/* roulang page: index */
:root{
  --brand:#6D28D9;
  --brand-deep:#3B1178;
  --brand-ink:#120A2A;
  --aurora:#22D3EE;
  --aurora-deep:#0891B2;
  --star:#FFA23A;
  --bg:#F6F4FF;
  --surface:#FFFFFF;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8B85A0;
  --line:rgba(109,40,217,.10);
  --grad:linear-gradient(120deg,#4C1D95 0%,#6D28D9 52%,#06B6D4 100%);
  --dark:linear-gradient(135deg,#120A2A 0%,#3B1178 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-btn:12px;
  --sh1:0 2px 8px rgba(59,17,120,.06);
  --sh2:0 8px 24px rgba(59,17,120,.08);
  --sh3:0 16px 40px rgba(59,17,120,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,opacity .25s ease;}
a:hover{color:var(--brand-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--aurora);
  outline-offset:2px;
  border-radius:6px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea{font-family:inherit;font-size:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:clamp(64px,9vw,120px) 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--brand);
  background:rgba(109,40,217,.08);
  border:1px solid var(--line);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
}
h2.section-title{
  font-size:clamp(1.75rem,3vw,2.25rem);
  line-height:1.28;
  font-weight:700;
  position:relative;
  padding-left:18px;
  margin-bottom:16px;
}
h2.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:5px;height:1.05em;
  border-radius:3px;
  background:var(--grad);
}
.section-head.center h2.section-title{padding-left:0;}
.section-head.center h2.section-title::before{display:none;}
.section-sub{color:var(--text-2);font-size:1rem;max-width:720px;}
.section-head.center .section-sub{margin:0 auto;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:.9375rem;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:var(--sh2);
  background-size:140% 140%;
  background-position:0% 50%;
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh3);background-position:100% 50%;}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh1);}
.btn-outline{
  background:#fff;
  color:var(--brand);
  border:1px solid var(--brand);
}
.btn-outline:hover{background:rgba(109,40,217,.06);color:var(--brand-deep);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.08);
  color:#fff;
  border:1px solid rgba(255,255,255,.35);
}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:.875rem;}
.btn-lg{min-height:54px;padding:0 32px;font-size:1rem;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:var(--sh1);}

/* 徽章 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:999px;
  padding:5px 12px;
  font-size:.75rem;
  letter-spacing:.06em;
  background:rgba(109,40,217,.08);
  color:var(--brand);
  border:1px solid var(--line);
}
.badge-cyan{color:var(--aurora-deep);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.22);}
.badge-dark{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
}
.stat-badge{
  display:flex;
  flex-direction:column;
  gap:2px;
  border-radius:999px;
  padding:10px 18px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  min-width:132px;
}
.stat-badge b{font-size:1.25rem;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-badge b em{font-style:normal;color:var(--star);}
.stat-badge span{font-size:.75rem;color:rgba(255,255,255,.72);letter-spacing:.06em;}
.stat-inline{
  display:flex;align-items:baseline;gap:6px;
}
.stat-inline b{font-size:1.25rem;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;}
.stat-inline span{font-size:.75rem;color:var(--text-2);}

/* 导航 */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  height:72px;
  z-index:100;
  background:rgba(255,255,255,.10);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 8px 32px rgba(18,10,42,.18);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh2);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:#fff;
}
.site-header.is-stuck .logo{color:var(--text);}
.logo-mark{
  width:36px;height:36px;
  border-radius:11px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh2);
  flex-shrink:0;
}
.logo-mark svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round;}
.logo-text{font-size:1.0625rem;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.logo-text i{font-style:normal;color:var(--aurora);}
.site-header.is-stuck .logo-text i{color:var(--brand);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:10px;
  font-size:.9375rem;
  color:rgba(255,255,255,.86);
  transition:color .25s ease,background .25s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.site-header.is-stuck .nav-link{color:var(--text-2);}
.site-header.is-stuck .nav-link:hover{color:var(--brand);background:rgba(109,40,217,.06);}
.site-header.is-stuck .nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.28);
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:#fff;stroke-width:1.5;fill:none;stroke-linecap:round;}
.site-header.is-stuck .nav-toggle{border-color:var(--line);}
.site-header.is-stuck .nav-toggle svg{stroke:var(--text);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,10,42,.5);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(84vw,340px);
  background:#fff;
  border-radius:24px 0 0 24px;
  padding:24px 22px 32px;
  transform:translateX(105%);
  transition:transform .32s cubic-bezier(.22,.61,.36,1);
  z-index:120;
  overflow-y:auto;
  box-shadow:var(--sh3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-size:.9375rem;font-weight:700;color:var(--text);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer-close svg{width:18px;height:18px;stroke:var(--text);stroke-width:1.5;fill:none;stroke-linecap:round;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 14px;
  border-radius:12px;color:var(--text);font-size:.9375rem;
}
.drawer-link:hover{background:rgba(109,40,217,.06);color:var(--brand);}
.drawer-link.is-active{background:rgba(109,40,217,.08);color:var(--brand);font-weight:600;}
.drawer .btn{width:100%;}

/* Hero */
.hero{
  position:relative;
  min-height:clamp(560px,72vh,760px);
  display:flex;
  align-items:center;
  padding:132px 0 96px;
  overflow:hidden;
  background:var(--brand-ink);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.42;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(18,10,42,.94) 0%,rgba(59,17,120,.86) 48%,rgba(6,182,212,.42) 100%);
}
.hero-stars{
  position:absolute;inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 24%,rgba(255,255,255,.34) 50%,transparent 51%),
    radial-gradient(1px 1px at 38% 68%,rgba(255,255,255,.28) 50%,transparent 51%),
    radial-gradient(2px 2px at 62% 18%,rgba(255,255,255,.30) 50%,transparent 51%),
    radial-gradient(1px 1px at 78% 52%,rgba(255,255,255,.26) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 88% 80%,rgba(255,255,255,.22) 50%,transparent 51%),
    radial-gradient(1px 1px at 26% 88%,rgba(255,255,255,.20) 50%,transparent 51%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:32px;
  align-items:center;
}
.hero-copy{grid-column:span 7;color:#fff;}
.hero h1{
  font-size:clamp(2.25rem,4.4vw,3.25rem);
  line-height:1.2;
  font-weight:700;
  margin:18px 0 18px;
}
.hero h1 span{color:var(--aurora);}
.hero-lead{
  font-size:1.125rem;
  line-height:1.8;
  color:rgba(255,255,255,.84);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 36px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-visual{grid-column:span 5;position:relative;}
.hero-card{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  box-shadow:var(--sh3);
  border:1px solid rgba(255,255,255,.18);
  aspect-ratio:16/11;
  background:var(--dark);
}
.hero-card img{width:100%;height:100%;object-fit:cover;}
.hero-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,10,42,.10) 0%,rgba(18,10,42,.62) 100%);
}
.hero-card-tag{
  position:absolute;
  left:18px;bottom:18px;right:18px;
  z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  color:#fff;
}
.hero-card-tag strong{font-size:.9375rem;font-weight:600;}
.hero-card-tag small{font-size:.75rem;color:rgba(255,255,255,.72);letter-spacing:.06em;}

/* 价值主张 */
.value-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.value-main{
  grid-column:span 6;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.value-main:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.value-main-img{
  position:relative;
  aspect-ratio:16/9;
  background:var(--dark);
}
.value-main-img img{width:100%;height:100%;object-fit:cover;}
.value-main-img::after{content:"";position:absolute;inset:0;background:rgba(59,17,120,.28);}
.value-main-body{padding:28px;}
.value-side{grid-column:span 6;display:grid;gap:24px;}
.value-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:28px;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(109,40,217,.28);}
.icon-badge{
  width:48px;height:48px;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(109,40,217,.08);
  border:1px solid var(--line);
  margin-bottom:18px;
}
.icon-badge svg{width:22px;height:22px;stroke:var(--brand);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;}
h3{font-size:clamp(1.15rem,1.8vw,1.375rem);line-height:1.4;font-weight:600;margin-bottom:10px;}
.card-text{color:var(--text-2);font-size:.9375rem;line-height:1.8;}

/* 功能分组 */
.feature-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;
}
.feature-card{
  grid-column:span 6;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  padding:28px;
  box-shadow:var(--sh1);
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.feature-card::before{
  content:"";position:absolute;left:28px;right:28px;top:0;height:3px;border-radius:0 0 3px 3px;background:var(--grad);
}
.feature-card .icon-badge{margin-top:6px;}
.point-list{margin-top:16px;display:grid;gap:10px;}
.point-list li{
  position:relative;padding-left:18px;
  color:var(--text-2);font-size:.9375rem;line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.68em;
  width:6px;height:6px;border-radius:50%;
  background:var(--grad);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:20px;font-size:.9375rem;font-weight:600;color:var(--brand);
}
.text-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease;}
.text-link:hover svg{transform:translateX(3px);}
.mini-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:24px;}
.mini-card{
  grid-column:span 4;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:26px;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(109,40,217,.28);}
.mini-card .icon-badge{width:42px;height:42px;border-radius:12px;margin-bottom:14px;}
.mini-card h3{font-size:1.0625rem;}

/* 场景 */
.scene-row{
  display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;
  padding:34px 0;
}
.scene-row + .scene-row{border-top:1px solid var(--line);}
.scene-text{grid-column:span 5;}
.scene-media{grid-column:span 7;}
.scene-row.reverse .scene-text{grid-column:span 5;order:2;}
.scene-row.reverse .scene-media{grid-column:span 7;order:1;}
.scene-media{
  position:relative;border-radius:24px;overflow:hidden;
  aspect-ratio:4/3;background:var(--dark);box-shadow:var(--sh2);
}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-media::after{content:"";position:absolute;inset:0;background:rgba(59,17,120,.26);}
.scene-text .badge{margin-bottom:14px;}
.scene-text h3{margin-bottom:12px;}
.scene-text .stat-inline{margin-top:18px;}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.case-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:24px;overflow:hidden;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.case-main{grid-column:span 8;}
.case-side{grid-column:span 4;}
.case-media{position:relative;aspect-ratio:16/9;background:var(--dark);}
.case-side .case-media{aspect-ratio:4/3;}
.case-media img{width:100%;height:100%;object-fit:cover;}
.case-media::after{content:"";position:absolute;inset:0;background:rgba(18,10,42,.32);}
.case-media .stat-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(18,10,42,.62);
  backdrop-filter:blur(6px);
}
.case-body{padding:26px;}
.case-meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:16px;font-size:.8125rem;color:var(--text-3);}
.case-meta span{display:inline-flex;align-items:center;gap:6px;}
.case-meta b{color:var(--brand-deep);font-weight:600;font-variant-numeric:tabular-nums;}
.case-side .case-body{padding:22px;}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start;}
.price-card{
  grid-column:span 4;
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  padding:32px 28px;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.price-card.featured{
  transform:translateY(-16px);
  box-shadow:var(--sh3);
  border:1px solid transparent;
  background:
    linear-gradient(var(--surface),var(--surface)) padding-box,
    var(--grad) border-box;
}
.price-card.featured:hover{transform:translateY(-20px);}
.price-tag{
  position:absolute;top:-12px;right:24px;
  background:var(--star);color:#3B1178;
  font-size:.75rem;font-weight:700;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
  box-shadow:var(--sh1);
}
.price-name{font-size:1.0625rem;font-weight:700;margin-bottom:6px;}
.price-desc{font-size:.8125rem;color:var(--text-3);min-height:44px;}
.price-num{
  display:flex;align-items:baseline;gap:8px;
  margin:18px 0 8px;
  font-variant-numeric:tabular-nums;
}
.price-num strong{font-size:2.25rem;font-weight:700;line-height:1;color:var(--brand-deep);}
.price-num span{font-size:.875rem;color:var(--text-2);}
.price-list{display:grid;gap:10px;margin:22px 0 26px;}
.price-list li{position:relative;padding-left:24px;font-size:.9375rem;color:var(--text-2);}
.price-list li::before{
  content:"";position:absolute;left:0;top:.42em;
  width:14px;height:14px;border-radius:50%;
  background:rgba(109,40,217,.10);
}
.price-list li::after{
  content:"";position:absolute;left:4.5px;top:calc(.42em + 4px);
  width:5px;height:5px;border-radius:50%;background:var(--brand);
}
.price-list li.no{color:var(--text-3);}
.price-list li.no::before{background:rgba(139,133,160,.14);}
.price-list li.no::after{background:var(--text-3);}
.price-card .btn{width:100%;}
.price-note{text-align:center;font-size:.75rem;color:var(--text-3);margin-top:28px;}

/* 最新信息 */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-bottom:40px;
}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(109,40,217,.28);}
.news-card-link{display:block;color:inherit;}
.news-card-link:hover{color:inherit;}
.news-cover{
  position:relative;aspect-ratio:16/9;background:var(--grad);overflow:hidden;
}
.news-cover img{width:100%;height:100%;object-fit:cover;}
.news-cover::after{content:"";position:absolute;inset:0;background:rgba(59,17,120,.22);}
.news-cover-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
}
.news-cover-fallback svg{width:38px;height:38px;stroke:rgba(255,255,255,.72);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.news-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--brand);
  font-size:.75rem;letter-spacing:.06em;
  padding:4px 10px;border-radius:999px;
}
.news-body{padding:22px;}
.news-title{
  font-size:1.0625rem;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  color:var(--text-2);font-size:.875rem;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--text-3);
}
.news-foot svg{width:16px;height:16px;stroke:var(--brand);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease;}
.news-card:hover .news-foot svg{transform:translateX(3px);}
.news-empty{
  grid-column:1/-1;
  min-height:220px;
  border:1px dashed rgba(109,40,217,.32);
  border-radius:24px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:rgba(255,255,255,.6);
  color:var(--text-2);
}
.news-empty svg{width:32px;height:32px;stroke:var(--brand);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;}
.faq-intro{grid-column:span 4;}
.faq-list{grid-column:span 8;display:grid;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(109,40,217,.32);box-shadow:var(--sh1);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  padding:0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:.9688rem;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:rgba(109,40,217,.08);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .25s ease;
}
.faq-icon svg{width:14px;height:14px;stroke:var(--brand);stroke-width:1.8;fill:none;stroke-linecap:round;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{
  padding:0 22px 20px 22px;
  border-left:3px solid transparent;
  border-image:var(--grad) 1;
  color:var(--text-2);font-size:.9375rem;line-height:1.8;
}
.faq-item[open] .faq-body{
  border-top:1px solid var(--line);
  padding-top:16px;
  margin:0 22px 20px;
  padding-left:0;padding-right:0;
  border-left:3px solid var(--brand);
}
.faq-intro h2{margin-bottom:14px;}

/* 底部 CTA */
.cta-section{padding:0 0 clamp(64px,9vw,110px);}
.cta-banner{
  position:relative;
  border-radius:28px;
  padding:40px;
  background:var(--dark);
  overflow:hidden;
  box-shadow:var(--sh3);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 30%,rgba(255,255,255,.28) 50%,transparent 51%),
    radial-gradient(1px 1px at 46% 72%,rgba(255,255,255,.22) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 72% 24%,rgba(255,255,255,.24) 50%,transparent 51%),
    radial-gradient(1px 1px at 88% 62%,rgba(255,255,255,.20) 50%,transparent 51%);
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center;
}
.cta-copy{grid-column:span 7;color:#fff;}
.cta-copy h2{
  font-size:clamp(1.6rem,2.6vw,2.125rem);
  line-height:1.3;font-weight:700;margin-bottom:12px;padding:0;
}
.cta-copy h2::before{display:none;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:1rem;max-width:520px;margin-bottom:24px;}
.cta-form{grid-column:span 5;}
.form-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.20);
  border-radius:20px;
  padding:24px;
  backdrop-filter:blur(8px);
}
.form-card label{display:block;font-size:.8125rem;color:rgba(255,255,255,.78);margin-bottom:8px;letter-spacing:.06em;}
.form-row{display:grid;gap:14px;}
.form-card input{
  width:100%;height:48px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.10);
  color:#fff;
  padding:0 14px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.form-card input::placeholder{color:rgba(255,255,255,.52);}
.form-card input:focus{
  outline:none;
  border-color:var(--aurora);
  background:rgba(255,255,255,.16);
  box-shadow:0 0 0 3px rgba(34,211,238,.22);
}
.form-hint{font-size:.75rem;color:rgba(255,255,255,.56);margin-top:12px;}

/* 页脚 */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:32px;
}
.footer-brand{grid-column:span 4;}
.footer-col{grid-column:span 2.66;}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.footer-logo .logo-mark{width:34px;height:34px;}
.footer-brand p{font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.68);max-width:320px;}
.footer-title{font-size:.875rem;color:#fff;letter-spacing:.06em;margin-bottom:16px;font-weight:600;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:.875rem;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-qr{
  width:120px;height:120px;border-radius:16px;background:#fff;
  display:flex;align-items:center;justify-content:center;margin-top:16px;
}
.footer-qr svg{width:72px;height:72px;stroke:var(--brand-deep);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:rgba(255,255,255,.56);
}
.footer-bottom span{display:inline-flex;align-items:center;gap:8px;}

/* 响应式 */
@media (max-width:1279px){
  .container{max-width:1080px;}
  .news-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:120px 0 80px;}
  .hero-copy{grid-column:span 12;}
  .hero-visual{grid-column:span 12;}
  .hero-card{aspect-ratio:16/9;}
  .value-main{grid-column:span 12;}
  .value-side{grid-column:span 12;}
  .feature-card{grid-column:span 12;}
  .mini-card{grid-column:span 6;}
  .scene-row,.scene-row.reverse{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .scene-text,.scene-media,.scene-row.reverse .scene-text,.scene-row.reverse .scene-media{grid-column:span 12;order:0;}
  .case-main,.case-side{grid-column:span 12;}
  .price-card{grid-column:span 4;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-intro{grid-column:span 12;}
  .faq-list{grid-column:span 12;}
  .cta-copy{grid-column:span 12;}
  .cta-form{grid-column:span 12;}
  .footer-brand{grid-column:span 12;}
  .footer-col{grid-column:span 6;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{min-height:480px;padding:108px 0 64px;}
  .hero h1{font-size:clamp(1.85rem,7vw,2.25rem);}
  .hero-lead{font-size:1rem;}
  .hero-stats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;}
  .hero-stats::-webkit-scrollbar{height:4px;}
  .hero-stats::-webkit-scrollbar-thumb{background:rgba(109,40,217,.5);border-radius:4px;}
  .stat-badge{flex:0 0 auto;}
  .mini-card{grid-column:span 12;}
  .price-grid{grid-template-columns:1fr;}
  .price-card{grid-column:span 12;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
  .news-grid{grid-template-columns:1fr;}
  .news-head{align-items:flex-start;}
  .cta-banner{padding:26px;border-radius:24px;}
  .footer-col{grid-column:span 12;}
  .case-body,.value-main-body,.feature-card,.mini-card{padding:20px;}
  .news-body{padding:18px;}
  h2.section-title{font-size:1.6rem;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .nav-actions .btn{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: article */
:root{
  --brand:#6D28D9;
  --brand-deep:#3B1178;
  --brand-ink:#120A2A;
  --aurora:#22D3EE;
  --aurora-deep:#0891B2;
  --star:#FFA23A;
  --bg:#F6F4FF;
  --surface:#FFFFFF;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8B85A0;
  --line:rgba(109,40,217,.10);
  --grad:linear-gradient(120deg,#4C1D95 0%,#6D28D9 52%,#06B6D4 100%);
  --shadow-1:0 2px 8px rgba(59,17,120,.06);
  --shadow-2:0 8px 24px rgba(59,17,120,.08);
  --shadow-3:0 16px 40px rgba(59,17,120,.12);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --section-pad:clamp(64px,9vw,120px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand-deep)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--aurora);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
::selection{background:rgba(109,40,217,.18)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:.9375rem;font-weight:600;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background-image:var(--grad);background-size:140% 100%;background-position:0 0;color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{color:#fff;background-position:100% 0;transform:translateY(-1px);box-shadow:var(--shadow-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-secondary{background:#fff;color:var(--brand);border:1px solid rgba(109,40,217,.34)}
.btn-secondary:hover{background:rgba(109,40,217,.06);color:var(--brand-deep);border-color:rgba(109,40,217,.55)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.6)}
.btn-sm{height:40px;padding:0 18px;font-size:.875rem}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  font-size:.75rem;letter-spacing:.06em;font-weight:600;
}
.badge-brand{background:rgba(109,40,217,.08);color:var(--brand);border:1px solid rgba(109,40,217,.18)}
.badge-aurora{background:rgba(34,211,238,.12);color:var(--aurora-deep);border:1px solid rgba(8,145,178,.22)}
.badge-dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22)}
.badge-star{background:rgba(255,162,58,.14);color:#B4630B;border:1px solid rgba(255,162,58,.34)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:72px;
  display:flex;align-items:center;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-2);
}
.header-inner{display:flex;align-items:center;gap:32px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.0625rem;font-weight:700;letter-spacing:.01em}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background-image:var(--grad);
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand .logo-text{color:rgba(255,255,255,.94);transition:color .3s ease}
.site-header.is-stuck .brand .logo-text{color:var(--text)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;padding:6px 2px;font-size:.9375rem;
  color:rgba(255,255,255,.86);transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background-image:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.site-header.is-stuck .nav-link{color:var(--text-2)}
.site-header.is-stuck .nav-link:hover,.site-header.is-stuck .nav-link.is-active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:14px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.28);
}
.site-header.is-stuck .menu-toggle{border-color:var(--line)}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
.site-header .menu-toggle{color:#fff}
.site-header.is-stuck .menu-toggle{color:var(--text)}
.drawer-mask{
  position:fixed;inset:0;z-index:110;background:rgba(18,10,42,.48);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(330px,86vw);padding:28px 24px;
  background:#fff;border-radius:24px 0 0 24px;
  box-shadow:var(--shadow-3);overflow-y:auto;
  transform:translateX(102%);transition:transform .3s ease;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:.875rem;font-weight:700;color:var(--text-2);letter-spacing:.06em}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:var(--text);stroke-width:1.5;stroke-linecap:round}
.mobile-drawer .nav-link{
  display:flex;align-items:center;height:48px;color:var(--text-2);
  font-size:1rem;border-bottom:1px solid var(--line);
}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-link.is-active{color:var(--brand);font-weight:600}
.mobile-drawer .btn{margin-top:22px}
body.is-locked{overflow:hidden}

/* ---------- 文章头部 ---------- */
body.page-article{padding-top:72px}
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:44px 0 104px;
  background-color:var(--brand-ink);
  background-image:linear-gradient(115deg,rgba(18,10,42,.95) 0%,rgba(59,17,120,.9) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 26%,rgba(255,255,255,.5),transparent),
    radial-gradient(1.4px 1.4px at 27% 70%,rgba(255,255,255,.38),transparent),
    radial-gradient(2px 2px at 63% 20%,rgba(255,255,255,.32),transparent),
    radial-gradient(1.5px 1.5px at 84% 54%,rgba(255,255,255,.42),transparent),
    radial-gradient(1.4px 1.4px at 45% 86%,rgba(255,255,255,.28),transparent);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .current{color:rgba(255,255,255,.62)}
.article-hero h1{
  font-size:clamp(2rem,4vw,2.75rem);line-height:1.22;font-weight:700;
  color:#fff;max-width:900px;margin:18px 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:rgba(255,255,255,.72)}
.meta-row .meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.42);display:inline-block}
.meta-row .num{color:#fff}

/* ---------- 正文区 ---------- */
.article-main{padding-bottom:clamp(56px,8vw,96px)}
.article-wrap{max-width:888px;margin:0 auto;padding:0 24px}
.cover-figure{
  position:relative;margin:-60px 0 40px;aspect-ratio:16/9;
  border-radius:var(--radius-lg);overflow:hidden;
  background-image:var(--grad);
  box-shadow:var(--shadow-3);
}
.cover-figure img{width:100%;height:100%;object-fit:cover}
.cover-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(59,17,120,.06) 0%,rgba(18,10,42,.28) 100%);
}
.article-card{
  background:var(--surface);border-radius:var(--radius-lg);
  padding:44px 40px;box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:760px;margin:0 auto}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(1.3rem,2.2vw,1.6rem);line-height:1.44;font-weight:700;
  margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:20px;border-radius:2px;background-image:var(--grad);
}
.article-body h3{font-size:1.15rem;line-height:1.5;font-weight:600;margin:1.6em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.3em}
.article-body li{position:relative;padding-left:20px;margin-bottom:.55em}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background-image:var(--grad);
}
.article-body ol{counter-reset:step}
.article-body ol li{padding-left:42px;counter-increment:step}
.article-body ol li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:.28em;width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;border-radius:10px;
  background-image:var(--grad);color:#fff;font-size:.75rem;font-weight:700;
}
.article-body blockquote{
  margin:0 0 1.4em;padding:16px 20px;
  background:rgba(109,40,217,.05);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{font-weight:600;color:var(--brand-deep)}
.article-body img{border-radius:16px;margin:1.3em auto}
.article-body figure{margin:1.3em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body strong{font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:36px 24px;text-align:center;
  border:1px dashed rgba(109,40,217,.32);border-radius:var(--radius-md);
  background:rgba(109,40,217,.03);
}
.empty-state svg{width:36px;height:36px;fill:none;stroke:var(--brand);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{color:var(--text-2);font-size:.9375rem}
.article-foot{max-width:760px;margin:32px auto 0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:.8125rem;
  transition:border-color .25s ease,color .25s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.foot-divider{height:1px;background:var(--line);margin-bottom:24px}
.foot-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-pad) 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-title{position:relative;font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.3;font-weight:700;padding-left:16px}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:24px;border-radius:2px;background-image:var(--grad);
}
.section-sub{color:var(--text-2);font-size:.9375rem;margin-top:10px;max-width:640px}
.more-link{font-size:.9375rem;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.more-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease}
.more-link:hover svg{transform:translateX(3px)}

/* ---------- 相关阅读 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.list-card{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.list-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.list-card .lc-body{display:flex;flex-direction:column;gap:10px}
.list-card .lc-title{font-size:1.0625rem;font-weight:600;line-height:1.5;color:var(--text)}
.list-card:hover .lc-title{color:var(--brand-deep)}
.list-card .lc-meta{font-size:.8125rem;color:var(--text-3);display:flex;align-items:center;gap:10px}
.list-card .lc-arrow{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand);transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.list-card:hover .lc-arrow{background-image:var(--grad);color:#fff;border-color:transparent}
.list-card .lc-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-note{color:var(--text-2);font-size:.9375rem;margin-top:14px;max-width:340px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(109,40,217,.42);box-shadow:var(--shadow-1)}
.faq-item summary{
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;font-size:1rem;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background-image:var(--grad);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{
  position:relative;padding:0 22px 20px 22px;color:var(--text-2);font-size:.9375rem;
}
.faq-body::before{
  content:"";position:absolute;left:0;top:2px;bottom:20px;width:3px;
  background-image:var(--grad);border-radius:0 3px 3px 0;
}
.faq-item[open] .faq-body{border-top:1px solid var(--line);padding-top:18px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:44px 40px;color:#fff;
  background-color:var(--brand-ink);
  background-image:linear-gradient(118deg,#120A2A 0%,#3B1178 100%);
  display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 16% 30%,rgba(255,255,255,.4),transparent),
    radial-gradient(1.4px 1.4px at 72% 22%,rgba(255,255,255,.3),transparent),
    radial-gradient(1.6px 1.6px at 86% 74%,rgba(255,255,255,.34),transparent);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.35;font-weight:700;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.76);font-size:.9375rem;max-width:520px}
.cta-form{display:flex;flex-direction:column;gap:12px}
.cta-form label{font-size:.8125rem;color:rgba(255,255,255,.7);letter-spacing:.06em}
.field{
  width:100%;height:48px;padding:0 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.35);
  color:var(--text);font-size:.9375rem;
}
.field::placeholder{color:var(--text-3)}
.field:focus{outline:none;border-color:var(--aurora);box-shadow:0 0 0 3px rgba(34,211,238,.28)}
.form-tip{font-size:.75rem;color:rgba(255,255,255,.6);line-height:1.7}
.form-success{font-size:.8125rem;color:#7DF0DC;display:none;align-items:center;gap:6px}
.form-success.is-visible{display:inline-flex}
.form-success svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-pad);
  background-color:var(--brand-ink);
  background-image:linear-gradient(118deg,#120A2A 0%,#3B1178 100%);
  color:#fff;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:1.0625rem;font-weight:700;margin-bottom:16px}
.footer-brand p{color:rgba(255,255,255,.68);font-size:.875rem;line-height:1.8;max-width:380px}
.footer-title{font-size:.875rem;font-weight:600;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,.72);font-size:.875rem}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-qr{
  width:120px;height:120px;margin-top:20px;border-radius:16px;background:#fff;
  display:flex;align-items:center;justify-content:center;
}
.footer-qr svg{width:64px;height:64px;fill:none;stroke:var(--brand);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 32px;
  font-size:.8125rem;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:span 2}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .article-hero{padding:32px 0 88px}
  .article-card{padding:24px 20px;border-radius:20px}
  .article-wrap{padding:0 20px}
  .cover-figure{margin:-52px 0 28px;border-radius:20px}
  .article-body{font-size:16px;line-height:1.85}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .footer-brand{grid-column:auto}
  .cta-band{border-radius:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-wrap{padding:0 16px}
  .btn{width:100%;padding:0 18px}
  .header-actions .btn{width:auto}
  .foot-actions .btn{width:100%}
  .article-hero h1{font-size:1.75rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#6D28D9;
  --brand-deep:#3B1178;
  --brand-ink:#120A2A;
  --aurora:#22D3EE;
  --aurora-deep:#0891B2;
  --star:#FFA23A;
  --bg:#F6F4FF;
  --surface:#FFFFFF;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8B85A0;
  --line:rgba(109,40,217,.10);
  --grad:linear-gradient(120deg,#4C1D95 0%,#6D28D9 52%,#06B6D4 100%);
  --sh1:0 2px 8px rgba(59,17,120,.06);
  --sh2:0 8px 24px rgba(59,17,120,.08);
  --sh3:0 16px 40px rgba(59,17,120,.12);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.05em}
h1,h2,h3{margin:0;font-weight:700;color:var(--text)}
h1{font-size:clamp(2.25rem,4.4vw,3.25rem);line-height:1.2}
h2{font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.28}
h3{font-size:clamp(1.15rem,1.8vw,1.375rem);line-height:1.4;font-weight:600}
::selection{background:rgba(109,40,217,.18)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:6px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh2);
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad);display:grid;place-items:center;flex:none}
.logo-mark svg{width:18px;height:18px;fill:#fff}
.logo-text{font-size:1.0625rem;font-weight:700;letter-spacing:.01em;color:#fff;transition:color .3s ease}
.site-header.is-stuck .logo-text{color:var(--text)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:.9375rem;color:rgba(255,255,255,.86);
  transition:color .25s ease,background-color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:600}
.site-header.is-stuck .nav-link{color:var(--text-2)}
.site-header.is-stuck .nav-link:hover{color:var(--brand);background:rgba(109,40,217,.06)}
.site-header.is-stuck .nav-link.is-active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  border-radius:var(--r-sm);font-size:.875rem;font-weight:600;
  border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent;
  transition:background-color .25s ease,color .25s ease,background-image .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.header-cta:hover{background:rgba(255,255,255,.14);color:#fff}
.site-header.is-stuck .header-cta{background-image:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--sh2)}
.site-header.is-stuck .header-cta:hover{box-shadow:var(--sh3);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);cursor:pointer;
  transition:background-color .25s ease,border-color .25s ease;
}
.nav-toggle svg{width:22px;height:22px;stroke:#fff;stroke-width:1.6;fill:none;stroke-linecap:round}
.site-header.is-stuck .nav-toggle{background:rgba(109,40,217,.06);border-color:var(--line)}
.site-header.is-stuck .nav-toggle svg{stroke:var(--text)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,10,42,.46);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,340px);background:#fff;
  border-top-left-radius:24px;border-bottom-left-radius:24px;box-shadow:var(--sh3);
  transform:translateX(103%);transition:transform .32s ease;z-index:120;
  padding:88px 22px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:.75rem;letter-spacing:.06em;color:var(--text-3);margin-bottom:10px}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:12px;
  font-size:.9375rem;color:var(--text-2);transition:background-color .2s ease,color .2s ease;
}
.drawer-link:hover{background:rgba(109,40,217,.06);color:var(--brand)}
.drawer-link.is-active{color:var(--brand);font-weight:600;background:rgba(109,40,217,.07)}
.drawer-cta{
  display:flex;align-items:center;justify-content:center;height:48px;margin-top:18px;
  border-radius:12px;background-image:var(--grad);color:#fff;font-weight:600;font-size:.9375rem;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:.9375rem;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,background-position .3s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{
  background-image:var(--grad);background-size:150% 150%;background-position:0% 50%;
  color:#fff;box-shadow:var(--sh2);
}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:var(--sh3);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh1)}
.btn-outline{background:#fff;border-color:rgba(109,40,217,.35);color:var(--brand)}
.btn-outline:hover{background:rgba(109,40,217,.06);color:var(--brand)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{height:40px;padding:0 18px;font-size:.875rem}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:clamp(320px,42vh,380px);
  display:flex;align-items:flex-end;
  padding:132px 0 44px;
  background:var(--brand-ink);
}
.page-hero .hero-layer{
  position:absolute;inset:0;
  background-image:
    linear-gradient(120deg,rgba(18,10,42,.94) 0%,rgba(59,17,120,.88) 54%,rgba(8,145,178,.72) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero .hero-layer::after{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 28%,rgba(255,255,255,.34) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 68% 18%,rgba(255,255,255,.26) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 84% 62%,rgba(34,211,238,.30) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 34% 76%,rgba(255,255,255,.22) 50%,transparent 51%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .2s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:rgba(255,255,255,.96)}
.hero-grid{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap}
.hero-copy{max-width:720px}
.hero-copy h1{color:#fff;font-size:clamp(1.9rem,3.6vw,2.6rem);line-height:1.24}
.hero-copy p{margin:14px 0 0;color:rgba(255,255,255,.82);font-size:1.0625rem;max-width:640px}
.hero-stats{display:flex;gap:12px;flex-wrap:wrap}
.stat-badge{
  display:flex;flex-direction:column;gap:2px;min-width:118px;
  padding:12px 18px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.stat-badge strong{font-size:1.25rem;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-badge strong em{font-style:normal;color:var(--star)}
.stat-badge span{font-size:.75rem;color:rgba(255,255,255,.72);letter-spacing:.04em}

/* ============ 筛选胶囊 ============ */
.filter-bar{background:var(--bg);padding:26px 0 0}
.filter-scroll{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.filter-scroll::-webkit-scrollbar{height:6px}
.filter-scroll::-webkit-scrollbar-thumb{background:rgba(109,40,217,.28);border-radius:999px}
.chip{
  flex:none;display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;
  font-size:.875rem;background:#fff;border:1px solid var(--line);color:var(--text-2);
  transition:border-color .25s ease,color .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.chip:hover{border-color:rgba(109,40,217,.42);color:var(--brand);box-shadow:var(--sh1)}
.chip.is-active{background-image:var(--grad);border-color:transparent;color:#fff;font-weight:600;box-shadow:var(--sh2)}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,7.5vw,96px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:5px;border-radius:4px;background:var(--grad);
}
.section-head p{margin:12px 0 0;color:var(--text-2);font-size:1rem}
.eyebrow{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:.75rem;letter-spacing:.06em;color:var(--brand);
  background:rgba(109,40,217,.08);border:1px solid rgba(109,40,217,.16);margin-bottom:14px;
}

/* ============ 准备区块 ============ */
.prep-grid{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center}
.figure-43{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);background:#EDE9FE;
}
.figure-43 img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure-43::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(59,17,120,.10),rgba(18,10,42,.34));
}
.prep-list{display:grid;gap:16px}
.prep-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background-image .25s ease;
}
.prep-item:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.prep-icon{
  width:40px;height:40px;border-radius:12px;flex:none;display:grid;place-items:center;
  background:rgba(109,40,217,.09);
}
.prep-icon svg{width:20px;height:20px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.prep-item h3{margin-bottom:4px}
.prep-item p{margin:0;color:var(--text-2);font-size:.9375rem}

/* ============ 步骤时间轴 ============ */
.steps-wrap{position:relative}
.steps{position:relative;padding-left:68px}
.steps::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;
  border-radius:2px;background:var(--grad);opacity:.34;
}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 28px;margin-bottom:20px;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background-image .25s ease,background-origin .25s,background-clip .25s;
}
.step:hover{
  transform:translateY(-4px);box-shadow:var(--sh3);
  border-color:transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.step:last-child{margin-bottom:0}
.step-num{
  position:absolute;left:-68px;top:22px;width:40px;height:40px;border-radius:12px;
  background-image:var(--grad);color:#fff;font-weight:700;font-size:.9375rem;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(109,40,217,.28);
}
.step h3{margin-bottom:6px}
.step p{margin:0;color:var(--text-2);font-size:.9375rem;line-height:1.78}
.step-hint{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:6px 14px;border-radius:999px;
  font-size:.75rem;letter-spacing:.04em;color:var(--aurora-deep);
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
}
.step-hint svg{width:14px;height:14px;fill:none;stroke:var(--aurora-deep);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ 提示对照卡 ============ */
.tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tip-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background-image .25s ease,background-origin .25s,background-clip .25s;
}
.tip-card:hover{
  transform:translateY(-4px);box-shadow:var(--sh3);border-color:transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.tip-label{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:.75rem;letter-spacing:.06em;color:var(--brand);background:rgba(109,40,217,.08);
  border:1px solid rgba(109,40,217,.16);margin-bottom:14px;
}
.tip-card h3{font-size:1.0625rem;margin-bottom:8px}
.tip-card p{margin:0;color:var(--text-2);font-size:.9375rem;line-height:1.78}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-side h2{position:relative;padding-left:18px}
.faq-side h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:5px;border-radius:4px;background:var(--grad)}
.faq-side p{margin:14px 0 0;color:var(--text-2);font-size:.9375rem}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(109,40,217,.42);box-shadow:var(--sh1)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 22px;font-weight:600;font-size:1rem;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background-image:var(--grad);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{position:relative;padding:0 22px 20px 24px;border-top:1px solid var(--line);color:var(--text-2);font-size:.9375rem;padding-top:16px}
.faq-answer::before{
  content:"";position:absolute;left:0;top:16px;bottom:18px;width:3px;border-radius:0 3px 3px 0;background:var(--grad);
}
.faq-answer p{margin:0}

/* ============ 数据条 ============ */
.metric-bar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 32px;box-shadow:var(--sh2);
}
.metric{display:flex;flex-direction:column;gap:4px}
.metric strong{font-size:1.75rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--brand-deep);line-height:1.2}
.metric strong em{font-style:normal;font-size:1rem;color:var(--brand);margin-left:2px}
.metric span{font-size:.875rem;color:var(--text-2)}
.metric+.metric{border-left:1px solid var(--line);padding-left:20px}

/* ============ CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;border-radius:28px;padding:40px;
  background:linear-gradient(120deg,#120A2A 0%,#3B1178 100%);
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
  box-shadow:var(--sh3);
}
.cta-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 18% 24%,rgba(255,255,255,.30) 50%,transparent 51%),
    radial-gradient(1.3px 1.3px at 62% 72%,rgba(34,211,238,.28) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 88% 34%,rgba(255,255,255,.20) 50%,transparent 51%);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.78);margin:0 0 22px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-form{position:relative;z-index:2;display:grid;gap:14px}
.cta-form label{font-size:.8125rem;color:rgba(255,255,255,.72);letter-spacing:.04em}
.cta-input{
  height:48px;width:100%;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:.9375rem;transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.cta-input::placeholder{color:rgba(255,255,255,.56)}
.cta-input:focus{outline:none;border-color:var(--aurora);background:rgba(255,255,255,.16);box-shadow:0 0 0 3px rgba(34,211,238,.20)}
.cta-note{font-size:.75rem;color:rgba(255,255,255,.56);margin:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-ink);color:#fff;margin-top:clamp(56px,7vw,96px);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand p{color:rgba(255,255,255,.66);font-size:.875rem;line-height:1.8;margin:0;max-width:320px}
.footer-title{font-size:.875rem;font-weight:600;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:.875rem;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-qr{
  width:120px;height:120px;margin-top:18px;border-radius:16px;background:#fff;
  display:grid;place-items:center;
}
.footer-qr svg{width:56px;height:56px;fill:none;stroke:var(--brand-deep);stroke-width:1.5}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  font-size:.8125rem;color:rgba(255,255,255,.58);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1024px){
  .prep-grid{grid-template-columns:1fr;gap:28px}
  .tip-grid{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .cta-banner{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .page-hero{padding-top:118px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero-copy p{font-size:1rem}
  .hero-stats{width:100%;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
  .stat-badge{flex:none}
  .metric-bar{grid-template-columns:1fr;padding:24px}
  .metric+.metric{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:16px}
  .tip-grid{grid-template-columns:1fr}
  .steps{padding-left:52px}
  .steps::before{left:15px}
  .step{padding:20px 22px}
  .step-num{left:-52px;width:32px;height:32px;border-radius:10px;font-size:.8125rem;top:20px}
  .cta-banner{padding:28px 22px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  h2{font-size:1.5rem}
  .hero-copy h1{font-size:1.6rem}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .chip{height:38px;padding:0 16px;font-size:.8125rem}
  .step{padding:18px 18px}
  .faq-item summary{padding:14px 18px;font-size:.9375rem}
  .faq-answer{padding:14px 18px 18px 20px}
}

/* roulang page: category2 */
:root{
  --brand:#6D28D9;
  --brand-deep:#3B1178;
  --brand-ink:#120A2A;
  --aurora:#22D3EE;
  --aurora-deep:#0891B2;
  --star:#FFA23A;
  --bg:#F6F4FF;
  --surface:#FFFFFF;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8B85A0;
  --line:rgba(109,40,217,.10);
  --grad:linear-gradient(120deg,#4C1D95 0%,#6D28D9 52%,#06B6D4 100%);
  --dark-grad:linear-gradient(135deg,#120A2A 0%,#3B1178 100%);
  --sh-1:0 2px 8px rgba(59,17,120,.06);
  --sh-2:0 8px 24px rgba(59,17,120,.08);
  --sh-3:0 16px 40px rgba(59,17,120,.12);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --container:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand-deep);}
a:active{color:var(--brand-deep);}
a:visited{color:var(--brand);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:clamp(56px,7vw,96px) 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.28;position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:4px;background:var(--grad);
}
.section-sub{margin-top:14px;color:var(--text-2);font-size:1rem;line-height:1.85;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  padding:6px 14px;border-radius:999px;font-size:.75rem;letter-spacing:.06em;
  color:var(--brand);background:rgba(109,40,217,.08);border:1px solid rgba(109,40,217,.14);
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;height:72px;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 2px 12px rgba(18,10,42,.14);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;transition:color .3s ease;}
.logo:hover{color:#fff;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--grad);box-shadow:0 4px 14px rgba(109,40,217,.35);
}
.logo-mark svg{width:18px;height:18px;fill:#fff;}
.logo-text{font-size:1.0625rem;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:10px;font-size:.9375rem;
  color:rgba(255,255,255,.86);transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#6D28D9,#22D3EE);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-2);
}
.site-header.is-stuck .logo{color:var(--text);}
.site-header.is-stuck .nav-link{color:var(--text-2);}
.site-header.is-stuck .nav-link:hover,
.site-header.is-stuck .nav-link.is-active{color:var(--brand);}
.site-header.is-stuck .menu-toggle{color:var(--text);border-color:var(--line);background:rgba(109,40,217,.06);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:.9375rem;font-weight:600;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease,background-position .25s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:.875rem;border-radius:10px;}
.btn-primary{background-image:var(--grad);background-size:140% 140%;color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);background-position:8% 0;}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.02);}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.12);}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline{border-color:rgba(109,40,217,.35);color:var(--brand);background:#fff;}
.btn-outline:hover{background:rgba(109,40,217,.06);color:var(--brand-deep);}
.btn-outline:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;}
.btn[disabled]:hover,.btn.is-disabled:hover{transform:none;box-shadow:none;background-position:0 0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  padding:calc(72px + 64px) 0 64px;
  min-height:380px;
  background-image:
    linear-gradient(120deg,rgba(18,10,42,.90) 0%,rgba(59,17,120,.84) 55%,rgba(8,145,178,.74) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.3;
  background-image:
    radial-gradient(circle,rgba(255,255,255,.9) 1px,transparent 1.6px),
    radial-gradient(circle,rgba(255,255,255,.7) 1px,transparent 1.4px);
  background-size:260px 220px,340px 300px;
  background-position:12% 24%,68% 62%;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:40px;align-items:end;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:rgba(255,255,255,.74);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:rgba(255,255,255,.8);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb-current{color:rgba(255,255,255,.96);}
.hero h1{
  font-size:clamp(1.85rem,3.6vw,2.6rem);line-height:1.24;color:#fff;
  max-width:760px;margin-bottom:18px;
}
.hero-sub{color:rgba(255,255,255,.84);font-size:1.0625rem;line-height:1.8;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.badge{
  display:inline-flex;align-items:center;gap:10px;padding:9px 16px;border-radius:999px;
  font-size:.75rem;letter-spacing:.02em;
}
.badge-dark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;backdrop-filter:blur(6px);}
.badge-num{font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--star);line-height:1;}
.badge-unit{font-size:.75rem;color:rgba(255,255,255,.86);}
.badge-light{background:rgba(109,40,217,.08);border:1px solid rgba(109,40,217,.14);color:var(--brand);}
.badge-light .badge-num{color:var(--brand-deep);}
.badge-light .badge-unit{color:var(--text-2);}

/* ---------- 筛选胶囊 ---------- */
.chip-bar{padding:26px 0 0;}
.chip-row{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 14px;scrollbar-width:thin;}
.chip-row::-webkit-scrollbar{height:6px;}
.chip-row::-webkit-scrollbar-thumb{background:rgba(109,40,217,.35);border-radius:999px;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--text-2);font-size:.875rem;transition:border-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.chip.is-active{background-image:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--sh-2);}

/* ---------- 网格与卡片 ---------- */
.grid{display:grid;gap:24px;}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr));}
.col-4{grid-column:span 4;}
.col-6{grid-column:span 6;}
.col-12{grid-column:span 12;}
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background-image .25s ease;
}
.card:hover{
  transform:translateY(-4px);box-shadow:var(--sh-3);border-color:transparent;
  background-image:linear-gradient(var(--surface),var(--surface)),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.card h3{font-size:clamp(1.15rem,1.8vw,1.375rem);line-height:1.4;margin-bottom:12px;}
.card p{color:var(--text-2);font-size:.9375rem;line-height:1.85;}
.feature-card{padding:0;overflow:hidden;border-radius:var(--r-lg);}
.feature-card:hover{transform:translateY(-4px);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--dark-grad);}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,10,42,.14) 0%,rgba(59,17,120,.58) 100%);
}
.card-body{padding:28px;}
.icon-badge{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(109,40,217,.08);border:1px solid rgba(109,40,217,.14);color:var(--brand);
  margin-bottom:18px;
}
.icon-badge svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.points{margin-top:16px;display:grid;gap:10px;}
.points li{position:relative;padding-left:20px;color:var(--text-2);font-size:.9375rem;line-height:1.75;}
.points li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--grad);
}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:.9375rem;font-weight:600;color:var(--brand);}
.card-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s ease;}
.card-link:hover svg{transform:translateX(3px);}
.card-tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:.75rem;letter-spacing:.04em;color:var(--brand);background:rgba(109,40,217,.08);
  border:1px solid rgba(109,40,217,.14);margin-bottom:14px;
}

/* ---------- 对比卡 ---------- */
.compare{
  border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-head,.compare-row{
  display:grid;grid-template-columns:1.2fr 2.1fr 1fr;gap:24px;align-items:center;
  padding:20px 28px;
}
.compare-head{
  background:rgba(109,40,217,.06);font-size:.75rem;letter-spacing:.06em;
  color:var(--text-2);font-weight:600;
}
.compare-row{border-top:1px solid var(--line);font-size:.9375rem;color:var(--text-2);transition:background-color .22s ease;}
.compare-row:hover{background:#FBFAFF;}
.compare-row strong{color:var(--text);font-weight:600;}
.compare-row .fit{
  justify-self:start;padding:5px 12px;border-radius:999px;font-size:.75rem;
  color:var(--aurora-deep);background:rgba(34,211,238,.12);border:1px solid rgba(8,145,178,.20);
}

/* ---------- 准备事项 ---------- */
.prep{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;}
.prep-media{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh-2);background:var(--dark-grad);}
.prep-media img{width:100%;height:100%;object-fit:cover;}
.prep-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(18,10,42,.16) 0%,rgba(59,17,120,.48) 100%);
}
.prep-list{display:grid;gap:16px;margin-top:24px;}
.prep-item{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.prep-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.prep-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background-image:var(--grad);color:#fff;font-size:.8125rem;font-weight:700;
}
.prep-item p{color:var(--text-2);font-size:.9375rem;line-height:1.75;}
.prep-item strong{color:var(--text);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq{
  border-radius:var(--r-md);background:#fff;border:1px solid var(--line);overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq:hover{border-color:rgba(109,40,217,.35);box-shadow:var(--sh-1);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;font-weight:600;font-size:1rem;cursor:pointer;
  list-style:none;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.plus{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform .25s ease;color:var(--brand);}
.plus::before,.plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.plus::before{left:0;top:8px;width:18px;height:2px;}
.plus::after{left:8px;top:0;width:2px;height:18px;}
.faq[open] .plus{transform:rotate(45deg);}
.faq-body{
  position:relative;padding:0 20px 20px 23px;color:var(--text-2);
  font-size:.9375rem;line-height:1.85;
}
.faq-body::before{
  content:"";position:absolute;left:8px;top:2px;bottom:22px;width:3px;border-radius:3px;background:var(--grad);
}
.faq[open] .faq-body{border-bottom:1px solid var(--line);}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 clamp(56px,7vw,96px);}
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:40px;
  background:var(--dark-grad);color:#fff;box-shadow:var(--sh-3);
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:radial-gradient(circle,rgba(255,255,255,.85) 1px,transparent 1.5px);
  background-size:220px 190px;background-position:18% 30%;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:clamp(1.5rem,2.4vw,1.875rem);line-height:1.35;color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.82);font-size:.9375rem;line-height:1.85;max-width:560px;}
.cta-form{
  position:relative;z-index:2;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:20px;padding:22px;
}
.field{display:grid;gap:8px;margin-bottom:14px;}
.field label{font-size:.8125rem;color:rgba(255,255,255,.82);}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:12px;font-size:.9375rem;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.10);color:#fff;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.field input::placeholder{color:rgba(255,255,255,.55);}
.field input:focus{outline:none;border-color:var(--aurora);box-shadow:0 0 0 3px rgba(34,211,238,.24);background:rgba(255,255,255,.14);}
.field input.is-error{border-color:#F87171;box-shadow:0 0 0 3px rgba(248,113,113,.20);}
.field-hint{font-size:.75rem;color:rgba(255,255,255,.62);}
.field-hint.is-error{color:#FCA5A5;}
.cta-form .btn{width:100%;}
.form-success{
  display:none;align-items:center;gap:10px;margin-top:12px;font-size:.8125rem;color:#A5F3FC;
}
.form-success.is-visible{display:flex;}
.form-success svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 页脚 ---------- */
.site-footer{background:#120A2A;color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand p{font-size:.9375rem;line-height:1.85;color:rgba(255,255,255,.72);max-width:420px;}
.footer-title{font-size:.875rem;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:.9375rem;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-qr{
  width:120px;height:120px;margin-top:18px;border-radius:16px;background:#fff;
  display:grid;place-items:center;
}
.footer-qr svg{width:72px;height:72px;fill:none;stroke:#3B1178;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:rgba(255,255,255,.6);
}

/* ---------- 抽屉与遮罩 ---------- */
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;place-items:center;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.10);color:#fff;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease;
}
.menu-toggle:hover{background:rgba(255,255,255,.2);}
.menu-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(18,10,42,.52);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;width:min(320px,86vw);
  background:#fff;border-radius:24px 0 0 24px;padding:24px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(59,17,120,.18);
  transform:translateX(102%);transition:transform .3s ease;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:1rem;font-weight:700;color:var(--text);}
.drawer-close{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);background:#fff;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;}
.drawer-link{
  display:flex;align-items:center;height:48px;font-size:1rem;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand);}
.drawer-link.is-active{color:var(--brand);font-weight:600;}
.drawer .btn{width:100%;margin-top:22px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .menu-toggle{display:grid;}
  .hero-inner{grid-template-columns:1fr;gap:28px;align-items:start;}
  .hero-stats{flex-direction:row;flex-wrap:wrap;}
  .col-4{grid-column:span 6;}
  .compare-head,.compare-row{grid-template-columns:1fr 1.6fr 1fr;gap:16px;}
  .prep{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .card,.card-body{padding:20px;}
  .hero{padding:calc(72px + 40px) 0 48px;min-height:480px;}
  .hero h1{font-size:1.75rem;}
  .hero-sub{font-size:1rem;}
  .col-6,.col-4{grid-column:span 12;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .compare-row .fit{justify-self:start;}
  .chip{padding:9px 15px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-qr{width:104px;height:104px;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:24px;border-radius:22px;}
  .section-head h2{font-size:1.5rem;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --brand:#6D28D9;
  --brand-deep:#3B1178;
  --brand-ink:#120A2A;
  --aurora:#22D3EE;
  --aurora-deep:#0891B2;
  --star:#FFA23A;
  --bg:#F6F4FF;
  --surface:#FFFFFF;
  --text:#1A1526;
  --text-2:#5B5470;
  --text-3:#8B85A0;
  --line:rgba(109,40,217,.10);
  --grad:linear-gradient(120deg,#4C1D95 0%,#6D28D9 52%,#06B6D4 100%);
  --dark:linear-gradient(135deg,#120A2A 0%,#3B1178 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 2px 8px rgba(59,17,120,.06);
  --sh2:0 8px 24px rgba(59,17,120,.08);
  --sh3:0 16px 40px rgba(59,17,120,.12);
  --sec:clamp(64px,9vw,120px);
  --font:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:1rem;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:visited{color:var(--brand);}
a:hover{color:var(--brand-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--aurora);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);}
h1{font-size:clamp(1.9rem,3.6vw,2.75rem);line-height:1.2;}
h2{font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.28;}
h3{font-size:clamp(1.15rem,1.8vw,1.375rem);line-height:1.4;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:1rem;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.06em;font-weight:600;
  color:var(--brand);background:rgba(109,40,217,.08);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;
  width:5px;height:1.05em;border-radius:3px;background:var(--grad);
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:1rem;max-width:760px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.18);
  box-shadow:0 6px 22px rgba(18,10,42,.18);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--sh2);
}
.nav-inner{height:72px;display:flex;align-items:center;gap:28px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.0625rem;letter-spacing:.01em;}
.logo:visited{color:#fff;}
.logo:hover{color:#fff;}
.is-stuck .logo,.is-stuck .logo:visited,.is-stuck .logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 34px;
  background:var(--grad);display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(109,40,217,.35);
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:.9375rem;color:rgba(255,255,255,.86);font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-link:visited{color:rgba(255,255,255,.86);}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10);}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:600;background:rgba(255,255,255,.12);}
.nav-link.is-active::after{transform:scaleX(1);}
.is-stuck .nav-link,.is-stuck .nav-link:visited{color:var(--text-2);}
.is-stuck .nav-link:hover{color:var(--brand);background:rgba(109,40,217,.07);}
.is-stuck .nav-link.is-active{color:var(--brand);background:rgba(109,40,217,.09);}
.nav-cta{
  margin-left:12px;display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-sm);
  font-size:.9375rem;font-weight:600;color:#fff;
  background:var(--grad);box-shadow:var(--sh2);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.nav-cta:visited{color:#fff;}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh3);filter:hue-rotate(-6deg) saturate(1.1);}
.nav-cta:active{transform:translateY(1px);box-shadow:var(--sh1);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.35);
  align-items:center;justify-content:center;margin-left:auto;
}
.is-stuck .nav-toggle{border-color:var(--line);}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;}
.is-stuck .nav-toggle svg{stroke:var(--text);}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:#fff;border-radius:24px 0 0 24px;box-shadow:var(--sh3);
  padding:84px 22px 28px;transform:translateX(104%);transition:transform .3s ease;
  overflow-y:auto;visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text);font-weight:500;
}
.drawer a:hover{background:rgba(109,40,217,.07);color:var(--brand);}
.drawer a.is-active{color:var(--brand);background:rgba(109,40,217,.10);font-weight:600;}
.drawer .drawer-cta{
  margin-top:14px;justify-content:center;color:#fff;background:var(--grad);font-weight:600;
  box-shadow:var(--sh2);
}
.drawer .drawer-cta:hover{color:#fff;}
.drawer-close{
  position:absolute;top:20px;right:18px;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;background:#fff;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:var(--text-2);stroke-width:1.6;stroke-linecap:round;}
body.drawer-open{overflow:hidden;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:.9375rem;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{color:#fff;background:var(--grad);box-shadow:var(--sh2);}
.btn-primary:visited{color:#fff;}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh3);filter:hue-rotate(-6deg) saturate(1.08);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh1);}
.btn-ghost{
  color:#fff;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.06);
}
.btn-ghost:visited{color:#fff;}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.16);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline{color:var(--brand);background:#fff;border:1px solid rgba(109,40,217,.35);}
.btn-outline:visited{color:var(--brand);}
.btn-outline:hover{color:var(--brand-deep);background:rgba(109,40,217,.06);}
.btn-outline:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:var(--sh1);}

/* ---------- 徽章 ---------- */
.badge-dark{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:.8125rem;
}
.badge-dark b{font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--star);}
.badge-light{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(109,40,217,.08);border:1px solid rgba(109,40,217,.14);
  color:var(--brand);font-size:.8125rem;font-weight:600;
}
.badge-light b{font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--aurora-deep);}
.badge-overlay{
  position:absolute;left:16px;top:16px;
  padding:6px 12px;border-radius:999px;font-size:.75rem;font-weight:600;
  color:#fff;background:rgba(18,10,42,.62);border:1px solid rgba(255,255,255,.28);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:360px;padding:132px 0 56px;
  background:var(--dark);
  display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.28;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1.6px 1.6px at 12% 26%,rgba(255,255,255,.34) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 34% 68%,rgba(255,255,255,.28) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 62% 22%,rgba(255,255,255,.30) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 84% 58%,rgba(255,255,255,.26) 50%,transparent 51%),
    linear-gradient(120deg,rgba(76,29,149,.86) 0%,rgba(59,17,120,.80) 55%,rgba(6,182,212,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:rgba(255,255,255,.72);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:visited{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:rgba(255,255,255,.42);}
.crumb .now{color:rgba(255,255,255,.94);}
.page-hero h1{color:#fff;max-width:720px;}
.page-hero .hero-desc{margin-top:16px;max-width:660px;color:rgba(255,255,255,.82);font-size:1rem;}
.hero-badges{display:flex;gap:12px;flex-wrap:wrap;}
.chip-row{
  display:flex;gap:10px;flex-wrap:wrap;
  padding:22px 0 0;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--text-2);font-size:.8125rem;font-weight:500;
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.chip:visited{color:var(--text-2);}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-current{color:#fff;background:var(--grad);border-color:transparent;box-shadow:var(--sh2);}
.chip.is-current:visited{color:#fff;}

/* ---------- 数据摘要条 ---------- */
.summary-bar{
  position:relative;z-index:3;margin-top:-30px;
  background:#fff;border-radius:var(--r-lg);
  box-shadow:var(--sh2);border:1px solid var(--line);
  padding:26px 28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.summary-item{display:flex;flex-direction:column;gap:4px;}
.summary-item .num{
  font-size:1.625rem;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;
}
.summary-item .lbl{font-size:.8125rem;color:var(--text-2);}
.summary-item + .summary-item{border-left:1px solid var(--line);padding-left:20px;}

/* ---------- 场景交替块 ---------- */
.scene-row{
  display:grid;grid-template-columns:repeat(12,1fr);gap:36px;align-items:center;
}
.scene-row + .scene-row{margin-top:clamp(48px,6vw,84px);}
.scene-text{grid-column:span 5;}
.scene-media{grid-column:span 7;}
.scene-row.is-flip .scene-text{grid-column:6 / span 5;order:2;}
.scene-row.is-flip .scene-media{grid-column:1 / span 7;order:1;}
.scene-text h3{margin-bottom:12px;}
.scene-text p{color:var(--text-2);}
.scene-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.scene-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--text-2);}
.dot{flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--grad);margin-top:.72em;}
.scene-text .badge-light{margin-top:20px;}
.media-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh2);background:#241442;
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(59,17,120,.34),rgba(18,10,42,.16));
}
.media-frame .cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:16px 20px;font-size:.8125rem;color:rgba(255,255,255,.86);
  background:linear-gradient(0deg,rgba(18,10,42,.66),rgba(18,10,42,0));
}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{
  background:var(--surface);border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(109,40,217,.35);}
.case-cover{position:relative;}
.case-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.case-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(59,17,120,.30),rgba(18,10,42,.10));
}
.case-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1;}
.case-body h3{font-size:1.125rem;}
.case-meta{display:flex;flex-direction:column;gap:8px;font-size:.875rem;color:var(--text-2);}
.case-meta span{display:flex;gap:8px;align-items:flex-start;}
.case-meta b{color:var(--text);font-weight:600;flex:0 0 4.5em;}
.case-result{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.case-result .score{font-size:1.125rem;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.case-result .score small{font-size:.75rem;color:var(--text-3);font-weight:500;margin-left:4px;}
.case-link{display:inline-flex;align-items:center;gap:6px;font-size:.875rem;font-weight:600;color:var(--brand);}
.case-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease;}
.case-link:hover svg{transform:translateX(3px);}

/* ---------- 横向速查条 ---------- */
.lookup{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);overflow:hidden;
}
.lookup-head,.lookup-row{
  display:grid;grid-template-columns:1.1fr 2fr 1fr;gap:20px;
  padding:18px 28px;align-items:center;
}
.lookup-head{
  background:rgba(109,40,217,.06);
  font-size:.8125rem;font-weight:600;color:var(--brand);letter-spacing:.04em;
}
.lookup-row{border-top:1px solid var(--line);font-size:.9375rem;color:var(--text-2);transition:background .2s ease;}
.lookup-row:hover{background:rgba(109,40,217,.035);}
.lookup-row strong{color:var(--text);font-weight:600;}
.lookup-row .tag{
  justify-self:start;
  padding:5px 12px;border-radius:999px;font-size:.75rem;font-weight:600;
  color:var(--aurora-deep);background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.28);
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:36px;align-items:start;}
.faq-aside{grid-column:span 4;}
.faq-aside h2{position:relative;padding-left:18px;}
.faq-aside h2::before{content:"";position:absolute;left:0;top:.22em;width:5px;height:1.05em;border-radius:3px;background:var(--grad);}
.faq-aside p{margin-top:14px;color:var(--text-2);}
.faq-list{grid-column:span 8;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(109,40,217,.35);box-shadow:var(--sh1);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;font-weight:600;font-size:1rem;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,border-color .25s ease;
}
.faq-item summary .ico svg{width:14px;height:14px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;}
.faq-item[open] summary .ico{transform:rotate(45deg);border-color:rgba(109,40,217,.4);}
.faq-body{
  position:relative;padding:0 22px 18px 22px;color:var(--text-2);font-size:.9375rem;line-height:1.85;
}
.faq-body::before{
  content:"";position:absolute;left:22px;top:2px;width:3px;height:calc(100% - 22px);
  border-radius:3px;background:var(--grad);opacity:0;transition:opacity .25s ease;
}
.faq-item[open] .faq-body::before{opacity:1;}
.faq-item[open] .faq-body{padding-left:38px;}
.faq-body{border-top:1px solid transparent;}
.faq-item[open] .faq-body{border-top-color:var(--line);padding-top:16px;}

/* ---------- CTA ---------- */
.cta-wrap{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--dark);padding:44px;
  box-shadow:var(--sh3);
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1.6px 1.6px at 16% 30%,rgba(255,255,255,.30) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 46% 72%,rgba(255,255,255,.24) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 78% 34%,rgba(255,255,255,.26) 50%,transparent 51%),
    linear-gradient(120deg,rgba(76,29,149,.72),rgba(6,182,212,.28));
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.80);max-width:520px;}
.cta-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}
.form-card{
  background:rgba(255,255,255,.96);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh2);
}
.form-card h3{font-size:1.0625rem;margin-bottom:6px;}
.form-card .hint{font-size:.8125rem;color:var(--text-3);margin-bottom:16px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:.8125rem;color:var(--text-2);margin-bottom:6px;font-weight:500;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FBFAFF;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,40,217,.14);
}
.form-card .btn{width:100%;margin-top:6px;}
.form-note{margin-top:12px;font-size:.75rem;color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:#120A2A;color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:var(--sec);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1.0625rem;margin-bottom:16px;}
.footer-logo .logo-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
.footer-brand p{font-size:.875rem;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-title{font-size:.875rem;color:#fff;font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:.875rem;}
.footer-links a:visited{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-qr{
  margin-top:18px;width:120px;height:120px;border-radius:16px;background:#fff;
  display:flex;align-items:center;justify-content:center;
}
.footer-qr svg{width:74px;height:74px;fill:none;stroke:#3B1178;stroke-width:1.4;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:rgba(255,255,255,.56);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
  .case-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{min-height:340px;padding:120px 0 48px;}
  .summary-bar{grid-template-columns:repeat(2,1fr);gap:18px 0;}
  .summary-item + .summary-item{border-left:0;padding-left:0;}
  .summary-item:nth-child(even){border-left:1px solid var(--line);padding-left:20px;}
  .scene-row{grid-template-columns:1fr;gap:24px;}
  .scene-text,.scene-row.is-flip .scene-text{grid-column:auto;order:1;}
  .scene-media,.scene-row.is-flip .scene-media{grid-column:auto;order:2;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .faq-aside,.faq-list{grid-column:auto;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .lookup-head,.lookup-row{grid-template-columns:1fr 1.6fr .9fr;gap:14px;padding:16px 20px;}
  .lookup-head{display:none;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .case-grid{grid-template-columns:1fr;}
  .page-hero{padding:112px 0 40px;min-height:420px;}
  .cta-wrap{padding:28px;border-radius:22px;}
  .case-body{padding:20px;}
  .summary-bar{padding:20px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .lookup-row{grid-template-columns:1fr;gap:6px;padding:16px 20px;}
  .lookup-row .tag{justify-self:start;}
}
@media (max-width:519px){
  .container{padding:0 18px;}
  .hero-badges{width:100%;}
  .cta-actions .btn,.form-card .btn{width:100%;}
  .summary-bar{grid-template-columns:1fr;}
  .summary-item:nth-child(even){border-left:0;padding-left:0;}
  .summary-item + .summary-item{border-top:1px solid var(--line);padding-top:14px;}
}