/* roulang page: index */
:root{
  --brand:#6D28FF;
  --brand-deep:#4A12C7;
  --accent:#00E0A8;
  --highlight:#FFC53D;
  --hot:#FF3D6E;
  --ink:#0D0917;
  --ink-card:#171126;
  --light:#F6F4FF;
  --white:#FFFFFF;
  --text:#151022;
  --text-sub:#5B5470;
  --dark-text:#EDE9FF;
  --dark-sub:#A79FC7;
  --line-light:#E5E0F5;
  --radius-card:20px;
  --radius-img:16px;
  --shadow-card:0 10px 30px -16px rgba(40,16,90,.28);
  --shadow-card-hover:0 22px 44px -22px rgba(40,16,90,.42);
  --shadow-dark:0 12px 40px -20px rgba(0,0,0,.6);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.24;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.wrap{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%;}
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.bg-light{background:var(--light);}
.bg-dark{background:var(--ink);color:var(--dark-text);position:relative;overflow:hidden;}
.bg-dark h2,.bg-dark h3{color:var(--dark-text);}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部通告条 ============ */
.topbar{
  background:linear-gradient(90deg,var(--brand-deep),#2B0A6B);
  color:#E9E3FF;
  font-size:13.5px;
  height:38px;
  display:flex;
  align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-left i{color:var(--accent);font-size:12px;}
.topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-close{color:#C9BEF2;font-size:14px;padding:4px 8px;border-radius:8px;transition:.2s;}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.12);}
.topbar.is-hidden{display:none;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,9,23,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(109,40,255,.14);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -22px rgba(0,0,0,.85);background:rgba(13,9,23,.97);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:15px;letter-spacing:.5px;
  box-shadow:0 8px 22px -10px rgba(109,40,255,.9);
}
.brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:.3px;}
.brand-text em{font-style:normal;color:var(--accent);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  color:#C9C1E6;
  font-size:15px;
  padding:9px 14px;
  border-radius:10px;
  transition:color .2s,background .2s;
}
.nav-links a::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;border-radius:2px;
}
.nav-links a:hover{color:#fff;background:rgba(109,40,255,.16);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:#fff;}
.nav-links a.is-active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:46px;border-radius:999px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(109,40,255,.95);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 34px -16px rgba(109,40,255,1);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-outline{border:1.5px solid rgba(109,40,255,.55);color:#D7CFFF;background:transparent;border-radius:12px;height:46px;}
.btn-outline:hover{background:rgba(109,40,255,.16);border-color:var(--brand);color:#fff;}
.btn-outline:active{background:rgba(109,40,255,.26);}
.btn-ghost{border:1.5px solid var(--line-light);color:var(--text);background:#fff;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(109,40,255,.06);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.16);color:#fff;
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{background:rgba(109,40,255,.2);}
.mobile-drawer{
  display:none;
  background:rgba(13,9,23,.99);
  border-top:1px solid rgba(109,40,255,.18);
  padding:12px 0 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.m-link{
  display:block;padding:14px 0;color:#D5CDEE;font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer a.m-link.is-active{color:var(--accent);}
.mobile-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.mobile-cta .btn{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;
  color:var(--dark-text);
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 420px at 12% 8%, rgba(109,40,255,.30), transparent 62%),
    radial-gradient(720px 380px at 88% 82%, rgba(0,224,168,.18), transparent 66%),
    linear-gradient(180deg, rgba(13,9,23,.90), rgba(13,9,23,.96)),
    url('/assets/images/backpic/back-1.png');
  background-size:auto,auto,auto,cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;
  padding:88px 0 104px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(0,224,168,.12);
  border:1px solid rgba(0,224,168,.35);
  color:var(--accent);font-size:13.5px;font-weight:600;
  margin-bottom:22px;
}
.hero h1{
  color:#fff;
  font-size:52px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 .grad{
  background:linear-gradient(100deg,var(--highlight),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  color:var(--dark-sub);
  font-size:17px;
  line-height:1.85;
  max-width:560px;
  margin-bottom:30px;
}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
}
.hero-trust li{display:flex;align-items:center;gap:8px;color:#BEB6DA;font-size:14px;}
.hero-trust i{color:var(--accent);font-size:13px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:24px;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.9);
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;border-radius:24px;}
.float-card{
  position:absolute;left:-26px;bottom:-26px;
  background:rgba(23,17,38,.94);
  border:1px solid rgba(109,40,255,.35);
  border-radius:18px;padding:16px 20px;
  box-shadow:var(--shadow-dark);
  backdrop-filter:blur(10px);
  display:flex;align-items:center;gap:14px;
}
.float-card strong{display:block;color:#fff;font-size:20px;line-height:1.2;}
.float-card span{font-size:13px;color:var(--dark-sub);}
.float-icon{
  width:42px;height:42px;border-radius:12px;
  background:rgba(0,224,168,.14);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.hero-curve{
  position:relative;z-index:2;
  height:60px;background:var(--light);
  border-radius:50% 50% 0 0 / 100% 100% 0 0;
  margin-top:-60px;
}

/* ============ 指标条 ============ */
.metrics{padding:60px 0 20px;}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.metric{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:24px 24px 22px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.35);box-shadow:var(--shadow-card-hover);}
.metric b{
  display:block;font-size:34px;font-weight:800;color:var(--brand);
  line-height:1.1;margin-bottom:6px;
}
.metric b i{font-style:normal;font-size:18px;margin-left:2px;color:var(--brand-deep);}
.metric span{font-size:14px;color:var(--text-sub);}

/* ============ 区块标题 ============ */
.sec-head{max-width:720px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.bg-dark .eyebrow{color:var(--accent);}
.sec-head h2{font-size:32px;margin-bottom:16px;letter-spacing:-.3px;}
.sec-head p{color:var(--text-sub);font-size:16px;line-height:1.85;}
.bg-dark .sec-head p{color:var(--dark-sub);}

/* ============ 功能分组 错落网格 ============ */
.feature-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:26px;
}
.feature-card{
  position:relative;
  background:#fff;border:1px solid var(--line-light);
  border-radius:var(--radius-card);padding:34px 32px 30px;
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.feature-card:nth-child(odd){transform:translateY(0);}
.feature-card:nth-child(even){margin-top:28px;}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:var(--shadow-card-hover);}
.feature-card:nth-child(even):hover{transform:translateY(24px);}
.feature-no{
  position:absolute;top:20px;right:24px;
  font-size:13px;font-weight:800;letter-spacing:.06em;
  color:var(--brand);background:rgba(109,40,255,.09);
  padding:5px 12px;border-radius:999px;
}
.feature-icon{
  width:54px;height:54px;border-radius:16px;
  background:linear-gradient(135deg,rgba(109,40,255,.14),rgba(0,224,168,.16));
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:22px;
}
.feature-card h3{font-size:21px;margin-bottom:12px;}
.feature-card p{color:var(--text-sub);font-size:15.5px;line-height:1.85;margin-bottom:18px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  padding-bottom:2px;border-bottom:2px solid transparent;
  transition:border-color .2s ease,color .2s ease;
}
.link-arrow:hover{border-color:var(--brand);}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 使用场景 ============ */
.scene-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:stretch;}
.scene-main{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  min-height:420px;box-shadow:var(--shadow-card);
  border:1px solid var(--line-light);
}
.scene-main img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.scene-main:hover img{transform:scale(1.03);}
.scene-main .mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,9,23,.10),rgba(13,9,23,.86));
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:34px;color:#fff;
}
.scene-main .mask h3{color:#fff;font-size:24px;margin-bottom:10px;}
.scene-main .mask p{color:#CFC7E8;font-size:15px;line-height:1.8;max-width:520px;}
.scene-list{display:flex;flex-direction:column;justify-content:space-between;gap:0;}
.scene-item{
  padding:26px 4px;border-bottom:1px dashed var(--line-light);
  display:flex;gap:18px;align-items:flex-start;
  transition:transform .2s ease;
}
.scene-item:last-child{border-bottom:none;}
.scene-item:hover{transform:translateX(4px);}
.scene-item .ico{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;
  background:rgba(0,224,168,.12);color:#0B8C6C;
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.scene-item h3{font-size:18px;margin-bottom:6px;}
.scene-item p{color:var(--text-sub);font-size:14.5px;line-height:1.8;}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:26px;}
.case-main{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:38px;box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;justify-content:space-between;gap:26px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.case-main:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:var(--shadow-card-hover);}
.case-quote{font-size:20px;line-height:1.8;font-weight:600;color:var(--text);}
.case-stats{display:flex;gap:38px;flex-wrap:wrap;}
.case-stats b{display:block;font-size:30px;color:var(--brand);font-weight:800;line-height:1.15;}
.case-stats span{font-size:13.5px;color:var(--text-sub);}
.case-author{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--text-sub);}
.case-author .av{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.case-side{display:flex;flex-direction:column;gap:22px;}
.case-mini{
  flex:1;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.case-mini:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:var(--shadow-card-hover);}
.case-mini h3{font-size:17px;margin-bottom:10px;}
.case-mini p{color:var(--text-sub);font-size:14.5px;line-height:1.8;margin-bottom:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:999px;
  background:rgba(109,40,255,.09);color:var(--brand-deep);
}
.tag-green{background:rgba(0,224,168,.14);color:#0B8C6C;}
.tag-amber{background:rgba(255,197,61,.20);color:#8A5B00;}

/* ============ 最新信息 ============ */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;flex-wrap:wrap;
}
.news-head .sec-head{margin-bottom:0;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:var(--shadow-card-hover);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--light);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{
  font-size:17.5px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  color:var(--text-sub);font-size:14.5px;line-height:1.8;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line-light);
  font-size:13px;color:var(--text-sub);
}
.news-meta .arrow{color:var(--brand);font-weight:700;transition:transform .2s ease;}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.empty-state{
  background:#fff;border:1px dashed var(--line-light);border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-card);
}
.empty-state .emoji{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;
  background:rgba(109,40,255,.08);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.empty-state p{color:var(--text-sub);margin-bottom:20px;}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line-light);
  border-radius:var(--radius-card);padding:34px 30px 32px;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(109,40,255,.3);}
.price-card.featured{
  border:2px solid var(--brand);
  box-shadow:0 26px 54px -26px rgba(109,40,255,.55);
  transform:translateY(-8px);
}
.price-card.featured:hover{transform:translateY(-12px);}
.price-badge{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--highlight);color:#4A3200;
  font-size:12.5px;font-weight:800;padding:6px 16px;border-radius:999px;
  letter-spacing:.04em;white-space:nowrap;
}
.price-card h3{font-size:19px;margin-bottom:8px;}
.price-card .desc{font-size:14px;color:var(--text-sub);margin-bottom:22px;min-height:44px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.price-amount b{font-size:40px;font-weight:800;color:var(--brand);line-height:1;}
.price-amount em{font-style:normal;font-size:14px;color:var(--text-sub);}
.price-note{font-size:13px;color:var(--text-sub);margin-bottom:24px;}
.price-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-sub);line-height:1.7;}
.price-list i{color:var(--accent);font-size:13px;margin-top:6px;flex:0 0 auto;}
.price-card .btn{width:100%;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line-light);border-radius:14px;
  margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(109,40,255,.3);}
.faq-item.is-open{border-color:rgba(109,40,255,.45);box-shadow:0 16px 34px -22px rgba(40,16,90,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-q .pm{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:rgba(109,40,255,.09);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;transition:transform .28s ease,background .22s ease;
}
.faq-item.is-open .faq-q .pm{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease,padding .3s ease;
  padding:0 24px;
}
.faq-item.is-open .faq-a{padding:0 24px 22px;max-height:420px;}
.faq-a p{color:var(--text-sub);font-size:15px;line-height:1.85;}

/* ============ 结尾 CTA ============ */
.cta-banner{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
  box-shadow:0 34px 70px -34px rgba(74,18,199,.75);
}
.cta-banner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(0,224,168,.35),transparent 66%);
}
.cta-banner h2{color:#fff;font-size:30px;margin-bottom:10px;position:relative;z-index:1;}
.cta-banner p{color:#DED6FF;font-size:15.5px;max-width:620px;position:relative;z-index:1;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(0,0,0,.5);}
.btn-light:active{transform:translateY(0);filter:brightness(.95);}
.btn-line{border:1.5px solid rgba(255,255,255,.6);color:#fff;border-radius:12px;}
.btn-line:hover{background:rgba(255,255,255,.16);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:var(--dark-sub);
  border-top:1px solid rgba(109,40,255,.18);
  padding-top:72px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:340px;margin-bottom:20px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-contact a{display:inline-flex;align-items:center;gap:8px;color:var(--accent);transition:color .2s;}
.footer-contact a:hover{color:#fff;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14.5px;color:var(--dark-sub);transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:var(--accent);padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;flex-wrap:wrap;
}
.footer-bottom .meta{display:flex;gap:18px;flex-wrap:wrap;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .section{padding:76px 0;}
  .nav-links{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:64px 0 84px;}
  .hero h1{font-size:40px;}
  .hero-visual .frame{max-width:560px;}
  .float-card{left:12px;bottom:-20px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card:nth-child(even){margin-top:0;}
  .feature-card:nth-child(even):hover{transform:translateY(-4px);}
  .scene-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  body{font-size:15.5px;}
  .topbar{font-size:12.5px;}
  .brand-text{font-size:16px;}
  .hero h1{font-size:31px;line-height:1.28;}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .hero-trust{gap:14px;}
  .hero-trust li{font-size:13.5px;}
  .hero-inner{padding:52px 0 76px;}
  .float-card{position:static;margin-top:16px;}
  .sec-head h2{font-size:25px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .metric{padding:20px 18px;}
  .metric b{font-size:26px;}
  .feature-card{padding:28px 22px 24px;}
  .scene-main{min-height:320px;}
  .scene-main .mask{padding:24px;}
  .case-main{padding:26px 22px;}
  .case-quote{font-size:17.5px;}
  .case-stats{gap:24px;}
  .case-stats b{font-size:24px;}
  .news-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-item.is-open .faq-a{padding:0 18px 18px;}
  .cta-banner{padding:32px 22px;border-radius:20px;}
  .cta-banner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

/* roulang page: article */
:root{
  --brand:#6D28FF;
  --brand-deep:#4A12C7;
  --accent:#00E0A8;
  --highlight:#FFC53D;
  --hot:#FF3D6E;
  --ink:#0D0917;
  --ink-card:#171126;
  --light:#F6F4FF;
  --white:#FFFFFF;
  --t-dark:#151022;
  --t-muted:#5B5470;
  --t-light:#EDE9FF;
  --t-light-muted:#A79FC7;
  --line:#E5E0F5;
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 10px 30px -16px rgba(40,16,90,.28);
  --shadow-deep:0 22px 44px -22px rgba(40,16,90,.45);
  --shadow-dark:0 12px 40px -20px rgba(0,0,0,.6);
}
*,*::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",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--white);
  color:var(--t-dark);
  font-size:16px;
  line-height:1.8;
  -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;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ============ 顶部通告条 ============ */
.topbar{background:var(--ink-card);color:#CFC8E8;font-size:13.5px;border-bottom:1px solid rgba(109,40,255,.16)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px}
.topbar-inner span{display:inline-flex;align-items:center;gap:8px;line-height:1.5;padding:6px 0}
.topbar-inner i{color:var(--accent)}
.topbar-close{background:none;border:0;color:#8C83AE;font-size:18px;line-height:1;cursor:pointer;padding:4px 10px;border-radius:8px;transition:color .2s,background .2s}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.08)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(13,9,23,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(109,40,255,.18);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 14px 34px -20px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-light);font-weight:800;font-size:19px;letter-spacing:.2px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;box-shadow:0 6px 18px -8px rgba(109,40,255,.9)}
.brand-text em{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{position:relative;padding:8px 14px;border-radius:999px;color:#C6BEE4;font-size:15px;font-weight:500;transition:color .2s,background .2s}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-links a:hover{color:#fff;background:rgba(109,40,255,.16)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::before{content:"";position:absolute;left:2px;top:50%;width:6px;height:6px;margin-top:-3px;border-radius:50%;background:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.drawer-cta{display:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(167,159,199,.35);background:transparent;color:var(--t-light);font-size:17px;cursor:pointer;transition:background .2s,border-color .2s}
.nav-toggle:hover{background:rgba(109,40,255,.18);border-color:var(--brand)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;font-size:15px;font-weight:600;border-radius:999px;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s ease,background .2s ease,box-shadow .22s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:0 10px 24px -12px rgba(109,40,255,.95)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 16px 30px -12px rgba(109,40,255,1)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:transparent;color:#DCD6F5;border-color:rgba(167,159,199,.45);border-radius:12px}
.btn-ghost:hover{background:rgba(109,40,255,.16);border-color:var(--brand);color:#fff}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(0,224,168,.9)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(0,0,0,.55)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:46px 0 48px;
  color:var(--t-light);
  background-color:#120C22;
  background-image:linear-gradient(180deg,rgba(13,9,23,.88),rgba(13,9,23,.95)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 10% 0%,rgba(109,40,255,.38),transparent 70%),
             radial-gradient(520px 280px at 92% 22%,rgba(0,224,168,.16),transparent 72%);
}
.article-hero .wrap{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t-light-muted);margin-bottom:20px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(167,159,199,.55)}
.breadcrumb .current{color:var(--t-light);max-width:min(560px,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;background:rgba(109,40,255,.24);border:1px solid rgba(140,90,255,.5);color:#D9CFFF;font-size:13px;font-weight:600;letter-spacing:.2px}
.article-hero h1{font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.26;margin:16px 0 20px;max-width:940px;letter-spacing:.2px}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:14px;color:var(--t-light-muted)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent);font-size:13px}

/* ============ 文章主体布局 ============ */
.article-section{padding:56px 0 76px;background:var(--white)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-cover{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:34px;background:var(--light)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .55s ease}
.article-cover:hover img{transform:scale(1.02)}

.article-body{font-size:16.5px;line-height:1.85;color:#2C2543;overflow-wrap:anywhere}
.article-body > *:first-child{margin-top:0}
.article-body h2{font-size:26px;font-weight:700;color:var(--t-dark);line-height:1.4;margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body h3{font-size:20px;font-weight:600;color:var(--t-dark);line-height:1.5;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--t-dark);margin:24px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin:8px 0}
.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 24px;background:var(--light);border-left:4px solid var(--accent);border-radius:0 14px 14px 0;color:var(--t-muted)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;transition:color .2s}
.article-body a:hover{color:var(--brand-deep)}
.article-body img{border-radius:16px;margin:26px auto;box-shadow:var(--shadow)}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .caption{display:block;text-align:center;font-size:13.5px;color:var(--t-muted);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;font-variant-numeric:tabular-nums}
.article-body th{background:var(--light);color:var(--t-dark);font-weight:600;text-align:left}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;vertical-align:top}
.article-body tbody tr:hover{background:#FBFAFF}
.article-body code{background:#F1EDFF;color:var(--brand-deep);padding:2px 6px;border-radius:6px;font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body pre{background:var(--ink-card);color:var(--t-light);padding:18px 20px;border-radius:14px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0}

.article-empty{padding:52px 24px;text-align:center;background:var(--light);border:1px dashed var(--line);border-radius:var(--radius)}
.article-empty i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block}
.article-empty p{font-size:17px;font-weight:600;color:var(--t-dark);margin-bottom:18px}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:38px;padding-top:24px;border-top:1px dashed var(--line)}
.article-tags .label{font-size:14px;color:var(--t-muted);margin-right:2px}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:var(--light);border:1px solid #EAE4FF;color:var(--brand-deep);font-size:13.5px;transition:background .2s,color .2s,transform .2s}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.post-nav-item{border:1px solid var(--line);border-radius:16px;padding:18px 20px;background:#fff;transition:transform .22s,border-color .22s,box-shadow .22s}
.post-nav-item:hover{transform:translateY(-3px);border-color:rgba(109,40,255,.45);box-shadow:var(--shadow)}
.post-nav-label{display:block;font-size:13px;color:var(--t-muted);margin-bottom:6px}
.post-nav-title{font-size:15.5px;font-weight:600;color:var(--t-dark);line-height:1.55}
.post-nav-item.is-next{text-align:right}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;box-shadow:var(--shadow)}
.side-card h3{font-size:16px;font-weight:700;color:var(--t-dark);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand);font-size:14px}
.side-links{display:grid;gap:4px}
.side-links a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;font-size:14.5px;color:var(--t-muted);transition:background .2s,color .2s}
.side-links a:hover{background:var(--light);color:var(--brand)}
.side-links i{color:var(--brand);font-size:13px;width:16px;text-align:center}
.side-card.is-dark{background:var(--ink-card);border-color:rgba(109,40,255,.34);color:var(--t-light);box-shadow:var(--shadow-dark)}
.side-card.is-dark h3{color:var(--t-light)}
.side-card.is-dark h3 i{color:var(--accent)}
.side-card.is-dark p{font-size:14px;color:var(--t-light-muted);margin-bottom:16px}
.side-card.is-dark .btn{width:100%}

/* ============ 相关推荐 & CTA ============ */
.related{padding:76px 0;background:var(--light)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--t-dark)}
.section-head p{font-size:15px;color:var(--t-muted);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:var(--shadow-deep)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--light)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card h3{font-size:18px;font-weight:700;color:var(--t-dark);line-height:1.45}
.card p{font-size:14.5px;color:var(--t-muted);line-height:1.7}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--t-muted)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);border-bottom:2px solid transparent;transition:border-color .2s,color .2s}
.link-more:hover{border-color:var(--brand)}
.card-link{position:absolute;inset:0;z-index:3}
.card{position:relative}

.cta-band{padding:0 0 84px;background:var(--light)}
.cta-band.plain{background:#fff;padding-top:0}
.cta-inner{border-radius:24px;padding:48px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:0 26px 54px -26px rgba(74,18,199,.85)}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;margin-bottom:10px;color:#fff}
.cta-inner p{font-size:15.5px;color:rgba(255,255,255,.88);max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--t-light-muted);border-top:1px solid rgba(109,40,255,.25);padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{line-height:1.85;max-width:380px;color:#9A92BC}
.footer-contact{display:grid;gap:10px;margin-top:18px}
.footer-contact a{display:inline-flex;align-items:center;gap:9px;color:#CFC8E8;font-size:14px;transition:color .2s}
.footer-contact a:hover{color:var(--accent)}
.footer-contact i{color:var(--accent);font-size:13px}
.footer-col h4{font-size:15px;color:var(--t-light);font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:var(--t-light-muted);font-size:14.5px;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{margin-top:46px;padding-top:22px;border-top:1px solid rgba(109,40,255,.2);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8A82AC}
.footer-bottom .meta{display:flex;flex-wrap:wrap;gap:20px}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links a{padding:8px 11px;font-size:14.5px}
}
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:290px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:96px 24px 32px;margin:0;
    background:#120C22;border-left:1px solid rgba(109,40,255,.28);
    transform:translateX(105%);transition:transform .28s ease;z-index:70;overflow-y:auto;
    box-shadow:-20px 0 50px -24px rgba(0,0,0,.9);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{width:100%;padding:12px 14px;font-size:16px;border-radius:12px}
  .nav-links a::after{display:none}
  .nav-links a.is-active{background:rgba(109,40,255,.2)}
  .drawer-cta{display:grid;gap:10px;margin-top:auto;padding-top:22px;border-top:1px solid rgba(109,40,255,.22)}
  .drawer-cta .btn{width:100%}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px}
  .article-side{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:820px){
  .nav-cta .btn-ghost{display:none}
}
@media (max-width:767px){
  .article-hero{padding:34px 0 38px}
  .article-section{padding:40px 0 56px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:18.5px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.is-next{text-align:left}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .related{padding:56px 0}
  .cta-band{padding-bottom:60px}
  .breadcrumb .current{white-space:normal}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .header-inner{height:64px}
  .brand{font-size:17px}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:12px}
  .nav-cta .btn{padding:0 16px;height:40px;font-size:14px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .article-hero h1{font-size:26px}
  .cta-inner{padding:28px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#6D28FF;
  --brand-deep:#4A12C7;
  --brand-soft:rgba(109,40,255,.08);
  --accent:#00E0A8;
  --highlight:#FFC53D;
  --hot:#FF3D6E;
  --ink:#0D0917;
  --ink-card:#171126;
  --light:#F6F4FF;
  --white:#FFFFFF;
  --text:#151022;
  --text-2:#5B5470;
  --dtext:#EDE9FF;
  --dtext-2:#A79FC7;
  --line:#E5E0F5;
  --line-dark:rgba(109,40,255,.16);
  --r-card:20px;
  --r-img:16px;
  --r-btn:999px;
  --shadow:0 10px 30px -16px rgba(40,16,90,.28);
  --shadow-hover:0 22px 44px -22px rgba(40,16,90,.42);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
.page{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--white);
  overflow-x:hidden;
}
.page img{display:block;max-width:100%;}
.page a{color:inherit;text-decoration:none;}
.page button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
.page ul{list-style:none;margin:0;padding:0;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* 顶部通告条 */
.notice-bar{background:var(--ink);border-bottom:1px solid rgba(255,255,255,.07);}
.notice-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;}
.notice-text{font-size:13px;color:#CBC2E8;}
.notice-text i{color:var(--accent);margin-right:7px;}
.notice-close{width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:var(--dtext-2);transition:background-color .2s,color .2s;}
.notice-close:hover{color:#fff;background:rgba(255,255,255,.09);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,9,23,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -20px rgba(0,0,0,.9);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:15px;font-weight:800;letter-spacing:.5px;color:#fff;
  background:linear-gradient(135deg,#7C3BFF,var(--accent));
  box-shadow:0 10px 22px -12px rgba(109,40,255,.9);
}
.brand-text{font-size:19px;font-weight:800;color:#fff;letter-spacing:.4px;}
.brand-text em{font-style:normal;color:var(--accent);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;font-size:15px;color:#CBC2E8;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(109,40,255,.2);}
.nav-links a.is-active{color:#fff;font-weight:600;background:rgba(109,40,255,.16);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:6px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.nav-links a.is-active{padding-left:20px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-actions .btn{height:44px;padding:0 22px;font-size:15px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;font-size:17px;color:#fff;
  border:1px solid rgba(160,132,255,.35);align-items:center;justify-content:center;
  transition:background-color .2s,border-color .2s;
}
.nav-toggle:hover{background:rgba(109,40,255,.2);border-color:var(--brand);}
.drawer{display:none;border-top:1px solid var(--line-dark);background:rgba(13,9,23,.98);padding-bottom:22px;}
.drawer.open{display:block;}
.drawer-links{display:flex;flex-direction:column;padding:8px 32px 14px;}
.drawer-links a{padding:14px 0;font-size:16px;color:#CBC2E8;border-bottom:1px solid rgba(255,255,255,.07);}
.drawer-links a.is-active{color:#fff;font-weight:600;}
.drawer .btn-block{margin:12px 32px 0;width:calc(100% - 64px);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{color:#fff;background:linear-gradient(135deg,#7C3BFF,var(--brand-deep));box-shadow:0 12px 26px -14px rgba(109,40,255,.9);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 34px -14px rgba(109,40,255,.95);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-ghost{color:#fff;border:1px solid rgba(160,132,255,.45);background:transparent;}
.btn-ghost:hover{background:rgba(109,40,255,.18);border-color:var(--brand);}
.btn-outline{color:#fff;border:1.5px solid rgba(255,255,255,.42);background:transparent;}
.btn-outline:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 14px 30px -18px rgba(0,0,0,.55);}
.btn-light:hover{transform:translateY(-2px);background:#F3EEFF;}
.btn-line{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-line:hover{background:rgba(255,255,255,.15);transform:translateY(-2px);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-block{width:100%;}
.btn i{font-size:14px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;padding:56px 0 62px;
  background:var(--ink) url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(13,9,23,.95),rgba(13,9,23,.84) 52%,rgba(74,18,199,.6));
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-180px;width:540px;height:540px;
  background:radial-gradient(circle,rgba(109,40,255,.4),transparent 65%);
}
.hero-inner{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dtext-2);margin-bottom:18px;}
.crumbs a{transition:color .2s;}
.crumbs a:hover{color:var(--accent);}
.crumbs .current{color:var(--dtext);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:#E6DEFF;
  background:rgba(109,40,255,.26);border:1px solid rgba(160,132,255,.35);
}
.hero-badge i{color:var(--accent);}
.hero-title{margin:18px 0 14px;font-size:40px;line-height:1.22;font-weight:800;color:#fff;letter-spacing:-.4px;max-width:900px;}
.hero-title .hl{background:linear-gradient(120deg,var(--accent),#8FD8FF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin:0;max-width:780px;font-size:16.5px;line-height:1.85;color:#BDB4DD;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* 指标条 */
.stat-section{margin-top:-36px;position:relative;z-index:3;padding-bottom:8px;}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:0 18px 44px -26px rgba(40,16,90,.5);
}
.stat-item{background:#fff;padding:24px 26px;}
.stat-num{font-size:30px;font-weight:800;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums;}
.stat-num span{font-size:16px;color:var(--text-2);font-weight:600;margin-left:2px;}
.stat-label{margin-top:4px;font-size:13.5px;color:var(--text-2);}

/* 板块 */
.section{padding:88px 0;}
.section-alt{background:var(--light);}
.section-head{max-width:740px;margin-bottom:32px;}
.section-title{margin:0 0 12px;font-size:32px;font-weight:700;line-height:1.3;color:var(--text);}
.section-sub{margin:0;font-size:16px;line-height:1.85;color:var(--text-2);}
.section-tip{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:14px;color:var(--text-2);}
.section-tip i{color:var(--brand);}

/* 筛选 chips */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text-2);
  background:#fff;border:1px solid var(--line);
  transition:color .2s,border-color .2s,background-color .2s,box-shadow .2s,transform .2s;
}
.chip:hover{color:var(--brand);border-color:rgba(109,40,255,.5);transform:translateY(-1px);}
.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.chip.is-active{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,#7C3BFF,var(--brand-deep));
  box-shadow:0 12px 24px -16px rgba(109,40,255,.95);
}

/* 功能卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.f-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.f-card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.3);box-shadow:var(--shadow-hover);}
.f-card:focus-within{border-color:rgba(109,40,255,.45);}
.f-card-media{aspect-ratio:16/9;overflow:hidden;background:var(--light);}
.f-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.f-card:hover .f-card-media img{transform:scale(1.03);}
.f-card-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.f-card-title{margin:0 0 10px;font-size:20px;font-weight:600;line-height:1.42;color:var(--text);}
.f-card-desc{margin:0 0 16px;font-size:14.5px;line-height:1.8;color:var(--text-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.tag{
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border:1px solid rgba(109,40,255,.18);
}
.tag-alt{color:#05795F;background:rgba(0,224,168,.13);border-color:rgba(0,224,168,.32);}
.f-card-foot{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);}
.card-link{position:relative;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand);padding-bottom:2px;}
.card-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.card-link:hover::after{transform:scaleX(1);}
.card-link i{font-size:12px;transition:transform .22s ease;}
.card-link:hover i{transform:translateX(3px);}

/* 对比说明条 */
.compare{position:relative;overflow:hidden;padding:88px 0;background:var(--ink);color:var(--dtext);}
.compare::before{
  content:"";position:absolute;left:-160px;bottom:-200px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(0,224,168,.16),transparent 65%);
}
.compare::after{
  content:"";position:absolute;right:-120px;top:-160px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(109,40,255,.3),transparent 65%);
}
.compare-inner{position:relative;z-index:2;}
.compare .section-title{color:#fff;}
.compare .section-sub{color:var(--dtext-2);}
.compare-head{margin-bottom:30px;max-width:760px;}
.table-wrap{
  border-radius:var(--r-card);overflow-x:auto;border:1px solid rgba(109,40,255,.3);
  background:rgba(23,17,38,.9);box-shadow:0 12px 40px -20px rgba(0,0,0,.6);
}
.data-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px;}
.data-table th,.data-table td{padding:16px 22px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);}
.data-table thead th{
  background:rgba(109,40,255,.2);color:#fff;font-size:14px;font-weight:600;letter-spacing:.3px;
}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr{transition:background-color .2s;}
.data-table tbody tr:hover{background:rgba(109,40,255,.12);}
.data-table td{color:var(--dtext-2);}
.data-table td:first-child{color:#fff;font-weight:600;white-space:nowrap;}
.data-table td strong{color:var(--accent);font-weight:600;}
.compare-note{margin-top:22px;font-size:14px;color:var(--dtext-2);display:flex;gap:10px;align-items:flex-start;}
.compare-note i{color:var(--accent);margin-top:5px;}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(109,40,255,.28);}
.faq-item.is-open{border-color:rgba(109,40,255,.38);box-shadow:0 18px 38px -26px rgba(40,16,90,.5);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;
}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .25s ease;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-item.is-open .faq-a{display:block;}

/* CTA */
.cta-band{padding:0 0 96px;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(135deg,#7C3BFF,var(--brand-deep));
  box-shadow:0 26px 60px -34px rgba(74,18,199,.9);
}
.cta-inner::after{
  content:"";position:absolute;right:-80px;top:-90px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(0,224,168,.42),transparent 65%);
}
.cta-copy{position:relative;z-index:2;max-width:660px;}
.cta-title{margin:0 0 12px;font-size:30px;font-weight:800;line-height:1.3;color:#fff;}
.cta-text{margin:0;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.84);}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--dtext-2);border-top:1px solid rgba(109,40,255,.3);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{margin:0 0 18px;font-size:14.5px;line-height:1.85;max-width:430px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact a{font-size:14px;color:var(--dtext);transition:color .2s;}
.footer-contact a i{color:var(--accent);margin-right:8px;}
.footer-contact a:hover{color:var(--accent);}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:700;color:#fff;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14.5px;color:var(--dtext-2);transition:color .2s;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom .meta{display:flex;gap:18px;flex-wrap:wrap;}

/* 响应式 */
@media (max-width:1280px){
  .wrap{padding:0 28px;}
}
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-title{font-size:34px;}
  .hero-sub{font-size:15.5px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section{padding:72px 0;}
  .compare{padding:72px 0;}
}
@media (max-width:768px){
  .drawer-links{padding:8px 24px 12px;}
  .drawer .btn-block{margin:12px 24px 0;width:calc(100% - 48px);}
  .hero{padding:46px 0 54px;}
  .hero-title{font-size:30px;letter-spacing:0;}
  .section-title{font-size:25px;}
  .cta-band{padding-bottom:72px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px;}
  .cta-title{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .card-grid{grid-template-columns:1fr;}
  .stat-item{padding:18px 16px;}
  .stat-num{font-size:23px;}
  .stat-label{font-size:13px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .btn-lg{height:50px;font-size:15px;}
  .section{padding:58px 0;}
  .compare{padding:58px 0;}
  .f-card-body{padding:20px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
    --brand:#6D28FF;
    --brand-deep:#4A12C7;
    --accent:#00E0A8;
    --highlight:#FFC53D;
    --hot:#FF3D6E;
    --ink:#0D0917;
    --ink-card:#171126;
    --light:#F6F4FF;
    --line:#E5E0F5;
    --text:#151022;
    --text-2:#5B5470;
    --dark-text:#EDE9FF;
    --dark-text-2:#A79FC7;
    --radius:20px;
    --radius-sm:14px;
    --shadow:0 10px 30px -16px rgba(40,16,90,.28);
    --shadow-dark:0 12px 40px -20px rgba(0,0,0,.6);
    --container:1240px;
    --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background:#fff;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
  h1{font-size:48px;font-weight:800;letter-spacing:-.5px}
  h2{font-size:32px;font-weight:700}
  h3{font-size:20px;font-weight:600}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block;height:auto}
  button{font-family:inherit}
  :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
  .wrap{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}

  /* ---------- 顶部通告条 ---------- */
  .notice{background:var(--ink);color:var(--dark-text-2);font-size:13px}
  .notice .wrap{display:flex;align-items:center;justify-content:center;gap:10px;height:38px}
  .notice i{color:var(--accent)}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(13,9,23,.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(109,40,255,.18);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 12px 34px -18px rgba(0,0,0,.85)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
  .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;letter-spacing:.2px}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand),var(--accent));
    color:#0B0714;font-size:14px;font-weight:900;letter-spacing:.5px;
  }
  .brand-text em{font-style:normal;color:var(--accent)}
  .nav-links{display:flex;align-items:center;gap:4px}
  .nav-links a{
    position:relative;color:var(--dark-text-2);font-size:15px;font-weight:500;
    padding:10px 16px;border-radius:10px;transition:color .2s,background .2s;
  }
  .nav-links a:hover{color:#fff;background:rgba(109,40,255,.16)}
  .nav-links a.is-active{color:#fff}
  .nav-links a.is-active::before{
    content:"";position:absolute;left:5px;top:50%;transform:translateY(-50%);
    width:6px;height:6px;border-radius:50%;background:var(--accent);
  }
  .nav-cta{display:flex;align-items:center;gap:12px}
  .nav-toggle{
    display:none;background:rgba(109,40,255,.16);border:1px solid rgba(109,40,255,.4);
    color:#fff;width:44px;height:44px;border-radius:12px;font-size:18px;cursor:pointer;
  }
  .nav-drawer{
    display:none;flex-direction:column;gap:6px;
    background:var(--ink-card);border-top:1px solid rgba(109,40,255,.22);
    padding:16px 20px 24px;
  }
  .nav-drawer.is-open{display:flex}
  .nav-drawer a{
    color:var(--dark-text);padding:13px 14px;border-radius:12px;font-size:15px;
    transition:background .2s,color .2s;
  }
  .nav-drawer a:hover{background:rgba(109,40,255,.16);color:#fff}
  .nav-drawer a.is-active{color:var(--accent);background:rgba(0,224,168,.08)}
  .nav-drawer .drawer-cta{margin-top:10px;width:100%}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;border-radius:999px;padding:14px 28px;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
  }
  .btn i{font-size:14px}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 14px 30px -16px rgba(109,40,255,.9)}
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 38px -16px rgba(109,40,255,.95)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.94)}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(109,40,255,.55)}
  .btn-ghost:hover{background:rgba(109,40,255,.14);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0);background:rgba(109,40,255,.22)}
  .btn-outline{background:#fff;color:var(--brand);border-color:rgba(109,40,255,.32);border-radius:12px}
  .btn-outline:hover{background:rgba(109,40,255,.08);transform:translateY(-2px)}
  .btn-outline:active{transform:translateY(0)}
  .btn-sm{padding:11px 22px;font-size:14px}

  /* ---------- Hero ---------- */
  .page-hero{position:relative;background:var(--ink);overflow:hidden;isolation:isolate}
  .page-hero::before{
    content:"";position:absolute;inset:0;z-index:-2;
    background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity:.32;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;z-index:-1;
    background:
      radial-gradient(circle at 14% 18%,rgba(109,40,255,.42),transparent 52%),
      radial-gradient(circle at 86% 78%,rgba(0,224,168,.20),transparent 48%),
      linear-gradient(180deg,rgba(13,9,23,.72),rgba(13,9,23,.94));
  }
  .hero-inner{padding:60px 0 68px;max-width:840px}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dark-text-2);margin-bottom:22px}
  .crumb a{color:var(--dark-text-2);transition:color .2s}
  .crumb a:hover{color:var(--accent)}
  .crumb span.dot{opacity:.5}
  .pill{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
    background:rgba(109,40,255,.18);border:1px solid rgba(109,40,255,.45);color:#D9CBFF;
  }
  .pill i{color:var(--accent)}
  .page-hero h1{color:#fff;margin:20px 0 18px;font-size:46px}
  .page-hero h1 mark{
    background:linear-gradient(120deg,var(--brand),var(--accent));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{color:var(--dark-text-2);font-size:17px;max-width:660px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
  .hero-chips span{
    font-size:13px;color:var(--dark-text-2);
    border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:6px 14px;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0}
  .section-light{background:var(--light)}
  .section-white{background:#fff}
  .section-dark{background:var(--ink);color:var(--dark-text);position:relative;overflow:hidden}
  .section-dark::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(circle at 82% 12%,rgba(109,40,255,.22),transparent 45%),
      radial-gradient(circle at 8% 88%,rgba(0,224,168,.14),transparent 42%);
    pointer-events:none;
  }
  .section-dark .wrap{position:relative;z-index:1}
  .sec-head{max-width:760px;margin-bottom:52px}
  .sec-eyebrow{
    display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
    color:var(--brand);text-transform:uppercase;margin-bottom:14px;
  }
  .section-dark .sec-eyebrow{color:var(--accent)}
  .sec-head h2{margin-bottom:16px}
  .sec-head p{color:var(--text-2);font-size:16px}
  .section-dark .sec-head p{color:var(--dark-text-2)}
  .sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

  /* ---------- 时间轴 ---------- */
  .timeline{position:relative;padding-left:88px;max-width:1080px;margin:0 auto}
  .timeline::before{
    content:"";position:absolute;left:23px;top:18px;bottom:18px;width:2px;
    background:linear-gradient(180deg,rgba(109,40,255,.55),rgba(0,224,168,.45),rgba(109,40,255,0));
  }
  .tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:48px}
  .tl-item:last-child{margin-bottom:0}
  .tl-dot{
    position:absolute;left:-88px;top:14px;width:48px;height:48px;border-radius:50%;
    display:grid;place-items:center;font-size:14px;font-weight:800;
    color:var(--ink);background:linear-gradient(135deg,var(--accent),#7CF0D2);
    box-shadow:0 0 0 7px #fff,0 10px 24px -12px rgba(0,224,168,.9);
    font-variant-numeric:tabular-nums;
  }
  .tl-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:28px 28px 26px;box-shadow:var(--shadow);
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .tl-card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.32);box-shadow:0 18px 40px -20px rgba(40,16,90,.45)}
  .tl-card h3{margin-bottom:12px}
  .tl-card p{color:var(--text-2);font-size:15px}
  .tl-points{margin-top:16px;display:grid;gap:8px}
  .tl-points li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2)}
  .tl-points li::before{
    content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
    background:rgba(109,40,255,.28);
  }
  .tl-media{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#fff}
  .tl-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
  .tl-media:hover img{transform:scale(1.03)}
  .tl-item:nth-child(even) .tl-card{order:2}
  .tl-item:nth-child(even) .tl-media{order:1}

  /* ---------- 术语速查 ---------- */
  .term-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .term-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 22px;box-shadow:var(--shadow);
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .term-card:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.3);box-shadow:0 18px 40px -20px rgba(40,16,90,.42)}
  .term-card .term-icon{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    background:rgba(0,224,168,.14);color:#0E9E7B;font-size:17px;margin-bottom:16px;
  }
  .term-card h3{font-size:18px;margin-bottom:8px}
  .term-card p{font-size:14px;color:var(--text-2);line-height:1.75}

  /* ---------- 节奏对照 ---------- */
  .pace-table{
    border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
    background:rgba(23,17,38,.72);overflow:hidden;
  }
  .pace-row{
    display:grid;grid-template-columns:180px 1fr 150px 120px;
    gap:20px;align-items:center;padding:24px 28px;
    border-bottom:1px solid rgba(255,255,255,.09);
    transition:background .25s ease;
  }
  .pace-row:last-child{border-bottom:none}
  .pace-row:hover{background:rgba(109,40,255,.12)}
  .pace-row.head{
    background:rgba(109,40,255,.16);font-size:13px;font-weight:700;
    letter-spacing:1px;color:#CFC4EE;
  }
  .pace-name{display:flex;align-items:center;gap:12px;font-weight:700;color:#fff;font-size:16px}
  .pace-name i{color:var(--accent)}
  .pace-desc{font-size:14px;color:var(--dark-text-2)}
  .pace-time{font-size:14px;color:var(--highlight);font-variant-numeric:tabular-nums;font-weight:600}
  .tag{
    display:inline-flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
    background:rgba(0,224,168,.15);color:#6FF0CB;justify-self:start;
  }
  .tag-warm{background:rgba(255,197,61,.16);color:#FFD873}
  .tag-hot{background:rgba(255,61,110,.16);color:#FF89A5}

  /* ---------- 误区提示 ---------- */
  .tip-list{display:grid;gap:18px;max-width:900px}
  .tip{
    display:flex;gap:18px;padding:24px 26px;background:#fff;
    border:1px solid var(--line);border-left:4px solid var(--brand);
    border-radius:var(--radius-sm);box-shadow:var(--shadow);
    transition:transform .25s ease,border-color .25s ease;
  }
  .tip:hover{transform:translateY(-3px);border-color:rgba(109,40,255,.3);border-left-color:var(--accent)}
  .tip .tip-num{
    flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center;
    background:rgba(109,40,255,.1);color:var(--brand);font-weight:800;font-size:15px;
    font-variant-numeric:tabular-nums;
  }
  .tip h3{font-size:17px;margin-bottom:6px}
  .tip p{font-size:14px;color:var(--text-2)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;margin:0 auto;display:grid;gap:14px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
    overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item.is-open{border-color:rgba(109,40,255,.4);box-shadow:var(--shadow)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:none;border:none;text-align:left;cursor:pointer;
    padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
  }
  .faq-q i{
    flex:0 0 26px;height:26px;border-radius:50%;display:grid;place-items:center;
    background:rgba(109,40,255,.1);color:var(--brand);font-size:12px;
    transition:transform .25s ease,background .25s ease;
  }
  .faq-item.is-open .faq-q i{transform:rotate(45deg);background:rgba(0,224,168,.2);color:#0E9E7B}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .faq-a p{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85}

  /* ---------- CTA ---------- */
  .cta-band{
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    border-radius:24px;padding:48px;display:flex;align-items:center;
    justify-content:space-between;gap:32px;position:relative;overflow:hidden;
    box-shadow:0 26px 60px -30px rgba(109,40,255,.85);
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(0,224,168,.32),transparent 68%);
  }
  .cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
  .cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
  .btn-white{background:#fff;color:var(--brand-deep);border-radius:999px}
  .btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(0,0,0,.5)}
  .btn-white:active{transform:translateY(0)}
  .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
  .btn-line:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--dark-text-2);border-top:1px solid rgba(109,40,255,.22);padding-top:64px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
  .footer-brand .brand{margin-bottom:18px}
  .footer-brand p{font-size:14px;line-height:1.85;max-width:340px}
  .footer-contact{display:flex;flex-direction:column;gap:10px;margin-top:20px}
  .footer-contact a{font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:color .2s}
  .footer-contact a i{color:var(--accent)}
  .footer-contact a:hover{color:var(--accent)}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
  .footer-col ul{display:grid;gap:12px}
  .footer-col a{font-size:14px;transition:color .2s}
  .footer-col a:hover{color:var(--accent)}
  .footer-bottom{
    border-top:1px solid rgba(109,40,255,.18);
    padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;
    gap:16px;flex-wrap:wrap;font-size:13px;
  }
  .footer-bottom .meta{display:flex;gap:20px;flex-wrap:wrap}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .wrap{padding:0 24px}
    .nav-links{display:none}
    .nav-cta .btn-login{display:none}
    .nav-toggle{display:grid;place-items:center}
    h1{font-size:38px}
    .page-hero h1{font-size:36px}
    h2{font-size:28px}
    .term-grid{grid-template-columns:repeat(2,1fr)}
    .pace-row{grid-template-columns:150px 1fr 110px;gap:16px}
    .pace-row .col-tag{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  }
  @media (max-width:768px){
    .section{padding:64px 0}
    .timeline{padding-left:60px}
    .timeline::before{left:15px}
    .tl-dot{left:-60px;width:34px;height:34px;font-size:12px;top:10px;box-shadow:0 0 0 5px #fff}
    .tl-item{grid-template-columns:1fr;gap:18px;margin-bottom:40px}
    .tl-item:nth-child(even) .tl-card{order:2}
    .tl-item:nth-child(even) .tl-media{order:1}
    .tl-media{order:1}
    .tl-card{order:2;padding:24px 22px}
    .pace-row{grid-template-columns:1fr;gap:8px;padding:20px 22px}
    .pace-row.head{display:none}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px 26px}
    .hero-inner{padding:48px 0 56px}
  }
  @media (max-width:520px){
    .wrap{padding:0 20px}
    h1{font-size:30px}
    .page-hero h1{font-size:30px}
    h2{font-size:24px}
    .sec-head{margin-bottom:36px}
    .term-grid{grid-template-columns:1fr}
    .hero-actions .btn,.cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .footer-bottom .meta{flex-direction:column;gap:6px}
  }

/* roulang page: category3 */
:root{
  --brand:#6D28FF;
  --brand-deep:#4A12C7;
  --accent:#00E0A8;
  --highlight:#FFC53D;
  --hot:#FF3D6E;
  --ink:#0D0917;
  --ink-card:#171126;
  --light:#F6F4FF;
  --text:#151022;
  --text-2:#5B5470;
  --d-text:#EDE9FF;
  --d-text-2:#A79FC7;
  --border:#E5E0F5;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 10px 30px -16px rgba(40,16,90,.28);
  --shadow-lg:0 24px 60px -28px rgba(40,16,90,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.site-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:#fff;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
section{scroll-margin-top:112px}

/* ---------- 顶部通告条 ---------- */
.topbar{background:var(--ink);color:var(--d-text-2);font-size:13.5px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px}
.topbar-inner span{display:inline-flex;align-items:center;gap:8px}
.topbar-inner i{color:var(--accent)}
.topbar-close{background:none;border:0;color:var(--d-text-2);font-size:18px;line-height:1;padding:2px 6px;border-radius:8px;transition:color .2s,background .2s}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.08)}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;letter-spacing:.6px;
  box-shadow:0 8px 20px -10px rgba(109,40,255,.9);
}
.brand-text{font-size:19px;font-weight:800;color:#fff;letter-spacing:.3px}
.brand-text em{font-style:normal;color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,9,23,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(109,40,255,.18);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -20px rgba(0,0,0,.85)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:999px;font-size:15px;font-weight:600;
  color:var(--d-text-2);transition:color .2s,background .2s;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;background:rgba(109,40,255,.2)}
.nav-links a.is-active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px -14px rgba(109,40,255,.95)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 36px -14px rgba(109,40,255,1)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(109,40,255,.55);border-radius:12px}
.btn-ghost:hover{background:rgba(109,40,255,.14);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0);background:rgba(109,40,255,.24)}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(109,40,255,.45);border-radius:12px;box-shadow:0 8px 22px -16px rgba(40,16,90,.5)}
.btn-outline:hover{background:rgba(109,40,255,.08);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0);background:rgba(109,40,255,.16)}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 14px 30px -16px rgba(0,0,0,.6)}
.btn-light:hover{transform:translateY(-2px);filter:brightness(1.02)}
.btn-light:active{transform:translateY(0);filter:brightness(.95)}
.btn-block{width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:17px;
}
.menu-toggle:hover{background:rgba(109,40,255,.25)}
.mobile-drawer{display:none;border-top:1px solid rgba(255,255,255,.08);background:rgba(13,9,23,.98);padding:18px 32px 24px}
.mobile-drawer.is-open{display:block}
.mobile-drawer nav{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.mobile-drawer nav a{padding:12px 14px;border-radius:12px;color:var(--d-text);font-weight:600;font-size:16px}
.mobile-drawer nav a:hover{background:rgba(255,255,255,.07)}
.mobile-drawer nav a.is-active{background:rgba(109,40,255,.24);color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:var(--d-text);
  background:
    linear-gradient(180deg,rgba(13,9,23,.9),rgba(13,9,23,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:56px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 320px at 12% 12%,rgba(109,40,255,.34),transparent 68%),
    radial-gradient(360px 300px at 88% 78%,rgba(0,224,168,.2),transparent 70%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:56px;background:#fff;
  clip-path:polygon(0 100%,100% 0,100% 100%);
}
.hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--d-text-2);margin-bottom:22px}
.breadcrumb a{color:var(--d-text-2);transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span[aria-current]{color:#fff}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--accent);background:rgba(0,224,168,.12);border:1px solid rgba(0,224,168,.35);
  margin-bottom:18px;
}
.hero h1{
  font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.4px;color:#fff;margin-bottom:18px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),#8EE7FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--d-text-2);max-width:720px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 指标条 ---------- */
.metrics-section{background:#fff;padding:8px 0 0}
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  padding-top:40px;padding-bottom:10px;
}
.metric{
  background:var(--light);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(109,40,255,.35);box-shadow:var(--shadow-lg)}
.metric strong{display:block;font-size:28px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.metric strong span{font-size:14px;font-weight:700;color:var(--text-2);margin-left:4px}
.metric p{margin-top:6px;font-size:14px;color:var(--text-2)}

/* ---------- 双栏 FAQ ---------- */
.faq-section{background:var(--light);padding:88px 0 96px;margin-top:48px}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.2px;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-2)}
.two-col{display:grid;grid-template-columns:280px minmax(0,1fr);gap:40px;align-items:start}

.toc{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
}
.toc-title{font-size:13px;font-weight:800;letter-spacing:1px;color:var(--text-2);margin-bottom:14px;text-transform:uppercase}
.toc ul{display:flex;flex-direction:column;gap:4px;margin-bottom:18px}
.toc-link{
  display:block;padding:10px 12px;border-radius:12px;font-size:15px;font-weight:600;color:var(--text-2);
  border-left:3px solid transparent;transition:color .2s,background .2s,border-color .2s,transform .2s;
}
.toc-link:hover{color:var(--brand);background:rgba(109,40,255,.06);transform:translateX(2px)}
.toc-link.is-active{color:var(--brand);background:rgba(109,40,255,.1);border-left-color:var(--accent)}
.toc-cta{
  display:flex;flex-direction:column;gap:4px;padding:16px 16px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,rgba(109,40,255,.1),rgba(0,224,168,.12));
  font-size:14px;font-weight:700;color:var(--brand-deep);
  transition:transform .2s ease,box-shadow .2s ease;
}
.toc-cta span{font-size:13px;font-weight:600;color:var(--text-2)}
.toc-cta:hover{transform:translateY(-2px);box-shadow:0 14px 30px -20px rgba(109,40,255,.9)}

.faq-groups{display:flex;flex-direction:column;gap:40px}
.faq-group h2{
  font-size:22px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:10px;
}
.faq-group h2 i{color:var(--brand);font-size:16px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  box-shadow:0 6px 20px -18px rgba(40,16,90,.5);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(109,40,255,.32)}
.faq-item.is-open{border-color:rgba(109,40,255,.45);box-shadow:0 18px 44px -26px rgba(40,16,90,.7)}
.faq-q{margin:0}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;text-align:left;padding:18px 20px;
  font-size:16.5px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-btn i{
  flex:none;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  background:rgba(109,40,255,.1);color:var(--brand);
  transition:transform .28s ease,background .2s ease,color .2s ease;
}
.faq-btn:hover i{background:rgba(109,40,255,.2)}
.faq-item.is-open .faq-btn i{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;padding:0 20px;
  transition:max-height .32s ease,padding .32s ease;
}
.faq-item.is-open .faq-a{max-height:640px;padding-bottom:20px}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--text-2)}
.faq-a p + p{margin-top:10px}
.faq-a strong{color:var(--text)}

/* ---------- 流程 ---------- */
.process{background:#fff;padding:96px 0}
.process-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.process-media{
  position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);
}
.process-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.process-media:hover img{transform:scale(1.03)}
.process-media figcaption{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(13,9,23,.78);backdrop-filter:blur(8px);
  color:var(--d-text);border-radius:14px;padding:12px 16px;font-size:13.5px;
}
.steps{display:flex;flex-direction:column;gap:22px}
.step{display:flex;gap:18px;padding-bottom:22px;border-bottom:1px dashed var(--border)}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-num{
  flex:none;width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:15px;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 12px 24px -16px rgba(109,40,255,.95);
}
.step h3{font-size:19px;font-weight:700;margin-bottom:6px}
.step p{font-size:15px;color:var(--text-2)}

/* ---------- 反馈表单 ---------- */
.feedback{background:var(--light);padding:96px 0;border-top:1px solid var(--border)}
.feedback-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start}
.feedback-aside h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:14px}
.feedback-aside p{font-size:15.5px;color:var(--text-2);margin-bottom:18px}
.feedback-aside ul{display:flex;flex-direction:column;gap:10px}
.feedback-aside li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.feedback-aside li i{color:var(--accent);margin-top:6px;font-size:12px}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:700;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--border);
  background:#fff;padding:0 14px;font-size:15px;color:var(--text);
  font-family:inherit;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:140px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,40,255,.12);
}
.field-full{grid-column:1 / -1}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:24px}
.form-note{font-size:13px;color:var(--text-2);max-width:460px}
.form-alert{
  display:flex;align-items:flex-start;gap:10px;
  border-radius:var(--radius-sm);padding:14px 16px;font-size:14.5px;margin-bottom:22px;
}
.form-alert i{margin-top:4px}
.form-alert.ok{background:rgba(0,224,168,.12);border:1px solid rgba(0,224,168,.4);color:#0B7A5E}
.form-alert.err{background:rgba(255,61,110,.1);border:1px solid rgba(255,61,110,.35);color:#B01340}

/* ---------- CTA ---------- */
.cta-wrap{background:#fff;padding:88px 0 96px}
.cta-banner{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-radius:24px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 30px 70px -34px rgba(74,18,199,.9);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(360px 260px at 85% 15%,rgba(0,224,168,.3),transparent 70%);
}
.cta-banner > *{position:relative;z-index:2}
.cta-banner h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-banner p{font-size:15.5px;color:rgba(255,255,255,.82);max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--d-text-2);border-top:1px solid rgba(109,40,255,.18);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{font-size:14.5px;line-height:1.8;margin:18px 0 18px;max-width:420px}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact a{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--d-text);transition:color .2s}
.footer-contact a:hover{color:var(--accent)}
.footer-contact i{color:var(--accent)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--d-text-2);
}
.footer-bottom .meta{display:flex;flex-wrap:wrap;gap:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-inner{min-height:68px}
  .two-col{grid-template-columns:minmax(0,1fr)}
  .toc{position:static}
  .toc ul{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc-link{border-left:0;border-radius:999px;padding:8px 14px;background:rgba(109,40,255,.07)}
  .toc-link.is-active{border-left:0;background:rgba(109,40,255,.16)}
  .process-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .feedback-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .hero h1{font-size:40px}
}
@media (max-width:768px){
  .hero{padding:44px 0 84px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .faq-section,.process,.feedback,.cta-wrap{padding:64px 0}
  .section-head h2{font-size:26px}
  .feedback-aside h2{font-size:24px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-banner h2{font-size:24px}
  .form-grid{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .wrap{padding:0 20px}
  header .header-actions .btn-ghost{display:none}
  .hero h1{font-size:28px}
  .hero-actions .btn,.cta-banner .btn{width:100%}
  .metrics{grid-template-columns:minmax(0,1fr)}
  .faq-btn{font-size:15.5px;padding:16px}
  .faq-a{padding:0 16px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .mobile-drawer{padding:16px 20px 22px}
}