/* roulang page: index */
:root{
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-soft:#F3F1FB;
  --grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --r-btn:13px;
  --r-card:20px;
  --r-big:28px;
  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#7A5CFF;
  --bs-link-color:#7A5CFF;
  --bs-link-hover-color:#C13BE8;
  --bs-body-color:#241E3D;
  --bs-body-bg:#FFFFFF;
  --bs-border-radius:14px;
  --bs-body-font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease)}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,16,43,.03);
}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;border-radius:10px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:-.5px;
  box-shadow:0 6px 14px -6px rgba(122,92,255,.7);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-1);white-space:nowrap}
.main-nav{flex:1 1 auto;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;display:block;padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:10px;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--grad);
  transition:width .24s var(--ease);
}
.main-nav a:hover{color:var(--text-1)}
.main-nav a:hover::after{width:20px}
.main-nav a.active{color:var(--text-1);font-weight:600}
.main-nav a.active::after{width:20px}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  position:relative;display:flex;align-items:center;
  height:40px;width:236px;
  background:var(--brand-soft);border:1px solid transparent;border-radius:12px;
  padding:0 10px 0 38px;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--text-2);fill:none;stroke-width:1.8}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text-1);
}
.search-box input::placeholder{color:#A29BBC}
.search-box .kbd{
  flex-shrink:0;font-size:11px;font-weight:600;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 6px;
}
.search-box:focus-within{
  background:#fff;border-color:var(--brand-1);
  box-shadow:0 0 0 3px rgba(122,92,255,.18);
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--text-2);padding:6px 8px;border-radius:10px;
}
.quick-link::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--accent-task);box-shadow:0 0 0 4px rgba(47,227,176,.16);
}
.quick-link:hover{color:var(--brand-1)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:14px 0 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.mobile-drawer a{
  display:block;padding:11px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--text-2);
}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-soft);color:var(--brand-1);font-weight:600}
.mobile-drawer .drawer-cta{display:flex;gap:10px;padding:0 14px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-lg{height:52px;padding:0 30px;font-size:17px;border-radius:14px;font-weight:700}
.btn-grad{
  position:relative;overflow:hidden;color:#fff;background:var(--grad);
  box-shadow:var(--shadow-brand);
}
.btn-grad::after{
  content:"";position:absolute;top:-40%;left:-60%;width:40%;height:180%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.42),rgba(255,255,255,0));
  transform:rotate(18deg);transition:left .4s var(--ease);
}
.btn-grad:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff}
.btn-grad:hover::after{left:130%}
.btn-ghost{
  color:#fff;background:transparent;border:1px solid rgba(255,255,255,.4);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.btn-second{
  color:var(--text-1);background:#fff;border:1px solid var(--line);
}
.btn-second:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);
}
.link-arrow::after{content:"→";transition:transform .22s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ============ 首屏 ============ */
.hero{
  position:relative;
  background-image:
    linear-gradient(120deg,rgba(21,17,48,.88) 0%,rgba(104,72,226,.84) 52%,rgba(193,59,232,.78) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-160px;bottom:-220px;width:640px;height:640px;
  background:radial-gradient(circle,rgba(255,255,255,.20) 0%,rgba(255,255,255,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--grad);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
  padding:104px 0 92px;
}
.hero h1{
  font-size:clamp(32px,4.6vw,56px);
  line-height:1.12;font-weight:800;letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;line-height:1.7;color:rgba(255,255,255,.82);
  max-width:32ch;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
}
.kv-badge{
  border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.13);
  border-radius:999px;
  padding:18px 22px;
  display:flex;flex-direction:column;gap:2px;
}
.kv-badge b{
  font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.5px;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.kv-badge span{font-size:13px;color:rgba(255,255,255,.76)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.soft{background:var(--bg-soft)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:48px;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.4px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--grad);
}
.section-sub{font-size:15px;color:var(--text-2);margin-top:8px;padding-left:16px;max-width:52ch}
.section-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--text-2);background:#fff;border:1px solid var(--line);
  transition:all .22s var(--ease);
}
.chip:hover{border-color:var(--brand-1);color:var(--brand-1)}
.chip.active{background:var(--grad);color:#fff;border-color:transparent}

/* ============ 玩法拼块 ============ */
.piece{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  padding:26px;
  display:flex;flex-direction:column;gap:14px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.piece:hover{transform:translateY(-4px);border-color:#DCD4FA;box-shadow:var(--shadow-md)}
.piece-num{
  align-self:flex-start;
  padding:4px 14px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:.4px;
  color:var(--brand-1);
  background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;
  border:1px solid transparent;
  font-variant-numeric:tabular-nums;
}
.piece h3{font-size:19px;line-height:1.45;font-weight:600}
.piece p{font-size:15px;line-height:1.75;color:var(--text-2)}
.piece figure{margin-top:auto;border-radius:16px;overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft)}
.piece figure img{width:100%;height:100%;object-fit:cover}

/* ============ 奖励预览 ============ */
.reward-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.reward-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.reward-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--grad);
}
.reward-card:hover{transform:translateY(-4px);border-color:#DCD4FA;box-shadow:var(--shadow-md)}
.reward-thumb{aspect-ratio:4/3;border-radius:16px;overflow:hidden;background:var(--brand-soft)}
.reward-thumb img{width:100%;height:100%;object-fit:cover}
.reward-card h3{font-size:18px;font-weight:600;line-height:1.45}
.rarity{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;width:fit-content;
}
.rarity.amber{background:rgba(255,194,75,.18);color:#A97408}
.rarity.mint{background:rgba(47,227,176,.18);color:#0B8A66}
.rarity.violet{background:rgba(169,139,255,.20);color:#5B3BC4}
.reward-value{
  display:flex;align-items:baseline;gap:6px;
  font-size:14px;color:var(--text-2);
}
.reward-value b{font-size:22px;font-weight:800;color:var(--text-1);font-variant-numeric:tabular-nums}

/* ============ 任务进度 ============ */
.task-wrap{
  background:var(--bg-soft);border-radius:var(--r-big);
  padding:32px;display:grid;grid-template-columns:1.25fr .75fr;gap:32px;
  border:1px solid var(--line);
}
.task-card{background:#fff;border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-sm)}
.task-list{display:flex;flex-direction:column;gap:6px}
.task-row{
  display:flex;align-items:center;gap:12px;
  padding:13px 4px;border-bottom:1px dashed var(--line);
}
.task-row:last-child{border-bottom:0}
.dot{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:2px solid #D7D2EC;
}
.dot.done{background:var(--accent-task);border-color:var(--accent-task)}
.dot.done::after{content:"";width:8px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translate(1px,-2px)}
.dot.doing{border-color:var(--accent-reward);animation:pulse 1.8s infinite}
.dot.doing::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-reward)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,194,75,.42)}50%{box-shadow:0 0 0 6px rgba(255,194,75,0)}}
.task-name{flex:1;font-size:15px;color:var(--text-1)}
.task-tag{
  flex-shrink:0;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-1);font-variant-numeric:tabular-nums;
}
.task-tag.grey{background:#F2F1F7;color:var(--text-2)}
.progress-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.progress-head span{font-size:14px;color:var(--text-2)}
.progress-value{font-size:34px;font-weight:800;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.progress-track{height:10px;border-radius:999px;background:#ECE9F8;overflow:hidden}
.progress-fill{height:100%;width:0;border-radius:999px;background:var(--grad);transition:width .8s var(--ease)}
.progress-note{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.75}
.task-card ul.small-note{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.task-card ul.small-note li{font-size:14px;color:var(--text-2);padding-left:16px;position:relative}
.task-card ul.small-note li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--brand-1)}

/* ============ 参与条带 ============ */
.cta-strip{
  position:relative;overflow:hidden;
  background:var(--ink-deep);
  border-top:1px solid rgba(122,92,255,.4);
  border-bottom:1px solid rgba(122,92,255,.4);
}
.cta-strip::before{
  content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(122,92,255,.28) 0%,rgba(122,92,255,0) 70%);
  pointer-events:none;
}
.cta-strip-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 0;
}
.cta-strip p{color:#fff;font-size:18px;font-weight:600}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:#DCD4FA;box-shadow:var(--shadow-md)}
.news-thumb{
  position:relative;display:block;aspect-ratio:16/10;border-radius:16px;overflow:hidden;background:var(--brand-soft);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.thumb-ph{
  display:block;width:100%;height:100%;
  background:linear-gradient(120deg,#EFEAFF 0%,#F8E9FD 48%,#EAF6FF 100%);
}
.badge-cat{
  position:absolute;left:12px;top:12px;z-index:2;
  font-size:12px;font-weight:600;color:var(--brand-1);
  background:rgba(255,255,255,.92);border-radius:999px;padding:4px 12px;
}
.news-title{font-size:17px;font-weight:600;line-height:1.5}
.news-title a:hover{color:var(--brand-1)}
.news-sum{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2);
}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:64px 24px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-big);
}
.empty-circle{
  width:76px;height:76px;border-radius:50%;
  background:linear-gradient(120deg,rgba(122,92,255,.14),rgba(193,59,232,.14));
  display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--brand-1);
}
.empty-state p{color:var(--text-2);font-size:15px}

/* ============ 数据与口碑 ============ */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:32px}
.trust-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.trust-card:hover{transform:translateY(-4px);border-color:#DCD4FA;box-shadow:var(--shadow-md)}
.trust-card p{font-size:15px;line-height:1.85;color:var(--text-1);margin-bottom:18px}
.trust-user{display:flex;align-items:center;gap:12px}
.trust-avatar{
  width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.trust-user b{display:block;font-size:14px;font-weight:600}
.trust-user span{font-size:12px;color:var(--text-2)}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.stat-cell{background:#fff;padding:26px 22px;text-align:center}
.stat-cell b{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.5px;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-cell span{font-size:13px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:960px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:#DCD4FA}
.faq-item.open{box-shadow:var(--shadow-md);border-color:#DCD4FA}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 24px;text-align:left;
}
.faq-num{
  flex-shrink:0;width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--brand-1);
  background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;
  border:1px solid transparent;font-variant-numeric:tabular-nums;
}
.faq-text{flex:1;font-size:16px;font-weight:600;line-height:1.5;color:var(--text-1)}
.faq-icon{position:relative;flex-shrink:0;width:18px;height:18px;transition:transform .3s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-1);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s var(--ease)}
.faq-a p{
  padding:0 24px 22px 72px;
  font-size:15px;line-height:1.85;color:var(--text-2);max-width:76ch;
}
.faq-item.open .faq-a{max-height:360px}

/* ============ 收尾 CTA ============ */
.final-cta{padding:96px 0}
.final-cta-inner{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:var(--r-big);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
  box-shadow:var(--shadow-brand);
}
.final-cta-inner::before{
  content:"";position:absolute;right:-80px;bottom:-140px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,255,255,.24) 0%,rgba(255,255,255,0) 70%);
}
.final-cta-text{position:relative;z-index:2}
.final-cta-text h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px}
.final-cta-text p{font-size:15px;color:rgba(255,255,255,.86);max-width:44ch}
.final-cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.final-cta .btn-second{background:rgba(255,255,255,.96);border-color:transparent}
.final-cta .btn-second:hover{color:var(--brand-1)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:#fff;padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;right:-180px;top:-180px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(122,92,255,.14) 0%,rgba(122,92,255,0) 70%);
  pointer-events:none;
}
.footer-top{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-text{color:#fff}
.footer-desc{margin:16px 0 20px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:34ch}
.footer-badges{display:flex;gap:10px;flex-wrap:wrap}
.footer-badges span{
  font-size:12px;font-weight:600;padding:5px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.86);
}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.4px;margin-bottom:16px;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0 32px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.to-top{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.34);
  background:linear-gradient(var(--ink-deep),var(--ink-deep)) padding-box,var(--grad) border-box;
  border:1px solid transparent;
  color:#fff;font-size:16px;
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.to-top:hover{background:var(--grad);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .wrap{max-width:1140px}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  .nav-inner{height:60px;gap:16px}
  .main-nav{display:none}
  .search-box{display:none}
  .quick-link{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:72px 0 64px}
  .hero-sub{max-width:none}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:34px}
  .task-wrap{grid-template-columns:1fr;padding:22px}
  .cta-strip-inner{flex-direction:column;align-items:flex-start;gap:20px}
  .cta-strip-inner .btn{width:100%}
  .final-cta{padding:64px 0}
  .final-cta-inner{flex-direction:column;align-items:flex-start;padding:36px 28px;gap:24px}
  .final-cta-actions{width:100%}
  .final-cta-actions .btn{flex:1}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .hero-panel{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:1fr}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .faq-a p{padding:0 20px 20px 20px}
  .faq-q{padding:16px 18px;gap:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .wrap{padding:0 18px}
  .hero-inner{padding:56px 0 52px}
  .hero-actions .btn{width:100%}
  .hero-panel{grid-template-columns:1fr}
  .kv-badge{padding:14px 18px}
  .reward-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .section{padding:56px 0}
  .task-card{padding:20px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .final-cta-actions{flex-direction:column}
  .final-cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --brand-soft:#F3F1FB;
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --r-xs:10px;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:28px;
  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-body-font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --bs-body-color:#241E3D;
  --bs-body-bg:#FFFFFF;
  --bs-border-radius:12px;
  --bs-link-color:#7A5CFF;
  --bs-link-hover-color:#5A38F0;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-1);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:#5A38F0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);letter-spacing:-.2px}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:8px}

.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;border-radius:10px;background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 6px 14px -6px rgba(122,92,255,.7);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-1);white-space:nowrap}
.main-nav{flex:1 1 auto;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.main-nav a{
  position:relative;display:block;padding:9px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:translateX(-50%);
  transition:width .26s var(--ease);
}
.main-nav a:hover{color:var(--text-1);background:var(--brand-soft)}
.main-nav a:hover::after{width:20px}
.main-nav a.active{color:var(--text-1);font-weight:600}
.main-nav a.active::after{width:20px}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0}
.command-search{position:relative;display:flex;align-items:center}
.command-search .s-icon{position:absolute;left:13px;width:16px;height:16px;color:var(--text-2);pointer-events:none}
.command-search input{
  height:40px;width:236px;border-radius:12px;border:1px solid transparent;
  background:var(--brand-soft);padding:0 48px 0 38px;font-size:14px;color:var(--text-1);
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.command-search input::placeholder{color:#9C96B4}
.command-search input:focus{
  outline:none;background:#fff;border-color:var(--brand-1);
  box-shadow:0 0 0 3px rgba(122,92,255,.18);
}
.command-search .kbd{
  position:absolute;right:10px;font-size:11px;line-height:1;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:6px;padding:4px 6px;
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;
  border-radius:12px;font-size:13.5px;font-weight:500;color:var(--text-2);
  transition:color .22s var(--ease),background .22s var(--ease);
}
.quick-link:hover{color:var(--brand-1);background:var(--brand-soft)}
.quick-link svg{width:16px;height:16px}

.btn-brand,.btn-soft,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;font-weight:600;font-size:15px;cursor:pointer;
  border:1px solid transparent;text-align:center;white-space:nowrap;
  transition:transform .22s var(--ease),filter .22s var(--ease),box-shadow .22s var(--ease),
             background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-brand{
  position:relative;overflow:hidden;height:44px;padding:0 22px;
  background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand);
}
.btn-brand:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 34px -12px rgba(122,92,255,.62)}
.btn-brand::after{
  content:"";position:absolute;top:0;left:-70%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  transition:left .55s var(--ease);
}
.btn-brand:hover::after{left:130%}
.btn-soft{
  height:44px;padding:0 20px;background:#fff;color:var(--text-1);border-color:var(--line);
}
.btn-soft:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-ghost{
  height:44px;padding:0 20px;background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.4);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-lg{height:52px;padding:0 28px;border-radius:14px;font-size:16px}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--text-1);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

.drawer{
  display:none;position:absolute;left:16px;right:16px;top:calc(100% + 8px);
  background:#fff;border-radius:16px;border:1px solid var(--line);
  box-shadow:0 24px 48px -20px rgba(20,16,43,.28);padding:10px;
}
.drawer.open{display:block;animation:drawerIn .22s var(--ease)}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.drawer a{
  display:block;padding:12px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--text-1);
}
.drawer a.active,.drawer a:hover{background:var(--brand-soft);color:var(--brand-1)}

.search-overlay{
  display:none;position:fixed;inset:0;z-index:1050;background:rgba(21,17,48,.55);
  align-items:flex-start;justify-content:center;padding:88px 20px 20px;
}
.search-overlay.open{display:flex}
.search-panel{
  width:100%;max-width:560px;background:#fff;border-radius:18px;padding:18px;
  box-shadow:0 30px 60px -24px rgba(21,17,48,.5);
}
.search-panel h2{font-size:16px;margin-bottom:12px}
.search-panel input{
  width:100%;height:50px;border-radius:14px;border:1px solid var(--line);background:var(--bg-soft);
  padding:0 16px;font-size:15px;
}
.search-panel input:focus{outline:none;background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18)}
.search-panel .close-search{
  margin-top:12px;width:100%;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text-1);font-weight:600;cursor:pointer;
}
.search-icon-btn{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.search-icon-btn svg{width:16px;height:16px;color:var(--text-1)}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-1)}
.crumb .sep{color:#C6C1DA}
.crumb .cur{color:var(--text-1);font-weight:600}

/* ============ 文章页头 ============ */
.post-hero{
  position:relative;padding:36px 0 8px;background:
    radial-gradient(720px 260px at 88% -40%,rgba(193,59,232,.10),transparent 70%),
    linear-gradient(180deg,#FBF9FF 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
}
.post-hero .cat-badge{
  display:inline-flex;align-items:center;gap:6px;margin:16px 0 14px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--brand-1);
  background:rgba(122,92,255,.10);
  border:1px solid rgba(122,92,255,.35);
}
.post-title{
  font-size:clamp(26px,3.4vw,40px);line-height:1.28;font-weight:800;letter-spacing:-.5px;
  max-width:920px;word-break:break-word;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:14px;color:var(--text-2);
}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6C1DA}
.post-hero-line{height:4px;border-radius:4px 4px 0 0;background:var(--brand-grad);margin-top:26px;max-width:180px}

/* ============ 正文布局 ============ */
.page-main{padding:44px 0 0;background:#fff}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--shadow-sm);
}
.post-body{font-size:17px;line-height:1.9;color:var(--text-1);max-width:780px}
.post-body p{margin:0 0 1.2em}
.post-body h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:700;
  margin:42px 0 16px;padding-left:18px;scroll-margin-top:96px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:3px;
  background:var(--brand-grad);
}
.post-body h3{font-size:20px;line-height:1.5;margin:30px 0 12px;scroll-margin-top:96px}
.post-body h4{font-size:17px;margin:22px 0 10px}
.post-body a{
  color:var(--brand-1);text-decoration:underline;text-decoration-thickness:1px;
  text-underline-offset:3px;text-decoration-color:rgba(122,92,255,.5);
}
.post-body a:hover{color:#5A38F0;font-weight:600;text-decoration-color:#5A38F0}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:0}
.post-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.post-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--brand-1);
}
.post-body ol{counter-reset:li;padding-left:0}
.post-body ol li{position:relative;padding-left:30px;margin-bottom:8px;counter-increment:li}
.post-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.24em;
  width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand-1);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.post-body blockquote{
  position:relative;margin:24px 0;padding:18px 22px 18px 26px;
  background:#F5F2FF;border-radius:0 16px 16px 0;color:#3B3358;
}
.post-body blockquote::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;border-radius:16px 0 0 16px;
  background:var(--brand-grad);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{
  width:100%;height:auto;border-radius:16px;margin:22px 0 8px;object-fit:cover;
}
.post-body figure{margin:22px 0}
.post-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:2px}
.post-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;
  border-radius:14px;overflow:hidden;
}
.post-body thead th{
  background:linear-gradient(120deg,rgba(122,92,255,.14),rgba(193,59,232,.12));
  text-align:left;font-weight:700;color:var(--text-1);
}
.post-body th,.post-body td{padding:12px 14px;border:none}
.post-body tbody tr:nth-child(odd){background:#FAF9FE}
.post-body tbody tr:nth-child(even){background:#fff}
.post-body hr{border:none;height:1px;background:var(--line);margin:32px 0}
.post-body code{
  background:var(--brand-soft);color:#5A38F0;border-radius:6px;padding:2px 6px;font-size:14.5px;
}
.post-body pre{
  background:#1B1636;color:#EDEAFF;border-radius:16px;padding:18px;overflow:auto;font-size:14px;
}

/* 空状态 */
.empty-state{
  max-width:780px;padding:56px 24px;text-align:center;border:1px dashed var(--line);
  border-radius:var(--r-md);background:var(--bg-soft);
}
.empty-state .ring{
  width:84px;height:84px;margin:0 auto 20px;border-radius:50%;background:var(--brand-grad);
  opacity:.16;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:4px;height:15px;border-radius:3px;background:var(--brand-grad);
}
.toc-list li{margin-bottom:4px}
.toc-list a{
  display:block;padding:8px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.6;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--text-1)}
.toc-list a.lv3{padding-left:24px;font-size:13.5px}
.toc-list a.on{
  color:var(--brand-1);font-weight:600;background:var(--brand-soft);
  border-left-color:var(--brand-1);
}
.toc-empty{font-size:13.5px;color:var(--text-2);line-height:1.8}

.mini-list li + li{margin-top:14px}
.mini-item{display:flex;gap:12px;align-items:flex-start;transition:transform .22s var(--ease)}
.mini-item:hover{transform:translateY(-2px)}
.mini-item img{width:72px;height:72px;border-radius:12px;object-fit:cover;flex-shrink:0}
.mini-item .mini-t{
  font-size:14.5px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-item .mini-c{font-size:12.5px;color:var(--text-2);margin-top:4px}
.side-cta{display:block;width:100%;text-align:center}

/* ============ 文末区 ============ */
.post-foot{margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:#5A38F0;font-size:13px;font-weight:600;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.tag:hover{background:var(--brand-grad);color:#fff}

.nav-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.nav-pair a{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;color:var(--text-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-pair a:hover{transform:translateY(-4px);border-color:rgba(122,92,255,.45);box-shadow:var(--shadow-md);color:var(--text-1)}
.nav-pair .dir{font-size:12.5px;color:var(--text-2);font-weight:600;letter-spacing:.4px}
.nav-pair .ttl{
  margin-top:6px;font-size:15.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.nav-pair .next{text-align:right}

/* ============ 相关推荐 ============ */
.section{padding:80px 0}
.section-soft{background:var(--bg-soft)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.25}
.sec-head h2::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:3px;
  background:var(--brand-grad);margin-right:12px;vertical-align:-3px;
}
.sec-head p{margin-top:10px;color:var(--text-2);font-size:15px}
.sec-link{font-size:14.5px;font-weight:600;color:var(--brand-1);display:inline-flex;align-items:center;gap:6px}
.sec-link .arw{transition:transform .22s var(--ease)}
.sec-link:hover .arw{transform:translateX(4px)}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card-item{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card-item:hover{transform:translateY(-4px);border-color:rgba(122,92,255,.45);box-shadow:var(--shadow-md)}
.post-card-item .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.post-card-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card-item:hover .thumb img{transform:scale(1.04)}
.post-card-item .thumb .cat{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.92);color:#5A38F0;
}
.post-card-item .body{padding:20px;display:flex;flex-direction:column;flex:1}
.post-card-item h3{
  font-size:17px;line-height:1.45;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-item .ex{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-item .foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}
.post-card-item .foot .more{color:var(--brand-1);font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ============ 收尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:52px 44px;
  background:var(--ink-deep);
  border:1px solid rgba(122,92,255,.4);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:520px;height:520px;
  background:radial-gradient(circle,rgba(122,92,255,.42),transparent 62%);
  pointer-events:none;
}
.cta-band h2{position:relative;color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.cta-band p{position:relative;margin-top:10px;color:rgba(255,255,255,.78);font-size:15px}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;margin-top:96px;background:var(--ink-deep);
  color:rgba(255,255,255,.78);padding:64px 0 0;
}
.site-footer::before{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;pointer-events:none;
  background:radial-gradient(circle,rgba(193,59,232,.16),transparent 62%);
}
.footer-top{
  position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14.5px;line-height:1.8;max-width:340px;color:rgba(255,255,255,.72)}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.footer-badges span{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:12.5px;font-weight:500;color:#fff;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);
}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);flex-wrap:wrap;
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:rgba(255,255,255,.6)}
.to-top{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(122,92,255,.75);color:#fff;font-size:16px;line-height:1;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .command-search input{width:186px}
  .card-grid{gap:20px}
}
@media (max-width:991px){
  .main-nav,.command-search,.quick-link{display:none}
  .nav-toggle,.search-icon-btn{display:flex}
  .sidebar{position:static}
  .post-card{padding:24px}
  .post-body{font-size:16.5px;max-width:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px 28px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .header-inner{height:60px;gap:12px}
  .brand-text{font-size:16px}
  .page-main{padding:28px 0 0}
  .post-card{padding:20px;border-radius:22px}
  .post-title{font-size:26px}
  .post-body h2{font-size:22px}
  .post-body h3{font-size:18px}
  .nav-pair{grid-template-columns:1fr}
  .nav-pair .next{text-align:left}
  .cta-band{padding:32px 22px;border-radius:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{margin-top:64px;padding-top:48px}
  .section{padding:52px 0}
  .empty-state{padding:38px 18px}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .post-meta{font-size:13px;gap:8px}
  .side-card{padding:18px}
  .btn-brand,.btn-soft,.btn-ghost{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
/* ========================= 设计变量 ========================= */
:root{
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --brand-soft:#F3F1FB;
  --brand-deep:#5A3FD6;
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --line-strong:#DCD4FF;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --text-3:#9A93B4;
  --white-78:rgba(255,255,255,.78);

  --radius-btn:13px;
  --radius-card:20px;
  --radius-big:28px;
  --radius-pill:999px;
  --radius-img:16px;

  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);

  --ease:cubic-bezier(.22,.61,.36,1);

  /* Bootstrap 变量覆盖 */
  --bs-primary:#7A5CFF;
  --bs-secondary:#C13BE8;
  --bs-body-color:#241E3D;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E9E6F5;
  --bs-link-color:#5A3FD6;
  --bs-link-hover-color:#C13BE8;
  --bs-border-radius:14px;
  --bs-border-radius-lg:20px;
  --bs-font-sans-serif:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}

/* ========================= 基础重置 ========================= */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;}
p{margin:0;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(122,92,255,.22);}

/* ========================= 容器与区块 ========================= */
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
@media(min-width:1400px){.wrap{max-width:1320px;}}
.section{padding:88px 0;}
.section-soft{background:var(--bg-soft);}
.section-tight{padding:64px 0;}
@media(max-width:991px){.section{padding:60px 0;} .section-tight{padding:48px 0;}}
@media(max-width:575px){.wrap{padding:0 16px;} .section{padding:48px 0;}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.3px;position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:var(--brand-grad);}
.section-head .sub{font-size:15px;color:var(--text-2);margin-top:10px;}
.section-head .link-more{font-size:14px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.section-head .link-more span{transition:transform .22s var(--ease);display:inline-block;}
.section-head .link-more:hover span{transform:translateX(4px);}

/* ========================= 顶部命令栏 ========================= */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{flex:0 0 auto;display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;}
.brand-mark{width:28px;height:28px;border-radius:10px;background:var(--brand-grad);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;line-height:1;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;}

.main-nav{flex:1 1 auto;display:flex;justify-content:center;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{position:relative;display:inline-block;padding:10px 13px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:10px;}
.main-nav a::after{content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;background:var(--brand-grad);transform:translateX(-50%);transition:width .22s var(--ease);}
.main-nav a:hover{color:var(--text-1);}
.main-nav a:hover::after{width:20px;}
.main-nav a.active{color:var(--text-1);font-weight:600;}
.main-nav a.active::after{width:20px;}

.header-tools{flex:0 0 auto;display:flex;align-items:center;gap:12px;}
.command-search{position:relative;display:flex;align-items:center;gap:8px;height:40px;width:272px;padding:0 10px 0 34px;background:var(--brand-soft);border:1px solid transparent;border-radius:12px;transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.command-search .search-ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-2);}
.command-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px;}
.command-search input::placeholder{color:var(--text-3);}
.command-search .kbd{flex:0 0 auto;font-size:11px;color:var(--text-2);background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 5px;line-height:1.4;}
.command-search:focus-within{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18);}
.quick-link{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.quick-link:hover{color:var(--brand-1);}
.quick-link .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-task);display:inline-block;}

.search-toggle,.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;align-items:center;justify-content:center;color:var(--text-1);transition:border-color .22s var(--ease),color .22s var(--ease);}
.search-toggle:hover,.nav-toggle:hover{border-color:var(--brand-1);color:var(--brand-1);}

/* ========================= 按钮体系 ========================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);}
.btn-primary-cta{position:relative;overflow:hidden;color:#fff;background:var(--brand-grad);box-shadow:var(--shadow-brand);}
.btn-primary-cta::after{content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.45),rgba(255,255,255,0));transform:skewX(-18deg);transition:left .4s var(--ease);}
.btn-primary-cta:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);}
.btn-primary-cta:hover::after{left:130%;}
.btn-ghost{color:#fff;background:transparent;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.12);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--text-1);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand-1);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px;}
.btn-lg{height:52px;padding:0 28px;border-radius:14px;font-size:16px;}
.header-tools .btn{height:40px;padding:0 16px;font-size:14px;border-radius:12px;}

/* ========================= 页头 ========================= */
.page-hero{position:relative;overflow:hidden;color:#fff;padding:42px 0 68px;
  background-image:linear-gradient(120deg,rgba(21,17,48,.88) 0%,rgba(122,92,255,.64) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;}
.page-hero::before{content:"";position:absolute;right:-140px;bottom:-280px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.2),rgba(255,255,255,0) 68%);}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--brand-grad);}
.page-hero .hero-inner{position:relative;z-index:2;max-width:860px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.45;}
.crumb .current{color:#fff;font-weight:500;}
.page-hero h1{font-size:clamp(28px,3.8vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.5px;margin-bottom:18px;}
.page-hero .lead{font-size:17px;line-height:1.85;color:var(--white-78);max-width:60ch;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media(max-width:575px){
  .page-hero{padding:32px 0 52px;}
  .hero-actions .btn{width:100%;}
}

/* ========================= 数据徽章带 ========================= */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-44px;position:relative;z-index:5;}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.stat-card .num{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-card .lbl{font-size:13.5px;color:var(--text-2);margin-top:8px;}
@media(max-width:991px){.stat-strip{grid-template-columns:repeat(2,1fr);margin-top:-32px;}}
@media(max-width:575px){.stat-strip{gap:14px;}.stat-card{padding:18px;}}

/* ========================= 主体两栏 ========================= */
.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:36px;align-items:start;}
@media(max-width:991px){.layout{grid-template-columns:1fr;gap:28px;}}

.toc-card{position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm);}
.toc-card h2{font-size:16px;font-weight:600;margin-bottom:6px;}
.toc-card .toc-hint{font-size:12.5px;color:var(--text-3);margin-bottom:14px;}
.toc-list{display:grid;gap:4px;}
.toc-list a{position:relative;display:block;padding:9px 12px;font-size:14px;color:var(--text-2);border-radius:10px;transition:background .22s var(--ease),color .22s var(--ease);}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.toc-list a.active{background:linear-gradient(90deg,rgba(122,92,255,.12),rgba(193,59,232,.04));color:var(--brand-deep);font-weight:600;}
.toc-list a.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--brand-grad);}
.toc-cta{margin-top:18px;display:block;text-align:center;height:42px;line-height:40px;border-radius:12px;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--text-1);}
.toc-cta:hover{border-color:var(--brand-1);color:var(--brand-deep);}
@media(max-width:991px){.toc-card{position:static;}}

/* ========================= 时间线步骤卡 ========================= */
.timeline{display:grid;gap:0;}
.tl-item{position:relative;padding-left:66px;padding-bottom:26px;}
.tl-item::before{content:"";position:absolute;left:19px;top:50px;bottom:-6px;width:2px;border-radius:2px;background:linear-gradient(180deg,rgba(122,92,255,.35),rgba(193,59,232,.05));}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-dot{position:absolute;left:0;top:6px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-size:13.5px;font-weight:700;color:var(--brand-deep);
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);background-origin:border-box;background-clip:padding-box,border-box;border:2px solid transparent;
  box-shadow:0 6px 16px -8px rgba(122,92,255,.5);}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 26px;box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-md);}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:16px;}
.step-card figure{margin:0;border-radius:var(--radius-img);overflow:hidden;background:var(--brand-soft);}
.step-card figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);}
.step-card figcaption{font-size:12.5px;color:var(--text-3);margin-top:10px;}
@media(max-width:575px){
  .tl-item{padding-left:48px;}
  .tl-item::before{left:15px;}
  .tl-dot{width:32px;height:32px;font-size:12px;}
  .step-card{padding:18px;}
}

/* ========================= 标签与徽章 ========================= */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:500;background:var(--brand-soft);color:var(--brand-deep);}
.tag.task{background:rgba(47,227,176,.16);color:#0E8C6B;}
.tag.reward{background:rgba(255,194,75,.22);color:#8A5A00;}
.tag.line{background:#fff;border:1px solid var(--line-strong);color:var(--brand-deep);}

/* ========================= 清单与误区 ========================= */
.check-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:26px;}
@media(max-width:991px){.check-grid{grid-template-columns:1fr;}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);padding:32px;box-shadow:var(--shadow-sm);}
.panel h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.panel .panel-sub{font-size:14px;color:var(--text-2);margin-bottom:22px;}
.check-list{display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.75;color:var(--text-1);}
.check-list .ico{flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:rgba(47,227,176,.18);color:#0E8C6B;display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px;}
.check-list .txt small{display:block;font-size:13.5px;color:var(--text-2);margin-top:2px;}
.warn-list{display:grid;gap:16px;}
.warn-list li{border-left:3px solid var(--accent-reward);padding-left:14px;}
.warn-list strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:4px;}
.warn-list span{font-size:14px;color:var(--text-2);line-height:1.8;}
@media(max-width:575px){.panel{padding:22px;border-radius:24px;}}

/* ========================= FAQ ========================= */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);}
.faq-item summary{display:flex;align-items:center;gap:14px;padding:20px 22px;cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{flex:0 0 32px;width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:13px;font-weight:700;}
.faq-plus{position:relative;flex:0 0 16px;width:16px;height:16px;margin-left:auto;transition:transform .22s var(--ease);}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;}
.faq-plus::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-plus::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item[open] .faq-plus{transform:rotate(45deg);}
.faq-item[open] .faq-plus::before,.faq-item[open] .faq-plus::after{background:var(--brand-1);}
.faq-body{padding:0 22px 22px 68px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:76ch;}
@media(max-width:575px){
  .faq-item summary{padding:16px;gap:10px;font-size:15.5px;}
  .faq-body{padding:0 16px 18px 16px;}
}

/* ========================= CTA 带 ========================= */
.cta-band{position:relative;overflow:hidden;border-radius:32px;padding:48px;color:#fff;background:var(--brand-grad);display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--shadow-brand);}
.cta-band::before{content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.28),rgba(255,255,255,0) 70%);}
.cta-band .cta-text{position:relative;z-index:2;max-width:52ch;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.86);}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
@media(max-width:991px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 26px;border-radius:26px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;}
}

/* ========================= 页脚 ========================= */
.site-footer{position:relative;overflow:hidden;background:var(--ink-deep);color:var(--white-78);padding:72px 0 0;margin-top:96px;}
.site-footer::before{content:"";position:absolute;right:-180px;top:-240px;width:560px;height:560px;border-radius:50%;background:var(--brand-grad);opacity:.1;}
.site-footer .wrap{position:relative;z-index:2;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.site-footer .brand{color:#fff;}
.site-footer .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:38ch;margin:16px 0 18px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;}
.footer-badges span{font-size:12px;padding:5px 12px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.78);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:52px;padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}
.to-top{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:16px;border:1px solid transparent;
  background-image:linear-gradient(var(--ink-deep),var(--ink-deep)),var(--brand-grad);background-origin:border-box;background-clip:padding-box,border-box;
  transition:background-image .22s var(--ease),transform .22s var(--ease);}
.to-top:hover{background-image:var(--brand-grad),var(--brand-grad);color:#fff;transform:translateY(-2px);}
@media(max-width:991px){.footer-top{grid-template-columns:1fr 1fr;}}
@media(max-width:575px){.footer-top{grid-template-columns:1fr;gap:26px;}.site-footer{padding-top:52px;margin-top:64px;}}

/* ========================= 移动端导航与搜索浮层 ========================= */
@media(max-width:991px){
  .header-inner{height:60px;gap:12px;}
  .command-search,.quick-link{display:none;}
  .search-toggle,.nav-toggle{display:inline-flex;}
  .main-nav{position:absolute;left:16px;right:16px;top:68px;display:none;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-md);padding:10px;}
  .main-nav.open{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav a{padding:12px 14px;font-size:15px;border-radius:12px;}
  .main-nav a::after{display:none;}
  .main-nav a:hover{background:var(--brand-soft);}
  .main-nav a.active{background:var(--brand-soft);color:var(--brand-deep);}
}
@media(max-width:767px){
  .header-tools .btn{display:none;}
  .brand-text{font-size:16px;}
}
.search-overlay{position:fixed;inset:0;z-index:80;display:none;background:rgba(21,17,48,.55);padding:76px 16px 0;}
.search-overlay.open{display:block;}
.search-panel{max-width:560px;margin:0 auto;background:#fff;border-radius:20px;padding:18px;box-shadow:0 24px 60px -20px rgba(20,16,43,.5);}
.search-panel form{display:flex;align-items:center;gap:10px;height:48px;background:var(--brand-soft);border:1px solid transparent;border-radius:14px;padding:0 14px;}
.search-panel form:focus-within{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18);}
.search-panel input{flex:1 1 auto;border:0;background:transparent;outline:none;font-size:15px;}
.search-panel .close-row{display:flex;justify-content:flex-end;margin-top:12px;}
.search-panel .close-row button{font-size:14px;color:var(--text-2);padding:8px 12px;border-radius:10px;}
.search-panel .close-row button:hover{background:var(--brand-soft);color:var(--brand-deep);}

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

/* roulang page: category2 */
:root{
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);
  --bs-primary:#7A5CFF;
  --bs-body-bg:#FFFFFF;
  --bs-body-color:#241E3D;
  --bs-body-font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --bs-border-radius:14px;
  --bs-link-color:#5B3DD8;
  --bs-link-hover-color:#7A5CFF;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s cubic-bezier(.22,.61,.36,1)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.wrap{max-width:1320px}}

/* ============ 按钮体系 ============ */
.btn-grad,.btn-soft,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:14px;
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s cubic-bezier(.22,.61,.36,1),background .22s cubic-bezier(.22,.61,.36,1),filter .22s cubic-bezier(.22,.61,.36,1);
  position:relative;overflow:hidden;
}
.btn-grad{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand)}
.btn-grad::after{
  content:"";position:absolute;top:-60%;left:-70%;width:50%;height:220%;
  background:linear-gradient(120deg,rgba(255,255,255,0),rgba(255,255,255,.42),rgba(255,255,255,0));
  transform:skewX(-18deg);transition:left .45s ease;
}
.btn-grad:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 34px -10px rgba(122,92,255,.55)}
.btn-grad:hover::after{left:130%}
.btn-soft{background:#fff;color:var(--text-1);border-color:var(--line)}
.btn-soft:hover{border-color:#C9BCF8;color:#5B3DD8;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.btn-lg{height:52px;padding:0 30px;font-size:17px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(20,16,43,.02);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:10px;background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;line-height:1;
  box-shadow:0 6px 14px -6px rgba(122,92,255,.7);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-1);white-space:nowrap}
.main-nav{margin-left:6px}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{
  position:relative;display:block;padding:10px 13px;border-radius:10px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.main-nav a:hover{color:var(--text-1)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--text-1);font-weight:600}
.main-nav a.active::after{transform:scaleX(1);left:50%;right:auto;width:20px;margin-left:-10px}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  position:relative;display:flex;align-items:center;height:40px;width:216px;
  background:#F3F1FB;border-radius:12px;padding:0 10px 0 36px;
  border:1px solid transparent;transition:all .22s cubic-bezier(.22,.61,.36,1);
}
.command-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:#8C82AE;fill:none;stroke-width:1.8}
.command-search input{width:100%;height:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text-1)}
.command-search input::placeholder{color:#9A93B4}
.command-search:focus-within{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18)}
.kbd{
  flex:0 0 auto;font-size:11px;font-weight:500;color:var(--text-2);background:#fff;
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;line-height:1.4;
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 10px;
  font-size:14px;color:var(--text-2);border-radius:10px;
}
.quick-link:hover{color:#5B3DD8;background:#F6F4FE}
.quick-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);margin:3px auto;transition:all .2s ease}
.nav-drawer{display:none;padding:8px 0 18px}
.nav-drawer.open{display:block}
.nav-drawer ul{display:grid;gap:4px}
.nav-drawer a{display:block;padding:12px 14px;border-radius:12px;font-size:16px;color:var(--text-2)}
.nav-drawer a.active{color:#5B3DD8;background:#F5F2FF;font-weight:600}
.drawer-actions{display:flex;gap:10px;margin-top:14px}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;border-radius:12px;background:#F3F1FB;padding:0 14px;flex:1}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}

/* ============ 页头横幅 ============ */
.banner{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(122,92,255,.84) 0%,rgba(193,59,232,.70) 100%);
}
.banner::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--brand-grad)}
.banner-inner{position:relative;z-index:2;padding:56px 24px 60px;max-width:1240px;margin:0 auto}
@media(min-width:1400px){.banner-inner{max-width:1320px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:18px}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:#fff}
.crumbs span{color:rgba(255,255,255,.5)}
.crumbs em{font-style:normal;color:#fff;font-weight:600}
.banner h1{
  font-size:clamp(28px,4.2vw,48px);line-height:1.16;font-weight:800;letter-spacing:-.5px;
  max-width:900px;
}
.banner-sub{margin-top:16px;font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.86);max-width:640px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.3px}
.section-head h2::before{
  content:"";display:block;width:44px;height:4px;border-radius:3px;background:var(--brand-grad);margin-bottom:16px;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:620px}
.head-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:#5B3DD8}
.head-link:hover{gap:10px;color:#7A5CFF}

/* ============ 模式大卡 ============ */
.mode-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mode-card{
  display:flex;gap:22px;padding:20px;background:#fff;
  border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s cubic-bezier(.22,.61,.36,1),border-color .22s cubic-bezier(.22,.61,.36,1);
}
.mode-card:hover{transform:translateY(-4px);border-color:#D6CCFA;box-shadow:var(--shadow-md)}
.mode-figure{flex:0 0 40%;border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:var(--bg-soft)}
.mode-figure img{width:100%;height:100%;object-fit:cover}
.mode-body{flex:1 1 60%;min-width:0;display:flex;flex-direction:column}
.mode-tag{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;color:#5B3DD8;background:#F1EDFF;border-radius:999px;padding:4px 12px;line-height:1.5}
.mode-body h3{margin-top:12px;font-size:19px;font-weight:600;line-height:1.45}
.mode-body p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.stat-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:14px}
.stat-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  color:#4A3A9E;background:#F5F2FF;border-radius:999px;padding:5px 12px;line-height:1.5;
}
.stat-chip i{width:6px;height:6px;border-radius:50%;background:var(--brand-grad);display:block}

/* ============ 速览表 ============ */
.table-scroll{overflow-x:auto;scrollbar-width:none;border-radius:20px;border:1px solid var(--line);background:#fff}
.table-scroll::-webkit-scrollbar{display:none}
.quick-table{width:100%;min-width:620px;border-collapse:collapse;font-size:15px}
.quick-table th{
  text-align:left;padding:16px 22px;font-size:13.5px;font-weight:600;color:#4A3A9E;
  background:linear-gradient(120deg,rgba(122,92,255,.10),rgba(193,59,232,.08));white-space:nowrap;
}
.quick-table td{padding:16px 22px;border-top:1px solid var(--line);color:var(--text-2)}
.quick-table td:first-child{color:var(--text-1);font-weight:600}
.quick-table tbody tr:nth-child(even){background:#FAF9FE}
.quick-table tbody tr:hover{background:#F5F2FF}

/* ============ 数据带 ============ */
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.data-card{
  background:#fff;border:1px solid #EFEBFB;border-radius:18px;padding:22px;
  box-shadow:var(--shadow-sm);transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s cubic-bezier(.22,.61,.36,1);
}
.data-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.data-num{
  font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.data-label{margin-top:8px;font-size:13.5px;color:var(--text-2)}

/* ============ 场景选择 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-item{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px 24px;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s cubic-bezier(.22,.61,.36,1),border-color .22s cubic-bezier(.22,.61,.36,1);
}
.scene-item:hover{transform:translateY(-4px);border-color:#D6CCFA;box-shadow:var(--shadow-md)}
.scene-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(120deg,rgba(122,92,255,.14),rgba(193,59,232,.12));color:#5B3DD8;
  font-size:17px;font-weight:800;
}
.scene-item h3{font-size:17px;font-weight:600;line-height:1.5}
.scene-item p{margin-top:8px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.scene-item strong{color:#4A3A9E;font-weight:600}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:940px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item.open{border-color:#D6CCFA;box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;background:transparent;border:0;font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-num{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  font-size:13.5px;font-weight:700;color:#5B3DD8;background:#F3F0FF;
}
.faq-plus{
  margin-left:auto;flex:0 0 20px;position:relative;width:20px;height:20px;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:#8C82AE;border-radius:2px;
  transition:transform .28s cubic-bezier(.22,.61,.36,1),background .28s ease;
}
.faq-plus::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-plus::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-plus::before{background:#5B3DD8}
.faq-item.open .faq-plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:none;padding:0 24px 22px 72px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:76ch}
.faq-item.open .faq-a{display:block}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:44px 44px;
  background:var(--ink-deep);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;border-radius:28px;padding:1px;
  background:linear-gradient(120deg,rgba(122,92,255,.9),rgba(193,59,232,.7));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(193,59,232,.35),rgba(193,59,232,0) 70%);
}
.cta-band h2{position:relative;z-index:2;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{position:relative;overflow:hidden;background:var(--ink-deep);color:rgba(255,255,255,.78);margin-top:96px}
.site-footer::before{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.12),rgba(122,92,255,0) 70%);pointer-events:none;
}
.site-footer .wrap{position:relative;z-index:2}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:72px 0 44px}
.footer-brand .brand-text{color:#fff}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:330px}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.footer-badges span{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:500;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 12px;
}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.2px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.12);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:rgba(255,255,255,.56)}
.to-top{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:#fff;border:1px solid rgba(255,255,255,.35);font-size:16px;
  transition:all .22s cubic-bezier(.22,.61,.36,1);
}
.to-top:hover{background:var(--brand-grad);border-color:transparent;transform:translateY(-2px);box-shadow:var(--shadow-brand)}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .data-strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:grid}
  .nav-tools .command-search,.nav-tools .quick-link{display:none}
  .mode-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:repeat(2,1fr);gap:28px;padding:56px 0 36px}
  .section{padding:64px 0}
  .banner-inner{padding:44px 24px 48px}
}
@media(max-width:575px){
  .wrap{padding:0 18px}
  .mode-card{flex-direction:column;gap:16px;padding:16px;border-radius:20px}
  .mode-figure{flex:1 1 auto;width:100%;aspect-ratio:16/10}
  .data-strip{grid-template-columns:1fr;gap:14px}
  .cta-band{flex-direction:column;align-items:stretch;padding:30px 22px;border-radius:22px}
  .cta-actions .btn-grad,.cta-actions .btn-ghost{width:100%}
  .banner-actions .btn-grad,.banner-actions .btn-ghost{width:100%}
  .faq-q{padding:16px 18px;font-size:15.5px;gap:12px}
  .faq-a{padding:0 18px 18px 18px}
  .section-head{margin-bottom:26px}
  .footer-top{grid-template-columns:1fr;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category3 */
:root{
  --bs-primary:#7A5CFF;
  --bs-body-font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --bs-border-radius:14px;
  --bs-link-color:#7A5CFF;
  --bs-link-hover-color:#C13BE8;
  --bs-body-color:#241E3D;
  --bs-body-bg:#FFFFFF;
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --brand-soft:#F3F1FB;
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --r-btn:13px;
  --r-card:20px;
  --r-big:28px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  color:var(--text-1);
  background:#fff;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-1);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-2)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.wrap{max-width:1320px}}
.sec{padding:72px 0}
@media(min-width:992px){.sec{padding:104px 0}}
.sec-soft{background:var(--bg-soft)}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 22px -14px rgba(40,26,110,.35)}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:10px;
  background:var(--brand-grad);
  color:#fff;font-size:15px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-brand);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-1);white-space:nowrap}
.brand:hover .brand-text{color:var(--brand-1)}

.main-nav{flex:1 1 auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--brand-grad);
  transition:width .22s var(--ease);
}
.main-nav a:hover{color:var(--text-1)}
.main-nav a:hover::after{width:20px}
.main-nav a.active{color:var(--brand-1);font-weight:600}
.main-nav a.active::after{width:20px}

.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.cmd-search{
  position:relative;display:flex;align-items:center;
  height:40px;width:230px;border-radius:12px;background:var(--brand-soft);
  border:1px solid transparent;transition:all .22s var(--ease);
}
.cmd-search svg{position:absolute;left:14px;width:16px;height:16px;stroke:var(--text-2);fill:none;stroke-width:2}
.cmd-search input{
  width:100%;height:100%;border:0;background:transparent;
  padding:0 46px 0 40px;font-size:14px;color:var(--text-1);outline:none;border-radius:12px;
}
.cmd-search input::placeholder{color:#9A93B3}
.cmd-search:focus-within{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18)}
.cmd-kbd{
  position:absolute;right:10px;font-size:11px;font-weight:600;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 6px;line-height:1.5;
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;
  border-radius:12px;font-size:14px;font-weight:500;color:var(--text-2);
  transition:all .22s var(--ease);
}
.quick-link:hover{background:var(--brand-soft);color:var(--brand-1)}
.quick-link .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-task);box-shadow:0 0 0 4px rgba(47,227,176,.18)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px;border-radius:14px}
.btn-primary-grad{
  position:relative;overflow:hidden;color:#fff;background:var(--brand-grad);box-shadow:var(--shadow-brand);
}
.btn-primary-grad::before{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);
  transform:skewX(-18deg);transition:left .45s var(--ease);
}
.btn-primary-grad:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 34px -12px rgba(122,92,255,.6)}
.btn-primary-grad:hover::before{left:130%}
.btn-outline-soft{
  background:#fff;border-color:var(--line);color:var(--text-1);
}
.btn-outline-soft:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.42);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:.22s var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ Page hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:250px;display:flex;align-items:center;
  background-image:linear-gradient(120deg,rgba(122,92,255,.86),rgba(193,59,232,.8)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;bottom:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.35),transparent 68%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.85)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .cur{color:#fff;font-weight:600}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.38);
  font-size:13px;font-weight:600;color:#fff;margin-bottom:16px;
}
.page-hero h1{
  color:#fff;font-size:clamp(28px,3.6vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.5px;
  max-width:820px;
}
.hero-sub{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.85);max-width:680px}

/* ============ Stat band ============ */
.stat-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--shadow-md);
  padding:26px 20px;margin-top:-56px;position:relative;z-index:5;
}
.stat-band .row{--bs-gutter-x:0}
.stat-item{
  text-align:center;padding:14px 10px;position:relative;
}
.stat-item+.stat-item::before{
  content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:var(--line);
}
.stat-num{
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.1;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{margin-top:8px;font-size:13px;color:var(--text-2);font-weight:500}

/* ============ Section head ============ */
.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,3vw,34px);font-weight:700;line-height:1.25;position:relative;padding-left:18px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:12%;height:76%;width:5px;border-radius:4px;background:var(--brand-grad);
}
.sec-desc{margin-top:10px;color:var(--text-2);font-size:15px;padding-left:18px}
.sec-action{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.sec-action .arw{transition:transform .22s var(--ease)}
.sec-action:hover .arw{transform:translateX(4px)}

/* ============ Reward cards ============ */
.reward-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.reward-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.reward-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--brand-grad);z-index:2;
}
.reward-card.rare-legend::before{background:linear-gradient(120deg,#FFC24B,#FF9A3C)}
.reward-card.rare-epic::before{background:linear-gradient(120deg,#A98BFF,#7A5CFF)}
.reward-card.rare-common::before{background:linear-gradient(120deg,#2FE3B0,#20C9A0)}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#DCD5F7}
.reward-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--brand-soft)}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.reward-card:hover .reward-media img{transform:scale(1.04)}
.reward-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(21,17,48,.05),rgba(21,17,48,.42));
}
.reward-tag{
  position:absolute;left:14px;top:16px;z-index:3;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:700;color:#fff;
  background:rgba(21,17,48,.55);backdrop-filter:blur(4px);
}
.reward-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px}
.reward-body h3{font-size:18px;font-weight:600;line-height:1.45}
.rarity{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
}
.rarity-legend{background:rgba(255,194,75,.18);color:#A66A00;border:1px solid rgba(255,194,75,.55)}
.rarity-epic{background:rgba(169,139,255,.16);color:#5A3BC4;border:1px solid rgba(169,139,255,.55)}
.rarity-common{background:rgba(47,227,176,.16);color:#0E8F72;border:1px solid rgba(47,227,176,.55)}
.reward-text{font-size:14.5px;color:var(--text-2);line-height:1.75}
.reward-meta{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px dashed var(--line);margin-top:auto;
}
.reward-meta .val{font-size:20px;font-weight:800;color:var(--text-1);font-variant-numeric:tabular-nums}
.reward-meta .val small{font-size:13px;font-weight:600;color:var(--text-2);margin-left:4px}
.reward-meta .note{font-size:12.5px;color:var(--text-2)}
.reward-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;margin-top:16px;
}
.reward-link .arw{transition:transform .22s var(--ease)}
.reward-link:hover .arw{transform:translateX(4px)}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#DCD5F7}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--brand-grad);color:#fff;font-weight:800;font-size:15px;
  box-shadow:var(--shadow-brand);margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.75}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background:var(--ink-deep);color:#fff;
  padding:38px 36px;display:flex;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(193,59,232,.35),transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand-grad);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,28px);font-weight:700;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.78);font-size:14.5px;margin-top:8px;position:relative;z-index:2}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.open{border-color:#DCD5F7;box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;padding:20px 22px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-no{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-1);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
}
.faq-ico{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .28s var(--ease);
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-1);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a-inner{
  padding:0 22px 22px 70px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:76ch;
}

/* ============ Footer ============ */
.site-footer{
  position:relative;overflow:hidden;background:var(--ink-deep);color:rgba(255,255,255,.78);
  margin-top:96px;padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.16),transparent 70%);
  pointer-events:none;
}
.footer-top{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:330px}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.footer-badges span{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.85);
}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:24px 0 30px;
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:rgba(255,255,255,.6)}
.to-top{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;
  background:linear-gradient(#151130,#151130) padding-box,var(--brand-grad) border-box;
  color:#fff;font-size:16px;transition:all .22s var(--ease);
}
.to-top:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px)}

/* ============ Mobile nav ============ */
.mobile-drawer{
  display:none;position:fixed;left:16px;right:16px;top:76px;z-index:1040;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 24px 48px -20px rgba(40,26,110,.4);padding:14px;
}
.mobile-drawer.show{display:block;animation:slideDown .24s var(--ease)}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
.mobile-drawer a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15.5px;font-weight:500;color:var(--text-1);
}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-soft);color:var(--brand-1)}
.mobile-drawer .m-cta{margin-top:10px}
.mobile-drawer .m-cta a{
  background:var(--brand-grad);color:#fff;text-align:center;font-weight:600;box-shadow:var(--shadow-brand);
}
.mobile-drawer .m-cta a:hover{color:#fff;filter:brightness(1.06)}

/* ============ Responsive ============ */
@media(max-width:1199px){
  .reward-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:991px){
  .main-nav{display:none}
  .cmd-search{display:none}
  .quick-link{display:none}
  .header-tools .btn-primary-grad{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px}
  .cta-band .cta-actions{width:100%}
  .steps{grid-template-columns:1fr}
  .stat-item+.stat-item::before{display:none}
  .stat-item{width:50%}
}
@media(max-width:767px){
  .wrap{padding:0 18px}
  .sec{padding:56px 0}
  .page-hero .wrap{padding-top:44px;padding-bottom:44px}
  .stat-band{margin-top:-40px;padding:18px 8px}
  .reward-grid{grid-template-columns:1fr}
  .faq-a-inner{padding:0 20px 20px 20px}
  .site-footer{margin-top:64px;padding-top:56px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media(max-width:520px){
  .footer-top{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .btn-lg{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --brand-1:#7A5CFF;
  --brand-2:#C13BE8;
  --brand-grad:linear-gradient(120deg,#7A5CFF 0%,#C13BE8 100%);
  --accent-task:#2FE3B0;
  --accent-reward:#FFC24B;
  --ink-deep:#151130;
  --bg-soft:#F7F6FC;
  --surface:#FFFFFF;
  --line:#E9E6F5;
  --text-1:#241E3D;
  --text-2:#6B6484;
  --shadow-sm:0 1px 2px rgba(20,16,43,.06),0 2px 8px rgba(20,16,43,.04);
  --shadow-md:0 8px 24px -8px rgba(76,44,180,.18);
  --shadow-brand:0 12px 32px -10px rgba(122,92,255,.45);
  --radius-btn:13px;
  --radius-card:20px;
  --radius-lg:28px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#7A5CFF;
  --bs-primary-rgb:122,92,255;
  --bs-body-font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --bs-body-color:#241E3D;
  --bs-body-bg:#FFFFFF;
  --bs-border-radius:14px;
  --bs-link-color:#7A5CFF;
  --bs-link-hover-color:#5B3EE0;
  --bs-border-color:#E9E6F5;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  color:var(--text-1);
  background:var(--surface);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-1);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:#5B3EE0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;}
@media (max-width:767px){.wrap{padding:0 16px;}}

/* ============ 顶部命令栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:-.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;
  border-radius:10px;background:var(--brand-grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 6px 16px -6px rgba(122,92,255,.7);
}
.brand-text{line-height:1;}

.main-nav{margin-left:8px;flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;display:block;
  padding:10px 12px;
  font-size:15px;color:var(--text-2);font-weight:500;
  border-radius:10px;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;border-radius:2px;background:var(--brand-grad);
  transform:translateX(-50%);transition:width .22s var(--ease);
}
.main-nav a:hover{color:var(--text-1);background:#F7F6FC;}
.main-nav a:hover::after{width:20px;}
.main-nav a.active{color:var(--text-1);font-weight:600;}
.main-nav a.active::after{width:20px;}

.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:250px;height:40px;
  background:#F3F1FB;border:1px solid transparent;border-radius:12px;
  transition:all .22s var(--ease);
}
.nav-search svg{margin-left:14px;flex:0 0 auto;opacity:.55;}
.nav-search input{
  flex:1;height:100%;border:0;background:transparent;outline:none;
  padding:0 8px 0 8px;font-size:14px;color:var(--text-1);
}
.nav-search input::placeholder{color:#9C95B5;}
.cmd-kbd{
  margin-right:8px;padding:2px 7px;border-radius:7px;
  background:#fff;border:1px solid var(--line);
  font-size:11px;color:var(--text-2);letter-spacing:.5px;white-space:nowrap;
}
.nav-search:focus-within{
  background:#fff;border-color:var(--brand-1);
  box-shadow:0 0 0 3px rgba(122,92,255,.18);
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--text-2);padding:8px 10px;border-radius:10px;
}
.quick-link:hover{color:var(--brand-1);background:#F7F6FC;}
.quick-link .dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent-task);
  box-shadow:0 0 0 3px rgba(47,227,176,.18);
}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  padding:0 20px;height:46px;line-height:1;
}
.btn-grad{
  position:relative;overflow:hidden;color:#fff;background:var(--brand-grad);
  box-shadow:var(--shadow-brand);
}
.btn-grad::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);
  transform:skewX(-20deg);transition:left .5s var(--ease);
}
.btn-grad:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 36px -12px rgba(122,92,255,.6);}
.btn-grad:hover::after{left:130%;}
.btn-outline-soft{
  background:#fff;color:var(--text-1);border-color:var(--line);
}
.btn-outline-soft:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-sm{height:40px;font-size:14px;padding:0 16px;}
.btn-lg{height:52px;font-size:16px;padding:0 26px;border-radius:14px;}
.btn-ghost{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.4);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.75);}

.nav-cta{height:40px;font-size:14px;padding:0 18px;border-radius:12px;color:#fff;background:var(--brand-grad);box-shadow:var(--shadow-brand);}
.nav-cta:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);}

.menu-toggle,.search-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
  cursor:pointer;color:var(--text-1);
}
.menu-toggle:hover,.search-toggle:hover{border-color:var(--brand-1);color:var(--brand-1);}

/* 移动抽屉 */
.mobile-drawer{
  display:none;position:absolute;left:16px;right:16px;top:calc(100% + 8px);
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-md);padding:12px;z-index:1050;
}
.mobile-drawer.open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;}
.mobile-drawer a{
  display:block;padding:12px 14px;border-radius:12px;
  color:var(--text-1);font-size:15px;font-weight:500;
}
.mobile-drawer a:hover{background:#F7F6FC;color:var(--brand-1);}
.mobile-drawer a.active{background:#F3F1FB;color:var(--brand-1);font-weight:600;}
.mobile-drawer .drawer-cta{margin-top:10px;}
.mobile-drawer .drawer-cta .btn{width:100%;}

.mobile-search{
  display:none;position:fixed;inset:0;z-index:1060;background:rgba(21,17,48,.45);
  padding:88px 16px 16px;
}
.mobile-search.open{display:block;}
.mobile-search .inner{
  background:#fff;border-radius:16px;padding:14px;box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:10px;
}
.mobile-search input{
  flex:1;height:48px;border-radius:14px;border:1px solid var(--line);
  background:#F7F6FC;padding:0 14px;font-size:15px;outline:none;
}
.mobile-search input:focus{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18);}

@media (max-width:1199px){
  .nav-search{width:190px;}
  .quick-link span{display:none;}
}
@media (max-width:991px){
  .main-nav,.nav-search,.quick-link{display:none;}
  .menu-toggle,.search-toggle{display:inline-flex;}
  .header-inner{height:60px;gap:12px;}
  .brand-text{font-size:16px;}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(122,92,255,.86) 0%,rgba(193,59,232,.8) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;
  min-height:250px;
  display:flex;align-items:center;
  padding:52px 0 56px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--brand-grad);
}
.page-hero .glow{
  position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28) 0%,rgba(255,255,255,0) 68%);
  pointer-events:none;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:18px;
}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;}
.crumbs .sep{opacity:.55;}
.crumbs .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(28px,3.8vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.5px;
  max-width:900px;
}
.page-hero .lead{
  margin-top:16px;max-width:760px;
  font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags span{
  padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);
  font-size:13px;color:#fff;
}

/* ============ 主体布局 ============ */
.page-main{padding:64px 0 96px;background:#fff;}
.doc-grid{display:grid;grid-template-columns:280px minmax(0,1fr);gap:40px;align-items:start;}
@media (max-width:991px){
  .doc-grid{grid-template-columns:1fr;gap:28px;}
  .page-main{padding:40px 0 64px;}
}

/* 侧栏快速链接 */
.quick-nav{
  position:sticky;top:88px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-sm);
}
.quick-nav h2{font-size:15px;font-weight:700;margin-bottom:12px;color:var(--text-1);}
.quick-nav ul{display:flex;flex-direction:column;gap:2px;}
.quick-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
}
.quick-nav a .idx{
  font-size:12px;font-variant-numeric:tabular-nums;color:#A79FD0;font-weight:600;
}
.quick-nav a:hover{background:#F7F6FC;color:var(--brand-1);border-left-color:var(--brand-1);}
.quick-nav .side-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;line-height:1.7;color:var(--text-2);
}
@media (max-width:991px){
  .quick-nav{position:static;}
}

/* 文档卡 */
.doc-section{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 30px;margin-bottom:24px;box-shadow:var(--shadow-sm);
  scroll-margin-top:96px;
}
.doc-section h2{
  font-size:22px;line-height:1.35;font-weight:700;
  padding-left:14px;border-left:4px solid transparent;
  border-image:var(--brand-grad) 1;
  margin-bottom:14px;
}
.doc-section h3{font-size:17px;font-weight:600;margin:20px 0 8px;}
.doc-section p{font-size:16px;line-height:1.85;color:var(--text-1);}
.doc-section p + p{margin-top:12px;}
.doc-section .muted{color:var(--text-2);font-size:15px;}
.doc-section a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}

.num-anchor{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:32px;height:32px;border-radius:999px;margin-right:10px;
  background:#F3F1FB;color:var(--brand-1);font-size:13px;font-weight:700;
  vertical-align:middle;font-variant-numeric:tabular-nums;
}

.check-list{margin-top:16px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:16px;
  padding:14px 16px;font-size:15px;line-height:1.75;
}
.check-list .tick{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:rgba(47,227,176,.16);color:#12A87E;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
  margin-top:2px;
}
.check-list b{color:var(--text-1);}

.notice{
  margin-top:18px;padding:16px 18px;border-radius:0 16px 16px 0;
  background:#F7F6FC;border-left:4px solid transparent;
  border-image:var(--brand-grad) 1;
  font-size:15px;line-height:1.8;color:var(--text-1);
}
.notice strong{color:var(--brand-1);}

.doc-media{
  margin-top:20px;border-radius:16px;overflow:hidden;border:1px solid var(--line);
}
.doc-media img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;}
.doc-media figcaption{
  padding:10px 14px;font-size:13px;color:var(--text-2);background:#FAF9FE;text-align:center;
}

/* FAQ 手风琴 */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:6px;}
.faq-item{
  border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:#D9D2F5;box-shadow:var(--shadow-sm);}
.faq-item.open{border-color:#CFC6F2;box-shadow:var(--shadow-md);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  background:transparent;border:0;padding:18px 20px;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.5;
}
.faq-q .qid{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;
  background:#F3F1FB;color:var(--brand-1);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-q .plus{
  margin-left:auto;flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:#8E86B5;border-radius:2px;
}
.faq-q .plus::before{left:50%;top:4px;width:2px;height:14px;transform:translateX(-50%);}
.faq-q .plus::after{top:50%;left:4px;height:2px;width:14px;transform:translateY(-50%);}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s var(--ease);
}
.faq-a .inner{
  padding:0 20px 20px 66px;font-size:15.5px;line-height:1.85;color:var(--text-2);
  max-width:76ch;
}
@media (max-width:575px){
  .faq-a .inner{padding:0 18px 18px 18px;}
  .faq-q{padding:16px;font-size:15.5px;}
  .doc-section{padding:22px 18px;}
}

/* 反馈表单 */
.feedback-form{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap;}
.feedback-form input{
  flex:1 1 260px;height:50px;border-radius:14px;border:1px solid transparent;
  background:#F3F1FB;padding:0 16px;font-size:15px;outline:none;
  transition:all .22s var(--ease);
}
.feedback-form input:focus{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(122,92,255,.18);}
.form-hint{width:100%;font-size:13px;color:var(--text-2);margin-top:4px;}
.form-hint.ok{color:#12A87E;}
.form-hint.warn{color:#C98A00;}

/* 相关栏目 */
.related{margin-top:8px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:22px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;}
.section-head p{font-size:15px;color:var(--text-2);margin-top:6px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575px){.related-grid{grid-template-columns:1fr;}}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:#D9D2F5;box-shadow:var(--shadow-md);}
.rel-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-grad);}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;}
.rel-card .tag{
  position:absolute;left:12px;top:12px;padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);color:#5B3EE0;font-size:12px;font-weight:600;
}
.rel-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-card h3{font-size:17.5px;font-weight:600;line-height:1.45;}
.rel-card p{font-size:14px;color:var(--text-2);line-height:1.7;}
.rel-card .more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-1);
}
.rel-card:hover .more svg{transform:translateX(4px);}
.rel-card .more svg{transition:transform .22s var(--ease);}

/* CTA 带 */
.cta-band{
  margin-top:56px;border-radius:var(--radius-lg);overflow:hidden;position:relative;
  background:var(--ink-deep);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(122,92,255,.35);
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:var(--brand-grad);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,28px);font-weight:700;line-height:1.35;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin-top:8px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-band{padding:32px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* 返回顶部浮动按钮 */
.back-float{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--brand-1);font-size:18px;font-weight:700;cursor:pointer;
  box-shadow:var(--shadow-md);opacity:0;visibility:hidden;
  transition:all .25s var(--ease);
}
.back-float.show{opacity:1;visibility:visible;}
.back-float:hover{background-image:var(--brand-grad);color:#fff;transform:translateY(-2px);}
@media (max-width:575px){.back-float{right:16px;bottom:18px;width:44px;height:44px;}}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:rgba(255,255,255,.78);
  padding:64px 0 24px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.16) 0%,rgba(193,59,232,.06) 45%,rgba(21,17,48,0) 72%);
  pointer-events:none;
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  position:relative;z-index:1;
}
@media (max-width:991px){.footer-top{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:575px){.footer-top{grid-template-columns:1fr;}}
.footer-brand .brand{color:#fff;font-size:17px;}
.footer-brand .brand:hover{color:#fff;}
.footer-desc{margin-top:14px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);max-width:340px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.footer-badges span{
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  font-size:12.5px;color:rgba(255,255,255,.85);
}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  position:relative;z-index:1;
}
.footer-bottom-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6);}
.to-top{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:2px solid transparent;
  background-image:linear-gradient(var(--ink-deep),var(--ink-deep)),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#fff;font-size:16px;transition:all .22s var(--ease);
}
.to-top:hover{background-image:var(--brand-grad);color:#fff;transform:translateY(-2px);}

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