/* roulang page: index */
:root{
  --bg:#F6F8FC;--surface:#FFFFFF;--line:#E4E9F3;
  --ink-900:#0E1729;--ink-600:#45536E;--ink-400:#8B96AC;
  --brand:#1F4FD8;--brand-700:#173CA8;--brand-50:#EDF2FF;
  --star:#E0A33C;--star-50:#FDF6E7;--mint:#12A594;--rose:#D9534F;
  --shadow-1:0 6px 24px rgba(16,32,74,.06);
  --shadow-2:0 14px 36px rgba(16,32,74,.10);
  --r-16:16px;--r-20:20px;--r-24:24px;--r-btn:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,transform .2s,box-shadow .2s}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ============ Dock 导航 ============ */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;display:flex;flex-direction:column;align-items:center;padding:0 16px;pointer-events:none}
.dock{
  pointer-events:auto;width:100%;max-width:1080px;height:60px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow-2);
  display:flex;align-items:center;gap:16px;padding:0 10px 0 20px;transition:height .25s ease,box-shadow .25s ease;
}
.dock.shrink{height:52px;box-shadow:0 8px 26px rgba(16,32,74,.12)}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:17px;white-space:nowrap;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand) 0%,#3A6BEA 100%);color:#fff;font-size:12px;
}
.brand span.full{color:var(--ink-900)}
.brand span.short{display:none;color:var(--ink-900)}
.dock-menu{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;justify-content:center}
.dock-menu a{
  display:inline-block;padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--ink-600);white-space:nowrap;
}
.dock-menu a:hover{background:#F4F7FE;color:var(--ink-900)}
.dock-menu a.active{background:var(--brand-50);color:var(--brand);font-weight:600}
.dock-side{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:var(--ink-600);
  border:1px solid transparent;transition:background .2s,color .2s,border-color .2s;
}
.icon-btn:hover{background:#F4F7FE;color:var(--brand);border-color:var(--line)}
.dock-toggle{display:none}
.drawer{
  pointer-events:auto;width:100%;max-width:1080px;margin-top:10px;background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-2);padding:10px;display:none;
}
.drawer.open{display:block;animation:slideDown .22s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.drawer a{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 14px;border-radius:12px;font-size:15px;color:var(--ink-600)}
.drawer a:hover,.drawer a.active{background:var(--brand-50);color:var(--brand);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;padding:0 22px;height:46px;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(31,79,216,.22)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,79,216,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand);background:#F8FAFF;color:var(--brand)}
.btn-line{background:transparent;border:1px solid var(--brand);color:var(--brand)}
.btn-line:hover{background:var(--brand-50)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:999px}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(31,79,216,.45);outline-offset:2px}
.btn-block{width:100%}

/* ============ 通用 ============ */
main{padding-top:104px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-50);border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.sec-title{font-size:28px;margin-bottom:12px}
.sec-desc{color:var(--ink-600);font-size:15.5px}
.badge{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600;line-height:1.6}
.badge-brand{background:var(--brand-50);color:var(--brand)}
.badge-star{background:var(--star-50);color:#9A6B12}
.badge-mint{background:#E6F7F4;color:#0C7A6D}
.badge-grey{background:#F2F5FB;color:var(--ink-600)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-16);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ============ Hero ============ */
.hero{position:relative;padding:36px 0 64px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;opacity:.55;
  background-image:radial-gradient(rgba(31,79,216,.16) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:55fr 45fr;gap:48px}}
.hero h1{font-size:28px;line-height:1.3;margin-bottom:16px}
@media(min-width:768px){.hero h1{font-size:40px}}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--ink-600);font-size:16px;max-width:560px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 26px}
.trust{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-600)}
.trust i{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--brand-50);color:var(--brand);font-size:13px}

.hero-visual{position:relative}
.hero-media{
  position:relative;border-radius:var(--r-24);overflow:hidden;box-shadow:var(--shadow-2);
  aspect-ratio:16/11;background:#0E1729;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(31,79,216,.30)}
.hero-media-tag{
  position:absolute;left:18px;top:18px;z-index:2;background:rgba(255,255,255,.92);color:var(--brand);
  font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;
}
.login-card{
  position:relative;z-index:3;background:#fff;border:1px solid var(--line);border-radius:var(--r-20);
  box-shadow:0 18px 46px rgba(16,32,74,.16);padding:22px;margin-top:-46px;margin-left:24px;margin-right:24px;
}
@media(min-width:1024px){.login-card{margin:0;position:absolute;right:-14px;bottom:-26px;width:302px}}
@media(min-width:1024px) and (max-width:1159px){.login-card{right:0;bottom:-30px;width:286px}}
.login-tabs{display:flex;gap:6px;background:#F4F7FE;border-radius:999px;padding:4px;margin-bottom:18px}
.login-tabs button{flex:1;height:34px;border-radius:999px;font-size:13.5px;color:var(--ink-600);font-weight:600;transition:all .2s}
.login-tabs button.on{background:#fff;color:var(--brand);box-shadow:0 2px 8px rgba(16,32,74,.08)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--ink-600);margin-bottom:6px;font-weight:600}
.field .input{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;
  background:#FBFCFE;transition:border-color .2s,box-shadow .2s,background .2s;color:var(--ink-900);
}
.field .input::placeholder{color:var(--ink-400)}
.field .input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(31,79,216,.12)}
.login-hint{font-size:12.5px;color:var(--ink-400);margin-top:12px;text-align:center}
.login-hint a{color:var(--brand);font-weight:600}

/* ============ 流程条 ============ */
.flow{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:900px){.flow{grid-template-columns:repeat(3,1fr);gap:24px}}
.flow-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-16);padding:24px;box-shadow:var(--shadow-1)}
.flow-no{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em;margin-bottom:10px;display:block}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:14.5px;color:var(--ink-600)}
.flow-line{position:absolute;left:24px;top:0;bottom:0;width:3px;border-radius:3px;background:var(--brand-50)}

/* ============ 权益对比表 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-20);box-shadow:var(--shadow-1);
  overflow-x:auto;overscroll-behavior-x:contain;
}
.table-wrap::-webkit-scrollbar{height:8px}
.table-wrap::-webkit-scrollbar-thumb{background:#D6DEEE;border-radius:8px}
table.benefit{border-collapse:collapse;width:100%;min-width:820px;font-size:14.5px}
table.benefit th,table.benefit td{padding:0 18px;height:52px;text-align:center;border-bottom:1px solid var(--line)}
table.benefit tbody tr:nth-child(even){background:#FAFBFE}
table.benefit thead th{
  position:sticky;top:0;background:#F8FAFF;font-size:14px;color:var(--ink-600);font-weight:600;z-index:2;
  border-bottom:1px solid var(--line);height:60px;
}
table.benefit th:first-child,table.benefit td:first-child{
  position:sticky;left:0;background:#fff;text-align:left;font-weight:500;color:var(--ink-900);
  min-width:190px;box-shadow:1px 0 0 var(--line);z-index:3;
}
table.benefit tbody tr:nth-child(even) td:first-child{background:#FAFBFE}
table.benefit thead th:first-child{background:#F8FAFF;z-index:4}
.col-star{background:var(--star-50)!important;box-shadow:inset 0 0 0 1px var(--star)}
table.benefit thead th.col-star{background:var(--star-50)!important}
.tick{color:var(--mint);font-size:16px}
.dash{color:#C9D0DE;font-size:15px}
.table-note{margin-top:14px;font-size:13.5px;color:var(--ink-400)}

/* ============ 等级亮点 1大2小 ============ */
.level-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.level-grid{grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto}}
.level-main{
  grid-row:span 2;background:#fff;border:1px solid var(--line);border-radius:var(--r-24);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
}
.level-main .cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.level-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.level-main:hover .cover img{transform:scale(1.03)}
.level-main .body{padding:26px 28px 28px}
.level-main h3{font-size:30px;color:var(--ink-900);margin-bottom:10px}
.level-main p{color:var(--ink-600);font-size:15px;margin-bottom:18px}
.level-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-20);box-shadow:var(--shadow-1);padding:24px 26px;display:flex;flex-direction:column;gap:10px}
.level-side h3{font-size:20px}
.level-side p{font-size:14.5px;color:var(--ink-600)}
.mini-list{display:flex;flex-direction:column;gap:8px;margin:8px 0 16px}
.mini-list li{display:flex;align-items:flex-start;gap:9px;font-size:14.5px;color:var(--ink-600)}
.mini-list i{color:var(--mint);font-size:12px;margin-top:6px}

/* ============ 内容预览卡 ============ */
.pick-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.pick-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.pick-grid{grid-template-columns:repeat(3,1fr)}}
.pick{background:#fff;border:1px solid var(--line);border-radius:var(--r-16);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column}
.pick:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.pick .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.pick .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.pick:hover .thumb img{transform:scale(1.03)}
.pick .thumb .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94)}
.pick .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pick h3{font-size:17px}
.pick .desc{font-size:14px;color:var(--ink-600)}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;margin-top:auto}
.link-more i{transition:transform .2s}
.link-more:hover i{transform:translateX(3px)}

/* ============ 最新信息列表 ============ */
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{
  display:flex;gap:20px;padding:22px 16px 22px 4px;border-bottom:1px solid var(--line);position:relative;
  transition:background .2s ease;border-radius:0;
}
.news-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:transparent;transition:background .2s}
.news-item:hover{background:#F8FAFF}
.news-item:hover::before{background:var(--brand)}
.news-item:hover .news-title{color:var(--brand)}
.news-date{
  flex:0 0 68px;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;padding-left:10px;
}
.news-date .d{font-size:26px;font-weight:700;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.news-date .m{font-size:12.5px;color:var(--ink-400);margin-top:5px}
.news-body{flex:1 1 auto;min-width:0}
.news-title{font-size:18px;margin-bottom:7px;transition:color .2s}
.news-sum{font-size:15px;color:var(--ink-600);margin-bottom:10px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-time{font-size:13px;color:var(--ink-400)}
.news-empty{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-20);color:var(--ink-400);
}
.news-empty i{font-size:26px;display:block;margin-bottom:12px;color:#C9D0DE}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-16);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s}
.faq-item.open{box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:18px;font-weight:600;color:var(--ink-900);
}
.faq-q:hover{color:var(--brand)}
.faq-sign{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--brand);font-size:13px;transition:transform .25s ease,background .2s;
}
.faq-item.open .faq-sign{background:var(--brand);border-color:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--ink-600);line-height:1.85}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;border-radius:var(--r-24);border:1px solid #DDE6FA;
  background:linear-gradient(120deg,#EDF2FF 0%,#FFFFFF 72%);padding:38px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:var(--shadow-1);
}
.cta::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(31,79,216,.18) 1px,transparent 1px);background-size:22px 22px;
  -webkit-mask-image:radial-gradient(circle at 88% 30%,#000,transparent 62%);
  mask-image:radial-gradient(circle at 88% 30%,#000,transparent 62%);
}
.cta > *{position:relative;z-index:1}
.cta h2{font-size:24px;margin-bottom:8px}
.cta p{font-size:15px;color:var(--ink-600);max-width:600px}

/* ============ 页脚 ============ */
footer{background:#0B1226;color:#fff;padding:64px 0 26px;margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.foot-brand{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:600;margin-bottom:14px}
.foot-brand .brand-mark{background:linear-gradient(140deg,#2E60E8,#5B87F5)}
.foot-desc{font-size:14px;color:#9AA6C0;max-width:320px}
.foot-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:#9AA6C0}
.foot-links a:hover{color:#fff;text-decoration:underline}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8B96AC;
}

@media(max-width:1023px){
  .dock-menu{display:none}
  .dock-side .btn{display:none}
  .dock-toggle{display:grid}
  .dock{height:58px;padding:0 8px 0 16px;gap:10px}
  .brand span.full{display:none}
  .brand span.short{display:inline}
}
@media(max-width:639px){
  main{padding-top:96px}
  .section{padding:56px 0}
  .sec-title{font-size:22px}
  .hero h1{font-size:26px}
  .cta{padding:28px 22px;text-align:center;justify-content:center}
  .cta .btn{width:100%}
  .news-item{gap:14px;padding:18px 10px 18px 0}
  .news-date{flex:0 0 56px}
  .news-date .d{font-size:22px}
  .login-card{margin:-40px 14px 0}
}

/* roulang page: article */
:root{
    --bg:#F6F8FC;
    --surface:#FFFFFF;
    --line:#E4E9F3;
    --ink-900:#0E1729;
    --ink-600:#45536E;
    --ink-400:#8B96AC;
    --brand:#1F4FD8;
    --brand-700:#173CA8;
    --brand-50:#EDF2FF;
    --star:#E0A33C;
    --star-50:#FDF6E7;
    --mint:#12A594;
    --rose:#D9534F;
    --r-sm:12px;
    --r:16px;
    --r-lg:24px;
    --sh-1:0 6px 24px rgba(16,32,74,.06);
    --sh-2:0 14px 36px rgba(16,32,74,.10);
    --sh-dock:0 10px 34px rgba(16,32,74,.10);
  }
  *,*::before,*::after{box-sizing:border-box}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-900);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
  ul,ol{margin:0}
  h1,h2,h3,h4,p{margin:0}
  .num{font-variant-numeric:tabular-nums}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
  @media(min-width:768px){.container{padding:0 32px}}

  /* ---------- 浮动 Dock 导航 ---------- */
  .dock{
    position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:90;
    width:calc(100% - 32px);max-width:1080px;height:60px;
    display:flex;align-items:center;gap:14px;padding:0 12px 0 18px;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-dock);
    transition:height .25s ease,top .25s ease;
  }
  .dock.shrink{height:52px;top:10px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15.5px;white-space:nowrap}
  .brand-mark{
    width:32px;height:32px;border-radius:10px;flex:0 0 32px;
    background:linear-gradient(135deg,var(--brand),var(--brand-700));
    color:#fff;display:grid;place-items:center;font-size:13px;
    box-shadow:0 4px 12px rgba(31,79,216,.28);
  }
  .brand .short{display:none}
  .dock-menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0 auto;padding:0}
  .dock-menu a{display:block;padding:8px 14px;font-size:14.5px;color:var(--ink-600);border-radius:999px;transition:background .2s,color .2s}
  .dock-menu a:hover{background:var(--brand-50);color:var(--brand)}
  .dock-menu a.active{background:var(--brand-50);color:var(--brand);font-weight:600}
  .dock-side{display:flex;align-items:center;gap:8px}
  .icon-btn{
    width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;
    color:var(--ink-600);display:grid;place-items:center;transition:.2s;
  }
  .icon-btn:hover{color:var(--brand);border-color:#C9D6F8;background:#F8FAFF}
  .icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,79,216,.28)}
  .dock-toggle{display:none}
  .dock-drawer{
    position:fixed;top:88px;left:50%;transform:translateX(-50%) translateY(-8px);
    width:calc(100% - 32px);max-width:480px;z-index:95;
    background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-dock);
    padding:10px;display:none;flex-direction:column;gap:2px;
  }
  .dock-drawer.open{display:flex}
  .dock-drawer a{height:44px;display:flex;align-items:center;padding:0 16px;border-radius:12px;font-size:15px;color:var(--ink-600)}
  .dock-drawer a:hover{background:var(--brand-50);color:var(--brand)}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;
    border-radius:12px;font-weight:600;font-size:15px;border:1px solid transparent;
    transition:transform .18s,background .2s,box-shadow .2s,color .2s,border-color .2s;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(31,79,216,.22)}
  .btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,79,216,.35)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#F8FAFF}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:999px}

  /* ---------- 文章头部 ---------- */
  .art-hero{
    position:relative;padding:106px 0 34px;border-bottom:1px solid var(--line);
    background-image:linear-gradient(180deg,rgba(255,255,255,.90),rgba(246,248,252,.98)),
                     url(/assets/images/backpic/back-2.webp);
    background-size:cover;background-position:center;
  }
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-400)}
  .crumb a:hover{color:var(--brand)}
  .crumb .cur{color:var(--ink-600);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .art-head{margin-top:20px;max-width:820px}
  .art-head h1{font-size:30px;line-height:1.3;font-weight:600;letter-spacing:-.3px;margin-bottom:18px}
  @media(min-width:768px){.art-head h1{font-size:36px}}
  @media(min-width:1024px){.art-head h1{font-size:40px}}
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-400)}
  .meta-row .sep{width:1px;height:12px;background:var(--line)}
  .badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
  .badge-brand{background:var(--brand-50);color:var(--brand)}
  .badge-star{background:var(--star-50);color:#95670F;border:1px solid rgba(224,163,60,.55)}
  .badge-soft{background:#F1F4FB;color:var(--ink-600)}

  /* ---------- 正文布局 ---------- */
  .art-layout{display:grid;grid-template-columns:1fr;gap:32px;padding:40px 0 8px}
  @media(min-width:1024px){.art-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px}}
  .art-main{max-width:760px;min-width:0}
  .article-body{
    font-size:17px;line-height:1.9;color:#25324A;min-height:360px;
  }
  .article-body p{margin:0 0 1.15em}
  .article-body h2{
    position:relative;font-size:24px;line-height:1.4;font-weight:600;color:var(--ink-900);
    margin:2.2em 0 .8em;padding-left:16px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;background:var(--brand);
  }
  .article-body h3{font-size:19px;font-weight:600;color:var(--ink-900);margin:1.7em 0 .6em}
  .article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em}
  .article-body blockquote{
    margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--brand);
    background:#FAFBFE;border-radius:0 12px 12px 0;color:var(--ink-600);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:12px;margin:1.3em 0}
  .article-body a{color:var(--brand);border-bottom:1px solid rgba(31,79,216,.32)}
  .article-body a:hover{border-bottom-color:var(--brand)}
  .article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
  .article-body li{margin:.42em 0}
  .article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;display:block;overflow-x:auto}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
  .article-body th{background:#FAFBFE;font-weight:600;color:var(--ink-900)}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
  .article-body figure{margin:1.4em 0}
  .article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px}

  .empty-state{
    border:1px dashed #D5DDEC;border-radius:20px;background:#fff;
    padding:56px 28px;text-align:center;min-height:360px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  }
  .empty-state i{font-size:30px;color:var(--ink-400)}
  .empty-state h2{font-size:22px;font-weight:600;padding:0;margin:0}
  .empty-state h2::before{display:none}
  .empty-state p{font-size:15px;color:var(--ink-600);max-width:44ch;margin:0}
  .empty-state .btn{margin-top:6px}

  /* ---------- 文末操作 ---------- */
  .art-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
  .tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
  .tag{
    display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-600);transition:.2s;
  }
  .tag:hover{border-color:var(--brand);color:var(--brand);background:#F8FAFF}
  .foot-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* ---------- 侧栏 ---------- */
  .art-side{display:none}
  @media(min-width:1024px){.art-side{display:block}}
  .side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
  .side-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-1);padding:24px}
  .side-title{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:14px;display:flex;align-items:center;gap:8px}
  .side-cover{border-radius:14px;overflow:hidden;margin-bottom:16px}
  .side-cover img{width:100%;height:146px;object-fit:cover}
  .side-card p{font-size:14px;color:var(--ink-600);line-height:1.8}
  .side-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
  .side-list a{display:flex;gap:10px;font-size:14.5px;color:var(--ink-600);transition:.2s}
  .side-list a:hover{color:var(--brand)}
  .side-list i{color:var(--brand);font-size:12px;margin-top:6px}
  .side-cta{background:linear-gradient(140deg,#EDF2FF 0%,#FFFFFF 70%);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--sh-1)}
  .side-cta .btn{width:100%;margin-top:16px}
  .side-note{font-size:12.5px;color:var(--ink-400);margin-top:10px;text-align:center}

  /* ---------- 相关推荐 ---------- */
  .rec-section{padding:64px 0 8px}
  .sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
  .sec-head h2{font-size:24px;font-weight:600;letter-spacing:-.2px}
  .sec-head p{font-size:14.5px;color:var(--ink-600);margin-top:6px}
  .rec-grid{display:grid;grid-template-columns:1fr;gap:22px}
  @media(min-width:640px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.rec-grid{grid-template-columns:repeat(3,1fr)}}
  .rec-card{
    background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
    box-shadow:var(--sh-1);display:flex;flex-direction:column;
    transition:transform .25s,box-shadow .25s;
  }
  .rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
  .rec-cover{position:relative;overflow:hidden}
  .rec-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s}
  .rec-card:hover .rec-cover img{transform:scale(1.03)}
  .rec-cover .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--brand)}
  .rec-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
  .rec-body h3{font-size:17px;font-weight:600;line-height:1.55;margin:0}
  .rec-body p{
    font-size:14px;color:var(--ink-600);margin:0;flex:1;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
  .link-more i{font-size:11px;transition:transform .2s}
  .rec-card:hover .link-more i{transform:translateX(3px)}

  /* ---------- 底部 CTA ---------- */
  .cta-section{padding:56px 0 72px}
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
    background:linear-gradient(105deg,#EDF2FF 0%,#FFFFFF 62%);
    padding:32px 28px;display:flex;flex-direction:column;gap:20px;
    box-shadow:var(--sh-1);
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:radial-gradient(rgba(31,79,216,.18) 1px,transparent 1px);
    background-size:22px 22px;
  }
  .cta-band h2{font-size:23px;font-weight:600;position:relative;z-index:1}
  .cta-band p{font-size:15px;color:var(--ink-600);margin-top:10px;max-width:56ch;position:relative;z-index:1}
  .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
  @media(min-width:900px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px}
    .cta-actions{flex:0 0 auto}
  }

  /* ---------- 页脚 ---------- */
  footer{background:#0B1226;color:#C7D0E3;padding:56px 0 28px;margin-top:24px}
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}}
  .foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px}
  .foot-desc{font-size:14px;color:#8B96AC;line-height:1.85;margin-top:14px;max-width:330px}
  .foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
  .foot-links{display:flex;flex-direction:column;gap:11px}
  .foot-links a{font-size:14px;color:#8B96AC;transition:color .2s}
  .foot-links a:hover{color:#fff;text-decoration:underline}
  .foot-bottom{
    margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8B96AC;
  }

  @media(max-width:900px){
    .dock-menu{display:none}
    .dock-toggle{display:grid}
    .brand .full{display:none}
    .brand .short{display:inline}
    .dock{gap:10px;padding:0 10px 0 14px}
  }
  @media(max-width:520px){
    .dock-side .btn{display:none}
    .art-hero{padding-top:96px}
    .art-head h1{font-size:27px}
    .article-body{font-size:16px}
  }

/* roulang page: category1 */
:root{
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F3;
  --ink-900:#0E1729;
  --ink-600:#45536E;
  --ink-400:#8B96AC;
  --brand:#1F4FD8;
  --brand-700:#173CA8;
  --brand-50:#EDF2FF;
  --star:#E0A33C;
  --star-50:#FDF6E7;
  --mint:#12A594;
  --rose:#D9534F;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 6px 24px rgba(16,32,74,.06);
  --sh-2:0 14px 36px rgba(16,32,74,.10);
  --sh-dock:0 10px 34px rgba(16,32,74,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:104px;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input{font-family:inherit;}
h1,h2,h3,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){
  .container{padding:0 28px;}
}
@media(min-width:1024px){
  .container{padding:0 32px;}
}

/* ============ Dock 导航 ============ */
.dock{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:calc(100% - 32px);
  max-width:1080px;
  height:60px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 14px 0 16px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-dock);
  z-index:60;
  transition:height .25s ease,top .25s ease;
}
.dock.shrink{height:52px;top:10px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  font-size:15px;
  color:var(--ink-900);
  white-space:nowrap;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;
  height:30px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-700) 100%);
  color:#fff;
  font-size:13px;
  box-shadow:0 4px 12px rgba(31,79,216,.30);
}
.brand .short{display:none;}
.dock-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.dock-menu a{
  display:block;
  padding:8px 14px;
  font-size:14px;
  color:var(--ink-600);
  border-radius:999px;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.dock-menu a:hover{background:#F4F6FC;color:var(--brand);}
.dock-menu a.active{background:var(--brand-50);color:var(--brand);font-weight:600;}
.dock-side{
  display:flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:999px;
  color:var(--ink-600);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:#F4F6FC;color:var(--brand);border-color:var(--line);}
.icon-btn:focus-visible{outline:2px solid rgba(31,79,216,.4);outline-offset:2px;}
.dock-toggle{display:none;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid rgba(31,79,216,.4);outline-offset:2px;}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(31,79,216,.24);
}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;box-shadow:none;}
.btn-ghost{
  background:var(--surface);
  color:var(--ink-900);
  border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#F8FAFF;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* 移动抽屉 */
.dock-drawer{
  position:fixed;
  top:86px;
  left:16px;
  right:16px;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--sh-2);
  padding:10px;
  z-index:59;
  display:none;
}
.dock-drawer.open{display:block;}
.dock-drawer a{
  display:block;
  height:44px;
  line-height:44px;
  padding:0 16px;
  border-radius:14px;
  font-size:15px;
  color:var(--ink-600);
}
.dock-drawer a.active{background:var(--brand-50);color:var(--brand);font-weight:600;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%, rgba(31,79,216,.07) 0%, transparent 45%),
    radial-gradient(circle at 88% 76%, rgba(224,163,60,.08) 0%, transparent 42%),
    var(--surface);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(14,23,41,.55) 1px, transparent 1px);
  background-size:26px 26px;
  opacity:.05;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  padding-top:36px;
  font-size:14px;
  color:var(--ink-400);
  flex-wrap:wrap;
}
.crumb a{color:var(--ink-400);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C9D0DE;}
.crumb .now{color:var(--ink-600);}
.hero-grid{
  display:grid;
  gap:36px;
  padding:28px 0 56px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.page-hero h1{
  margin-top:18px;
  font-size:28px;
  line-height:1.25;
  font-weight:600;
  letter-spacing:-.2px;
}
.hero-lead{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  color:var(--ink-600);
  line-height:1.75;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.fact{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  background:#F8FAFF;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  color:var(--ink-600);
}
.fact i{color:var(--brand);font-size:13px;}
.fact b{color:var(--ink-900);font-weight:600;}
.hero-visual{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:#fff;
}
.hero-visual img{width:100%;height:260px;object-fit:cover;}

@media(min-width:768px){
  .page-hero h1{font-size:34px;}
  .hero-visual img{height:320px;}
}
@media(min-width:1024px){
  .hero-grid{
    grid-template-columns:1.15fr .85fr;
    align-items:center;
    gap:48px;
    padding:32px 0 72px;
  }
  .page-hero h1{font-size:40px;}
  .hero-visual img{height:360px;}
}

/* ============ 通用板块 ============ */
.section{padding:52px 0;}
@media(min-width:1024px){
  .section{padding:80px 0;}
}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-label{
  display:inline-block;
  padding:5px 12px;
  border-radius:999px;
  background:var(--star-50);
  color:#8A6218;
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
}
.sec-head h2{
  margin-top:14px;
  font-size:22px;
  font-weight:600;
  line-height:1.25;
}
.sec-head p{
  margin-top:12px;
  font-size:15px;
  color:var(--ink-600);
}
@media(min-width:768px){
  .sec-head h2{font-size:28px;}
}

/* ============ Zigzag ============ */
.zig{
  display:grid;
  gap:28px;
  align-items:center;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.zig + .zig{margin-top:24px;}
.zig:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.zig-media{
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:#F1F4FB;
}
.zig-media img{width:100%;height:224px;object-fit:cover;transition:transform .4s ease;}
.zig:hover .zig-media img{transform:scale(1.03);}
.zig-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.35;
}
.zig-body p{
  margin-top:14px;
  font-size:15px;
  color:var(--ink-600);
}
.zig-points{
  margin-top:20px;
  display:grid;
  gap:10px;
}
.zig-points li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink-600);
  line-height:1.7;
}
.zig-points i{
  color:var(--mint);
  font-size:13px;
  margin-top:5px;
  flex-shrink:0;
}
.zig-index{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  color:var(--ink-400);
  letter-spacing:1px;
  margin-bottom:12px;
}
@media(min-width:1024px){
  .zig{grid-template-columns:1fr 1fr;gap:44px;padding:32px;}
  .zig.reverse .zig-media{order:2;}
  .zig-media img{height:300px;}
}

/* ============ 步骤条 ============ */
.steps-band{
  background:var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.steps-grid{
  display:grid;
  gap:18px;
}
.step-card{
  position:relative;
  padding:26px 24px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D6DEF0;}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;
  height:56px;
  border-radius:50%;
  background:rgba(31,79,216,.12);
  color:var(--brand);
  font-size:20px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.step-card h3{
  font-size:18px;
  font-weight:600;
}
.step-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--ink-600);
  line-height:1.75;
}
.step-line{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--ink-400);
}
.step-line b{color:var(--ink-600);font-weight:600;}
@media(min-width:768px){
  .steps-grid{grid-template-columns:repeat(2,1fr);}
}
@media(min-width:1024px){
  .steps-grid{grid-template-columns:repeat(4,1fr);gap:20px;}
}

/* ============ 准备清单 ============ */
.prep{
  display:grid;
  gap:24px;
}
.prep-aside{
  padding:28px;
  background:linear-gradient(180deg,#F4F7FF 0%,#FFFFFF 100%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
}
.prep-aside h3{
  font-size:18px;
  font-weight:600;
}
.prep-aside p{
  margin-top:12px;
  font-size:14px;
  color:var(--ink-600);
}
.prep-aside .mini{
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  gap:14px;
  align-items:center;
}
.prep-aside .mini i{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:50%;
  background:rgba(18,165,148,.12);
  color:var(--mint);
  flex-shrink:0;
}
.prep-aside .mini span{font-size:13px;color:var(--ink-600);line-height:1.6;}
.prep-list{
  display:grid;
  gap:14px;
}
.prep-item{
  display:flex;
  gap:16px;
  padding:20px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.prep-item:hover{border-color:#D6DEF0;transform:translateY(-2px);box-shadow:var(--sh-2);}
.prep-item .dot{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--brand-50);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  margin-top:2px;
}
.prep-item h3{font-size:16px;font-weight:600;}
.prep-item p{margin-top:6px;font-size:14px;color:var(--ink-600);line-height:1.7;}
@media(min-width:1024px){
  .prep{grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start;}
  .prep-aside{position:sticky;top:104px;}
  .prep-list{grid-template-columns:1fr 1fr;}
}

/* ============ 常见疑问 ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px;}
.faq-card{
  padding:22px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-card:hover{border-color:#D6DEF0;box-shadow:var(--sh-2);}
.faq-card h3{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:18px;
  font-weight:600;
  line-height:1.5;
}
.faq-card h3 .q{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--brand-50);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-top:4px;
}
.faq-card p{
  margin-top:12px;
  padding-left:36px;
  font-size:15px;
  color:var(--ink-600);
  line-height:1.75;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:38px 28px;
  background:linear-gradient(120deg,#EEF3FF 0%,#FFFFFF 62%,#FDF6E7 100%);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  display:grid;
  gap:24px;
  text-align:left;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(31,79,216,.9) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.06;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{
  font-size:22px;
  font-weight:600;
  line-height:1.3;
}
.cta-band p{
  margin-top:12px;
  font-size:15px;
  color:var(--ink-600);
  max-width:640px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
@media(min-width:1024px){
  .cta-band{
    grid-template-columns:1fr auto;
    align-items:center;
    padding:48px 48px;
  }
  .cta-band h2{font-size:28px;}
}

/* ============ 页脚 ============ */
footer{
  margin-top:64px;
  background:#0B1226;
  color:#C7D0E4;
  padding:56px 0 28px;
}
.foot-grid{
  display:grid;
  gap:32px;
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:600;
}
.foot-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:#8B96AC;
  max-width:320px;
}
.foot-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.foot-links{display:grid;gap:10px;}
.foot-links a{
  font-size:14px;
  color:#8B96AC;
  transition:color .2s ease;
  width:fit-content;
}
.foot-links a:hover{color:#fff;text-decoration:underline;}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#8B96AC;
}
@media(min-width:768px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}

/* ============ 响应式导航 ============ */
@media(max-width:1023px){
  .dock-menu{display:none;}
  .dock-toggle{display:inline-flex;}
  .dock-side .btn-sm{display:none;}
}
@media(max-width:520px){
  body{padding-top:92px;}
  .brand .full{display:none;}
  .brand .short{display:inline;}
  .dock{gap:10px;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --bg:#F6F8FC; --surface:#FFFFFF; --line:#E4E9F3;
  --ink-900:#0E1729; --ink-600:#45536E; --ink-400:#8B96AC;
  --brand:#1F4FD8; --brand-700:#173CA8; --brand-50:#EDF2FF;
  --star:#E0A33C; --star-50:#FDF6E7;
  --mint:#12A594; --mint-50:#E6F6F4;
  --rose:#D9534F;
  --r-sm:12px; --r-md:16px; --r-lg:20px; --r-xl:24px;
  --sh-1:0 6px 24px rgba(16,32,74,.06);
  --sh-2:0 14px 36px rgba(16,32,74,.10);
  --sh-dock:0 10px 34px rgba(16,32,74,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;-webkit-text-size-adjust:100%}
html body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
body h1,body h2,body h3{margin:0;font-weight:600;line-height:1.25;letter-spacing:-.01em;color:var(--ink-900)}
body h1{font-size:40px}
body h2{font-size:28px}
body h3{font-size:20px}
body p{margin:0}
body ul,body ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.num{font-variant-numeric:tabular-nums}

body .container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){body .container{padding-left:32px;padding-right:32px}}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:120;
  width:min(1080px,calc(100% - 32px));height:60px;
  display:flex;align-items:center;gap:14px;padding:0 14px;
  background:rgba(255,255,255,.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-dock);
  transition:height .25s ease,box-shadow .25s ease;
}
.dock.shrink{height:52px;box-shadow:0 8px 26px rgba(16,32,74,.12)}
.brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600;white-space:nowrap;color:var(--ink-900)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:9px;background:var(--brand);color:#fff;font-size:13px;flex:0 0 auto;
}
.brand .short{display:none}
.dock-menu{display:flex;align-items:center;gap:4px;margin:0 auto;padding:0}
.dock-menu a{display:inline-block;padding:8px 13px;border-radius:999px;font-size:14px;color:var(--ink-600);transition:background .18s,color .18s}
.dock-menu a:hover{background:var(--brand-50);color:var(--brand)}
.dock-menu a.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.dock-side{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);font-size:14px;
  transition:color .18s,border-color .18s,background .18s;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:#F8FAFF}
.dock-toggle{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:0 10px 24px rgba(31,79,216,.24)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand);background:#F8FAFF;color:var(--brand-700)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:999px}
.btn:focus-visible{outline:2px solid rgba(31,79,216,.42);outline-offset:2px}
.btn:active{transform:translateY(0)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-brand{background:var(--brand-50);color:var(--brand-700)}
.badge-star{background:var(--star-50);color:#8A6410}
.badge-mint{background:var(--mint-50);color:#0E7A6F}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;background:#F1F4FA;color:var(--ink-600);font-size:12px;font-weight:500}

/* ---------- 页头 ---------- */
.page-head{position:relative;padding:126px 0 52px;overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(31,79,216,.13) 1px,transparent 1px);
  background-size:20px 20px;opacity:.5;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.crumb{position:relative;display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-400)}
.crumb a:hover{color:var(--brand)}
.crumb .cur{color:var(--ink-600)}
.head-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;margin-top:22px}
.head-grid h1{margin-top:16px}
.lead{font-size:18px;color:var(--ink-600);margin-top:16px;line-height:1.75;max-width:560px}
.head-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:14px;color:var(--ink-600)}
.trust-row li{display:flex;align-items:center;gap:8px}
.trust-row i{color:var(--brand);font-size:13px}
.head-media{position:relative}
.head-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-2)}
.head-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);
  background:linear-gradient(160deg,rgba(31,79,216,.16),rgba(31,79,216,.02));pointer-events:none;
}

/* ---------- 区块通用 ---------- */
.section{padding:64px 0}
.sec-head{max-width:700px;margin-bottom:36px}
.sec-head h2{margin-top:14px}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink-600)}

/* ---------- 双栏：粘性要点 + 图标卡片 ---------- */
.two-col{display:grid;grid-template-columns:330px 1fr;gap:48px;align-items:start}
.sticky-col{position:sticky;top:104px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.sticky-col h2{font-size:22px}
.dot-list{margin-top:22px;border-left:1px solid var(--line);padding-left:0}
.dot-list li{position:relative;padding:0 0 18px 22px;font-size:15px;color:var(--ink-600)}
.dot-list li:last-child{padding-bottom:0}
.dot-list li::before{
  content:"";position:absolute;left:-4px;top:11px;width:7px;height:7px;border-radius:999px;background:var(--brand);
}
.dot-list li strong{display:block;font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:2px}
.text-link{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:15px;font-weight:600;color:var(--brand)}
.text-link i{transition:transform .18s}
.text-link:hover i{transform:translateX(4px)}

.icon-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.icon-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  box-shadow:var(--sh-1);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.icon-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8E0F2}
.ico{
  width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:var(--mint-50);color:var(--mint);font-size:17px;margin-bottom:16px;
}
.icon-card h3{font-size:18px}
.icon-card p{margin-top:10px;font-size:15px;color:var(--ink-600);line-height:1.75}
.icon-card .tag{margin-top:14px}

/* ---------- 深色区块：设备与会话 ---------- */
.dark-panel{
  position:relative;overflow:hidden;border-radius:var(--r-xl);padding:44px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;color:#fff;
  background:#0B1226;
}
.dark-panel::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.3;
}
.dark-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,18,38,.94) 10%,rgba(23,60,168,.74) 100%);
}
.dark-panel > *{position:relative;z-index:2}
.dark-copy h2{color:#fff;margin-top:16px}
.dark-copy p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.76);max-width:460px}
.dark-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:#EDF2FF;transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.38);color:#fff}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.dark-stats{display:flex;flex-direction:column;gap:14px}
.stat-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-md);padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.stat-card .stat-label{font-size:14px;color:rgba(255,255,255,.74)}
.stat-card .stat-num{font-size:24px;font-weight:600;line-height:1.2}
.stat-card .stat-num small{font-size:13px;font-weight:500;color:rgba(255,255,255,.66);margin-left:4px}
.stat-card .stat-num.gold{color:#F0C466}

/* ---------- 风险场景 ---------- */
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.risk-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);transition:box-shadow .2s,border-color .2s;
}
.risk-item:hover{box-shadow:var(--sh-2);border-color:#D8E0F2}
.risk-ico{
  flex:0 0 auto;width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand);font-size:16px;
}
.risk-item h3{font-size:17px}
.risk-item p{margin-top:8px;font-size:15px;color:var(--ink-600)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:18px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid rgba(31,79,216,.42);outline-offset:-4px}
.faq-item .pm{
  flex:0 0 auto;width:28px;height:28px;border-radius:999px;background:var(--brand-50);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .2s,background .2s,color .2s;
}
.faq-item[open] .pm{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-600);max-width:760px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(110deg,#EDF2FF 0%,#FFFFFF 62%);
  border:1px solid var(--line);padding:38px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-panel::before{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;border-radius:999px;
  background-image:radial-gradient(rgba(31,79,216,.16) 1px,transparent 1px);background-size:16px 16px;opacity:.6;
}
.cta-panel > *{position:relative;z-index:2}
.cta-panel h2{font-size:26px}
.cta-panel p{margin-top:12px;font-size:16px;color:var(--ink-600);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
footer{background:#0B1226;color:#C7CFE0;margin-top:56px;padding:60px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:600}
.foot-brand .brand-mark{background:var(--brand)}
.foot-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#8B96AC;max-width:300px}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:#A9B4C9;transition:color .18s}
.foot-links a:hover{color:#fff;text-decoration:underline}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8B96AC;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock{gap:8px}
  .dock-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;display:none;
    flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:10px;
    background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-2);
  }
  .dock-menu.open{display:flex}
  .dock-menu a{padding:12px 14px;font-size:15px;border-radius:14px}
  .dock-menu a.active{background:var(--brand-50)}
  .dock-side{margin-left:auto}
  .dock-toggle{display:inline-flex}
  .dock .icon-btn[aria-label="搜索帮助内容"]{display:none}
  .head-grid{grid-template-columns:1fr;gap:32px}
  .two-col{grid-template-columns:1fr;gap:32px}
  .sticky-col{position:static}
  .dark-panel{grid-template-columns:1fr;padding:32px}
  .risk-grid{grid-template-columns:1fr}
  .icon-grid{grid-template-columns:1fr}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:30px 24px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body h1{font-size:28px}
  body h2{font-size:22px}
  body h3{font-size:18px}
  .page-head{padding:112px 0 40px}
  .section{padding:48px 0}
  .lead{font-size:16px}
  .sticky-col{padding:22px}
  .dark-copy h2{font-size:22px}
  .cta-panel h2{font-size:22px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:520px){
  .brand .full{display:none}
  .brand .short{display:inline}
  .foot-grid{grid-template-columns:1fr}
  .head-actions .btn,.cta-actions .btn,.dark-actions .btn{width:100%}
  .stat-card{flex-direction:column;align-items:flex-start;gap:6px}
}

/* roulang page: category4 */
:root{
    --bg:#F6F8FC;
    --surface:#FFFFFF;
    --line:#E4E9F3;
    --ink-900:#0E1729;
    --ink-600:#45536E;
    --ink-400:#8B96AC;
    --brand:#1F4FD8;
    --brand-700:#173CA8;
    --brand-50:#EDF2FF;
    --star:#E0A33C;
    --star-50:#FDF6E7;
    --mint:#12A594;
    --rose:#D9534F;
    --r-sm:12px;
    --r-md:16px;
    --r-lg:24px;
    --sh-1:0 6px 24px rgba(16,32,74,.06);
    --sh-2:0 14px 36px rgba(16,32,74,.10);
    --sh-dock:0 10px 34px rgba(16,32,74,.10);
    --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;
    background:var(--bg);
    color:var(--ink-900);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  button,input{font:inherit;color:inherit}
  ul{margin:0;padding:0;list-style:none}
  h1,h2,h3,p{margin:0}
  .num{font-variant-numeric:tabular-nums}

  .container{max-width:1180px;margin:0 auto;padding:0 32px;width:100%}
  .section{padding:64px 0}

  /* ---------- Dock 导航 ---------- */
  .dock{
    position:fixed;top:16px;left:50%;transform:translateX(-50%);
    width:calc(100% - 40px);max-width:1080px;height:60px;
    display:flex;align-items:center;gap:16px;
    padding:0 12px 0 16px;
    background:rgba(255,255,255,.86);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-dock);
    z-index:80;transition:height .25s var(--ease),box-shadow .25s var(--ease);
  }
  .dock.shrink{height:52px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;letter-spacing:.2px;white-space:nowrap}
  .brand-mark{
    width:28px;height:28px;border-radius:999px;display:flex;align-items:center;justify-content:center;
    background:var(--brand-50);color:var(--star);font-size:12px;flex:0 0 auto;
  }
  .brand .short{display:none}
  .dock-menu{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
  .dock-menu a{
    display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
    font-size:15px;color:var(--ink-600);transition:background .2s var(--ease),color .2s var(--ease);
  }
  .dock-menu a:hover{background:#F8FAFF;color:var(--brand)}
  .dock-menu a.active{background:var(--brand-50);color:var(--brand);font-weight:600}
  .dock-side{margin-left:auto;display:flex;align-items:center;gap:8px}
  .icon-btn{
    width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;
    display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);
    cursor:pointer;transition:.2s var(--ease);
  }
  .icon-btn:hover{color:var(--brand);border-color:#C9D6F6;background:#F8FAFF}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
    transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(31,79,216,.18)}
  .btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
  .btn-ghost:hover{border-color:#C9D6F6;background:#F8FAFF;color:var(--brand)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}
  .btn:focus-visible,.icon-btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid rgba(31,79,216,.45);outline-offset:2px;
  }
  .dock-toggle{display:none}

  .dock-drawer{
    position:fixed;top:84px;left:50%;width:calc(100% - 40px);max-width:1080px;
    transform:translateX(-50%) translateY(-12px);
    background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-dock);
    padding:10px;z-index:79;opacity:0;visibility:hidden;
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  .dock-drawer.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
  .dock-drawer a{display:flex;align-items:center;height:44px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-600)}
  .dock-drawer a.active{background:var(--brand-50);color:var(--brand);font-weight:600}

  /* ---------- 页头 ---------- */
  .page-head{position:relative;padding:130px 0 40px;overflow:hidden}
  .page-head::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(31,79,216,.10) 1.4px,transparent 1.4px);
    background-size:22px 22px;opacity:.5;
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
    pointer-events:none;
  }
  .page-head .container{position:relative;z-index:1}
  .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);margin-bottom:18px;flex-wrap:wrap}
  .crumb a:hover{color:var(--brand)}
  .crumb .sep{color:#C9D0DE}
  .crumb .now{color:var(--ink-600);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  h1.page-title{font-size:40px;line-height:1.25;font-weight:600;letter-spacing:-.4px}
  .page-lead{margin-top:16px;font-size:18px;line-height:1.7;color:var(--ink-600);max-width:760px}
  .head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

  .search-bar{
    margin-top:28px;display:flex;align-items:center;gap:10px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:8px 8px 8px 20px;max-width:620px;box-shadow:var(--sh-1);
  }
  .search-bar i{color:var(--ink-400)}
  .search-input{
    flex:1;border:0;outline:none;background:transparent;height:40px;font-size:15px;color:var(--ink-900);
  }
  .search-input::placeholder{color:var(--ink-400)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.2px;
  }
  .badge-brand{background:var(--brand-50);color:var(--brand)}
  .badge-star{background:var(--star-50);color:#9A6B16}
  .badge-mint{background:rgba(18,165,148,.10);color:#0C7A6E}
  .badge-rose{background:rgba(217,83,79,.10);color:var(--rose)}
  .badge-plain{background:#F1F4FA;color:var(--ink-600)}

  /* ---------- 快速入口 ---------- */
  .entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .entry-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5DEF2}
  .entry-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .entry-icon{
    width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:var(--brand-50);color:var(--brand);font-size:17px;
  }
  .entry-title{font-size:18px;font-weight:600;line-height:1.5}
  .entry-text{font-size:14px;line-height:1.7;color:var(--ink-600)}
  .entry-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:auto}
  .entry-link i{transition:transform .2s var(--ease)}
  .entry-card:hover .entry-link i{transform:translateX(3px)}

  /* ---------- 目录 + FAQ ---------- */
  .help-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;align-items:start}
  .toc{
    position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:16px 14px;box-shadow:var(--sh-1);
  }
  .toc-title{font-size:13px;font-weight:600;color:var(--ink-400);letter-spacing:.6px;padding:0 10px 10px}
  .toc-link{
    display:block;padding:10px 12px;border-radius:10px;font-size:15px;color:var(--ink-600);
    border-left:3px solid transparent;transition:.2s var(--ease);
  }
  .toc-link:hover{background:#F8FAFF;color:var(--brand)}
  .toc-link.is-active{background:var(--brand-50);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
  .toc-note{margin-top:14px;padding:12px;border-radius:12px;background:var(--star-50);font-size:13px;line-height:1.7;color:#8A6116}

  .faq-group{margin-bottom:34px;scroll-margin-top:100px}
  .group-title{font-size:28px;line-height:1.3;font-weight:600;letter-spacing:-.3px;margin-bottom:6px}
  .group-sub{font-size:14px;color:var(--ink-400);margin-bottom:18px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
    margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item:hover{border-color:#D5DEF2}
  .faq-item[open]{box-shadow:var(--sh-2);border-color:#D5DEF2}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-q{font-size:18px;font-weight:600;line-height:1.55;flex:1}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
    color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;
  }
  .faq-icon::before{content:"+"}
  .faq-item[open] .faq-icon::before{content:"−"}
  .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);max-width:760px}
  .faq-body p+p{margin-top:10px}

  /* ---------- 速查表 ---------- */
  .table-wrap{
    overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    box-shadow:var(--sh-1);-webkit-overflow-scrolling:touch;
  }
  table.quick-table{width:100%;border-collapse:collapse;min-width:820px}
  .quick-table th{
    text-align:left;font-size:13px;font-weight:600;color:var(--ink-600);letter-spacing:.4px;
    background:#FAFBFE;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
  }
  .quick-table td{
    padding:16px 18px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-600);vertical-align:top;line-height:1.7;
  }
  .quick-table tbody tr:nth-child(even) td{background:#FAFBFE}
  .quick-table tbody tr:last-child td{border-bottom:0}
  .quick-table td:first-child{color:var(--ink-900);font-weight:600}
  .table-tip{margin-top:12px;font-size:13px;color:var(--ink-400)}

  /* ---------- 图文 + 步骤 ---------- */
  .split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
  .media-img{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);position:relative;background:#E9EEF9}
  .media-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
  .media-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,79,216,.06),rgba(14,23,41,.14))}
  .step-list{display:flex;flex-direction:column;gap:18px;margin-top:26px}
  .step-item{display:flex;gap:16px;align-items:flex-start}
  .step-num{
    flex:0 0 auto;width:38px;height:38px;border-radius:999px;display:flex;align-items:center;justify-content:center;
    background:rgba(31,79,216,.10);color:var(--brand);font-weight:600;font-size:14px;
  }
  .step-title{font-size:16px;font-weight:600;line-height:1.6}
  .step-text{font-size:14px;color:var(--ink-600);line-height:1.75}

  /* ---------- CTA ---------- */
  .cta-block{
    position:relative;overflow:hidden;background:linear-gradient(120deg,#EDF2FF 0%,#FFFFFF 68%);
    border:1px solid var(--line);border-radius:var(--r-lg);padding:40px 44px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--sh-1);
  }
  .cta-block::after{
    content:"";position:absolute;right:-40px;bottom:-60px;width:320px;height:320px;
    background-image:radial-gradient(rgba(224,163,60,.28) 1.6px,transparent 1.6px);
    background-size:20px 20px;opacity:.6;pointer-events:none;
  }
  .cta-block .cta-copy{position:relative;z-index:1;max-width:620px}
  .cta-title{font-size:26px;line-height:1.35;font-weight:600}
  .cta-text{margin-top:12px;font-size:15px;color:var(--ink-600);line-height:1.8}
  .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

  .support-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px}
  .support-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1)}
  .support-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
  .support-card p{font-size:14px;color:var(--ink-600);line-height:1.75}

  /* ---------- 页脚 ---------- */
  footer{background:#0B1226;color:#fff;padding:56px 0 26px;margin-top:64px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  .foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;margin-bottom:14px}
  .foot-brand .brand-mark{background:rgba(255,255,255,.08)}
  .foot-desc{font-size:14px;line-height:1.8;color:#8B96AC;max-width:330px}
  .foot-title{font-size:14px;font-weight:600;margin-bottom:14px}
  .foot-links a{display:block;font-size:14px;color:#8B96AC;margin-bottom:10px;transition:color .2s var(--ease)}
  .foot-links a:hover{color:#fff;text-decoration:underline}
  .foot-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;color:#8B96AC;
  }

  @media (max-width:1023px){
    .dock-menu{display:none}
    .dock-toggle{display:inline-flex}
    .help-layout{grid-template-columns:minmax(0,1fr)}
    .toc{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px}
    .toc-title{display:none}
    .toc-link{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;padding:8px 12px}
    .toc-link.is-active{border-left:0;border-bottom-color:var(--brand)}
    .toc-note{display:none}
    .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .split{grid-template-columns:minmax(0,1fr);gap:28px}
    .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  }
  @media (max-width:767px){
    .container{padding:0 20px}
    .page-head{padding:112px 0 28px}
    h1.page-title{font-size:28px}
    .page-lead{font-size:16px}
    .section{padding:44px 0}
    .entry-grid{grid-template-columns:minmax(0,1fr)}
    .support-grid{grid-template-columns:minmax(0,1fr)}
    .group-title{font-size:22px}
    .faq-q{font-size:16px}
    .faq-item summary{padding:16px 18px}
    .faq-body{padding:0 18px 18px}
    .cta-block{flex-direction:column;align-items:flex-start;padding:28px 22px;text-align:left}
    .cta-title{font-size:22px}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .search-bar{padding:6px 6px 6px 16px}
    .foot-grid{grid-template-columns:1fr}
    .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .brand .full{display:none}
    .brand .short{display:inline}
  }
  @media (max-width:520px){
    .dock{height:56px;padding:0 10px 0 12px}
    .dock-side .btn-sm{display:none}
  }

/* roulang page: category3 */
:root{
  --bg:#F6F8FC; --surface:#FFFFFF; --line:#E4E9F3;
  --ink-900:#0E1729; --ink-600:#45536E; --ink-400:#8B96AC;
  --brand:#1F4FD8; --brand-700:#173CA8; --brand-50:#EDF2FF;
  --star:#E0A33C; --star-50:#FDF6E7; --mint:#12A594; --rose:#D9534F;
  --r-sm:12px; --r-md:16px; --r-lg:24px; --r-pill:999px;
  --sh-1:0 6px 24px rgba(16,32,74,.06);
  --sh-2:0 14px 36px rgba(16,32,74,.10);
  --dock-sh:0 10px 34px rgba(16,32,74,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.section{padding:52px 0}
@media(min-width:768px){.section{padding:80px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-50);border-radius:var(--r-pill);
  padding:6px 14px;letter-spacing:.02em;
}
.section-title{font-size:22px;margin-bottom:8px}
@media(min-width:768px){.section-title{font-size:28px}}
.section-sub{color:var(--ink-600);font-size:15px;max-width:660px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;left:50%;transform:translateX(-50%);top:16px;z-index:80;
  width:calc(100% - 32px);max-width:1080px;height:60px;
  display:flex;align-items:center;gap:12px;padding:0 10px 0 14px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--dock-sh);
  transition:height .25s ease,top .25s ease;
}
.dock.compact{height:52px;top:10px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;color:var(--ink-900);white-space:nowrap}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;flex:0 0 30px;
  border-radius:10px;background:var(--brand);color:#fff;font-size:13px;
  box-shadow:0 4px 12px rgba(31,79,216,.28);
}
.brand .short{display:none}
.dock-menu{display:flex;align-items:center;gap:2px;margin-left:6px}
.dock-menu a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--ink-600);transition:background .2s ease,color .2s ease;
}
.dock-menu a:hover{background:#F8FAFF;color:var(--brand)}
.dock-menu a.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.dock-side{margin-left:auto;display:flex;align-items:center;gap:8px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink-600);
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#F8FAFF}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,79,216,.30)}
.dock-toggle{display:none}
@media(max-width:1023px){
  .brand .full{display:none}
  .brand .short{display:inline}
  .dock-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:10px;
    background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-2);
    display:none;
  }
  .dock.open .dock-menu{display:flex}
  .dock-menu a{height:44px;border-radius:14px;font-size:15px}
  .dock-toggle{display:inline-flex}
  .dock-side .btn{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(31,79,216,.22)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#F8FAFF}
.btn-gold{background:#fff;border-color:var(--star);color:#8A6218}
.btn-gold:hover{background:var(--star-50);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 26px;font-size:16px;border-radius:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,79,216,.35)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:var(--brand-50);color:var(--brand-700)}
.badge-gold{background:var(--star-50);color:#8A6218;border:1px solid rgba(224,163,60,.45)}
.badge-mint{background:#E7F7F4;color:#0B7F72}
.badge-plain{background:#F1F4FA;color:var(--ink-600)}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;padding:112px 0 40px;
  background:
    radial-gradient(rgba(31,79,216,.35) 1px,transparent 1.4px) 0 0/26px 26px,
    linear-gradient(180deg,#EEF3FF 0%,var(--bg) 78%);
  background-size:26px 26px,100% 100%;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.55),rgba(255,255,255,.9));
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);margin-bottom:18px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C9D0DE}
.crumb .now{color:var(--ink-600);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head h1{font-size:28px;margin:14px 0 12px}
@media(min-width:768px){.page-head h1{font-size:40px}}
.page-lead{font-size:16px;color:var(--ink-600);max-width:720px}
.head-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.stat-chip{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:8px 16px;box-shadow:var(--sh-1);font-size:14px;color:var(--ink-600);
}
.stat-chip b{font-size:16px;color:var(--ink-900)}

/* ---------- 等级卡条 ---------- */
.tier-strip{
  display:flex;gap:16px;overflow-x:auto;padding:6px 4px 20px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.tier-strip::-webkit-scrollbar{height:8px}
.tier-strip::-webkit-scrollbar-thumb{background:#D6DEEE;border-radius:99px}
.tier-strip::-webkit-scrollbar-track{background:transparent}
.tier-card{
  scroll-snap-align:start;flex:0 0 258px;background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.tier-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.tier-card.gold{border:1px solid var(--star);background:linear-gradient(180deg,var(--star-50) 0%,#fff 42%)}
.tier-name{display:flex;align-items:center;gap:8px;font-size:18px}
.tier-price{margin:14px 0 4px;font-size:28px;font-weight:600;letter-spacing:-.02em}
.tier-price span{font-size:14px;font-weight:400;color:var(--ink-400);margin-left:4px}
.tier-list{margin:16px 0 20px;display:grid;gap:9px}
.tier-list li{display:flex;gap:9px;font-size:14.5px;color:var(--ink-600);line-height:1.6}
.tier-list i{color:var(--mint);font-size:13px;margin-top:7px}
.tier-card .btn{width:100%}

/* ---------- 权益表 ---------- */
.table-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-1);overflow:hidden}
.table-scroll{overflow-x:auto}
.table-scroll::-webkit-scrollbar{height:8px}
.table-scroll::-webkit-scrollbar-thumb{background:#D6DEEE;border-radius:99px}
.benefit-table{width:100%;min-width:780px;border-collapse:separate;border-spacing:0}
.benefit-table thead th{
  background:#FAFBFE;height:56px;padding:0 16px;font-size:13.5px;font-weight:600;
  color:var(--ink-600);text-align:center;border-bottom:1px solid var(--line);white-space:nowrap;
}
.benefit-table thead th:first-child{text-align:left;color:var(--ink-900)}
.benefit-table tbody th,.benefit-table tbody td{
  height:52px;padding:0 16px;font-size:15px;border-bottom:1px solid var(--line);text-align:center;
}
.benefit-table tbody tr:nth-child(even) td,.benefit-table tbody tr:nth-child(even) th{background:#FAFBFE}
.benefit-table tbody th{
  text-align:left;font-weight:500;color:var(--ink-900);position:sticky;left:0;z-index:1;
  background:#fff;border-right:1px solid var(--line);
}
.benefit-table tbody tr:nth-child(even) th{background:#FAFBFE}
.benefit-table tbody tr:last-child th,.benefit-table tbody tr:last-child td{border-bottom:none}
.benefit-table .yes{color:var(--mint);font-size:15px}
.benefit-table .no{color:#C9D0DE;font-weight:600}
.benefit-table .col-gold{background:rgba(253,246,231,.7)}
.table-note{display:flex;align-items:center;gap:10px;padding:14px 22px;background:#FAFBFE;font-size:13.5px;color:var(--ink-400);border-top:1px solid var(--line)}

/* ---------- 周期与说明 ---------- */
.cycle-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:768px){.cycle-grid{grid-template-columns:repeat(3,1fr)}}
.cycle-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s,border-color .25s;
}
.cycle-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.cycle-card.best{border-color:var(--brand);background:linear-gradient(180deg,#F4F7FF 0%,#fff 50%)}
.cycle-days{font-size:30px;font-weight:600;letter-spacing:-.02em}
.cycle-days small{font-size:14px;font-weight:400;color:var(--ink-400);margin-left:4px}
.cycle-save{margin-top:10px;font-size:14px;color:var(--mint);font-weight:600}
.cycle-desc{margin-top:12px;font-size:14.5px;color:var(--ink-600)}
.notes{display:grid;gap:14px;margin-top:26px}
@media(min-width:768px){.notes{grid-template-columns:repeat(2,1fr)}}
.note-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1)}
.note-ic{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand);font-size:15px;
}
.note-item h3{font-size:16px;margin-bottom:4px}
.note-item p{font-size:14.5px;color:var(--ink-600)}

/* ---------- 图文说明 ---------- */
.split{display:grid;gap:28px;align-items:center;grid-template-columns:1fr}
@media(min-width:1024px){.split{grid-template-columns:1.05fr .95fr;gap:48px}}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.split-media::after{content:"";position:absolute;inset:0;background:rgba(31,79,216,.07)}
.media-tag{position:absolute;top:16px;left:16px;z-index:2}
.check-list{display:grid;gap:12px;margin-top:18px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-600)}
.check-list i{color:var(--brand);font-size:14px;margin-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.faq-item h3{margin:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q:hover{background:#F8FAFF}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 2px rgba(31,79,216,.35)}
.faq-sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:var(--r-pill);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);font-size:12px;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-sign{transform:rotate(45deg);background:var(--brand-50)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.faq-item.open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,#EDF2FF 0%,#FFFFFF 58%);
  box-shadow:var(--sh-1);padding:32px 24px;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(rgba(31,79,216,.45) 1px,transparent 1.3px) 0 0/22px 22px;
  opacity:.07;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
@media(min-width:768px){
  .cta-band{padding:44px 48px;flex-direction:row;align-items:center;justify-content:space-between}
}
.cta-band h2{font-size:22px}
@media(min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{margin-top:8px;color:var(--ink-600);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
footer{background:#0B1226;color:#C6CFE4;margin-top:60px;padding:56px 0 24px}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.foot-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:600;margin-bottom:14px}
.foot-desc{font-size:14px;color:#8B96AC;line-height:1.75;max-width:330px}
.foot-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.foot-links{display:grid;gap:10px}
.foot-links a{font-size:14px;color:#A7B2CB;transition:color .2s ease}
.foot-links a:hover{color:#fff;text-decoration:underline}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8B96AC;
}
@media(max-width:1023px){body{padding-top:0}}