/* roulang page: index */
:root{
  --brand:#5A4BE8;
  --brand-dark:#4436C7;
  --teal:#12B39A;
  --orange:#FF8A3D;
  --grad:linear-gradient(120deg,#5A4BE8 0%,#12B39A 100%);
  --grad-soft:linear-gradient(120deg,rgba(90,75,232,.12),rgba(18,179,154,.12));
  --bg:#F7F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --text:#26243B;
  --muted:#5B5975;
  --border:#E6E5F0;
  --divider:#EFEEF6;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 2px 8px rgba(20,18,43,.05);
  --sh2:0 8px 24px rgba(20,18,43,.07);
  --sh3:0 18px 44px rgba(90,75,232,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --num:"Inter","SF Pro Display",system-ui,-apple-system,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(90,75,232,.2)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(90,75,232,.08);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
h2.section-title{font-size:clamp(26px,2.4vw,34px);line-height:1.3}
.section-sub{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(90,75,232,.28)}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 44px rgba(90,75,232,.34)}
.btn-grad:active{transform:translateY(0)}
.btn-solid{background:var(--brand);color:#fff}
.btn-solid:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:rgba(90,75,232,.05)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover::after{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:120}
.nav-top{background:#fff;border-bottom:1px solid var(--divider);transition:box-shadow .2s var(--ease),background .2s var(--ease)}
.site-header.is-stuck .nav-top{background:rgba(255,255,255,.9);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 2px 8px rgba(20,18,43,.06)}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 38px;
  box-shadow:0 6px 16px rgba(90,75,232,.28);
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);transition:background .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:rgba(90,75,232,.08);color:var(--brand)}
.nav-phone{font-size:14px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums;padding:0 4px}
.nav-phone:hover{color:var(--brand)}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-channels{background:#FBFAFF;border-bottom:1px solid var(--divider);position:relative}
.channel-list{display:flex;align-items:center;gap:32px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;height:54px;
  font-size:15px;color:var(--muted);white-space:nowrap;font-weight:500;
  transition:color .2s var(--ease);
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.channel:hover{color:var(--brand)}
.channel:hover::after{transform:scaleX(1)}
.channel.is-active{color:var(--brand);font-weight:600}
.channel.is-active::after{transform:scaleX(1)}

.drawer{
  position:fixed;inset:0;background:#fff;z-index:200;
  display:flex;flex-direction:column;padding:24px 24px 0;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--divider)}
.drawer-list{margin-top:12px;flex:1;overflow-y:auto}
.drawer-list a{display:block;font-size:18px;font-weight:600;color:var(--text);padding:16px 0;border-bottom:1px solid var(--divider);min-height:44px}
.drawer-list a:hover{color:var(--brand)}
.drawer-foot{padding:20px 0 28px}
.drawer-foot .btn{width:100%}
.drawer-close{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:22px;line-height:1}
.drawer-close:hover{background:rgba(90,75,232,.08);color:var(--brand)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--dark);padding:96px 0 88px;min-height:560px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.92}
.hero-tint{position:absolute;inset:0;background:linear-gradient(120deg,rgba(90,75,232,.84) 0%,rgba(18,179,154,.72) 100%)}
.hero-glow{
  position:absolute;width:600px;height:600px;right:-160px;bottom:-280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,179,154,.55),rgba(18,179,154,0) 68%);
}
.hero-glow2{
  position:absolute;width:480px;height:480px;left:-180px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.34),rgba(255,138,61,0) 68%);
}
.hero-inner{position:relative;z-index:3;width:100%}
.hero-copy{max-width:760px;color:#fff}
.hero-copy h1{
  color:#fff;font-size:clamp(30px,4.3vw,50px);line-height:1.2;font-weight:700;
  margin-bottom:20px;
}
.hero-sub{font-size:18px;line-height:1.7;color:rgba(255,255,255,.88);max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px}
.badge{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:12px 18px;
}
.badge-num{font-family:var(--num);font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1}
.badge-unit{font-size:12px;font-weight:600;color:rgba(255,255,255,.78);margin-left:2px}
.badge-label{font-size:12.5px;color:rgba(255,255,255,.76);line-height:1.3}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.pain-copy h2{font-size:clamp(26px,2.4vw,34px);line-height:1.3;margin-bottom:16px}
.pain-copy p{color:var(--muted);font-size:16px}
.pain-copy .text-link{margin-top:26px}
.pain-list{display:grid;gap:14px}
.pain-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  padding:20px 24px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pain-item:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.28)}
.pain-item h3{font-size:17px;line-height:1.5;margin-bottom:6px;font-weight:600}
.pain-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ 方案区 ============ */
.sol-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.sol-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.card{
  position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);z-index:4;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.24)}
.card:hover::before{transform:scaleX(1)}
.sol-main{display:flex;flex-direction:column}
.thumb{position:relative;overflow:hidden;background:linear-gradient(120deg,rgba(90,75,232,.16),rgba(18,179,154,.16))}
.thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.sol-main .thumb{aspect-ratio:16/9}
.card-body{padding:28px 30px 30px;display:flex;flex-direction:column;gap:14px;flex:1}
.card-body h3{font-size:21px;line-height:1.45}
.card-body p{font-size:15px;color:var(--muted);line-height:1.8}
.cap-list{display:grid;gap:8px;margin:2px 0 4px}
.cap-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);line-height:1.75}
.cap-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;background:var(--grad);
}
.card-body .text-link{margin-top:auto}

.sol-side .card{display:grid;grid-template-columns:150px 1fr}
.sol-side .thumb{height:100%;min-height:100%}
.sol-side .card-body{padding:22px 24px;gap:10px}
.sol-side .card-body h3{font-size:18px}
.sol-side .card-body p{font-size:14px}

/* ============ 数据区 ============ */
.stats-wrap{position:relative}
.stats{
  position:relative;overflow:hidden;background:var(--dark);border-radius:32px;
  padding:66px 56px;color:#fff;
}
.stats::before{
  content:"";position:absolute;width:560px;height:560px;right:-160px;top:-260px;border-radius:50%;
  background:radial-gradient(circle,rgba(90,75,232,.6),rgba(90,75,232,0) 68%);
}
.stats::after{
  content:"";position:absolute;width:460px;height:460px;left:-160px;bottom:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,179,154,.48),rgba(18,179,154,0) 68%);
}
.stats-inner{position:relative;z-index:2}
.stats h2{color:#fff;font-size:clamp(26px,2.4vw,32px);line-height:1.3;max-width:620px}
.stats-desc{margin-top:16px;font-size:15.5px;color:rgba(255,255,255,.72);line-height:1.85;max-width:720px}
.stats-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px}
.stat{
  flex:1 1 200px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);padding:22px 22px 20px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.stat:hover{background:rgba(255,255,255,.16);transform:translateY(-4px)}
.stat-num{font-family:var(--num);font-size:30px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:#FF8A3D;margin-left:4px}
.stat-label{font-size:13px;color:rgba(255,255,255,.72);margin-top:8px;line-height:1.5}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.quote-main{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--sh2);display:flex;flex-direction:column;gap:24px;
  position:relative;overflow:hidden;
}
.quote-main::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.quote-mark{font-family:var(--num);font-size:56px;line-height:1;color:rgba(90,75,232,.18);font-weight:700}
.quote-text{font-size:20px;line-height:1.7;font-weight:500;color:var(--text)}
.quote-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.quote-mini{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 28px;box-shadow:var(--sh1);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.quote-mini:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.quote-mini p{font-size:15px;line-height:1.8;color:var(--text)}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  background:var(--grad-soft);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--brand);
}
.quote-user-info{font-size:13px;color:var(--muted);line-height:1.5}
.quote-user-info strong{display:block;font-size:14px;color:var(--text);font-weight:600}
.quote-org{font-size:12px;color:var(--muted);background:rgba(90,75,232,.07);border-radius:8px;padding:3px 10px;display:inline-block;margin-top:4px}

/* ============ 资讯区 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);color:inherit;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.24);color:inherit}
.news-card .thumb{aspect-ratio:16/10}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.chip{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--brand);
  background:rgba(90,75,232,.09);border-radius:8px;padding:4px 10px;line-height:1.6;
}
.news-body h3{font-size:17.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--muted);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;margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-meta .arrow{color:var(--brand);transition:transform .2s var(--ease)}
.news-card:hover .news-meta .arrow{transform:translateX(4px)}

.empty-state{
  border:1px dashed var(--border);border-radius:var(--r-lg);background:#fff;
  padding:64px 32px;text-align:center;box-shadow:var(--sh1);
}
.empty-circle{
  width:64px;height:64px;border-radius:50%;margin:0 auto 20px;background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:24px;
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(90,75,232,.32);box-shadow:var(--sh2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;text-align:left;line-height:1.6;
  min-height:60px;color:var(--text);transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-lg);
  padding:56px;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start;color:#fff;
}
.cta-card::before{
  content:"";position:absolute;width:520px;height:520px;right:-180px;top:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(90,75,232,.55),rgba(90,75,232,0) 68%);
}
.cta-left{position:relative;z-index:2}
.cta-left h2{color:#fff;font-size:clamp(26px,2.4vw,32px);line-height:1.3}
.cta-left p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.75);line-height:1.8}
.cta-points{margin-top:30px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:26px;font-size:15px;color:rgba(255,255,255,.84);line-height:1.7}
.cta-points li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:5px;background:var(--grad);
}
.form-card{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-lg);padding:32px;
  box-shadow:0 18px 44px rgba(20,18,43,.18);
}
.form-card h3{font-size:19px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--r-sm);
  padding:12px 14px;font-size:15px;background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(90,75,232,.14);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--orange)}
.field-error{display:none;margin-top:6px;font-size:12px;color:var(--orange)}
.field.has-error .field-error{display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip-radio{position:relative}
.chip-radio input{position:absolute;opacity:0;width:1px;height:1px}
.chip-radio span{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:8px 16px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--border);color:var(--muted);cursor:pointer;
  transition:all .2s var(--ease);
}
.chip-radio span:hover{border-color:var(--brand);color:var(--brand)}
.chip-radio input:checked + span{background:rgba(90,75,232,.09);border-color:var(--brand);color:var(--brand);font-weight:600}
.chip-radio input:focus-visible + span{outline:2px solid var(--brand);outline-offset:2px}
.form-card .btn{width:100%;margin-top:8px}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7}
.form-note a{font-size:12.5px}
.form-alert{
  display:none;margin-top:14px;border-radius:var(--r-sm);padding:12px 14px;font-size:13.5px;line-height:1.7;
}
.form-alert.is-ok{display:block;background:rgba(18,179,154,.1);border:1px solid rgba(18,179,154,.35);color:#0d7f6d}
.form-alert.is-error{display:block;background:rgba(255,138,61,.1);border:1px solid rgba(255,138,61,.4);color:#b45a19}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:96px;border-top:1px solid rgba(255,255,255,.08)}
.footer-main{display:grid;grid-template-columns:4fr 3fr 3fr 3fr;gap:40px;padding:72px 0 48px}
.footer-brand .brand{color:#fff;margin-bottom:18px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{box-shadow:none}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:20px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);
  border-radius:12px;padding:10px 16px;
}
.footer-badge b{font-family:var(--num);font-size:18px;color:#fff;font-variant-numeric:tabular-nums}
.footer-badge span{font-size:12px;color:rgba(255,255,255,.7)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:20px;font-weight:600}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);border-bottom:2px solid transparent;padding-bottom:1px}
.footer-col a:hover{color:var(--teal);border-bottom-color:var(--teal)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:24px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom a{font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--teal)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .section{padding:80px 0}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-head{margin-bottom:36px}
  .pain-grid{grid-template-columns:1fr;gap:32px}
  .sol-grid{grid-template-columns:1fr}
  .sol-side{grid-template-rows:auto auto}
  .sol-side .card{grid-template-columns:130px 1fr}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr;padding:40px}
  .stats{padding:48px 36px;border-radius:24px}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 36px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .nav-top-inner{height:64px;gap:12px}
  .nav-phone{display:none}
  .icon-btn{display:none}
  .hamburger{display:flex}
  .nav-top .btn-sm{display:none}
  .nav-channels::after{
    content:"";position:absolute;right:0;top:0;bottom:0;width:44px;pointer-events:none;
    background:linear-gradient(90deg,rgba(251,250,255,0),#FBFAFF);
  }
  .channel-list{gap:24px;padding-right:44px}
  .channel{height:50px;font-size:14.5px}
  .hero{padding:64px 0 56px;min-height:420px}
  .hero-badges{margin-top:32px;gap:10px}
  .badge{padding:10px 14px;gap:8px}
  .badge-num{font-size:19px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 auto;padding:0 20px}
  .sol-side .card{grid-template-columns:1fr}
  .sol-side .thumb{aspect-ratio:16/9;min-height:0}
  .quote-main{padding:28px 24px}
  .quote-text{font-size:17px}
  .news-grid{grid-template-columns:1fr}
  .stats{padding:36px 24px}
  .stats-row{gap:12px}
  .stat{flex:1 1 140px;padding:18px 16px}
  .stat-num{font-size:24px}
  .cta-card{padding:32px 24px;gap:32px;border-radius:24px}
  .form-card{padding:24px}
  .footer-main{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;padding:18px 20px}
  .faq-a-inner{padding:0 20px 20px}
}
@media (max-width:479px){
  .hero-copy h1{font-size:27px}
  .hero-sub{font-size:15px}
  .badge-label{font-size:11.5px}
  .section-title{font-size:23px}
  .news-body h3{font-size:16.5px}
  .quote-user{flex-wrap:wrap}
}

/* roulang page: article */
:root{
  --brand:#5A4BE8;
  --brand-dark:#4436C7;
  --teal:#12B39A;
  --orange:#FF8A3D;
  --grad:linear-gradient(120deg,#5A4BE8,#12B39A);
  --grad-soft:linear-gradient(120deg,rgba(90,75,232,.14),rgba(18,179,154,.14));
  --bg:#F7F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --text:#26243B;
  --muted:#5B5975;
  --line:#E6E5F0;
  --line-soft:#EFEEF6;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 2px 8px rgba(20,18,43,.05);
  --sh2:0 8px 24px rgba(20,18,43,.07);
  --sh3:0 18px 44px rgba(90,75,232,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp:clamp(48px,6vw,96px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{padding-left:1.2em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh1);background:rgba(255,255,255,.88);backdrop-filter:blur(8px);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;}
.brand:hover{color:var(--text);}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:0 6px 16px rgba(90,75,232,.28);flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-grid;place-items:center;color:var(--muted);cursor:pointer;
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:#F6F5FF;}
.icon-btn svg{width:19px;height:19px;}
.phone-link{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--text);background:#FBFAFF;border:1px solid var(--line);
}
.phone-link:hover{color:var(--brand);border-color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(90,75,232,.22);}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);background:#F3F2FE;color:var(--brand-dark);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn.is-disabled,.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--text);
}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:3px auto;border-radius:2px;}
.channel-bar{background:#FBFAFF;border-top:1px solid var(--line-soft);}
.channel-scroll{position:relative;overflow-x:auto;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-list{display:flex;align-items:center;gap:32px;min-height:54px;white-space:nowrap;}
.channel{
  position:relative;display:inline-flex;align-items:center;padding:16px 0;
  font-size:15px;color:var(--muted);
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:9px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.channel:hover{color:var(--brand);}
.channel:hover::after{transform:scaleX(1);}
.channel.is-active{
  font-weight:600;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.channel.is-active::after{transform:scaleX(1);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;display:flex;flex-direction:column;
  transform:translateY(-100%);transition:transform .28s var(--ease);
  padding:18px 20px 0;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line-soft);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-nav a{
  font-size:18px;font-weight:600;color:var(--text);padding:16px 0;
  border-bottom:1px solid var(--line-soft);min-height:44px;
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{padding:16px 0 24px;position:sticky;bottom:0;background:#fff;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:24px 0 0;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9C7DC;}
.breadcrumb .current{color:var(--text);font-weight:500;}

/* ============ 文章头部 ============ */
.article-head{margin-top:22px;padding-bottom:22px;border-bottom:1px solid var(--line);}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:rgba(90,75,232,.08);color:var(--brand);
}
.article-head h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.35;margin:14px 0 0;letter-spacing:0;
}
.post-meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  margin-top:16px;font-size:13px;color:var(--muted);
}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C7DC;display:inline-block;}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px);justify-content:center;
  gap:48px;padding:36px 0 8px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 240px;}
}
.article-body{font-size:17px;line-height:1.9;color:var(--text);min-width:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;margin:2em 0 .9em;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.38em;width:4px;height:18px;border-radius:2px;background:var(--grad);
}
.article-body h3{position:relative;font-size:20px;line-height:1.5;margin:1.7em 0 .7em;padding-left:16px;}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.45em;width:3px;height:14px;border-radius:2px;
  background:var(--grad);opacity:.75;
}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-body li{margin:.4em 0;}
.article-body blockquote{
  position:relative;margin:1.6em 0;padding:16px 22px 16px 24px;
  background:#F7F7FB;border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:3px;background:var(--grad);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{border-bottom:1px solid rgba(90,75,232,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body img{border-radius:16px;margin:1.6em auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption,.article-body .caption{
  display:block;text-align:center;font-size:13px;color:var(--muted);margin-top:10px;
}
.article-body pre{
  background:#F7F7FB;border:1px solid var(--line-soft);border-radius:12px;
  padding:16px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body code{
  font-family:"JetBrains Mono",Consolas,Menlo,monospace;font-size:.92em;
  background:#F1F0FA;border-radius:6px;padding:2px 6px;color:#4436C7;
}
.article-body pre code{background:none;padding:0;color:inherit;}
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:16px;margin:1.6em 0;background:#fff;
}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px;}
.article-body th{background:#F7F7FB;text-align:left;padding:12px 16px;font-weight:600;white-space:nowrap;}
.article-body td{padding:12px 16px;border-top:1px solid var(--line-soft);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0;}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-orb{
  width:72px;height:72px;margin:0 auto 18px;border-radius:50%;
  background:var(--grad);opacity:.9;display:grid;place-items:center;color:#fff;font-size:26px;
}
.empty-state h3{font-size:20px;margin-bottom:8px;}
.empty-state p{color:var(--muted);font-size:15px;margin:0 0 22px;}

/* 目录 */
.toc{display:none;}
@media (min-width:1280px){
  .toc{display:block;position:sticky;top:96px;align-self:start;}
}
.toc[hidden]{display:none !important;}
.toc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--sh1);}
.toc-title{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);
  text-transform:uppercase;margin:0 0 12px;
}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.toc-list a{display:block;font-size:13px;line-height:1.6;color:var(--muted);}
.toc-list a:hover{color:var(--brand);}

/* 正文尾部 */
.post-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--muted);
  transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:#F3F2FE;}
.share-row{display:flex;gap:10px;}
.share-btn{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--muted);cursor:pointer;
  transition:all .2s var(--ease);
}
.share-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh1);}
.share-btn svg{width:18px;height:18px;}

/* 深色频道面板 */
.channel-hud{
  position:relative;overflow:hidden;margin-top:44px;border-radius:var(--r-lg);
  background:var(--dark);color:#fff;padding:32px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;
}
.channel-hud::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:var(--grad);opacity:.28;filter:blur(20px);pointer-events:none;
}
.channel-hud h3{color:#fff;font-size:20px;margin-bottom:8px;}
.channel-hud p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin:0;max-width:560px;}
.channel-hud-links{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1;}
.hud-link{
  display:inline-flex;align-items:center;height:44px;padding:0 18px;border-radius:999px;
  background:rgba(255,255,255,.14);color:#fff;font-size:14px;font-weight:600;
}
.hud-link:hover{background:#fff;color:var(--brand);}

/* ============ 板块与卡片 ============ */
.section{padding:var(--sp) 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.section-head .more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  position:relative;display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
  opacity:0;transition:opacity .2s var(--ease);z-index:2;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.28);}
.card:hover::before{opacity:1;}
.card-media{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:var(--grad-soft);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{
  font-size:18px;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:1.7;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:14px;font-size:13px;color:var(--muted);
}
.card-foot .arrow{color:var(--brand);font-weight:700;}

/* 上下篇 */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:var(--sp);}
.pager-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pager-item:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.28);color:inherit;}
.pager-label{font-size:13px;color:var(--muted);}
.pager-title{font-size:17px;font-weight:600;line-height:1.55;margin-top:8px;color:var(--text);}
.pager-item:hover .pager-title{color:var(--brand);}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.back-link:hover{gap:12px;}

.toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%);z-index:120;
  background:var(--dark);color:#fff;font-size:13px;padding:10px 18px;border-radius:999px;
  box-shadow:var(--sh2);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--sp);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08);}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;margin:16px 0 18px;max-width:320px;}
.footer-badge{display:inline-flex;align-items:baseline;gap:8px;background:rgba(255,255,255,.14);border-radius:var(--r-sm);padding:10px 16px;}
.footer-badge b{font-size:20px;color:#fff;font-variant-numeric:tabular-nums;line-height:1;}
.footer-badge span{font-size:12px;}
.footer-col h4{font-size:15px;color:#fff;margin:0 0 16px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;}
.footer-col p{font-size:14px;margin:0 0 10px;}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--teal);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;
}
.footer-links a{margin-left:18px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--teal);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .article-layout{gap:0;padding-top:32px;}
}
@media (max-width:1023px){
  .menu-toggle{display:block;}
  .phone-link{display:none;}
  .related-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;margin-top:64px;}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr));}
  .channel-hud{grid-template-columns:1fr;padding:26px;}
}
@media (max-width:767px){
  .topbar-inner{min-height:64px;}
  .brand-text{font-size:17px;}
  .channel-list{gap:22px;}
  .channel{font-size:14px;}
  .channel-scroll{
    -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);
    mask-image:linear-gradient(90deg,#000 88%,transparent);
  }
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .footer-main{grid-template-columns:1fr;gap:26px;}
  .footer-links a{margin-left:0;margin-right:18px;}
}
@media (max-width:520px){
  .article-head h1{font-size:24px;}
  .post-foot{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .btn{padding:0 18px;font-size:14px;}
}

/* roulang page: category1 */
:root{
  --brand:#5A4BE8;
  --brand-dark:#4436C7;
  --teal:#12B39A;
  --orange:#FF8A3D;
  --grad:linear-gradient(120deg,#5A4BE8,#12B39A);
  --grad-soft:linear-gradient(120deg,rgba(90,75,232,.12),rgba(18,179,154,.12));
  --bg:#F7F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --text:#26243B;
  --muted:#5B5975;
  --border:#E6E5F0;
  --divider:#EFEEF6;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 2px 8px rgba(20,18,43,.05);
  --sh2:0 8px 24px rgba(20,18,43,.07);
  --sh3:0 18px 44px rgba(90,75,232,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:42px;line-height:1.2;font-weight:700;}
h2{font-size:32px;line-height:1.3;font-weight:700;}
h3{font-size:21px;line-height:1.5;font-weight:600;}
::selection{background:rgba(90,75,232,.18);}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{color:var(--muted);font-size:16px;max-width:640px;margin-top:12px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:rgba(90,75,232,.08);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);min-height:44px;}
.text-link::after{content:"→";transition:transform .2s var(--ease);}
.text-link:hover::after{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(90,75,232,.28);}
.btn-grad:hover{color:#fff;box-shadow:var(--sh3);transform:translateY(-2px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(90,75,232,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--sh3);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.62);}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--border);box-shadow:var(--sh1);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark);box-shadow:var(--sh2);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签 / 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(90,75,232,.09);border-radius:999px;padding:4px 12px;
}
.chip-teal{color:#0E8F7C;background:rgba(18,179,154,.12);}
.badge{
  display:inline-flex;flex-direction:column;gap:2px;
  background:rgba(90,75,232,.08);border-radius:var(--r-sm);
  padding:12px 18px;min-width:132px;
}
.badge b{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.badge b span{font-size:12px;font-weight:600;margin-left:2px;}
.badge em{font-style:normal;font-size:12.5px;color:var(--muted);line-height:1.5;}
.badge-dark{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18);}
.badge-dark b{color:#fff;}
.badge-dark em{color:rgba(255,255,255,.78);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.brand-bar{
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--divider);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled .brand-bar{
  box-shadow:var(--sh2);
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.brand-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(90,75,232,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--sh1);}
.icon-btn svg{width:18px;height:18px;}
.phone-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--muted);
  min-height:44px;font-variant-numeric:tabular-nums;
}
.phone-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.channel-bar{background:#FBFAFF;border-bottom:1px solid var(--border);}
.channel-list{display:flex;align-items:center;gap:32px;height:54px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:54px;
  font-size:15px;color:var(--muted);white-space:nowrap;font-weight:500;
  transition:color .2s var(--ease);
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.channel:hover{color:var(--brand);}
.channel:hover::after{transform:scaleX(1);}
.channel.is-active{
  color:transparent;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  font-weight:700;
}
.channel.is-active::after{transform:scaleX(1);}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 24px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--divider);}
.drawer-close{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:#fff;
  font-size:20px;color:var(--muted);cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;padding:18px 0;overflow-y:auto;flex:1;}
.drawer-nav a{
  font-size:18px;color:var(--text);padding:14px 0;border-bottom:1px solid var(--divider);font-weight:500;
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.is-active{color:var(--brand);font-weight:700;}
.drawer-nav a::after{content:"›";color:var(--border);font-size:20px;}
.drawer-foot{padding-top:16px;border-top:1px solid var(--divider);}

/* ---------- 频道横幅 ---------- */
.channel-banner{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--dark);
  background-size:cover;background-position:center;
  min-height:260px;
  display:flex;align-items:center;
}
.banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(90,75,232,.86),rgba(18,179,154,.72));
}
.banner-overlay::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.45),rgba(255,138,61,0) 68%);
}
.banner-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:40px;padding-top:48px;padding-bottom:48px;
}
.banner-text{max-width:640px;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;margin-bottom:16px;color:rgba(255,255,255,.76);}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.5);}
.breadcrumb .current{color:rgba(255,255,255,.72);}
.channel-banner h1{font-size:42px;color:#fff;}
.banner-sub{margin-top:14px;font-size:18px;line-height:1.7;color:rgba(255,255,255,.88);max-width:560px;}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.banner-badges{display:flex;gap:12px;flex-wrap:wrap;max-width:420px;justify-content:flex-end;}

/* ---------- 不对称图文区 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);
  aspect-ratio:4/3;background:var(--grad);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media.img-fail::after{
  content:"kiayun官网 · 云服务器选型场景图";position:absolute;inset:0;display:grid;place-items:center;
  color:#fff;font-size:14px;letter-spacing:.02em;background:var(--grad);
}
.point-list{display:flex;flex-direction:column;gap:14px;}
.point{
  background:var(--card);border:1px solid var(--border);border-left:3px solid transparent;
  border-radius:var(--r-md);padding:18px 22px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-left-color:var(--brand);}
.point h3{font-size:17px;margin-bottom:6px;}
.point p{font-size:14.5px;color:var(--muted);line-height:1.7;}

/* ---------- 卡片栅格（双列） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.post-card{
  position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
  opacity:0;transition:opacity .2s var(--ease);z-index:3;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.post-card:hover::before{opacity:1;}
.post-card-link{display:block;color:inherit;height:100%;}
.post-card-link:hover{color:inherit;}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.04);}
.thumb.img-fail::after{
  content:"kiayun官网 · 云服务器选型图示";position:absolute;inset:0;display:grid;place-items:center;
  color:#fff;font-size:14px;letter-spacing:.02em;background:var(--grad);
}
.post-card-body{padding:24px;}
.post-card-body h3{
  font-size:20px;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-body p{
  font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--divider);
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.post-card-meta .arrow{font-size:16px;color:var(--brand);transition:transform .2s var(--ease);}
.post-card:hover .post-card-meta .arrow{transform:translateX(5px);}

/* ---------- 深色对比面板 ---------- */
.hud{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--dark);color:#fff;padding:48px;
}
.hud::after{
  content:"";position:absolute;left:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(90,75,232,.5),rgba(90,75,232,0) 70%);
}
.hud::before{
  content:"";position:absolute;right:-100px;bottom:-160px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,179,154,.42),rgba(18,179,154,0) 70%);
}
.hud-inner{position:relative;z-index:2;}
.hud-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px;}
.hud-head h2{color:#fff;font-size:30px;}
.hud-head p{color:rgba(255,255,255,.72);font-size:15px;max-width:520px;margin-top:10px;}
.hud-stats{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:32px;}
.tier-scroll{overflow-x:auto;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.12);}
.tier-panel{min-width:760px;}
.tier-row{
  display:grid;grid-template-columns:1.1fr 1.1fr 1.5fr 1.2fr;gap:18px;
  padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.1);
  font-size:14.5px;color:rgba(255,255,255,.82);align-items:center;
}
.tier-row:last-child{border-bottom:none;}
.tier-row.tier-head{
  background:rgba(255,255,255,.07);font-size:13px;font-weight:600;
  color:rgba(255,255,255,.62);letter-spacing:.04em;
}
.tier-row b{color:#fff;font-weight:600;}
.tier-row .hl{color:var(--orange);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.flow-item{
  position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-md);padding:26px 22px;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.flow-item .num{
  width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  box-shadow:var(--sh1);overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh2);}
.faq-item.is-open{border-color:rgba(90,75,232,.42);box-shadow:var(--sh2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);min-height:44px;
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:rgba(90,75,232,.1);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 联系条 ---------- */
.contact-strip{
  border-radius:var(--r-lg);background:var(--grad-soft);border:1px solid var(--border);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.contact-strip h2{font-size:24px;}
.contact-strip p{font-size:14.5px;color:var(--muted);margin-top:8px;}
.contact-strip .actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--sec);}
.footer-main{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding:72px 0 48px;border-top:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;margin:18px 0 20px;color:rgba(255,255,255,.72);max-width:320px;}
.footer-badge{
  display:inline-flex;align-items:baseline;gap:8px;
  background:rgba(255,255,255,.14);border-radius:var(--r-sm);padding:10px 16px;
}
.footer-badge b{color:#fff;font-size:20px;font-variant-numeric:tabular-nums;line-height:1.2;}
.footer-badge span{font-size:12.5px;color:rgba(255,255,255,.72);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col p{font-size:14px;margin-bottom:12px;line-height:1.75;}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--teal);box-shadow:inset 0 -2px 0 var(--teal);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 32px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;
}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--teal);}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .channel-banner h1{font-size:34px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
  .banner-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .banner-badges{justify-content:flex-start;}
}
@media (max-width:767px){
  :root{--sec:52px;}
  .container{padding:0 16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .channel-banner h1{font-size:28px;}
  .banner-sub{font-size:16px;}
  .brand-actions .phone-link,.brand-actions .icon-btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{
    padding-right:0;
    -webkit-mask-image:linear-gradient(90deg,#000 82%,rgba(0,0,0,0));
    mask-image:linear-gradient(90deg,#000 82%,rgba(0,0,0,0));
  }
  .channel-list{gap:24px;height:52px;}
  .channel{height:52px;font-size:14.5px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .flow{grid-template-columns:1fr;}
  .hud{padding:30px 22px;}
  .tier-row{grid-template-columns:1fr 1fr;gap:8px;}
  .tier-row.tier-head{display:none;}
  .tier-row b::before{content:attr(data-label);}
  .contact-strip{padding:24px;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .post-card-body{padding:20px;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .channel-banner h1{font-size:24px;}
  h2{font-size:22px;}
  .banner-badges{width:100%;}
  .badge-dark{flex:1 1 100%;}
  .btn{width:100%;}
  .banner-actions .btn{width:auto;}
  .banner-actions{width:100%;flex-direction:column;}
  .banner-actions .btn{width:100%;}
  .contact-strip .actions{width:100%;flex-direction:column;}
  .contact-strip .actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#5A4BE8;
  --brand-dark:#4436C7;
  --teal:#12B39A;
  --orange:#FF8A3D;
  --grad:linear-gradient(120deg,#5A4BE8 0%,#12B39A 100%);
  --grad-soft:linear-gradient(120deg,rgba(90,75,232,.12),rgba(18,179,154,.12));
  --bg:#F7F7FB;
  --card:#FFFFFF;
  --dark:#14122B;
  --text:#26243B;
  --muted:#5B5975;
  --line:#E6E5F0;
  --div:#EFEEF6;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(20,18,43,.05);
  --sh-2:0 8px 24px rgba(20,18,43,.07);
  --sh-3:0 18px 44px rgba(90,75,232,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:box-shadow .25s var(--ease),background .25s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96)}
.brand-row{height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.brand:hover{color:var(--text)}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:0 6px 16px rgba(90,75,232,.28)}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px}
.brand-row-tools{display:flex;align-items:center;gap:14px}
.icon-btn{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:var(--muted);transition:background .2s var(--ease),color .2s var(--ease)}
.icon-btn:hover{background:#F1EFFC;color:var(--brand)}
.icon-btn svg{width:20px;height:20px}
.head-phone{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--muted);padding:0 4px}
.head-phone:hover{color:var(--brand)}
.head-phone strong{color:var(--text);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(90,75,232,.24)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--brand)}
.btn-outline{border:1px solid var(--line);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sh-1)}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.text-link .arw{transition:transform .2s var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}
.hamburger{display:none}

/* ---------- channel nav ---------- */
.channel-bar{border-top:1px solid var(--div);border-bottom:1px solid var(--line);background:#FBFAFF}
.channel-list{display:flex;align-items:center;gap:32px;height:54px;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel{position:relative;display:inline-flex;align-items:center;height:54px;font-size:15px;color:var(--muted);white-space:nowrap;padding:0 2px}
.channel::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left center;transition:transform .2s var(--ease)}
.channel:hover{color:var(--brand)}
.channel:hover::after{transform:scaleX(1)}
.channel.is-active{color:var(--brand);font-weight:600}
.channel.is-active::after{transform:scaleX(1)}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:#fff;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--div)}
.drawer-nav{padding:18px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.drawer-nav a{font-size:18px;color:var(--text);padding:14px 12px;border-radius:var(--r-sm);min-height:44px}
.drawer-nav a.is-active{color:var(--brand);background:#F3F1FE;font-weight:600}
.drawer-nav a:hover{background:#F7F7FB}
.drawer-foot{padding:18px;border-top:1px solid var(--div)}
.drawer-foot .btn{width:100%}
.no-scroll{overflow:hidden}

/* ---------- banner ---------- */
.page-banner{position:relative;min-height:250px;display:flex;align-items:center;overflow:hidden;background:#2B2470}
.page-banner::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.55}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(90,75,232,.88),rgba(18,179,154,.78))}
.page-banner .glow{position:absolute;right:-80px;bottom:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.35),rgba(255,255,255,0) 68%);pointer-events:none}
.banner-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:center;width:100%;padding:48px 0}
.banner-copy h1{font-size:40px;line-height:1.25;font-weight:700;color:#fff}
.banner-copy p{margin-top:14px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.88);max-width:560px}
.crumb{display:flex;gap:8px;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.55}
.banner-badges{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.badge-glass{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);border-radius:14px;padding:14px 18px;color:#fff;min-width:142px}
.badge-glass b{display:block;font-size:22px;font-weight:700;letter-spacing:.4px}
.badge-glass b em{font-style:normal;font-size:12px;font-weight:500;margin-left:3px;opacity:.85}
.badge-glass span{display:block;font-size:12px;color:rgba(255,255,255,.82);margin-top:2px}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head h2{font-size:31px;line-height:1.32;font-weight:700}
.sec-head p{margin-top:12px;color:var(--muted);font-size:16px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(90,75,232,.08);padding:5px 12px;border-radius:999px;margin-bottom:14px}

/* ---------- split layout (4 / 8) ---------- */
.split{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:32px;align-items:start}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.side-card h2{font-size:22px;line-height:1.5;font-weight:700}
.side-card p{margin-top:12px;font-size:15px;color:var(--muted)}
.side-points{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.side-points li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.side-points .dot{flex:none;width:22px;height:22px;border-radius:50%;background:var(--grad-soft);color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px}
.side-card .btn{margin-top:22px;width:100%}
.side-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--div);font-size:13px;color:var(--muted)}

/* ---------- row cards ---------- */
.row-list{display:flex;flex-direction:column;gap:20px}
.row-card{display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh-1);position:relative;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);overflow:hidden;color:var(--text)}
.row-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--grad);transform:scaleX(0);transform-origin:left center;transition:transform .2s var(--ease)}
.row-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:transparent;color:var(--text)}
.row-card:hover::before{transform:scaleX(1)}
.thumb{position:relative;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(120deg,#5A4BE8,#12B39A)}
.thumb-ph{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:10px;font-size:12px;color:rgba(255,255,255,.9);letter-spacing:.5px}
.thumb img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.row-body{display:flex;flex-direction:column;gap:10px;padding:6px 8px 6px 0}
.chip{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);background:rgba(90,75,232,.08);padding:4px 10px;border-radius:999px}
.chip-teal{color:#0E8F7C;background:rgba(18,179,154,.12)}
.row-body h3{font-size:20px;line-height:1.5;font-weight:600}
.row-body p{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;border-top:1px solid var(--div);font-size:13px;color:var(--muted)}
.row-meta .arw{color:var(--brand);font-weight:700;transition:transform .2s var(--ease)}
.row-card:hover .arw{transform:translateX(4px)}

/* ---------- capability strip ---------- */
.strip{background:#fff;border-top:1px solid var(--div);border-bottom:1px solid var(--div)}
.strip-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center;padding:72px 0}
.strip-grid h2{font-size:30px;line-height:1.32;font-weight:700}
.strip-grid > div > p{margin-top:14px;color:var(--muted);font-size:16px}
.cap-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.cap-item{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.cap-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:8px}
.cap-item h3 i{width:8px;height:8px;border-radius:50%;background:var(--grad);display:inline-block}
.cap-item p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:transparent}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);min-height:44px}
.faq-q .mark{flex:none;width:26px;height:26px;border-radius:50%;background:rgba(90,75,232,.08);color:var(--brand);display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .2s var(--ease),background .2s var(--ease)}
.faq-item.is-open .faq-q .mark{background:var(--grad);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.08)}
.footer-main{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:40px;padding:64px 0 40px}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-text{color:#fff}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px}
.footer-badge{display:inline-flex;align-items:baseline;gap:8px;margin-top:18px;padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.14);color:#fff}
.footer-badge b{font-size:18px}
.footer-badge span{font-size:12px;color:rgba(255,255,255,.8)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.72);display:block;margin-bottom:10px}
.footer-col a:hover{color:var(--teal);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.footer-links{display:flex;gap:18px}
.footer-links a{color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--teal)}

/* ---------- responsive ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1279px){
  :root{--sec:80px}
}
@media (max-width:1023px){
  :root{--sec:64px}
  .banner-inner{grid-template-columns:1fr;padding:40px 0}
  .banner-badges{justify-content:flex-start}
  .split{grid-template-columns:1fr;gap:24px}
  .side-card{position:static}
  .strip-grid{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .row-card{grid-template-columns:minmax(0,220px) minmax(0,1fr)}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:52px 0 32px}
}
@media (max-width:767px){
  :root{--sec:52px}
  .container{padding:0 16px}
  .head-phone,.head-search{display:none}
  .hamburger{display:grid}
  .channel-bar{position:relative}
  .channel-bar::after{content:"";position:absolute;right:0;top:0;bottom:0;width:44px;background:linear-gradient(90deg,rgba(251,250,255,0),#FBFAFF);pointer-events:none}
  .channel-list{gap:22px;padding-right:36px}
  .banner-copy h1{font-size:30px}
  .banner-copy p{font-size:16px}
  .sec-head h2{font-size:24px}
  .strip-grid h2{font-size:23px}
  .cap-list{grid-template-columns:1fr}
  .row-card{grid-template-columns:1fr;gap:14px}
  .row-body{padding:0 4px 6px}
  .footer-main{grid-template-columns:1fr;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .banner-copy h1{font-size:26px}
  .badge-glass{min-width:120px;padding:12px 14px}
  .badge-glass b{font-size:19px}
  .faq-q{font-size:16px;padding:16px 16px}
  .faq-a p{padding:0 16px 18px}
}

/* roulang page: category3 */
:root{
        --primary:#5A4BE8;
        --primary-hover:#4436C7;
        --primary-08:rgba(90,75,232,.08);
        --primary-14:rgba(90,75,232,.14);
        --secondary:#12B39A;
        --secondary-08:rgba(18,179,154,.08);
        --accent:#FF8A3D;
        --bg:#F7F7FB;
        --card:#FFFFFF;
        --dark:#14122B;
        --text:#26243B;
        --muted:#5B5975;
        --border:#E6E5F0;
        --divider:#EFEEF6;
        --grad:linear-gradient(120deg,#5A4BE8,#12B39A);
        --grad-soft:linear-gradient(120deg,rgba(90,75,232,.12),rgba(18,179,154,.12));
        --r-lg:24px;
        --r-md:16px;
        --r-sm:12px;
        --sh1:0 2px 8px rgba(20,18,43,.05);
        --sh2:0 8px 24px rgba(20,18,43,.07);
        --sh3:0 18px 44px rgba(90,75,232,.16);
        --ease:cubic-bezier(.2,.7,.3,1);
        --sec:96px;
        --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{-webkit-text-size-adjust:100%}
    body{
        margin:0;
        font-family:var(--font);
        font-size:16px;
        line-height:1.8;
        color:var(--text);
        background:var(--bg);
        -webkit-font-smoothing:antialiased;
    }
    img{max-width:100%;display:block;border-radius:var(--r-md)}
    a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
    a:hover{color:var(--primary-hover)}
    h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:0}
    h1{font-size:44px;line-height:1.2}
    h2{font-size:32px}
    h3{font-size:21px;line-height:1.5}
    p{margin:0}
    ul{margin:0;padding:0;list-style:none}
    button{font-family:inherit;font-size:inherit;cursor:pointer}
    input,textarea,select{font-family:inherit;font-size:15px;color:var(--text)}
    :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

    .container{
        width:100%;
        max-width:1200px;
        margin:0 auto;
        padding:0 24px;
    }
    .section{padding:var(--sec) 0}
    .section-tight{padding:64px 0}
    .section-head{max-width:760px;margin-bottom:48px}
    .section-head .eyebrow{
        display:inline-flex;align-items:center;gap:8px;
        font-size:13px;font-weight:600;letter-spacing:.06em;
        color:var(--primary);
        background:var(--primary-08);
        border-radius:999px;
        padding:6px 14px;
        margin-bottom:16px;
    }
    .section-head h2{margin-bottom:16px}
    .section-head p{color:var(--muted);font-size:17px}

    /* ---------- 按钮 ---------- */
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:8px;
        min-height:44px;
        padding:0 24px;
        border-radius:999px;
        border:1px solid transparent;
        font-size:15px;font-weight:600;
        text-decoration:none;
        transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
        white-space:nowrap;
    }
    .btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(90,75,232,.24)}
    .btn-primary:hover{background:linear-gradient(120deg,#4436C7,#0FA089);color:#fff;transform:translateY(-2px);box-shadow:var(--sh3)}
    .btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
    .btn-outline{background:transparent;color:var(--primary);border-color:rgba(90,75,232,.4)}
    .btn-outline:hover{background:var(--primary-08);border-color:var(--primary);color:var(--primary-hover)}
    .btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6)}
    .btn-light:hover{background:#fff;color:var(--primary);border-color:#fff}
    .btn-sm{min-height:40px;padding:0 18px;font-size:14px}
    .btn-block{width:100%}
    .btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
    .link-arrow{
        display:inline-flex;align-items:center;gap:6px;
        font-size:15px;font-weight:600;color:var(--primary);
    }
    .link-arrow::after{content:"→";transition:transform .2s var(--ease)}
    .link-arrow:hover::after{transform:translateX(4px)}

    /* ---------- 顶部导航 ---------- */
    .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);transition:box-shadow .25s var(--ease),background .25s var(--ease)}
    .site-header.is-scrolled{box-shadow:var(--sh2);background:rgba(255,255,255,.86);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
    .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
    .brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
    .brand:hover{color:var(--text)}
    .brand-mark{
        width:38px;height:38px;border-radius:12px;
        display:inline-flex;align-items:center;justify-content:center;
        background:var(--grad);
        box-shadow:0 6px 16px rgba(90,75,232,.28);
        flex:0 0 auto;
    }
    .brand-mark svg{width:22px;height:22px}
    .brand-text{font-size:19px;font-weight:700;letter-spacing:.01em}
    .top-actions{display:flex;align-items:center;gap:14px}
    .icon-btn{
        width:44px;height:44px;border-radius:50%;
        border:1px solid var(--border);background:#fff;
        display:inline-flex;align-items:center;justify-content:center;
        color:var(--muted);
        transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
    }
    .icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-08)}
    .icon-btn svg{width:19px;height:19px}
    .top-phone{
        display:inline-flex;align-items:center;gap:8px;
        font-size:14px;font-weight:600;color:var(--text);
    }
    .top-phone svg{width:16px;height:16px;color:var(--primary)}
    .hamburger{
        display:none;width:44px;height:44px;border-radius:12px;
        border:1px solid var(--border);background:#fff;
        align-items:center;justify-content:center;
    }
    .hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
    .hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
    .hamburger span::before{top:-6px}
    .hamburger span::after{top:6px}

    .channel-bar{background:#FBFAFF;border-top:1px solid var(--divider);border-bottom:1px solid var(--border)}
    .channel-scroll{display:flex;align-items:center;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
    .channel-scroll::-webkit-scrollbar{display:none}
    .channel-list{display:flex;align-items:center;gap:32px;min-height:54px}
    .channel{
        position:relative;
        display:inline-flex;align-items:center;
        font-size:15px;font-weight:500;color:var(--muted);
        padding:16px 0;white-space:nowrap;
        transition:color .2s var(--ease);
    }
    .channel::after{
        content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;
        background:var(--grad);border-radius:2px;
        transform:scaleX(0);transform-origin:left;
        transition:transform .2s var(--ease);
    }
    .channel:hover{color:var(--primary)}
    .channel:hover::after{transform:scaleX(1)}
    .channel.is-active{
        font-weight:700;
        background:var(--grad);
        -webkit-background-clip:text;background-clip:text;
        -webkit-text-fill-color:transparent;color:var(--primary);
    }
    .channel.is-active::after{transform:scaleX(1)}

    /* ---------- 移动端抽屉 ---------- */
    .drawer{
        position:fixed;inset:0;z-index:80;
        background:#fff;
        display:none;flex-direction:column;
        padding:20px 24px 28px;
        overflow-y:auto;
    }
    .drawer.is-open{display:flex}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
    .drawer-close{
        width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;
        display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:20px;
    }
    .drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
    .drawer-nav a{
        font-size:18px;font-weight:600;color:var(--text);
        padding:14px 0;border-bottom:1px solid var(--divider);
        min-height:52px;display:flex;align-items:center;
    }
    .drawer-nav a.is-active{color:var(--primary)}
    .drawer-foot{margin-top:24px}
    .drawer-foot .btn{width:100%}
    .drawer-phone{display:block;text-align:center;margin-top:16px;font-size:15px;font-weight:600;color:var(--text)}

    /* ---------- 频道横幅 ---------- */
    .banner{
        position:relative;
        background-image:url(/assets/images/backpic/back-2.png);
        background-size:cover;
        background-position:center;
        overflow:hidden;
    }
    .banner::before{
        content:"";position:absolute;inset:0;
        background:linear-gradient(120deg,rgba(70,56,205,.88),rgba(18,179,154,.76));
    }
    .banner::after{
        content:"";position:absolute;right:-120px;bottom:-160px;
        width:420px;height:420px;border-radius:50%;
        background:radial-gradient(circle,rgba(255,255,255,.30),rgba(255,255,255,0) 70%);
    }
    .banner-inner{
        position:relative;z-index:1;
        display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;
        min-height:260px;padding:44px 0;
    }
    .breadcrumb{
        display:flex;align-items:center;gap:8px;
        font-size:13px;color:rgba(255,255,255,.78);
        margin-bottom:16px;flex-wrap:wrap;
    }
    .breadcrumb a{color:rgba(255,255,255,.86);font-size:13px}
    .breadcrumb a:hover{color:#fff}
    .breadcrumb .sep{color:rgba(255,255,255,.5)}
    .banner h1{color:#fff;font-size:40px;margin-bottom:14px}
    .banner h1 .thin{font-weight:500;opacity:.92;font-size:30px}
    .banner-sub{color:rgba(255,255,255,.88);font-size:18px;line-height:1.7;max-width:620px}
    .banner-badges{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
    .badge{
        background:rgba(255,255,255,.16);
        border:1px solid rgba(255,255,255,.28);
        border-radius:14px;
        padding:14px 18px;
        min-width:130px;
        color:#fff;
    }
    .badge b{
        display:block;font-size:22px;font-weight:700;line-height:1.2;
        font-variant-numeric:tabular-nums;
    }
    .badge b em{font-style:normal;font-size:12px;font-weight:500;margin-left:3px;opacity:.85}
    .badge span{display:block;font-size:12.5px;color:rgba(255,255,255,.82);margin-top:4px}

    /* ---------- 频道标签条 ---------- */
    .channel-tabs{background:#fff;border-bottom:1px solid var(--border)}
    .tabs-row{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none}
    .tabs-row::-webkit-scrollbar{display:none}
    .tabs-row a{
        position:relative;
        display:inline-flex;align-items:center;
        padding:18px 0;font-size:15px;font-weight:500;color:var(--muted);
        white-space:nowrap;min-height:56px;
        transition:color .2s var(--ease);
    }
    .tabs-row a::after{
        content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
        background:var(--grad);border-radius:2px;
        transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
    }
    .tabs-row a:hover{color:var(--primary)}
    .tabs-row a:hover::after{transform:scaleX(1)}
    .tabs-row a.is-current{color:var(--primary);font-weight:700}
    .tabs-row a.is-current::after{transform:scaleX(1)}

    /* ---------- 时间线 ---------- */
    .timeline{position:relative}
    .tl-item{
        position:relative;
        display:grid;grid-template-columns:60px 1fr;gap:28px;
        padding-bottom:44px;
    }
    .tl-item:last-child{padding-bottom:0}
    .tl-item:not(:last-child)::before{
        content:"";position:absolute;left:29px;top:64px;bottom:6px;width:2px;
        background:linear-gradient(180deg,rgba(90,75,232,.55),rgba(18,179,154,.35));
        border-radius:2px;
    }
    .tl-num{
        width:60px;height:60px;border-radius:50%;
        display:flex;align-items:center;justify-content:center;
        background:#fff;border:1px solid var(--border);
        color:var(--primary);font-weight:700;font-size:18px;
        font-variant-numeric:tabular-nums;
        box-shadow:var(--sh1);z-index:1;
        transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
    }
    .tl-item:hover .tl-num{background:var(--grad);color:#fff;transform:translateY(-4px);box-shadow:var(--sh3)}
    .tl-body{
        background:var(--card);
        border:1px solid var(--border);
        border-radius:var(--r-lg);
        padding:28px 32px;
        box-shadow:var(--sh1);
        position:relative;
        transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .tl-body::before{
        content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:var(--r-lg) var(--r-lg) 0 0;
        background:var(--grad);opacity:0;transition:opacity .2s var(--ease);
    }
    .tl-item:hover .tl-body{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.28)}
    .tl-item:hover .tl-body::before{opacity:1}
    .tl-tag{
        display:inline-flex;align-items:center;
        font-size:12.5px;font-weight:600;color:var(--secondary);
        background:var(--secondary-08);border-radius:999px;
        padding:4px 12px;margin-bottom:12px;
    }
    .tl-body h3{margin-bottom:10px}
    .tl-body p{color:var(--muted);font-size:15.5px;line-height:1.8;margin-bottom:16px}
    .tl-points{display:flex;flex-wrap:wrap;gap:10px}
    .tl-points li{
        font-size:13.5px;color:var(--text);
        background:var(--bg);border:1px solid var(--border);
        border-radius:999px;padding:6px 14px;
    }

    /* ---------- 对比面板 ---------- */
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .compare-col{
        background:#fff;border:1px solid var(--border);
        border-radius:var(--r-lg);padding:32px;
        box-shadow:var(--sh1);
    }
    .compare-col.before{background:#FBFBFE}
    .compare-col.after{
        background:linear-gradient(160deg,rgba(90,75,232,.07),rgba(18,179,154,.10));
        border-color:rgba(90,75,232,.22);
    }
    .compare-col h3{margin-bottom:18px;display:flex;align-items:center;gap:10px}
    .dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex:0 0 auto}
    .dot-gray{background:#C9C7DA}
    .dot-grad{background:var(--grad)}
    .compare-col ul li{
        display:flex;gap:12px;align-items:flex-start;
        padding:12px 0;border-bottom:1px dashed var(--divider);
        font-size:15px;color:var(--muted);
    }
    .compare-col ul li:last-child{border-bottom:none}
    .compare-col ul li b{color:var(--text);font-weight:600;display:block;font-size:15.5px;margin-bottom:2px}
    .mark{font-weight:700;line-height:1.6;flex:0 0 auto}
    .mark-before{color:#B4B1C6}
    .mark-after{color:var(--secondary)}

    /* ---------- 深色数据区 ---------- */
    .dark-panel{
        position:relative;overflow:hidden;
        background:var(--dark);
        border-radius:var(--r-lg);
        padding:64px 56px;
        color:#fff;
    }
    .dark-panel::before{
        content:"";position:absolute;left:-100px;top:-140px;width:460px;height:460px;border-radius:50%;
        background:radial-gradient(circle,rgba(90,75,232,.42),rgba(90,75,232,0) 70%);
    }
    .dark-panel::after{
        content:"";position:absolute;right:-120px;bottom:-180px;width:440px;height:440px;border-radius:50%;
        background:radial-gradient(circle,rgba(18,179,154,.34),rgba(18,179,154,0) 70%);
    }
    .dark-panel > *{position:relative;z-index:1}
    .dark-panel h2{color:#fff;margin-bottom:14px}
    .dark-panel .dark-desc{color:rgba(255,255,255,.72);max-width:680px;font-size:16.5px}
    .dark-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
    .dark-badge{
        background:rgba(255,255,255,.14);
        border:1px solid rgba(255,255,255,.16);
        border-radius:var(--r-md);
        padding:20px;
    }
    .dark-badge b{
        display:block;font-size:24px;font-weight:700;line-height:1.2;
        font-variant-numeric:tabular-nums;
    }
    .dark-badge b em{font-style:normal;font-size:12px;font-weight:500;margin-left:3px;opacity:.86}
    .dark-badge span{display:block;font-size:12.5px;color:rgba(255,255,255,.78);margin-top:6px}

    /* ---------- 场景区 ---------- */
    .scene-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
    .scene-figure{
        border-radius:var(--r-lg);overflow:hidden;
        box-shadow:var(--sh2);
        background:var(--grad-soft);
    }
    .scene-figure .thumb{position:relative;aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;background:var(--grad-soft)}
    .scene-figure img{width:100%;height:100%;object-fit:cover}
    .thumb-fallback{
        position:absolute;inset:0;display:none;align-items:center;justify-content:center;
        background:linear-gradient(120deg,rgba(90,75,232,.22),rgba(18,179,154,.22));
        color:var(--primary);font-size:14px;font-weight:600;
    }
    .thumb.is-error img{opacity:0}
    .thumb.is-error .thumb-fallback{display:flex}
    .scene-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .scene-item{
        background:#fff;border:1px solid var(--border);
        border-radius:var(--r-md);padding:24px;
        box-shadow:var(--sh1);
        transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .scene-item:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(90,75,232,.26)}
    .scene-item .ico{
        width:38px;height:38px;border-radius:12px;
        background:var(--primary-08);color:var(--primary);
        display:flex;align-items:center;justify-content:center;
        font-size:16px;font-weight:700;margin-bottom:14px;
        font-variant-numeric:tabular-nums;
    }
    .scene-item h3{font-size:18px;margin-bottom:8px}
    .scene-item p{font-size:14.5px;color:var(--muted)}

    /* ---------- CTA 表单 ---------- */
    .cta-card{
        position:relative;overflow:hidden;
        background:var(--grad);
        border-radius:var(--r-lg);
        padding:52px;
        display:grid;grid-template-columns:1fr 1fr;gap:48px;
        align-items:start;
        box-shadow:0 20px 50px rgba(90,75,232,.22);
    }
    .cta-card::after{
        content:"";position:absolute;right:-100px;top:-120px;width:380px;height:380px;border-radius:50%;
        background:radial-gradient(circle,rgba(255,255,255,.26),rgba(255,255,255,0) 70%);
    }
    .cta-card > *{position:relative;z-index:1}
    .cta-left h2{color:#fff;margin-bottom:14px}
    .cta-left .cta-sub{color:rgba(255,255,255,.88);font-size:17px;margin-bottom:28px}
    .cta-points li{
        display:flex;gap:12px;align-items:flex-start;
        color:rgba(255,255,255,.92);font-size:15px;
        padding:10px 0;
    }
    .cta-points .tick{
        flex:0 0 auto;width:22px;height:22px;border-radius:50%;
        background:rgba(255,255,255,.22);
        display:flex;align-items:center;justify-content:center;
        font-size:12px;font-weight:700;margin-top:3px;
    }
    .cta-points b{display:block;color:#fff;font-weight:600}
    .cta-points span{color:rgba(255,255,255,.8);font-size:14px}
    .form-card{
        background:#fff;border-radius:var(--r-lg);
        padding:32px;box-shadow:var(--sh2);
    }
    .form-card h3{font-size:20px;margin-bottom:6px}
    .form-card .form-hint{font-size:13.5px;color:var(--muted);margin-bottom:22px}
    .field{margin-bottom:18px}
    .field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px}
    .field input[type=text],
    .field input[type=tel],
    .field textarea{
        width:100%;
        border:1px solid var(--border);
        border-radius:var(--r-sm);
        padding:12px 14px;
        background:#FCFCFE;
        transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
    }
    .field textarea{min-height:104px;resize:vertical}
    .field input:focus,.field textarea:focus{
        outline:none;background:#fff;
        border-color:var(--primary);
        box-shadow:0 0 0 4px var(--primary-08);
    }
    .field.has-error input,.field.has-error textarea{border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,138,61,.14)}
    .err-msg{display:none;font-size:12px;color:var(--accent);margin-top:6px}
    .field.has-error .err-msg{display:block}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip-input{position:absolute;opacity:0;width:0;height:0}
    .chip-label{
        display:inline-flex;align-items:center;
        min-height:44px;padding:0 16px;
        border:1px solid var(--border);border-radius:999px;
        font-size:14px;color:var(--muted);cursor:pointer;
        transition:all .2s var(--ease);
    }
    .chip-label:hover{border-color:var(--primary);color:var(--primary)}
    .chip-input:checked + .chip-label{
        background:var(--primary-08);border-color:var(--primary);
        color:var(--primary);font-weight:600;
    }
    .chip-input:focus-visible + .chip-label{outline:2px solid var(--primary);outline-offset:2px}
    .form-foot{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7}
    .form-foot a{font-weight:600}
    .form-alert{
        display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
        font-size:14px;line-height:1.7;
    }
    .form-alert.is-success{display:block;background:var(--secondary-08);color:#0B7C6B;border:1px solid rgba(18,179,154,.3)}
    .form-alert.is-error{display:block;background:rgba(255,138,61,.1);color:#B85A15;border:1px solid rgba(255,138,61,.32)}

    /* ---------- 页脚 ---------- */
    .site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--sec);border-top:1px solid rgba(255,255,255,.08);padding:72px 0 24px}
    .footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
    .footer-brand .brand{color:#fff;margin-bottom:18px}
    .footer-brand .brand:hover{color:#fff}
    .footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
    .footer-badge{
        display:inline-flex;align-items:baseline;gap:8px;
        margin-top:20px;padding:10px 16px;border-radius:12px;
        background:rgba(255,255,255,.12);
    }
    .footer-badge b{font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
    .footer-badge span{font-size:12.5px;color:rgba(255,255,255,.78)}
    .footer-col h4{font-size:15px;color:#fff;margin-bottom:18px}
    .footer-col ul li{margin-bottom:11px}
    .footer-col a{color:rgba(255,255,255,.72);font-size:14px}
    .footer-col a:hover{color:var(--secondary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
    .footer-col p{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;line-height:1.7}
    .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:22px;flex-wrap:wrap}
    .footer-bottom p{font-size:13px;color:rgba(255,255,255,.6)}
    .footer-links{display:flex;gap:20px}
    .footer-links a{font-size:13px;color:rgba(255,255,255,.72)}
    .footer-links a:hover{color:var(--secondary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}

    /* ---------- 响应式 ---------- */
    @media (min-width:1440px){
        .container{max-width:1280px}
    }
    @media (max-width:1279px){
        h1{font-size:40px}
        .banner-inner{grid-template-columns:1fr .8fr;gap:28px}
        .dark-badges{grid-template-columns:repeat(2,1fr)}
        .scene-grid{grid-template-columns:1fr;gap:32px}
    }
    @media (max-width:1023px){
        :root{--sec:64px}
        h1{font-size:36px}
        h2{font-size:28px}
        .top-actions .top-phone{display:none}
        .compare{grid-template-columns:1fr}
        .cta-card{grid-template-columns:1fr;padding:40px;gap:32px}
        .footer-main{grid-template-columns:1fr 1fr;gap:32px}
    }
    @media (max-width:767px){
        :root{--sec:52px}
        .container{padding:0 16px}
        h1{font-size:30px}
        h2{font-size:25px}
        h3{font-size:19px}
        .top-actions .btn{display:none}
        .hamburger{display:inline-flex}
        .banner-inner{grid-template-columns:1fr;padding:36px 0;gap:24px}
        .banner h1{font-size:29px}
        .banner h1 .thin{font-size:21px;display:block}
        .banner-sub{font-size:16px}
        .banner-badges{justify-content:flex-start}
        .badge{min-width:0;flex:1 1 130px}
        .tl-item{grid-template-columns:44px 1fr;gap:16px;padding-bottom:32px}
        .tl-item:not(:last-child)::before{left:21px;top:50px}
        .tl-num{width:44px;height:44px;font-size:15px}
        .tl-body{padding:22px}
        .dark-panel{padding:40px 24px}
        .scene-list{grid-template-columns:1fr}
        .cta-card{padding:28px 20px}
        .form-card{padding:24px 20px}
        .footer-main{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
        .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
    }
    @media (max-width:520px){
        .banner h1{font-size:26px}
        .banner-sub{font-size:15.5px}
        .badge b{font-size:19px}
        .tabs-row{gap:20px}
        .section-head p{font-size:16px}
        .tl-body h3{font-size:17.5px}
        .dark-badge b{font-size:21px}
    }
    @media (max-width:480px){
        body{font-size:15.5px}
        .brand-text{font-size:17px}
        .badge{flex:1 1 100%}
        .btn{padding:0 20px}
    }
    @media (prefers-reduced-motion:reduce){
        *{transition:none !important;animation:none !important}
    }