px solid var(--c-line);
  font-size:12px;color:var(--c-text-2);display:flex;align-items:center;gap:8px;
}
.dot-up{color:var(--c-accent);}
.dot-warn{color:var(--c-cta);}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--gap);}
.bento-card{
  grid-column:span 2;
  padding:26px;border-radius:var(--r-card);
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.bento-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);}
.bento-card--lead{grid-column:span 4;padding:0;flex-direction:row;align-items:stretch;}
.bento-card--lead .bento-media{flex:1 1 46%;min-height:280px;position:relative;overflow:hidden;}
.bento-card--lead .bento-media img{width:100%;height:100%;object-fit:cover;}
.bento-card--lead .bento-media::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,10,22,0),rgba(6,10,22,.55));}
.bento-card--lead .bento-body{flex:1 1 54%;padding:30px;}
.bento-card--tall{grid-column:span 2;justify-content:space-between;}
.bento-ico{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(61,123,255,.28),rgba(124,92,255,.18));
  border:1px solid rgba(130,170,255,.22);color:#9FC0FF;font-size:17px;margin-bottom:16px;
}
.bento-card h3{font-size:18px;margin-bottom:10px;}
.bento-card p{font-size:14px;color:var(--c-text-2);line-height:1.72;}
.bento-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.bento-foot{margin-top:20px;font-size:13px;color:var(--c-text-3);display:flex;align-items:center;gap:8px;}

/* ---------- 频道滑区 ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;-ms-overflow-style:none;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.rail-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);}
.rail-card .rail-img{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rail-card .rail-img img{width:100%;height:100%;object-fit:cover;}
.rail-card .rail-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,0) 40%,rgba(6,10,22,.75));}
.rail-body{padding:18px;}
.rail-body h3{font-size:16px;margin-bottom:8px;}
.rail-body p{font-size:13px;color:var(--c-text-2);line-height:1.65;}
.rail-hint{font-size:12px;color:var(--c-text-3);margin-top:16px;display:flex;align-items:center;gap:8px;}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.news-card{
  display:block;color:inherit;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-card);
  box-shadow:var(--shadow-card),var(--inner-light);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);color:inherit;}
.news-card .news-img{position:relative;aspect-ratio:16/9;overflow:hidden;}
.news-card .news-img img{width:100%;height:100%;object-fit:cover;}
.news-card .news-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,0) 45%,rgba(6,10,22,.7));}
.news-body{padding:20px;}
.news-body h3{
  font-size:17px;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:13px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;font-size:13px;color:var(--c-text-3);}
.news-card--feature{grid-column:1 / -1;display:grid;grid-template-columns:1.05fr 1fr;}
.news-card--feature .news-img{aspect-ratio:auto;height:100%;min-height:280px;}
.news-card--feature .news-body{padding:32px;display:flex;flex-direction:column;justify-content:center;}
.news-card--feature .news-body h3{font-size:22px;-webkit-line-clamp:2;}
.news-card--feature .news-body p{font-size:14px;-webkit-line-clamp:3;margin-top:4px;}
.news-more{margin-top:16px;font-size:13px;color:var(--c-brand);display:inline-flex;align-items:center;gap:8px;}
.news-card:hover .news-more{color:var(--c-accent);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;border-radius:var(--r-card);
  border:1px dashed var(--c-line);background:var(--c-card);
}
.empty-state i{font-size:30px;color:var(--c-text-3);display:block;margin-bottom:16px;}
.empty-state p{font-size:14px;color:var(--c-text-2);margin-bottom:18px;}

/* ---------- 结果对比 ---------- */
.compare{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-card);}
.compare-head,.compare-row{display:grid;grid-template-columns:1fr 1fr;}
.compare-head{background:rgba(61,123,255,.1);border-bottom:1px solid var(--c-line);}
.compare-head div{padding:16px 26px;font-size:13px;letter-spacing:1px;color:var(--c-text-2);}
.compare-row{border-bottom:1px solid var(--c-line);}
.compare-row:last-child{border-bottom:0;}
.compare-row > div{padding:20px 26px;font-size:14.5px;}
.compare-left{color:var(--c-text-3);display:flex;align-items:center;gap:10px;}
.compare-right{
  color:var(--c-text);border-left:3px solid var(--c-accent);
  background:rgba(34,230,200,.045);display:flex;align-items:center;gap:10px;
}
.compare-right i{color:var(--c-accent);font-size:13px;}
.compare-row .row-tag{display:none;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  background:transparent;color:var(--c-text);font-size:15.5px;font-weight:500;
  padding:20px 24px;box-shadow:none;display:flex;align-items:center;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){background:rgba(61,123,255,.09);color:var(--c-text);}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button::after{display:none;}
.faq-num{font-variant-numeric:tabular-nums;font-size:13px;color:var(--c-accent);flex:0 0 auto;}
.faq-plus{position:relative;width:16px;height:16px;flex:0 0 16px;margin-left:auto;}
.faq-plus::before,.faq-plus::after{
  content:'';position:absolute;background:var(--c-accent);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-plus::before{left:0;top:7px;width:16px;height:2px;}
.faq-plus::after{top:0;left:7px;width:2px;height:16px;}
.faq-accordion .accordion-button:not(.collapsed) .faq-plus::after{transform:rotate(90deg);opacity:0;}
.faq-accordion .accordion-body{
  background:var(--c-surface);color:var(--c-text-2);font-size:14px;line-height:1.8;
  padding:20px 24px 24px 56px;
}

/* ---------- 转化表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-info h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:16px;}
.contact-info p{color:var(--c-text-2);font-size:15px;margin-bottom:24px;}
.contact-points li{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px;font-size:14px;color:var(--c-text-2);}
.contact-points i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.form-panel{padding:32px;border-radius:var(--r-card);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(6,10,22,.72);border:1px solid var(--c-line);color:var(--c-text);
  outline:none;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3);}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-line-strong);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(34,230,200,.75);box-shadow:0 0 0 2px rgba(34,230,200,.18);
}
.field textarea{min-height:118px;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field-error{font-size:14px;color:var(--c-cta);margin-top:8px;display:none;}
.field.has-error .field-error{display:block;}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:rgba(255,122,61,.7);}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);margin:4px 0 22px;}
.check-line input{width:16px;height:16px;margin-top:3px;accent-color:var(--c-brand);flex:0 0 16px;}
.form-actions{display:flex;justify-content:flex-end;}
.form-note{font-size:12px;color:var(--c-text-3);margin-top:14px;text-align:right;}
.form-success{
  display:none;align-items:center;gap:10px;font-size:14px;color:var(--c-accent);
  border:1px solid rgba(34,230,200,.3);background:rgba(34,230,200,.08);
  border-radius:var(--r-btn);padding:12px 16px;margin-bottom:18px;
}
.form-success.show{display:flex;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;background:var(--c-bg-2);position:relative;
  border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:'';position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(61,123,255,0),rgba(61,123,255,.8),rgba(34,230,200,.6),rgba(61,123,255,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--c-text-2);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;margin-bottom:18px;color:var(--c-text);}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:13.5px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{font-size:13.5px;color:var(--c-text-2);display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;}
.footer-contact i{color:var(--c-brand);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);}
.footer-bottom a:hover{color:var(--c-text-2);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .bento-card:hover,.news-card:hover,.rail-card:hover,.btn-x:hover{transform:none;}
  *{transition-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px;}
  .news-card--feature .news-body{padding:26px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{min-height:320px;order:2;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento-card,.bento-card--lead,.bento-card--tall{grid-column:span 1;}
  .bento-card--lead{flex-direction:column;padding:0;}
  .bento-card--lead .bento-media{flex:0 0 auto;min-height:200px;}
  .bento-card--lead .bento-body{padding:24px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--feature{grid-template-columns:1fr;}
  .news-card--feature .news-img{min-height:220px;aspect-ratio:16/9;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .nav-search input{width:130px;}
}
@media (max-width:767px){
  .nav-search{display:none;}
  .nav-search.is-open{
    display:flex;position:absolute;left:16px;right:16px;top:66px;z-index:1050;
    background:var(--c-surface);border-color:var(--c-line-strong);box-shadow:var(--shadow-card);
  }
  .nav-search.is-open input{width:100%;}
  .search-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-top-inner{position:relative;}
  .hero-visual{min-height:240px;max-height:300px;}
  .hero-float img{height:100px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;border-bottom:1px solid var(--c-line);}
  .compare-row > div{padding:16px 20px;}
  .compare-right{border-left:3px solid var(--c-accent);}
  .compare-row .row-tag{
    display:inline-block;font-size:11px;letter-spacing:1px;padding:3px 9px;border-radius:var(--r-pill);
    border:1px solid var(--c-line);color:var(--c-text-3);margin-right:8px;
  }
  .form-row{grid-template-columns:1fr;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn-x{width:100%;}
  .form-note{text-align:left;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:36px 0 56px;}
  .brand-text{font-size:18px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .metric-card{padding:18px;}
  .bento{grid-template-columns:1fr;}
  .bento-card--lead .bento-media{display:none;}
  .bento-card--lead .bento-body{padding:24px;}
  .news-grid{grid-template-columns:1fr;gap:16px;}
  .news-card--feature .news-body{padding:20px;}
  .news-card--feature .news-body h3{font-size:18px;}
  .rail-card{flex:0 0 82%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-accordion .accordion-body{padding:16px 20px 20px 20px;}
  .form-panel{padding:22px;}
  .hero-mini{gap:20px;}
}

/* roulang page: article */
:root{
  --c-bg:#060A16;
  --c-bg-2:#0A1020;
  --c-brand:#3D7BFF;
  --c-brand-2:#7C5CFF;
  --c-accent:#22E6C8;
  --c-cta:#FF7A3D;
  --c-cta-2:#FF5E3A;
  --c-text:#E8EEFB;
  --c-text-2:#A7B4CC;
  --c-text-3:#6C7A96;
  --c-line:rgba(130,170,255,.14);
  --c-line-2:rgba(130,170,255,.32);
  --c-surface:rgba(255,255,255,.045);
  --c-solid:#0D1426;
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --sh-card:0 20px 60px rgba(0,0,0,.45);
  --sh-glass:inset 0 1px 0 rgba(255,255,255,.06);
  --nav-h:116px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:15px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(900px 480px at 18% -10%,rgba(61,123,255,.16),transparent 70%),
             radial-gradient(700px 420px at 92% 4%,rgba(124,92,255,.12),transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:repeating-linear-gradient(0deg,rgba(130,170,255,.035) 0 1px,transparent 1px 64px),
                   repeating-linear-gradient(90deg,rgba(130,170,255,.035) 0 1px,transparent 1px 64px);
}
a{color:inherit;text-decoration:none;transition:color .2s cubic-bezier(.2,.7,.2,1),border-color .2s cubic-bezier(.2,.7,.2,1)}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none;margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.32}
p{margin:0}
::selection{background:rgba(61,123,255,.4);color:#fff}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:575px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,10,22,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-top{border-bottom:1px solid rgba(130,170,255,.08)}
.nav-top-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:600;letter-spacing:.2px}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;font-size:17px;font-weight:600;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 24px rgba(61,123,255,.3);
}
.brand-text{font-size:18px;white-space:nowrap}
.brand:hover .brand-text{color:#fff}
.nav-tools{display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:var(--c-solid);
  border:1px solid var(--c-line);
  border-radius:999px;
  padding:4px 4px 4px 16px;
  transition:border-color .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s cubic-bezier(.2,.7,.2,1);
}
.nav-search:focus-within{border-color:var(--c-line-2);box-shadow:0 0 0 3px rgba(61,123,255,.16)}
.nav-search input{
  width:186px;background:transparent;border:0;outline:none;
  font-size:14px;padding:8px 0;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search button{
  width:34px;height:34px;flex:0 0 34px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;cursor:pointer;
  transition:filter .2s cubic-bezier(.2,.7,.2,1),transform .2s cubic-bezier(.2,.7,.2,1);
}
.nav-search button:hover{filter:brightness(1.1)}
.nav-search button:active{transform:translateY(1px)}
.search-toggle{
  display:none;width:38px;height:38px;border-radius:12px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text-2);cursor:pointer;
}
.search-toggle:hover{color:var(--c-text);border-color:var(--c-line-2)}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;padding:12px 22px;cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.2,1),filter .2s cubic-bezier(.2,.7,.2,1),
             box-shadow .2s cubic-bezier(.2,.7,.2,1),border-color .2s cubic-bezier(.2,.7,.2,1),
             color .2s cubic-bezier(.2,.7,.2,1),background-color .2s cubic-bezier(.2,.7,.2,1);
}
.btn-cta{
  background:linear-gradient(135deg,var(--c-cta),var(--c-cta-2));
  color:#fff;border-color:transparent;
  box-shadow:0 12px 30px rgba(255,110,60,.26);
}
.btn-cta:hover{filter:brightness(1.07);box-shadow:0 14px 36px rgba(255,110,60,.4)}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn-ghost:active{transform:translateY(1px)}
.btn-soft{background:var(--c-surface);border-color:var(--c-line);color:var(--c-text-2)}
.btn-soft:hover{color:var(--c-text);border-color:var(--c-line-2)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-x:disabled{opacity:.45;cursor:not-allowed;transform:none;filter:none}

.nav-channels{height:52px;display:flex;align-items:center}
.channels{
  display:flex;align-items:center;gap:10px;
  padding:9px 0;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
}
.channels::-webkit-scrollbar{display:none;height:0}
.channel-pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-text-2);
  font-size:14px;white-space:nowrap;
  transition:color .2s cubic-bezier(.2,.7,.2,1),border-color .2s cubic-bezier(.2,.7,.2,1),
             background-color .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s cubic-bezier(.2,.7,.2,1);
}
.channel-pill i{font-size:12px;opacity:.9}
.channel-pill:hover{color:var(--c-text);border-color:var(--c-line-2)}
.channel-pill.active{
  background:linear-gradient(135deg,var(--c-brand),#5A63FF);
  border-color:transparent;color:#fff;
  box-shadow:0 0 0 1px rgba(61,123,255,.5),0 8px 24px rgba(61,123,255,.32);
}

/* ---------- article head ---------- */
.article-head{
  position:relative;
  padding:34px 0 40px;
  border-bottom:1px solid var(--c-line);
  background-image:linear-gradient(180deg,rgba(6,10,22,.74),rgba(6,10,22,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{opacity:.6}
.crumb .current{color:var(--c-text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  border-radius:999px;font-size:12px;line-height:1;
  border:1px solid rgba(61,123,255,.4);background:rgba(61,123,255,.12);color:#9DC0FF;
}
.badge-x.neutral{border-color:var(--c-line);background:var(--c-surface);color:var(--c-text-2)}
.badge-x.warm{border-color:rgba(255,122,61,.42);background:rgba(255,122,61,.12);color:#FFB08A}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.3;
  margin:14px 0 0;
  max-width:22ch;
  letter-spacing:.2px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:16px;font-size:13px;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--c-brand);font-size:12px}
.article-cover{
  margin:32px 0 0;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-card);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  padding:46px 0 64px;
  align-items:start;
}
.article-main{max-width:780px}
.article-body{
  font-size:16px;line-height:1.85;color:#DCE5F5;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:clamp(20px,2.2vw,26px);
  margin:40px 0 16px;padding-left:14px;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-accent),var(--c-brand));
}
.article-body h3{font-size:18px;margin:20px 0 12px;color:var(--c-text)}
.article-body h4{font-size:16px;margin:18px 0 10px;color:var(--c-text)}
.article-body a{color:#8FB4FF;border-bottom:1px solid rgba(61,123,255,.4)}
.article-body a:hover{color:var(--c-accent);border-bottom-color:rgba(34,230,200,.6)}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;border-left:3px solid var(--c-accent);
  background:var(--c-surface);border-radius:var(--r-img);color:var(--c-text-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;border:1px solid var(--c-line)}
.article-body figure{margin:24px 0}
.article-body figcaption,.article-body .caption{
  font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.article-body table{
  width:100%;display:block;overflow-x:auto;border-collapse:collapse;
  margin:24px 0;font-size:14px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap;
}
.article-body th{background:rgba(255,255,255,.05);color:var(--c-text);font-weight:500}
.article-body td{color:var(--c-text-2)}
.article-body code{
  background:rgba(61,123,255,.16);color:#A9C6FF;
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:#080D1C;border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:18px;overflow-x:auto;margin:24px 0;font-size:13.5px;line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;color:#C9D8F5}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:64px 24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
}
.empty-state i{font-size:30px;color:var(--c-brand)}
.empty-state p{font-size:14px;color:var(--c-text-2)}

/* sidebar */
.sidebar{position:sticky;top:calc(var(--nav-h) + 16px);display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.side-card h3{
  font-size:15px;color:var(--c-text);margin-bottom:12px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--c-brand);font-size:13px}
.side-list li + li{border-top:1px dashed rgba(130,170,255,.12)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--c-text-2);
}
.side-list a:hover{color:var(--c-brand)}
.side-list a i{font-size:11px;color:var(--c-text-3)}
.side-note{font-size:13px;color:var(--c-text-3);line-height:1.8}
.side-note strong{color:var(--c-text-2);font-weight:500}

/* ---------- sections ---------- */
.section{padding:0 0 72px}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--c-line);
}
.sec-head .label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--c-text-3);text-transform:uppercase;
  margin-bottom:10px;
}
.sec-head .label::before{
  content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--c-accent),transparent);
}
.sec-head h2{font-size:clamp(20px,2.4vw,28px)}
.sec-head .more{font-size:13px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-head .more:hover{color:var(--c-accent)}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .2s cubic-bezier(.2,.7,.2,1),border-color .2s cubic-bezier(.2,.7,.2,1),
             box-shadow .2s cubic-bezier(.2,.7,.2,1);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--c-line-2);box-shadow:var(--sh-card)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#080D1C}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,transparent,rgba(6,10,22,.72));
}
.post-thumb .tag{position:absolute;left:12px;top:12px;z-index:2}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:17px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-body h3{color:#BBD1FF}
.post-body p{
  font-size:13.5px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:12px;border-top:1px solid rgba(130,170,255,.1);
  font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.post-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand)}
.post-card:hover .post-foot .go{color:var(--c-accent)}

/* post nav */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.post-nav a{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-glass);
  transition:transform .2s cubic-bezier(.2,.7,.2,1),border-color .2s cubic-bezier(.2,.7,.2,1);
}
.post-nav a:hover{transform:translateY(-3px);border-color:var(--c-line-2)}
.post-nav .ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(61,123,255,.14);color:#9DC0FF;font-size:14px;
}
.post-nav .txt{display:flex;flex-direction:column;gap:4px;min-width:0}
.post-nav .txt span:first-child{font-size:12px;color:var(--c-text-3)}
.post-nav .txt span:last-child{font-size:15px;color:var(--c-text)}
.post-nav .right{justify-content:flex-end;text-align:right}

/* cta panel */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:20px;border:1px solid var(--c-line);
  background-image:linear-gradient(120deg,rgba(6,10,22,.88),rgba(10,16,32,.9)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:28px;align-items:center;
  box-shadow:var(--sh-card);
}
.cta-panel h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:12px}
.cta-panel p{font-size:14.5px;color:var(--c-text-2);max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* footer */
.site-footer{
  position:relative;
  margin-top:24px;
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(6,10,22,.95));
  border-top:1px solid var(--c-line);
  padding:56px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,123,255,.7),rgba(34,230,200,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--c-text-2);line-height:1.85;max-width:38ch}
.footer-col h4{font-size:14px;color:var(--c-text);margin-bottom:14px}
.footer-col ul li + li{margin-top:10px}
.footer-col ul a{font-size:13.5px;color:var(--c-text-2)}
.footer-col ul a:hover{color:var(--c-brand)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7}
.footer-contact li i{color:var(--c-brand);font-size:13px;margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(130,170,255,.1);
  padding:18px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

/* responsive */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-main{max-width:none}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar .side-card{flex:1 1 300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-search input{width:150px}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:34px 26px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:767px){
  .nav-search{
    display:none;position:absolute;left:16px;right:16px;top:70px;
    background:var(--c-solid);box-shadow:var(--sh-card);z-index:60;
  }
  .nav-search.open{display:flex}
  .nav-search input{width:100%}
  .search-toggle{display:grid;place-items:center}
  .nav-top-inner{gap:12px}
  .brand-text{font-size:18px}
  .article-head{padding:24px 0 30px}
  .article-title{max-width:none}
  .article-layout{padding:32px 0 48px}
  .article-body{font-size:15.5px}
  .section{padding-bottom:50px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .post-nav .right{justify-content:flex-start;text-align:left}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .site-footer{padding-top:44px}
}
@media (max-width:575px){
  .nav-tools .btn-cta{padding:8px 13px;font-size:13px}
  .article-body h2{margin-top:32px}
  .cta-panel{padding:28px 20px}
  .cta-actions .btn-x{width:100%}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .post-card:hover,.post-nav a:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --c-bg:#060A16;
  --c-bg-2:#0A1020;
  --c-brand:#3D7BFF;
  --c-brand-2:#7C5CFF;
  --c-accent:#22E6C8;
  --c-cta:#FF7A3D;
  --c-cta-2:#FF5E3A;
  --c-text:#E8EEFB;
  --c-text-2:#A7B4CC;
  --c-text-3:#6C7A96;
  --c-line:rgba(130,170,255,.14);
  --c-line-2:rgba(130,170,255,.32);
  --c-surface:rgba(255,255,255,.045);
  --c-surface-2:rgba(255,255,255,.07);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:12px;
  --r-input:12px;
  --sh-card:0 20px 60px rgba(0,0,0,.45);
  --sh-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --container:1200px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--font);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -10%,rgba(61,123,255,.16),transparent 62%),
    radial-gradient(720px 460px at 4% 10%,rgba(124,92,255,.10),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.045;
  background-image:
    linear-gradient(rgba(157,184,255,.9) 1px,transparent 1px),
    linear-gradient(90deg,rgba(157,184,255,.9) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.2px}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:rgba(61,123,255,.4);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:780px}
.site-header,.site-main,.site-footer{position:relative;z-index:2}

/* ============ 双层导航 ============ */
.site-header{position:sticky;top:0;z-index:60}
.nav-top{
  height:64px;display:flex;align-items:center;
  background:rgba(8,13,28,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;font-size:17px;font-weight:600;box-shadow:0 8px 24px rgba(61,123,255,.4);
}
.brand-text{font-size:19px;font-weight:600;letter-spacing:.4px;color:var(--c-text);white-space:nowrap}
.nav-tools{display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 14px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);border-radius:var(--r-pill);
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--c-accent);background:rgba(255,255,255,.08)}
.nav-search input{
  width:190px;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search button{
  width:32px;height:32px;border:0;border-radius:50%;cursor:pointer;
  background:rgba(61,123,255,.18);color:var(--c-accent);display:grid;place-items:center;
  transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:rgba(61,123,255,.32);color:#fff}
.search-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-pill);cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
}
.search-toggle:hover{color:var(--c-text);border-color:var(--c-line-2)}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-x:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn-cta{background:linear-gradient(135deg,var(--c-cta),var(--c-cta-2));color:#fff;box-shadow:0 12px 30px rgba(255,110,60,.24)}
.btn-cta:hover{box-shadow:0 14px 38px rgba(255,110,60,.4);filter:brightness(1.06);transform:translateY(-2px);color:#fff}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line-2);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-line{background:rgba(61,123,255,.12);border-color:rgba(61,123,255,.42);color:#BBD0FF}
.btn-line:hover{background:rgba(61,123,255,.24);color:#fff;transform:translateY(-2px)}
.nav-channels{
  background:rgba(7,11,24,.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
}
.channels-wrap{position:relative;height:52px;display:flex;align-items:center}
.channels-wrap::before,.channels-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:34px;pointer-events:none;z-index:2;
}
.channels-wrap::before{left:0;background:linear-gradient(90deg,rgba(7,11,24,.95),transparent)}
.channels-wrap::after{right:0;background:linear-gradient(270deg,rgba(7,11,24,.95),transparent)}
.channels{
  display:flex;align-items:center;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;
  padding:0 26px;height:100%;scrollbar-width:none;-ms-overflow-style:none;
}
.channels::-webkit-scrollbar{display:none}
.channel-pill{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;scroll-snap-align:start;
  height:34px;padding:0 15px;border-radius:var(--r-pill);font-size:14px;
  color:var(--c-text-2);background:var(--c-surface);border:1px solid var(--c-line);
  transition:color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.channel-pill i{font-size:12px;opacity:.85}
.channel-pill:hover{color:var(--c-text);border-color:var(--c-line-2);background:var(--c-surface-2)}
.channel-pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 8px 22px rgba(61,123,255,.42),inset 0 1px 0 rgba(255,255,255,.25);
}

/* ============ 通用区块 ============ */
.site-main{display:block}
.section{padding:96px 0}
.section-alt{background:rgba(10,16,32,.72);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.channel-tag{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;margin-bottom:14px;
  border-radius:var(--r-pill);font-size:12px;letter-spacing:.6px;color:#BBD0FF;
  background:rgba(61,123,255,.12);border:1px solid rgba(61,123,255,.32);
}
.channel-tag.is-accent{color:#9FF3E4;background:rgba(34,230,200,.1);border-color:rgba(34,230,200,.3)}
.channel-tag.is-warm{color:#FFC2A6;background:rgba(255,122,61,.1);border-color:rgba(255,122,61,.3)}
.section-head h2{font-size:clamp(22px,2.6vw,32px)}
.section-head .head-note{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:640px}
.head-link{font-size:14px;color:var(--c-accent);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.head-link:hover{color:#fff}
.glass{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-card),var(--sh-inset);
}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 分类 Hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.72),rgba(6,10,22,.9) 62%,rgba(6,10,22,.97));
}
.hero-inner{position:relative;z-index:1;padding:76px 24px 72px}
.breadcrumb-x{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.breadcrumb-x a{color:var(--c-text-2)}
.breadcrumb-x a:hover{color:var(--c-accent)}
.breadcrumb-x .cur{color:var(--c-accent)}
.page-hero h1{font-size:clamp(28px,4vw,46px);max-width:820px}
.page-hero .hero-sub{margin-top:18px;max-width:700px;font-size:16px;color:var(--c-text-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-mini{display:flex;flex-wrap:wrap;gap:34px;margin-top:38px}
.hero-mini li{display:flex;flex-direction:column;gap:2px}
.hero-mini .m-num{font-size:22px;font-weight:600;color:var(--c-accent);font-variant-numeric:tabular-nums}
.hero-mini .m-label{font-size:13px;color:var(--c-text-2)}

/* ============ 指标卡 ============ */
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{padding:22px 22px 18px}
.metric-name{font-size:13px;color:var(--c-text-2)}
.metric-value{
  margin-top:8px;font-size:clamp(26px,3vw,40px);font-weight:600;line-height:1.1;
  font-variant-numeric:tabular-nums;color:var(--c-text);
}
.metric-value em{font-style:normal;font-size:14px;font-weight:500;color:var(--c-text-3);margin-left:6px}
.metric-foot{
  margin-top:12px;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:var(--c-text-3);
}
.badge-x{
  display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;border:1px solid transparent;
}
.badge-brand{color:#BBD0FF;background:rgba(61,123,255,.12);border-color:rgba(61,123,255,.32)}
.badge-neutral{color:var(--c-text-2);background:rgba(167,180,204,.1);border-color:rgba(167,180,204,.24)}
.badge-accent{color:#9FF3E4;background:rgba(34,230,200,.1);border-color:rgba(34,230,200,.3)}
.badge-warm{color:#FFC2A6;background:rgba(255,122,61,.1);border-color:rgba(255,122,61,.3)}

/* ============ 要点网格 ============ */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{padding:26px 24px;transition:transform .2s cubic-bezier(.2,.7,.2,1),border-color .2s ease}
.point-card:hover{transform:translateY(-3px);border-color:var(--c-line-2)}
.point-icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:17px;
  color:var(--c-accent);background:rgba(34,230,200,.1);border:1px solid rgba(34,230,200,.26);
  margin-bottom:16px;
}
.point-card h3{font-size:18px;margin-bottom:10px}
.point-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-card)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(6,10,22,.75))}
.split-list li{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:20px 0;border-bottom:1px dashed var(--c-line)}
.split-list li:first-child{padding-top:0}
.split-list li:last-child{border-bottom:0;padding-bottom:0}
.split-list .idx{
  font-size:15px;font-weight:600;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:1px;
}
.split-list h3{font-size:17px;margin-bottom:6px}
.split-list p{font-size:14.5px;color:var(--c-text-2)}

/* ============ 对照信息条 ============ */
.compare{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface);backdrop-filter:blur(14px)}
.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:0;border-bottom:1px solid var(--c-line)}
.compare-row:last-child{border-bottom:0}
.compare-row>div{padding:20px 24px;font-size:15px}
.compare-row .left{color:var(--c-text-2);display:flex;align-items:center;gap:10px}
.compare-row .right{
  color:var(--c-text);border-left:1px solid var(--c-line);
  box-shadow:inset 3px 0 0 0 var(--c-accent);background:rgba(34,230,200,.04);
  display:flex;align-items:center;gap:10px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.acc-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease;
}
.acc-item:hover{border-color:var(--c-line-2)}
.acc-btn{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;
  background:transparent;border:0;text-align:left;cursor:pointer;color:var(--c-text);
}
.acc-btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:-2px}
.acc-num{font-size:13px;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:1px;flex:0 0 auto}
.acc-q{flex:1;font-size:16px;font-weight:500}
.acc-icon{flex:0 0 auto;width:26px;height:26px;position:relative;transition:transform .2s ease}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.acc-icon::before{width:13px;height:1.6px}
.acc-icon::after{width:1.6px;height:13px}
.acc-btn[aria-expanded="true"] .acc-icon{transform:rotate(45deg)}
.acc-btn[aria-expanded="true"] .acc-icon::before,.acc-btn[aria-expanded="true"] .acc-icon::after{background:var(--c-accent)}
.acc-body{padding:0 24px 22px 24px;color:var(--c-text-2);font-size:15px;line-height:1.85}

/* ============ 表单 ============ */
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-points{margin-top:26px;display:grid;gap:14px}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--c-text-2)}
.cta-points i{color:var(--c-accent);margin-top:5px;font-size:13px}
.form-card{padding:30px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--c-text-2)}
.field .req{color:var(--c-cta)}
.form-control,.form-select,textarea.form-control{
  background:rgba(6,10,22,.72);border:1px solid var(--c-line);border-radius:var(--r-input);
  color:var(--c-text);padding:12px 14px;font-size:15px;box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-control::placeholder{color:var(--c-text-3)}
.form-control:focus,.form-select:focus{
  background:rgba(6,10,22,.9);border-color:var(--c-accent);color:var(--c-text);
  box-shadow:0 0 0 2px rgba(34,230,200,.28);outline:none;
}
.form-select option{background:#0A1020;color:var(--c-text)}
.form-control:disabled,.form-select:disabled{opacity:.45;cursor:not-allowed}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-text-2)}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-accent)}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:12px;margin-top:4px}
.form-tip{grid-column:1/-1;font-size:12.5px;color:var(--c-text-3)}
.err-msg{display:none;font-size:14px;color:var(--c-cta)}

/* ============ 页脚 ============ */
.site-footer{background:rgba(6,10,22,.9);border-top:1px solid var(--c-line);margin-top:0}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(61,123,255,.6),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 44px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--c-text-2);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);align-items:flex-start}
.footer-contact i{color:var(--c-brand);margin-top:5px;font-size:12px}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:34px}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .nav-search input{width:140px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero-inner{padding:48px 20px 52px}
  .hero-mini{gap:24px}
  .compare-row{grid-template-columns:1fr}
  .compare-row .right{border-left:0;box-shadow:inset 0 3px 0 0 var(--c-accent)}
  .compare-row .left::before{content:"说明";font-size:12px;color:var(--c-text-3);margin-right:6px}
  .form-grid{grid-template-columns:1fr}
  .form-actions{justify-content:stretch}
  .form-actions .btn-x{width:100%}
  .nav-search{display:none}
  .nav-search.open{
    display:flex;position:absolute;top:64px;left:0;right:0;margin:0 16px;
    background:rgba(10,16,32,.98);border-radius:var(--r-pill);padding:6px 6px 6px 14px;
  }
  .nav-search.open input{width:100%}
  .search-toggle{display:grid;place-items:center}
  .nav-top-inner{position:relative}
  .brand-text{font-size:17px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .metric-row{grid-template-columns:repeat(2,1fr);gap:16px}
  .point-grid{grid-template-columns:1fr;gap:16px}
  .metric-card{padding:18px 16px 14px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 34px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .hero-cta .btn-x{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --c-bg:#060A16;
  --c-bg-2:#0A1020;
  --c-brand:#3D7BFF;
  --c-brand-2:#7C5CFF;
  --c-accent:#22E6C8;
  --c-cta:#FF7A3D;
  --c-cta-2:#FF5E3A;
  --c-text:#E8EEFB;
  --c-text-2:#A7B4CC;
  --c-text-3:#6C7A96;
  --c-line:rgba(130,170,255,.14);
  --c-line-2:rgba(130,170,255,.32);
  --c-surface:rgba(255,255,255,.045);
  --c-surface-2:rgba(255,255,255,.07);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --hi:inset 0 1px 0 rgba(255,255,255,.06);
  --gap:24px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:124px;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(920px 540px at 78% -10%,rgba(61,123,255,.16),transparent 62%),
             radial-gradient(680px 420px at 8% 12%,rgba(124,92,255,.10),transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.9;
  background-image:linear-gradient(rgba(130,170,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(130,170,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
main{position:relative;z-index:1;}
section{position:relative;z-index:1;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1000;}
.nav-top{
  height:64px;display:flex;align-items:center;
  background:rgba(8,13,26,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);text-decoration:none;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;font-size:16px;font-weight:600;
  box-shadow:0 8px 22px rgba(61,123,255,.35),var(--hi);
}
.brand-text{font-size:18px;font-weight:600;letter-spacing:.3px;white-space:nowrap;}
.nav-tools{display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;align-items:center;gap:6px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:4px 6px 4px 16px;transition:border-color .2s var(--ease),background .2s var(--ease);}
.nav-search:focus-within{border-color:var(--c-line-2);background:var(--c-surface-2);}
.nav-search input{
  width:190px;background:transparent;border:0;outline:none;color:var(--c-text);font-size:14px;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search button{
  width:32px;height:32px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;transition:filter .2s var(--ease),transform .2s var(--ease);
}
.nav-search button:hover{filter:brightness(1.12);}
.nav-search button:active{transform:translateY(1px);}
.search-toggle{display:none;width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-text-2);cursor:pointer;align-items:center;justify-content:center;}
.search-toggle:hover{color:var(--c-text);border-color:var(--c-line-2);}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:500;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s var(--ease);white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-md{height:46px;padding:0 24px;font-size:15px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-cta{
  background:linear-gradient(135deg,var(--c-cta),var(--c-cta-2));color:#fff;
  box-shadow:0 10px 26px rgba(255,110,60,.26);
}
.btn-cta:hover{color:#fff;filter:brightness(1.06);box-shadow:0 12px 34px rgba(255,110,60,.38);}
.btn-cta:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--c-line-2);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);}
.btn-soft{background:var(--c-surface);border-color:var(--c-line);color:var(--c-text-2);}
.btn-soft:hover{color:var(--c-text);border-color:var(--c-line-2);background:var(--c-surface-2);}
.btn-x:disabled,.btn-x.disabled{opacity:.45;cursor:not-allowed;box-shadow:none;}

.nav-channels{
  height:52px;display:flex;align-items:center;
  background:rgba(10,16,32,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.channels-wrap{display:flex;align-items:center;position:relative;}
.channels{
  display:flex;align-items:center;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;
  padding:8px 0;width:100%;scrollbar-width:none;-ms-overflow-style:none;
}
.channels::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--c-surface);border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:14px;text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-pill i{font-size:13px;opacity:.9;}
.channel-pill:hover{color:var(--c-text);border-color:var(--c-line-2);background:var(--c-surface-2);}
.channel-pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 0 1px rgba(61,123,255,.45),0 8px 24px rgba(61,123,255,.32);
}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.6px;
  color:var(--c-accent);background:rgba(34,230,200,.10);border:1px solid rgba(34,230,200,.24);
  border-radius:var(--r-pill);padding:5px 12px;margin-bottom:14px;
}
.sec-title{font-size:clamp(22px,2.6vw,32px);font-weight:600;margin:0;line-height:1.35;letter-spacing:.2px;}
.sec-desc{color:var(--c-text-2);font-size:14px;margin:10px 0 0;max-width:620px;}
.sec-link{font-size:14px;color:var(--c-text-2);white-space:nowrap;}
.sec-link:hover{color:var(--c-accent);}
.eyebrow{font-size:13px;color:var(--c-text-2);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;padding:64px 0 72px;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(6,10,22,.86),rgba(6,10,22,.72)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.cat-hero-inner{display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-accent);}
.crumb i{font-size:10px;color:var(--c-text-3);}
.cat-hero h1{font-size:clamp(28px,4vw,46px);font-weight:600;line-height:1.24;margin:0 0 18px;letter-spacing:.2px;}
.cat-hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--c-brand),var(--c-accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:16px;color:var(--c-text-2);max-width:560px;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.hero-mini{display:flex;flex-wrap:wrap;gap:28px;}
.mini-item .mini-k{font-size:13px;color:var(--c-text-3);}
.mini-item .mini-v{font-size:20px;font-weight:600;color:var(--c-text);font-variant-numeric:tabular-nums;}
.mini-item .mini-v span{font-size:12px;color:var(--c-text-2);margin-left:4px;font-weight:400;}
.glass-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow),var(--hi);
}
.hero-media{padding:14px;}
.hero-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);}
.hero-media .media-cap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 6px 4px;}
.hero-media .media-cap strong{font-size:14px;font-weight:500;}
.hero-media .media-cap span{font-size:12px;color:var(--c-text-3);}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass-card{background:#0D1426;}
  .nav-top,.nav-channels{background:#0A1020;}
}

/* ============ 分栏长图 ============ */
.split-list{display:flex;flex-direction:column;gap:64px;}
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-row.reverse .split-text{order:2;}
.split-row.reverse .split-media{order:1;}
.split-num{
  font-size:13px;font-variant-numeric:tabular-nums;color:var(--c-accent);
  letter-spacing:1px;margin-bottom:12px;display:inline-flex;align-items:center;gap:10px;
}
.split-num::after{content:"";width:44px;height:1px;background:linear-gradient(90deg,var(--c-accent),transparent);}
.split-text h3{font-size:clamp(18px,2vw,22px);font-weight:600;margin:0 0 14px;}
.split-text p{color:var(--c-text-2);font-size:15px;margin:0 0 14px;}
.split-points{list-style:none;padding:0;margin:0;}
.split-points li{position:relative;padding-left:20px;color:var(--c-text-2);font-size:14px;margin-bottom:8px;}
.split-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--c-brand);}
.split-media{padding:12px;}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);}
.tag-inline{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;border-radius:var(--r-pill);
  padding:4px 12px;border:1px solid rgba(61,123,255,.28);background:rgba(61,123,255,.12);color:#9DBBFF;
}
.tag-inline.neutral{border-color:var(--c-line);background:var(--c-surface);color:var(--c-text-2);}
.tag-inline.warm{border-color:rgba(255,122,61,.28);background:rgba(255,122,61,.12);color:#FFB48C;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--c-brand),rgba(124,92,255,.35),transparent);}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:5px;width:20px;height:20px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-brand);
  box-shadow:0 0 0 4px rgba(61,123,255,.12);
}
.tl-item .tl-step{font-size:12px;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:1px;}
.tl-item h3{font-size:17px;font-weight:600;margin:6px 0 8px;}
.tl-item p{color:var(--c-text-2);font-size:14px;margin:0;}
.timeline-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}

/* ============ 短表单 ============ */
.form-panel{padding:32px;}
.form-panel h3{font-size:20px;font-weight:600;margin:0 0 8px;}
.form-panel .fp-desc{color:var(--c-text-2);font-size:14px;margin:0 0 24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:8px;}
.field .form-control,.field .form-select{
  width:100%;background:#0A1020;border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-text);padding:11px 14px;font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field .form-control::placeholder{color:var(--c-text-3);}
.field .form-control:focus,.field .form-select:focus{
  border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(34,230,200,.22);background:#0A1020;color:var(--c-text);
}
.field textarea.form-control{min-height:110px;resize:vertical;}
.field .form-select option{background:#0A1020;color:var(--c-text);}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);margin:6px 0 22px;}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--c-brand);}
.form-actions{display:flex;justify-content:flex-end;}
.err-tip{display:none;font-size:13px;color:var(--c-cta);margin-top:6px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--c-text);font-size:16px;font-weight:500;gap:14px;
  padding:20px 22px;box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-text);background:rgba(61,123,255,.06);}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px var(--c-accent) inset;}
.faq-accordion .accordion-button::after{
  content:"\2b";font-family:inherit;font-size:20px;line-height:1;color:var(--c-accent);
  background-image:none;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-num{font-size:13px;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:1px;margin-right:4px;}
.faq-accordion .accordion-body{color:var(--c-text-2);font-size:14px;padding:0 22px 22px 22px;background:var(--c-surface);}

/* ============ 横向跳转卡 ============ */
.jump-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.jump-card{
  display:flex;align-items:center;gap:20px;padding:24px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--hi);transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.jump-card:hover{transform:translateY(-3px);border-color:var(--c-line-2);}
.jump-card .jc-icon{
  width:48px;height:48px;flex:0 0 auto;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(61,123,255,.22),rgba(124,92,255,.22));color:var(--c-accent);font-size:18px;
  border:1px solid var(--c-line);
}
.jump-card h3{font-size:17px;font-weight:600;margin:0 0 6px;}
.jump-card p{font-size:13px;color:var(--c-text-2);margin:0;}
.jump-card .jc-arrow{margin-left:auto;color:var(--c-text-3);font-size:14px;}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-card);padding:44px;border:1px solid var(--c-line);
  background:linear-gradient(120deg,rgba(61,123,255,.16),rgba(124,92,255,.10) 55%,rgba(255,122,61,.10));
  box-shadow:var(--shadow),var(--hi);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:600;margin:0 0 8px;}
.cta-band p{color:var(--c-text-2);font-size:14px;margin:0;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{margin-top:40px;background:var(--c-bg-2);position:relative;z-index:1;}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(61,123,255,.5),rgba(34,230,200,.35),transparent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--c-text-2);font-size:14px;margin:0;max-width:360px;}
.footer-col h4{font-size:14px;font-weight:600;margin:0 0 18px;color:var(--c-text);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--c-text-2);font-size:14px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;color:var(--c-text-2);font-size:14px;align-items:flex-start;}
.footer-contact i{color:var(--c-brand);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--c-text-3);font-size:13px;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero-inner{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-search{display:none;}
  .search-toggle{display:inline-flex;}
  .nav-search.open{
    display:flex;position:absolute;left:24px;right:24px;top:70px;z-index:30;background:#0D1426;
    box-shadow:var(--shadow);
  }
  .nav-search.open input{width:100%;}
  .nav-top-inner{position:relative;}
  .cat-hero{padding:48px 0 56px;}
  .cat-hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:560px;}
  .split-row{grid-template-columns:1fr;gap:24px;}
  .split-row.reverse .split-text{order:1;}
  .split-row.reverse .split-media{order:2;}
  .timeline-wrap{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
}
@media (max-width:767px){
  .hero-mini{gap:20px;}
  .jump-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .cta-band{padding:28px;}
  .form-panel{padding:24px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .brand-text{font-size:18px;}
  .nav-top{height:60px;}
  .nav-channels{height:52px;}
  html{scroll-padding-top:118px;}
  .hero-media img{aspect-ratio:16/9;}
  .split-list{gap:48px;}
  .section{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn-x{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --c-bg:#060A16;
  --c-bg-2:#0A1020;
  --c-surface:rgba(255,255,255,.045);
  --c-solid:#0D1426;
  --c-line:rgba(130,170,255,.14);
  --c-line-2:rgba(130,170,255,.32);
  --c-brand:#3D7BFF;
  --c-brand-2:#7C5CFF;
  --c-accent:#22E6C8;
  --c-cta:#FF7A3D;
  --c-cta-2:#FF5E3A;
  --c-text:#E8EEFB;
  --c-text-2:#A7B4CC;
  --c-text-3:#6C7A96;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --shadow-cta:0 12px 30px rgba(255,110,60,.28);
  --t:200ms cubic-bezier(.2,.7,.2,1);
  --sec-gap:96px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--c-bg);scroll-behavior:smooth;scroll-padding-top:116px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:transparent;
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;left:-15%;right:-15%;top:-20vh;height:95vh;z-index:-2;pointer-events:none;
  background:
    radial-gradient(48% 52% at 28% 0%,rgba(61,123,255,.16),transparent 72%),
    radial-gradient(38% 42% at 84% 8%,rgba(124,92,255,.13),transparent 72%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(130,170,255,.035) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(90deg,rgba(130,170,255,.035) 0 1px,transparent 1px 46px);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-accent)}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.2px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.tab{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:24px;
}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,22,.82);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--c-line);
}
.nav-top{height:64px;border-bottom:1px solid var(--c-line)}
.nav-top-inner{
  position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);white-space:nowrap}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:18px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 6px 18px rgba(61,123,255,.35),inset 0 1px 0 rgba(255,255,255,.28);
}
.brand-text{font-size:18px;font-weight:600}
.nav-tools{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:rgba(255,255,255,.04);padding:0 4px 0 16px;transition:border-color var(--t),box-shadow var(--t)}
.nav-search:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(34,230,200,.12)}
.nav-search input{
  width:190px;height:36px;border:0;background:transparent;color:var(--c-text);outline:none;font-size:14px;
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search button{
  width:32px;height:32px;border:0;border-radius:50%;background:transparent;color:var(--c-text-2);cursor:pointer;transition:color var(--t),background var(--t);
}
.nav-search button:hover{color:var(--c-accent);background:rgba(34,230,200,.10)}
.search-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);color:var(--c-text-2);cursor:pointer;transition:var(--t);
}
.search-toggle:hover{color:var(--c-text);border-color:var(--c-line-2)}
.nav-channels{height:52px;overflow:hidden}
.channels-wrap{position:relative;height:52px;display:flex;align-items:center}
.channels{
  display:flex;align-items:center;gap:10px;width:100%;
  overflow-x:auto;scroll-snap-type:x proximity;padding-block:9px;padding-right:28px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channels::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:7px;
  height:34px;padding:0 15px;border-radius:var(--r-pill);
  font-size:14px;color:var(--c-text-2);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.channel-pill i{font-size:12px;opacity:.85}
.channel-pill:hover{color:var(--c-text);border-color:var(--c-line-2);background:rgba(255,255,255,.07)}
.channel-pill.active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 0 1px rgba(124,92,255,.42),0 8px 22px rgba(61,123,255,.35);
}
.channels-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:26px;pointer-events:none;
  background:linear-gradient(90deg,rgba(6,10,22,0),rgba(6,10,22,.92));
}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),filter var(--t);
}
.btn-x:disabled,.btn-x.disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-cta{color:#fff;background:linear-gradient(135deg,var(--c-cta),var(--c-cta-2));box-shadow:var(--shadow-cta)}
.btn-cta:hover{color:#fff;filter:brightness(1.08);box-shadow:0 14px 36px rgba(255,110,60,.38);transform:translateY(-2px)}
.btn-cta:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(255,110,60,.3)}
.btn-ghost{color:var(--c-text);background:transparent;border-color:rgba(130,170,255,.28)}
.btn-ghost:hover{color:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(34,230,200,.10)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}

/* ============ 通用板块 ============ */
.sec{padding:calc(var(--sec-gap)/2) 0}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;color:var(--c-brand);background:rgba(61,123,255,.12);
  border:1px solid rgba(61,123,255,.32);margin-bottom:14px;
}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-desc{margin:12px 0 0;color:var(--c-text-2);font-size:15px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-more{font-size:14px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:6px}
.sec-more:hover{color:var(--c-accent)}

.glass{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
}
@supports not ((-webkit-backdrop-filter:blur(4px)) or (backdrop-filter:blur(4px))){
  .glass{background:var(--c-solid)}
}

.badge-x{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;border:1px solid transparent;
}
.badge-brand{color:#9DC0FF;background:rgba(61,123,255,.12);border-color:rgba(61,123,255,.32)}
.badge-neutral{color:var(--c-text-2);background:rgba(167,180,204,.10);border-color:rgba(167,180,204,.24)}
.badge-warm{color:#FFB48C;background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.32)}

/* ============ 分页 Hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,10,22,.72) 0%,rgba(6,10,22,.86) 100%),
    radial-gradient(60% 70% at 12% 20%,rgba(61,123,255,.28),transparent 70%);
}
.hero-inner{position:relative;z-index:2;padding:64px 24px 56px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.crumbs a{color:var(--c-text-2)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .sep{color:var(--c-text-3)}
.crumbs .cur{color:var(--c-text)}
.page-hero h1{font-size:clamp(28px,4vw,46px);max-width:900px}
.hero-sub{max-width:660px;margin:18px 0 0;font-size:16px;color:var(--c-text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;
}
.hero-facts li{
  display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.hero-facts .fk{font-size:13px;color:var(--c-text-3)}
.hero-facts .fv{font-size:14px;font-weight:600;color:var(--c-accent)}

/* ============ 福利类型卡片 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.b-card{
  display:flex;flex-direction:column;overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.b-card:hover{transform:translateY(-3px);border-color:var(--c-line-2);box-shadow:0 24px 66px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.08)}
.b-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.b-card .thumb img{width:100%;height:100%;object-fit:cover}
.b-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,0) 40%,rgba(6,10,22,.75) 100%);
}
.b-card .thumb .badge-x{position:absolute;left:14px;bottom:12px;z-index:2}
.b-card .body{padding:20px 22px 24px}
.b-card h3{font-size:18px;margin-bottom:10px}
.b-card p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.75}

/* ============ 对照表 ============ */
.cmp{padding:8px 0 4px}
.cmp-head{
  display:grid;grid-template-columns:1fr 1fr;gap:0 0;
  font-size:13px;color:var(--c-text-3);padding:0 0 14px;
}
.cmp-head span:last-child{padding-left:26px;color:var(--c-accent)}
.cmp-row{
  display:grid;grid-template-columns:1fr 1fr;
  border-top:1px solid var(--c-line);
}
.cmp-row>div{padding:18px 0;font-size:15px;line-height:1.7}
.cmp-l{color:var(--c-text-3);padding-right:26px !important}
.cmp-r{
  color:var(--c-text);padding-left:26px !important;
  border-left:1px solid var(--c-line);
  box-shadow:inset 3px 0 0 0 rgba(34,230,200,.85);
}
.cmp-row:last-child{border-bottom:1px solid var(--c-line)}
.cmp-note{margin-top:20px;font-size:13px;color:var(--c-text-3)}

/* ============ 步骤时间线 ============ */
.steps-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.steps{position:relative;padding-left:34px}
.steps::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(61,123,255,.7),rgba(34,230,200,.35),rgba(130,170,255,.06));
}
.steps li{position:relative;padding-bottom:30px}
.steps li:last-child{padding-bottom:0}
.steps li::before{
  content:"";position:absolute;left:-29px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-brand);box-shadow:0 0 0 4px rgba(61,123,255,.14);
}
.steps li:nth-child(2)::before{border-color:var(--c-brand-2);box-shadow:0 0 0 4px rgba(124,92,255,.14)}
.steps li:nth-child(3)::before{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(34,230,200,.14)}
.steps li:nth-child(4)::before{border-color:var(--c-cta);box-shadow:0 0 0 4px rgba(255,122,61,.14)}
.steps h3{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.steps .step-num{
  font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.steps p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.8}
.steps-media{overflow:hidden;padding:0}
.steps-media img{width:100%;height:100%;min-height:300px;object-fit:cover}
.steps-media .cap{padding:16px 22px;font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-line)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.accordion-item{
  background:transparent;border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:18px 22px;background:var(--c-surface);color:var(--c-text);
  font-size:16px;font-weight:500;box-shadow:none !important;border-radius:0 !important;
  transition:background var(--t),color var(--t);
}
.accordion-button:not(.collapsed){background:rgba(61,123,255,.10);color:var(--c-text)}
.accordion-button:hover{background:rgba(255,255,255,.075)}
.accordion-button::after{display:none}
.accordion-button:focus{outline:2px solid var(--c-accent);outline-offset:-2px}
.faq-num{
  flex:0 0 auto;font-size:12px;color:var(--c-brand);
  font-variant-numeric:tabular-nums;letter-spacing:.6px;
}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;margin-left:auto;transition:transform var(--t)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--c-brand);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg)}
.accordion-button:not(.collapsed) .faq-icon::before,
.accordion-button:not(.collapsed) .faq-icon::after{background:var(--c-accent)}
.accordion-body{
  padding:0 22px 20px;background:var(--c-surface);
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ============ 频道跳转 ============ */
.chan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.chan-card{display:flex;flex-direction:column;overflow:hidden;color:var(--c-text);transition:transform var(--t),border-color var(--t)}
.chan-card:hover{transform:translateY(-3px);border-color:var(--c-line-2);color:var(--c-text)}
.chan-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.chan-body{padding:22px 24px 26px}
.chan-body h3{font-size:19px;margin:12px 0 10px}
.chan-body p{margin:0 0 16px;font-size:14px;color:var(--c-text-2)}
.chan-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-accent)}
.chan-back{margin:24px 0 0;font-size:14px;color:var(--c-text-2)}
.chan-back a{margin-left:6px}

/* ============ 表单 ============ */
.cta-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-points{margin-top:20px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text-2);margin-bottom:14px}
.cta-points i{color:var(--c-accent);margin-top:5px;font-size:13px}
.lead-form{
  padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--c-text-2)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(6,10,22,.72);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-text);padding:12px 14px;outline:none;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{resize:vertical;min-height:110px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-line-2)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(34,230,200,.14);background:rgba(6,10,22,.92);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 55%,calc(100% - 14px) 55%;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.check{grid-column:1 / -1;display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);cursor:pointer}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--c-accent);flex:0 0 16px}
.form-submit{grid-column:1 / -1;display:flex;justify-content:flex-end}
.form-tip{grid-column:1 / -1;font-size:13px;color:var(--c-text-3);margin:0}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec-gap);
  border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(10,16,32,0) 0%,rgba(10,16,32,.9) 100%);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,123,255,.6),rgba(34,230,200,.45),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding:56px 0 40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-2);max-width:340px;line-height:1.8}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--c-text-2)}
.footer-col ul a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);line-height:1.7}
.footer-contact i{color:var(--c-brand);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 30px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}

/* ============ 动效 ============ */
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.in{opacity:1;transform:none;transition:opacity 400ms cubic-bezier(.2,.7,.2,1),transform 400ms cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991.98px){
  :root{--sec-gap:72px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps-wrap{grid-template-columns:1fr;gap:32px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  :root{--sec-gap:56px;--gutter:16px}
  .container{padding-inline:16px}
  html{scroll-padding-top:104px}
  .nav-search{display:none}
  .search-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-tools.open .nav-search{
    display:flex;position:absolute;left:16px;right:16px;top:56px;z-index:60;
    background:rgba(10,16,32,.96);
  }
  .nav-tools.open .nav-search input{width:100%}
  .hero-inner{padding:44px 16px 40px}
  .hero-actions .btn-x{width:100%}
  .hero-facts li{flex:1 1 100%}
  .grid-4{grid-template-columns:1fr}
  .chan-grid{grid-template-columns:1fr}
  .cmp-head{display:none}
  .cmp-row{grid-template-columns:1fr}
  .cmp-l{padding-right:0 !important}
  .cmp-r{padding-left:0 !important;border-left:0;box-shadow:none;border-top:1px solid var(--c-line)}
  .cmp-l::before,.cmp-r::before{
    display:block;font-size:12px;color:var(--c-text-3);margin-bottom:6px;letter-spacing:.4px;
  }
  .cmp-l::before{content:"常见状况"}
  .cmp-r::before{content:"频道做法";color:var(--c-accent)}
  .cmp-l{padding-bottom:12px !important}
  .cmp-r{padding-top:14px !important}
  .lead-form{grid-template-columns:1fr;padding:20px}
  .form-submit .btn-x{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12px}
  .brand-text{font-size:18px}
}
@media (max-width:519.98px){
  .brand-text{font-size:16px}
  .brand-mark{width:30px;height:30px;font-size:16px;border-radius:9px}
  .channel-pill{font-size:13px;padding:0 12px}
  .b-card .body{padding:16px 18px 20px}
}