/* roulang page: index */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FCC;
  --acid:#C9F24E;
  --coral:#FF7A59;
  --ink:#14121F;
  --ink-2:#2A2350;
  --mist:#F6F5FB;
  --card:#FFFFFF;
  --line:#E5E2F0;
  --line-soft:#EFEDF7;
  --t1:#171528;
  --t2:#55516B;
  --t3:#8B87A0;
  --ok:#2BB673;
  --warn:#E8A33D;
  --err:#E5484D;
  --r-lg:22px;
  --r-md:18px;
  --shadow-1:0 1px 2px rgba(20,18,31,.05);
  --shadow-2:0 20px 44px -18px rgba(108,76,241,.38);
  --shadow-3:0 12px 30px -14px rgba(20,18,31,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--t2);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{color:var(--t1);margin:0;line-height:1.22;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--acid);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.wrap{padding:0 24px}}
.lead{max-width:68ch}

/* ---------- 导航 ---------- */
.nav-shell{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 10px 8px 16px;
  box-shadow:var(--shadow-1);
  transition:padding .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.nav-shell.is-scrolled{padding:5px 10px 5px 16px;box-shadow:0 12px 30px -16px rgba(20,18,31,.28);border-color:#DEDAF0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:grid;place-items:center;position:relative;overflow:hidden;
}
.brand-mark::after{content:"";position:absolute;right:-6px;bottom:-8px;width:20px;height:20px;border-radius:50%;background:rgba(201,242,78,.85)}
.brand-mark span{position:relative;z-index:1;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.02em}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;font-size:15.5px;font-weight:600;color:var(--t2);
  border-radius:999px;transition:color .2s ease,transform .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;border-radius:2px;
  background:var(--acid);transform:translateX(-50%);transition:width .24s ease;
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px)}
.nav-link:hover::after{width:18px}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{width:22px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(108,76,241,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(74,47,204,.85)}
.btn-primary:active{transform:translateY(0);background:#40279F}
.btn-lime{background:var(--acid);color:var(--ink)}
.btn-lime:hover{background:#D8FA6B;transform:translateY(-1px);box-shadow:0 14px 28px -16px rgba(201,242,78,.95)}
.btn-lime:active{transform:translateY(0);background:#BCE23F}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;min-height:44px}
.link-arrow svg{transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用块 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:8px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:#EFEBFE;color:var(--brand);
}
.badge-acid{background:var(--acid);color:var(--ink)}
.badge-coral{background:#FFE7E0;color:#B63B1C}
.badge-ok{background:#E2F6EC;color:#1C7B4D}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--t3);text-transform:uppercase}
.sec{padding:56px 0}
@media(min-width:768px){.sec{padding:84px 0}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-h2{position:relative;padding-left:14px;font-size:28px}
.sec-h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--acid)}
@media(min-width:768px){.sec-h2{font-size:34px;padding-left:18px}}
.sec-sub{margin-top:10px;font-size:15.5px;color:var(--t2);padding-left:14px;max-width:62ch}
@media(min-width:768px){.sec-sub{padding-left:18px}}
.rule{height:1px;background:var(--line-soft);width:100%}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);padding:22px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DCD6F5}
.chip{
  display:inline-flex;align-items:center;min-height:36px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--t2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:44px 0 40px}
@media(min-width:768px){.hero{padding:64px 0 72px}}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 78% 8%, rgba(108,76,241,.16), transparent 56%),
             radial-gradient(circle at 6% 92%, rgba(201,242,78,.18), transparent 46%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:130px;
  background:linear-gradient(to bottom, rgba(246,245,251,0), var(--mist));
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.hero h1{font-size:32px;letter-spacing:-.02em;line-height:1.16}
@media(min-width:768px){.hero h1{font-size:42px}}
@media(min-width:1024px){.hero h1{font-size:50px}}
.hero-visual{
  position:relative;border-radius:26px;overflow:hidden;min-height:300px;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 34px 70px -34px rgba(20,18,31,.6);
}
.hero-visual img{width:100%;height:100%;min-height:300px;object-fit:cover;transition:transform .5s ease}
.hero-visual:hover img{transform:scale(1.04)}
.hero-visual .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,18,31,.34),rgba(20,18,31,.62))}
.hero-visual .vtext{position:absolute;left:20px;right:20px;bottom:20px;color:#fff}
.stat-mini{display:flex;align-items:baseline;gap:8px}
.stat-mini b{font-size:26px;font-weight:800;color:var(--t1);letter-spacing:-.02em}
.stat-mini span{font-size:13px;color:var(--t3)}
.status-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  background:var(--ink);color:#C8C5D8;border-radius:16px;padding:14px 18px;
  border:1px solid rgba(255,255,255,.08);
}
.status-bar strong{color:#fff}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--acid);box-shadow:0 0 0 4px rgba(201,242,78,.18);flex:0 0 auto}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--line-soft)}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-node{position:absolute;left:-30px;top:6px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--line);}
.tl-item.is-now .tl-node{border-color:var(--acid);background:var(--acid)}
.tl-num{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--brand)}

/* ---------- 内容卡片 ---------- */
.cover{position:relative;overflow:hidden;aspect-ratio:16/9;border-radius:14px;background:#E9E6F5}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .cover img{transform:scale(1.05)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 资讯列表 ---------- */
.news-item{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line-soft);
  border-radius:14px;transition:background-color .22s ease,transform .22s ease;
}
.news-item:hover{background:#F3F0FE}
.news-item:hover .news-title{color:var(--brand)}
.news-thumb{width:132px;height:88px;border-radius:12px;overflow:hidden;flex:0 0 auto;background:#E9E6F5}
@media(min-width:768px){.news-thumb{width:168px;height:104px}}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-item:hover .news-thumb img{transform:scale(1.05)}
.news-title{font-weight:600;font-size:17px;color:var(--t1);transition:color .2s ease}
@media(min-width:768px){.news-title{font-size:19px}}

/* ---------- 评价 ---------- */
.quote{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px 22px;box-shadow:var(--shadow-1);
}
.quote::before{
  content:"“";position:absolute;top:-6px;left:18px;font-size:56px;line-height:1;color:rgba(108,76,241,.22);font-weight:800;
}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(140deg,var(--brand),#9C86FF);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item + .faq-item{margin-top:12px}
.faq-item.open{border-color:#D8D1F3;box-shadow:0 14px 32px -22px rgba(108,76,241,.6)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--t1);
  min-height:56px;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-sign{
  width:28px;height:28px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:#F0EDFE;color:var(--brand);font-weight:700;font-size:16px;line-height:1;
  transition:background-color .22s ease,color .22s ease,transform .22s ease;
}
.faq-item.open .faq-sign{background:var(--acid);color:var(--ink);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:0 20px 20px 23px;border-left:3px solid var(--acid);margin-left:20px;padding-left:16px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;color:#fff;
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);
  border:1px solid rgba(255,255,255,.1);
  padding:34px 24px;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55),transparent 66%);
}
@media(min-width:768px){.cta-band{padding:44px 40px}}
.field-label{display:block;font-size:14px;font-weight:600;color:var(--t1);margin-bottom:7px}
.field{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);background:#fff;
  padding:0 15px;font-size:15.5px;color:var(--t1);transition:border-color .2s ease,box-shadow .2s ease;
}
.field::placeholder{color:var(--t3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(108,76,241,.28)}
.note{font-size:12.5px;color:var(--t3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C8C5D8;margin-top:64px}
.site-footer a{color:#C8C5D8;transition:color .2s ease}
.site-footer a:hover{color:var(--acid)}
.foot-title{font-size:14px;font-weight:700;color:var(--acid);margin-bottom:14px;letter-spacing:.04em}
.foot-list li + li{margin-top:10px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13.5px;color:#8F8AA8}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(20,18,31,.55);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;background:#fff;
  border-radius:0 0 26px 26px;padding:18px 18px 26px;
  transform:translateY(-100%);transition:transform .3s ease;
}
.drawer.open .drawer-panel{transform:translateY(0)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 14px;border-radius:14px;font-size:17px;font-weight:600;color:var(--t1);
  transition:background-color .2s ease,color .2s ease;
}
.drawer-link:hover,.drawer-link.is-active{background:#F3F0FE;color:var(--brand)}
.icon-btn{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line);transition:border-color .2s ease,background-color .2s ease}
.icon-btn:hover{border-color:var(--brand);background:#F7F5FF}
@media(max-width:767px){.hide-sm{display:none}}
@media(min-width:768px){.hide-md{display:none}}

/* roulang page: category1 */
:root{
    --brand:#6C4CF1;
    --brand-deep:#4A2FCC;
    --lime:#C9F24E;
    --coral:#FF7A59;
    --ink:#14121F;
    --ink-2:#2A2350;
    --page:#F6F5FB;
    --card:#FFFFFF;
    --line:#E5E2F0;
    --divider:#EFEDF7;
    --t1:#171528;
    --t2:#55516B;
    --t3:#8B87A0;
    --ok:#2BB673;
    --warn:#E8A33D;
    --err:#E5484D;
    --r-card:20px;
    --r-big:26px;
    --shadow-1:0 1px 2px rgba(20,18,31,.05);
    --shadow-2:0 20px 44px -18px rgba(108,76,241,.38);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--page);
    color:var(--t2);
    font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
    font-size:16.5px;
    line-height:1.85;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button,input,select,textarea{ font:inherit; color:inherit; }
  h1,h2,h3,h4{ color:var(--t1); margin:0; letter-spacing:-.01em; }
  p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  ::selection{ background:rgba(108,76,241,.18); }
  :focus-visible{ outline:2px solid var(--lime); outline-offset:2px; border-radius:8px; }

  .wrap{ width:100%; max-width:1200px; margin:0 auto; padding-left:16px; padding-right:16px; }
  @media (min-width:768px){ .wrap{ padding-left:24px; padding-right:24px; } }

  .section{ padding-top:56px; padding-bottom:56px; }
  @media (min-width:768px){ .section{ padding-top:88px; padding-bottom:88px; } }

  /* ---------- 导航 ---------- */
  .site-head{ position:sticky; top:0; z-index:60; padding-top:12px; padding-bottom:8px; }
  .nav-pill{
    display:flex; align-items:center; gap:14px;
    min-height:64px; padding:8px 10px 8px 16px;
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:0 6px 24px -14px rgba(20,18,31,.28);
    transition:min-height .28s ease, box-shadow .28s ease;
  }
  .site-head.is-scrolled .nav-pill{
    min-height:56px;
    box-shadow:0 14px 34px -16px rgba(20,18,31,.42);
  }
  .brand{ display:flex; align-items:center; gap:10px; min-height:44px; }
  .brand-mark{
    width:38px; height:38px; flex:0 0 38px;
    display:grid; place-items:center;
    border-radius:12px;
    background:linear-gradient(140deg,var(--brand) 0%, var(--brand-deep) 100%);
    color:#fff; font-weight:800; font-size:16px;
    box-shadow:0 8px 18px -10px rgba(108,76,241,.85);
  }
  .brand-mark span{ line-height:1; }
  .brand-text{ font-size:17px; font-weight:800; color:var(--t1); white-space:nowrap; }

  .nav-link{
    position:relative;
    display:inline-flex; align-items:center;
    min-height:44px; padding:0 14px;
    font-size:15px; font-weight:600; color:var(--t2);
    border-radius:999px;
    transition:color .2s ease, transform .2s ease, background .2s ease;
  }
  .nav-link::after{
    content:""; position:absolute; left:14px; right:14px; bottom:6px;
    height:2px; border-radius:2px; background:transparent;
    transition:background .2s ease;
  }
  .nav-link:hover{ color:var(--brand); transform:translateY(-1px); background:rgba(108,76,241,.06); }
  .nav-link:active{ transform:translateY(0); }
  .nav-link.is-active{ color:var(--brand); }
  .nav-link.is-active::after{ background:var(--lime); }

  .btn-lime{
    display:inline-flex; align-items:center; justify-content:center;
    min-height:44px; padding:0 22px;
    background:var(--lime); color:var(--ink);
    font-size:15px; font-weight:700;
    border:1px solid transparent; border-radius:999px;
    transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
  }
  .btn-lime:hover{ transform:translateY(-1px); box-shadow:0 14px 26px -14px rgba(201,242,78,.9); }
  .btn-lime:active{ transform:translateY(0); filter:saturate(.9); }

  .burger{
    margin-left:auto; width:44px; height:44px;
    display:grid; place-items:center; gap:5px;
    background:#fff; border:1px solid var(--line); border-radius:14px;
    cursor:pointer;
  }
  .burger span{ display:block; width:18px; height:2px; background:var(--t1); border-radius:2px; transition:transform .25s ease; }
  .burger:hover{ border-color:var(--brand); }
  .burger:hover span{ background:var(--brand); }

  .hide-sm{ display:flex; }
  @media (max-width:767px){
    .hide-sm{ display:none !important; }
  }
  @media (min-width:768px){
    .burger{ display:none; }
    .nav-pill{ padding-right:8px; }
    nav.hide-sm{ margin-left:auto; }
  }

  /* 抽屉 */
  .drawer-mask{
    position:fixed; inset:0; z-index:80;
    background:rgba(20,18,31,.55);
    opacity:0; pointer-events:none; transition:opacity .28s ease;
  }
  .drawer-mask.is-open{ opacity:1; pointer-events:auto; }
  .drawer{
    position:fixed; top:0; right:0; z-index:90;
    width:min(88vw,360px); height:100%;
    background:#fff; border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .3s ease;
    display:flex; flex-direction:column;
    padding:20px 20px 28px;
    overflow-y:auto;
  }
  .drawer.is-open{ transform:translateX(0); }
  .drawer-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
  .drawer-close{
    width:44px; height:44px; border-radius:14px;
    background:#fff; border:1px solid var(--line); cursor:pointer;
    display:grid; place-items:center; font-size:20px; color:var(--t1);
    transition:border-color .2s ease, color .2s ease;
  }
  .drawer-close:hover{ border-color:var(--brand); color:var(--brand); }
  .drawer-link{
    display:flex; align-items:center; justify-content:space-between;
    min-height:52px; padding:0 14px; margin-bottom:6px;
    font-size:17px; font-weight:700; color:var(--t1);
    border:1px solid var(--line); border-radius:14px;
    transition:border-color .2s ease, color .2s ease, background .2s ease;
  }
  .drawer-link:hover{ border-color:var(--brand); color:var(--brand); background:rgba(108,76,241,.05); }
  .drawer-link.is-active{ color:var(--brand); border-color:rgba(108,76,241,.4); background:rgba(108,76,241,.06); }
  .drawer-meta{ margin-top:18px; padding-top:18px; border-top:1px solid var(--divider); font-size:13.5px; color:var(--t3); line-height:1.9; }
  body.no-scroll{ overflow:hidden; }

  /* ---------- 页头 ---------- */
  .page-head{
    position:relative;
    background:var(--page);
    padding-top:26px; padding-bottom:30px;
    overflow:hidden;
  }
  .page-head::before{
    content:""; position:absolute; right:-140px; top:-180px;
    width:520px; height:520px; border-radius:50%;
    background:radial-gradient(circle,rgba(108,76,241,.16) 0%, rgba(108,76,241,0) 68%);
    pointer-events:none;
  }
  .page-head::after{
    content:""; position:absolute; left:0; right:0; bottom:0; height:1px; background:var(--divider);
  }
  .crumb{ position:relative; display:flex; align-items:center; gap:8px; font-size:13px; color:var(--t3); margin-bottom:16px; flex-wrap:wrap; }
  .crumb a{ color:var(--t3); transition:color .2s ease; }
  .crumb a:hover{ color:var(--brand); }
  .crumb span[aria-current]{ color:var(--t2); }

  h1{ font-size:31px; font-weight:800; line-height:1.2; letter-spacing:-.02em; }
  @media (min-width:768px){ h1{ font-size:44px; line-height:1.14; } }
  @media (min-width:1280px){ h1{ font-size:50px; } }
  .lede{ margin-top:14px; max-width:62ch; font-size:16px; color:var(--t2); }

  h2{ font-size:26px; font-weight:700; line-height:1.28; }
  @media (min-width:768px){ h2{ font-size:33px; } }
  h3{ font-size:19px; font-weight:600; }
  @media (min-width:768px){ h3{ font-size:22px; } }

  .sec-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom:26px; flex-wrap:wrap; }
  .sec-title{ display:flex; gap:14px; align-items:flex-start; }
  .sec-bar{ width:4px; border-radius:4px; background:var(--lime); align-self:stretch; min-height:34px; margin-top:4px; }
  .sec-sub{ margin-top:8px; font-size:15px; color:var(--t3); max-width:60ch; }

  /* ---------- 通用 ---------- */
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
  }
  .card-hover:hover{ transform:translateY(-4px); box-shadow:var(--shadow-2); border-color:rgba(108,76,241,.32); }

  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:4px 10px; border-radius:6px;
    font-size:12.5px; font-weight:600; letter-spacing:.01em;
    background:#EFEBFE; color:var(--brand); white-space:nowrap;
  }
  .badge-lime{ background:var(--lime); color:#1E2A05; }
  .badge-coral{ background:rgba(255,122,89,.16); color:#B23A1C; }
  .badge-grey{ background:#F1F0F7; color:var(--t3); }
  .badge-ok{ background:rgba(43,182,115,.14); color:#177A4C; }

  .meta{ font-size:13px; color:var(--t3); }

  .btn-primary{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:48px; padding:0 28px;
    background:var(--brand); color:#fff;
    font-size:15.5px; font-weight:600; border-radius:999px;
    border:1px solid transparent;
    transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .btn-primary:hover{ background:var(--brand-deep); transform:translateY(-1px); box-shadow:0 16px 30px -16px rgba(74,47,204,.9); }
  .btn-primary:active{ transform:translateY(0); background:#3E27AC; }

  .btn-ghost{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:48px; padding:0 26px;
    background:#fff; color:var(--t1);
    font-size:15.5px; font-weight:600;
    border:1px solid var(--line); border-radius:999px;
    transition:border-color .2s ease, color .2s ease, transform .2s ease;
  }
  .btn-ghost:hover{ border-color:var(--brand); color:var(--brand); transform:translateY(-1px); }
  .btn-ghost:active{ transform:translateY(0); }

  .text-btn{
    display:inline-flex; align-items:center; gap:6px;
    min-height:44px; font-size:14.5px; font-weight:600; color:var(--brand);
  }
  .text-btn span{ transition:transform .22s ease; }
  .text-btn:hover span{ transform:translateX(3px); }
  .text-btn:hover{ text-decoration:underline; text-underline-offset:4px; }

  /* ---------- 当前版本 ---------- */
  .current-card{ padding:26px; border-radius:var(--r-big); }
  @media (min-width:768px){ .current-card{ padding:34px; } }
  .cur-ver{ font-size:40px; font-weight:800; color:var(--t1); letter-spacing:-.03em; line-height:1; }
  @media (min-width:768px){ .cur-ver{ font-size:52px; } }
  .cur-label{ font-size:13px; color:var(--t3); margin-bottom:10px; letter-spacing:.06em; }
  .cur-grid{ display:grid; gap:1px; margin-top:26px; background:var(--divider); border-radius:16px; overflow:hidden; }
  @media (min-width:640px){ .cur-grid{ grid-template-columns:repeat(3,1fr); } }
  .cur-cell{ background:#fff; padding:18px 18px 20px; }
  .cur-cell dt{ font-size:13px; color:var(--t3); margin-bottom:6px; }
  .cur-cell dd{ margin:0; font-size:16px; font-weight:600; color:var(--t1); }

  .side-panel{
    padding:24px; border-radius:var(--r-big);
    background:linear-gradient(160deg,var(--ink) 0%, var(--ink-2) 100%);
    border:1px solid rgba(255,255,255,.10);
    color:#C8C5D8;
  }
  .side-panel h3{ color:#fff; font-size:18px; }
  .side-panel .num{ font-size:34px; font-weight:800; color:#fff; line-height:1; }
  .side-panel .num em{ font-style:normal; font-size:14px; font-weight:500; color:var(--t3); margin-left:6px; }
  .side-row{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; padding:14px 0; border-bottom:1px solid rgba(255,255,255,.10); }
  .side-row:last-child{ border-bottom:0; padding-bottom:0; }

  /* ---------- 更新要点 ---------- */
  .point-list{ display:grid; gap:14px; }
  @media (min-width:900px){ .point-list{ grid-template-columns:repeat(2,1fr); } }
  .point{
    display:flex; gap:16px; align-items:flex-start;
    padding:20px 22px; background:#fff;
    border:1px solid var(--line); border-left:3px solid var(--lime);
    border-radius:14px;
    transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .point:hover{ transform:translateY(-3px); box-shadow:0 18px 34px -22px rgba(20,18,31,.4); border-color:rgba(108,76,241,.28); border-left-color:var(--lime); }
  .point-no{ font-size:15px; font-weight:800; color:var(--brand); letter-spacing:.04em; min-width:34px; }
  .point h3{ font-size:17px; margin-bottom:6px; }
  .point p{ font-size:14.5px; color:var(--t2); }

  /* ---------- 时间轴 ---------- */
  .tl-layout{ display:grid; gap:36px; }
  @media (min-width:1024px){ .tl-layout{ grid-template-columns:minmax(0,1fr) 250px; gap:44px; } }

  .tl{ position:relative; }
  .tl::before{
    content:""; position:absolute; left:9px; top:12px; bottom:12px;
    width:2px; background:var(--line); border-radius:2px;
  }
  .tl-item{ position:relative; padding-left:40px; padding-bottom:26px; scroll-margin-top:110px; }
  .tl-item:last-child{ padding-bottom:0; }
  .tl-dot{
    position:absolute; left:2px; top:10px;
    width:16px; height:16px; border-radius:50%;
    background:#fff; border:2px solid var(--line);
  }
  .tl-dot.is-new{
    background:var(--lime); border-color:var(--lime);
    box-shadow:0 0 0 5px rgba(201,242,78,.3);
  }
  .tl-card{ padding:22px; }
  @media (min-width:768px){ .tl-card{ padding:26px 28px; } }
  .tl-top{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-bottom:14px; }
  .tl-ver{ font-size:23px; font-weight:800; color:var(--t1); letter-spacing:-.02em; }
  @media (min-width:768px){ .tl-ver{ font-size:26px; } }
  .tl-date{ margin-left:auto; font-size:13px; color:var(--t3); }
  .tl-list{ display:grid; gap:10px; margin-bottom:14px; }
  .tl-list li{ position:relative; padding-left:18px; font-size:15px; color:var(--t2); }
  .tl-list li::before{
    content:""; position:absolute; left:2px; top:11px;
    width:6px; height:6px; border-radius:50%; background:var(--brand); opacity:.65;
  }

  .tl-index{ padding:20px; border-radius:var(--r-big); }
  .tl-index-title{ font-size:13px; font-weight:700; color:var(--t3); letter-spacing:.08em; margin-bottom:14px; }
  .idx-link{
    display:flex; align-items:center; justify-content:space-between; gap:10px;
    min-height:44px; padding:0 12px; margin-bottom:4px;
    font-size:14.5px; font-weight:600; color:var(--t2);
    border-radius:12px; border:1px solid transparent;
    transition:background .2s ease, color .2s ease, border-color .2s ease;
  }
  .idx-link span{ font-size:12.5px; font-weight:500; color:var(--t3); }
  .idx-link:hover{ background:rgba(108,76,241,.07); color:var(--brand); border-color:rgba(108,76,241,.22); }
  .idx-link.is-current{ background:#EFEBFE; color:var(--brand); }
  @media (min-width:1024px){
    .tl-index{ position:sticky; top:104px; align-self:start; }
  }
  @media (max-width:1023px){
    .tl-index{ padding:16px; }
    .tl-index ul{ display:flex; gap:8px; overflow-x:auto; padding-bottom:6px; }
    .tl-index li{ flex:0 0 auto; margin:0; }
    .idx-link{ white-space:nowrap; border:1px solid var(--line); margin:0; }
  }

  /* ---------- 自查图文 ---------- */
  .check-layout{ display:grid; gap:28px; align-items:center; }
  @media (min-width:900px){ .check-layout{ grid-template-columns:5fr 7fr; gap:44px; } }
  .check-visual{
    position:relative; border-radius:var(--r-big); overflow:hidden;
    border:1px solid var(--line); box-shadow:var(--shadow-1);
    aspect-ratio:4/3;
  }
  .check-visual img{ width:100%; height:100%; object-fit:cover; }
  .check-visual::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(20,18,31,.15) 0%, rgba(20,18,31,.62) 100%);
  }
  .check-tag{
    position:absolute; left:18px; bottom:18px; z-index:2;
    display:inline-flex; align-items:center; gap:8px;
    padding:7px 14px; border-radius:999px;
    background:var(--lime); color:#1E2A05; font-size:13px; font-weight:700;
  }
  .step-row{ display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--divider); }
  .step-row:last-child{ border-bottom:0; }
  .step-no{
    flex:0 0 auto; width:38px; height:38px; border-radius:12px;
    display:grid; place-items:center;
    background:#EFEBFE; color:var(--brand); font-size:14px; font-weight:800;
  }
  .step-row h3{ font-size:17px; margin-bottom:5px; }
  .step-row p{ font-size:14.5px; }

  /* ---------- FAQ ---------- */
  .faq-list{ display:grid; gap:12px; }
  .faq-item{
    background:#fff; border:1px solid var(--line); border-radius:16px;
    overflow:hidden; transition:border-color .25s ease, box-shadow .25s ease;
  }
  .faq-item[open]{ border-color:rgba(108,76,241,.34); box-shadow:0 16px 34px -24px rgba(108,76,241,.45); }
  .faq-item:hover{ border-color:rgba(108,76,241,.28); }
  .faq-q{
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    min-height:60px; padding:16px 20px;
    font-size:16.5px; font-weight:600; color:var(--t1);
    cursor:pointer; list-style:none;
  }
  .faq-q::-webkit-details-marker{ display:none; }
  .faq-q::after{
    content:"+"; flex:0 0 auto;
    width:28px; height:28px; border-radius:50%;
    display:grid; place-items:center;
    background:#EFEBFE; color:var(--brand); font-size:17px; font-weight:600;
    transition:background .2s ease, color .2s ease;
  }
  .faq-item[open] .faq-q::after{ content:"−"; background:var(--lime); color:#1E2A05; }
  .faq-a{ padding:0 20px 20px 23px; border-left:3px solid var(--lime); margin-left:0; }
  .faq-a p{ font-size:15.5px; line-height:1.8; color:var(--t2); }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative; overflow:hidden;
    border-radius:var(--r-big);
    background:linear-gradient(150deg,var(--ink) 0%, var(--ink-2) 100%);
    border:1px solid rgba(255,255,255,.10);
    padding:34px 24px;
    scroll-margin-top:110px;
  }
  @media (min-width:768px){ .cta-band{ padding:52px 48px; } }
  .cta-band::before{
    content:""; position:absolute; right:-120px; top:-140px;
    width:420px; height:420px; border-radius:50%;
    background:radial-gradient(circle,rgba(108,76,241,.5) 0%, rgba(108,76,241,0) 70%);
  }
  .cta-band h2{ color:#fff; position:relative; }
  .cta-band p{ position:relative; color:#C8C5D8; margin-top:12px; max-width:56ch; font-size:15.5px; }
  .cta-actions{ position:relative; display:flex; flex-wrap:wrap; gap:14px; margin-top:26px; }
  .cta-note{ position:relative; margin-top:16px; font-size:12.5px; color:var(--t3); }

  /* ---------- 页脚 ---------- */
  .site-footer{ margin-top:80px; background:var(--ink); color:#C8C5D8; }
  .foot-title{ font-size:14px; font-weight:600; color:var(--lime); margin-bottom:14px; }
  .foot-list li{ margin-bottom:10px; }
  .foot-list a{ transition:color .2s ease; }
  .foot-list a:hover{ color:#fff; }
  .foot-bottom{
    padding:18px 0 26px;
    border-top:1px solid rgba(255,255,255,.10);
    font-size:13px; color:#8B87A0;
  }
  .site-footer .wrap{ padding-left:16px; padding-right:16px; }
  @media (min-width:768px){ .site-footer .wrap{ padding-left:24px; padding-right:24px; } }

  @media (max-width:520px){
    body{ font-size:15.5px; }
    h1{ font-size:26px; }
    h2{ font-size:22px; }
    .cur-ver{ font-size:34px; }
    .nav-pill{ padding-left:12px; }
    .brand-text{ font-size:15.5px; }
    .section{ padding-top:48px; padding-bottom:48px; }
  }

/* roulang page: article */
:root{
  --violet:#6C4CF1; --violet-deep:#4A2FCC; --lime:#C9F24E; --coral:#FF7A59;
  --ink:#14121F; --ink-2:#2A2350; --bg:#F6F5FB; --card:#FFFFFF;
  --line:#E5E2F0; --divider:#EFEDF7;
  --t1:#171528; --t2:#55516B; --t3:#8B87A0;
  --ok:#2BB673; --warn:#E8A33D; --err:#E5484D;
  --r-card:20px; --r-lg:26px; --r-input:12px;
  --sh-1:0 1px 2px rgba(20,18,31,.05);
  --sh-2:0 20px 44px -18px rgba(108,76,241,.38);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.7;overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.wrap{padding:0 24px}}
.hide-sm{display:none}
@media (min-width:768px){.hide-sm{display:flex}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding-top:12px}
.nav-pill{
  display:flex;align-items:center;gap:14px;height:64px;padding:0 14px 0 16px;
  background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-1);
  transition:height .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{height:56px;box-shadow:0 14px 32px -16px rgba(20,18,31,.30)}
.brand{display:flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--violet),var(--violet-deep));color:#fff;
  font-weight:800;font-size:16px;letter-spacing:0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--t1);white-space:nowrap}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;
  font-size:15px;font-weight:600;color:var(--t2);border-radius:999px;
  transition:color .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--violet);transform:translateY(-1px)}
.nav-link:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.nav-link.is-active{color:var(--violet)}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--lime);border-radius:2px;
}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;
  display:grid;place-items:center;gap:4px;cursor:pointer;margin-left:auto;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px}
.menu-btn:hover{border-color:var(--violet)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--violet);color:#fff;box-shadow:0 12px 26px -16px rgba(108,76,241,.85)}
.btn-primary:hover{background:var(--violet-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--violet);color:var(--violet)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#B9E63A;transform:translateY(-1px)}
.btn-lime:active{transform:translateY(0)}
.btn-light-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);color:#fff}
.btn-light-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:8px;
  font-size:12.5px;font-weight:600;background:#EFEBFE;color:var(--violet);
}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-coral{background:#FFEDE7;color:#C2431F}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--t2)}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13.5px;font-weight:500;color:var(--t2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--violet);color:var(--violet)}

/* ---------- 页面头 ---------- */
.page-head{position:relative;padding:34px 0 42px;background:#fff;border-bottom:1px solid var(--divider);overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,#fff 0%,rgba(255,255,255,.95) 44%,rgba(255,255,255,.74) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-190px;width:440px;height:440px;
  background:radial-gradient(circle,rgba(108,76,241,.18),transparent 70%);pointer-events:none;
}
.page-head .wrap{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3)}
.crumb a:hover{color:var(--violet)}
.crumb .sep{color:#CFCBE0}
.crumb .current{color:var(--t3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.head-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.page-head h1{
  margin-top:16px;max-width:900px;color:var(--t1);
  font-size:clamp(28px,4vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.02em;
}
.head-lead{margin-top:14px;max-width:64ch;font-size:16.5px;line-height:1.85;color:var(--t2)}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;
  font-size:13px;color:var(--t3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#D6D2E6}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}

/* ---------- 文章布局 ---------- */
.section{padding:44px 0}
@media (min-width:768px){.section{padding:60px 0}}
.article-layout{display:grid;gap:36px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:240px minmax(0,760px);justify-content:center;gap:44px}
}
.toc-col{display:none}
@media (min-width:1024px){.toc-col{display:block}}
.toc{position:sticky;top:96px}
.toc-title{font-size:13px;font-weight:600;color:var(--t3);letter-spacing:.04em;margin-bottom:12px}
.toc-list a{
  display:block;padding:9px 12px;font-size:14px;line-height:1.5;color:var(--t2);
  border-left:2px solid var(--divider);transition:all .2s ease;
}
.toc-list a:hover,.toc-list a.is-current{color:var(--violet);border-left-color:var(--violet);background:#F7F5FE}
.toc-fold{display:block;margin-bottom:26px}
@media (min-width:1024px){.toc-fold{display:none}}
.toc-fold summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:#fff;
  font-size:14px;font-weight:600;color:var(--t1);
}
.toc-fold summary::-webkit-details-marker{display:none}
.toc-fold summary::after{content:"＋";color:var(--violet)}
.toc-fold[open] summary::after{content:"－"}
.toc-fold .toc-list{margin:10px 0 0;padding:6px 0}

/* ---------- 正文排版 ---------- */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 20px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.article-body{padding:40px 44px}}
.article-body>p:first-child{font-size:17.5px;color:#3F3B55}
.article-body p{font-size:17px;line-height:1.85;color:var(--t2);margin:1.2em 0}
.article-body h2{
  position:relative;font-size:24px;line-height:1.35;font-weight:700;color:var(--t1);
  margin:2em 0 .7em;padding-left:14px;border-left:4px solid var(--lime);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--t1);margin:1.7em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--t1);margin:1.5em 0 .5em}
.article-body ul,.article-body ol{margin:1.1em 0;padding-left:1.4em}
.article-body ul li{list-style:none;position:relative;margin:.55em 0;font-size:16.5px;line-height:1.85}
.article-body ul li::before{
  content:"";position:absolute;left:-1.1em;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--violet);
}
.article-body ol{list-style:decimal}
.article-body ol li{margin:.55em 0;font-size:16.5px;line-height:1.85}
.article-body ol li::marker{color:var(--violet);font-weight:700}
.article-body a{color:var(--violet);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{font-weight:600;text-decoration-thickness:2px}
.article-body strong{color:var(--t1);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:#F4F1FE;border-left:4px solid var(--violet);
  border-radius:0 14px 14px 0;color:#453F63;font-size:16.5px;
}
.article-body blockquote p{margin:.4em 0;font-size:16.5px;color:#453F63}
.article-body img{border-radius:14px;margin:26px auto;max-width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--t3);text-align:center;margin-top:-12px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;overflow:hidden;border-radius:12px}
.article-body th{background:#EFEBFE;color:var(--t1);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--line)}
.article-body tbody tr:nth-child(even) td{background:#FAF9FE}
.article-body code{background:#F1EFFA;color:var(--violet-deep);padding:2px 6px;border-radius:6px;font-size:14.5px}
.article-body hr{border:0;border-top:1px solid var(--divider);margin:2.2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;background:#EFEBFE;
  display:grid;place-items:center;color:var(--violet);
}
.empty-state h2{font-size:20px;font-weight:700;color:var(--t1)}
.empty-state p{margin-top:10px;font-size:15px;color:var(--t3)}
.empty-state .btn{margin-top:22px}

/* ---------- 文末区 ---------- */
.after-body{margin-top:26px;display:grid;gap:18px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.panel-title{font-size:15px;font-weight:700;color:var(--t1);margin-bottom:14px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.share-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}
.share-actions{display:flex;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--t2);
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--violet);color:var(--violet)}
.link-btn{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--violet);
}
.link-btn svg{transition:transform .2s ease}
.link-btn:hover svg{transform:translateX(3px)}
.step-nav{display:grid;gap:14px}
@media (min-width:640px){.step-nav{grid-template-columns:1fr 1fr}}
.step-item{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;border:1px solid var(--line);
  border-radius:var(--r-card);background:#fff;transition:all .24s ease;
}
.step-item:hover{border-color:var(--violet);transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-item span{font-size:12.5px;color:var(--t3);font-weight:600}
.step-item strong{font-size:16px;color:var(--t1);font-weight:600;line-height:1.5}

/* ---------- 卡片 ---------- */
.grid-cards{display:grid;gap:20px}
@media (min-width:640px){.grid-cards{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.grid-cards{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#EFEBFE}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-thumb img{transform:scale(1.05)}
.card-badge{position:absolute;top:12px;left:12px}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--t1)}
.card-body p{font-size:14.5px;line-height:1.75;color:var(--t2)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t3)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--t1);transition:color .2s ease;
}
.faq-q:hover{color:var(--violet)}
.faq-q .sign{flex:0 0 24px;font-size:20px;font-weight:400;color:var(--violet);text-align:center}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a-inner{padding:0 20px 20px;font-size:15.5px;line-height:1.8;color:var(--t2);border-left:3px solid transparent}
.faq-item.is-open .faq-a-inner{border-left-color:var(--lime);margin-left:0;padding-left:17px}

/* ---------- CTA 大条 ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:28px;padding:34px 26px;
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 100%);
  display:flex;flex-direction:column;gap:24px;
}
@media (min-width:768px){.cta-bar{padding:46px 48px;flex-direction:row;align-items:center;justify-content:space-between}}
.cta-bar::after{
  content:"";position:absolute;right:-100px;top:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(108,76,241,.55),transparent 68%);pointer-events:none;
}
.cta-bar h2{position:relative;z-index:2;font-size:clamp(22px,3vw,30px);font-weight:800;color:#fff;line-height:1.3;letter-spacing:-.01em}
.cta-bar p{position:relative;z-index:2;margin-top:10px;font-size:15px;line-height:1.8;color:#C8C5D8;max-width:52ch}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C8C5D8;margin-top:10px}
.site-footer a{color:#C8C5D8;transition:color .2s ease}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-title{color:var(--lime);font-size:14px;font-weight:600;margin-bottom:14px}
.foot-list li{margin-bottom:10px}
.foot-list li:last-child{margin-bottom:0}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:18px 0 28px;
  font-size:13px;color:#8F8BA6;
}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;left:0;right:0;top:0;z-index:90;background:#fff;
  border-radius:0 0 26px 26px;padding:18px 20px 26px;transform:translateY(-104%);
  transition:transform .3s ease;box-shadow:0 30px 60px -30px rgba(20,18,31,.5);
}
.drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;font-size:18px;color:var(--t1);
}
.drawer-close:hover{border-color:var(--violet);color:var(--violet)}
.drawer-nav{margin:20px 0 6px;display:grid;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 4px;
  border-bottom:1px solid var(--divider);font-size:17px;font-weight:600;color:var(--t1);
}
.drawer-nav a:last-child{border-bottom:0}
.drawer-nav a:hover{color:var(--violet)}
.drawer-note{margin-top:14px;font-size:13px;color:var(--t3)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,31,.55);z-index:80;opacity:0;pointer-events:none;
  transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
body.is-locked{overflow:hidden}

@media (max-width:520px){
  .article-body{padding:20px 16px;border-radius:20px}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .cta-bar{padding:26px 20px;border-radius:22px}
  .step-nav{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FCC;
  --brand-soft:#EFEBFE;
  --lime:#C9F24E;
  --coral:#FF7A59;
  --ink:#171528;
  --ink-2:#55516B;
  --ink-3:#8B87A0;
  --line:#E5E2F0;
  --divider:#EFEDF7;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --night:#14121F;
  --night-2:#2A2350;
  --r-card:20px;
  --r-lg:28px;
  --r-btn:999px;
  --sh-1:0 1px 2px rgba(20,18,31,.05);
  --sh-2:0 20px 44px -18px rgba(108,76,241,.38);
  --sh-3:0 14px 34px -20px rgba(20,18,31,.45);
  --t:220ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.22;letter-spacing:-.01em;}
h1{font-size:clamp(28px,4.2vw,46px);font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;}
h3{font-size:20px;font-weight:600;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){.wrap{padding-left:24px;padding-right:24px;}}
.sec{padding:56px 0;}
@media (min-width:1024px){.sec{padding:96px 0;}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  padding:5px 12px;border-radius:999px;background:var(--brand-soft);
}
.sec-title{position:relative;padding-left:14px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--lime);
}
.lead{color:var(--ink-2);font-size:16.5px;max-width:68ch;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:12px;z-index:60;padding:0 16px;}
@media (min-width:768px){.site-header{padding:0 24px;}}
.nav-shell{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  height:64px;padding:0 12px 0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:height var(--t),box-shadow var(--t);
}
.site-header.is-scrolled .nav-shell{height:56px;box-shadow:var(--sh-3);}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:16px;font-weight:800;
  box-shadow:0 8px 18px -10px rgba(108,76,241,.9);
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:40px;padding:0 13px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:20px;height:2px;border-radius:2px;background:var(--lime);
  transition:transform var(--t);
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link:hover::after,.nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 20px;border-radius:999px;
  background:var(--lime);color:var(--night);font-size:15px;font-weight:700;
  transition:transform var(--t),box-shadow var(--t),background var(--t);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 14px 26px -16px rgba(201,242,78,.9);background:#d6fa63;}
.nav-cta:active{transform:translateY(0);}
.burger{
  width:44px;height:44px;border-radius:14px;display:none;place-items:center;
  border:1px solid var(--line);background:#fff;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:3px auto;transition:transform var(--t);}
.burger:hover span:first-child{transform:translateY(-1px);}
@media (max-width:767px){
  .hide-sm{display:none !important;}
  .burger{display:grid;}
}
@media (min-width:768px){.hide-sm{display:flex;}}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;transition:opacity .24s ease,visibility .24s ease;}
.drawer.is-open{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(20,18,31,.55);}
.drawer-panel{
  position:absolute;left:0;right:0;top:0;
  background:#fff;border-radius:0 0 28px 28px;
  padding:18px 20px 26px;
  transform:translateY(-14px);transition:transform .28s cubic-bezier(.4,0,.2,1);
  max-height:100vh;overflow:auto;
}
.drawer.is-open .drawer-panel{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--divider);}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  font-size:22px;line-height:1;color:var(--ink-2);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand);}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;font-size:17px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--divider);
}
.drawer-link:hover{color:var(--brand);}
.drawer-link.is-active{color:var(--brand);}
.drawer-link.is-active::after{content:"当前";font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:3px 10px;}
.drawer-cta{margin-top:18px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(74,47,204,.9);}
.btn-primary:active{transform:translateY(0);background:#3f27ad;}
.btn-lime{background:var(--lime);color:var(--night);}
.btn-lime:hover{background:#d6fa63;transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(201,242,78,.95);}
.btn-lime:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;min-height:44px;}
.link-arrow svg{transition:transform var(--t);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- page head ---------- */
.page-head{position:relative;overflow:hidden;padding:36px 0 30px;}
.page-head::after{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(108,76,241,.16),rgba(108,76,241,0) 68%);
  pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.crumb a{color:var(--ink-3);min-height:44px;display:inline-flex;align-items:center;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C9C5D8;}
.crumb .now{color:var(--ink-2);}
.page-head .lead{margin-top:16px;}
.head-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.stat-pill{
  display:inline-flex;align-items:baseline;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:10px 16px;box-shadow:var(--sh-1);
}
.stat-pill b{font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.stat-pill span{font-size:13px;color:var(--ink-3);}

/* ---------- tabs & chips ---------- */
.toolbar{display:grid;gap:16px;}
.tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab{
  flex:none;min-height:44px;display:inline-flex;align-items:center;padding:0 20px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.tab:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.tab.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.chips::-webkit-scrollbar{display:none;}
.chip{
  flex:none;min-height:40px;display:inline-flex;align-items:center;gap:6px;
  padding:0 16px;border-radius:999px;border:1px dashed var(--line);background:#fff;
  font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-on{background:var(--brand-soft);border:1px solid var(--brand);color:var(--brand);font-weight:600;}
.chip em{font-style:normal;font-size:12px;color:var(--ink-3);}
.chip.is-on em{color:var(--brand);}

/* ---------- gameplay grid ---------- */
.gcard{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),opacity var(--t);
}
.gcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.gcard-media{position:relative;aspect-ratio:4/3;overflow:hidden;}
.gcard-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.4,0,.2,1);}
.gcard:hover .gcard-media img{transform:scale(1.05);}
.gcard-overlay{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(20,18,31,.92) 0%,rgba(20,18,31,.62) 42%,rgba(20,18,31,.08) 74%);
}
.gcard-body{position:absolute;left:0;right:0;bottom:0;padding:20px;}
.gcard-body h3{color:#fff;font-size:19px;font-weight:700;line-height:1.35;}
.gcard-meta{margin-top:8px;font-size:13px;color:rgba(255,255,255,.72);}
.diff{
  position:absolute;left:16px;top:16px;z-index:2;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:5px 12px;border-radius:8px;
}
.diff-easy{background:var(--lime);color:var(--night);}
.diff-mid{background:var(--brand-soft);color:var(--brand-deep);}
.diff-hard{background:var(--coral);color:#fff;}
.gcard-top{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 10px;border-radius:8px;background:var(--brand-soft);color:var(--brand);}
.badge-lime{background:rgba(201,242,78,.28);color:#4c5a12;}
.gcard.is-hidden{display:none;}
.grid-empty{
  display:none;text-align:center;padding:56px 20px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:#fff;
}
.grid-empty.is-on{display:block;}
.grid-empty p{margin:10px 0 18px;font-size:15px;color:var(--ink-3);}
.grid-empty svg{opacity:.4;}

/* ---------- steps ---------- */
.steps{border-top:1px solid var(--divider);}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:18px;
  padding:26px 0;border-bottom:1px solid var(--divider);
  transition:background var(--t),padding-left var(--t);
}
.step:hover{background:#fff;padding-left:12px;}
.step .num{
  font-size:30px;font-weight:800;color:transparent;
  -webkit-text-stroke:1.4px rgba(108,76,241,.55);letter-spacing:-.02em;line-height:1.2;
}
.step h3{font-size:19px;}
.step p{margin-top:8px;font-size:15.5px;color:var(--ink-2);}
.step .tagline{margin-top:10px;font-size:13px;color:var(--ink-3);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:#D8D1F7;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .pm{
  flex:none;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;font-weight:700;line-height:1;
  transition:background var(--t),color var(--t);
}
.faq-item[open] summary .pm{background:var(--lime);color:var(--night);}
.faq-body{padding:0 22px 22px;border-left:3px solid var(--lime);margin:0 0 0 22px;padding-left:18px;}
.faq-body p{font-size:15.5px;line-height:1.8;}

/* ---------- cta ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(135deg,var(--night),var(--night-2));
  padding:44px 28px;
}
.cta-bar::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(108,76,241,.55),rgba(108,76,241,0) 68%);
}
.cta-bar h2{color:#fff;font-size:clamp(23px,2.6vw,32px);}
.cta-bar p{color:#C8C5D8;margin-top:12px;max-width:56ch;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-bar .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.cta-bar .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:var(--lime);}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:#C8C5D8;margin-top:24px;}
.site-footer p{color:#C8C5D8;}
.foot-title{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:14px;}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.foot-list a{display:inline-flex;align-items:center;min-height:32px;color:#C8C5D8;}
.foot-list a:hover{color:var(--lime);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:18px 0 26px;font-size:13px;color:#9C98B4;
}
.site-footer .brand-mark{background:linear-gradient(140deg,var(--brand),#8A6BFF);}

/* roulang page: category3 */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FCC;
  --brand-soft:#EFEBFE;
  --lime:#C9F24E;
  --coral:#FF7A59;
  --ink:#14121F;
  --ink-2:#2A2350;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --line:#E5E2F0;
  --line-2:#EFEDF7;
  --t1:#171528;
  --t2:#55516B;
  --t3:#8B87A0;
  --ok:#2BB673;
  --warn:#E8A33D;
  --err:#E5484D;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:26px;
  --shadow-1:0 1px 2px rgba(20,18,31,.05);
  --shadow-2:0 20px 44px -18px rgba(108,76,241,.38);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
section[id],div[id].anchor{scroll-margin-top:104px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.wrap{padding-left:24px;padding-right:24px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:10px;z-index:60;transition:padding .25s ease}
.nav-shell{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 14px;
  box-shadow:0 10px 26px -20px rgba(20,18,31,.45);
  transition:padding .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck .nav-shell{padding:6px 12px;box-shadow:0 16px 34px -20px rgba(20,18,31,.55)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 10px 20px -12px rgba(108,76,241,.95);
}
.brand-text{font-size:16px;font-weight:800;color:var(--t1);letter-spacing:-.01em;white-space:nowrap}
.hide-sm{display:none}
@media (min-width:768px){.hide-sm{display:flex !important}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;font-size:15px;font-weight:600;color:var(--t2);
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--lime);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-cta{display:none}
@media (min-width:768px){.nav-cta{display:inline-flex}}
.menu-toggle{
  display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;cursor:pointer;transition:.2s;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}
@media (min-width:768px){.menu-toggle{display:none}}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(20,18,31,.55);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(86vw,360px);height:100%;
  background:#fff;padding:20px 18px 32px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line-2)}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;transition:.2s;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:14px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:14px;
  font-size:16px;font-weight:600;color:var(--t1);transition:.2s;
}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:var(--brand-soft);color:var(--brand)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand)}
.drawer-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-2);font-size:14px;color:var(--t3);line-height:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:.2s ease;white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 14px 28px -18px rgba(108,76,241,.95)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 18px 32px -18px rgba(74,47,204,.95)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#bde63f;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--t1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.btn-text svg{transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(3px)}

/* ---------- page head ---------- */
.page-head{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line-2);padding:22px 0 44px}
.page-head-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.14;
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-180px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.20),rgba(108,76,241,0) 66%);
  pointer-events:none;
}
.page-head-inner{position:relative;z-index:2}
.breadcrumb{position:relative;z-index:2;font-size:13px;color:var(--t3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#C6C2D8}
.breadcrumb a{color:var(--t3);transition:.2s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb [aria-current="page"]{color:var(--t2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-top:20px;
  font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:6px 14px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(201,242,78,.35)}
.page-head h1{
  margin-top:16px;font-size:clamp(28px,5vw,44px);line-height:1.2;font-weight:800;
  letter-spacing:-.02em;color:var(--t1);max-width:16em;
}
.lede{margin-top:16px;font-size:16px;line-height:1.85;color:var(--t2);max-width:62ch}
.head-stats{display:flex;flex-wrap:wrap;gap:14px 36px;margin-top:26px}
.head-stats li{display:flex;flex-direction:column}
.head-stats strong{font-size:22px;font-weight:800;color:var(--t1);letter-spacing:-.01em}
.head-stats span{font-size:13px;color:var(--t3)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
.sec-title{
  position:relative;padding-left:16px;font-size:clamp(22px,3vw,30px);
  font-weight:700;color:var(--t1);letter-spacing:-.01em;line-height:1.3;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:var(--lime);
}
.sec-sub{margin-top:10px;font-size:15px;color:var(--t3);max-width:64ch}

/* ---------- lane list ---------- */
.lane-grid{display:grid;gap:14px;grid-template-columns:1fr;margin-top:26px}
@media (min-width:640px){.lane-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.lane-grid{grid-template-columns:repeat(4,1fr)}}
.lane{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.lane:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(108,76,241,.4)}
.lane-ico{
  width:38px;height:38px;flex:0 0 auto;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;
}
.lane h3{font-size:16px;font-weight:700;color:var(--t1);line-height:1.4}
.lane p{margin-top:4px;font-size:13.5px;line-height:1.7;color:var(--t3)}

/* ---------- support layout ---------- */
.support-layout{display:grid;grid-template-columns:1fr;gap:28px;margin-top:28px}
@media (min-width:1024px){.support-layout{grid-template-columns:250px minmax(0,1fr);gap:40px}}
.side-col{display:none}
@media (min-width:1024px){
  .side-col{display:block;position:sticky;top:100px;align-self:start}
}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px}
.side-title{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--t3);margin-bottom:12px}
.toc{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;padding:9px 12px;border-radius:10px;border-left:2px solid transparent;
  font-size:14px;font-weight:600;color:var(--t2);transition:.18s ease;
}
.toc-link:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.toc-link.is-current{background:var(--brand-soft);color:var(--brand);border-left-color:var(--lime)}
.side-foot{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--t3);line-height:1.8}
.side-foot .btn{margin-top:12px;width:100%}

.toc-mobile{display:block;margin-bottom:18px}
@media (min-width:1024px){.toc-mobile{display:none}}
.toc-mobile details{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.toc-mobile summary{
  list-style:none;cursor:pointer;padding:16px 18px;font-size:15px;font-weight:600;color:var(--t1);
  display:flex;align-items:center;justify-content:space-between;min-height:48px;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--brand);font-size:18px;line-height:1}
.toc-mobile details[open] summary::after{content:"−"}
.toc-mobile nav{padding:0 10px 12px}
.toc-mobile .toc-link{min-height:44px;display:flex;align-items:center}

/* ---------- panels ---------- */
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:22px;box-shadow:var(--shadow-1);
}
@media (min-width:768px){.panel{padding:32px}}
.panel+.panel{margin-top:22px}
.panel-intro{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--t2);max-width:68ch}

/* ---------- steps ---------- */
.steps{display:grid;gap:12px;margin-top:22px}
.step{
  display:flex;gap:14px;padding:16px;border-radius:16px;
  background:#FBFBFE;border:1px solid var(--line-2);transition:.2s ease;
}
.step:hover{border-color:rgba(108,76,241,.35);background:#fff}
.step-num{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);font-size:13px;font-weight:800;display:grid;place-items:center;letter-spacing:.02em;
}
.step h3{font-size:16px;font-weight:700;color:var(--t1);line-height:1.45}
.step p{margin-top:4px;font-size:14.5px;line-height:1.75;color:var(--t2)}

/* ---------- split blocks ---------- */
.split-two{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px}
@media (min-width:768px){.split-two{grid-template-columns:1fr 1fr}}
.mini-card{
  background:#FBFBFE;border:1px solid var(--line-2);border-radius:16px;padding:18px;transition:.2s ease;
}
.mini-card:hover{border-color:rgba(108,76,241,.35);background:#fff;transform:translateY(-2px)}
.mini-card h3{font-size:16px;font-weight:700;color:var(--t1)}
.mini-card p{margin-top:6px;font-size:14.5px;line-height:1.75}
.note-strip{
  display:flex;gap:12px;align-items:flex-start;margin-top:14px;padding:14px 16px;
  border-radius:14px;background:rgba(201,242,78,.22);border:1px solid rgba(201,242,78,.6);
  font-size:14px;line-height:1.75;color:#3E3A22;
}
.note-strip strong{color:var(--t1)}

/* ---------- order list ---------- */
.order-list{margin-top:22px;border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
.order-list li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 18px;
  border-bottom:1px solid var(--line-2);background:#fff;transition:.2s ease;
}
.order-list li:last-child{border-bottom:0}
.order-list li:hover{background:#FBFBFE}
.order-list .tag{
  flex:0 0 auto;font-size:12px;font-weight:700;color:var(--brand);background:var(--brand-soft);
  border-radius:8px;padding:4px 10px;line-height:1.6;margin-top:3px;
}
.order-list h3{font-size:15.5px;font-weight:700;color:var(--t1)}
.order-list p{margin-top:4px;font-size:14.5px;line-height:1.75}

/* ---------- metrics ---------- */
.metric-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}
@media (min-width:768px){.metric-row{grid-template-columns:repeat(4,1fr)}}
.metric{
  background:var(--ink);border:1px solid rgba(255,255,255,.10);border-radius:16px;
  padding:18px;position:relative;overflow:hidden;
}
.metric::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.45),rgba(108,76,241,0) 70%);
}
.metric strong{position:relative;z-index:1;display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em}
.metric span{position:relative;z-index:1;display:block;margin-top:2px;font-size:13px;color:#BDB9D2}

/* ---------- accordion ---------- */
.acc-group{margin-top:24px}
.acc-group-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--t1);margin-bottom:10px;
}
.acc-group-title i{width:6px;height:6px;border-radius:50%;background:var(--coral);flex:0 0 auto}
.acc-item{
  border:1px solid var(--line);border-radius:16px;background:#fff;
  margin-bottom:10px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.acc-item:hover{border-color:rgba(108,76,241,.4)}
.acc-item.is-open{border-color:rgba(108,76,241,.42);box-shadow:0 16px 32px -24px rgba(108,76,241,.9)}
.acc-btn{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 18px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;transition:color .2s ease;
}
.acc-btn:hover{color:var(--brand)}
.acc-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:16px;line-height:1;
  font-weight:700;transition:.2s ease;
}
.acc-item.is-open .acc-icon{background:var(--brand);color:#fff}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-inner{
  padding:0 18px 18px 18px;border-left:3px solid transparent;
  font-size:15px;line-height:1.8;color:var(--t2);transition:border-color .25s ease;
}
.acc-item.is-open .acc-inner{border-left-color:var(--lime)}
.acc-inner p+p{margin-top:10px}

/* ---------- form ---------- */
.form-shell{margin-top:24px}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){
  .form-grid{grid-template-columns:1fr 1fr}
  .form-grid .field-full{grid-column:1 / -1}
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--t1)}
.field .req{color:var(--coral);margin-left:2px}
.input,.select,.textarea{
  width:100%;min-height:48px;border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:12px 14px;font-size:15px;color:var(--t1);transition:border-color .18s ease,box-shadow .18s ease;
}
.textarea{min-height:132px;resize:vertical;line-height:1.75}
.select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238B87A0' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:38px}
.input::placeholder,.textarea::placeholder{color:var(--t3)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.field-error{display:none;font-size:13px;color:var(--err);line-height:1.6}
.field.has-error .input,.field.has-error .select,.field.has-error .textarea{border-color:var(--err)}
.field.has-error .field-error{display:block}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px}
.form-hint{font-size:12px;color:var(--t3);line-height:1.7;max-width:46ch}
.success-card{
  display:none;gap:14px;align-items:flex-start;margin-top:22px;
  background:#F3FBF6;border:1px solid #BEE8D1;border-radius:18px;padding:20px;
}
.success-card.is-visible{display:flex}
.success-card .ok-ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:rgba(43,182,115,.14);
  color:var(--ok);display:grid;place-items:center;
}
.success-card h3{font-size:16px;font-weight:700;color:var(--t1)}
.success-card p{margin-top:4px;font-size:14.5px;line-height:1.75;color:var(--t2)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;color:#fff;
  background:linear-gradient(155deg,var(--ink) 0%,var(--ink-2) 100%);
  padding:36px 24px;
}
@media (min-width:768px){.cta-band{padding:48px 44px}}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-160px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55),rgba(108,76,241,0) 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;gap:22px;align-items:center}
@media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,1fr) auto;gap:36px}}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15px;color:#C8C5D8;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C8C5D8;margin-top:0}
.site-footer .brand-mark{background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:none}
.site-footer p{color:#C8C5D8}
.site-footer .text-white{color:#fff}
.foot-title{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:14px}
.foot-list li a{display:inline-block;color:#C8C5D8;font-size:14px;line-height:2.1;transition:.2s ease}
.foot-list li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-list li a:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;font-size:13px;color:#8F8AA8}
.foot-bottom p{color:#8F8AA8;margin:0}

@media (max-width:767px){
  body{font-size:15.5px}
  .section{padding:48px 0}
  .page-head{padding:18px 0 34px}
  .head-stats{gap:12px 28px}
  .acc-btn{font-size:15.5px}
}