/* roulang page: index */
:root{
  --violet:#5A3FD6;
  --violet-2:#8B5CF6;
  --violet-deep:#2A1B63;
  --space:#14102B;
  --cyan:#2FD7C4;
  --gold:#FFB454;
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --border:#E6E2F7;
  --muted:#6B6590;
  --text:#1B1636;
  --ok:#2FD7C4;
  --warn:#FFB454;
  --err:#E4495E;
  --r-lg:22px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(90,63,214,.10), 0 2px 6px rgba(20,16,43,.06);
  --shadow-hover:0 24px 50px rgba(90,63,214,.17), 0 4px 10px rgba(20,16,43,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--violet);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--cyan)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{border:0;background:none;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

/* 滚动进度 */
.scroll-progress{position:fixed;top:0;left:0;height:4px;width:0;z-index:120;
  background:linear-gradient(90deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);}

/* 侧栏 */
.app-side{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;z-index:100;
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;gap:24px;
  padding:22px 16px 20px;overflow-y:auto;
  scrollbar-width:none;transition:width .26s var(--ease),transform .28s var(--ease);
}
.app-side::-webkit-scrollbar{display:none}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#5A3FD6,#8B5CF6 55%,#2FD7C4);color:#fff;
  box-shadow:0 10px 22px rgba(90,63,214,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.04em;white-space:nowrap}

.side-caption{font-size:11px;letter-spacing:.14em;color:#A9A2C9;padding:0 10px;text-transform:uppercase}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--text);font-size:15px;transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a svg{width:20px;height:20px;flex:0 0 20px;opacity:.75}
.side-nav a:hover{background:#F3F0FF;color:var(--violet)}
.side-nav a:hover svg{opacity:1}
.side-nav a.active{background:#EFEBFF;color:var(--violet);font-weight:600}
.side-nav a.active svg{opacity:1}
.side-nav a.active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--violet);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.side-note{
  border:1px solid var(--border);border-radius:var(--r-md);padding:14px;
  background:linear-gradient(160deg,#FBFAFF,#F2EEFF);font-size:13px;color:var(--muted);line-height:1.7;
}
.side-note strong{display:block;color:var(--text);font-size:14px;margin-bottom:4px}
.side-cta{display:block;text-align:center}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-gold{
  background:linear-gradient(120deg,#FFB454,#FFCE85);color:#221A05;
  box-shadow:0 14px 28px rgba(255,180,84,.32);
}
.btn-gold:hover{color:#221A05;transform:translateY(-2px);box-shadow:0 20px 34px rgba(255,180,84,.4);filter:brightness(1.06)}
.btn-gold:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-line{border:1px solid var(--border);color:var(--violet);background:#fff}
.btn-line:hover{color:var(--violet);border-color:var(--violet);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-violet{background:var(--violet);color:#fff;box-shadow:0 14px 28px rgba(90,63,214,.26)}
.btn-violet:hover{background:#4B32C4;color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* 主区 */
.app-main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.main-inner{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
.section{padding:96px 0}
.section-tint{background:linear-gradient(180deg,#FFFFFF,#F7F5FF)}
.section-dark{background:var(--space);color:#fff}
.section-dark .sec-sub{color:#B9B3DA}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-head.between{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.sec-rule{width:64px;height:3px;border-radius:3px;margin-bottom:18px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454)}
.sec-kicker{font-size:13px;letter-spacing:.16em;color:var(--violet);font-weight:600;margin-bottom:10px}
h2{font-size:clamp(24px,2.8vw,36px);line-height:1.32;font-weight:700;letter-spacing:.01em}
h3{font-size:21px;font-weight:600;line-height:1.4}
.sec-sub{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:640px}

/* 顶部栏（移动） */
.topbar{
  display:none;position:sticky;top:0;z-index:110;height:56px;align-items:center;justify-content:space-between;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--border);
}
.topbar-brand{font-size:15px;font-weight:700;color:var(--text)}
.hamburger{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;color:var(--violet)}
.hamburger:hover{background:#F3F0FF}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(20,16,43,.5);z-index:95}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--space);color:#fff;min-height:80vh;display:flex;align-items:center}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-overlay{position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(90,63,214,.72),rgba(20,16,43,.88) 58%,rgba(47,215,196,.42))}
.hero-band{position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454)}
.hero-inner{position:relative;z-index:3;padding-top:88px;padding-bottom:72px;width:100%}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  font-size:13px;letter-spacing:.06em;color:#EFEBFF;margin-bottom:22px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:block}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.28;font-weight:700;letter-spacing:.02em}
.hero-sub{margin-top:18px;font-size:17px;color:#D8D3F2;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:44px}
.stat{
  display:flex;align-items:baseline;gap:8px;padding:10px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
}
.stat b{font-size:24px;font-weight:700;color:#fff;letter-spacing:.01em}
.stat span{font-size:13px;color:#C9C3E8}
.hero-panel{
  border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);box-shadow:0 30px 60px rgba(8,6,22,.42);
}
.hero-panel img{width:100%;height:190px;object-fit:cover}
.hero-panel-body{padding:18px 20px 20px;background:rgba(20,16,43,.55)}
.hero-row{display:flex;align-items:center;justify-content:space-between;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14px}
.hero-row:last-child{border-bottom:0}
.hero-row span{color:#B9B3DA}
.hero-row strong{color:#fff;font-weight:600;letter-spacing:.02em}

/* 时间线 */
.timeline{position:relative;padding:8px 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--border);transform:translateX(-1px);
}
.tl-item{position:relative;width:50%;padding-right:52px;margin-bottom:28px}
.tl-item:nth-child(even){margin-left:50%;padding-right:0;padding-left:52px}
.tl-node{
  position:absolute;right:-6px;top:30px;width:12px;height:12px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 4px rgba(47,215,196,.18);transition:transform .22s var(--ease);
}
.tl-item:nth-child(even) .tl-node{right:auto;left:-6px}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:24px 26px;
  box-shadow:var(--shadow);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tl-card:hover{transform:translateX(-2px);border-color:var(--violet);box-shadow:var(--shadow-hover)}
.tl-item:hover .tl-node{transform:scale(1.16)}
.tl-badge{
  display:inline-block;padding:3px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--violet);background:#EFEBFF;margin-bottom:12px;
}
.tl-card h3{margin-bottom:8px}
.tl-meta{font-size:13.5px;color:var(--muted);margin-bottom:10px}
.tl-card p:last-child{color:#413A63;font-size:15px}

/* 错位网格 */
.feature-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.fcard{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.fcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.fcard-wide{grid-column:span 6;flex-direction:row;align-items:stretch}
.fcard-wide .fcard-img{width:46%;flex:0 0 46%}
.fcard-img{overflow:hidden}
.fcard-img img{width:100%;height:100%;min-height:190px;object-fit:cover;transition:transform .5s var(--ease)}
.fcard:hover .fcard-img img{transform:scale(1.03)}
.fcard-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px}
.fcard h3{font-size:20px}
.fcard p{color:#413A63;font-size:15px}
.fcard-half{grid-column:span 3}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tag{
  font-size:12.5px;padding:4px 12px;border-radius:999px;color:var(--violet);
  background:#F3F0FF;border:1px solid #E3DDFF;
}
.tag-cyan{color:#0E7F74;background:#E7FBF8;border-color:#C4F2EC}
.tag-gold{color:#8A5A10;background:#FFF4E3;border-color:#FFE1B4}

/* 对比卡 */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:30px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.plan-featured{transform:translateY(-10px);border:1px solid transparent;
  background:
    linear-gradient(#fff,#fff) padding-box,
    linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454) border-box;}
.plan-featured:hover{transform:translateY(-14px)}
.plan-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  padding:4px 16px;border-radius:999px;font-size:12.5px;font-weight:700;color:#221A05;
  background:linear-gradient(120deg,#FFB454,#FFCE85);box-shadow:0 10px 20px rgba(255,180,84,.34);
}
.plan h3{font-size:20px}
.plan-price{font-size:14px;color:var(--muted)}
.plan-list{display:flex;flex-direction:column;gap:12px;font-size:15px}
.plan-list li{display:flex;gap:10px;align-items:flex-start;line-height:1.65}
.plan-list li i{
  flex:0 0 18px;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;margin-top:3px;
  font-size:11px;font-weight:700;background:#E7FBF8;color:#0E7F74;font-style:normal;
}
.plan-list li.off{color:#A9A2C9}
.plan-list li.off i{background:#F1EFFA;color:#A9A2C9}

/* 反馈区 */
.review-wrap{display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:start}
.review-score{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow);text-align:center}
.review-score b{display:block;font-size:52px;line-height:1;font-weight:700;color:var(--violet);letter-spacing:-.02em}
.review-score em{display:block;font-style:normal;font-size:14px;color:var(--muted);margin-top:10px}
.avatars{display:flex;justify-content:center;margin-top:20px}
.avatars span{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;margin-left:-10px;
  font-size:13px;font-weight:700;color:#fff;border:2px solid #fff;
  background:linear-gradient(135deg,#5A3FD6,#8B5CF6);
}
.avatars span:first-child{margin-left:0}
.avatars span:nth-child(3n){background:linear-gradient(135deg,#2FD7C4,#5A3FD6)}
.avatars span:nth-child(4n){background:linear-gradient(135deg,#FFB454,#FF8A3D);color:#221A05}
.review-list{display:flex;flex-direction:column;gap:14px}
.review-item{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-md);padding:20px 22px;transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.review-item:hover{border-color:var(--violet);transform:translateX(3px)}
.review-item .who{flex:0 0 120px;font-size:13.5px;color:var(--muted)}
.review-item .who strong{display:block;color:var(--text);font-size:14.5px;font-weight:600}
.review-item p{font-size:15px;color:#413A63}

/* 资讯卡 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);height:100%;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8D0FA}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:#F1EFFA}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-body h3{color:var(--violet)}
.news-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:#A9A2C9}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--border);
  border-radius:var(--r-lg);background:#fff;
}
.empty-state strong{display:block;font-size:17px;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:18px}

/* 表单 */
.apply-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.apply-copy .sec-head{margin-bottom:26px}
.apply-points{display:flex;flex-direction:column;gap:16px;margin-top:8px}
.apply-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#413A63}
.apply-points i{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;margin-top:4px;
  background:#EFEBFF;color:var(--violet);font-size:12px;font-weight:700;font-style:normal;
}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:#3A3360}
.field label span{color:var(--err);margin-left:2px}
.field input,.field select,.field textarea{
  height:50px;border:1px solid var(--border);border-radius:var(--r-sm);padding:0 16px;
  background:#FCFBFF;color:var(--text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;padding:14px 16px;resize:vertical;min-height:96px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#ADA6CC}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--violet);box-shadow:0 0 0 3px rgba(90,63,214,.16);background:#fff;
}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin:4px 0 20px}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--violet)}
.form-tip{display:none;align-items:center;gap:8px;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
  font-size:14px;background:#E7FBF8;color:#0E7F74;border:1px solid #C4F2EC}
.form-tip.show{display:flex}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.trust-row span{
  font-size:12.5px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:5px 13px;background:#FBFAFF;
}
.form-note{font-size:12.5px;color:#A9A2C9;margin-top:14px}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion{border:0;background:transparent}
.accordion-item{
  border:1px solid var(--border);border-radius:var(--r-md);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:0 1px 3px rgba(20,16,43,.04);
  transition:border-color .22s var(--ease);
}
.accordion-item:hover{border-color:#D8D0FA}
.accordion-item.is-active{border-color:var(--violet)}
.accordion-title{
  position:relative;display:block;padding:19px 58px 19px 22px;border:0;background:#fff;
  color:var(--text);font-size:16.5px;font-weight:600;line-height:1.6;
}
.accordion-title:hover{background:#FBF9FF;color:var(--violet)}
.accordion-title::before{
  content:"+" !important;position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:24px;line-height:1;font-weight:400;color:var(--violet);border:0 !important;
  float:none !important;transition:transform .24s var(--ease);
}
.accordion-item.is-active > .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion-item.is-active > .accordion-title{background:#FBF9FF}
.accordion-content{
  display:none;padding:0 22px 22px 25px !important;border:0 !important;background:#FBF9FF;
  font-size:15px;color:#413A63;line-height:1.85;
}
.accordion-item.is-active > .accordion-content{display:block;border-left:3px solid var(--cyan) !important}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;background:var(--space);color:#fff;border-radius:var(--r-lg);
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(90,63,214,.65),rgba(47,215,196,0) 68%);
}
.cta-band h2{position:relative;z-index:2;color:#fff}
.cta-band p{position:relative;z-index:2;color:#B9B3DA;margin-top:10px;font-size:15px}
.cta-band .btn{position:relative;z-index:2}

/* 页脚 */
.site-footer{background:var(--space);color:#B9B3DA;padding:72px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:15.5px;font-weight:600;margin-bottom:18px}
.site-footer p{font-size:14px;line-height:1.8}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#B9B3DA;font-size:14px;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:15.5px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8079A8;
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .26s var(--ease),transform .26s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* 断点 */
@media (max-width:1439px){
  :root{--side:88px}
  .brand-text,.side-caption,.side-nav a span,.side-note{display:none}
  .app-side{align-items:center;padding:20px 12px}
  .brand{padding:0}
  .side-nav{width:100%}
  .side-nav a{justify-content:center;padding:0}
  .side-nav a.active::before{left:-12px}
  .side-foot{width:100%}
  .side-cta{height:44px;padding:0;font-size:0}
  .side-cta::after{content:"登录";font-size:13px}
  .app-side:hover{width:240px;align-items:stretch;padding:22px 16px;box-shadow:0 20px 60px rgba(20,16,43,.18)}
  .app-side:hover .brand-text,.app-side:hover .side-caption,.app-side:hover .side-nav a span,.app-side:hover .side-note{display:block}
  .app-side:hover .side-nav a{justify-content:flex-start;padding:0 12px}
  .app-side:hover .side-cta{font-size:15px}
  .app-side:hover .side-cta::after{content:""}
}
@media (max-width:1199px){
  .main-inner{padding:0 32px}
  .section{padding:80px 0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr 1fr}
  .plan-featured{transform:none}
  .plan-featured:hover{transform:translateY(-4px)}
  .apply-wrap{grid-template-columns:1fr;gap:36px}
  .review-wrap{grid-template-columns:1fr;gap:28px}
}
@media (max-width:991px){
  .fcard-wide{flex-direction:column}
  .fcard-wide .fcard-img{width:100%;flex:auto}
  .fcard-half{grid-column:span 6}
  .feature-grid{gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--side:280px}
  .app-side{transform:translateX(-100%);align-items:stretch;padding:22px 16px;box-shadow:none}
  .app-side:hover{width:280px}
  body.nav-open .app-side{transform:none;box-shadow:0 0 60px rgba(20,16,43,.35)}
  body.nav-open .nav-mask{display:block}
  .brand{padding:0 6px}
  .brand-text,.side-caption,.side-nav a span,.side-note{display:flex}
  .side-caption{display:block}
  .side-nav a{justify-content:flex-start;padding:0 12px;height:48px;font-size:16px}
  .side-cta{height:48px;font-size:15px;padding:0 24px}
  .side-cta::after{content:""}
  .app-main{margin-left:0}
  .topbar{display:flex}
  .main-inner{padding:0 20px}
  .section{padding:56px 0}
  .hero{min-height:520px}
  .hero-inner{padding-top:56px;padding-bottom:48px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .stat{padding:8px 14px}
  .stat b{font-size:20px}
  .timeline::before{left:13px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding-left:42px;padding-right:0}
  .tl-node,.tl-item:nth-child(even) .tl-node{left:7px;right:auto;top:28px}
  .tl-card{padding:20px}
  .fcard-body{padding:22px}
  .plan-grid{grid-template-columns:1fr;gap:20px}
  .news-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr;gap:0}
  .cta-band{padding:36px 24px;border-radius:var(--r-md)}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-dark .main-inner{padding:0 20px}
  .review-item{flex-direction:column;gap:8px}
  .review-item .who{flex:auto}
}
@media (max-width:559px){
  h1{font-size:28px}
  .hero-stats{gap:8px}
  .stat b{font-size:18px}
  .sec-head.between{flex-direction:column;align-items:flex-start}
  .sec-head.between .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --violet:#5A3FD6;
  --violet-mid:#8B5CF6;
  --violet-deep:#2A1B63;
  --space:#14102B;
  --cyan:#2FD7C4;
  --gold:#FFB454;
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --border:#E6E2F7;
  --text:#1B1636;
  --muted:#6B6590;
  --danger:#E4495E;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(90,63,214,.10),0 2px 6px rgba(20,16,43,.06);
  --shadow-hover:0 24px 50px rgba(90,63,214,.16),0 4px 12px rgba(20,16,43,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--violet);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--cyan);}
p{font-size:16px;line-height:1.85;color:var(--text);margin:0 0 20px;}
h1,h2,h3,h4{font-family:inherit;color:var(--text);letter-spacing:.02em;margin:0;}
h1{font-size:clamp(30px,4vw,48px);font-weight:700;line-height:1.28;}
h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.32;}
h3{font-size:21px;font-weight:600;line-height:1.45;}
h4{font-size:16px;font-weight:600;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
*:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ===== 进度条 ===== */
.progress-track{position:fixed;top:0;left:var(--sidebar);right:0;height:4px;z-index:60;pointer-events:none;}
.progress-bar{height:100%;width:0;background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);transition:width .1s linear;}

/* ===== 应用外壳 ===== */
.app-shell{min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--card);border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:24px 16px;
  z-index:70;overflow-y:auto;overflow-x:hidden;scrollbar-width:none;
}
.sidebar::-webkit-scrollbar{width:0;height:0;}
.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 0;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#5A3FD6,#8B5CF6 60%,#2FD7C4);
  color:#fff;box-shadow:0 10px 22px rgba(90,63,214,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;overflow:hidden;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--violet-deep);white-space:nowrap;}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;white-space:nowrap;}
.brand:hover .brand-text strong{color:var(--violet);}

.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:30px;flex:1 1 auto;}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 14px;border-radius:12px;
  color:#4C4574;font-size:15px;font-weight:500;transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav a svg{width:20px;height:20px;flex:0 0 20px;color:var(--muted);transition:color .22s var(--ease);}
.side-nav a span{white-space:nowrap;}
.side-nav a:hover{background:#F2EEFF;color:var(--violet);}
.side-nav a:hover svg{color:var(--violet);}
.side-nav a.active{background:#EFEBFF;color:var(--violet-deep);font-weight:600;}
.side-nav a.active svg{color:var(--violet);}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--violet);
}
.sidebar-foot{margin-top:24px;padding-top:20px;border-top:1px solid var(--border);}
.sidebar-note{font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 12px;}

/* ===== 主区 ===== */
.main-area{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column;}
.main-inner{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}
.topbar{display:none;}
.scrim{display:none;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-gold{background:linear-gradient(135deg,#FFC775,#FFB454);color:#221A05;box-shadow:0 12px 26px rgba(255,180,84,.32);}
.btn-gold:hover{color:#221A05;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,180,84,.42);}
.btn-violet{background:var(--violet);color:#fff;box-shadow:0 12px 26px rgba(90,63,214,.26);}
.btn-violet:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px rgba(90,63,214,.34);}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--violet-deep);}
.btn-ghost:hover{color:var(--violet);border-color:var(--violet);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}

/* ===== 胶囊 / 徽章 ===== */
.chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;font-size:13px;font-weight:500;line-height:1;
  background:#F2EEFF;color:var(--violet);border:1px solid #E2DAFF;
}
.chip-cyan{background:rgba(47,215,196,.12);color:#178C80;border-color:rgba(47,215,196,.32);}
.chip-gold{background:rgba(255,180,84,.16);color:#9A5B00;border-color:rgba(255,180,84,.42);}
.chip-dark{background:rgba(255,255,255,.08);color:#D8D3F2;border-color:rgba(255,255,255,.16);}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  padding:26px 0 0;font-size:13.5px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--violet);}
.breadcrumb .sep{color:#C6C0E4;}
.breadcrumb .current{color:var(--violet-deep);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;}

/* ===== 文章头部 ===== */
.article-head{padding:22px 0 0;position:relative;}
.article-head::before{
  content:"";position:absolute;top:0;left:0;width:120px;height:3px;border-radius:3px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
}
.article-head .chip{margin-bottom:16px;}
.article-title{margin-bottom:18px;color:var(--violet-deep);word-break:break-word;}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;
  font-size:14px;color:var(--muted);padding-bottom:24px;border-bottom:1px solid var(--border);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta svg{width:15px;height:15px;color:var(--violet);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C9C2E8;}

/* ===== 提示条 ===== */
.notice{
  display:flex;gap:14px;align-items:flex-start;margin:28px 0 0;
  padding:18px 22px;border-radius:var(--r-md);
  background:linear-gradient(90deg,rgba(47,215,196,.10),rgba(90,63,214,.06));
  border:1px solid rgba(47,215,196,.28);
}
.notice svg{width:20px;height:20px;flex:0 0 20px;color:#178C80;margin-top:4px;}
.notice p{margin:0;font-size:14.5px;line-height:1.8;color:#2C2A46;}
.notice strong{color:var(--violet-deep);}

/* ===== 正文布局 ===== */
.article-layout{
  display:grid;grid-template-columns:minmax(0,820px) 264px;gap:52px;
  align-items:start;padding:44px 0 72px;
}
.article-body{font-size:16.5px;line-height:1.9;color:#241E44;min-width:0;word-break:break-word;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.3vw,28px);font-weight:700;
  margin:44px 0 18px;padding-left:18px;line-height:1.4;color:var(--violet-deep);
}
.article-body h2:first-child{margin-top:0;}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:4px;background:var(--violet);
}
.article-body h3{font-size:19px;font-weight:600;margin:30px 0 12px;color:var(--violet-deep);}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body p{margin:0 0 20px;font-size:16.5px;line-height:1.9;color:#241E44;}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 22px;list-style:revert;}
.article-body li{margin-bottom:10px;line-height:1.9;font-size:16.5px;}
.article-body a{color:var(--violet);border-bottom:1px solid rgba(90,63,214,.32);}
.article-body a:hover{color:var(--cyan);border-bottom-color:rgba(47,215,196,.6);}
.article-body strong{color:var(--violet-deep);font-weight:600;}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-radius:0 14px 14px 0;
  background:#F2EEFF;border-left:3px solid var(--cyan);color:#3A3363;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:26px auto;box-shadow:var(--shadow);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-radius:var(--r-sm);overflow:hidden;}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left;}
.article-body th{background:#F5F2FF;font-weight:600;color:var(--violet-deep);}
.article-body hr{border:0;height:1px;background:var(--border);margin:36px 0;}
.article-body code{
  background:#F2EEFF;color:#5A3FD6;border-radius:6px;padding:2px 6px;font-size:14.5px;
}

/* ===== 侧栏目录 ===== */
.article-toc{
  position:sticky;top:32px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:20px 20px 22px;box-shadow:var(--shadow);
}
.article-toc summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:700;color:var(--violet-deep);gap:10px;
}
.article-toc summary::-webkit-details-marker{display:none;}
.article-toc summary::after{
  content:"+";font-size:18px;line-height:1;color:var(--violet);
  transition:transform .22s var(--ease);
}
.article-toc details[open] summary::after{transform:rotate(45deg);}
.toc-list{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.toc-list li{display:flex;gap:10px;font-size:14px;line-height:1.65;color:#514A78;}
.toc-list li span{
  flex:0 0 22px;font-size:12px;font-weight:700;color:var(--cyan);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.toc-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ===== 空态 ===== */
.empty-state{
  padding:56px 32px;border-radius:var(--r-lg);background:var(--card);
  border:1px dashed #D8D0F5;text-align:center;
}
.empty-state svg{width:44px;height:44px;color:#B9B1E6;margin:0 auto 16px;}
.empty-state h2{font-size:22px;margin-bottom:10px;color:var(--violet-deep);}
.empty-state p{max-width:420px;margin:0 auto 22px;color:var(--muted);font-size:15px;}

/* ===== 通用板块头 ===== */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{color:var(--violet-deep);}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px;max-width:560px;}
.section-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.section-link svg{width:16px;height:16px;}

/* ===== 相关阅读卡 ===== */
.related-grid{margin:0 !important;}
.info-card{
  display:flex;flex-direction:column;height:100%;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D6CCF8;}
.info-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEBFF;}
.info-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.info-card:hover .info-thumb img{transform:scale(1.04);}
.info-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.info-body h3{font-size:17.5px;line-height:1.5;color:var(--violet-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card:hover .info-body h3{color:var(--violet);}
.info-body p{
  font-size:14.5px;line-height:1.75;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#8C86AC;font-variant-numeric:tabular-nums;}

/* ===== 上下篇 ===== */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:40px;}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.post-nav a:hover{transform:translateY(-2px);border-color:var(--violet);box-shadow:var(--shadow);}
.post-nav span{font-size:12.5px;color:var(--muted);letter-spacing:.08em;}
.post-nav strong{font-size:15.5px;color:var(--violet-deep);font-weight:600;}
.post-actions{display:flex;justify-content:center;margin-top:26px;}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;margin:24px 0 64px;border-radius:26px;overflow:hidden;
  background:var(--space);color:#EDEAFB;padding:56px 48px;
  box-shadow:0 26px 60px rgba(20,16,43,.28);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 240px at 12% 8%,rgba(90,63,214,.55),transparent 62%),
             radial-gradient(420px 220px at 88% 92%,rgba(47,215,196,.22),transparent 60%);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(90,63,214,0),#8B5CF6,#2FD7C4,rgba(255,180,84,0));
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-copy{max-width:620px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-copy p{color:#BEB8DE;font-size:15.5px;line-height:1.8;margin:0;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn-ghost-light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.28);color:#EDEAFB;}
.btn-ghost-light:hover{color:#fff;border-color:var(--cyan);background:rgba(47,215,196,.12);transform:translateY(-2px);}

/* ===== 页脚 ===== */
.site-footer{margin-top:auto;background:var(--space);color:#B9B3DA;padding:64px 0 26px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(90,63,214,0),#8B5CF6,#2FD7C4,rgba(255,180,84,0));
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand strong{font-size:17px;color:#fff;font-weight:700;}
.site-footer p{color:#A49DC8;font-size:14px;line-height:1.85;margin:0;max-width:360px;}
.site-footer h4{color:#fff;font-size:14.5px;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#B9B3DA;font-size:14px;transition:color .22s var(--ease),transform .22s var(--ease);}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8C86AC;
}

/* ===== 响应式：窄侧栏 ===== */
@media (max-width:1439px){
  :root{--sidebar:88px;}
  .sidebar{padding:22px 14px;align-items:stretch;}
  .brand{justify-content:center;padding:4px 0 0;}
  .brand-text{display:none;}
  .side-nav a{justify-content:center;padding:0;}
  .side-nav a span{display:none;}
  .sidebar-note{display:none;}
  .sidebar-foot .btn{padding:0 12px;font-size:13px;}
}
@media (min-width:992px) and (max-width:1439px){
  .sidebar-foot .btn span{display:none;}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-toc{position:static;order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .main-inner{padding:0 24px;}
  .section{padding:56px 0;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  :root{--sidebar:0px;}
  .progress-track{left:0;}
  .sidebar{
    width:280px;padding:20px 16px;transform:translateX(-100%);
    transition:transform .28s var(--ease);border-right:0;
    box-shadow:0 24px 60px rgba(20,16,43,.28);
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar .brand{justify-content:flex-start;}
  .sidebar .brand-text{display:flex;}
  .side-nav a{justify-content:flex-start;padding:0 14px;min-height:48px;font-size:16px;}
  .side-nav a span{display:inline;}
  .sidebar-foot .btn span{display:inline;}
  .main-area{margin-left:0;}
  .topbar{
    display:flex;position:sticky;top:0;z-index:65;height:56px;
    align-items:center;justify-content:space-between;gap:12px;
    background:#fff;border-bottom:1px solid var(--border);padding:0 16px;
  }
  .topbar-brand{display:flex;align-items:center;gap:10px;min-width:0;}
  .topbar-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:11px;}
  .topbar-brand .brand-mark svg{width:18px;height:18px;}
  .topbar-brand strong{font-size:15px;color:var(--violet-deep);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .drawer-toggle{
    width:44px;height:44px;display:flex;align-items:center;justify-content:center;
    background:#F5F2FF;border:1px solid var(--border);border-radius:12px;color:var(--violet-deep);cursor:pointer;
  }
  .drawer-toggle svg{width:20px;height:20px;}
  .scrim{
    display:block;position:fixed;inset:0;background:rgba(20,16,43,.5);
    opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:68;
  }
  .scrim.show{opacity:1;visibility:visible;}
  .main-inner{padding:0 18px;}
  .breadcrumb{padding-top:18px;}
  .breadcrumb .current{max-width:60vw;}
  .article-head{padding-top:18px;}
  .article-title{font-size:26px;}
  .article-layout{padding:32px 0 56px;}
  .article-body{font-size:16px;}
  .article-body p,.article-body li{font-size:16px;}
  .section{padding:48px 0;}
  .post-nav{grid-template-columns:1fr;}
  .cta-band{padding:36px 22px;border-radius:20px;margin-bottom:48px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .article-title{font-size:23px;}
  .article-meta{font-size:13px;gap:8px 12px;}
  .notice{padding:16px 16px;flex-direction:column;gap:8px;}
  .notice svg{margin-top:0;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .empty-state{padding:40px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --purple:#5A3FD6;
  --purple-deep:#2A1B63;
  --purple-soft:#EFEBFF;
  --space:#14102B;
  --cyan:#2FD7C4;
  --gold:#FFB454;
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --border:#E6E2F7;
  --text:#1B1636;
  --muted:#6B6590;
  --ok:#2FD7C4;
  --err:#E4495E;
  --radius-lg:22px;
  --radius-md:14px;
  --shadow:0 18px 40px rgba(90,63,214,.10), 0 2px 6px rgba(20,16,43,.06);
  --shadow-hover:0 24px 52px rgba(90,63,214,.16), 0 4px 12px rgba(20,16,43,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:240px;
  --font:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--purple)}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--purple);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.page-wrap{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.main{flex:1 0 auto}
.main-inner{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.no-top{padding-top:0}

.scroll-progress{
  position:fixed;top:0;left:0;height:4px;width:0;z-index:90;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
  transition:width .12s linear;
}

/* ---------- 左侧导航 ---------- */
.side-panel{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  padding:22px 16px 18px;
  z-index:60;
  overflow-y:auto;
  scrollbar-width:none;
}
.side-panel::-webkit-scrollbar{width:0;height:0}
.side-brand{
  display:flex;align-items:center;gap:10px;
  padding:6px 8px 20px;border-bottom:1px solid var(--border);margin-bottom:16px;
}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#5A3FD6,#8B5CF6);
  color:#fff;
}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--purple-deep);white-space:nowrap}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.06em}

.side-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:var(--muted);font-size:15px;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav a svg{width:19px;height:19px;flex:none}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:0;border-radius:3px;
  background:var(--purple);transform:translateY(-50%);
  transition:height .22s var(--ease);
}
.side-nav a:hover{background:#F3F0FF;color:var(--purple)}
.side-nav a.active{background:var(--purple-soft);color:var(--purple-deep);font-weight:600}
.side-nav a.active::before{height:22px}

.side-foot{padding-top:18px;border-top:1px solid var(--border);margin-top:18px}
.side-foot .hint{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-gold{
  background:linear-gradient(135deg,#FFC978,#FFB454 55%,#F0A03F);
  color:#221A05;box-shadow:0 12px 26px rgba(255,180,84,.32);
}
.btn-gold:hover{color:#221A05;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,180,84,.42)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.62);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--border);color:var(--purple-deep)}
.btn-outline:hover{border-color:#D5CBFF;color:var(--purple);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 20px;font-size:14px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;
  height:56px;background:#fff;border-bottom:1px solid var(--border);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.mobile-brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:var(--purple-deep)}
.mobile-brand .brand-mark{width:32px;height:32px;border-radius:10px}
.mobile-brand .brand-mark svg{width:18px;height:18px}
.hamburger{
  width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--purple-deep);
}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(20,16,43,.5);z-index:55;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:56px 0 68px;background:var(--space);
}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(42,27,99,.94) 0%,rgba(20,16,43,.78) 52%,rgba(90,63,214,.6) 100%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
}
.page-hero .main-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:26px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;font-weight:600;max-width:60vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.08em;
  background:rgba(47,215,196,.14);border:1px solid rgba(47,215,196,.4);color:#8EF3E7;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:700;line-height:1.28;letter-spacing:.02em;
  margin-bottom:18px;max-width:20em;
}
.page-hero .lead{font-size:clamp(16px,1.6vw,19px);color:rgba(255,255,255,.86);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}
.badge{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13.5px;
}
.badge strong{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1}
.badge.gold strong{color:var(--gold)}

/* ---------- 区块标题 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--purple);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--cyan)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(24px,2.8vw,36px);margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}

/* ---------- 步骤流 ---------- */
.steps-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}
.anchor-nav{
  position:sticky;top:32px;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:16px;box-shadow:var(--shadow);
}
.anchor-nav h2{font-size:15px;font-weight:700;color:var(--purple-deep);padding:6px 10px 12px}
.anchor-nav a{
  display:block;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);border-left:3px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-nav a:hover{background:#F5F2FF;color:var(--purple)}
.anchor-nav a.active{background:var(--purple-soft);color:var(--purple-deep);font-weight:600;border-left-color:var(--cyan)}
.anchor-nav .anchor-note{margin-top:14px;padding:12px;border-radius:12px;background:#F7F5FF;font-size:13px;color:var(--muted);line-height:1.7}

.steps-flow{position:relative}
.steps-flow::before{
  content:"";position:absolute;left:27px;top:24px;bottom:24px;width:2px;
  background:linear-gradient(180deg,#DCD5FA,#EFEBFF);
}
.step-item{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:24px;margin-bottom:26px}
.step-item:last-child{margin-bottom:0}
.step-num{
  width:56px;height:56px;border-radius:50%;z-index:1;
  background:#fff;border:2px solid var(--gold);color:#A96A12;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 10px 22px rgba(255,180,84,.3);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step-card{
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:26px 28px;box-shadow:var(--shadow);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step-item:hover .step-card{transform:translateX(2px);border-color:#D8CEFF;box-shadow:var(--shadow-hover)}
.step-item:hover .step-num{transform:scale(1.06);box-shadow:0 14px 28px rgba(255,180,84,.42)}
.step-card h3{font-size:21px;font-weight:600;margin-bottom:10px}
.step-card p{color:var(--muted);font-size:15.5px}
.step-note{
  margin-top:16px;padding:12px 16px;border-radius:0 12px 12px 0;
  background:#F7F5FF;border-left:3px solid var(--cyan);
  font-size:14px;color:#4A4470;line-height:1.75;
}
.step-note b{color:var(--purple-deep)}

/* ---------- 登录方式 ---------- */
.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.media-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.media-card:nth-child(2){margin-top:34px}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DCD3FF}
.media-card .media{aspect-ratio:16/9;overflow:hidden;background:#EFEBFF}
.media-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.media-card:hover .media img{transform:scale(1.04)}
.media-card .body{padding:24px 26px 28px}
.media-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.media-card p{color:var(--muted);font-size:15px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:#F3F0FF;color:var(--purple);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.tag.cyan{background:rgba(47,215,196,.14);color:#12796F}

/* ---------- 卡点列表 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.note-card{
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:24px 26px;box-shadow:var(--shadow);position:relative;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.note-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:var(--cyan);opacity:0;transition:opacity .24s var(--ease);
}
.note-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#DCD3FF}
.note-card:hover::before{opacity:1}
.note-card h3{font-size:18px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.note-card h3 span.dot{width:8px;height:8px;border-radius:50%;background:var(--purple);flex:none}
.note-card p{color:var(--muted);font-size:14.5px}

/* ---------- 图文交错 ---------- */
.split-block{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.split-media{border-radius:16px;overflow:hidden;background:#EFEBFF}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-body h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.split-body p{color:var(--muted);font-size:15.5px}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:#3E3866}
.check-list li svg{width:18px;height:18px;flex:none;margin-top:6px;color:var(--cyan)}
.split-body .btn{margin-top:26px}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--cyan);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);z-index:2;
}
.faq-item.open{border-color:#DCD3FF;box-shadow:var(--shadow)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--purple)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--purple-soft);color:var(--purple);font-size:17px;font-weight:700;
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--purple);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--space);color:#fff;padding:56px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
  box-shadow:0 30px 60px rgba(20,16,43,.24);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.18;pointer-events:none;
  background-image:radial-gradient(circle,rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:26px 26px;
}
.cta-band .cta-text{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-band p{color:#B9B3DA;font-size:15.5px;max-width:44em}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
.trust-row{display:flex;flex-wrap:wrap;gap:24px;margin-top:26px;position:relative;z-index:2}
.trust-row li{font-size:13.5px;color:#CFC9E8;display:flex;align-items:center;gap:8px}
.trust-row svg{width:16px;height:16px;color:var(--cyan);flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--space);color:#B9B3DA;padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px}
.site-footer p{font-size:14px;color:#B9B3DA;line-height:1.8}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#B9B3DA;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:20px 0 26px;
  font-size:13px;color:#8E88B2;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s var(--ease),transform .28s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1439px){
  .side-panel{width:88px;padding:20px 12px;overflow:hidden;transition:width .26s var(--ease),box-shadow .26s var(--ease)}
  .side-panel:hover{width:240px;box-shadow:0 0 0 1px var(--border),0 26px 60px rgba(20,16,43,.16)}
  .side-panel:hover .brand-text,.side-panel:hover .side-nav a span,.side-panel:hover .side-foot .hint{opacity:1}
  .brand-text,.side-nav a span,.side-foot .hint{opacity:0;transition:opacity .18s var(--ease);white-space:nowrap}
  .page-wrap{margin-left:88px}
  .side-nav a{padding:0 14px}
  .side-foot .btn{padding:0 14px}
}

@media (max-width:1199px){
  .steps-layout{grid-template-columns:200px minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}

@media (max-width:991px){
  .page-wrap{margin-left:0}
  .mobile-bar{display:flex}
  .side-panel{
    width:280px;transform:translateX(-100%);
    transition:transform .28s var(--ease);
    box-shadow:0 0 60px rgba(20,16,43,.35);
  }
  body.drawer-open .side-panel{transform:translateX(0)}
  body.drawer-open{overflow:hidden}
  .drawer-mask{display:block}
  body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
  .side-nav a{height:48px;font-size:16px}
  .side-nav a span{opacity:1}
  .brand-text{opacity:1}
  .side-foot .hint{opacity:1}
  .main-inner{padding:0 20px}
  .section{padding:72px 0}
  .section.tight{padding:56px 0}
  .page-hero{padding:40px 0 52px}
  .steps-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .anchor-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;scrollbar-width:none}
  .anchor-nav::-webkit-scrollbar{height:0}
  .anchor-nav h2{display:none}
  .anchor-nav a{flex:none;border-left:0;border-bottom:3px solid transparent;border-radius:10px;white-space:nowrap;padding:8px 14px}
  .anchor-nav a.active{border-left:0;border-bottom-color:var(--cyan)}
  .anchor-nav .anchor-note{display:none}
  .split-block{grid-template-columns:minmax(0,1fr);gap:28px;padding:24px}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:40px 28px;gap:28px}
}

@media (max-width:767px){
  .cards-2{grid-template-columns:minmax(0,1fr);gap:20px}
  .media-card:nth-child(2){margin-top:0}
  .grid-2{grid-template-columns:minmax(0,1fr);gap:18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .badge strong{font-size:21px}
  .step-item{grid-template-columns:42px minmax(0,1fr);gap:14px}
  .step-num{width:42px;height:42px;font-size:15px;border-width:2px}
  .steps-flow::before{left:20px}
  .step-card{padding:20px 18px;border-radius:16px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-actions .btn{width:100%}
  .cta-band .cta-actions{flex-direction:column;align-items:stretch}
  .cta-band .cta-actions .btn{width:100%}
  .site-footer{margin-top:64px;padding-top:48px}
}

@media (max-width:520px){
  .main-inner{padding:0 16px}
  .section{padding:56px 0}
  .anchor-nav a{font-size:13px;padding:7px 12px}
  .badge{padding:8px 14px;font-size:12.5px}
  .trust-row{gap:12px;flex-direction:column}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --violet:#5A3FD6;
  --violet-deep:#2A1B63;
  --violet-soft:#8B5CF6;
  --space:#14102B;
  --cyan:#2FD7C4;
  --gold:#FFB454;
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --line:#E6E2F7;
  --muted:#6B6590;
  --ink:#1B1636;
  --err:#E4495E;
  --r-lg:22px;
  --r-xl:28px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(90,63,214,.10), 0 2px 6px rgba(20,16,43,.06);
  --shadow-hover:0 26px 52px rgba(90,63,214,.16), 0 4px 10px rgba(20,16,43,.08);
  --grad-spectrum:linear-gradient(120deg,#5A3FD6 0%,#8B5CF6 34%,#2FD7C4 68%,#FFB454 100%);
  --side-w:240px;
  --main-max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;}
p{margin:0 0 20px;}
ul{margin:0;padding:0;list-style:none;}
strong{font-weight:700;}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:8px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:#fff;color:var(--violet);padding:10px 18px;border-radius:0 0 12px 0;font-size:14px;
}
.skip-link:focus{left:0;}

/* ============ 顶部滚动进度 ============ */
.scroll-progress{
  position:fixed;top:0;left:var(--side-w);right:0;height:4px;z-index:90;
  pointer-events:none;background:transparent;
}
.scroll-progress i{
  display:block;height:100%;width:0;
  background:var(--grad-spectrum);
  transition:width .1s linear;
}

/* ============ 左侧应用栏 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 20px;
  z-index:80;
  transition:transform .28s var(--ease);
}
.sidebar::-webkit-scrollbar{width:0;}

.side-brand{
  display:flex;align-items:center;gap:10px;
  padding:6px 8px 18px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:var(--grad-spectrum);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 10px 22px rgba(90,63,214,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:15px;font-weight:700;color:var(--violet-deep);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);}

.side-nav{
  display:flex;flex-direction:column;gap:4px;
  margin-top:18px;flex:1 1 auto;overflow-y:auto;
}
.side-nav::-webkit-scrollbar{width:0;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.side-nav a svg{width:20px;height:20px;flex:0 0 20px;}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:20px;border-radius:3px;background:var(--violet);
  transform:translateY(-50%) scaleY(0);
  transition:transform .22s var(--ease);
}
.side-nav a:hover{background:#F3F0FF;color:var(--violet);}
.side-nav a.active{background:#EFEBFF;color:var(--violet-deep);font-weight:600;}
.side-nav a.active::before{transform:translateY(-50%) scaleY(1);}

.side-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);}
.side-note{font-size:12.5px;color:var(--muted);margin:10px 0 0;text-align:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;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);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;}
.btn-block{width:100%;}
.btn-gold{
  background:linear-gradient(120deg,#FFB454 0%,#FFCE86 100%);
  color:#221A05;
  box-shadow:0 14px 30px rgba(255,180,84,.32);
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 20px 38px rgba(255,180,84,.38);}
.btn-gold:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.btn-line{background:#fff;border-color:var(--line);color:var(--violet-deep);}
.btn-line:hover{border-color:var(--violet);color:var(--violet);transform:translateY(-2px);box-shadow:var(--shadow);}

/* ============ 主区 ============ */
.main{margin-left:var(--side-w);min-height:100vh;}
.main-inner{max-width:var(--main-max);margin:0 auto;padding:0 48px;}

/* ============ 移动顶栏与抽屉 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:85;
  height:56px;background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{font-size:15px;font-weight:700;color:var(--violet-deep);}
.hamburger{
  width:44px;height:44px;border:0;background:transparent;border-radius:12px;
  display:grid;place-items:center;cursor:pointer;color:var(--violet-deep);
}
.hamburger:hover{background:#F3F0FF;}
.hamburger svg{width:22px;height:22px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,43,.5);z-index:75;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  border:0;padding:0;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.75);
  margin-bottom:22px;overflow:hidden;white-space:nowrap;
}
.crumbs a{color:rgba(255,255,255,.78);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--cyan);}
.crumbs .sep{opacity:.5;}
.crumbs .cur{color:#fff;font-weight:600;overflow:hidden;text-overflow:ellipsis;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:88px 0 76px;
  background:#14102B url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(90,63,214,.86) 0%,rgba(20,16,43,.84) 58%,rgba(47,215,196,.34) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13px;letter-spacing:.06em;color:#E7E3FF;margin-bottom:20px;
}
.hero-eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(47,215,196,.18);
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.28;letter-spacing:.02em;
  max-width:16em;margin-bottom:16px;
}
.hero-sub{
  font-size:clamp(17px,1.6vw,21px);font-weight:600;color:#FFE3B8;
  margin:0 0 14px;
}
.hero-desc{
  max-width:640px;font-size:16px;color:rgba(255,255,255,.86);margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}

.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.stat{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  border-radius:16px;padding:16px 18px;
}
.stat b{
  display:block;font-size:clamp(22px,2.4vw,28px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat span{font-size:13px;color:rgba(255,255,255,.78);}

/* ============ 区块通用 ============ */
.section{padding:88px 0 0;}
.section:last-of-type{padding-bottom:0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--violet);background:#EFEBFF;border-radius:999px;
  padding:5px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,2.8vw,36px);color:var(--violet-deep);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}
.rule-spectrum{height:3px;width:88px;border-radius:3px;background:var(--grad-spectrum);margin:16px 0 20px;}

/* ============ 权益条目 ============ */
.perk-list{display:grid;gap:14px;}
.perk{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:20px 24px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.perk:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#D6CDFA;}
.perk .num{
  width:44px;height:44px;border-radius:14px;
  background:#EFEBFF;color:var(--violet);
  display:grid;place-items:center;font-weight:700;font-variant-numeric:tabular-nums;
}
.perk h3{font-size:18px;color:var(--violet-deep);margin-bottom:4px;}
.perk p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.75;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:#F1EEFF;color:var(--violet);white-space:nowrap;
}
.chip.cyan{background:#E4FBF8;color:#12897C;}
.chip.gold{background:#FFF4E2;color:#9A6212;}

/* ============ 交错图文 ============ */
.zig{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  padding:34px 0;
}
.zig + .zig{border-top:1px dashed var(--line);}
.zig.reverse{grid-template-columns:7fr 5fr;}
.zig.reverse .zig-media{order:2;}
.zig.reverse .zig-text{order:1;}
.zig-media{
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);background:#EFEBFF;
}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease);}
.zig:hover .zig-media img{transform:scale(1.03);}
.zig-text h3{font-size:clamp(20px,2.2vw,24px);color:var(--violet-deep);margin-bottom:12px;}
.zig-text p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 数据条 ============ */
.badge-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 30px;box-shadow:var(--shadow);
}
.badge-strip .b{border-left:1px solid var(--line);padding-left:20px;}
.badge-strip .b:first-child{border-left:0;padding-left:0;}
.badge-strip .b b{
  display:block;font-size:clamp(24px,2.6vw,30px);font-weight:700;color:var(--violet);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.badge-strip .b span{font-size:13.5px;color:var(--muted);}

/* ============ 深色安全能力 ============ */
.dark-panel{
  position:relative;overflow:hidden;
  background:var(--space) url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  color:#fff;border-radius:var(--r-xl);padding:56px;
}
.dark-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-spectrum);
}
.dark-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,16,43,.92),rgba(42,27,99,.86));
}
.dark-panel > *{position:relative;z-index:2;}
.dark-panel h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;}
.dark-panel p{color:rgba(255,255,255,.78);max-width:720px;font-size:15.5px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:14px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
  color:#E4E0FA;transition:background .22s var(--ease),border-color .22s var(--ease);
}
.tag:hover{background:rgba(47,215,196,.14);border-color:rgba(47,215,196,.5);color:#fff;}
.tag::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan);
}
.dark-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  margin-top:34px;padding-top:30px;border-top:1px solid rgba(255,255,255,.14);
}
.dark-metrics b{
  display:block;font-size:clamp(22px,2.4vw,28px);color:var(--gold);
  font-variant-numeric:tabular-nums;line-height:1.25;
}
.dark-metrics span{font-size:13.5px;color:rgba(255,255,255,.72);}

/* ============ 对比卡 ============ */
.compare-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.compare-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.compare-card .cc-body{padding:26px 26px 30px;display:flex;flex-direction:column;flex:1 1 auto;}
.compare-card h3{font-size:20px;color:var(--violet-deep);margin-bottom:6px;}
.compare-card .cc-meta{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.compare-card.recommend{
  border:1px solid transparent;
  background:
    linear-gradient(#fff,#fff) padding-box,
    var(--grad-spectrum) border-box;
}
.badge-recommend{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:700;
  background:#FFF4E2;color:#9A6212;margin-left:10px;
}
.feat{
  display:flex;gap:10px;padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;line-height:1.7;
}
.feat:last-of-type{border-bottom:0;}
.feat svg{width:18px;height:18px;flex:0 0 18px;color:var(--cyan);margin-top:5px;}
.feat.off{color:var(--muted);}
.feat.off svg{color:#C8C2E4;}
.cc-foot{margin-top:auto;padding-top:20px;}

/* ============ 表单 ============ */
.form-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:40px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--violet-deep);}
.field input,.field select,.field textarea{
  width:100%;height:50px;border:1px solid var(--line);border-radius:12px;
  padding:0 14px;background:#FBFAFF;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--violet);background:#fff;
  box-shadow:0 0 0 3px rgba(90,63,214,.16);
}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--violet);}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px;}
.trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.trust span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--muted);
  background:#F5F3FF;border-radius:999px;padding:7px 14px;
}
.trust svg{width:15px;height:15px;color:var(--cyan);}
.form-msg{
  display:none;align-items:center;gap:8px;
  margin-top:18px;font-size:14px;padding:12px 16px;border-radius:12px;
}
.form-msg.ok{display:flex;background:#E4FBF8;color:#12897C;}
.form-msg.err{display:flex;background:#FDEBEE;color:var(--err);}
.form-msg svg{width:16px;height:16px;flex:0 0 16px;}
.privacy{font-size:12.5px;color:var(--muted);margin:14px 0 0;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--space);color:#fff;border-radius:var(--r-xl);
  padding:48px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-spectrum);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.76);margin:0;font-size:15px;max-width:560px;}
.cta-band .cta-action{flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-left:var(--side-w);
  margin-top:96px;
  background:var(--space);color:#B9B3DA;
  padding:72px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;}
.footer-brand strong{font-size:16.5px;letter-spacing:.02em;}
.site-footer h4{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:600;letter-spacing:.04em;}
.site-footer p{font-size:14px;line-height:1.85;margin:0;color:#9C96C2;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9B3DA;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:48px;padding-top:20px;
  font-size:13px;color:#8B85B0;
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.in{
  opacity:1;transform:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}

/* ============ 响应式 ============ */
@media (max-width:1439px) and (min-width:992px){
  :root{--side-w:88px;}
  .sidebar{padding:22px 14px 20px;align-items:center;}
  .side-brand{padding:6px 0 18px;justify-content:center;}
  .brand-text{display:none;}
  .side-nav{width:100%;align-items:center;}
  .side-nav a{justify-content:center;padding:0;}
  .side-nav a span{
    position:absolute;left:calc(100% + 12px);top:50%;
    transform:translateY(-50%) translateX(-6px);
    background:var(--space);color:#fff;
    font-size:13px;font-weight:500;
    padding:7px 14px;border-radius:10px;white-space:nowrap;
    opacity:0;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    z-index:90;
  }
  .side-nav a:hover span{opacity:1;transform:translateY(-50%) translateX(0);}
  .side-foot{width:100%;}
  .side-foot .btn{width:48px;height:48px;padding:0;margin:0 auto;}
  .side-foot .btn span{display:none;}
  .side-note{display:none;}
}

@media (max-width:1199px){
  .main-inner{padding:0 32px;}
  .zig{gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:991px){
  .topbar{display:flex;}
  .scroll-progress{left:0;}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    padding:20px 16px;
    box-shadow:0 24px 60px rgba(20,16,43,.28);
    align-items:stretch;
  }
  .sidebar.open{transform:translateX(0);}
  .brand-text{display:flex;}
  .side-brand{justify-content:flex-start;padding:6px 8px 18px;}
  .side-nav{align-items:stretch;}
  .side-nav a{justify-content:flex-start;padding:0 12px;height:48px;font-size:16px;}
  .side-nav a span{position:static;opacity:1;transform:none;background:transparent;color:inherit;padding:0;font-size:16px;border-radius:0;}
  .side-nav a:hover span{transform:none;}
  .side-foot .btn{width:100%;height:48px;padding:0 24px;}
  .side-foot .btn span{display:inline;}
  .side-note{display:block;}
  .main{margin-left:0;}
  .site-footer{margin-left:0;margin-top:72px;}
  .page-hero{padding:56px 0 56px;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .badge-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .badge-strip .b:nth-child(3){border-left:0;padding-left:0;}
  .dark-panel{padding:40px 32px;}
  .dark-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .zig,.zig.reverse{grid-template-columns:1fr;gap:26px;}
  .zig.reverse .zig-media{order:1;}
  .zig.reverse .zig-text{order:2;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .form-wrap{padding:28px;}
}

@media (max-width:767px){
  .main-inner{padding:0 20px;}
  .section{padding:64px 0 0;}
  .page-hero h1{max-width:none;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (max-width:559px){
  .stat-row{grid-template-columns:1fr;gap:12px;}
  .badge-strip{grid-template-columns:1fr;padding:24px 22px;}
  .badge-strip .b{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px;}
  .badge-strip .b:first-child{border-top:0;padding-top:0;}
  .perk{grid-template-columns:44px minmax(0,1fr);padding:18px;}
  .perk .chip{grid-column:1 / -1;}
  .dark-metrics{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .cta-band .cta-action{width:100%;}
  .cta-band .cta-action .btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --purple:#5A3FD6;
  --purple-deep:#2A1B63;
  --space:#14102B;
  --cyan:#2FD7C4;
  --gold:#FFB454;
  --bg:#F7F5FF;
  --card:#FFFFFF;
  --border:#E6E2F7;
  --muted:#6B6590;
  --text:#1B1636;
  --ok:#2FD7C4;
  --err:#E4495E;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:12px;
  --pill:999px;
  --shadow:0 18px 40px rgba(90,63,214,.10), 0 2px 6px rgba(20,16,43,.06);
  --shadow-hover:0 24px 52px rgba(90,63,214,.18), 0 3px 8px rgba(20,16,43,.08);
  --sidebar:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:32px}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--purple);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0 0 16px;font-weight:700;color:inherit;letter-spacing:.02em}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.28}
h2{font-size:clamp(24px,2.8vw,36px);line-height:1.32}
h3{font-size:21px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--purple);outline-offset:3px}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* 滚动进度条 */
.scroll-progress{position:fixed;top:0;left:0;height:4px;width:0;z-index:200;background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);border-radius:0 4px 4px 0;transition:width .12s linear}

/* 左侧导航 */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;gap:24px;
  padding:28px 16px 24px;z-index:120;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;
}
.app-sidebar::-webkit-scrollbar{display:none}
.side-brand{display:flex;align-items:center;gap:10px;padding:0 8px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6 55%,#2FD7C4);
  box-shadow:0 10px 24px rgba(90,63,214,.28);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.06em}
.side-nav{display:flex;flex-direction:column;gap:6px;flex:1 1 auto}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:12px;
  font-size:15px;font-weight:500;color:#4A4470;
  transition:background .2s var(--ease), color .2s var(--ease);
}
.side-nav a svg{width:20px;height:20px;flex:0 0 20px;color:#8A83B5}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:0 3px 3px 0;background:var(--purple);
  transition:height .22s var(--ease);
}
.side-nav a:hover{background:#F4F1FF;color:var(--purple)}
.side-nav a:hover svg{color:var(--purple)}
.side-nav a.active{background:#EFEBFF;color:var(--purple);font-weight:600}
.side-nav a.active svg{color:var(--purple)}
.side-nav a.active::before{height:22px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;border-radius:var(--pill);padding:0 18px;
  background:var(--gold);color:#221A05;font-size:15px;font-weight:700;
  box-shadow:0 14px 30px rgba(255,180,84,.32);
  transition:transform .22s var(--ease), filter .22s var(--ease);
}
.side-cta:hover{transform:translateY(-2px);filter:brightness(1.06);color:#221A05}
.side-cta:active{transform:translateY(1px)}
.side-note{font-size:12px;color:var(--muted);line-height:1.7;padding:0 8px}

/* 移动端顶部栏 */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:130;
  background:#fff;border-bottom:1px solid var(--border);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.mobile-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:var(--text)}
.mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px}
.mobile-brand .brand-mark svg{width:18px;height:18px}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--purple);
}
.burger svg{width:20px;height:20px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,43,.5);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease), visibility .24s;z-index:140;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:150;
  transform:translateX(-100%);transition:transform .28s var(--ease);
  padding:22px 16px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer .side-nav a{min-height:48px;font-size:16px}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border-radius:12px;border:1px solid var(--border);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--muted);
}
.drawer-close svg{width:18px;height:18px}

/* 主区 */
.app-main{margin-left:var(--sidebar);min-height:100vh}
.main-inner{max-width:1040px;margin:0 auto;padding:0 40px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding:28px 0 0;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--purple)}
.breadcrumb .sep{color:#C3BDDF}
.breadcrumb .current{color:var(--text);font-weight:600;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Hero */
.page-hero{
  position:relative;overflow:hidden;margin-top:20px;
  border-radius:var(--radius-lg);padding:56px 48px 48px;color:#fff;
  background:linear-gradient(120deg,rgba(42,27,99,.93),rgba(20,16,43,.95)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:40px;align-items:center;
  box-shadow:var(--shadow);
}
.page-hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  font-size:13px;letter-spacing:.08em;color:#E9E5FF;margin-bottom:18px;
}
.page-hero h1{color:#fff;margin-bottom:16px}
.hero-sub{font-size:17px;line-height:1.8;color:#D8D3F2;max-width:30em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:9px 18px;border-radius:var(--pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(2px);
}
.stat-badge b{font-size:22px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1}
.stat-badge i{font-style:normal;font-size:13px;color:#CFC9EC}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;border:1px solid rgba(255,255,255,.18);
  box-shadow:0 26px 60px rgba(10,6,30,.45);
}
.hero-visual::after{
  content:"";position:absolute;inset:auto -12px -12px auto;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,215,196,.35),rgba(47,215,196,0) 70%);
  pointer-events:none;
}

/* 通用板块 */
.section{padding:72px 0}
.section-head{max-width:56em;margin-bottom:32px}
.section-head p{color:var(--muted);font-size:16px}
.section-label{
  display:inline-block;font-size:13px;letter-spacing:.1em;color:var(--purple);
  font-weight:700;margin-bottom:12px;
}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:32px;
}

/* 搜索带 */
.search-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:36px 40px;
}
.search-shell{
  display:flex;align-items:center;gap:10px;margin:22px 0 18px;
  background:#FBFAFF;border:1px solid var(--border);border-radius:var(--pill);
  padding:7px 8px 7px 20px;transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.search-shell:focus-within{border-color:var(--purple);box-shadow:0 0 0 3px rgba(90,63,214,.14)}
.search-shell svg{width:19px;height:19px;color:#A29BC9;flex:0 0 19px}
.search-shell input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  height:44px;font-size:15.5px;color:var(--text);
}
.search-shell input::placeholder{color:#A29BC9}
.search-btn{
  flex:0 0 auto;border:0;cursor:pointer;
  padding:0 26px;height:44px;border-radius:var(--pill);
  background:var(--purple);color:#fff;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease), filter .2s var(--ease);
}
.search-btn:hover{transform:translateY(-2px);filter:brightness(1.08)}
.search-meta{font-size:14px;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--pill);
  background:#F4F1FF;border:1px solid var(--border);
  font-size:14px;color:#4A4470;cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.tag:hover{background:#EFEBFF;color:var(--purple);transform:translateY(-2px)}
.tag b{font-weight:700;color:var(--purple);font-variant-numeric:tabular-nums}

/* 排行 */
.rank-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:24px}
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-item{
  display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:16px;
  padding:16px 20px;border-radius:var(--radius-md);
  background:#fff;border:1px solid var(--border);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.rank-item:hover{transform:translateX(4px);border-color:#CFC6F5;box-shadow:var(--shadow)}
.rank-no{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;
  background:#F4F1FF;color:var(--purple);
}
.rank-item:nth-child(1) .rank-no{background:rgba(255,180,84,.18);color:#B3741A}
.rank-item:nth-child(2) .rank-no{background:rgba(47,215,196,.16);color:#12836F}
.rank-item h3{font-size:16px;margin:0 0 4px;font-weight:600}
.rank-item p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.6}
.rank-count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.side-card{
  background:var(--space);color:#CFC9EC;border-radius:var(--radius-lg);
  padding:28px;display:flex;flex-direction:column;gap:16px;height:100%;
}
.side-card h3{color:#fff;font-size:19px;margin:0}
.side-card p{font-size:14px;color:#B9B3DA;margin:0;line-height:1.8}
.side-card .divider{height:1px;background:rgba(255,255,255,.12)}
.side-card .mini-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.side-card .mini-list span{display:flex;gap:10px;align-items:flex-start;color:#CFC9EC}
.side-card .mini-list svg{width:16px;height:16px;flex:0 0 16px;color:var(--cyan);margin-top:6px}

/* FAQ */
.faq-group{margin-bottom:36px}
.faq-group:last-of-type{margin-bottom:0}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.group-head h3{margin:0;font-size:19px}
.group-count{
  font-size:12.5px;padding:4px 12px;border-radius:var(--pill);
  background:#F4F1FF;color:var(--purple);font-weight:700;font-variant-numeric:tabular-nums;
}
.accordion{background:transparent;margin:0}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;
  transition:box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.accordion .accordion-item:hover{border-color:#CFC6F5;box-shadow:var(--shadow)}
.accordion .accordion-item.is-active{border-left:3px solid var(--cyan);box-shadow:var(--shadow)}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 22px;
  font-size:16.5px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.6;
}
.accordion .accordion-title:hover{color:var(--purple);background:#FBFAFF}
.accordion .accordion-item.is-active > .accordion-title{color:var(--purple)}
.accordion .accordion-title::before{
  content:"+";order:2;float:none;width:26px;height:26px;flex:0 0 26px;
  display:grid;place-items:center;margin:0;font-size:20px;font-weight:400;
  color:var(--purple);background:#F4F1FF;border-radius:8px;
  transition:transform .25s var(--ease), background .25s var(--ease);
}
.accordion .accordion-item.is-active > .accordion-title::before{
  content:"+";transform:rotate(45deg);background:rgba(47,215,196,.16);color:#12836F;
}
.accordion .accordion-content{
  padding:0 22px 20px;color:#413B66;font-size:15px;line-height:1.85;background:transparent;border:0;
}
.accordion .accordion-content p{margin-bottom:12px}
.accordion .accordion-content ul{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.accordion .accordion-content li{position:relative;padding-left:20px}
.accordion .accordion-content li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);
}
.faq-empty{
  text-align:center;padding:48px 24px;background:#fff;border:1px dashed var(--border);
  border-radius:var(--radius-lg);color:var(--muted);font-size:15px;
}
.faq-empty strong{display:block;color:var(--text);font-size:17px;margin-bottom:8px}

/* 自助清单 */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:20px 22px;transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.check-item .tick{
  width:26px;height:26px;flex:0 0 26px;border-radius:9px;display:grid;place-items:center;
  background:rgba(47,215,196,.16);color:#12836F;
}
.check-item .tick svg{width:15px;height:15px}
.check-item h3{font-size:16px;margin:0 0 6px}
.check-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.75}

/* 支持渠道 */
.channel-list{display:flex;flex-direction:column;gap:20px}
.channel{
  display:grid;grid-template-columns:minmax(0,3fr) minmax(0,7fr);gap:0;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.channel:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.channel figure{margin:0}
.channel img{width:100%;height:100%;min-height:200px;object-fit:cover}
.channel-body{padding:28px 32px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.channel-body h3{margin:0}
.channel-body p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:12.5px;padding:5px 13px;border-radius:var(--pill);
  background:#F4F1FF;color:#4A4470;border:1px solid var(--border);
}
.avatars{display:flex;align-items:center;gap:12px;margin-top:4px}
.avatar-stack{display:flex}
.avatar-stack span{
  width:32px;height:32px;border-radius:50%;border:2px solid #fff;margin-left:-10px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff;
}
.avatar-stack span:first-child{margin-left:0}
.avatar-stack span:nth-child(1){background:linear-gradient(120deg,#5A3FD6,#8B5CF6)}
.avatar-stack span:nth-child(2){background:linear-gradient(120deg,#2FD7C4,#1FA894)}
.avatar-stack span:nth-child(3){background:linear-gradient(120deg,#FFB454,#E2932F);color:#221A05}
.avatar-stack span:nth-child(4){background:linear-gradient(120deg,#2A1B63,#5A3FD6)}
.avatars em{font-style:normal;font-size:13.5px;color:var(--muted)}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--space);color:#fff;padding:52px 48px;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:32px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(120deg,#5A3FD6,#8B5CF6,#2FD7C4,#FFB454);
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:#B9B3DA;max-width:34em;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:#CFC9EC}
.cta-points span{display:inline-flex;align-items:center;gap:8px}
.cta-points svg{width:15px;height:15px;color:var(--cyan)}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-note{font-size:12.5px;color:#8F89B5;line-height:1.7}

/* 页脚 */
.site-footer{background:var(--space);color:#B9B3DA;margin-top:32px;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px}
.footer-brand strong{color:#fff;font-size:16px}
.site-footer p{font-size:14px;line-height:1.85;color:#B9B3DA;margin:0;max-width:32em}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#B9B3DA;font-size:14px;display:inline-block;transition:color .2s var(--ease), transform .2s var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:#8F89B5;
}

/* 动效 */
body.js-on .reveal{opacity:0;transform:translateY(12px)}
body.js-on .reveal.in{
  opacity:1;transform:none;
  transition:opacity .28s var(--ease), transform .28s var(--ease);
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  body.js-on .reveal{opacity:1;transform:none}
}

/* 断点：1200-1439 收窄为图标栏 */
@media (min-width:1200px) and (max-width:1439px){
  :root{--sidebar:88px}
  .app-sidebar{padding:24px 12px;align-items:center}
  .side-brand{padding:0;justify-content:center}
  .brand-text{display:none}
  .side-nav{width:100%}
  .side-nav a{justify-content:center;padding:0}
  .side-nav a span{
    position:absolute;left:calc(100% + 14px);white-space:nowrap;
    background:var(--space);color:#fff;padding:7px 14px;border-radius:10px;
    font-size:13px;opacity:0;pointer-events:none;transform:translateX(-6px);
    transition:opacity .2s var(--ease), transform .2s var(--ease);z-index:10;
  }
  .side-nav a:hover span{opacity:1;transform:translateX(0)}
  .side-cta{padding:0;width:46px;height:46px}
  .side-cta span{display:none}
  .side-note{display:none}
}

/* 断点：992-1199 主区两列更紧凑 */
@media (min-width:992px) and (max-width:1199px){
  :root{--sidebar:88px}
  .app-sidebar{padding:24px 12px;align-items:center}
  .side-brand{padding:0;justify-content:center}
  .brand-text{display:none}
  .side-nav{width:100%}
  .side-nav a{justify-content:center;padding:0}
  .side-nav a span{
    position:absolute;left:calc(100% + 14px);white-space:nowrap;
    background:var(--space);color:#fff;padding:7px 14px;border-radius:10px;
    font-size:13px;opacity:0;pointer-events:none;transform:translateX(-6px);
    transition:opacity .2s var(--ease), transform .2s var(--ease);z-index:10;
  }
  .side-nav a:hover span{opacity:1;transform:translateX(0)}
  .side-cta{padding:0;width:46px;height:46px}
  .side-cta span{display:none}
  .side-note{display:none}
  .main-inner{padding:0 28px}
  .rank-grid{grid-template-columns:1fr}
  .page-hero{grid-template-columns:1fr;padding:44px 34px 38px}
  .hero-visual img{aspect-ratio:16/9}
}

/* 断点：≤991 顶部栏 + 抽屉 */
@media (max-width:991px){
  .app-sidebar{display:none}
  .mobile-bar{display:flex}
  .app-main{margin-left:0;padding-top:56px}
  .main-inner{padding:0 22px}
  .page-hero{grid-template-columns:1fr;padding:36px 26px 32px;gap:28px}
  .hero-visual img{aspect-ratio:16/10}
  .section{padding:56px 0}
  .rank-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .channel{grid-template-columns:1fr}
  .channel img{min-height:180px;aspect-ratio:16/9}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .search-panel{padding:28px 22px}
}

@media (max-width:767px){
  body{font-size:15.5px}
  h3{font-size:19px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15.5px}
  .search-shell{flex-wrap:wrap;border-radius:20px;padding:14px 16px}
  .search-shell input{flex:1 1 100%;height:40px}
  .search-btn{width:100%;height:44px}
  .footer-grid{grid-template-columns:1fr}
  .accordion .accordion-title{font-size:15.5px;padding:14px 16px}
  .accordion .accordion-content{padding:0 16px 18px}
  .card{padding:24px}
}

@media (max-width:559px){
  .main-inner{padding:0 16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;justify-content:center}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%;justify-content:center}
  .stat-badge{padding:8px 14px}
  .stat-badge b{font-size:19px}
  .rank-item{grid-template-columns:32px 1fr;gap:12px}
  .rank-count{grid-column:2;justify-self:start}
}