/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --accent:#FF6B3D;
  --lime:#C9F24D;
  --ink:#17131F;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --border:#E7E2DA;
  --t1:#1D1A26;
  --t2:#5B5568;
  --t3:#8A8496;
  --danger:#E5484D;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --grad-soft:linear-gradient(120deg,rgba(123,92,255,.12) 0%,rgba(180,76,255,.10) 42%,rgba(255,107,61,.12) 100%);
  --r-xl:24px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --sh-hover:0 20px 44px -16px rgba(23,19,31,.24);
  --container:1240px;
  --sec-gap:104px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(123,92,255,.22)}
/* ============ 容器与通用 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-gap) 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-head__left{max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--border);
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.02em;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
h2.section-title{
  font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.35;letter-spacing:-.01em;
  position:relative;padding-left:18px;
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--grad);
}
.section-desc{margin-top:14px;color:var(--t2);font-size:15.5px;max-width:680px}
.muted{color:var(--t3);font-size:14px}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 24px -12px rgba(123,92,255,.72);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(123,92,255,.82)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px -8px rgba(123,92,255,.7)}
.btn-ghost{
  border:1.5px solid var(--brand);color:var(--brand);background:transparent;
}
.btn-ghost:hover{background:rgba(123,92,255,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost-light{
  border:1.5px solid rgba(255,255,255,.72);color:#fff;background:transparent;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:14.5px;
}
.btn-link .arw{transition:transform .22s ease}
.btn-link:hover .arw{transform:translateX(4px)}
.btn-link:hover{text-decoration:underline;text-underline-offset:5px}
/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
  white-space:nowrap;
}
.badge-grad{background:var(--grad);color:#fff}
.badge-soft{background:#fff;border:1px solid var(--border);color:var(--t2)}
.badge-lime{background:var(--lime);color:#22300A}
.badge-violet{background:rgba(123,92,255,.12);color:#5A3EDA;border:1px solid rgba(123,92,255,.2)}
.badge-orange{background:rgba(255,107,61,.12);color:#C7431B;border:1px solid rgba(255,107,61,.22)}
/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,247,242,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.92);
  border-bottom-color:var(--border);
  box-shadow:0 8px 26px -18px rgba(23,19,31,.34);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;transition:height .25s ease;
}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:19px;
  box-shadow:0 8px 18px -10px rgba(123,92,255,.9);
}
.logo-text{font-size:16.5px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  flex:1;min-width:0;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-block;flex-shrink:0;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--border);
  font-size:14px;font-weight:500;color:var(--t2);
  position:relative;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.28)}
.chip.is-active{
  background:var(--grad);color:#fff;border-color:transparent;font-weight:600;
}
.chip.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-11px;width:26px;height:3px;border-radius:3px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:8px}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform .25s ease,opacity .2s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(23,19,31,.45);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.mobile-drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,86vw);
  background:#fff;padding:24px 22px 28px;
  display:flex;flex-direction:column;gap:22px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.4,.02,.2,1);
  overflow-y:auto;
}
.mobile-drawer.is-open .mobile-drawer__panel{transform:translateX(0)}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:38px;height:38px;border-radius:11px;border:1px solid var(--border);font-size:20px;line-height:1;color:var(--t2)}
.drawer-close:hover{background:rgba(123,92,255,.08);color:var(--brand)}
.drawer-links{display:flex;flex-direction:column;gap:8px}
.drawer-links a{
  padding:13px 16px;border-radius:var(--r-md);
  background:#FAF7F2;border:1px solid var(--border);
  font-size:15px;font-weight:500;color:var(--t2);
}
.drawer-links a:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.28)}
.drawer-links a.is-active{background:var(--grad);color:#fff;border-color:transparent;font-weight:600}
.drawer-cta{margin-top:auto}
.drawer-cta .btn{width:100%}
/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:76px 0 96px}
.hero__bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.09;
}
.hero__blob{
  position:absolute;z-index:0;
  top:-160px;right:-200px;width:780px;height:780px;
  background:var(--grad);opacity:.15;filter:blur(6px);
  border-radius:42% 58% 63% 37% / 45% 40% 60% 55%;
  transform:rotate(12deg);
  pointer-events:none;
}
.hero__blob2{
  position:absolute;z-index:0;
  bottom:-260px;left:-220px;width:560px;height:560px;
  background:radial-gradient(circle at 30% 30%,rgba(201,242,77,.28),rgba(201,242,77,0) 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:56fr 44fr;gap:56px;align-items:center;
}
.hero-title{
  font-size:clamp(30px,3.8vw,50px);
  font-weight:700;line-height:1.22;letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero-title em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--t2);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 28px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t2)}
.trust-icon{
  width:20px;height:20px;border-radius:6px;flex-shrink:0;
  background:rgba(123,92,255,.12);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:12px;font-weight:700;
}
/* Hero 右侧面板 */
.hero-panel{
  position:relative;
  background:linear-gradient(160deg,#1F1930 0%,#17131F 62%,#241B36 100%);
  border-radius:var(--r-xl);
  padding:26px;
  box-shadow:0 30px 70px -30px rgba(23,19,31,.6);
  overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);
  padding:1px;background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.hero-panel__media{
  border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/9;margin-bottom:20px;
  background:var(--grad);
}
.hero-panel__media img{width:100%;height:100%;object-fit:cover}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.hero-badge{
  flex:1 1 30%;min-width:110px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:12px 14px;
}
.hero-badge b{
  display:block;font-size:20px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.hero-badge span{font-size:12.5px;color:#A79FB5}
.mini-chart{display:flex;align-items:flex-end;gap:6px;height:52px;margin-top:4px}
.mini-chart i{
  flex:1;border-radius:4px 4px 2px 2px;
  background:linear-gradient(180deg,rgba(123,92,255,.95),rgba(255,107,61,.55));
  animation:barPulse 2.6s ease-in-out infinite;
}
.mini-chart i:nth-child(1){height:38%;animation-delay:0s}
.mini-chart i:nth-child(2){height:56%;animation-delay:.12s}
.mini-chart i:nth-child(3){height:44%;animation-delay:.24s}
.mini-chart i:nth-child(4){height:72%;animation-delay:.36s}
.mini-chart i:nth-child(5){height:60%;animation-delay:.48s}
.mini-chart i:nth-child(6){height:88%;animation-delay:.6s}
.mini-chart i:nth-child(7){height:76%;animation-delay:.72s}
@keyframes barPulse{0%,100%{opacity:.72}50%{opacity:1}}
/* ============ 指标看板 ============ */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:26px 24px;
  box-shadow:var(--sh);position:relative;overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.metric-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.metric-card:hover::after{transform:scaleX(1)}
.metric-num{
  font-size:38px;font-weight:700;line-height:1.1;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.metric-name{margin-top:8px;font-size:15px;font-weight:600;color:var(--t1)}
.metric-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;gap:10px}
.metric-bar{flex:1;height:6px;border-radius:999px;background:#F1EDE6;overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}
/* ============ 服务矩阵 ============ */
.svc-matrix{
  display:grid;gap:24px;
  grid-template-columns:repeat(3,1fr);
  grid-template-areas:
    "feat feat a"
    "feat feat b"
    "c d e";
}
.svc-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-xl);padding:28px;
  box-shadow:var(--sh);position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.svc-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.svc-card:hover::after{transform:scaleX(1)}
.svc-card:hover .btn-link .arw{transform:translateX(4px)}
.svc-feature{grid-area:feat;padding:32px}
.svc-a{grid-area:a}
.svc-b{grid-area:b}
.svc-c{grid-area:c}
.svc-d{grid-area:d}
.svc-e{grid-area:e}
.svc-num{
  width:36px;height:36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(123,92,255,.1);color:var(--brand);
  font-size:14px;font-weight:700;margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.svc-card h3{font-size:19px;font-weight:700;margin-bottom:12px;line-height:1.5}
.svc-card p{color:var(--t2);font-size:15px;margin-bottom:18px}
.svc-card .btn-link{margin-top:auto}
.svc-feature__media{
  border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/9;
  margin-bottom:22px;background:var(--grad);
}
.svc-feature__media img{width:100%;height:100%;object-fit:cover}
.svc-feature h3{font-size:23px}
.svc-chips{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 18px}
/* ============ 最新信息（CMS 区域） ============ */
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.news-main{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.news-main__media{aspect-ratio:16/9;background:var(--grad);overflow:hidden}
.news-main__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-main:hover .news-main__media img{transform:scale(1.04)}
.news-main__body{padding:26px 28px 30px;display:flex;flex-direction:column;gap:12px}
.news-main__body h3{font-size:21px;font-weight:700;line-height:1.5}
.news-main__body p{color:var(--t2);font-size:15px;margin:0}
.news-side{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:flex;flex-direction:column;gap:8px;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:18px 22px;
  box-shadow:var(--sh);flex:1;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.news-item h4{font-size:16px;font-weight:600;line-height:1.55;margin:0}
.news-item time,.news-main__body time{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--card);border:1px dashed var(--border);border-radius:var(--r-xl);
  color:var(--t2);text-align:center;padding:40px 24px;
}
.empty-state .ico{
  width:46px;height:46px;border-radius:14px;background:rgba(123,92,255,.1);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px;
}
/* ============ 对比 ============ */
.compare{display:grid;grid-template-columns:1fr 76px 1fr;gap:0;align-items:stretch}
.compare-panel{
  border-radius:var(--r-xl);padding:30px 28px;
  border:1px solid var(--border);background:var(--card);
}
.compare-panel--before{background:#F4F2EE;color:var(--t2);filter:saturate(.55)}
.compare-panel--after{
  background:var(--card);border-color:rgba(123,92,255,.34);
  box-shadow:0 24px 54px -26px rgba(123,92,255,.5);
  position:relative;overflow:hidden;
}
.compare-panel--after::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
}
.compare-panel h3{font-size:18px;font-weight:700;margin-bottom:22px}
.compare-row{margin-bottom:20px}
.compare-row:last-child{margin-bottom:0}
.compare-row__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:14.5px}
.compare-bar{height:8px;border-radius:999px;background:#EFEBE4;overflow:hidden}
.compare-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#B9B3C4,#9C96AB)}
.compare-panel--after .compare-bar i{background:var(--grad)}
.vs-badge{
  display:flex;align-items:center;justify-content:center;
}
.vs-badge span{
  width:60px;height:60px;border-radius:50%;
  background:var(--grad);color:#fff;font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -14px rgba(123,92,255,.85);
}
/* ============ 能力亮点 ============ */
.hl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.hl-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-xl);padding:28px;
  box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.hl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.hl-card__ico{
  width:44px;height:44px;border-radius:14px;margin-bottom:18px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
}
.hl-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.hl-card p{color:var(--t2);font-size:15px}
/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:32fr 68fr;gap:44px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(123,92,255,.3)}
.faq-item.is-open{box-shadow:var(--sh);border-color:rgba(123,92,255,.34)}
.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:600;line-height:1.6;color:var(--t1);
}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:rgba(123,92,255,.1);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .24s ease,background-color .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q .plus{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 24px 22px;color:var(--t2);font-size:15.5px;line-height:1.8}
/* ============ 表单 ============ */
.cta-card{
  display:grid;grid-template-columns:40fr 60fr;
  border-radius:var(--r-xl);overflow:hidden;
  box-shadow:0 30px 70px -34px rgba(23,19,31,.5);
  border:1px solid var(--border);background:#fff;
}
.cta-card__left{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#1F1930 0%,#17131F 100%);
  padding:44px 38px;color:#fff;
  display:flex;flex-direction:column;
}
.cta-card__left::before{
  content:"";position:absolute;top:-120px;right:-120px;width:340px;height:340px;
  background:var(--grad);opacity:.42;border-radius:46% 54% 60% 40% / 48% 42% 58% 52%;
  filter:blur(4px);
}
.cta-card__left h2{position:relative;font-size:clamp(21px,2.2vw,27px);font-weight:700;line-height:1.45;margin-bottom:16px}
.cta-card__left p{position:relative;color:#A79FB5;font-size:15px;margin-bottom:26px}
.guard-list{position:relative;display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.guard-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#DCD6E8}
.guard-list li i{
  flex-shrink:0;width:18px;height:18px;border-radius:6px;margin-top:5px;
  background:var(--lime);color:#22300A;font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-style:normal;
}
.cta-badge{
  position:relative;align-self:flex-start;margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:#fff;font-variant-numeric:tabular-nums;
}
.cta-card__right{padding:44px 40px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--t2)}
.field input,.field textarea{
  width:100%;padding:13px 15px;
  border:1px solid var(--border);border-radius:var(--r-sm);
  background:#FDFCFA;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#B4AEBF}
.field input:focus,.field textarea:focus{
  outline:none;border:2px solid var(--brand);padding:12px 14px;
  background:#fff;box-shadow:0 0 0 3px rgba(123,92,255,.2);
}
.field-err{font-size:13px;color:var(--danger);display:none}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(229,72,77,.14)}
.field.has-error .field-err{display:block}
.seg-group{display:flex;flex-wrap:wrap;gap:10px}
.seg{
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--border);background:#fff;
  font-size:14px;color:var(--t2);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease;
}
.seg:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.28)}
.seg.is-active{background:var(--grad);color:#fff;border-color:transparent;font-weight:600}
.form-foot{grid-column:1/-1;display:flex;flex-direction:column;gap:14px;margin-top:4px}
.form-foot .btn{width:100%}
.form-note{font-size:13px;color:var(--t3);text-align:center}
.form-state{
  display:none;align-items:center;gap:10px;
  padding:13px 18px;border-radius:var(--r-sm);font-size:14.5px;
}
.form-state.is-ok{display:flex;background:rgba(201,242,77,.24);color:#3A4D08;border:1px solid rgba(201,242,77,.7)}
.form-state.is-err{display:flex;background:rgba(229,72,77,.09);color:#B3272C;border:1px solid rgba(229,72,77,.35)}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A79FB5;padding:70px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:#A79FB5;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--lime);transform:translateX(2px)}
.footer-col li{font-size:14.5px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:24px 0 34px;font-size:13.5px;color:#7C7489;
}
.footer-bottom a{color:#A79FB5}
.footer-bottom a:hover{color:var(--lime)}
/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec-gap:88px}
  .hero-inner{gap:40px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .svc-matrix{
    grid-template-columns:repeat(2,1fr);
    grid-template-areas:
      "feat feat"
      "a b"
      "c d"
      "e e";
  }
  .hl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:flex}
  .hero{padding:52px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero__blob{width:520px;height:520px;top:-120px;right:-180px}
  .news-layout{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-card{grid-template-columns:1fr}
  .cta-card__left{padding:36px 28px}
  .cta-card__right{padding:34px 28px}
  .compare{grid-template-columns:1fr;gap:18px}
  .vs-badge span{width:52px;height:52px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec-gap:64px}
  .container{padding:0 18px}
  .section{padding:var(--sec-gap) 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:32px}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .metric-card{padding:20px 18px}
  .metric-num{font-size:30px}
  .svc-matrix{
    grid-template-columns:1fr;
    grid-template-areas:"feat" "a" "b" "c" "d" "e";
    gap:16px;
  }
  .svc-card,.svc-feature{padding:22px}
  .hl-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .news-main__body{padding:22px 20px 24px}
}
@media (max-width:520px){
  .metrics-grid{grid-template-columns:1fr}
  .hero-badge{flex:1 1 100%}
  .hero-title{font-size:27px}
  .cta-card__left,.cta-card__right{padding:26px 20px}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;transition-duration:.001s!important}
}

/* roulang page: article */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --accent:#FF6B3D;
  --lime:#C9F24D;
  --ink:#17131F;
  --text:#1D1A26;
  --text-2:#5B5568;
  --text-3:#8A8496;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --danger:#E5484D;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --grad-soft:linear-gradient(120deg,rgba(123,92,255,.10) 0%,rgba(180,76,255,.08) 45%,rgba(255,107,61,.10) 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --shadow-hover:0 20px 44px -16px rgba(23,19,31,.24);
  --container:1240px;
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(123,92,255,.45);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(123,92,255,.22);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:14px;border:0;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -12px rgba(123,92,255,.75);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(123,92,255,.8);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px -10px rgba(123,92,255,.7);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:rgba(123,92,255,.08);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.72);}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-grad{background:var(--grad);color:#fff;}
.badge-ghost{background:#fff;border:1px solid var(--line);color:var(--text-2);}
.badge-soft{background:rgba(123,92,255,.10);color:var(--brand);border:1px solid rgba(123,92,255,.20);}
.badge-lime{background:var(--lime);color:#28310A;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(250,247,242,.92);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(23,19,31,.45);background:rgba(255,255,255,.94);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .25s ease;}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  color:#fff;font-weight:800;font-size:17px;display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(123,92,255,.9);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.logo:hover .logo-text{color:var(--brand);}
.nav-chips{
  display:flex;align-items:center;gap:4px;
  padding:4px;border-radius:999px;background:#fff;border:1px solid var(--line);
  box-shadow:0 1px 2px rgba(23,19,31,.04);
}
.chip{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.chip::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:3px;border-radius:3px;background:var(--grad);transition:width .24s ease;
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px -12px rgba(123,92,255,.9);}
.chip.is-active::after{width:0;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;color:var(--text);
  transition:border-color .2s ease,background-color .2s ease;
}
.menu-toggle:hover{border-color:rgba(123,92,255,.4);background:rgba(123,92,255,.06);}
.menu-toggle .bars{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative;}
.menu-toggle .bars::before,.menu-toggle .bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease;
}
.menu-toggle .bars::before{top:-6px;}
.menu-toggle .bars::after{top:6px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:18px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.mobile-drawer .drawer-links a{
  padding:13px 16px;border-radius:14px;border:1px solid var(--line);
  color:var(--text-2);font-size:15px;font-weight:500;background:#FCFAF7;
}
.mobile-drawer .drawer-links a:hover{border-color:rgba(123,92,255,.4);color:var(--brand);}
body.drawer-open{overflow:hidden;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(150deg,rgba(23,19,31,.90) 0%,rgba(45,26,84,.88) 48%,rgba(23,19,31,.93) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:var(--grad);opacity:.28;filter:blur(40px);pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:60px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:20px;}
.crumbs a{color:rgba(255,255,255,.78);}
.crumbs a:hover{color:#fff;}
.crumbs .sep{color:rgba(255,255,255,.38);}
.crumbs .current{color:rgba(255,255,255,.62);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero .badge-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff;}
.article-hero h1{
  color:#fff;font-size:clamp(26px,3.4vw,44px);line-height:1.32;
  margin:18px 0 20px;max-width:900px;letter-spacing:.2px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.7);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4);}
.article-meta strong{color:#fff;font-weight:600;}

/* ============ 布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;
  padding:56px 0 0;
}
.article-main{min-width:0;}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 48px;box-shadow:var(--shadow);
}
.article-card::before{
  content:"";display:block;height:4px;border-radius:999px;background:var(--grad);
  margin:-44px -48px 32px;border-radius:24px 24px 0 0;
}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--text);}
.article-body h2{
  position:relative;font-size:24px;margin:44px 0 18px;padding-left:16px;scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:600;margin:32px 0 14px;scroll-margin-top:100px;}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px;}
.article-body p{margin:0 0 20px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul li,.article-body ol li{position:relative;margin-bottom:10px;line-height:1.85;}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--grad);
}
.article-body ol{list-style:decimal;padding-left:22px;}
.article-body ol li::before{display:none;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:4px solid var(--brand);
  background:linear-gradient(120deg,rgba(123,92,255,.08),rgba(255,107,61,.06));
  border-radius:0 16px 16px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:26px auto;box-shadow:var(--shadow);}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(123,92,255,.4);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--brand-2);}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;display:table;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body thead th{background:#F5F1FF;font-weight:600;color:var(--text);}
.article-body tbody tr:nth-child(even){background:#FCFAF7;}
.article-body tbody tr:last-child td{border-bottom:0;}

/* ============ 空态 ============ */
.article-empty{
  min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:40px 20px;
}
.article-empty .empty-icon{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid rgba(123,92,255,.2);color:var(--brand);
}
.article-empty h3{font-size:20px;}
.article-empty p{font-size:15px;color:var(--text-2);max-width:420px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{
  font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad);}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto;}
.toc-link{
  display:block;padding:8px 12px;border-radius:10px;font-size:14px;line-height:1.6;
  color:var(--text-2);border-left:3px solid transparent;transition:all .2s ease;
}
.toc-link:hover{background:rgba(123,92,255,.08);color:var(--brand);}
.toc-link.is-current{background:rgba(123,92,255,.10);color:var(--brand);font-weight:600;border-left-color:var(--brand);}
.side-empty{font-size:13.5px;color:var(--text-3);line-height:1.7;}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 14px;border-radius:12px;background:#FCFAF7;border:1px solid var(--line);
  font-size:14px;color:var(--text-2);transition:all .2s ease;
}
.side-links a:hover{border-color:rgba(123,92,255,.4);color:var(--brand);transform:translateX(3px);}
.side-links a span{color:var(--brand);}
.mobile-toc{display:none;margin-bottom:24px;}
.mobile-toc details{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--shadow);}
.mobile-toc summary{cursor:pointer;font-weight:600;font-size:15px;color:var(--text);list-style:none;}
.mobile-toc summary::-webkit-details-marker{display:none;}
.mobile-toc summary::after{content:"＋";float:right;color:var(--brand);font-weight:700;}
.mobile-toc details[open] summary::after{content:"－";}
.mobile-toc .toc-list{margin-top:12px;}

/* ============ 文末 ============ */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.article-nav{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;background:var(--grad);
}
.section-head p{font-size:14.5px;color:var(--text-2);margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .28s ease;z-index:3;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(123,92,255,.3);}
.post-card:hover::before{transform:scaleX(1);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad-soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-body .post-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;
}
.post-body .post-link .arrow{transition:transform .22s ease;}
.post-card:hover .post-link .arrow{transform:translateX(4px);}

/* ============ CTA ============ */
.cta-band{padding:80px 0 0;}
.cta-card{
  position:relative;overflow:hidden;background:var(--grad);color:#fff;
  border-radius:var(--r-lg);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 50px -24px rgba(123,92,255,.8);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-card > *{position:relative;z-index:2;}
.cta-card h2{color:#fff;font-size:clamp(21px,2.3vw,27px);margin-bottom:10px;}
.cta-card p{font-size:15px;color:rgba(255,255,255,.88);max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A79FB5;margin-top:96px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;}
.footer-col a{color:#A79FB5;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A8496;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{height:66px;}
  .article-layout{grid-template-columns:1fr;gap:28px;padding-top:40px;}
  .article-side{position:static;order:2;}
  .mobile-toc{display:block;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .article-card{padding:32px 28px;}
  .article-card::before{margin:-32px -28px 26px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .article-hero .container{padding-top:36px;padding-bottom:44px;}
  .article-card{padding:26px 20px;border-radius:20px;}
  .article-card::before{margin:-26px -20px 22px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding-top:56px;}
  .cta-card{padding:30px 24px;border-radius:20px;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .related{padding-top:48px;}
}
@media (max-width:520px){
  .logo-text{font-size:15px;}
  .header-actions .btn{display:none;}
  .article-hero h1{font-size:24px;}
  .article-meta{font-size:12.5px;}
  .btn{padding:12px 18px;font-size:14px;}
}

/* roulang page: category2 */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --accent:#FF6B3D;
  --lime:#C9F24D;
  --ink:#17131F;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --border:#E7E2DA;
  --t1:#1D1A26;
  --t2:#5B5568;
  --t3:#8A8496;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --grad-soft:linear-gradient(120deg,rgba(123,92,255,.12) 0%,rgba(180,76,255,.10) 45%,rgba(255,107,61,.10) 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --shadow-lg:0 20px 44px -16px rgba(23,19,31,.24);
  --container:1240px;
  --section:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--t1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,background-color .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--border);
  box-shadow:0 8px 28px -18px rgba(23,19,31,.35);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
  transition:min-height .25s ease;
}
.is-scrolled .header-inner{min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  color:#fff;font-weight:700;font-size:19px;
  display:grid;place-items:center;
  box-shadow:0 8px 18px -8px rgba(123,92,255,.7);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  margin-left:auto;flex-wrap:nowrap;
}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  font-size:14.5px;color:var(--t2);
  background:rgba(255,255,255,.7);
  border:1px solid var(--border);
  position:relative;
  white-space:nowrap;
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.28)}
.chip.is-active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 10px 22px -12px rgba(123,92,255,.8);
}
.chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--grad);
}
.header-cta{
  margin-left:32px;
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:14px;
  font-size:14.5px;font-weight:600;color:#fff;
  background:var(--grad);
  box-shadow:0 12px 26px -14px rgba(123,92,255,.9);
  white-space:nowrap;
}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(123,92,255,.95)}
.header-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .chip{width:100%;justify-content:flex-start;margin-bottom:10px;padding:12px 16px}
.mobile-drawer .header-cta{width:100%;margin:8px 0 0}

/* ============ Breadcrumb ============ */
.crumb-bar{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C6C0B6}

/* ============ Hero ============ */
.page-hero{position:relative;padding:44px 0 0;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:-10% -20% auto -20%;height:420px;
  background:linear-gradient(120deg,rgba(123,92,255,.20) 0%,rgba(180,76,255,.14) 42%,rgba(255,107,61,.14) 100%);
  clip-path:polygon(0 0,100% 0,100% 62%,0 100%);
  z-index:0;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:56px;align-items:center;
  padding-bottom:12px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid rgba(123,92,255,.28);
  color:var(--brand);font-size:13px;font-weight:600;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--grad);display:inline-block}
.page-hero h1{
  margin:20px 0 16px;
  font-size:clamp(28px,4vw,50px);
  letter-spacing:-.4px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--t2);max-width:600px}
.hero-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t2)}
.hero-points svg{flex:0 0 auto}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:14px;font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 30px -14px rgba(123,92,255,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(123,92,255,.95)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(123,92,255,.08);transform:translateY(-2px)}
.btn-line{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14.5px;font-weight:600}
.text-link svg{transition:transform .2s ease}
.text-link:hover svg{transform:translateX(4px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}

.hero-card{
  position:relative;border-radius:var(--radius-lg);
  background:var(--ink);color:#fff;
  padding:26px;overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.hero-card::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.hero-card h2{font-size:17px;color:#fff;margin-bottom:6px}
.hero-card .mini-note{font-size:13px;color:#A79FB5}
.hero-figure{margin-top:18px;border-radius:var(--radius-md);overflow:hidden;aspect-ratio:16/10;background:var(--grad-soft)}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-grad{background:var(--grad);color:#fff}
.badge-soft{background:rgba(123,92,255,.10);color:var(--brand);border:1px solid rgba(123,92,255,.22)}
.badge-lime{background:var(--lime);color:#20210B}
.hero-card .badge-soft{background:rgba(255,255,255,.10);color:#E9E4FF;border-color:rgba(255,255,255,.22)}
.trend{display:flex;align-items:flex-end;gap:6px;margin-top:20px;height:56px}
.trend i{flex:1;border-radius:6px 6px 3px 3px;background:linear-gradient(180deg,#7B5CFF,#FF6B3D);opacity:.85;display:block}
.trend i:nth-child(1){height:36%}
.trend i:nth-child(2){height:52%}
.trend i:nth-child(3){height:44%}
.trend i:nth-child(4){height:68%}
.trend i:nth-child(5){height:58%}
.trend i:nth-child(6){height:82%}
.trend i:nth-child(7){height:96%}

/* ============ Section base ============ */
.section{padding:var(--section) 0 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:var(--grad);
}
.section-head p{margin-top:14px;color:var(--t2);font-size:15.5px}
.section-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* ============ 登录方式卡 ============ */
.method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  position:relative;background:var(--card);
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(123,92,255,.3)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--t2);font-size:14.8px}
.card-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid rgba(123,92,255,.2);margin-bottom:16px;
}
.card .meta{margin-top:16px;font-size:13px;color:var(--t3)}
.method-grid .card:nth-child(2){margin-top:24px}
.method-grid .card:nth-child(3){margin-top:-8px}

/* ============ 时间轴 ============ */
.timeline-wrap{
  display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  gap:56px;align-items:start;
}
.timeline-side{position:sticky;top:110px}
.timeline-side .fig{
  margin-top:24px;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;background:var(--grad-soft);
}
.timeline-side .fig img{width:100%;height:100%;object-fit:cover}
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:25px;top:14px;bottom:14px;width:4px;border-radius:4px;background:var(--grad);
}
.tl-item{position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);gap:24px;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  width:52px;height:52px;border-radius:50%;
  background:#fff;border:2px solid rgba(123,92,255,.35);
  display:grid;place-items:center;font-weight:700;font-size:17px;
  color:var(--brand);position:relative;z-index:1;
  box-shadow:0 10px 22px -14px rgba(123,92,255,.7);
}
.tl-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(123,92,255,.3)}
.tl-body h3{font-size:19px;margin:12px 0 10px}
.tl-body p{color:var(--t2);font-size:15px}
.tl-points{margin-top:14px;display:grid;gap:9px}
.tl-points li{display:flex;gap:10px;font-size:14.5px;color:var(--t2)}
.tl-points li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;
  background:var(--grad);margin-top:11px;
}

/* ============ 场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.scene{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(123,92,255,.3)}
.scene h3{font-size:16.5px;margin-bottom:8px}
.scene p{font-size:14px;color:var(--t2)}

/* ============ 数据提示条 ============ */
.stat-band{
  margin-top:var(--section);
  border-radius:var(--radius-lg);
  background:var(--ink);color:#fff;
  padding:38px 36px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;
  position:relative;overflow:hidden;
}
.stat-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(180,76,255,.45),transparent 68%);
}
.stat{position:relative;z-index:1}
.stat b{
  display:block;font-size:clamp(26px,3vw,38px);line-height:1.1;
  background:linear-gradient(120deg,#C9F24D 0%,#7B5CFF 55%,#FF6B3D 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;margin-top:8px;font-size:14px;color:#C7C0D6}
.stat .badge{margin-top:12px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.6fr);gap:48px;align-items:start}
.faq-side p{color:var(--t2);margin-top:14px;font-size:15px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(123,92,255,.3)}
.faq-item.is-open{box-shadow:var(--shadow-sm);border-color:rgba(123,92,255,.35)}
.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(--t1);
}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-size:15px;line-height:1;
  transition:transform .24s ease,background-color .24s ease,color .24s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--grad);border-color:transparent;color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:0 24px 22px;color:var(--t2);font-size:15px}
.faq-item.is-open .faq-a{max-height:420px}

/* ============ CTA ============ */
.cta-band{margin-top:var(--section);padding-bottom:0}
.cta-card{
  border-radius:var(--radius-lg);
  background:var(--grad);
  color:#fff;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 30px 60px -30px rgba(123,92,255,.9);
  position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 88% 12%,rgba(255,255,255,.28),transparent 46%);
}
.cta-card h2{color:#fff;font-size:clamp(21px,2.4vw,30px);position:relative;z-index:1}
.cta-card p{color:rgba(255,255,255,.9);margin-top:10px;font-size:15px;max-width:620px;position:relative;z-index:1}
.cta-card .btn{position:relative;z-index:1;flex:0 0 auto;background:#fff;color:var(--brand);border:1.5px solid rgba(255,255,255,.9)}
.cta-card .btn:hover{background:rgba(255,255,255,.9);transform:translateY(-2px)}

/* ============ Footer ============ */
.site-footer{margin-top:var(--section);background:var(--ink);color:#C7C0D6;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;color:#A79FB5;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14px;color:#A79FB5}
.footer-col a{color:#A79FB5;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  font-size:13px;color:#8A8496;
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  :root{--section:88px}
  .nav-chips{gap:6px}
  .chip{padding:8px 13px;font-size:14px}
  .header-cta{margin-left:20px;padding:10px 18px}
}
@media (max-width:1023px){
  :root{--section:72px}
  .nav-chips,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .timeline-wrap{grid-template-columns:1fr;gap:36px}
  .timeline-side{position:static}
  .method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .method-grid .card:nth-child(2),
  .method-grid .card:nth-child(3){margin-top:0}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:32px 28px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-hero{padding-top:28px}
  .hero-points{gap:10px 18px}
  .hero-actions .btn{width:100%}
  .method-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr 1fr;gap:20px}
  .timeline::before{left:17px}
  .tl-item{grid-template-columns:36px minmax(0,1fr);gap:16px}
  .tl-dot{width:36px;height:36px;font-size:14px;border-width:2px}
  .tl-body{padding:20px}
  .card{padding:22px}
  .faq-q{padding:17px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .stat-band{grid-template-columns:1fr}
  .hero-card{padding:20px}
}

/* roulang page: category1 */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --accent:#FF6B3D;
  --lime:#C9F24D;
  --ink:#17131F;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --border:#E7E2DA;
  --text:#1D1A26;
  --text-2:#5B5568;
  --text-3:#8A8496;
  --danger:#E5484D;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --shadow-hover:0 20px 44px -16px rgba(23,19,31,.24);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(123,92,255,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(23,19,31,.35);background:rgba(255,255,255,.95)}
.header-inner{display:flex;align-items:center;gap:28px;height:78px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:800;letter-spacing:0;
  box-shadow:0 8px 20px -10px rgba(123,92,255,.9);
}
.logo-text{font-size:17px;letter-spacing:.2px;white-space:nowrap}
.nav-chips{display:flex;gap:8px;flex:1;justify-content:center;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;padding:8px 15px;border-radius:999px;
  border:1px solid var(--border);background:rgba(255,255,255,.75);
  font-size:14px;color:var(--text-2);transition:all .22s ease;white-space:nowrap;
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.35)}
.chip.is-active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 10px 22px -12px rgba(123,92,255,.95);
}
.header-cta{flex:none;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;overflow:hidden;max-height:0;transition:max-height .3s ease;
  border-top:1px solid transparent;background:#fff;
}
.mobile-drawer.is-open{max-height:520px;border-top-color:var(--border)}
.mobile-drawer ul{padding:16px 24px 24px;display:flex;flex-direction:column;gap:10px}
.mobile-drawer a{display:block;padding:12px 16px;border-radius:12px;border:1px solid var(--border);color:var(--text-2)}
.mobile-drawer a.is-active{background:var(--grad);color:#fff;border-color:transparent}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:14px;font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(123,92,255,.95)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(123,92,255,.95)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px -10px rgba(123,92,255,.9)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(123,92,255,.08)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost-light{border-color:rgba(255,255,255,.75);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.16)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.2px}
.badge-grad{background:var(--grad);color:#fff}
.badge-soft{background:rgba(123,92,255,.1);color:var(--brand);border:1px solid rgba(123,92,255,.22)}
.badge-lime{background:var(--lime);color:#22300a}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 72px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.09;
}
.hero::after{
  content:"";position:absolute;top:-160px;right:-180px;width:760px;height:560px;
  background:var(--grad);opacity:.16;filter:blur(6px);
  transform:rotate(-12deg);border-radius:140px;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:#c8c2ba}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:13px;color:var(--brand);font-weight:600;margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--grad);display:block}
h1{font-size:clamp(28px,4vw,50px);line-height:1.25;font-weight:800;letter-spacing:-.5px}
h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin-top:20px;font-size:17px;color:var(--text-2);max-width:620px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.trust{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap;font-size:13.5px;color:var(--text-2)}
.trust li{display:flex;align-items:center;gap:8px}
.trust li::before{content:"";width:16px;height:16px;border-radius:50%;border:1.5px solid var(--brand);display:block;background:radial-gradient(circle,rgba(123,92,255,.5) 0 34%,transparent 36%)}
.hero-card{
  position:relative;background:var(--ink);border-radius:var(--radius-lg);padding:22px;
  box-shadow:var(--shadow-hover);overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.85;
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);background:var(--grad)}
.hero-card-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.hc-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-sm);padding:12px}
.hc-stat b{display:block;font-size:19px;color:#fff;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hc-stat span{font-size:12.5px;color:#A79FB5}
.mini-bars{display:flex;align-items:flex-end;gap:6px;height:52px;margin-top:18px}
.mini-bars i{flex:1;border-radius:5px 5px 3px 3px;background:var(--grad);opacity:.9;display:block}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0}
.sec-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;position:relative;padding-left:18px}
.sec-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;background:var(--grad)}
.sec-head p{margin-top:14px;color:var(--text-2)}

/* ---------- 指标条 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:22px 24px;box-shadow:var(--shadow)}
.stat-card b{display:block;font-size:clamp(28px,3vw,38px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-card span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}
.stat-card em{display:inline-flex;margin-top:12px;height:24px;align-items:center;padding:0 10px;border-radius:999px;background:var(--lime);color:#22300a;font-size:12.5px;font-weight:600;font-style:normal}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.split + .split{border-top:1px dashed var(--border)}
.split.reverse .media{order:2}
.media{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);
  background:var(--grad);aspect-ratio:16/11;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.media:hover img{transform:scale(1.03)}
.split h3{font-size:21px;font-weight:700;margin-bottom:14px}
.split p{color:var(--text-2)}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-2);font-size:15px}
.point-list li::before{
  content:"";flex:none;width:9px;height:9px;margin-top:9px;border-radius:50%;
  background:var(--grad);
}
.step-tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(123,92,255,.1);color:var(--brand);font-size:12.5px;font-weight:600;margin-bottom:16px}

/* ---------- 要点双卡 ---------- */
.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.note-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;overflow:hidden;
}
.note-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(123,92,255,.3)}
.note-card:hover::before{transform:scaleX(1)}
.note-card h3{font-size:19px;margin-bottom:8px}
.note-card > p{color:var(--text-2);font-size:15px;margin-bottom:18px}
.note-card ul{display:flex;flex-direction:column;gap:10px}
.note-card ul li{display:flex;gap:10px;font-size:15px;color:var(--text-2);align-items:flex-start}
.note-card ul li::before{content:"✓";color:var(--brand);font-weight:700;flex:none}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:32fr 68fr;gap:56px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
.faq-side p{margin-top:14px;color:var(--text-2)}
.faq-side .btn{margin-top:24px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:0 24px;margin-bottom:14px;transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:rgba(123,92,255,.3)}
.faq-item[open]{border-color:rgba(123,92,255,.35);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;font-weight:700;font-size:16.5px;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:none;width:11px;height:11px;margin-right:5px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 0 22px;color:var(--text-2);font-size:15.5px;border-top:1px solid var(--border);padding-top:16px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--radius-lg);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  color:#fff;box-shadow:0 26px 60px -30px rgba(123,92,255,.9);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.35}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.9);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#A79FB5;padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.9;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:11px;font-size:14.5px}
.footer-col a{transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8A8496;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-chips{gap:6px}
  .chip{padding:7px 12px;font-size:13.5px}
}
@media (max-width:1023px){
  .nav-chips,.header-cta .btn{display:none}
  .nav-toggle{display:flex}
  .mobile-drawer{display:block}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero{padding:44px 0 56px}
  .split{grid-template-columns:1fr;gap:26px;padding:34px 0}
  .split.reverse .media{order:0}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-row{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .sec{padding:56px 0}
  .container{padding:0 18px}
  .note-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .hero-card{padding:16px}
  .hero-card-stats{grid-template-columns:1fr 1fr}
  .lead{font-size:16px}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .trust{flex-direction:column;gap:10px}
  .hero-card-stats{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --accent:#FF6B3D;
  --lime:#C9F24D;
  --ink:#1D1A26;
  --ink-2:#5B5568;
  --ink-3:#8A8496;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --dark:#17131F;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-btn:14px;
  --sh-1:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --sh-2:0 20px 44px -16px rgba(23,19,31,.24);
  --err:#E5484D;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(123,92,255,.45);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -12px rgba(123,92,255,.85)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(123,92,255,.9)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.4;transform:none;box-shadow:none;cursor:not-allowed}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(123,92,255,.08)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.85);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:12px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(4px)}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,247,242,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px -18px rgba(23,19,31,.35)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .24s ease}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:17px;letter-spacing:-.02em;
  box-shadow:0 8px 18px -10px rgba(123,92,255,.9);
}
.logo-text{font-weight:700;font-size:17px;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:8px;flex:1;min-width:0;
  overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;padding:9px 15px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.3)}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 22px -12px rgba(123,92,255,.95)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  padding:24px;display:flex;flex-direction:column;gap:10px;
  transform:translateX(-102%);transition:transform .28s ease;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer .chip{justify-content:flex-start;padding:14px 18px;border-radius:14px;font-size:15px}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:48px 0 88px}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.12}
.hero-slab{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(123,92,255,.14) 0%,rgba(180,76,255,.08) 45%,rgba(255,107,61,.10) 100%);
  clip-path:polygon(0 0,100% 0,100% 68%,0 100%);
}
.hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:26px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C8C2BA}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid rgba(123,92,255,.3);color:var(--brand);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad)}
.hero h1{font-size:clamp(28px,4vw,50px);line-height:1.24;margin-bottom:20px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px}
.trust-item{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;color:var(--ink-2)}
.trust-item i{
  width:22px;height:22px;border-radius:50%;background:rgba(123,92,255,.12);color:var(--brand);
  display:grid;place-items:center;font-size:12px;font-style:normal;font-weight:700;flex:none;
}
.hero-panel{
  background:var(--dark);border-radius:var(--r-lg);padding:24px;color:#fff;
  box-shadow:0 30px 60px -30px rgba(23,19,31,.7);
  position:relative;overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);padding:1px;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.75;pointer-events:none;
}
.hero-panel img{border-radius:var(--r-md);aspect-ratio:16/10;object-fit:cover;background:var(--grad)}
.panel-badges{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 16px}
.panel-note{font-size:13.5px;color:#A79FB5;line-height:1.7}
.mini-bars{display:flex;align-items:flex-end;gap:6px;height:46px;margin-top:18px}
.mini-bars span{flex:1;border-radius:6px 6px 3px 3px;background:var(--grad);opacity:.85}
.mini-bars span:nth-child(1){height:42%}
.mini-bars span:nth-child(2){height:58%}
.mini-bars span:nth-child(3){height:50%}
.mini-bars span:nth-child(4){height:76%}
.mini-bars span:nth-child(5){height:64%}
.mini-bars span:nth-child(6){height:92%}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);position:relative;padding-left:18px;margin-bottom:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--grad);
}
.section-head p{color:var(--ink-2)}
.head-with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.head-with-link .section-head{margin-bottom:0}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;letter-spacing:.01em}
.badge-grad{background:var(--grad);color:#fff}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.badge-lime{background:var(--lime);color:#20210F}
.badge-dark{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22)}

/* ---------- 规格对比卡 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.spec-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.spec-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.spec-card[data-tone="a"]::before{background:linear-gradient(90deg,#7B5CFF,#B44CFF)}
.spec-card[data-tone="b"]::before{background:linear-gradient(90deg,#B44CFF,#FF6B3D)}
.spec-card[data-tone="c"]::before{background:linear-gradient(90deg,#FF6B3D,#FFB03D)}
.spec-card[data-tone="d"]::before{background:linear-gradient(90deg,#7B5CFF,#C9F24D)}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,92,255,.3)}
.spec-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
.spec-top h3{font-size:20px}
.spec-card > p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.meter{height:8px;border-radius:999px;background:#F1ECE4;overflow:hidden;margin-bottom:8px}
.meter-fill{display:block;height:100%;border-radius:999px;background:var(--grad)}
.meter-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-3);margin-bottom:20px;font-variant-numeric:tabular-nums}
.spec-list{display:flex;flex-direction:column;gap:10px}
.spec-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.spec-list li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);margin-top:.62em;flex:none}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.metric-num{
  font-size:clamp(30px,3vw,40px);font-weight:700;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;line-height:1.15;margin-bottom:8px;
}
.metric-name{font-size:14.5px;color:var(--ink-2);margin-bottom:12px}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.scene:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.3);box-shadow:var(--sh-2)}
.scene h3{font-size:17px;margin-bottom:8px}
.scene p{font-size:14.5px;color:var(--ink-2)}
.scene-index{
  display:inline-grid;place-items:center;width:30px;height:30px;border-radius:10px;
  background:rgba(123,92,255,.1);color:var(--brand);font-size:13px;font-weight:700;margin-bottom:14px;
}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:center}
.flow-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);position:relative}
.flow-figure img{aspect-ratio:4/3;object-fit:cover;background:var(--grad)}
.flow-figure figcaption{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(23,19,31,.78);color:#fff;border-radius:14px;padding:12px 16px;font-size:13.5px;
  backdrop-filter:blur(6px);
}
.steps{display:flex;flex-direction:column;gap:18px}
.step{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:700;flex:none;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:32fr 68fr;gap:52px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.6vw,32px);position:relative;padding-left:18px;margin-bottom:16px}
.faq-side h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--grad)}
.faq-side p{color:var(--ink-2);margin-bottom:24px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:6px 24px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(123,92,255,.3);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:16.5px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:rgba(123,92,255,.12);color:var(--brand);font-size:15px;font-weight:700;
  transition:transform .24s ease,background-color .24s ease,color .24s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-body{padding:0 0 20px;color:var(--ink-2);font-size:15px}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:0 30px 60px -30px rgba(123,92,255,.85);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.cta-text{position:relative;z-index:1;max-width:620px}
.cta-text h2{font-size:clamp(21px,2.4vw,30px);margin-bottom:12px}
.cta-text p{font-size:15px;color:rgba(255,255,255,.9)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A79FB5;padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#A79FB5;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.footer-col a{color:#A79FB5}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);display:inline-block}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A8496;
}

/* ---------- 状态 ---------- */
.img-fallback{background:var(--grad);min-height:200px}
.is-empty{
  min-height:220px;display:grid;place-items:center;text-align:center;gap:12px;
  border:1px dashed var(--line);border-radius:var(--r-md);background:#fff;color:var(--ink-3);padding:32px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{gap:38px}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  .hero{padding:36px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-panel{order:-1}
  .section{padding:72px 0}
  .spec-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .flow-grid{grid-template-columns:1fr;gap:34px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:38px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:14px}
  .logo-text{font-size:15.5px}
  .mobile-drawer{top:64px}
  .section{padding:56px 0}
  .spec-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .hero-actions .btn{flex:1 1 auto}
  .trust-row{gap:14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cta-band{padding:30px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .metric-grid{grid-template-columns:1fr}
  .metric-num{font-size:32px}
  .spec-card{padding:24px}
  .step{padding:18px}
}

/* roulang page: category4 */
:root{
  --brand:#7B5CFF;
  --brand-2:#B44CFF;
  --orange:#FF6B3D;
  --lime:#C9F24D;
  --ink:#17131F;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --border:#E7E2DA;
  --t1:#1D1A26;
  --t2:#5B5568;
  --t3:#8A8496;
  --grad:linear-gradient(120deg,#7B5CFF 0%,#B44CFF 42%,#FF6B3D 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --sh:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.16);
  --sh-hover:0 20px 44px -16px rgba(23,19,31,.24);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(123,92,255,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s var(--ease),height .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px -18px rgba(23,19,31,.45)}
.header-inner{display:flex;align-items:center;gap:28px;height:78px}
.site-header.is-stuck .header-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-weight:700;font-size:19px;
  box-shadow:0 8px 18px -10px rgba(123,92,255,.85);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1;min-width:0}
.chip{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--t2);
  background:rgba(255,255,255,.75);
  border:1px solid var(--border);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{background:rgba(123,92,255,.08);color:var(--brand);border-color:rgba(123,92,255,.3)}
.chip.is-active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 10px 22px -14px rgba(123,92,255,.95);
}
.chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:-11px;transform:translateX(-50%);
  width:26px;height:3px;border-radius:3px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:14px;
  font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(123,92,255,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 34px -16px rgba(123,92,255,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(123,92,255,.08);transform:translateY(-2px)}
.btn-ghost-white{border:1.5px solid rgba(255,255,255,.85);color:#fff}
.btn-ghost-white:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:12px}
.btn-disabled{opacity:.4;pointer-events:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;position:relative;transition:.25s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:.25s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  padding:18px 24px 26px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:13px 4px;font-size:15.5px;color:var(--t2);
  border-bottom:1px solid var(--border);
}
.mobile-drawer a.is-active{color:var(--brand);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:18px}

/* ---------- breadcrumb ---------- */
.crumb{padding:26px 0 6px;font-size:13.5px;color:var(--t3)}
.crumb a{color:var(--t3);transition:color .2s}
.crumb a:hover{color:var(--brand)}
.crumb .sep{margin:0 8px;color:#C9C3D2}
.crumb strong{color:var(--t2);font-weight:500}

/* ---------- hero ---------- */
.hero{padding:22px 0 74px}
.hero-card{
  position:relative;overflow:hidden;
  border-radius:28px;
  border:1px solid var(--border);
  background:
    linear-gradient(112deg,rgba(250,247,242,.96) 0%,rgba(250,247,242,.9) 46%,rgba(123,92,255,.16) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat,
    var(--grad);
  box-shadow:var(--sh);
  padding:52px 0;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.85);
  border:1px solid rgba(123,92,255,.28);
  color:var(--brand);font-size:13px;font-weight:600;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad)}
.hero h1{
  font-size:clamp(28px,4vw,48px);
  line-height:1.28;font-weight:700;letter-spacing:-.5px;
  margin:20px 0 16px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16.5px;color:var(--t2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t2)}
.hero-facts li::before{
  content:"";width:16px;height:16px;border-radius:5px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(123,92,255,.9),rgba(255,107,61,.85));
  mask:radial-gradient(circle at 50% 50%,transparent 34%,#000 36%);
  -webkit-mask:radial-gradient(circle at 50% 50%,transparent 34%,#000 36%);
}
.hero-media{
  position:relative;border-radius:var(--r-lg);
  background:var(--ink);
  padding:18px;
  box-shadow:0 30px 60px -30px rgba(23,19,31,.7);
}
.hero-media::before{
  content:"";position:absolute;inset:-1px;border-radius:26px;
  padding:1px;background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.hero-media img{border-radius:18px;aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-media .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.badge-grad{background:var(--grad);color:#fff}
.badge-soft{background:rgba(123,92,255,.1);color:#5B3FD6;border:1px solid rgba(123,92,255,.24)}
.badge-lime{background:var(--lime);color:#2C3A05}
.badge-dark{background:rgba(255,255,255,.12);color:#E9E5F3;border:1px solid rgba(255,255,255,.2)}

/* ---------- section base ---------- */
.section{padding:76px 0}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:720px;margin-bottom:42px}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;
  padding-left:16px;position:relative;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:4px;background:var(--grad);
}
.section-head p{color:var(--t2);font-size:15.5px}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 24px;position:relative;overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.metric::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
  opacity:0;transition:opacity .25s var(--ease);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.3)}
.metric:hover::before{opacity:1}
.metric .value{
  font-size:38px;font-weight:700;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric .label{margin-top:8px;font-size:14.5px;color:var(--t2)}
.metric .foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.trend{display:flex;align-items:flex-end;gap:3px;height:22px}
.trend i{width:5px;border-radius:3px;background:rgba(123,92,255,.22);display:block}
.trend i.on{background:var(--grad)}

/* ---------- guide layout ---------- */
.guide-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start}
.toc{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px 20px;box-shadow:var(--sh);
}
.toc-title{font-size:13px;font-weight:700;color:var(--t3);letter-spacing:1.4px;margin-bottom:14px}
.toc nav{display:flex;flex-direction:column;gap:2px}
.toc a{
  position:relative;display:block;
  padding:10px 12px 10px 16px;border-radius:10px;
  font-size:14.5px;color:var(--t2);
  transition:background .2s var(--ease),color .2s var(--ease),padding .2s var(--ease);
}
.toc a::before{
  content:"";position:absolute;left:4px;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:transparent;transition:background .2s var(--ease);
}
.toc a:hover{background:rgba(123,92,255,.07);color:var(--brand)}
.toc a.is-current{background:rgba(123,92,255,.1);color:var(--brand);font-weight:600}
.toc a.is-current::before{background:var(--grad)}
.toc-note{
  margin-top:20px;padding-top:18px;border-top:1px dashed var(--border);
  font-size:13px;color:var(--t3);line-height:1.7;
}

.guide-stack{display:flex;flex-direction:column;gap:26px}
.guide-card{
  position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:32px 34px;box-shadow:var(--sh);
  scroll-margin-top:110px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.guide-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;border-radius:24px 24px 0 0;
  background:var(--grad);opacity:.9;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(123,92,255,.28)}
.guide-card h3{font-size:20px;font-weight:700;line-height:1.45;margin:8px 0 14px}
.guide-card p{color:var(--t2);font-size:15.5px;margin-bottom:14px}
.guide-card .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.point-list{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.point-list li{position:relative;padding-left:20px;color:var(--t2);font-size:15px}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--grad);
}
.guide-figure{margin:20px 0 6px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--border)}
.guide-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.guide-figure figcaption{font-size:13px;color:var(--t3);padding:10px 14px;background:#fff;border-top:1px solid var(--border)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:18px}
.mini-card{
  background:#FAF8FF;border:1px solid rgba(123,92,255,.18);border-radius:var(--r-md);
  padding:20px 22px;
}
.mini-card h4{font-size:15.5px;font-weight:700;margin-bottom:8px}
.mini-card p{font-size:14.5px;color:var(--t2);margin:0}
.mini-card .kicker{font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:.6px;display:block;margin-bottom:6px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:32fr 68fr;gap:48px;align-items:start}
.faq-side h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;
  padding-left:16px;position:relative;margin-bottom:14px;
}
.faq-side h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:4px;background:var(--grad);
}
.faq-side p{color:var(--t2);font-size:15.5px;margin-bottom:22px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  padding:4px 24px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(123,92,255,.32)}
.faq-item[open]{box-shadow:var(--sh)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{
  flex-shrink:0;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .24s var(--ease);
  margin-top:-4px;
}
.faq-item[open] .faq-ico{transform:rotate(-135deg);margin-top:2px}
.faq-body{padding:0 0 20px;color:var(--t2);font-size:15px;line-height:1.85}

/* ---------- cta ---------- */
.cta-band{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:28px;background:var(--grad);color:#fff;
  padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;
  box-shadow:0 30px 60px -28px rgba(123,92,255,.75);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-card h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;line-height:1.4;margin-bottom:10px}
.cta-card p{font-size:15px;color:rgba(255,255,255,.9);max-width:620px}
.cta-card .btn{position:relative;z-index:2;background:#fff;color:#5B3FD6;flex-shrink:0}
.cta-card .btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(23,19,31,.6)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#A79FB5;padding:64px 0 28px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-mark{box-shadow:none}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.8;max-width:340px;color:#A79FB5}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px}
.footer-col a{color:#A79FB5;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8A8496;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
  .guide-layout{grid-template-columns:230px minmax(0,1fr);gap:34px}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-card{padding:40px 0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .guide-layout{grid-template-columns:1fr;gap:26px}
  .toc{position:static;padding:16px 14px;overflow-x:auto}
  .toc-title{display:none}
  .toc nav{flex-direction:row;gap:8px}
  .toc a{white-space:nowrap;padding:8px 14px;border:1px solid var(--border);border-radius:999px}
  .toc a::before{display:none}
  .toc a.is-current{background:var(--grad);color:#fff;border-color:transparent}
  .toc-note{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:38px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero{padding:16px 0 56px}
  .guide-card{padding:26px 22px}
  .split{grid-template-columns:1fr}
  .metric .value{font-size:32px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:15.5px}
  .header-inner{height:68px;gap:14px}
  .hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr;gap:16px}
  .faq-item{padding:2px 18px}
  .faq-item summary{font-size:15.5px}
  .cta-card{border-radius:22px;padding:30px 22px}
  .cta-card .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}