/* roulang page: index */
:root{
  --ink:#17142B;
  --ink-2:#5C5878;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E4F6;
  --primary:#5B2BE0;
  --primary-d:#3B1E9E;
  --primary-l:#8C63FF;
  --grad:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 52%,#A64BFF 100%);
  --accent:#12D6A6;
  --accent-l:#6EE7D8;
  --accent-grad:linear-gradient(120deg,#12D6A6 0%,#5FD8FF 100%);
  --warm:#FFB13C;
  --deep-1:#0A0820;
  --deep-2:#170F3A;
  --white-soft:#F3F0FF;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:12px;
  --sh:0 10px 30px rgba(23,15,58,.07);
  --sh-h:0 22px 50px rgba(23,15,58,.14);
  --sect:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary-l);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:992px){.wrap{padding:0 28px;}}
@media(min-width:1400px){.wrap{max-width:1320px;}}

/* ============ 按钮 ============ */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:0;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-grad{
  background:var(--grad);color:#fff;
  box-shadow:0 12px 26px rgba(91,43,224,.28);
}
.btn-grad:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px rgba(91,43,224,.34);}
.btn-grad:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--primary);
  border:1px solid rgba(91,43,224,.45);
}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--primary-d);border-color:var(--primary);}
.btn-light-ghost{
  background:rgba(255,255,255,.08);color:var(--white-soft);
  border:1px solid rgba(255,255,255,.22);
}
.btn-light-ghost:hover{background:rgba(255,255,255,.16);color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  background:none;border:0;padding:0;cursor:pointer;
  position:relative;
}
.btn-text::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;
  background:currentColor;transition:width .25s ease;
}
.btn-text:hover::after{width:100%;}
.btn-text i{transition:transform .25s ease;}
.btn-text:hover i{transform:translateX(4px);}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-head.is-scrolled{box-shadow:0 12px 30px rgba(23,15,58,.10);}
.head-top{
  height:72px;
  display:flex;align-items:center;
  transition:height .25s ease;
}
.site-head.is-scrolled .head-top{height:64px;}
.head-top-in{
  display:flex;align-items:center;gap:20px;width:100%;
}
.brand{
  display:flex;align-items:center;gap:10px;
  color:var(--ink);flex:0 0 auto;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,#1B1146,#3B1E9E);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-name{
  font-size:17px;font-weight:800;white-space:nowrap;
  letter-spacing:-.01em;
}
.head-search{
  display:none;align-items:center;gap:8px;
  height:44px;padding:0 6px 0 18px;
  border-radius:999px;
  background:#F1EFFA;border:1px solid var(--line);
  flex:1 1 auto;max-width:420px;min-width:260px;
  transition:border-color .2s ease,background-color .2s ease;
}
.head-search:focus-within{border-color:var(--primary);background:#fff;}
.head-search i{color:var(--ink-2);font-size:14px;}
.head-search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:14px;height:100%;
}
.head-search input::placeholder{color:var(--ink-2);}
.head-search button{
  height:34px;padding:0 18px;border-radius:999px;border:0;
  background:var(--grad);color:#fff;font-size:13px;font-weight:600;
  cursor:pointer;transition:filter .2s ease;
}
.head-search button:hover{filter:brightness(1.08);}
.head-actions{
  margin-left:auto;display:flex;align-items:center;gap:18px;flex:0 0 auto;
}
.head-actions .btn-pill{height:44px;padding:0 22px;font-size:14px;}
.head-link{
  font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.head-link:hover{color:var(--primary);}
.search-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  cursor:pointer;transition:all .2s ease;
}
.search-toggle:hover{border-color:var(--primary);color:var(--primary);}
.head-nav-wrap{
  position:relative;border-top:1px solid var(--line);
}
.head-nav-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:32px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.98));
  pointer-events:none;
}
.head-nav{
  display:flex;align-items:center;gap:8px;
  height:56px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.head-nav::-webkit-scrollbar{display:none;}
.nav-pill{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  background:transparent;transition:all .2s ease;flex:0 0 auto;
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--primary);}
.nav-pill.active{
  background:var(--grad);color:#fff;
  box-shadow:0 8px 18px rgba(91,43,224,.28);
  transform:translateY(-1px);
}
.mobile-search{
  display:none;padding:12px 0 16px;
}
.mobile-search.open{display:block;}
.mobile-search form{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 6px 0 16px;
  border-radius:999px;background:#F1EFFA;border:1px solid var(--line);
}
.mobile-search input{flex:1 1 auto;border:0;background:transparent;outline:none;font-size:14px;}
.mobile-search button{
  height:34px;padding:0 18px;border-radius:999px;border:0;
  background:var(--grad);color:#fff;font-size:13px;font-weight:600;
}
@media(min-width:992px){
  .head-search{display:flex;}
  .search-toggle{display:none;}
  .mobile-search{display:none !important;}
}
@media(max-width:767px){
  .head-top{height:60px;}
  .site-head.is-scrolled .head-top{height:56px;}
  .brand-mark{width:34px;height:34px;}
  .brand-name{font-size:15px;}
  .head-actions .btn-pill{height:38px;padding:0 16px;font-size:13px;}
  .head-link{display:none;}
  .head-nav{height:48px;}
  .nav-pill{height:34px;padding:0 14px;font-size:13px;}
}

/* ============ 通用板块 ============ */
.sect{padding:var(--sect) 0;}
.sect-tight{padding:64px 0;}
.sect-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:16px;
  margin-bottom:44px;
}
.sect-head h2{font-size:clamp(24px,2.6vw,34px);}
.sect-head .lead{
  color:var(--ink-2);font-size:15px;max-width:640px;margin-top:10px;
}
.sect-head .sect-more{margin-left:auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);
}
.pill-tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(91,43,224,.08);color:var(--primary);
  border:1px solid rgba(91,43,224,.18);
  transition:all .2s ease;
}
.pill-tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);}
.pill-tag.accent{
  background:rgba(18,214,166,.12);color:#0A8F72;
  border-color:rgba(18,214,166,.28);
}
.pill-tag.accent:hover{background:var(--accent);color:#04291F;}
.pill-tag.dark{
  background:rgba(255,255,255,.08);color:var(--white-soft);
  border-color:rgba(255,255,255,.18);
}
.pill-tag.dark:hover{background:rgba(255,255,255,.18);color:#fff;}
.stat-badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.stat-badge b{
  font-size:clamp(20px,2vw,26px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;color:#fff;
}
.stat-badge span{font-size:12.5px;color:rgba(243,240,255,.72);}
.stat-badge.light{
  background:rgba(91,43,224,.07);border-color:rgba(91,43,224,.16);
}
.stat-badge.light b{color:var(--primary);}
.stat-badge.light span{color:var(--ink-2);}
.num{font-variant-numeric:tabular-nums;}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  padding:76px 0 84px;
  background:
    radial-gradient(1.4px 1.4px at 16% 24%,rgba(255,255,255,.6),transparent 62%),
    radial-gradient(1px 1px at 38% 12%,rgba(255,255,255,.42),transparent 62%),
    radial-gradient(1.6px 1.6px at 68% 30%,rgba(255,255,255,.5),transparent 62%),
    radial-gradient(1px 1px at 86% 58%,rgba(140,99,255,.7),transparent 62%),
    radial-gradient(.9px .9px at 28% 76%,rgba(110,231,216,.6),transparent 62%),
    radial-gradient(1.2px 1.2px at 56% 90%,rgba(255,255,255,.34),transparent 62%),
    radial-gradient(1px 1px at 74% 74%,rgba(255,255,255,.3),transparent 62%),
    radial-gradient(1200px 640px at 82% -16%,#2A1763 0%,transparent 64%),
    linear-gradient(158deg,#0A0820 0%,#170F3A 56%,#0F0B2B 100%);
}
.hero::before{
  content:"";position:absolute;
  width:420px;height:420px;left:-140px;top:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(91,43,224,.42),transparent 66%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;
  right:-60px;bottom:-120px;width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(18,214,166,.22),transparent 68%);
  pointer-events:none;
}
.hero-in{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:48px;align-items:center;
}
@media(min-width:992px){
  .hero-in{grid-template-columns:7fr 5fr;gap:56px;}
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.16;font-weight:800;color:#fff;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#6EE7D8,#A64BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:16px;color:rgba(243,240,255,.78);
  max-width:520px;margin-bottom:32px;line-height:1.85;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:12px;
}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  aspect-ratio:16/10;
  background:linear-gradient(150deg,#261A5E,#120C33);
  box-shadow:0 32px 70px rgba(6,3,24,.6);
}
.hero-frame img{
  width:100%;height:100%;object-fit:cover;
  opacity:.94;transition:transform .6s ease;
}
.hero-visual:hover .hero-frame img{transform:scale(1.03);}
.hero-float{
  position:absolute;z-index:3;
  padding:12px 18px;border-radius:var(--r-sm);
  background:rgba(12,8,34,.86);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
}
.hero-float b{
  display:block;font-size:20px;font-weight:800;
  font-variant-numeric:tabular-nums;color:#fff;line-height:1.2;
}
.hero-float span{font-size:12px;color:rgba(243,240,255,.7);}
.hero-float.f1{left:-14px;top:34px;}
.hero-float.f2{right:-10px;bottom:34px;}
.hero-arc{
  position:absolute;right:-40px;top:-30px;
  width:200px;height:200px;border-radius:50%;
  border:2px solid transparent;
  border-top-color:rgba(140,99,255,.7);
  border-right-color:rgba(110,231,216,.42);
  transform:rotate(24deg);
  pointer-events:none;
}
@media(max-width:767px){
  .hero{padding:48px 0 60px;}
  .hero-float.f1{left:8px;top:12px;}
  .hero-float.f2{right:8px;bottom:12px;}
  .hero-arc{display:none;}
}

/* ============ 价值主张 ============ */
.value-grid{
  display:grid;grid-template-columns:1fr;gap:40px;align-items:start;
}
@media(min-width:992px){
  .value-grid{grid-template-columns:5fr 7fr;gap:56px;}
}
.value-list{display:flex;flex-direction:column;gap:24px;margin-top:28px;}
.value-item{display:flex;gap:16px;}
.value-ico{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:rgba(91,43,224,.1);
  color:var(--primary);font-size:16px;
  transition:all .25s ease;
}
.value-item:hover .value-ico{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 22px rgba(91,43,224,.3);
}
.value-item h3{font-size:17px;font-weight:700;margin-bottom:4px;}
.value-item p{color:var(--ink-2);font-size:14.5px;line-height:1.75;}
.panel-dark{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  color:#fff;
  background:
    radial-gradient(1.2px 1.2px at 22% 26%,rgba(255,255,255,.5),transparent 62%),
    radial-gradient(1px 1px at 66% 18%,rgba(255,255,255,.36),transparent 62%),
    radial-gradient(1px 1px at 82% 68%,rgba(110,231,216,.55),transparent 62%),
    radial-gradient(900px 420px at 88% -20%,#2C1867 0%,transparent 64%),
    linear-gradient(158deg,#0F0B2C,#1B1246 62%,#120D33);
  border:1px solid rgba(255,255,255,.10);
  padding:32px;
}
.panel-dark h3{color:#fff;font-size:20px;margin-bottom:8px;}
.panel-dark .panel-note{color:rgba(243,240,255,.68);font-size:14px;margin-bottom:26px;}
.metric-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:26px;
}
.metric-cell{
  padding:18px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  transition:all .25s ease;
}
.metric-cell:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}
.metric-cell b{
  display:block;font-size:26px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#6EE7D8,#A64BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-cell span{font-size:13px;color:rgba(243,240,255,.7);}
.panel-bar{
  display:flex;flex-direction:column;gap:14px;
}
.bar-row{display:flex;align-items:center;gap:12px;font-size:13.5px;color:rgba(243,240,255,.76);}
.bar-row .bar-label{width:76px;flex:0 0 auto;}
.bar-track{
  flex:1 1 auto;height:8px;border-radius:999px;
  background:rgba(255,255,255,.1);overflow:hidden;
}
.bar-fill{height:100%;border-radius:999px;background:var(--accent-grad);}
.bar-fill.v2{background:linear-gradient(120deg,#A64BFF,#5B2BE0);}
.bar-fill.v3{background:linear-gradient(120deg,#FFB13C,#FF8A3C);}

/* ============ 功能分组 ============ */
.feat-grid{
  display:grid;grid-template-columns:1fr;gap:22px;
}
@media(min-width:768px){
  .feat-grid{grid-template-columns:repeat(2,1fr);}
}
@media(min-width:992px){
  .feat-grid{grid-template-columns:repeat(12,1fr);}
  .feat-main{grid-column:span 6;grid-row:span 2;}
  .feat-sm{grid-column:span 3;}
}
.card-base{
  background:var(--card);border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-base:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(91,43,224,.24);}
.feat-main{
  padding:28px;display:flex;flex-direction:column;
}
.feat-main .feat-img{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;
  margin-bottom:24px;background:#EDEAF8;
}
.feat-main .feat-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feat-main:hover .feat-img img{transform:scale(1.04);}
.feat-main h3{font-size:22px;margin-bottom:10px;}
.feat-main > p{color:var(--ink-2);font-size:14.5px;margin-bottom:20px;}
.feat-points{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.feat-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-2);
}
.feat-points li i{
  color:var(--accent);font-size:13px;margin-top:6px;flex:0 0 auto;
}
.feat-sm{padding:26px 24px;display:flex;flex-direction:column;}
.feat-sm .ico-block{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;color:var(--primary);
  background:rgba(91,43,224,.09);
  margin-bottom:18px;
  transition:all .25s ease;
}
.feat-sm:hover .ico-block{
  background:var(--grad);color:#fff;
  box-shadow:0 12px 24px rgba(91,43,224,.3);
}
.feat-sm h4{font-size:17px;font-weight:700;margin-bottom:8px;}
.feat-sm p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:18px;}
.feat-sm .btn-text{margin-top:auto;font-size:14px;}

/* ============ 场景交替 ============ */
.scene-row{
  display:grid;grid-template-columns:1fr;gap:36px;align-items:center;
  margin-bottom:72px;
}
.scene-row:last-child{margin-bottom:0;}
@media(min-width:992px){
  .scene-row{grid-template-columns:6fr 6fr;gap:64px;}
  .scene-row.reverse .scene-media{order:2;}
  .scene-row.reverse .scene-body{order:1;}
}
.scene-media{position:relative;}
.scene-media .scene-img{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;
  background:#EDEAF8;border:1px solid var(--line);
  box-shadow:var(--sh);
}
.scene-media .scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.scene-media:hover .scene-img img{transform:scale(1.04);}
.scene-media .scene-plate{
  position:absolute;left:-24px;bottom:-24px;
  width:132px;height:132px;border-radius:var(--r-md);
  background:linear-gradient(140deg,rgba(91,43,224,.14),rgba(110,231,216,.16));
  z-index:-1;
}
.scene-row.reverse .scene-media .scene-plate{left:auto;right:-24px;}
.scene-body h3{font-size:clamp(21px,2.2vw,27px);margin:16px 0 14px;}
.scene-body > p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.scene-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.scene-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-2);
}
.scene-list li::before{
  content:"";width:7px;height:7px;border-radius:2px;flex:0 0 auto;
  margin-top:9px;
  background:var(--grad);
}

/* ============ 案例/口碑 ============ */
.case-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:768px){.case-grid{grid-template-columns:repeat(2,1fr);}}
.case-card{
  padding:28px;border-radius:var(--r-lg);
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.case-card.dark{
  background:linear-gradient(158deg,#130E36,#241960 70%,#150F3C);
  border-color:rgba(255,255,255,.1);
  color:var(--white-soft);
  box-shadow:0 22px 50px rgba(10,8,32,.36);
}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px;}
.case-card.dark .pill-tag{
  background:rgba(255,255,255,.08);color:#EFEBFF;border-color:rgba(255,255,255,.18);
}
.case-quote{
  font-size:15.5px;line-height:1.85;color:var(--ink);
  margin-bottom:20px;
}
.case-card.dark .case-quote{color:rgba(243,240,255,.86);}
.case-metric{
  display:flex;align-items:baseline;gap:6px;margin-bottom:18px;
}
.case-metric b{
  font-size:30px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#12D6A6,#5FD8FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.case-card.dark .case-metric b{background:linear-gradient(120deg,#6EE7D8,#FFB13C);-webkit-background-clip:text;background-clip:text;}
.case-metric span{font-size:13px;color:var(--ink-2);}
.case-card.dark .case-metric span{color:rgba(243,240,255,.66);}
.case-src{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
}
.case-card.dark .case-src{border-top-color:rgba(255,255,255,.12);color:rgba(243,240,255,.6);}
.case-src .dot-av{
  width:30px;height:30px;border-radius:50%;flex:0 0 auto;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
}
@media(min-width:992px){
  .case-grid .case-card:nth-child(2),
  .case-grid .case-card:nth-child(4){transform:translateY(32px);}
  .case-grid .case-card:nth-child(2):hover,
  .case-grid .case-card:nth-child(4):hover{transform:translateY(28px);}
}

/* ============ 价格 ============ */
.plan-grid{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:stretch;
}
@media(min-width:768px){.plan-grid{grid-template-columns:repeat(3,1fr);}}
.plan-card{
  position:relative;
  padding:32px 28px;border-radius:var(--r-lg);
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--sh);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.plan-card.featured{
  background:linear-gradient(158deg,#0F0B2C,#1D1250 68%,#120D33);
  border:2px solid transparent;
  background-clip:padding-box;
  color:var(--white-soft);
  transform:translateY(-8px);
  box-shadow:0 26px 60px rgba(10,8,32,.42);
}
.plan-card.featured::before{
  content:"";position:absolute;inset:-2px;border-radius:calc(var(--r-lg) + 2px);
  background:var(--grad);z-index:-1;
}
.plan-badge{
  position:absolute;right:24px;top:-13px;
  height:28px;padding:0 16px;border-radius:999px;
  background:linear-gradient(120deg,#FFB13C,#FF8A3C);
  color:#3A1F00;font-size:12.5px;font-weight:800;
  display:inline-flex;align-items:center;
  box-shadow:0 8px 18px rgba(255,177,60,.32);
}
.plan-card h3{font-size:19px;margin-bottom:8px;}
.plan-card.featured h3{color:#fff;}
.plan-desc{font-size:13.5px;color:var(--ink-2);margin-bottom:22px;}
.plan-card.featured .plan-desc{color:rgba(243,240,255,.68);}
.plan-price{
  font-size:15px;font-weight:700;color:var(--primary);
  padding-bottom:20px;margin-bottom:20px;
  border-bottom:1px dashed var(--line);
}
.plan-card.featured .plan-price{
  color:#8EE9D2;border-bottom-color:rgba(255,255,255,.14);
}
.plan-list{display:flex;flex-direction:column;gap:13px;margin-bottom:26px;}
.plan-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--ink-2);
}
.plan-card.featured .plan-list li{color:rgba(243,240,255,.8);}
.plan-list li i{color:var(--accent);font-size:13px;margin-top:6px;flex:0 0 auto;}
.plan-card .btn-pill{width:100%;margin-top:auto;}
.plan-note{
  margin-top:28px;font-size:13.5px;color:var(--ink-2);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:center;
  text-align:center;
}

/* ============ 资讯列表 ============ */
.news-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:992px){
  .news-grid{grid-template-columns:repeat(12,1fr);}
  .news-card{margin:0;}
  .news-card.featured-card{grid-column:span 6;}
  .news-card.small-card{grid-column:span 3;}
}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border-radius:var(--r-lg);
  border:1px solid var(--line);overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  color:inherit;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(91,43,224,.24);color:inherit;}
.news-thumb{
  aspect-ratio:16/9;overflow:hidden;background:#EDEAF8;
}
.news-card.featured-card .news-thumb{aspect-ratio:16/8;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{
  font-size:16.5px;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card.featured-card .news-body h3{font-size:21px;-webkit-line-clamp:2;}
.news-body p{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-2);
  padding-top:16px;border-top:1px solid var(--line);
}
.news-meta time{font-variant-numeric:tabular-nums;}
.news-meta .sep{width:4px;height:4px;border-radius:50%;background:var(--line);}
.news-empty{
  text-align:center;padding:64px 24px;
  background:var(--card);border-radius:var(--r-lg);
  border:1px dashed var(--line);
  grid-column:1/-1;
}
.news-empty .empty-ico{
  width:72px;height:72px;border-radius:22px;margin:0 auto 20px;
  background:rgba(91,43,224,.08);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.news-empty p{color:var(--ink-2);margin-bottom:20px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:992px){
  .faq-wrap{grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
}
.faq-aside h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:16px;}
.faq-aside p{color:var(--ink-2);font-size:15px;margin-bottom:24px;}
.faq-aside .faq-contact{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 20px;border-radius:var(--r-sm);
  background:rgba(18,214,166,.09);
  border-left:3px solid var(--accent);
  font-size:14px;color:var(--ink-2);
}
.faq-aside .faq-contact i{color:#0A8F72;font-size:16px;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;}
.faq-item{
  background:var(--card) !important;
  border-radius:var(--r-md) !important;
  border:1px solid var(--line) !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(91,43,224,.26) !important;box-shadow:var(--sh);}
.accordion-button{
  font-size:16px;font-weight:700;color:var(--ink);
  padding:22px 24px;background:transparent !important;
  box-shadow:none !important;
  border-radius:var(--r-md) !important;
}
.accordion-button::after{display:none;}
.accordion-button:not(.collapsed){color:var(--primary);}
.faq-item .q-mark{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;
  border-radius:50%;background:rgba(91,43,224,.09);
  color:var(--primary);font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed) .q-mark{
  background:var(--grad);color:#fff;transform:rotate(135deg);
}
.accordion-body{
  padding:0 24px 24px;
  font-size:14.5px;color:var(--ink-2);line-height:1.85;
}
.accordion-item:last-of-type{border-bottom:1px solid var(--line) !important;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:56px 40px;
  color:#fff;
  background:
    radial-gradient(1.3px 1.3px at 18% 30%,rgba(255,255,255,.5),transparent 62%),
    radial-gradient(1px 1px at 62% 22%,rgba(255,255,255,.36),transparent 62%),
    radial-gradient(1px 1px at 84% 74%,rgba(110,231,216,.5),transparent 62%),
    linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 54%,#A64BFF 100%);
  box-shadow:0 30px 70px rgba(59,30,158,.34);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 68%);
}
.cta-in{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-in h2{font-size:clamp(22px,2.5vw,32px);color:#fff;margin-bottom:10px;}
.cta-in p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-white{
  background:#fff;color:var(--primary-d);
  box-shadow:0 14px 30px rgba(9,4,32,.28);
}
.cta-band .btn-white:hover{background:#fff;color:var(--primary-d);transform:translateY(-2px);}
.cta-foot{
  position:relative;z-index:2;
  margin-top:28px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.22);
  display:flex;flex-wrap:wrap;gap:20px;
  font-size:14px;color:rgba(255,255,255,.86);
}
.cta-foot span{display:inline-flex;align-items:center;gap:8px;}
.cta-foot i{color:#8EE9D2;}

/* ============ 页脚 ============ */
.site-foot{
  position:relative;
  margin-top:var(--sect);
  color:rgba(243,240,255,.74);
  background:
    radial-gradient(1.1px 1.1px at 14% 22%,rgba(255,255,255,.36),transparent 62%),
    radial-gradient(1px 1px at 48% 14%,rgba(255,255,255,.26),transparent 62%),
    radial-gradient(1px 1px at 78% 46%,rgba(110,231,216,.4),transparent 62%),
    linear-gradient(170deg,#0A0820,#150E38 70%,#0B0824);
  padding-top:72px;
}
.site-foot::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(140,99,255,.85),rgba(18,214,166,.75),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
  padding-bottom:48px;
}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:992px){.foot-grid{grid-template-columns:4fr 2.6fr 2.6fr 3.6fr;gap:48px;}}
.foot-brand .brand{color:#fff;margin-bottom:18px;}
.foot-brand .brand:hover{color:#fff;}
.foot-brand .brand-mark{background:linear-gradient(140deg,#241760,#3B1E9E);}
.foot-brand p{font-size:14px;line-height:1.85;max-width:320px;}
.foot-col h4{
  font-size:15px;color:#fff;margin-bottom:20px;font-weight:700;
}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{
  font-size:14px;color:rgba(243,240,255,.7);
}
.foot-col a:hover{color:#8EE9D2;}
.foot-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(243,240,255,.72);
}
.foot-contact i{color:#8EE9D2;margin-top:5px;font-size:14px;}
.foot-sub{margin-top:22px;}
.foot-sub label{display:block;font-size:13px;margin-bottom:10px;color:rgba(243,240,255,.62);}
.foot-sub form{
  display:flex;align-items:center;gap:8px;
  height:48px;padding:0 6px 0 18px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  transition:border-color .2s ease;
}
.foot-sub form:focus-within{border-color:var(--accent);}
.foot-sub input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  color:#fff;font-size:14px;height:100%;min-width:0;
}
.foot-sub input::placeholder{color:rgba(243,240,255,.42);}
.foot-sub button{
  height:36px;padding:0 20px;border-radius:999px;border:0;
  background:var(--accent-grad);color:#04291F;
  font-size:13px;font-weight:700;cursor:pointer;
  transition:filter .2s ease,transform .2s ease;
}
.foot-sub button:hover{filter:brightness(1.06);transform:translateY(-1px);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(243,240,255,.56);
}
.foot-bottom .foot-links{display:flex;flex-wrap:wrap;gap:18px;}
.foot-bottom a{color:rgba(243,240,255,.6);}
.foot-bottom a:hover{color:#8EE9D2;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式补充 ============ */
@media(max-width:991px){
  :root{--sect:64px;}
  .sect-head{margin-bottom:32px;}
  .panel-dark{padding:26px;}
  .cta-band{padding:40px 24px;}
}
@media(max-width:575px){
  :root{--sect:48px;}
  .wrap{padding:0 18px;}
  .hero h1{font-size:28px;}
  .hero-btns .btn-pill{flex:1 1 auto;}
  .metric-grid{grid-template-columns:1fr;}
  .case-grid .case-card{padding:22px;}
  .plan-card.featured{transform:none;}
  .plan-card{padding:26px 22px;}
  .faq-aside .faq-contact{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --ink:#17142B;
  --ink-2:#5C5878;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E4F6;
  --p1:#5B2BE0;
  --p1d:#3B1E9E;
  --p1l:#8C63FF;
  --acc:#12D6A6;
  --acc-l:#6EE7D8;
  --warm:#FFB13C;
  --deep1:#0A0820;
  --deep2:#170F3A;
  --grad:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 55%,#A64BFF 100%);
  --grad-acc:linear-gradient(120deg,#12D6A6 0%,#5FD8FF 100%);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:12px;
  --sh:0 10px 30px rgba(23,15,58,.07);
  --sh-h:0 22px 50px rgba(23,15,58,.14);
  --ease:cubic-bezier(.22,.68,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--p1);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--p1d);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){.wrap{padding:0 28px;}}
@media (min-width:1400px){.wrap{max-width:1320px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-head.scrolled{box-shadow:0 12px 32px rgba(23,15,58,.10);}
.head-top{height:72px;display:flex;align-items:center;border-bottom:1px solid var(--line);transition:height .25s var(--ease);}
.site-head.scrolled .head-top{height:64px;}
.head-top-inner{display:flex;align-items:center;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:var(--grad);box-shadow:0 8px 18px rgba(91,43,224,.28);flex:0 0 auto;}
.brand-name{font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:-.01em;}
.head-search{flex:1 1 auto;max-width:420px;position:relative;display:none;}
@media (min-width:992px){.head-search{display:block;}}
.head-search input{
  width:100%;height:44px;border-radius:999px;border:1px solid var(--line);
  background:#FBFAFF;padding:0 46px 0 18px;font-size:14.5px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.head-search input::placeholder{color:#9A96B4;}
.head-search input:focus{outline:none;border-color:var(--p1);box-shadow:0 0 0 4px rgba(91,43,224,.10);}
.head-search button{
  position:absolute;right:5px;top:5px;width:34px;height:34px;border:0;border-radius:999px;
  background:var(--grad);color:#fff;display:grid;place-items:center;cursor:pointer;font-size:13px;
}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.head-link{font-size:14.5px;color:var(--ink-2);font-weight:600;}
.head-link:hover{color:var(--p1);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:999px;
  background:var(--grad);color:#F3F0FF;font-size:15.5px;font-weight:700;
  box-shadow:0 12px 26px rgba(91,43,224,.26);cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 34px rgba(91,43,224,.32);}
.btn-main:active{transform:translateY(0);}
.btn-main.sm{height:40px;padding:0 18px;font-size:14px;box-shadow:0 8px 18px rgba(91,43,224,.22);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid var(--p1);
  background:transparent;color:var(--p1);font-size:15.5px;font-weight:700;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--p1d);transform:translateY(-2px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--p1);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text i{transition:transform .2s var(--ease);font-size:12px;}
.btn-text:hover i{transform:translateX(4px);}
.btn-text span{background-image:linear-gradient(currentColor,currentColor);background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .25s var(--ease);}
.btn-text:hover span{background-size:100% 1px;}

.head-nav{
  display:flex;align-items:center;gap:8px;height:56px;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 32px),transparent 100%);
  mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 32px),transparent 100%);
}
.head-nav::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--p1);}
.nav-pill.active{background:var(--grad);color:#F3F0FF;transform:translateY(-1px);box-shadow:0 10px 20px rgba(91,43,224,.24);}
.burger{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
}
@media (min-width:992px){.burger{display:none;}}
.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.show{display:block;}
@media (min-width:992px){.mobile-search{display:none !important;}}
@media (max-width:991px){
  .head-top{height:60px;}
  .site-head.scrolled .head-top{height:56px;}
  .head-nav{height:48px;}
  .brand-name{font-size:16px;}
  .head-actions{gap:10px;}
}

/* ---------- hero banner (inner) ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 380px at 12% -10%,rgba(140,99,255,.28),transparent 62%),
    radial-gradient(700px 320px at 88% 8%,rgba(18,214,166,.18),transparent 60%),
    radial-gradient(1.4px 1.4px at 18% 42%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 62% 24%,rgba(255,255,255,.42) 50%,transparent 51%),
    radial-gradient(1px 1px at 82% 62%,rgba(255,255,255,.38) 50%,transparent 51%),
    linear-gradient(150deg,#0A0820 0%,#170F3A 62%,#1C1046 100%);
  color:#F3F0FF;
  padding:44px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:340px;height:340px;border-radius:50%;
  border:2px solid transparent;
  background:linear-gradient(#0000,#0000) padding-box,linear-gradient(140deg,rgba(140,99,255,.75),rgba(18,214,166,.25) 55%,transparent 70%) border-box;
  opacity:.28;pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(243,240,255,.66);margin-bottom:20px;}
.crumb a{color:rgba(243,240,255,.82);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:9px;opacity:.6;}
.crumb .now{color:rgba(243,240,255,.6);}
.page-hero h1{
  font-size:clamp(26px,3.4vw,40px);
  color:#fff;line-height:1.3;letter-spacing:-.01em;
  max-width:940px;position:relative;z-index:1;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;font-size:13.5px;color:rgba(243,240,255,.72);position:relative;z-index:1;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(243,240,255,.42);display:inline-block;}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  color:#F3F0FF;font-size:13px;font-weight:600;
}
.chip.solid{background:var(--grad-acc);border-color:transparent;color:#06131F;}

/* ---------- article layout ---------- */
.section{padding:64px 0;}
@media (min-width:992px){.section{padding:88px 0;}}
.article-shell{
  display:grid;grid-template-columns:1fr;gap:32px;align-items:start;
}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);padding:26px 22px;
}
@media (min-width:768px){.article-card{padding:40px 44px;}}
.article-body{max-width:800px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink);}
.article-body > * + *{margin-top:1.1em;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.4;margin-top:44px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{
  font-size:19px;font-weight:700;margin-top:34px;padding-left:18px;position:relative;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--p1);
}
.article-body a{color:var(--p1);text-decoration:underline;text-underline-offset:3px;}
.article-body ul,.article-body ol{padding-left:1.3em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{line-height:1.8;margin:.35em 0;}
.article-body li::marker{color:var(--p1);}
.article-body blockquote{
  margin:0;padding:16px 20px;border-left:3px solid var(--p1);background:var(--bg);
  border-radius:var(--r-sm);color:var(--ink-2);
}
.article-body img{border-radius:16px;margin:1.3em 0;box-shadow:var(--sh);}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;white-space:nowrap;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body thead th{background:rgba(91,43,224,.07);color:var(--p1d);}
.article-body tbody tr:nth-child(even){background:#FBFAFF;}
.article-body code{background:#F3F1FC;border-radius:6px;padding:2px 6px;font-size:.92em;}

.empty-state{text-align:center;padding:56px 20px;}
.empty-state .icon{
  width:76px;height:76px;border-radius:22px;margin:0 auto 20px;display:grid;place-items:center;
  background:#EDEAF8;color:var(--p1);font-size:28px;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);margin-bottom:22px;}

.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh);padding:22px;
}
.side-card + .side-card{margin-top:20px;}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-card p{font-size:14.5px;color:var(--ink-2);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 13px;border-radius:999px;
  background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.14);color:var(--p1);
  font-size:12.5px;font-weight:700;transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--p1);border-color:var(--p1);color:#fff;}
.side-dark{
  background:radial-gradient(500px 240px at 20% -20%,rgba(140,99,255,.4),transparent 65%),linear-gradient(150deg,#0A0820,#170F3A);
  border:1px solid rgba(255,255,255,.10);color:#F3F0FF;
}
.side-dark h3{color:#fff;}
.side-dark p{color:rgba(243,240,255,.76);}
.side-dark .btn-main{margin-top:14px;width:100%;}

/* ---------- related ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);}
.sec-head p{color:var(--ink-2);font-size:14.5px;margin-top:8px;}
.grid-3{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.grid-3{grid-template-columns:repeat(3,1fr);}}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEAF8;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:20px 22px 24px;}
.rel-body .tag{margin-bottom:12px;}
.rel-body h3{font-size:17.5px;line-height:1.5;margin-bottom:10px;}
.rel-body h3 a{color:var(--ink);}
.rel-body h3 a:hover{color:var(--p1);}
.rel-body p{font-size:14.5px;color:var(--ink-2);}
.rel-meta{margin-top:14px;font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:10px;}

.pager{display:grid;grid-template-columns:1fr;gap:18px;margin-top:32px;}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr;}}
.pager a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh);transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.pager a:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.pager span{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:8px;font-weight:700;letter-spacing:.04em;}
.pager strong{display:block;font-size:16px;color:var(--ink);font-weight:700;line-height:1.5;}

/* ---------- comments ---------- */
.cmt-list{display:grid;gap:16px;margin-bottom:26px;}
.cmt-item{display:flex;gap:14px;background:#FBFAFF;border:1px solid var(--line);border-radius:var(--r-sm);padding:18px;}
.cmt-avatar{width:42px;height:42px;border-radius:50%;background:#EDEAF8;flex:0 0 auto;}
.cmt-lines{flex:1;display:grid;gap:9px;}
.bar{height:10px;border-radius:999px;background:#EDEAF8;}
.bar.w70{width:70%;}
.bar.w45{width:45%;}
.bar.w90{width:90%;}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-2);}
.field label i{color:var(--warm);font-size:10px;margin-left:4px;}
.field input,.field textarea{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  padding:0 14px;font-size:15px;color:var(--ink);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:130px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9A96B4;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--p1);box-shadow:0 0 0 4px rgba(91,43,224,.10);}
.full{grid-column:1 / -1;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:44px 30px;color:#F3F0FF;
  background:
    radial-gradient(620px 260px at 12% 0%,rgba(140,99,255,.45),transparent 62%),
    radial-gradient(520px 240px at 92% 20%,rgba(18,214,166,.24),transparent 60%),
    linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 58%,#A64BFF 100%);
  display:grid;gap:26px;align-items:center;
}
@media (min-width:992px){.cta-band{grid-template-columns:1.4fr auto;padding:52px 48px;}}
.cta-band h2{color:#fff;font-size:clamp(22px,2.5vw,32px);}
.cta-band p{margin-top:12px;color:rgba(243,240,255,.86);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-main{background:#fff;color:var(--p1d);box-shadow:0 14px 30px rgba(10,8,32,.28);}
.cta-band .btn-main:hover{color:var(--p1d);}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- footer ---------- */
.site-foot{
  margin-top:88px;position:relative;color:#F3F0FF;
  background:
    radial-gradient(700px 300px at 8% 0%,rgba(140,99,255,.28),transparent 62%),
    linear-gradient(180deg,#0A0820 0%,#170F3A 100%);
  padding:64px 0 26px;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(140,99,255,.9),rgba(18,214,166,.7),transparent);
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:576px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;}}
.foot-brand .brand-name{color:#fff;}
.foot-brand p{margin-top:16px;font-size:14.5px;color:rgba(243,240,255,.72);line-height:1.85;}
.foot-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.foot-col ul{display:grid;gap:11px;}
.foot-col a{font-size:14.5px;color:rgba(243,240,255,.72);}
.foot-col a:hover{color:#6EE7D8;}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(243,240,255,.72);}
.foot-contact i{color:#6EE7D8;margin-top:5px;font-size:13px;}
.sub-form{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;height:46px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 18px;font-size:14.5px;
}
.sub-form input::placeholder{color:rgba(243,240,255,.5);}
.sub-form input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 4px rgba(18,214,166,.18);}
.sub-form button{
  height:46px;padding:0 22px;border:0;border-radius:999px;background:var(--grad-acc);
  color:#06131F;font-weight:800;font-size:14.5px;cursor:pointer;transition:filter .2s var(--ease),transform .2s var(--ease);
}
.sub-form button:hover{filter:brightness(1.05);transform:translateY(-2px);}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13.5px;color:rgba(243,240,255,.6);
}
.foot-bottom a{color:rgba(243,240,255,.72);}
.foot-bottom a:hover{color:#6EE7D8;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category1 */
:root{
  --ink:#17142B; --ink2:#5C5878; --bg:#F5F4FB; --card:#FFFFFF; --line:#E7E4F6;
  --brand:#5B2BE0; --brand-d:#3B1E9E; --brand-l:#8C63FF;
  --acc:#12D6A6; --acc-l:#6EE7D8; --warm:#FFB13C;
  --deep1:#0A0820; --deep2:#170F3A; --deep3:#1D1248;
  --grad:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 52%,#A64BFF 100%);
  --grad-acc:linear-gradient(120deg,#12D6A6 0%,#5FD8FF 100%);
  --r-lg:22px; --r-md:18px; --r-sm:12px; --r-pill:999px;
  --sh:0 10px 30px rgba(23,15,58,.07);
  --sh-h:0 22px 50px rgba(23,15,58,.14);
  --wrap:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
button,input,textarea{font:inherit;color:inherit;}
b,strong{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px;}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-head.is-scrolled{box-shadow:0 12px 30px rgba(23,15,58,.11);}
.head-top{display:flex;align-items:center;gap:26px;height:72px;transition:height .22s ease;}
.site-head.is-scrolled .head-top{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;}
.brand-name{
  font-size:19px;font-weight:800;white-space:nowrap;letter-spacing:-.01em;
  background:linear-gradient(90deg,#3B1E9E,#6E3BF0 60%,#A64BFF);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.head-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;height:44px;
  padding:0 8px 0 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.head-search:focus-within{border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(91,43,224,.10);}
.head-search i{color:#9A96B4;font-size:14px;}
.head-search input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;font-size:14.5px;}
.head-search input::placeholder{color:#9A96B4;}
.head-search button{
  flex:0 0 auto;height:32px;padding:0 16px;border:0;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:13.5px;font-weight:700;cursor:pointer;
  transition:filter .18s ease,transform .18s ease;
}
.head-search button:hover{filter:brightness(1.07);transform:translateY(-1px);}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.head-nav{
  display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;-ms-overflow-style:none;
}
.head-nav::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:14.5px;font-weight:600;color:var(--ink2);white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--brand);}
.nav-pill.active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(91,43,224,.28);transform:translateY(-1px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:700;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(91,43,224,.28);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:rgba(91,43,224,.5);color:var(--brand);background:transparent;}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--brand-d);}
.btn-on-dark{border-color:rgba(255,255,255,.38);color:#F3F0FF;background:transparent;}
.btn-on-dark:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;position:relative;
  font-size:14.5px;font-weight:700;color:var(--brand);
}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width .24s ease;}
.text-link:hover::after{width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#F3F0FF;padding:52px 0 76px;
  background:
    radial-gradient(1100px 480px at 80% -12%,rgba(140,99,255,.42),transparent 62%),
    radial-gradient(900px 420px at 6% 110%,rgba(18,214,166,.18),transparent 60%),
    linear-gradient(150deg,#0A0820 0%,#170F3A 58%,#1D1248 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.85;
  background-image:
    radial-gradient(1.4px 1.4px at 10% 26%,rgba(255,255,255,.55),transparent 62%),
    radial-gradient(1px 1px at 24% 68%,rgba(255,255,255,.42),transparent 62%),
    radial-gradient(1.6px 1.6px at 42% 18%,rgba(255,255,255,.35),transparent 62%),
    radial-gradient(1px 1px at 58% 78%,rgba(255,255,255,.40),transparent 62%),
    radial-gradient(1.3px 1.3px at 74% 34%,rgba(255,255,255,.46),transparent 62%),
    radial-gradient(1px 1px at 88% 62%,rgba(255,255,255,.34),transparent 62%),
    radial-gradient(1.5px 1.5px at 94% 16%,rgba(255,255,255,.42),transparent 62%);
  background-repeat:no-repeat;
}
.hero-ring{
  position:absolute;top:-90px;right:-70px;width:300px;height:300px;border-radius:50%;
  border:2px solid rgba(140,99,255,.32);pointer-events:none;
}
.hero-ring::after{content:"";position:absolute;inset:32px;border-radius:50%;border:1px solid rgba(18,214,166,.26);}
.crumb{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(243,240,255,.68);margin-bottom:20px;}
.crumb a{color:rgba(243,240,255,.86);}
.crumb a:hover{color:#6EE7D8;}
.crumb i{font-size:10px;opacity:.6;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.22fr .95fr;gap:52px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  font-size:13px;font-weight:700;color:#6EE7D8;margin-bottom:20px;
}
.page-hero h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.16;letter-spacing:-.01em;}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#8C63FF,#6EE7D8 70%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{margin-top:16px;font-size:17px;color:rgba(243,240,255,.78);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.stat-pill{
  display:inline-flex;align-items:baseline;gap:8px;padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
}
.stat-pill b{font-size:21px;font-weight:800;letter-spacing:-.01em;}
.stat-pill span{font-size:13px;color:rgba(243,240,255,.72);}
.hero-visual{position:relative;}
.hero-figure{
  aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 60px rgba(0,0,0,.38);
  background:#241A53;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.float-badge{
  position:absolute;display:flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(10,8,32,.82);border:1px solid rgba(255,255,255,.16);color:#F3F0FF;
  font-size:13px;backdrop-filter:blur(6px);
}
.float-badge b{font-size:14px;font-weight:800;color:#6EE7D8;}
.float-badge span{color:rgba(243,240,255,.76);}
.fb-1{left:-18px;bottom:44px;}
.fb-2{right:-10px;top:36px;}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0;}
.sec-tight{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.20);
  font-size:13px;font-weight:700;color:var(--brand);margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink2);}

/* ---------- 锚点 + 大卡 ---------- */
.layout{display:grid;grid-template-columns:282px minmax(0,1fr);gap:32px;align-items:start;}
.anchor-card{
  position:sticky;top:150px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh);
}
.anchor-title{font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--ink2);margin-bottom:14px;}
.anchor-list a{
  display:block;padding:11px 14px;border-radius:var(--r-sm);border-left:3px solid transparent;
  font-size:14.5px;font-weight:600;color:var(--ink2);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.anchor-list a:hover{background:rgba(91,43,224,.06);color:var(--brand);}
.anchor-list a.active{background:rgba(91,43,224,.09);color:var(--brand-d);border-left-color:var(--acc);}
.anchor-cta{
  margin-top:22px;padding:20px;border-radius:16px;color:#F3F0FF;
  background:linear-gradient(155deg,#0A0820,#1D1248 70%);
  border:1px solid rgba(255,255,255,.10);
}
.anchor-cta h4{font-size:16px;font-weight:800;margin-bottom:8px;}
.anchor-cta p{font-size:13.5px;color:rgba(243,240,255,.74);line-height:1.75;}
.anchor-cta .btn{margin-top:16px;width:100%;height:42px;font-size:14px;}

.svc-card{
  display:grid;grid-template-columns:300px minmax(0,1fr);gap:30px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh);scroll-margin-top:150px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  margin-bottom:24px;
}
.svc-card:last-child{margin-bottom:0;}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(140,99,255,.35);}
.svc-media{aspect-ratio:3/2;border-radius:var(--r-md);overflow:hidden;background:#EDEAF8;}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.svc-card:hover .svc-media img{transform:scale(1.04);}
.svc-no{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.14em;
  color:var(--warm);margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.svc-body h3{font-size:clamp(20px,2vw,23px);font-weight:700;margin-bottom:12px;}
.svc-body > p{font-size:15.5px;color:var(--ink2);}
.svc-list{margin:16px 0 18px;display:grid;gap:8px;}
.svc-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink2);line-height:1.75;}
.svc-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--grad-acc);
}

/* ---------- 数据带 ---------- */
.band{
  position:relative;overflow:hidden;color:#F3F0FF;padding:62px 0;
  background:radial-gradient(900px 380px at 82% -20%,rgba(140,99,255,.34),transparent 62%),linear-gradient(140deg,#0A0820,#170F3A);
}
.band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.3px 1.3px at 14% 40%,rgba(255,255,255,.42),transparent 62%),
    radial-gradient(1px 1px at 46% 22%,rgba(255,255,255,.32),transparent 62%),
    radial-gradient(1.4px 1.4px at 72% 74%,rgba(255,255,255,.38),transparent 62%),
    radial-gradient(1px 1px at 90% 34%,rgba(255,255,255,.30),transparent 62%);
  background-repeat:no-repeat;
}
.band-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.band-cell{padding:24px;border-radius:var(--r-md);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);}
.band-cell b{
  display:block;font-size:30px;font-weight:800;letter-spacing:-.01em;line-height:1.2;
  background:linear-gradient(120deg,#6EE7D8,#A64BFF);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.band-cell span{display:block;margin-top:8px;font-size:13.5px;color:rgba(243,240,255,.74);}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh);transition:transform .22s ease,box-shadow .22s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.flow-step .num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:12px;background:rgba(91,43,224,.10);color:var(--brand-d);
  font-size:14px;font-weight:800;margin-bottom:14px;
}
.flow-step h4{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--ink2);line-height:1.75;}

/* ---------- 准备清单 ---------- */
.prep{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px;}
.prep li{
  position:relative;padding:16px 18px 16px 44px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);font-size:15px;color:var(--ink2);line-height:1.75;
  transition:border-color .2s ease,transform .2s ease;
}
.prep li:hover{border-color:rgba(140,99,255,.4);transform:translateY(-2px);}
.prep li i{position:absolute;left:18px;top:19px;color:var(--acc);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh);
}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;border:0;padding:20px 24px;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.55;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-d);background:rgba(91,43,224,.04);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--acc);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;font-size:20px;font-weight:700;color:var(--brand);
  display:flex;align-items:center;justify-content:center;transform:none;transition:transform .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);color:var(--acc);}
.faq-acc .accordion-body{padding:0 24px 22px;font-size:15.5px;color:var(--ink2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;color:#F3F0FF;padding:72px 0;
  background:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 52%,#A64BFF 100%);
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 30%,rgba(255,255,255,.45),transparent 62%),
    radial-gradient(1px 1px at 38% 72%,rgba(255,255,255,.35),transparent 62%),
    radial-gradient(1.4px 1.4px at 64% 24%,rgba(255,255,255,.40),transparent 62%),
    radial-gradient(1px 1px at 86% 66%,rgba(255,255,255,.34),transparent 62%);
  background-repeat:no-repeat;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta h2{font-size:clamp(24px,2.7vw,34px);color:#fff;max-width:640px;}
.cta p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.82);max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;}
.cta-note{position:relative;margin-top:26px;font-size:14px;color:rgba(255,255,255,.78);}
.cta-note a{color:#6EE7D8;font-weight:700;}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;color:#F3F0FF;padding:72px 0 0;
  background:linear-gradient(160deg,#0A0820,#140E33 70%);
  border-top:1px solid rgba(140,99,255,.35);
}
.site-foot::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,#8C63FF 35%,#12D6A6 65%,transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand .brand-name{-webkit-text-fill-color:#F3F0FF;color:#F3F0FF;background:none;}
.foot-brand p{font-size:14.5px;color:rgba(243,240,255,.68);line-height:1.85;max-width:340px;}
.foot-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:18px;}
.foot-col ul{display:grid;gap:11px;}
.foot-col ul a{font-size:14.5px;color:rgba(243,240,255,.72);}
.foot-col ul a:hover{color:#6EE7D8;}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(243,240,255,.72);}
.foot-contact i{margin-top:5px;color:#8C63FF;font-size:13px;}
.foot-form{display:flex;gap:8px;margin-top:18px;}
.foot-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.20);background:rgba(255,255,255,.06);color:#F3F0FF;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.foot-form input::placeholder{color:rgba(243,240,255,.5);}
.foot-form input:focus{outline:0;border-color:#12D6A6;box-shadow:0 0 0 3px rgba(18,214,166,.18);}
.foot-form button{
  flex:0 0 auto;height:44px;padding:0 22px;border:0;border-radius:var(--r-pill);
  background:var(--grad-acc);color:#0A0820;font-size:14px;font-weight:800;cursor:pointer;
  transition:filter .18s ease,transform .18s ease;
}
.foot-form button:hover{filter:brightness(1.06);transform:translateY(-1px);}
.foot-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(243,240,255,.55);
}
.foot-bottom a{color:rgba(243,240,255,.7);margin-left:16px;}
.foot-bottom a:hover{color:#6EE7D8;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1400px){
  .wrap{max-width:1240px;}
}
@media (max-width:1199px){
  .layout{grid-template-columns:250px minmax(0,1fr);gap:26px;}
  .svc-card{grid-template-columns:260px minmax(0,1fr);gap:24px;}
  .flow{grid-template-columns:repeat(3,1fr);}
  .foot-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:32px;}
}
@media (max-width:991px){
  .head-search{display:none;}
  .head-top{height:64px;gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual{order:-1;}
  .float-badge{position:static;margin-top:12px;display:inline-flex;}
  .fb-1,.fb-2{right:auto;left:auto;bottom:auto;top:auto;}
  .page-hero{padding:44px 0 60px;}
  .sec{padding:64px 0;}
  .sec-tight{padding:48px 0;}
  .layout{grid-template-columns:1fr;}
  .anchor-card{position:static;margin-bottom:28px;}
  .svc-card{grid-template-columns:1fr;gap:20px;}
  .band-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .prep{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .wrap{padding:0 20px;}
  body{font-size:16px;}
  .head-nav{height:48px;}
  .nav-pill{padding:8px 14px;font-size:13.5px;}
  .head-actions .btn{height:38px;padding:0 16px;font-size:13.5px;}
  .page-hero h1{font-size:clamp(27px,7.6vw,34px);}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:10px;}
  .stat-pill{padding:8px 14px;}
  .stat-pill b{font-size:18px;}
  .band-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .svc-card{padding:20px;}
  .sec-head{margin-bottom:32px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .foot-bottom a{margin-left:0;margin-right:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#17142B;
  --ink-2:#5C5878;
  --line:#E7E4F6;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --p:#5B2BE0;
  --p-d:#3B1E9E;
  --p-l:#8C63FF;
  --grad:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 55%,#A64BFF 100%);
  --mint:#12D6A6;
  --mint-l:#6EE7D8;
  --grad-mint:linear-gradient(120deg,#12D6A6 0%,#5FD8FF 100%);
  --warm:#FFB13C;
  --ice:#F3F0FF;
  --deep:#0A0820;
  --deep-2:#170F3A;
  --r-xl:22px;
  --r-lg:18px;
  --r-md:12px;
  --sh:0 10px 30px rgba(23,15,58,.07);
  --sh-h:0 22px 50px rgba(23,15,58,.14);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--p);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
a:hover{color:var(--p-d)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
strong{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.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}

/* 容器 */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:992px){.wrap{padding:0 28px}}
@media(min-width:1400px){.wrap{max-width:1320px}}

/* ===== 顶部双层导航 ===== */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-head.compact{box-shadow:0 10px 28px rgba(23,15,58,.10)}
.head-top{
  display:flex;align-items:center;gap:22px;
  height:72px;transition:height .25s ease;
}
.site-head.compact .head-top{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--p)}
.brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:12px;background:linear-gradient(135deg,rgba(59,30,158,.10),rgba(18,214,166,.12))}
.brand-name{font-size:19px;font-weight:800;white-space:nowrap;letter-spacing:.2px}
@media(max-width:520px){.brand-name{font-size:16px}.brand-mark{width:30px;height:30px}}

.head-search{flex:1 1 auto;max-width:420px;margin-left:8px;display:none}
@media(min-width:992px){.head-search{display:block}}
.head-search form{
  display:flex;align-items:center;height:44px;padding:0 6px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  box-shadow:0 6px 18px rgba(23,15,58,.05);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.head-search form:focus-within{border-color:var(--p-l);box-shadow:0 0 0 3px rgba(140,99,255,.14)}
.head-search .fa-magnifying-glass{color:var(--ink-2);font-size:14px;margin-right:10px}
.head-search input{flex:1;border:0;outline:0;background:transparent;font-size:14.5px;color:var(--ink);height:100%}
.head-search input::placeholder{color:#9C98B5}
.head-search button{
  height:34px;padding:0 16px;border:0;border-radius:999px;
  background:var(--grad);color:#fff;font-size:13.5px;font-weight:600;
  cursor:pointer;transition:filter .2s ease,transform .2s ease;
}
.head-search button:hover{filter:brightness(1.06)}
.head-search button:active{transform:translateY(1px)}

.head-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.head-actions .btn-grad{height:44px;padding:0 20px;font-size:14.5px}
.head-contact{font-size:14.5px;color:var(--ink-2);font-weight:600;white-space:nowrap}
.head-contact:hover{color:var(--p)}
.head-ico{
  width:42px;height:42px;border:1px solid var(--line);border-radius:50%;
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.2s ease;
}
.head-ico:hover{color:var(--p);border-color:var(--p-l)}
@media(min-width:992px){.head-ico.search-only{display:none}}
@media(max-width:767px){.head-actions .btn-grad{display:none}}

.mobile-search{display:none;padding-bottom:14px}
.site-head.search-open .mobile-search{display:block}
.mobile-search form{display:flex;align-items:center;height:46px;padding:0 6px 0 16px;background:#fff;border:1px solid var(--line);border-radius:999px}
.mobile-search input{flex:1;border:0;outline:0;background:transparent;font-size:15px;color:var(--ink)}
.mobile-search button{height:36px;padding:0 18px;border:0;border-radius:999px;background:var(--grad);color:#fff;font-weight:600;cursor:pointer}

.head-navwrap{position:relative;border-top:1px solid var(--line);background:#fff}
.head-navwrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:32px;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),#fff);
}
.head-nav{
  display:flex;align-items:center;gap:8px;
  height:56px;overflow-x:auto;flex-wrap:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.head-nav::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;transition:.22s ease;
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--p)}
.nav-pill.active{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 22px rgba(91,43,224,.28);
  transform:translateY(-1px);
}
@media(max-width:991px){
  .head-top{height:60px;gap:14px}
  .head-nav{height:48px}
  .nav-pill{padding:8px 15px;font-size:14px}
}

/* ===== 通用按钮 / 标签 / 徽章 ===== */
.btn-grad,.btn-ghost,.btn-ice,.btn-outline-ice{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:filter .22s ease,transform .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-grad{background:var(--grad);color:#fff;border:0;box-shadow:0 14px 30px rgba(91,43,224,.28)}
.btn-grad:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px)}
.btn-grad:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid var(--p);color:var(--p)}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--p-d)}
.btn-ice{background:#fff;color:var(--p-d);border:0;box-shadow:0 14px 30px rgba(10,8,32,.24)}
.btn-ice:hover{color:var(--p-d);transform:translateY(-2px)}
.btn-outline-ice{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff}
.btn-outline-ice:hover{background:rgba(255,255,255,.12);color:#fff}

.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--p);background:rgba(91,43,224,.09);
  transition:.2s ease;
}
.tag:hover{background:var(--p);color:#fff}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--p);margin-bottom:12px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--p);
}
.text-link .fa-arrow-right{transition:transform .22s ease}
.text-link:hover .fa-arrow-right{transform:translateX(4px)}
.text-link::after{content:"";display:block}

/* ===== 板块通用 ===== */
.sec{padding:88px 0}
@media(max-width:1199px){.sec{padding:64px 0}}
@media(max-width:767px){.sec{padding:48px 0}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:20px;justify-content:space-between;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.25}
.sec-desc{max-width:520px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.sec-head.light h2{color:#fff}
.sec-head.light .eyebrow{color:var(--mint-l)}
.sec-head.light .sec-desc{color:rgba(243,240,255,.72)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;color:var(--ice);
  background:var(--deep) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 120% at 12% 0%,rgba(23,15,58,.86) 0%,rgba(10,8,32,.95) 62%),
    linear-gradient(160deg,rgba(59,30,158,.35),rgba(10,8,32,.9));
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 16% 22%,rgba(255,255,255,.85),transparent 62%),
    radial-gradient(1px 1px at 40% 12%,rgba(255,255,255,.7),transparent 62%),
    radial-gradient(1.3px 1.3px at 70% 28%,rgba(110,231,216,.85),transparent 62%),
    radial-gradient(1px 1px at 88% 58%,rgba(255,255,255,.6),transparent 62%),
    radial-gradient(1.2px 1.2px at 30% 76%,rgba(140,99,255,.85),transparent 62%),
    radial-gradient(1px 1px at 60% 88%,rgba(255,255,255,.5),transparent 62%);
  opacity:.9;
}
.hero-inner{position:relative;z-index:2;padding:34px 20px 76px}
@media(min-width:992px){.hero-inner{padding:38px 28px 92px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(243,240,255,.7);margin-bottom:26px}
.crumbs a{color:rgba(243,240,255,.72)}
.crumbs a:hover{color:#fff}
.crumbs .sep{font-size:10px;color:rgba(243,240,255,.4)}
.crumbs .now{color:var(--mint-l)}

.hero-grid{display:grid;gap:44px;align-items:center}
@media(min-width:992px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  font-size:13px;font-weight:600;color:var(--ice);margin-bottom:20px;
}
.hero-tag i{color:var(--mint-l)}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.16;letter-spacing:-.01em;color:#fff;
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(243,240,255,.78);max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.stat-pill{
  display:inline-flex;align-items:baseline;gap:8px;height:44px;padding:0 18px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
}
.stat-pill strong{font-size:22px;font-weight:800;color:#fff}
.stat-pill span{font-size:13px;color:rgba(243,240,255,.7)}

/* 数据面板卡 */
.hud{
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-xl);
  padding:26px;
  box-shadow:0 26px 60px rgba(10,8,32,.45);
}
.hud-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.1)}
.hud-live{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;color:#fff}
.hud-live i{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(18,214,166,.18)}
.hud-chip{font-size:12px;color:rgba(243,240,255,.66);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 12px}
.hud-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}
.hud-stats div{display:flex;flex-direction:column;gap:4px}
.hud-stats strong{font-size:26px;font-weight:800;color:#fff;line-height:1.1}
.hud-stats span{font-size:12.5px;color:rgba(243,240,255,.62)}
.hud-list{display:flex;flex-direction:column;gap:12px;border-top:1px solid rgba(255,255,255,.1);padding-top:18px}
.hud-list li{display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(243,240,255,.82)}
.hud-list time{flex:0 0 52px;color:var(--mint-l);font-weight:700;font-variant-numeric:tabular-nums}
.hud-note{margin-top:18px;font-size:12.5px;color:rgba(243,240,255,.5)}

/* ===== 场景筛选条 ===== */
.filterbar{background:#fff;border-bottom:1px solid var(--line)}
.filter-row{
  display:flex;align-items:center;gap:10px;padding:18px 0;
  overflow-x:auto;scrollbar-width:none;
}
.filter-row::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;height:36px;padding:0 16px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:13.5px;font-weight:600;
  color:var(--ink-2);border:1px solid var(--line);background:#fff;cursor:default;
}
.filter-chip.active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 10px 22px rgba(91,43,224,.24);
}
.filter-meta{flex:0 0 auto;margin-left:auto;font-size:13px;color:var(--ink-2);padding-left:18px}
@media(max-width:767px){.filter-meta{display:none}}

/* ===== 场景错位卡 ===== */
.scene-sec{background:var(--bg)}
.scene-cols{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:992px){
  .scene-cols{grid-template-columns:1fr 1fr;gap:28px}
  .scene-cols>.scene-col:nth-child(2){margin-top:40px}
}
.scene-col{display:flex;flex-direction:column;gap:24px}
.scene-card{
  background:var(--card);border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEAF8}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.scene-body{padding:24px 26px 26px}
.scene-body h3{font-size:20px;font-weight:700;margin:14px 0 14px;line-height:1.4}
.tick-list{display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.75}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;
  background:rgba(18,214,166,.16);
}
.tick-list li::after{
  content:"";position:absolute;left:4px;top:13px;width:6px;height:3px;border-left:2px solid var(--mint);border-bottom:2px solid var(--mint);
  transform:rotate(-45deg);
}
.scene-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:6px;height:38px;padding:0 15px;border-radius:999px;
  background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.16);
  font-size:13px;color:var(--p);font-weight:600;
}
.stat-badge strong{font-size:19px;font-weight:800;color:var(--p-d)}

/* ===== 对比表 ===== */
.cmp-sec{background:#fff}
.cmp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh);overflow:hidden}
.cmp-scroll{overflow-x:auto}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}
.cmp-table th{
  background:linear-gradient(135deg,rgba(59,30,158,.06),rgba(18,214,166,.06));
  font-size:14px;font-weight:700;color:var(--p-d);text-align:left;
  padding:18px 22px;white-space:nowrap;border-bottom:1px solid var(--line);
}
.cmp-table td{
  padding:20px 22px;font-size:15px;color:var(--ink-2);line-height:1.7;
  border-bottom:1px solid var(--line);vertical-align:top;
}
.cmp-table tr:last-child td{border-bottom:0}
.cmp-table td:first-child{
  background:rgba(91,43,224,.07);font-weight:700;color:var(--p-d);white-space:nowrap;
}
.cmp-table tbody tr{transition:background-color .2s ease}
.cmp-table tbody tr:hover td{background:#FBFAFF}
.cmp-table tbody tr:hover td:first-child{background:rgba(91,43,224,.11)}
.cmp-note{
  margin-top:22px;padding:16px 20px;border-left:3px solid var(--mint);
  background:rgba(18,214,166,.07);border-radius:0 12px 12px 0;
  font-size:14.5px;color:var(--ink-2);
}

/* ===== 路径（深空） ===== */
.path-sec{
  position:relative;overflow:hidden;color:var(--ice);
  background:radial-gradient(120% 100% at 10% 0%,var(--deep-2) 0%,var(--deep) 65%);
}
.path-sec::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.85;
  background-image:
    radial-gradient(1.3px 1.3px at 14% 30%,rgba(255,255,255,.7),transparent 62%),
    radial-gradient(1px 1px at 46% 18%,rgba(110,231,216,.7),transparent 62%),
    radial-gradient(1.1px 1.1px at 78% 42%,rgba(140,99,255,.8),transparent 62%),
    radial-gradient(1px 1px at 62% 80%,rgba(255,255,255,.5),transparent 62%);
}
.path-sec .wrap{position:relative;z-index:2}
.path{display:grid;grid-template-columns:1fr;gap:34px;margin-top:8px}
@media(min-width:768px){.path{grid-template-columns:repeat(3,1fr);gap:26px}}
.path-step{position:relative;padding-top:64px}
.path-step .dot{
  position:absolute;top:0;left:0;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;font-size:16px;font-weight:800;color:#fff;
  background:var(--grad);box-shadow:0 14px 30px rgba(110,59,240,.4);
}
.path-step:nth-child(3) .dot{background:var(--grad-mint);color:#062A22;box-shadow:0 14px 30px rgba(18,214,166,.32)}
@media(min-width:768px){
  .path-step:not(:last-child)::after{
    content:"";position:absolute;top:23px;left:60px;right:-6px;height:2px;
    background:linear-gradient(90deg,rgba(140,99,255,.75),rgba(140,99,255,.06));
  }
}
.path-step h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:10px}
.path-step p{font-size:15px;line-height:1.8;color:rgba(243,240,255,.72)}
.path-tip{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:46px;padding:20px 24px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:14.5px;color:rgba(243,240,255,.8);
}
.path-tip i{color:var(--mint-l)}

/* ===== FAQ ===== */
.faq-sec{background:#fff}
.faq-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media(min-width:992px){.faq-grid{grid-template-columns:4fr 8fr;gap:52px;align-items:start}}
.faq-side h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px}
.faq-side p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px}
.acc{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none}
.acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;
  box-shadow:var(--sh);margin-bottom:14px;overflow:hidden;
}
.acc .accordion-item:last-child{margin-bottom:0}
.acc .accordion-button{
  padding:20px 24px;font-size:16.5px;font-weight:650;color:var(--ink);background:#fff;
  border-radius:var(--r-lg);box-shadow:none;
}
.acc .accordion-button:not(.collapsed){color:var(--p);background:#fff}
.acc .accordion-button::after{
  content:"";width:28px;height:28px;margin-left:16px;flex:0 0 28px;border-radius:50%;
  background-color:rgba(91,43,224,.08);
  background-image:linear-gradient(var(--p),var(--p)),linear-gradient(var(--p),var(--p));
  background-size:12px 2px,2px 12px;
  background-position:center,center;
  background-repeat:no-repeat;
  transition:transform .2s ease,background-color .2s ease,background-size .2s ease;
}
.acc .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-color:rgba(91,43,224,.14);
  background-size:12px 2px,0 0;
}
.acc .accordion-body{
  padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);
}

/* ===== 底部 CTA ===== */
.cta-sec{padding:0 0 88px}
@media(max-width:1199px){.cta-sec{padding-bottom:64px}}
@media(max-width:767px){.cta-sec{padding-bottom:48px}}
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;
  padding:52px 40px;color:#fff;
  background:var(--grad);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 28px 60px rgba(91,43,224,.3);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 30%,rgba(255,255,255,.85),transparent 62%),
    radial-gradient(1px 1px at 44% 70%,rgba(255,255,255,.6),transparent 62%),
    radial-gradient(1.2px 1.2px at 76% 24%,rgba(110,231,216,.85),transparent 62%),
    radial-gradient(1px 1px at 90% 76%,rgba(255,255,255,.55),transparent 62%);
}
.cta-copy,.cta-actions{position:relative;z-index:2}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(23px,2.4vw,32px);color:#fff;margin-bottom:12px}
.cta-copy p{font-size:15.5px;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{
  margin-top:22px;text-align:center;font-size:14px;color:var(--ink-2);
}
@media(max-width:767px){.cta-band{padding:38px 24px}}

/* ===== 页脚 ===== */
.site-foot{
  position:relative;color:var(--ice);
  background:radial-gradient(120% 120% at 15% 0%,var(--deep-2) 0%,var(--deep) 70%);
  padding:72px 0 0;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(59,30,158,0),#8C63FF 30%,#12D6A6 68%,rgba(18,214,166,0));
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:38px}
@media(min-width:576px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(min-width:992px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}}
.foot-brand .brand{color:#fff}
.foot-brand .brand-name{color:#fff}
.foot-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(243,240,255,.66);max-width:340px}
.foot-col h4{font-size:15.5px;color:#fff;margin-bottom:18px;font-weight:700}
.foot-col ul{display:flex;flex-direction:column;gap:12px}
.foot-col a{font-size:14.5px;color:rgba(243,240,255,.68)}
.foot-col a:hover{color:#fff}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(243,240,255,.68)}
.foot-contact i{color:var(--mint-l);margin-top:5px}
.foot-sub{display:flex;align-items:center;gap:8px;margin-top:20px;padding:6px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(255,255,255,.05)}
.foot-sub input{
  flex:1;min-width:0;height:38px;border:0;outline:0;background:transparent;
  color:#fff;font-size:14px;padding:0 12px;
}
.foot-sub input::placeholder{color:rgba(243,240,255,.45)}
.foot-sub button{
  height:38px;padding:0 18px;border:0;border-radius:999px;
  background:var(--grad-mint);color:#062A22;font-weight:700;font-size:14px;cursor:pointer;
  transition:filter .2s ease;
}
.foot-sub button:hover{filter:brightness(1.06)}
.foot-sub:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(18,214,166,.18)}
.foot-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(243,240,255,.5);
}
.foot-bottom a{color:rgba(243,240,255,.6)}
.foot-bottom a:hover{color:#fff}

/* 淡入 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* roulang page: category3 */
:root{
  --ink:#17142B; --ink-2:#5C5878; --line:#E7E4F6; --bg:#F5F4FB; --card:#FFFFFF;
  --primary:#5B2BE0; --primary-d:#3B1E9E; --primary-l:#8C63FF;
  --grad:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 52%,#A64BFF 100%);
  --mint:#12D6A6; --mint-l:#6EE7D8; --mint-grad:linear-gradient(120deg,#12D6A6,#5FD8FF);
  --amber:#FFB13C;
  --space:#0A0820; --space-2:#170F3A; --space-grad:radial-gradient(120% 120% at 18% 8%,#1B1146 0%,#0A0820 58%,#090718 100%);
  --r-lg:22px; --r-md:18px; --r-sm:12px;
  --sh:0 10px 30px rgba(23,15,58,.07);
  --sh-h:0 22px 50px rgba(23,15,58,.14);
  --w:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  color:var(--ink);background:var(--bg);font-size:16px;line-height:1.85;
  font-variant-numeric:tabular-nums;overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-head.is-stuck{box-shadow:0 12px 28px rgba(23,15,58,.10);}
.head-top{
  display:flex;align-items:center;gap:22px;min-height:72px;transition:min-height .25s ease;
}
.site-head.is-stuck .head-top{min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;white-space:nowrap;}
.brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;
  border-radius:12px;background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.16);}
.brand-name{font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--ink);}
.search-box{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 8px 0 16px;border-radius:999px;background:#F3F1FC;border:1px solid var(--line);
}
.search-box i{color:var(--ink-2);font-size:14px;}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;height:100%;}
.search-box input::placeholder{color:var(--ink-2);}
.search-box button{
  height:34px;padding:0 16px;border-radius:999px;background:var(--grad);color:#fff;font-size:13px;font-weight:700;
}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.head-link{font-size:14px;font-weight:600;color:var(--ink-2);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(91,43,224,.28);}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(91,43,224,.34);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--primary);color:var(--primary);background:transparent;}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--primary);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.head-cta{height:42px;padding:0 20px;font-size:14px;}

.head-nav{
  display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;-ms-overflow-style:none;position:relative;
}
.head-nav::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;height:38px;display:inline-flex;align-items:center;padding:0 18px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--primary);}
.nav-pill.active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(91,43,224,.26);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#F3F0FF;background:var(--space-grad);
  padding:64px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.85;
  background-image:
    radial-gradient(1.6px 1.6px at 9% 24%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.2px 1.2px at 26% 68%,rgba(255,255,255,.42),transparent 60%),
    radial-gradient(1.4px 1.4px at 44% 16%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1px 1px at 62% 54%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1.5px 1.5px at 78% 30%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.1px 1.1px at 88% 74%,rgba(255,255,255,.38),transparent 60%),
    radial-gradient(1.3px 1.3px at 54% 86%,rgba(255,255,255,.32),transparent 60%);
}
.hero-arc{
  position:absolute;right:-70px;top:-90px;width:340px;height:340px;border-radius:50%;
  border:2px solid transparent;border-top-color:rgba(140,99,255,.6);border-right-color:rgba(18,214,166,.4);
  transform:rotate(-16deg);pointer-events:none;
}
.hero-arc.arc-2{left:-120px;bottom:-160px;top:auto;right:auto;width:420px;height:420px;
  border-top-color:rgba(18,214,166,.28);border-right-color:rgba(255,177,60,.22);transform:rotate(22deg);}
.hero-inner{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(243,240,255,.66);margin-bottom:20px;}
.crumb a{color:rgba(243,240,255,.86);}
.crumb a:hover{color:var(--mint-l);}
.crumb span.sep{opacity:.5;}
.crumb .now{color:rgba(243,240,255,.62);}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);max-width:900px;color:#fff;
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#8C63FF,#12D6A6);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:16px;font-size:16.5px;color:rgba(243,240,255,.78);max-width:720px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hbadge{
  display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 20px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
}
.hbadge b{font-size:22px;color:#fff;font-weight:800;}
.hbadge span{font-size:13px;color:rgba(243,240,255,.72);}

/* ---------- section shell ---------- */
.sec{padding:88px 0;}
.sec.tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.sec-head p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:720px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.04em;
  color:var(--primary);background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.16);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);font-size:15px;}
.link-more i{transition:transform .2s ease;}
.link-more:hover i{transform:translateX(4px);}
.link-more::after{content:"";display:block;position:absolute;}
.pill-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:var(--primary);background:rgba(91,43,224,.09);
  border:1px solid rgba(91,43,224,.14);transition:all .2s ease;
}
.pill-tag:hover{background:var(--primary);color:#fff;}
.pill-tag.mint{color:#0A7A61;background:rgba(18,214,166,.14);border-color:rgba(18,214,166,.28);}
.pill-tag.mint:hover{background:var(--mint);color:#052C22;}

/* ---------- masonry ---------- */
.masonry{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.masonry-col{display:flex;flex-direction:column;gap:24px;}
.mcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease;
}
.mcard:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.mcard-media{position:relative;aspect-ratio:16/10;background:#EDEAF8;overflow:hidden;}
.mcard-media img{width:100%;height:100%;object-fit:cover;}
.mcard-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,8,32,0) 46%,rgba(10,8,32,.42) 100%);
}
.mcard-media .tag-on-img{
  position:absolute;left:14px;bottom:12px;z-index:2;height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:700;color:#fff;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(4px);
}
.mcard-body{padding:24px 26px 26px;}
.mcard-body h3{font-size:19px;line-height:1.45;margin:12px 0 10px;font-weight:700;}
.mcard-body p{color:var(--ink-2);font-size:14.5px;line-height:1.8;}
.mcard-meta{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--ink-2);}
.mcard-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6C1E2;}

/* ---------- rail ---------- */
.rail-sec{background:linear-gradient(180deg,#F5F4FB 0%,#EDEAF8 100%);}
.rail{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 24px;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.rail-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EDEAF8;}
.rail-body{padding:20px 22px 22px;}
.rail-body h3{font-size:16.5px;line-height:1.5;margin:10px 0 8px;font-weight:700;}
.rail-body p{font-size:13.5px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-body .mcard-meta{margin-top:14px;font-size:12.5px;}
.rail-hint{font-size:13px;color:var(--ink-2);display:inline-flex;align-items:center;gap:8px;}

/* ---------- HUD panel ---------- */
.hud-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:32px;align-items:center;}
.hud-copy h2{font-size:clamp(24px,2.6vw,34px);}
.hud-copy p{margin-top:16px;color:var(--ink-2);font-size:15.5px;}
.hud-list{margin-top:26px;display:flex;flex-direction:column;gap:18px;}
.hud-item{display:flex;gap:14px;align-items:flex-start;}
.hud-ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(91,43,224,.16),rgba(18,214,166,.18));color:var(--primary-d);font-size:17px;
}
.hud-item h4{font-size:16.5px;font-weight:700;}
.hud-item p{font-size:14px;color:var(--ink-2);margin-top:4px;}
.hud-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:32px;
  background:var(--space-grad);color:#F3F0FF;border:1px solid rgba(255,255,255,.10);
  box-shadow:0 24px 56px rgba(10,8,32,.32);
}
.hud-panel::before{
  content:"";position:absolute;inset:0;opacity:.8;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 14% 20%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.1px 1.1px at 68% 12%,rgba(255,255,255,.42),transparent 60%),
    radial-gradient(1.2px 1.2px at 84% 62%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1px 1px at 32% 78%,rgba(255,255,255,.34),transparent 60%);
}
.hud-panel > *{position:relative;z-index:2;}
.hud-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;}
.hud-top h3{font-size:17px;font-weight:700;color:#fff;}
.hud-live{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(18,214,166,.14);border:1px solid rgba(18,214,166,.34);color:var(--mint-l);font-size:12.5px;font-weight:700;
}
.hud-live i{font-size:8px;}
.hud-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.hud-metric{
  padding:18px 20px;border-radius:var(--r-md);background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
}
.hud-metric b{display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.hud-metric span{font-size:13px;color:rgba(243,240,255,.66);}
.hud-bars{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
.hud-bar-row{font-size:13px;color:rgba(243,240,255,.78);}
.hud-bar-row .row-top{display:flex;justify-content:space-between;margin-bottom:8px;}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--mint-grad);}
.bar-fill.v2{background:linear-gradient(120deg,#8C63FF,#A64BFF);}
.bar-fill.v3{background:linear-gradient(120deg,#FFB13C,#FF8A3C);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(91,43,224,.28);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;
  background:var(--grad);color:#fff;font-weight:800;font-size:15px;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;}
.step p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.step::after{
  content:"";position:absolute;top:48px;right:-13px;width:14px;height:2px;
  background:linear-gradient(90deg,rgba(91,43,224,.5),rgba(91,43,224,0));
}
.steps .step:last-child::after{display:none;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);}
.faq-aside p{margin-top:14px;color:var(--ink-2);font-size:15px;}
.faq-aside .mini-card{
  margin-top:24px;padding:22px 24px;border-radius:var(--r-md);background:var(--space-grad);color:#F3F0FF;
  border:1px solid rgba(255,255,255,.10);
}
.faq-aside .mini-card h4{color:#fff;font-size:16px;}
.faq-aside .mini-card p{color:rgba(243,240,255,.72);font-size:13.5px;margin-top:8px;}
.faq-aside .mini-card a{color:var(--mint-l);font-weight:700;font-size:14px;display:inline-flex;gap:6px;align-items:center;margin-top:12px;}
.accordion-item{
  background:var(--card);border:1px solid var(--line)!important;border-radius:var(--r-md)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh);
}
.accordion-button{
  background:var(--card);color:var(--ink);font-weight:700;font-size:16.5px;padding:22px 24px;
  box-shadow:none!important;border-radius:var(--r-md)!important;
}
.accordion-button:not(.collapsed){color:var(--primary);background:rgba(91,43,224,.04);}
.accordion-button::after{
  background-image:none;content:"+";font-size:20px;font-weight:700;color:var(--primary);
  width:28px;height:28px;line-height:26px;text-align:center;border-radius:50%;
  background:rgba(91,43,224,.08);transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.accordion-body{padding:0 24px 24px;color:var(--ink-2);font-size:15px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:0;color:#fff;
  background:var(--grad);padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.7;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 34%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.2px 1.2px at 46% 22%,rgba(255,255,255,.42),transparent 60%),
    radial-gradient(1.3px 1.3px at 74% 60%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1px 1px at 88% 28%,rgba(255,255,255,.34),transparent 60%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);color:#fff;max-width:640px;}
.cta-inner p{margin-top:12px;color:rgba(243,240,255,.82);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-light{background:#fff;color:var(--primary-d);}
.btn-light:hover{color:var(--primary-d);transform:translateY(-2px);box-shadow:0 16px 32px rgba(10,8,32,.24);}
.btn-line{border:1px solid rgba(255,255,255,.6);color:#fff;}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-foot{margin-top:24px;font-size:14px;color:rgba(243,240,255,.78);display:flex;gap:24px;flex-wrap:wrap;}
.cta-foot a{color:#fff;font-weight:700;border-bottom:1px solid rgba(255,255,255,.4);}

/* ---------- footer ---------- */
.site-foot{
  position:relative;background:var(--space-grad);color:rgba(243,240,255,.76);padding:64px 0 0;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(140,99,255,0),rgba(140,99,255,.9),rgba(18,214,166,.9),rgba(140,99,255,0));
}
.foot-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:36px;padding-bottom:44px;}
.foot-brand .brand-name{color:#fff;}
.foot-brand .brand-mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(243,240,255,.68);max-width:360px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:14px;color:rgba(243,240,255,.72);}
.foot-col a:hover{color:var(--mint-l);}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(243,240,255,.72);}
.foot-contact i{color:var(--mint-l);margin-top:7px;font-size:13px;}
.foot-sub{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap;}
.foot-sub input{
  flex:1 1 180px;height:46px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);padding:0 20px;color:#fff;font-size:14px;outline:none;
}
.foot-sub input::placeholder{color:rgba(243,240,255,.5);}
.foot-sub input:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(18,214,166,.18);}
.foot-sub button{height:46px;padding:0 24px;border-radius:999px;background:var(--mint-grad);color:#052C22;font-weight:800;font-size:14px;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 28px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,240,255,.58);
}
.foot-bottom a{color:rgba(243,240,255,.78);}
.foot-bottom a:hover{color:var(--mint-l);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .masonry{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
}
@media (max-width:991px){
  .head-top{min-height:64px;gap:14px;}
  .site-head.is-stuck .head-top{min-height:58px;}
  .search-box{display:none;}
  .hud-grid{grid-template-columns:1fr;gap:26px;}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .sec{padding:64px 0;}
  .hero{padding:48px 0 56px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  .masonry{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .head-nav{height:48px;}
  .head-cta{display:none;}
  .head-link{font-size:13.5px;}
  .brand-name{font-size:17px;}
  .sec{padding:48px 0;}
  .sec-head{margin-bottom:26px;}
  .hud-panel{padding:24px;}
  .hud-metrics{grid-template-columns:1fr;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:24px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .mcard-body{padding:20px 20px 22px;}
  .rail-card{flex:0 0 258px;}
}
@media (max-width:520px){
  .hero h1{font-size:27px;}
  .hero-sub{font-size:15px;}
  .hbadge{height:40px;padding:0 16px;}
  .hbadge b{font-size:19px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#17142B;
  --sub:#5C5878;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E4F6;
  --violet:#5B2BE0;
  --violet-d:#3B1E9E;
  --violet-l:#8C63FF;
  --mint:#12D6A6;
  --mint-l:#6EE7D8;
  --warm:#FFB13C;
  --grad-main:linear-gradient(135deg,#3B1E9E 0%,#6E3BF0 55%,#A64BFF 100%);
  --grad-mint:linear-gradient(120deg,#12D6A6 0%,#5FD8FF 100%);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:12px;
  --sh-1:0 10px 30px rgba(23,15,58,.07);
  --sh-2:0 22px 50px rgba(23,15,58,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:150px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--violet);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--violet-d)}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.25;color:var(--ink)}
h1{font-size:clamp(28px,3.8vw,46px);line-height:1.16;letter-spacing:-.01em}
h2{font-size:clamp(23px,2.5vw,32px)}
h3{font-size:clamp(19px,1.6vw,22px);font-weight:700}
h4{font-size:17px;font-weight:700}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:992px){.wrap{padding:0 28px}}
@media (min-width:1400px){.wrap{max-width:1320px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- 头部 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-head.is-stuck{box-shadow:0 14px 34px rgba(23,15,58,.12)}
.head-top{border-bottom:1px solid transparent}
.head-top .wrap{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;flex:0 0 auto}
.brand-mark{display:inline-flex;width:36px;height:36px;align-items:center;justify-content:center;border-radius:12px;background:radial-gradient(120% 120% at 30% 20%,#2A1A63 0%,#0A0820 100%);border:1px solid rgba(255,255,255,.10)}
.brand-name{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:0;white-space:nowrap}
.brand:hover .brand-name{color:var(--violet)}
.head-search{margin-left:auto;flex:1 1 auto;max-width:400px}
.search-field{display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 18px;border-radius:999px;background:#fff;border:1px solid var(--line);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-field:focus-within{border-color:var(--violet-l);box-shadow:0 0 0 3px rgba(140,99,255,.16)}
.search-field i{color:var(--sub);font-size:14px}
.search-field input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:14px}
.search-field input::placeholder{color:#9E98C0}
.search-btn{flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:999px;background:var(--grad-main);color:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:filter .2s var(--ease),transform .2s var(--ease)}
.search-btn:hover{filter:brightness(1.06);transform:translateY(-1px)}
.head-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.link-plain{font-size:14px;font-weight:600;color:var(--sub)}
.link-plain:hover{color:var(--violet)}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border:0;border-radius:999px;
  background:var(--grad-main);color:#fff;font-size:15.5px;font-weight:700;
  cursor:pointer;box-shadow:0 12px 26px rgba(91,43,224,.26);
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 34px rgba(91,43,224,.32)}
.btn-grad:active{transform:translateY(0);box-shadow:0 10px 20px rgba(91,43,224,.24)}
.btn-grad.sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid var(--violet);
  background:transparent;color:var(--violet);font-size:15.5px;font-weight:700;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease),color .2s var(--ease);
}
.btn-ghost:hover{background:rgba(91,43,224,.08);color:var(--violet-d);transform:translateY(-2px)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.38);color:#F3F0FF}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.12);color:#fff}
.head-nav{display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;position:relative}
.head-nav::-webkit-scrollbar{display:none}
.nav-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--sub);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-pill:hover{background:rgba(91,43,224,.08);color:var(--violet-d)}
.nav-pill.active{background:var(--grad-main);color:#fff;box-shadow:0 10px 22px rgba(91,43,224,.26);transform:translateY(-1px)}

/* ---------- 页首 ---------- */
.page-head{
  position:relative;
  padding:38px 0 30px;
  background:
    radial-gradient(90% 120% at 100% 0%,rgba(140,99,255,.14),transparent 58%),
    radial-gradient(70% 90% at 0% 10%,rgba(18,214,166,.10),transparent 55%),
    var(--bg);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;border-radius:50%;
  border:2px solid rgba(140,99,255,.20);border-bottom-color:transparent;border-left-color:transparent;transform:rotate(24deg);pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--sub);margin-bottom:18px}
.crumb a{color:var(--sub)}
.crumb a:hover{color:var(--violet)}
.crumb .sep{opacity:.5;font-size:11px}
.crumb .cur{color:#8B85AA}
.page-head-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:44px;align-items:center;position:relative;z-index:2}
.lead-txt{font-size:17px;color:var(--sub);max-width:600px;margin:16px 0 22px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--violet);
  background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.20);
}
.tag-pill i{font-size:12px;color:var(--mint)}
.head-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);background:#EDEAF8;aspect-ratio:16/11}
.head-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 主体问答区 ---------- */
.help-main{padding:72px 0 80px}
.side-title{margin-bottom:8px}
.side-desc{color:var(--sub);font-size:15px;margin-bottom:20px}
.anchor-nav{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px;box-shadow:var(--sh-1);margin-bottom:20px}
.anchor-link{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--sub);transition:background .2s var(--ease),color .2s var(--ease)}
.anchor-link::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:999px;background:#D6D1EE;transition:background .2s var(--ease),box-shadow .2s var(--ease)}
.anchor-link:hover{background:rgba(91,43,224,.06);color:var(--violet-d)}
.anchor-link.is-active{background:rgba(91,43,224,.08);color:var(--violet)}
.anchor-link.is-active::before{background:var(--mint);box-shadow:0 0 0 4px rgba(18,214,166,.18)}
.anchor-link i{margin-left:auto;font-size:12px;color:#B7B0DA}

.contact-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:26px 24px;
  background:radial-gradient(130% 130% at 100% 0%,#2A1A63 0%,#120C34 45%,#0A0820 100%);
  border:1px solid rgba(255,255,255,.10);color:#F3F0FF;
}
.contact-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.2px 1.2px at 18% 26%,rgba(255,255,255,.6),transparent 100%),
    radial-gradient(1px 1px at 62% 14%,rgba(255,255,255,.45),transparent 100%),
    radial-gradient(1.4px 1.4px at 84% 58%,rgba(110,231,216,.55),transparent 100%),
    radial-gradient(1px 1px at 34% 74%,rgba(255,255,255,.35),transparent 100%),
    radial-gradient(1.2px 1.2px at 74% 88%,rgba(140,99,255,.6),transparent 100%);
}
.contact-card h3{color:#fff;font-size:19px;margin-bottom:10px;position:relative;z-index:2}
.contact-card p{color:#C9C2E8;font-size:14px;margin-bottom:18px;position:relative;z-index:2}
.contact-line{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid rgba(255,255,255,.10);font-size:14.5px;position:relative;z-index:2}
.contact-line i{width:34px;height:34px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;border-radius:11px;background:rgba(255,255,255,.08);color:var(--mint-l);font-size:14px}
.contact-line strong{color:#fff;font-size:16px;letter-spacing:.01em}
.contact-card .btn-ghost{margin-top:18px;width:100%;height:44px;font-size:14.5px;position:relative;z-index:2}

.acc-group{margin-bottom:36px}
.acc-group > h3{padding-left:15px;position:relative;margin-bottom:16px}
.acc-group > h3::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:var(--grad-main)}
.acc-group .acc-hint{font-size:14px;color:var(--sub);margin:0 0 16px 15px}

.accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.accordion-item:hover{box-shadow:0 16px 36px rgba(23,15,58,.10);transform:translateY(-2px)}
.accordion-header{margin:0}
.accordion-button{
  display:flex;align-items:center;gap:14px;
  width:100%;padding:19px 22px;border:0;background:#fff;
  font-size:16.5px;font-weight:700;color:var(--ink);text-align:left;
  box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--violet);background:#fff;box-shadow:none}
.accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(18,214,166,.45);outline:none}
.accordion-button::after{display:none !important}
.acc-q{flex:1 1 auto;line-height:1.55}
.acc-ico{position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:999px;background:rgba(91,43,224,.10);transition:background .2s var(--ease),transform .2s var(--ease)}
.acc-ico::before,.acc-ico::after{content:"";position:absolute;left:50%;top:50%;background:var(--violet);border-radius:2px;transform:translate(-50%,-50%);transition:opacity .2s var(--ease)}
.acc-ico::before{width:11px;height:2px}
.acc-ico::after{width:2px;height:11px}
.accordion-button:not(.collapsed) .acc-ico{background:rgba(91,43,224,.18);transform:rotate(180deg)}
.accordion-button:not(.collapsed) .acc-ico::after{opacity:0}
.accordion-body{padding:0 22px 22px;font-size:15.5px;color:var(--sub);line-height:1.9}
.accordion-body p:last-child{margin-bottom:0}

.ask-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);margin-top:6px}
.ask-form h3{margin-bottom:8px}
.ask-form .form-desc{color:var(--sub);font-size:14.5px;margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:700;color:var(--sub)}
.field .req{color:var(--warm);margin-left:2px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FBFBFE;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:128px;padding:13px 16px;line-height:1.8;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9E98C0}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 2px rgba(91,43,224,.30);background:#fff}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.form-note{font-size:13px;color:#8B85AA;margin:0}

/* ---------- 快速上手 ---------- */
.quick-path{padding:76px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:660px;margin-bottom:36px}
.sec-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--violet);background:rgba(91,43,224,.08);border:1px solid rgba(91,43,224,.20);height:30px;padding:0 14px;border-radius:999px;margin-bottom:14px}
.sec-head p{color:var(--sub);font-size:16px;margin:12px 0 0}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step-card{position:relative;border-radius:var(--r-lg);padding:28px 26px;background:#F8F7FD;border:1px solid var(--line);transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease)}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);background:#fff}
.step-num{font-size:34px;font-weight:800;line-height:1;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.step-card h3{font-size:19px;margin:14px 0 10px}
.step-card p{font-size:15px;color:var(--sub);margin:0}
.step-line{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.step-line span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--sub)}
.step-line i{color:var(--mint);font-size:12px}

/* ---------- 数据保障 ---------- */
.assure{padding:76px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.metric-num{font-size:27px;font-weight:800;color:var(--violet);line-height:1.2;font-variant-numeric:tabular-nums}
.metric-label{font-size:13.5px;color:var(--sub);margin-top:8px}
.metric-card .dot{display:inline-block;width:8px;height:8px;border-radius:999px;background:var(--grad-mint);margin-right:8px;vertical-align:middle}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:64px 0;
  background:radial-gradient(120% 160% at 8% 0%,#3B1E9E 0%,#1B1049 46%,#0A0820 100%);
  color:#F3F0FF;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.3px 1.3px at 12% 30%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1px 1px at 28% 68%,rgba(255,255,255,.38),transparent 100%),
    radial-gradient(1.5px 1.5px at 46% 22%,rgba(110,231,216,.6),transparent 100%),
    radial-gradient(1px 1px at 66% 78%,rgba(255,255,255,.35),transparent 100%),
    radial-gradient(1.4px 1.4px at 82% 34%,rgba(140,99,255,.65),transparent 100%),
    radial-gradient(1px 1px at 92% 62%,rgba(255,255,255,.4),transparent 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:32px;justify-content:space-between}
.cta-inner h2{color:#fff;max-width:560px}
.cta-inner p{color:#C9C2E8;font-size:15.5px;margin:12px 0 0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-foot{position:relative;z-index:2;margin-top:26px;font-size:14px;color:#B9B2DC;display:flex;flex-wrap:wrap;gap:22px}
.cta-foot i{color:var(--mint-l);margin-right:8px}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 140% at 12% 0%,#1B1049 0%,#0E0930 45%,#0A0820 100%);
  color:#CFC9E8;padding:58px 0 0;
}
.site-foot::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,#8C63FF,#12D6A6,transparent)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;position:relative;z-index:2}
.foot-brand .brand{margin-bottom:16px}
.foot-brand .brand-name{color:#fff}
.foot-brand p{font-size:14px;color:#B9B2DC;line-height:1.85;max-width:340px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.01em}
.foot-col ul li{margin-bottom:11px;font-size:14px}
.foot-col ul li a{color:#CFC9E8}
.foot-col ul li a:hover{color:var(--mint-l)}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;color:#CFC9E8}
.foot-contact li i{margin-top:5px;color:var(--mint-l);font-size:13px;width:16px;flex:0 0 auto}
.foot-bottom{
  margin-top:42px;border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#9E98C0;position:relative;z-index:2;
}
.foot-bottom a{color:#9E98C0}
.foot-bottom a:hover{color:var(--mint-l)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-head-grid{gap:32px}
}
@media (max-width:991px){
  .head-search{display:none}
  .page-head-grid{grid-template-columns:1fr;gap:28px}
  .head-figure{aspect-ratio:16/9}
  .step-grid{grid-template-columns:1fr 1fr}
  .metric-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .help-main{padding:56px 0 64px}
  .quick-path,.assure{padding:60px 0}
}
@media (max-width:767px){
  .head-top .wrap{height:60px;gap:14px}
  .brand-name{font-size:16.5px}
  .brand-mark{width:32px;height:32px}
  .head-nav{height:48px}
  .nav-pill{padding:8px 15px;font-size:14px}
  .head-actions .btn-grad.sm{height:36px;padding:0 16px;font-size:13px}
  .page-head{padding:28px 0 22px}
  .page-head::after{display:none}
  .help-main{padding:44px 0 52px}
  .form-row{grid-template-columns:1fr}
  .quick-path,.assure{padding:48px 0}
  .cta-band{padding:48px 0}
  .cta-inner{gap:22px}
  .site-foot{padding-top:44px}
}
@media (max-width:520px){
  .step-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .acc-group > h3{font-size:18px}
  .accordion-button{padding:16px 16px;font-size:15.5px;gap:10px}
  .accordion-body{padding:0 16px 18px;font-size:15px}
  .ask-form{padding:20px 18px}
  .cta-actions{width:100%}
  .cta-actions .btn-grad,.cta-actions .btn-ghost{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}