/* roulang page: index */
:root{
  --brand:#6C3BF4;
  --brand-deep:#4B22C9;
  --brand-100:#EFE9FF;
  --cyan:#12C8A0;
  --cyan-100:#E2FBF4;
  --orange:#FF8A3D;
  --orange-100:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-2:#16121F;
  --t1:#1A1526;
  --t2:#5B5470;
  --t3:#8C86A0;
  --ti:#F3F0FA;
  --ti2:#B9B3CC;
  --line:#E6E1F2;
  --line-soft:#EFEBF7;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh1:0 1px 2px rgba(20,10,60,.05);
  --sh2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh3:0 0 0 1px rgba(108,59,244,.35),0 12px 40px -12px rgba(108,59,244,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input{font:inherit}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;line-height:1.4;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-100);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.sec-kicker.is-cyan{color:#0B7C63;background:var(--cyan-100)}
h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.01em}
h2{font-size:30px;line-height:1.3;font-weight:700}
h3{font-size:22px;line-height:1.35;font-weight:700}
h4{font-size:18px;line-height:1.4;font-weight:600}
p{color:var(--t2)}
.lead{font-size:17px;line-height:1.9;color:var(--t2)}
.muted{color:var(--t3);font-size:14px;line-height:1.7}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#6C3BF4 0%,#8A5BFF 100%);
  color:#fff;box-shadow:0 8px 24px -10px rgba(108,59,244,.65);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 32px -12px rgba(108,59,244,.75)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--t1);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep)}
.btn-light{background:rgba(255,255,255,.10);color:#fff;border:1px solid var(--line-dark)}
.btn-light:hover{background:rgba(255,255,255,.18)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;pointer-events:none;cursor:not-allowed}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-deep);
}
.text-link .arw{transition:transform .3s var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1.4;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-deep);
}
.badge-cyan{background:var(--cyan-100);color:#0B7C63}
.badge-orange{background:var(--orange-100);color:#C25A15}
.badge-dark{background:rgba(255,255,255,.10);color:var(--ti)}

/* Dock 导航 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;padding:20px 16px 0;pointer-events:none}
.dock{
  pointer-events:auto;max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:16px;padding:10px 14px 10px 18px;
  border-radius:22px;background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:0 8px 30px -12px rgba(60,30,140,.18);
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock{height:56px;box-shadow:0 14px 38px -14px rgba(60,30,140,.30)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand) 0%,#8A5BFF 100%);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:0;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(108,59,244,.8);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:800;letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:11.5px;color:var(--t3);letter-spacing:.06em}
.dock-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-link{position:relative;font-size:14.5px;font-weight:500;color:var(--t2);padding:6px 0;transition:color .25s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav-link:hover{color:var(--brand-deep)}
.nav-link.is-active{color:var(--brand-deep);font-weight:700}
.nav-link.is-active::after,.nav-link:hover::after{transform:scaleX(1)}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--t2);
  transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px)}
.hamburger{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--t1)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mobile-panel{
  pointer-events:auto;max-width:1120px;margin:10px auto 0;padding:10px;
  background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:0 0 20px 20px;box-shadow:0 18px 40px -18px rgba(60,30,140,.30);
  display:none;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:14px;font-size:15.5px;font-weight:500;color:var(--t2)}
.mobile-panel a:hover,.mobile-panel a.is-active{background:var(--brand-100);color:var(--brand-deep);font-weight:700}

/* Hero */
.hero{position:relative;overflow:hidden;padding:140px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(720px 420px at 82% 8%,rgba(108,59,244,.16),transparent 62%),
    radial-gradient(560px 380px at 6% 92%,rgba(18,200,160,.14),transparent 60%),
    var(--bg);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(rgba(108,59,244,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(108,59,244,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.86),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.86),transparent 78%);
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;min-height:560px}
.hero-copy{grid-column:span 6}
.hero-copy h1{margin-bottom:18px}
.hero-copy .lead{max-width:46ch;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{grid-column:span 6;position:relative}
.hero-media img{
  width:100%;border-radius:var(--r-panel);box-shadow:0 30px 70px -30px rgba(60,30,140,.55);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-panel);
  background:linear-gradient(140deg,rgba(12,10,18,.34),rgba(12,10,18,.05) 62%);
}
.hero-media .hero-tag{position:absolute;left:20px;bottom:20px;z-index:2}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:56px;padding:26px 28px;border-radius:var(--r-panel);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh1);
}
.stat-num{font-family:Inter,system-ui,sans-serif;font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--t1)}
.stat-num b{color:var(--brand)}
.stat-label{font-size:13.5px;color:var(--t2);margin-top:2px}
.hero-stats .stat + .stat{border-left:1px solid var(--line-soft);padding-left:20px}

/* 品牌主张 非对称 */
.claim-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.claim-side{grid-column:span 5;position:sticky;top:120px;align-self:start}
.claim-side h2{margin:14px 0 14px}
.claim-list{grid-column:span 7;border-top:1px solid var(--line)}
.claim-item{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:26px 0;border-bottom:1px solid var(--line)}
.claim-idx{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--brand);color:var(--brand-deep);
  font-family:Inter,system-ui,sans-serif;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.claim-item:nth-child(2){margin-left:22px}
.claim-item:nth-child(3){margin-left:44px}
.claim-item h3{font-size:20px;margin-bottom:8px}
.claim-item p{font-size:15.5px;line-height:1.8}

/* 故事图文 */
.story-row{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;margin-bottom:72px}
.story-row:last-child{margin-bottom:0}
.story-media{grid-column:span 7}
.story-media img{width:100%;border-radius:var(--r-panel);box-shadow:var(--sh2)}
.story-copy{grid-column:span 5}
.story-copy h2{font-size:26px;margin-bottom:16px}
.story-copy p{margin-bottom:16px;font-size:16px}
.story-row.flip .story-media{order:2;grid-column:span 7}
.story-row.flip .story-copy{order:1}
.story-band{
  background:var(--dark);color:var(--ti);border-radius:32px;padding:56px 48px;
  background-image:radial-gradient(620px 300px at 88% 0%,rgba(108,59,244,.35),transparent 62%);
}
.story-band h2{color:#fff;font-size:26px;margin-bottom:14px}
.story-band p{color:var(--ti2);max-width:70ch}
.story-band .band-points{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.band-point{background:rgba(255,255,255,.06);border:1px solid var(--line-dark);border-radius:16px;padding:20px}
.band-point h4{color:#fff;margin-bottom:6px}
.band-point p{font-size:14px;line-height:1.75;color:var(--ti2)}

/* Bento 精选 */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(180px,auto);gap:22px}
.b-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease);
  display:flex;flex-direction:column;
}
.b-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#DAD2F4}
.b-card.big{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden}
.b-card.big .b-thumb{position:relative;overflow:hidden}
.b-card.big .b-thumb img{width:100%;height:auto;border-radius:0;transition:transform .5s var(--ease)}
.b-card.big:hover .b-thumb img{transform:scale(1.03)}
.b-card.big .b-body{padding:22px 24px 26px}
.b-card.big h3{font-size:20px;margin:12px 0 10px}
.b-card.big p{font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.b-card.small{justify-content:space-between;gap:18px}
.b-card.small h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.b-card.small .b-meta{font-size:13px;color:var(--t3)}
.b-card.accent{background:linear-gradient(160deg,#F4EFFF,#FFFFFF 70%);border-color:#DDD3FA}

/* 最新信息 CMS 列表 */
.news-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--sh1);overflow:hidden}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:28px 28px 20px;border-bottom:1px solid var(--line-soft)}
.news-head h2{font-size:24px}
.news-list{padding:6px 0}
.news-row{
  display:grid;grid-template-columns:110px 1fr auto 28px;gap:20px;align-items:center;
  padding:20px 28px;border-bottom:1px solid var(--line-soft);
  position:relative;transition:background .3s var(--ease);
}
.news-row:last-child{border-bottom:0}
.news-row::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;transition:transform .3s var(--ease);
}
.news-row:hover{background:var(--panel)}
.news-row:hover::before{transform:scaleY(1)}
.news-date{font-family:Inter,system-ui,sans-serif;font-size:13.5px;font-weight:700;color:var(--brand-deep);line-height:1.4}
.news-date small{display:block;font-size:11.5px;font-weight:500;color:var(--t3);letter-spacing:.04em}
.news-main{min-width:0}
.news-main h3{font-size:17px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-main p{font-size:14px;line-height:1.7;color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:4px}
.news-go{color:var(--t3);transition:transform .3s var(--ease),color .3s var(--ease)}
.news-row:hover .news-go{color:var(--brand);transform:translateX(4px)}
.news-more{padding:20px 28px 26px;display:flex;justify-content:center;border-top:1px solid var(--line-soft)}
.empty-state{
  margin:24px 28px 30px;padding:36px 24px;text-align:center;
  border:1.5px dashed #D6CDF2;border-radius:var(--r-card);background:var(--panel);
}
.empty-state h3{font-size:17px;margin-bottom:8px}
.empty-state p{font-size:14.5px;margin-bottom:18px}

/* 信任背书 */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:34px}
.trust-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh1);transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.trust-card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.trust-card .num{font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--brand);line-height:1.1}
.trust-card .num.c2{color:var(--cyan)}
.trust-card h4{margin:10px 0 6px;font-size:16.5px}
.trust-card p{font-size:14px;line-height:1.75}
.badge-wall{display:flex;flex-wrap:wrap;gap:12px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card)}
.badge-wall span{
  font-size:13px;font-weight:600;color:var(--t2);background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:9px 18px;
  filter:grayscale(.35);transition:filter .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.badge-wall span:hover{filter:none;color:var(--brand-deep);border-color:#D6CDF2}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .3s var(--ease),background .3s var(--ease)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--t1);
}
.faq-ico{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;background:var(--brand-100);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--t2)}
.faq-item.is-open{background:var(--panel);border-color:#DAD2F4;box-shadow:inset 3px 0 0 var(--brand)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-item.is-open .faq-ico{transform:rotate(180deg);background:var(--brand);color:#fff}

/* 订阅 CTA */
.cta-band{
  background:var(--dark);border-radius:32px;padding:64px 48px;text-align:center;
  background-image:radial-gradient(680px 320px at 50% -10%,rgba(108,59,244,.42),transparent 66%);
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:var(--ti2);max-width:56ch;margin:0 auto 30px}
.cta-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:560px;margin:0 auto}
.cta-form input{
  flex:1 1 300px;height:48px;border-radius:var(--r-input);border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);color:#fff;padding:0 18px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.42)}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,59,244,.30)}
.cta-form .btn-primary{box-shadow:var(--sh3)}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.42)}

/* 页脚 */
.site-footer{background:var(--dark);color:var(--ti2);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:var(--ti2)}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ti2);margin:16px 0 14px;max-width:34ch}
.footer-domain{font-size:13px;color:rgba(255,255,255,.36);letter-spacing:.04em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--ti2);transition:color .25s var(--ease),text-decoration-color .25s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* 响应式 */
@media (max-width:1279px){
  .container{max-width:1100px}
  .dock-nav{gap:18px}
  .nav-link{font-size:14px}
}
@media (max-width:1023px){
  .dock-nav,.dock-actions .btn,.icon-btn{display:none}
  .hamburger{display:flex}
  .dock{justify-content:space-between}
  .site-header{padding:14px 14px 0}
  .hero{padding:120px 0 52px}
  .hero-grid{grid-template-columns:repeat(8,1fr);min-height:0}
  .hero-copy,.hero-media{grid-column:span 8}
  .hero-media{margin-top:32px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .hero-stats .stat:nth-child(3){border-left:0;padding-left:0}
  .claim-side{grid-column:span 8;position:static}
  .claim-list{grid-column:span 8}
  .claim-item:nth-child(2),.claim-item:nth-child(3){margin-left:0}
  .story-media,.story-copy,.story-row.flip .story-media,.story-row.flip .story-copy{grid-column:span 8;order:0}
  .story-media{margin-bottom:24px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .b-card.big{grid-column:span 2;grid-row:span 1}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  h1{font-size:28px}
  h2{font-size:24px}
  h3{font-size:19px}
  .section{padding:44px 0}
  .section-tight{padding:36px 0}
  .hero{padding:104px 0 40px}
  .hero-stats{grid-template-columns:1fr;padding:22px}
  .hero-stats .stat + .stat{border-left:0;padding-left:0;border-top:1px solid var(--line-soft);padding-top:16px}
  .hero-cta .btn{width:100%}
  .claim-item{grid-template-columns:48px 1fr;gap:14px}
  .bento{grid-template-columns:1fr}
  .b-card.big{grid-column:span 1}
  .news-head{flex-direction:column;align-items:flex-start;padding:22px 18px 16px}
  .news-row{grid-template-columns:1fr 24px;gap:10px;padding:16px 18px}
  .news-date{grid-column:1/-1;order:3;font-size:12px}
  .news-date small{display:inline;margin-left:6px}
  .news-main h3{white-space:normal}
  .news-main p{display:none}
  .news-badge{grid-column:1;order:2}
  .news-more{padding:16px 18px 20px}
  .empty-state{margin:18px}
  .trust-grid{grid-template-columns:1fr}
  .story-band{padding:34px 22px;border-radius:24px}
  .story-band .band-points{grid-template-columns:1fr}
  .cta-band{padding:40px 22px;border-radius:24px}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{margin-top:56px;padding-top:44px}
}
@media (max-width:420px){
  h1{font-size:25px}
  .logo-text strong{font-size:13.5px}
  .faq-q{font-size:15.5px;padding:16px 16px}
  .faq-a p{padding:0 16px 18px}
}

/* roulang page: article */
:root{
  --brand:#6C3BF4;
  --brand-deep:#4B22C9;
  --brand-lift:#8A5BFF;
  --brand-tint:#EFE9FF;
  --accent:#12C8A0;
  --accent-tint:#E2FBF4;
  --spark:#FF8A3D;
  --spark-tint:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-panel:#16121F;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8C86A0;
  --inv:#F3F0FA;
  --inv-2:#B9B3CC;
  --line:#E6E1F2;
  --line-soft:#EFEBF7;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,10,60,.05);
  --sh-2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh-3:0 0 0 1px rgba(108,59,244,.35),0 12px 40px -12px rgba(108,59,244,.45);
  --font:"Inter","PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--brand-tint);color:var(--brand-deep);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部浮动 Dock 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  padding:20px 24px 0;
  transition:padding .3s var(--ease);
}
.dock{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
  padding:10px 14px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:0 8px 30px -12px rgba(60,30,140,.18);
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-compact{padding-top:12px;}
.site-header.is-compact .dock{height:56px;box-shadow:0 14px 34px -14px rgba(60,30,140,.3);}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-lift));
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 6px 18px -8px rgba(108,59,244,.8);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text strong{font-size:15px;font-weight:700;letter-spacing:.2px;}
.logo-text em{font-size:12px;font-style:normal;color:var(--text-3);letter-spacing:1.6px;}
.dock-nav{display:flex;align-items:center;gap:26px;margin:0 auto;}
.nav-link{
  position:relative;
  font-size:15.5px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.dock-tools{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  color:var(--text-2);
  border:1px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.icon-btn:hover{background:var(--brand-tint);color:var(--brand);border-color:#DCD2FA;}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),filter .25s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-lift));
  color:#fff;
  box-shadow:0 8px 22px -10px rgba(108,59,244,.75);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 30px -12px rgba(108,59,244,.85);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:#fff;color:var(--text);border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.menu-btn{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);place-items:center;color:var(--text);}
.menu-btn svg{width:20px;height:20px;}
.mobile-menu{
  max-width:1120px;
  margin:10px auto 0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:0 0 20px 20px;
  box-shadow:var(--sh-2);
  overflow:hidden;
  display:none;
}
.mobile-menu.is-open{display:block;}
.mobile-menu a{
  display:flex;align-items:center;
  min-height:48px;padding:0 20px;
  font-size:15.5px;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.mobile-menu a:last-child{border-bottom:0;}
.mobile-menu a.is-active{color:var(--brand);background:var(--brand-tint);font-weight:600;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:150px 0 40px;
  background-image:linear-gradient(180deg,rgba(246,244,251,.94),rgba(246,244,251,.99)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);transition:color .25s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#C9C2DD;}
.article-title{
  font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.4px;
  max-width:900px;
}
.article-title.is-long{font-size:33px;line-height:1.3;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;font-size:14px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .divider{width:1px;height:14px;background:var(--line);}
.badge{
  display:inline-flex;align-items:center;
  min-height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:var(--brand-tint);color:var(--brand-deep);
}
.badge-accent{background:var(--accent-tint);color:#0B8C70;}
.badge-spark{background:var(--spark-tint);color:#C25A12;}

/* ============ 正文布局 ============ */
.article-main{padding:56px 0 88px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 316px;
  gap:44px;
  align-items:start;
}
.article-shell{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:40px 44px 48px;
  max-width:820px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:44em;}
.article-body > :first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  font-size:30px;line-height:1.3;font-weight:700;
  margin:44px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--brand-lift));
}
.article-body h3{font-size:22px;line-height:1.35;font-weight:700;margin:28px 0 12px;}
.article-body h4{font-size:18px;line-height:1.4;font-weight:600;margin:22px 0 10px;color:var(--text-2);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body li{margin:0 0 .55em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--brand-tint);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px 0 10px;box-shadow:var(--sh-1);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:8px;text-align:center;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(108,59,244,.32);transition:border-color .25s var(--ease),color .25s var(--ease);}
.article-body a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}
.article-body strong{font-weight:700;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--panel);font-weight:600;color:var(--text-2);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-empty{
  border:1px dashed #CFC6E8;
  background:var(--panel);
  border-radius:var(--r-card);
  padding:40px 28px;
  text-align:center;
}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.article-empty p{color:var(--text-2);margin-bottom:20px;}

/* 标签与分享 */
.article-foot{
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  min-height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--panel);border:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint);}
.share-row{display:flex;gap:10px;align-items:center;}
.share-btn{
  min-height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  font-size:13.5px;color:var(--text-2);
  display:inline-flex;align-items:center;gap:6px;
  transition:border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 22px 24px;
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h2::before{content:"";width:4px;height:14px;border-radius:3px;background:var(--brand);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:block;font-size:14px;color:var(--text-2);
  padding:8px 10px;border-radius:10px;
  border-left:2px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.toc-link.is-sub{padding-left:22px;font-size:13.5px;color:var(--text-3);}
.toc-link:hover{background:var(--panel);color:var(--brand);border-left-color:var(--brand);}
.hot-list{display:flex;flex-direction:column;}
.hot-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px solid var(--line-soft);
  transition:background .25s var(--ease),padding-left .25s var(--ease);
}
.hot-list a:last-child{border-bottom:0;padding-bottom:0;}
.hot-list a:hover{background:var(--panel);padding-left:8px;border-radius:10px;}
.hot-index{
  flex-shrink:0;width:22px;height:22px;border-radius:8px;
  display:grid;place-items:center;
  background:var(--brand-tint);color:var(--brand-deep);
  font-size:12px;font-weight:700;margin-top:3px;
}
.hot-text{font-size:14.5px;line-height:1.6;color:var(--text);}
.hot-text em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-top:4px;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 88px;}
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.4px;color:var(--brand);
  text-transform:uppercase;font-weight:700;margin-bottom:10px;
}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
.section-head p{margin-top:12px;color:var(--text-2);max-width:640px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD2FA;}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--brand-deep);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
}
.arrow-link svg{width:16px;height:16px;transition:transform .3s var(--ease);}
.arrow-link:hover svg{transform:translateX(4px);}
.back-bar{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:36px;padding:20px 24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
}
.back-bar span{font-size:14.5px;color:var(--text-2);}

/* ============ 订阅 CTA ============ */
.cta-section{padding:0 0 88px;}
.cta-panel{
  position:relative;
  background:var(--dark);
  border-radius:var(--r-panel);
  padding:64px 48px;
  text-align:center;
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:-40% 40% 40% -30%;
  background:radial-gradient(closest-side,rgba(108,59,244,.45),transparent 70%);
  pointer-events:none;
}
.cta-panel > *{position:relative;}
.cta-panel h2{color:var(--inv);font-size:30px;line-height:1.3;font-weight:700;}
.cta-panel p{color:var(--inv-2);margin:14px auto 28px;max-width:560px;}
.subscribe-form{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;
  max-width:560px;margin:0 auto;
}
.subscribe-form input{
  flex:1 1 260px;min-height:48px;padding:0 18px;
  border-radius:var(--r-input);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  color:var(--inv);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.subscribe-form input::placeholder{color:#8C86A0;}
.subscribe-form input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(108,59,244,.35);}
.form-note{margin-top:14px;font-size:13px;color:var(--inv-2);min-height:20px;}
.form-note.is-ok{color:#7CEBD1;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);padding:64px 0 0;color:var(--inv-2);}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text strong{color:var(--inv);}
.footer-brand .logo-text em{color:var(--inv-2);}
.footer-brand p{font-size:14.5px;color:var(--inv-2);max-width:320px;}
.footer-domain{display:inline-block;margin-top:14px;font-size:12.5px;color:#7E7794;letter-spacing:.4px;}
.footer-col h4{font-size:15px;color:var(--inv);font-weight:700;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:var(--inv-2);transition:color .25s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8C86A0;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1100px;}
}
@media (max-width:1023px){
  .dock-nav{display:none;}
  .menu-btn{display:grid;}
  .dock-tools .btn-sm{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;}
  .article-shell{max-width:none;padding:32px 28px 36px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .article-title{font-size:34px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .site-header{padding:14px 16px 0;}
  .logo-text strong{font-size:14px;}
  .logo-text em{font-size:11px;letter-spacing:1.2px;}
  .article-hero{padding:124px 0 30px;}
  .article-title{font-size:28px;}
  .article-title.is-long{font-size:25px;}
  .article-main{padding:36px 0 64px;}
  .article-shell{padding:24px 18px 28px;border-radius:18px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:24px;margin:34px 0 14px;}
  .article-body h3{font-size:19.5px;}
  .related,.cta-section{padding-bottom:64px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .cta-panel{padding:40px 20px;border-radius:18px;}
  .cta-panel h2{font-size:23px;}
  .subscribe-form input,.subscribe-form .btn{width:100%;flex:1 1 100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:420px){
  .article-title{font-size:25px;}
  .article-title.is-long{font-size:23px;}
  .article-meta{font-size:13px;gap:10px;}
  .badge{font-size:12px;}
}

/* roulang page: category1 */
:root{
  --primary:#6C3BF4;
  --primary-deep:#4B22C9;
  --primary-soft:#EFE9FF;
  --teal:#12C8A0;
  --teal-soft:#E2FBF4;
  --orange:#FF8A3D;
  --orange-soft:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-panel:#16121F;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8C86A0;
  --text-inv:#F3F0FA;
  --text-inv-2:#B9B3CC;
  --line:#E6E1F2;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,10,60,.05);
  --sh-2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh-3:0 0 0 1px rgba(108,59,244,.35),0 12px 40px -12px rgba(108,59,244,.45);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --t:.5s cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--primary);text-decoration:none;transition:color .25s,opacity .25s}
a:hover{color:var(--primary-deep)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--panel{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px;
  padding-left:16px;position:relative;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--teal));
}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16.5px;max-width:44em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;line-height:1.4;font-weight:600;letter-spacing:.4px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-deep);
}
.eyebrow--teal{background:var(--teal-soft);color:#0B7F66}
.eyebrow--orange{background:var(--orange-soft);color:#B9531A}

/* ===== Header / Dock ===== */
.site-header{
  position:fixed;top:20px;left:0;right:0;z-index:120;padding:0 20px;
  transition:top .3s ease;
}
.dock{
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  height:64px;padding:10px 14px 10px 18px;
  border-radius:22px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:0 8px 30px -12px rgba(60,30,140,.18);
  transition:height .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .dock{height:56px;box-shadow:0 14px 36px -12px rgba(60,30,140,.3)}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0}
.logo:hover{color:var(--text)}
.logo-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#8A5BFF);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 18px -8px rgba(108,59,244,.7);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:800;letter-spacing:.2px}
.logo-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.6px;margin-top:2px}
.dock-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-link{
  position:relative;font-size:15.5px;color:var(--text-2);padding:6px 2px;white-space:nowrap;
  transition:color .25s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary-deep);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;color:var(--text-2);
  border:1px solid var(--line);background:#fff;
  transition:color .25s,border-color .25s,transform .25s;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}
.dock-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);align-items:center;justify-content:center}
.dock-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.dock-toggle span::before,.dock-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.dock-toggle span::before{top:-6px}
.dock-toggle span::after{top:6px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .25s,box-shadow .25s,filter .25s,border-color .25s,background .25s,color .25s;
  min-width:44px;
}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,#6C3BF4,#8A5BFF);
  box-shadow:0 10px 24px -12px rgba(108,59,244,.85);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 30px -12px rgba(108,59,244,.9)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--primary-deep);border-color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary);
}
.link-arrow span{transition:transform .25s ease}
.link-arrow:hover span{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ===== Hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:150px 0 76px;
  background:linear-gradient(180deg,#F9F7FE 0%,#F6F4FB 100%);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.11;filter:saturate(.65);
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.22),rgba(108,59,244,0) 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-style:normal;opacity:.6}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center}
.cat-hero h1{
  font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.5px;
  margin:18px 0 0;
}
.cat-hero h1 span{
  background:linear-gradient(120deg,var(--primary),var(--teal));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.9;color:var(--text-2);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-stat{min-width:110px}
.hero-stat strong{display:block;font-size:26px;font-weight:800;color:var(--primary-deep);letter-spacing:-.5px}
.hero-stat span{font-size:13.5px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual img{box-shadow:var(--sh-2);border-radius:20px}
.hero-card{
  position:absolute;left:-18px;bottom:-26px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px 18px;box-shadow:var(--sh-2);max-width:250px;
}
.hero-card b{display:block;font-size:14px;color:var(--text)}
.hero-card small{display:block;font-size:12.5px;color:var(--text-3);line-height:1.6;margin-top:6px}

/* ===== Anchor pills ===== */
.anchor-bar{position:relative;z-index:3;margin-top:-26px}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;padding:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-2);scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);background:var(--panel);border:1px solid var(--line);
  transition:background .25s,color .25s,border-color .25s,transform .25s;
}
.anchor-pill:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:#D8CCFF;transform:translateY(-1px)}

/* ===== Split media ===== */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:var(--sh-2)}
.split-media::after{
  content:"";position:absolute;left:22px;right:22px;bottom:-14px;height:28px;
  background:linear-gradient(90deg,rgba(108,59,244,.35),rgba(18,200,160,.3));
  filter:blur(22px);border-radius:50%;z-index:-1;
}
.split-body h2{font-size:30px;line-height:1.3;font-weight:700;padding-left:16px;position:relative}
.split-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--teal));
}
.split-body p{margin-top:18px;color:var(--text-2);font-size:16.5px;line-height:1.9;max-width:34em}
.mini-list{margin-top:26px;display:grid;gap:12px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.mini-list li b{color:var(--text);font-weight:600}
.dot{
  width:8px;height:8px;border-radius:50%;flex:0 0 8px;margin-top:11px;
  background:linear-gradient(135deg,var(--primary),var(--teal));
}
.split .link-arrow{margin-top:26px}

/* ===== Steps ===== */
.steps{position:relative;margin-top:12px;padding-left:6px}
.steps::before{
  content:"";position:absolute;left:29px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(108,59,244,.5),rgba(18,200,160,.5));
}
.step{position:relative;display:grid;grid-template-columns:58px 1fr;gap:22px;padding:20px 0}
.step + .step{border-top:1px solid #EFEBF7}
.step-index{
  width:58px;height:58px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary-deep);
  font-size:15px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 18px -10px rgba(108,59,244,.7);
}
.step:nth-child(2) .step-index{border-color:#8A5BFF;color:#6C3BF4}
.step:nth-child(3) .step-index{border-color:var(--teal);color:#0B7F66}
.step:nth-child(4) .step-index{border-color:var(--orange);color:#B9531A}
.step-body h3{font-size:22px;line-height:1.35;font-weight:700}
.step-body p{margin-top:10px;color:var(--text-2);max-width:40em}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;line-height:1.4;font-weight:600;
  background:var(--primary-soft);color:var(--primary-deep);
}
.tag--teal{background:var(--teal-soft);color:#0B7F66}
.tag--orange{background:var(--orange-soft);color:#B9531A}
.tag--gray{background:#F1EEF9;color:var(--text-2)}

/* ===== Panel grid ===== */
.panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:8px}
.panel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.panel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8CCFF}
.panel-card h3{font-size:18px;line-height:1.4;font-weight:600;display:flex;align-items:center;gap:10px}
.panel-card h3 em{
  font-style:normal;width:28px;height:28px;border-radius:9px;flex-shrink:0;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  background:var(--primary-soft);color:var(--primary-deep);
}
.panel-card:nth-child(2n) h3 em{background:var(--teal-soft);color:#0B7F66}
.panel-card p{margin-top:12px;color:var(--text-2);font-size:15.5px}

/* ===== FAQ ===== */
.faq-list{margin-top:8px;display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:background .24s,border-color .24s,box-shadow .24s;
}
.faq-item[open]{background:var(--panel);border-color:#D8CCFF;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 22px;font-size:17px;font-weight:600;color:var(--text);
  display:flex;align-items:center;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;
  width:12px;height:12px;margin-top:-7px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(45deg);transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
}
.faq-answer{padding:0 22px 22px 25px;color:var(--text-2);font-size:16px;line-height:1.9;max-width:42em}

/* ===== CTA dark ===== */
.cta-dark{
  position:relative;overflow:hidden;background:var(--dark);color:var(--text-inv);
  padding:88px 0;
}
.cta-dark::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-dark .container{position:relative;z-index:2}
.cta-head{text-align:center;max-width:720px;margin:0 auto 44px}
.cta-head h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--text-inv)}
.cta-head p{margin-top:16px;color:var(--text-inv-2);font-size:16.5px}
.cta-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cta-card{
  display:block;padding:26px;border-radius:var(--r-card);
  background:var(--dark-panel);border:1px solid var(--line-dark);color:var(--text-inv);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.cta-card:hover{color:#fff;transform:translateY(-3px);border-color:rgba(108,59,244,.6);box-shadow:var(--sh-3)}
.cta-card b{display:block;font-size:18px;font-weight:700}
.cta-card span{display:block;margin-top:10px;font-size:14.5px;color:var(--text-inv-2);line-height:1.8}
.cta-card em{display:inline-flex;margin-top:18px;font-style:normal;font-size:14px;font-weight:600;color:#C9B6FF}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:var(--text-inv-2);padding-top:64px}
.site-footer .container{max-width:1200px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:var(--text-inv);margin-bottom:18px}
.footer-brand .logo-text strong{color:var(--text-inv)}
.footer-brand .logo-text em{color:var(--text-inv-2)}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:30em}
.footer-domain{display:inline-block;margin-top:16px;font-size:13px;color:#7D7791}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-inv);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--text-inv-2);font-size:14.5px;border-bottom:2px solid transparent;transition:color .25s,border-color .25s}
.footer-col a:hover{color:#fff;border-bottom-color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;font-size:13px;color:#7D7791;
}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .container{max-width:1100px}
  .dock-nav{gap:18px}
  .nav-link{font-size:15px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .container{padding:0 20px}
  .dock-nav{
    display:none;position:absolute;left:20px;right:20px;top:74px;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(255,255,255,.97);border:1px solid var(--line);
    border-radius:0 0 20px 20px;box-shadow:var(--sh-2);padding:10px 14px 16px;
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  }
  .dock-nav.is-open{display:flex}
  .nav-link{padding:14px 6px;font-size:16px;min-height:48px;display:flex;align-items:center;border-bottom:1px solid #EFEBF7}
  .nav-link:last-child{border-bottom:0}
  .nav-link::after{display:none}
  .dock-toggle{display:flex;margin-left:auto}
  .dock-actions{margin-left:0}
  .dock-actions .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .cat-hero{padding:132px 0 64px}
  .cat-hero h1{font-size:33px}
  .split{grid-template-columns:1fr;gap:36px}
  .cta-links{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-card{position:static;margin-top:18px;max-width:none}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .section{padding:44px 0}
  .container{padding:0 16px}
  .site-header{top:12px;padding:0 16px}
  .dock{height:58px;padding:8px 10px 8px 12px;border-radius:18px}
  .site-header.is-scrolled .dock{height:54px}
  .logo-mark{width:36px;height:36px;border-radius:11px;font-size:13px}
  .logo-text strong{font-size:14px}
  .logo-text em{font-size:11px}
  .cat-hero{padding:118px 0 54px}
  .cat-hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:18px}
  .hero-stat strong{font-size:22px}
  .section-head h2,.split-body h2,.cta-head h2{font-size:24px}
  .panel-grid{grid-template-columns:1fr}
  .step{grid-template-columns:46px 1fr;gap:16px}
  .step-index{width:46px;height:46px;font-size:14px}
  .steps::before{left:23px}
  .step-body h3{font-size:19px}
  .faq-item summary{font-size:16px;padding:18px 48px 18px 18px}
  .faq-answer{padding:0 18px 18px 21px;font-size:15.5px}
  .cta-dark{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{font-size:12.5px}
  .anchor-inner{border-radius:18px}
}
@media (max-width:420px){
  .cat-hero h1{font-size:25px}
  .hero-stat strong{font-size:20px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .cta-card{padding:20px}
  .panel-card{padding:20px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand:#6C3BF4;
  --brand-strong:#4B22C9;
  --brand-soft:#EFE9FF;
  --cyan:#12C8A0;
  --cyan-soft:#E2FBF4;
  --orange:#FF8A3D;
  --orange-soft:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-panel:#16121F;
  --ink:#1A1526;
  --ink-2:#5B5470;
  --ink-3:#8C86A0;
  --on-dark:#F3F0FA;
  --on-dark-2:#B9B3CC;
  --line:#E6E1F2;
  --line-soft:#EFEBF7;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,10,60,.05);
  --sh-2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh-glow:0 0 0 1px rgba(108,59,244,.35),0 12px 40px -12px rgba(108,59,244,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.2px;}
p{margin:0;}
::selection{background:var(--brand-soft);color:var(--brand-strong);}

/* ============ 容器与排版 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--panel);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;margin-top:14px;}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.lead{color:var(--ink-2);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1.4;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-strong);
}
.tag-cyan{background:var(--cyan-soft);color:#0A8F73;}
.tag-orange{background:var(--orange-soft);color:#C25A14;}

/* ============ Dock 导航 ============ */
.site-header{position:sticky;top:0;z-index:90;padding:20px 0 0;transition:padding .3s var(--ease);}
.site-header.is-scrolled{padding-top:10px;}
.dock-shell{
  width:calc(100% - 48px);max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  min-height:64px;padding:10px 14px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:0 8px 30px -12px rgba(60,30,140,.18);
  transition:min-height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock-shell{min-height:56px;box-shadow:0 12px 34px -14px rgba(60,30,140,.3);}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:#fff;letter-spacing:.5px;
  background:linear-gradient(135deg,var(--brand),#8A5BFF);
  box-shadow:0 6px 16px -6px rgba(108,59,244,.75);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:15px;font-weight:800;}
.logo-text em{font-size:11.5px;font-style:normal;color:var(--ink-3);letter-spacing:1.6px;}
.dock-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15.5px;color:var(--ink-2);padding:6px 2px;
  white-space:nowrap;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.burger{display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.mobile-panel{
  display:none;max-width:1120px;margin:10px auto 0;
  width:calc(100% - 48px);padding:10px;
  background:rgba(255,255,255,.97);
  border:1px solid var(--line);border-radius:0 0 20px 20px;
  box-shadow:0 18px 40px -20px rgba(60,30,140,.35);
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:14px;
  color:var(--ink-2);font-size:15.5px;transition:background .2s var(--ease),color .2s var(--ease);
}
.mobile-panel a:hover{background:var(--brand-soft);color:var(--brand-strong);}
.mobile-panel a.is-active{background:var(--brand-soft);color:var(--brand-strong);font-weight:700;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;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),
             filter .2s var(--ease);
}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,#6C3BF4,#8A5BFF);
  box-shadow:0 10px 24px -12px rgba(108,59,244,.85);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 30px -12px rgba(108,59,244,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform .25s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ 分类 Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:84px 0 72px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(246,244,251,.97) 0%,rgba(246,244,251,.82) 52%,rgba(246,244,251,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C4BFD6;}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:800;max-width:820px;margin:16px 0 0;
}
.page-hero .hero-sub{
  max-width:640px;margin-top:20px;font-size:17px;color:var(--ink-2);line-height:1.85;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:44px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-metrics li{display:flex;align-items:baseline;gap:10px;}
.hero-metrics .num{font-size:26px;font-weight:800;color:var(--brand-strong);letter-spacing:-.5px;}
.hero-metrics .lbl{font-size:14px;color:var(--ink-2);}

/* ============ 胶囊锚点导航 ============ */
.anchor-bar{position:relative;z-index:3;margin-top:-26px;}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-2);scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-scroll a{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:40px;
  padding:0 18px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;
  color:var(--ink-2);background:var(--panel);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.anchor-scroll a:hover{background:var(--brand-soft);color:var(--brand-strong);transform:translateY(-1px);}

/* ============ 横向阶段时间轴 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:8%;right:8%;top:25px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-soft),var(--brand),var(--cyan));
  opacity:.5;z-index:0;
}
.tl-item{display:flex;flex-direction:column;gap:18px;position:relative;z-index:1;}
.tl-node{
  width:50px;height:50px;border-radius:50%;display:grid;place-items:center;
  font-size:15px;font-weight:800;color:var(--brand-strong);
  background:#fff;border:2px solid var(--brand-soft);
  align-self:center;box-shadow:var(--sh-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.tl-item:hover .tl-node{border-color:var(--brand);box-shadow:0 8px 20px -10px rgba(108,59,244,.7);transform:translateY(-2px);}
.tl-card{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--sh-1);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.tl-item:hover .tl-card{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD3F5;}
.tl-thumb{overflow:hidden;border-radius:var(--r-img);margin-bottom:16px;aspect-ratio:16/10;background:var(--panel);}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.tl-item:hover .tl-thumb img{transform:scale(1.03);}
.tl-card h3{font-size:18px;font-weight:700;line-height:1.4;}
.tl-card p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.tl-card .tag{margin-top:14px;}

/* ============ 主题速览卡片 ============ */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD3F5;}
.card-thumb{overflow:hidden;border-radius:var(--r-img);aspect-ratio:3/2;background:var(--panel);margin-bottom:18px;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.03);}
.card h3{font-size:20px;font-weight:700;line-height:1.4;}
.card p{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.card .card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line-soft);}
.card .tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ============ 深色要点区 ============ */
.dark-section{
  background:var(--dark);color:var(--on-dark);position:relative;overflow:hidden;
}
.dark-section::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;opacity:.09;
}
.dark-section .container{position:relative;z-index:2;}
.dark-section .eyebrow{background:rgba(108,59,244,.18);color:#C9B6FF;}
.dark-section .eyebrow::before{background:#C9B6FF;}
.dark-section .section-head h2{color:var(--on-dark);}
.dark-section .section-head p{color:var(--on-dark-2);}
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.split-media{overflow:hidden;border-radius:var(--r-panel);border:1px solid var(--line-dark);}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0;}
.check-list{display:grid;gap:14px;}
.check-item{
  display:flex;gap:16px;padding:20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line-dark);
  transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.check-item:hover{background:rgba(255,255,255,.07);border-color:rgba(108,59,244,.5);transform:translateY(-2px);}
.check-dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:rgba(18,200,160,.16);color:#5FE3C5;font-weight:800;font-size:14px;
}
.check-item h3{font-size:17px;font-weight:700;color:var(--on-dark);}
.check-item p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--on-dark-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item.is-open{border-color:#D6C9F7;background:var(--panel);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;padding:16px 20px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-strong);}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line);
  color:var(--ink-3);transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(180deg);color:var(--brand);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 20px 20px;position:relative;}
.faq-a-inner p{font-size:15.5px;color:var(--ink-2);line-height:1.85;}
.faq-item.is-open .faq-a-inner::before{
  content:"";position:absolute;left:0;top:2px;bottom:20px;width:3px;border-radius:3px;background:var(--brand);
}

/* ============ CTA ============ */
.cta-section{background:var(--dark);color:var(--on-dark);padding:80px 0;position:relative;overflow:hidden;}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.10;
}
.cta-section .container{position:relative;z-index:2;text-align:center;}
.cta-section h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--on-dark);}
.cta-section p{margin:16px auto 0;max-width:640px;color:var(--on-dark-2);font-size:16px;}
.cta-form{
  display:flex;gap:12px;justify-content:center;align-items:center;
  margin:32px auto 0;max-width:520px;
}
.cta-form input{
  flex:1;min-height:48px;padding:0 18px;border-radius:var(--r-input);
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:var(--on-dark);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.cta-form input::placeholder{color:#7E788F;}
.cta-form input:focus{
  outline:none;border-color:var(--brand);background:rgba(255,255,255,.09);
  box-shadow:0 0 0 3px rgba(108,59,244,.35);
}
.cta-note{margin-top:16px;font-size:13.5px;color:#7E788F;}
.cta-links{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--on-dark-2);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text strong{color:var(--on-dark);}
.footer-brand .logo-text em{color:#7E788F;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:340px;}
.footer-domain{display:inline-block;margin-top:16px;font-size:12.5px;color:#6E687F;letter-spacing:.4px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--on-dark);margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{
  font-size:14.5px;color:var(--on-dark-2);
  transition:color .2s var(--ease),text-decoration-color .2s var(--ease);
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;
}
.footer-col a:hover{color:#fff;text-decoration-color:#fff;}
.footer-bottom{
  margin-top:52px;padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:#6E687F;
  border-top:1px solid var(--line-dark);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1100px;}
}
@media (max-width:1023px){
  .dock-nav{display:none;}
  .burger{display:flex;}
  .dock-actions .btn-sm{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:64px 0 56px;}
  .page-hero h1{font-size:34px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cards-3{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .timeline::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .dock-shell{width:calc(100% - 32px);gap:12px;padding:8px 12px;border-radius:20px;}
  .mobile-panel{width:calc(100% - 32px);}
  .page-hero{padding:48px 0 44px;}
  .page-hero h1{font-size:28px;}
  .page-hero .hero-sub{font-size:16px;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:28px;}
  .hero-metrics{gap:12px 24px;margin-top:32px;padding-top:20px;}
  .hero-metrics .num{font-size:22px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .cards-3{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:20px;}
  .timeline::before{
    display:block;left:23px;right:auto;top:18px;bottom:18px;width:2px;height:auto;
    background:linear-gradient(180deg,var(--brand-soft),var(--brand),var(--cyan));
  }
  .tl-item{display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start;}
  .tl-node{align-self:start;width:48px;height:48px;}
  .cta-form{flex-direction:column;align-items:stretch;}
  .cta-form .btn{width:100%;}
  .anchor-scroll{padding:10px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:44px;}
  .footer-col.is-collapsible h4{cursor:pointer;}
}
@media (max-width:420px){
  body{font-size:16px;}
  .page-hero h1{font-size:25px;}
  .section-head h2{font-size:22px;}
  .tl-card h3,.card h3{font-size:17px;}
  .cta-section{padding:52px 0;}
  .cta-section h2{font-size:23px;}
}

/* roulang page: category3 */
:root{
  --brand:#6C3BF4;
  --brand-deep:#4B22C9;
  --brand-lift:#8A5BFF;
  --brand-soft:#EFE9FF;
  --cyan:#12C8A0;
  --cyan-soft:#E2FBF4;
  --orange:#FF8A3D;
  --orange-soft:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-panel:#16121F;
  --text:#1A1526;
  --muted:#5B5470;
  --faint:#8C86A0;
  --inv:#F3F0FA;
  --inv-muted:#B9B3CC;
  --line:#E6E1F2;
  --line-soft:#EFEBF7;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,10,60,.05);
  --sh-2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh-3:0 8px 30px -12px rgba(60,30,140,.18);
  --glow:0 0 0 1px rgba(108,59,244,.35), 0 12px 40px -12px rgba(108,59,244,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.2px;}
h1{font-size:40px;line-height:1.25;font-weight:800;}
h2{font-size:30px;line-height:1.3;font-weight:700;margin:44px 0 18px;}
h3{font-size:22px;line-height:1.35;font-weight:700;}
h4{font-size:18px;line-height:1.4;font-weight:600;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{margin-top:0;}
.section-head p{color:var(--muted);margin:0;font-size:16.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.6px;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.marked{position:relative;padding-left:16px;}
.marked::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--brand-lift));
}

/* ============ 浮动 Dock 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:20px 16px 12px;
  transition:padding .3s var(--ease);
}
.site-header.is-scrolled{padding-top:10px;}
.dock{
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  height:64px;padding:10px 14px;
  border-radius:22px;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
  transition:height .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock{
  height:56px;
  box-shadow:0 14px 38px -16px rgba(60,30,140,.34);
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-lift));
  color:#fff;font-size:14px;font-weight:800;letter-spacing:1px;
  box-shadow:0 6px 16px -6px rgba(108,59,244,.7);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:15.5px;font-weight:800;color:var(--text);}
.logo-text em{font-size:12px;font-style:normal;color:var(--faint);letter-spacing:.6px;}
.dock-nav{
  display:flex;align-items:center;gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;font-size:15.5px;color:var(--muted);
  padding:6px 2px;transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  cursor:pointer;transition:.2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--sh-2);}
.icon-btn:focus-visible,.menu-btn:focus-visible,.btn:focus-visible,.chip:focus-visible,.faq-q:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  place-items:center;color:var(--text);
}
.menu-btn span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .25s var(--ease);
}
.menu-btn span::before{top:-5px;}
.menu-btn span::after{top:5px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-lift));
  color:#fff;box-shadow:0 10px 26px -12px rgba(108,59,244,.75);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 34px -14px rgba(108,59,244,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--text);border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sh-2);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
}
.btn-link i{font-style:normal;transition:transform .25s var(--ease);}
.btn-link:hover i{transform:translateX(4px);}
.btn-block{width:100%;}

/* ============ 分类 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:36px 0 76px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.13;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 380px at 12% 0%,rgba(108,59,244,.16),transparent 68%),
    linear-gradient(180deg,rgba(246,244,251,.35),rgba(246,244,251,.95));
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--faint);margin-bottom:26px;
}
.breadcrumb a{color:var(--faint);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#C9C3DC;}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;
  gap:52px;align-items:center;
}
.hero-copy h1{margin-bottom:18px;}
.hero-copy h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(108,59,244,.22) 62%);
  padding:0 2px;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:36em;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:var(--brand-soft);color:var(--brand);
}
.badge.cyan{background:var(--cyan-soft);color:#0B8F72;}
.badge.orange{background:var(--orange-soft);color:#C4591A;}
.badge.dark{background:rgba(255,255,255,.10);color:var(--inv);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  padding-top:24px;border-top:1px solid var(--line);
}
.metric{min-width:110px;}
.metric b{display:block;font-size:26px;font-weight:800;color:var(--brand);line-height:1.2;}
.metric span{font-size:13px;color:var(--faint);}
.hero-visual{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid var(--line);
  background:var(--dark);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;opacity:.94;}
.hero-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 20px;color:var(--inv);font-size:13.5px;
  background:linear-gradient(180deg,transparent,rgba(12,10,18,.86));
}

/* ============ 页内胶囊锚点 ============ */
.anchor-bar{
  position:relative;z-index:3;
  margin-top:-34px;padding-bottom:8px;
}
.chips-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:12px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);box-shadow:var(--sh-3);
  scrollbar-width:none;
}
.chips-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--panel);border:1px solid var(--line);
  color:var(--muted);font-size:14.5px;cursor:pointer;
  transition:.2s var(--ease);
}
.chip:hover{color:var(--brand);border-color:var(--brand);background:#fff;}
.chip.is-active{
  background:linear-gradient(135deg,var(--brand),var(--brand-lift));
  border-color:transparent;color:#fff;font-weight:600;
  box-shadow:0 8px 20px -10px rgba(108,59,244,.8);
}

/* ============ 卡片墙 ============ */
.card-wall{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;margin-top:8px;
}
.card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD4F5;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media{position:relative;overflow:hidden;background:var(--dark);}
.card-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .5s var(--ease);
}
.card-media .badge{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.92);color:var(--brand);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.card-points{display:flex;flex-direction:column;gap:8px;margin:0 0 18px;}
.card-points li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--muted);line-height:1.7;
}
.card-points li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.card.is-hidden{display:none;}

/* ============ 深色参数区 ============ */
.dark-band{
  background:var(--dark);color:var(--inv);
  padding:80px 0;
  position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.10;
}
.dark-band .container{position:relative;z-index:2;}
.dark-band h2,.dark-band h3{color:var(--inv);}
.dark-band .section-head p{color:var(--inv-muted);}
.dark-band .eyebrow{color:var(--brand-lift);}
.dark-band .eyebrow::before{background:var(--brand-lift);}
.dark-band .marked::before{background:linear-gradient(180deg,var(--brand-lift),var(--cyan));}
.spec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.spec{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-dark);
  border-radius:18px;padding:24px 22px;
  transition:.3s var(--ease);
}
.spec:hover{
  background:rgba(108,59,244,.14);
  border-color:rgba(108,59,244,.5);
  box-shadow:var(--glow);
  transform:translateY(-3px);
}
.spec b{display:block;font-size:30px;font-weight:800;color:#fff;line-height:1.2;margin-bottom:6px;}
.spec strong{display:block;font-size:15px;color:var(--inv);margin-bottom:8px;font-weight:600;}
.spec p{font-size:13.5px;color:var(--inv-muted);margin:0;line-height:1.7;}
.spec .line{display:block;width:36px;height:3px;border-radius:3px;background:var(--cyan);margin-top:16px;}
.dark-note{
  margin-top:28px;padding:18px 22px;border-radius:16px;
  border:1px solid rgba(255,138,61,.35);background:rgba(255,138,61,.10);
  font-size:14.5px;color:#FFD9BE;
}

/* ============ 编号清单 ============ */
.split{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;
}
.split-side{position:sticky;top:110px;}
.split-side h2{margin-top:0;}
.split-side p{color:var(--muted);}
.step-list{border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding:26px 4px;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.step:hover{background:var(--panel);}
.step-num{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  border:1.5px solid var(--brand);color:var(--brand);
  font-weight:800;font-size:15px;background:#fff;
}
.step h3{font-size:18.5px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;margin:0;}

/* ============ FAQ ============ */
.faq-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);
  padding:10px 26px;box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 8px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .24s var(--ease);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand);}
.faq-item.is-open .faq-icon::before{background:#fff;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a p{
  margin:0;padding:0 8px 24px;color:var(--muted);font-size:15.5px;
  border-left:3px solid var(--brand);padding-left:18px;
}
.faq-item.is-open .faq-a{background:var(--panel);}

/* ============ CTA ============ */
.cta-panel{
  border-radius:var(--r-panel);
  background:linear-gradient(135deg,#150F26 0%,#241442 60%,#3A1E74 100%);
  color:var(--inv);padding:56px 48px;position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.55),transparent 68%);
}
.cta-panel > *{position:relative;z-index:2;}
.cta-panel h2{color:#fff;margin:0 0 14px;}
.cta-panel p{color:var(--inv-muted);max-width:52em;margin-bottom:26px;}
.cta-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:32px;}
.cta-card{
  display:block;padding:20px;border-radius:16px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  transition:.3s var(--ease);
}
.cta-card:hover{background:rgba(108,59,244,.28);border-color:rgba(138,91,255,.6);transform:translateY(-3px);}
.cta-card strong{display:block;color:#fff;font-size:16.5px;margin-bottom:8px;font-weight:600;}
.cta-card span{display:block;color:var(--inv-muted);font-size:13.5px;line-height:1.7;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-panel .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.cta-panel .btn-ghost:hover{border-color:#fff;color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);color:var(--inv-muted);
  padding:64px 0 0;margin-top:80px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text strong{color:#fff;}
.footer-brand .logo-text em{color:var(--inv-muted);}
.footer-brand p{font-size:14.5px;line-height:1.8;margin-bottom:16px;color:var(--inv-muted);}
.footer-domain{
  display:inline-block;font-size:12.5px;color:#7E7796;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.04);
}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14.5px;color:var(--inv-muted);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7E7796;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1100px;}
  .dock-nav{gap:20px;}
  .nav-link{font-size:14.5px;}
}
@media (max-width:1023px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .container{padding:0 20px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .card-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-side{position:static;}
  .cta-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .dock-nav{
    position:absolute;top:76px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--line);
    border-radius:0 0 20px 20px;box-shadow:var(--sh-2);
    padding:8px 10px;margin-left:0;
    display:none;
  }
  .dock-nav.is-open{display:flex;}
  .nav-link{padding:14px 12px;min-height:48px;display:flex;align-items:center;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--brand-soft);}
  .nav-link:hover{background:var(--panel);}
  .menu-btn{display:grid;}
  .dock{position:relative;}
  .icon-btn{display:none;}
}
@media (max-width:767px){
  body{font-size:16.5px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:20px;}
  .section{padding:44px 0;}
  .container{padding:0 16px;}
  .page-hero{padding:20px 0 60px;}
  .dock{height:60px;border-radius:20px;}
  .logo-text strong{font-size:14.5px;}
  .card-wall{grid-template-columns:1fr;}
  .spec-grid{grid-template-columns:1fr;}
  .spec b{font-size:26px;}
  .faq-list{padding:6px 18px;border-radius:20px;}
  .faq-q{font-size:16px;padding:18px 4px;}
  .cta-panel{padding:36px 24px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-actions .btn{width:100%;}
  .step{grid-template-columns:44px 1fr;gap:14px;padding:20px 2px;}
  .step-num{width:38px;height:38px;font-size:14px;}
  .dark-band{padding:56px 0;}
}
@media (max-width:420px){
  h1{font-size:25px;}
  h2{font-size:21px;}
  .metric b{font-size:22px;}
  .btn{padding:0 20px;font-size:15px;}
  .cta-panel{padding:32px 18px;}
}

/* roulang page: category4 */
:root{
  --purple:#6C3BF4;
  --purple-deep:#4B22C9;
  --purple-light:#8A5BFF;
  --purple-tint:#EFE9FF;
  --cyan:#12C8A0;
  --cyan-tint:#E2FBF4;
  --orange:#FF8A3D;
  --orange-tint:#FFF0E6;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --panel:#FAF8FF;
  --dark:#0C0A12;
  --dark-panel:#16121F;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8C86A0;
  --inv:#F3F0FA;
  --inv-2:#B9B3CC;
  --line:#E6E1F2;
  --line-soft:#EFEBF7;
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(20,10,60,.05);
  --sh-2:0 8px 24px -8px rgba(60,30,140,.16);
  --sh-glow:0 0 0 1px rgba(108,59,244,.35),0 12px 40px -12px rgba(108,59,244,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:14px}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
a:hover{color:var(--purple)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--purple);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
  position:fixed;
  top:20px;left:0;right:0;
  z-index:300;
  padding:0 16px;
  transition:top .3s var(--ease);
}
.dock-nav-bar{
  max-width:1120px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:0 8px 30px -12px rgba(60,30,140,.18);
  transition:height .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled .dock-nav-bar{
  height:56px;
  box-shadow:0 14px 34px -14px rgba(60,30,140,.3);
  background:rgba(255,255,255,.94);
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--purple),var(--purple-light));
  color:#fff;
  font-size:14px;
  font-weight:800;
  letter-spacing:.5px;
  box-shadow:0 6px 18px -8px rgba(108,59,244,.7);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:15px;font-weight:800;letter-spacing:.2px}
.logo-text em{font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:1.2px}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--purple);background:var(--purple-tint)}
.nav-link.is-active{
  color:var(--purple-deep);
  font-weight:700;
  background:var(--purple-tint);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--purple);
}
.nav-cta{
  margin-left:6px;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,#6C3BF4,#8A5BFF);
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  box-shadow:0 8px 20px -10px rgba(108,59,244,.9);
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 28px -12px rgba(108,59,244,1)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#6C3BF4,#8A5BFF);
  color:#fff;
  box-shadow:0 10px 24px -12px rgba(108,59,244,.95);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 32px -14px rgba(108,59,244,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;
  color:var(--text);
  border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--purple-deep);border-color:var(--purple);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:700;
  color:var(--purple-deep);
}
.btn-link .arw{transition:transform .3s var(--ease)}
.btn-link:hover .arw{transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--purple-tint);
  color:var(--purple-deep);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.6px;
  margin-bottom:16px;
}
.eyebrow.cyan{background:var(--cyan-tint);color:#0B7A63}
.eyebrow.orange{background:var(--orange-tint);color:#B75A19}
h2.title{
  font-size:30px;
  font-weight:800;
  position:relative;
  padding-left:18px;
  margin-bottom:14px;
}
h2.title::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:5px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--purple),var(--cyan));
}
.section-sub{color:var(--text-2);font-size:16px;max-width:44em}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:700;
  background:var(--purple-tint);
  color:var(--purple-deep);
}
.badge-cyan{background:var(--cyan-tint);color:#0B7A63}
.badge-orange{background:var(--orange-tint);color:#B75A19}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  background:
    linear-gradient(112deg,rgba(246,244,251,.98) 0%,rgba(246,244,251,.90) 52%,rgba(239,233,255,.74) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.16),rgba(108,59,244,0) 68%);
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--purple-deep)}
.crumb .sep{opacity:.6}
.hero-inner{position:relative;z-index:1;max-width:820px}
.page-hero h1{
  font-size:40px;
  font-weight:800;
  line-height:1.25;
  margin-bottom:18px;
}
.page-hero h1 .hl{color:var(--purple-deep)}
.hero-lead{
  font-size:16.5px;
  color:var(--text-2);
  max-width:40em;
  margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}

/* ---------- 锚点胶囊 ---------- */
.anchor-wrap{
  position:sticky;
  top:96px;
  z-index:120;
  padding:14px 0;
  background:rgba(246,244,251,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:all .25s var(--ease);
}
.anchor-bar a:hover,.anchor-bar a:focus-visible{
  color:var(--purple-deep);
  border-color:var(--purple);
  background:var(--purple-tint);
  transform:translateY(-1px);
}

/* ---------- 橙色提示条 ---------- */
.notice-bar{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 24px;
  border-radius:var(--r-card);
  background:var(--orange-tint);
  border:1px solid rgba(255,138,61,.35);
  border-left:4px solid var(--orange);
  margin-bottom:44px;
}
.notice-bar .notice-ico{
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:#fff;
  color:var(--orange);
  font-weight:800;
  font-size:16px;
}
.notice-bar h3{font-size:16px;margin-bottom:6px}
.notice-bar p{font-size:14.5px;color:#7A4A22;line-height:1.75}

/* ---------- 对照表 ---------- */
.compare-head{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);
  gap:32px;
  padding:0 0 14px;
  border-bottom:2px solid var(--line);
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--text-3);
}
.compare-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:6px 28px;
  box-shadow:var(--sh-1);
}
.compare-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);
  gap:32px;
  padding:26px 0;
  border-bottom:1px solid var(--line-soft);
  transition:background .3s var(--ease);
}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:var(--panel)}
.compare-left h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
  line-height:1.45;
}
.compare-left .badge{margin-top:2px}
.compare-right{color:var(--text-2);font-size:15.5px}
.compare-right strong{color:var(--text)}
.compare-right .mini-list{margin-top:12px;display:grid;gap:8px}
.compare-right .mini-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-2);
}
.compare-right .mini-list li::before{
  content:"";
  position:absolute;
  left:2px;top:10px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--cyan);
}

/* ---------- 自检清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.check-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD3F6}
.check-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.check-num{
  width:44px;height:44px;
  flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:50%;
  border:1.5px solid var(--purple);
  color:var(--purple-deep);
  font-weight:800;
  font-size:14px;
  background:var(--purple-tint);
}
.check-card h3{font-size:18px}
.check-card p{color:var(--text-2);font-size:15px}

/* ---------- 深色福利区 ---------- */
.dark-panel{
  background:var(--dark);
  color:var(--inv);
  border-radius:var(--r-panel);
  padding:56px;
  position:relative;
  overflow:hidden;
}
.dark-panel::before{
  content:"";
  position:absolute;
  left:-80px;bottom:-120px;
  width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,244,.35),rgba(108,59,244,0) 70%);
  pointer-events:none;
}
.dark-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:48px;
  align-items:start;
}
.dark-panel h2{color:#fff;font-size:28px;margin-bottom:14px}
.dark-panel .dark-lead{color:var(--inv-2);font-size:15.5px;margin-bottom:24px}
.dark-panel .badge{background:rgba(255,255,255,.10);color:#D9D2FF}
.rule-list{display:grid;gap:0}
.rule-item{
  padding:18px 0;
  border-bottom:1px solid var(--line-dark);
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:16px;
}
.rule-item:last-child{border-bottom:0}
.rule-item .dot{
  width:10px;height:10px;
  margin-top:10px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(18,200,160,.16);
}
.rule-item h3{color:#fff;font-size:16.5px;margin-bottom:6px}
.rule-item p{color:var(--inv-2);font-size:14.5px}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin-top:34px;
  position:relative;
}
.stat-box{
  background:var(--dark-panel);
  border:1px solid var(--line-dark);
  border-radius:16px;
  padding:20px;
}
.stat-box b{display:block;font-size:28px;font-weight:800;color:#fff;letter-spacing:.5px}
.stat-box span{font-size:13.5px;color:var(--inv-2)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:940px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.faq-item[open]{
  background:var(--panel);
  border-color:#DCD3F6;
  border-left:3px solid var(--purple);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  display:flex;
  align-items:center;
  gap:16px;
  font-size:16.5px;
  font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{
  margin-left:auto;
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--purple-tint);
  color:var(--purple-deep);
  font-size:14px;
  transition:transform .25s var(--ease);
}
.faq-item[open] summary .ico{transform:rotate(180deg)}
.faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15.5px}

/* ---------- 入口 CTA ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD3F6}
.entry-card h3{font-size:18px;margin:14px 0 10px}
.entry-card p{color:var(--text-2);font-size:14.5px;flex:1}
.entry-card .btn-link{margin-top:18px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:var(--inv-2);
  padding-top:64px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:var(--inv-2)}
.footer-brand p{font-size:14.5px;line-height:1.8;max-width:34em}
.footer-domain{display:inline-block;margin-top:14px;font-size:13px;color:#8C86A0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--inv-2)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8C86A0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1100px}
  .footer-grid{gap:32px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    background:rgba(255,255,255,.98);
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:0 18px 40px -18px rgba(60,30,140,.35);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:13px 14px;font-size:15px;border-radius:12px}
  .nav-link.is-active::after{display:none}
  .nav-cta{margin:6px 0 0;text-align:center}
  .dock-nav-bar{position:relative;height:auto;min-height:60px;flex-wrap:wrap}
  .section{padding:64px 0}
  .page-hero{padding:130px 0 56px}
  .page-hero h1{font-size:32px}
  .compare-list{padding:6px 20px}
  .compare-head,.compare-row{grid-template-columns:minmax(0,1fr);gap:12px}
  .compare-head{display:none}
  .dark-panel{padding:40px 32px}
  .dark-grid{grid-template-columns:minmax(0,1fr);gap:28px}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .container{padding:0 16px}
  .section{padding:44px 0}
  .page-hero{padding:118px 0 44px}
  .page-hero h1{font-size:28px}
  h2.title{font-size:24px;padding-left:14px}
  .hero-actions .btn{width:100%}
  .anchor-wrap{top:84px}
  .check-grid,.entry-grid,.stat-row{grid-template-columns:minmax(0,1fr)}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
  .dark-panel{padding:32px 22px}
  .dark-panel h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:8px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:16px}
  .site-footer{padding-top:48px;margin-top:56px}
  .footer-bottom{flex-direction:column;font-size:12.5px}
}
@media (max-width:420px){
  .page-hero h1{font-size:25px}
  .logo-text strong{font-size:13.5px}
  .logo-text em{font-size:10.5px}
  .notice-bar{padding:16px 16px}
  .entry-card,.check-card{padding:20px}
}