/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#111A2C;
  --brand:#22D3EE;
  --brand-deep:#0E7C93;
  --accent:#F0A93B;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#FF5C6C;
  --text:#E9F2FF;
  --text-2:#A6B7CF;
  --text-3:#6E8099;
  --body-text:#CBD8EA;
  --line:rgba(140,180,230,.14);
  --line-strong:rgba(34,211,238,.35);
  --glass:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 32px -18px rgba(0,0,0,.75);
  --shadow-hover:0 20px 44px -20px rgba(0,0,0,.9);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1180px;
  --sb:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(140,180,230,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,230,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 420px at 6% -4%,rgba(34,211,238,.10),transparent 68%),
    radial-gradient(760px 520px at 102% 104%,rgba(240,169,59,.06),transparent 68%);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(34,211,238,.28);color:#fff}

/* ============ 侧栏 ============ */
.app{position:relative;z-index:1}
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sb);
  display:flex;flex-direction:column;gap:20px;
  padding:24px 18px 20px;
  background:linear-gradient(180deg,rgba(11,18,32,.96),rgba(6,10,18,.98));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  z-index:60;
  overflow-y:auto;
  transition:transform .28s var(--ease),width .28s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 16px;border-bottom:1px solid var(--line)}
.brand__mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.5px;color:#04121A;
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -12px rgba(34,211,238,.7);
}
.brand__text{font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--r-md);
  color:var(--text-2);font-size:14.5px;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.nav-item__icon{flex:0 0 auto;width:20px;height:20px;display:flex;align-items:center;justify-content:center;color:var(--text-3);transition:color .2s var(--ease),filter .2s var(--ease)}
.nav-item__icon svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-item__label{white-space:nowrap}
.nav-item:hover{background:rgba(255,255,255,.045);color:var(--text);border-color:var(--line);transform:translateX(2px)}
.nav-item:hover .nav-item__icon{color:var(--brand)}
.nav-item.is-active{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:-18px;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);box-shadow:0 0 14px rgba(34,211,238,.85);
}
.nav-item.is-active .nav-item__icon{color:var(--brand);filter:drop-shadow(0 0 6px rgba(34,211,238,.5))}
.member-card{
  margin-top:auto;
  padding:16px;border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:10px;
}
.member-card__badge{
  align-self:flex-start;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
  color:#1A1206;background:linear-gradient(135deg,#F5BE63,#E7972A);
}
.member-card__text{font-size:13px;line-height:1.7;color:var(--text-2)}
.side-foot{padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;line-height:1.8;color:var(--text-3);display:flex;flex-direction:column;gap:4px;word-break:break-all}

/* ============ 顶栏 / 抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:52;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,18,.86);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px) saturate(120%);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.topbar.is-scrolled{background:rgba(6,10,18,.96);border-bottom-color:var(--line)}
.topbar__brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;letter-spacing:.3px}
.topbar__brand .brand__mark{width:32px;height:32px;border-radius:10px;font-size:11px}
.burger{width:42px;height:42px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);background:var(--glass)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:transform .2s var(--ease),background .2s var(--ease)}
.burger:hover span{background:var(--brand)}
.drawer-mask{position:fixed;inset:0;z-index:58;background:rgba(6,10,18,.6);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease)}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 主列 ============ */
.main-wrap{margin-left:var(--sb);position:relative;z-index:1;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.notice-bar{
  display:flex;align-items:center;gap:10px;height:40px;padding:0 32px;
  font-size:13px;color:var(--text-2);
  background:linear-gradient(90deg,rgba(34,211,238,.10),rgba(34,211,238,0) 62%);
  border-bottom:1px solid var(--line);
}
.notice-bar__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(34,211,238,.9);flex:0 0 auto}
.notice-bar__text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:linear-gradient(180deg,rgba(11,18,32,.75),rgba(6,10,18,.4))}
.section__head{max-width:720px;margin-bottom:36px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
h2.h2{
  position:relative;font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:600;letter-spacing:.2px;
  padding-left:16px;
}
h2.h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 14px rgba(34,211,238,.8);
}
.section__head--center h2.h2{padding-left:0}
.section__head--center h2.h2::before{position:static;display:block;width:38px;height:3px;margin:0 auto 16px;top:auto;bottom:auto}
.section__sub{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);padding-left:16px}
.section__head--center .section__sub{padding-left:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  color:#04121A;background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 14px 32px -10px rgba(34,211,238,.75);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 6px 16px -8px rgba(34,211,238,.55)}
.btn--ghost{
  color:var(--brand);background:var(--glass);border:1px solid var(--line-strong);
}
.btn--ghost:hover{background:rgba(34,211,238,.10);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(0)}
.btn--line{color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.02)}
.btn--line:hover{color:var(--text);border-color:var(--line-strong)}
.btn--sm{height:38px;padding:0 16px;font-size:13.5px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{background:#2A3444;color:#6E8099;box-shadow:none;cursor:not-allowed;transform:none;border-color:transparent}

/* ============ 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  padding:6px 11px;border-radius:999px;
  color:var(--brand);background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.22);
}
.badge--accent{color:#1A1206;background:linear-gradient(135deg,#F5BE63,#E7972A);border-color:transparent}
.badge--muted{color:var(--text-3);background:rgba(255,255,255,.05);border-color:var(--line)}
.tag{display:inline-flex;align-items:center;font-size:12px;color:var(--text-3);padding:4px 10px;border-radius:999px;border:1px solid var(--line)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(6,10,18,.90) 0%,rgba(6,10,18,.95) 55%,rgba(6,10,18,.88) 100%)}
.hero::after{content:"";position:absolute;left:50%;bottom:-1px;width:min(680px,80%);height:1px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,rgba(34,211,238,.75),transparent)}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:86px;padding-bottom:86px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);letter-spacing:1px;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.07);
}
h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:.4px;margin:22px 0 0}
.hero__sub{margin-top:18px;font-size:17px;font-weight:600;color:var(--brand)}
.hero__desc{margin-top:14px;font-size:15.5px;color:var(--body-text);max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;font-size:13.5px;color:var(--text-2)}
.hero__meta li{display:flex;align-items:center;gap:8px}
.hero__meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(34,211,238,.85)}
.hero-panel{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.hero-panel__media{position:relative;aspect-ratio:16/10}
.hero-panel__media img{width:100%;height:100%;object-fit:cover}
.hero-panel__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.25),rgba(6,10,18,.92))}
.hero-panel__float{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  display:flex;flex-direction:column;gap:8px;
}
.hero-panel__float h2{font-size:19px;font-weight:600;line-height:1.5}
.hero-panel__float p{font-size:13.5px;color:var(--text-2);line-height:1.7}
.hero-panel__list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.hero-panel__list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;font-size:14px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.hero-panel__list li:last-child{border-bottom:0}
.hero-panel__list b{color:var(--text);font-weight:600;font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;font-size:14px}

/* ============ 信任条 ============ */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{display:flex;flex-direction:column;gap:6px;padding-left:18px;border-left:1px solid var(--line)}
.stat__num{font-size:clamp(24px,2.4vw,30px);font-weight:700;color:var(--brand);font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;line-height:1.2}
.stat__label{font-size:13.5px;color:var(--text-2)}
.stat__note{font-size:12.5px;color:var(--text-3)}

/* ============ 权益对比表 ============ */
.table-wrap{
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);overflow:hidden;
}
table.plan-table{width:100%;border-collapse:collapse;font-size:14.5px}
.plan-table thead th{
  position:sticky;top:0;z-index:2;
  padding:18px 20px;text-align:left;font-size:14px;font-weight:600;color:var(--text-2);
  background:rgba(11,18,32,.94);border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.plan-table thead th.is-rec{color:var(--accent)}
.plan-table tbody td{padding:16px 20px;border-bottom:1px solid var(--line);color:var(--text-2)}
.plan-table tbody tr:last-child td{border-bottom:0}
.plan-table tbody tr{transition:background .2s var(--ease)}
.plan-table tbody tr:hover{background:rgba(255,255,255,.035)}
.plan-table td:first-child{color:var(--text);font-weight:500}
.plan-table .col-rec{background:rgba(240,169,59,.06);box-shadow:inset 1px 0 0 rgba(240,169,59,.28),inset -1px 0 0 rgba(240,169,59,.28)}
.mark-yes{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;color:var(--ok);background:rgba(52,211,153,.14);font-size:12px;line-height:1}
.mark-no{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;color:var(--text-3);background:rgba(255,255,255,.05);font-size:12px;line-height:1}
.mark-acc{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;color:var(--accent);background:rgba(240,169,59,.16);font-size:12px;line-height:1}
.table-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;border-top:1px solid var(--line);background:rgba(6,10,18,.4)}
.table-foot p{font-size:13.5px;color:var(--text-3)}

/* ============ 等级卡 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);padding:26px 24px 24px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.plan-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:18px 18px 0 0;background:linear-gradient(90deg,rgba(34,211,238,.9),rgba(34,211,238,0))}
.plan-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.plan-card--hero{border-color:rgba(240,169,59,.42)}
.plan-card--hero::before{background:linear-gradient(90deg,rgba(240,169,59,.95),rgba(240,169,59,0))}
.plan-card__flag{
  position:absolute;top:16px;right:16px;
  font-size:11px;font-weight:700;color:#1A1206;letter-spacing:.5px;
  padding:4px 10px;border-radius:10px;background:linear-gradient(135deg,#F5BE63,#E7972A);
}
.plan-card__name{font-size:19px;font-weight:600}
.plan-card__role{margin-top:6px;font-size:13.5px;color:var(--text-3)}
.plan-card__price{margin-top:18px;display:flex;align-items:baseline;gap:6px;color:var(--accent);font-weight:600}
.plan-card__price b{font-size:30px;font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;line-height:1.1}
.plan-card__price span{font-size:13px;color:var(--text-3)}
.plan-card__list{margin-top:20px;display:flex;flex-direction:column;gap:11px;flex:1}
.plan-card__list li{display:flex;gap:10px;font-size:14px;color:var(--body-text);line-height:1.7}
.plan-card__list li::before{content:"";flex:0 0 auto;width:16px;height:16px;margin-top:5px;border-radius:50%;background:rgba(34,211,238,.16);box-shadow:inset 0 0 0 1px rgba(34,211,238,.4)}
.plan-card__cta{margin-top:24px}

/* ============ 专属内容预览 ============ */
.preview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.preview-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.preview-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.preview-card__media{aspect-ratio:16/10;overflow:hidden}
.preview-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.preview-card:hover .preview-card__media img{transform:scale(1.04)}
.preview-card__body{padding:18px 20px 20px;position:relative}
.preview-card__body h3{font-size:16.5px;font-weight:600;line-height:1.6}
.preview-card__body p{margin-top:8px;font-size:13.5px;color:var(--text-3);line-height:1.75}
.preview-card__lock{
  position:absolute;left:0;right:0;bottom:0;top:-72px;
  display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
  padding:20px;
  background:linear-gradient(180deg,rgba(6,10,18,0),rgba(6,10,18,.94) 62%);
  transition:transform .25s var(--ease);
}
.preview-card:hover .preview-card__lock{transform:translateY(-4px)}
.lock-icon{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.lock-icon svg{width:16px;height:16px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ 资讯列表（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.post-card__cover{aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-card__cover img{transform:scale(1.05)}
.post-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card__title{
  font-size:16.5px;font-weight:600;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__desc{
  font-size:13.5px;color:var(--text-3);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  flex:1;
}
.post-card__time{font-size:12.5px;color:var(--text-3);font-family:ui-monospace,"SFMono-Regular",Menlo,monospace}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;text-align:center;
  border-radius:var(--r-lg);border:1px dashed var(--line);background:var(--glass);
}
.empty-state__icon{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);color:var(--brand);font-size:20px}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--line-strong);background:rgba(34,211,238,.05)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q__icon{
  flex:0 0 auto;width:24px;height:24px;position:relative;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--brand);
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-q__icon::before,.faq-q__icon::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%)}
.faq-q__icon::before{width:10px;height:1.6px}
.faq-q__icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-q__icon{transform:rotate(45deg);background:rgba(34,211,238,.12)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease),padding .3s var(--ease),opacity .3s var(--ease);
  opacity:0;padding:0 22px;
}
.faq-item.is-open .faq-a{max-height:420px;opacity:1;padding:0 22px 20px}
.faq-a p{font-size:15px;line-height:1.9;color:var(--body-text)}

/* ============ CTA / 表单 ============ */
.cta-block{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(34,211,238,.10),rgba(11,18,32,.92) 46%,rgba(6,10,18,.96));
  box-shadow:var(--shadow);
  padding:44px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.cta-block::after{content:"";position:absolute;left:44px;right:44px;top:0;height:1px;background:linear-gradient(90deg,rgba(34,211,238,.7),transparent)}
.cta-block h2{font-size:clamp(22px,2.4vw,28px);font-weight:600;line-height:1.35;padding-left:0}
.cta-block h2::before{display:none}
.cta-block p{margin-top:14px;font-size:15px;color:var(--body-text);max-width:520px}
.cta-points{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.cta-form{
  display:flex;flex-direction:column;gap:16px;
  padding:26px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:rgba(6,10,18,.55);
  backdrop-filter:blur(14px) saturate(120%);
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;color:var(--text-2);font-weight:500}
.field input,.field select{
  height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:hover,.field select:hover{border-color:var(--line-strong)}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.field select option{background:#0B1220;color:var(--text)}
.field__hint{font-size:12.5px;color:var(--text-3)}
.form-note{font-size:12.5px;color:var(--text-3);text-align:center}

/* ============ 页脚 ============ */
.footer{
  margin-top:auto;position:relative;
  background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(6,10,18,.98));
  border-top:1px solid var(--line);
}
.footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,238,.6),transparent)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 40px}
.footer__col h3{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.4px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__desc{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer__list{display:flex;flex-direction:column;gap:10px}
.footer__list a,.footer__list span{font-size:13.5px;color:var(--text-2);transition:color .2s var(--ease)}
.footer__list a:hover{color:var(--brand)}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer__bottom span{word-break:break-all}

/* ============ 滚动进入动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sb:76px}
  .sidebar{padding:20px 12px;align-items:stretch}
  .brand{justify-content:center;padding-left:0;padding-right:0}
  .brand__text{display:none}
  .nav-item{justify-content:center;padding:12px 0}
  .nav-item__label{display:none}
  .nav-item.is-active::before{left:-12px}
  .member-card{padding:12px 8px;align-items:center;text-align:center}
  .member-card__text{display:none}
  .member-card .btn{padding:0 10px;font-size:12.5px;height:34px}
  .side-foot{display:none}
}
@media (max-width:1023px){
  .sidebar{
    left:auto;right:0;top:0;bottom:0;width:min(84vw,320px);
    transform:translateX(102%);
    border-right:0;border-left:1px solid var(--line);
    padding:22px 18px 20px;
    box-shadow:-24px 0 48px -24px rgba(0,0,0,.9);
  }
  .sidebar.is-open{transform:translateX(0)}
  .brand{justify-content:flex-start;padding-left:6px}
  .brand__text{display:inline}
  .nav-item{justify-content:flex-start;padding:13px 12px;min-height:48px}
  .nav-item__label{display:inline}
  .nav-item.is-active::before{left:-18px}
  .member-card{padding:16px;align-items:stretch;text-align:left}
  .member-card__text{display:block}
  .member-card .btn{height:44px;font-size:14px;padding:0 18px}
  .side-foot{display:flex}
  .main-wrap{margin-left:0;padding-top:56px}
  .topbar{display:flex}
  .container{padding:0 20px}
  .notice-bar{padding:0 20px}
  .hero__inner{grid-template-columns:1fr;gap:36px;padding-top:52px;padding-bottom:56px}
  .section{padding:64px 0}
  .stats-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:32px}
  .cta-block::after{left:32px;right:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px}
}
@media (max-width:767px){
  .plan-table thead{display:none}
  .plan-table,.plan-table tbody,.plan-table tr,.plan-table td{display:block;width:100%}
  .plan-table tr{
    margin:0 0 14px;border-radius:var(--r-md);
    border:1px solid var(--line);background:rgba(255,255,255,.03);overflow:hidden;
  }
  .plan-table tbody tr:last-child{margin-bottom:0}
  .plan-table tbody td{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:12px 16px;border-bottom:1px solid var(--line);
  }
  .plan-table tbody td:last-child{border-bottom:0}
  .plan-table tbody td::before{content:attr(data-label);font-size:12.5px;color:var(--text-3)}
  .plan-table td:first-child{background:rgba(34,211,238,.07);font-weight:600}
  .plan-table td:first-child::before{display:none}
  .plan-table .col-rec{box-shadow:none;background:rgba(240,169,59,.07)}
  .plan-grid,.news-grid,.preview-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:24px}
  .cta-block{padding:24px;border-radius:18px}
  .cta-block::after{left:24px;right:24px}
  .table-foot{padding:16px 18px}
}
@media (max-width:599px){
  body{font-size:15px}
  h1{font-size:26px}
  h2.h2{font-size:22px}
  .container{padding:0 16px}
  .notice-bar{padding:0 16px;font-size:12.5px}
  .section{padding:44px 0}
  .hero__inner{padding-top:40px;padding-bottom:44px}
  .stats-strip{grid-template-columns:1fr 1fr;gap:16px;padding:24px 0}
  .stat{padding-left:12px}
  .stat__num{font-size:22px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .hero__actions{gap:10px}
  .hero__actions .btn{flex:1 1 auto}
  .faq-q{padding:15px 16px;font-size:15px}
  .faq-item.is-open .faq-a{padding:0 16px 16px}
  .footer__bottom{padding:16px 0 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
@media (max-width:1023px) and (max-width:1023px){
  .sidebar{backdrop-filter:blur(16px) saturate(120%)}
}

/* roulang page: article */
/* ============ 设计令牌 ============ */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#111A2C;
  --brand:#22D3EE;
  --brand-deep:#0E7C93;
  --accent:#F0A93B;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#FF5C6C;
  --info:#60A5FA;
  --text:#E9F2FF;
  --text-2:#A6B7CF;
  --text-3:#6E8099;
  --text-body:#CBD8EA;
  --line:rgba(140,180,230,.14);
  --line-strong:rgba(34,211,238,.35);
  --glass:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.018));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh:0 12px 32px -18px rgba(0,0,0,.75);
  --sh-hi:0 18px 40px -18px rgba(0,0,0,.85);
  --sidebar:240px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.9;color:var(--text);background:var(--bg-0);
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    radial-gradient(900px 520px at 12% 6%, rgba(34,211,238,.10), transparent 60%),
    radial-gradient(760px 460px at 92% 92%, rgba(240,169,59,.06), transparent 62%),
    linear-gradient(rgba(140,180,230,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,180,230,.04) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(34,211,238,.28)}

/* ============ 布局骨架 ============ */
.shell{position:relative;z-index:1;margin-left:var(--sidebar);transition:margin-left .28s var(--ease)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 var(--sp-5)}
.section{padding:var(--sp-9) 0}
.section--tight{padding:var(--sp-7) 0}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  align-items:center;justify-content:space-between;
  padding:0 var(--sp-4);
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.topbar.is-scrolled{background:rgba(6,10,18,.92);border-bottom-color:var(--line)}
.topbar__brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;letter-spacing:.2px}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;flex:none;border-radius:10px;
  font-size:12px;font-weight:700;letter-spacing:.5px;color:#04121A;
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 8px 18px -10px rgba(34,211,238,.7);
}
.burger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text-2);transition:.25s var(--ease)}
.burger:hover span{background:var(--brand)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:60;
  display:flex;flex-direction:column;gap:var(--sp-5);
  padding:var(--sp-5) var(--sp-4);
  background:linear-gradient(180deg, rgba(11,18,32,.92), rgba(6,10,18,.92));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  overflow-y:auto;overflow-x:hidden;
  transition:width .28s var(--ease),transform .28s var(--ease);
}
.sidebar__brand{display:flex;align-items:center;gap:10px;padding:2px 6px 0}
.sidebar__brand-text{font-weight:700;font-size:16px;white-space:nowrap;letter-spacing:.2px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav__label{font-size:12px;color:var(--text-3);letter-spacing:1px;padding:0 10px;margin-bottom:6px}
.nav__item{
  display:flex;align-items:center;gap:12px;position:relative;
  padding:11px 12px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav__item i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color .2s var(--ease),text-shadow .2s var(--ease)}
.nav__item:hover{background:rgba(255,255,255,.05);color:var(--text);transform:translateX(2px)}
.nav__item:hover i{color:var(--brand)}
.nav__item.is-active{
  background:var(--glass);color:var(--text);border:1px solid var(--line-strong);
}
.nav__item.is-active::before{
  content:"";position:absolute;left:-12px;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);box-shadow:0 0 12px rgba(34,211,238,.8);
}
.nav__item.is-active i{color:var(--brand);text-shadow:0 0 10px rgba(34,211,238,.6)}
.sidebar__card{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  padding:var(--sp-4);display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh);
}
.sidebar__card h3{font-size:14px;font-weight:600;letter-spacing:.3px}
.sidebar__card p{font-size:13px;line-height:1.7;color:var(--text-3)}
.sidebar__foot{margin-top:auto;padding:var(--sp-4) 6px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;flex-direction:column;gap:6px;white-space:nowrap}
.sidebar__foot a{color:var(--text-2)}
.sidebar__foot a:hover{color:var(--brand)}
.mask{
  position:fixed;inset:0;background:rgba(6,10,18,.6);opacity:0;visibility:hidden;z-index:55;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.mask.is-open{opacity:1;visibility:visible}

/* ============ 通用组件 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1.8;
  background:rgba(34,211,238,.12);color:#8CE9F8;border:1px solid rgba(34,211,238,.24);
}
.badge--accent{background:rgba(240,169,59,.14);color:var(--accent);border-color:rgba(240,169,59,.32)}
.badge--soft{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--line)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  color:#04121A;background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 14px 30px -10px rgba(34,211,238,.75)}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,211,238,.45),0 6px 16px -10px rgba(34,211,238,.6)}
.btn--ghost{
  color:var(--brand);border:1px solid var(--line-strong);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn--ghost:hover{background:rgba(34,211,238,.10);transform:translateY(-1px)}
.btn--text{color:var(--text-2);padding:0 4px;height:auto}
.btn--text:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn--block{width:100%}
.card{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-hi), inset 0 1px 0 rgba(255,255,255,.08)}
.section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:var(--sp-6)}
.section-head h2{
  position:relative;padding-left:14px;font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:600;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(34,211,238,.7);
}
.section-head p{color:var(--text-2);font-size:15px;max-width:760px}
.divider{height:1px;background:var(--line);margin:var(--sp-6) 0}

/* ============ 面包屑 ============ */
.breadcrumb{padding-top:var(--sp-6);font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2)}

/* ============ 文章头 ============ */
.article-head{padding:var(--sp-5) 0 var(--sp-6);border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.2px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:var(--sp-4);font-size:13px;color:var(--text-3)}
.article-meta__item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.article-meta__item i{color:var(--brand);opacity:.85}

/* ============ 正文阅读区 ============ */
.article-wrap{max-width:760px;margin:0 auto;padding:var(--sp-7) 0}
.article-panel{
  border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.012));
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh), inset 0 1px 0 rgba(255,255,255,.06);
  padding:var(--sp-7);
}
.article-content{font-size:16px;line-height:1.9;color:var(--text-body);overflow-x:auto}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1em}
.article-content h2{
  position:relative;font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:600;color:var(--text);
  margin:1.8em 0 .8em;padding-left:14px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(34,211,238,.7);
}
.article-content h3{font-size:19px;font-weight:600;color:var(--text);margin:1.6em 0 .6em}
.article-content h4{font-size:17px;font-weight:600;color:var(--text);margin:1.3em 0 .5em}
.article-content a{color:var(--brand);border-bottom:1px solid rgba(34,211,238,.35)}
.article-content a:hover{border-bottom-color:var(--brand)}
.article-content strong{color:var(--text);font-weight:600}
.article-content ul,.article-content ol{margin:0 0 1em;padding-left:1.3em}
.article-content ul li{list-style:disc}
.article-content ol li{list-style:decimal}
.article-content li{margin:.4em 0;line-height:1.85}
.article-content blockquote{
  margin:1.4em 0;padding:14px 18px;border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;background:rgba(240,169,59,.06);color:var(--text-2);
}
.article-content pre{
  background:#050A13;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px;overflow-x:auto;margin:1.4em 0;
}
.article-content code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-content :not(pre) > code{background:rgba(34,211,238,.10);color:#8CE9F8;padding:2px 6px;border-radius:6px}
.article-content img{border-radius:12px;margin:1.4em auto;background:var(--bg-2)}
.article-content figure{margin:1.4em 0}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-content table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-content th{background:rgba(255,255,255,.045);color:var(--text);font-weight:600}
.article-content tbody tr:hover td{background:rgba(34,211,238,.05)}
.article-content hr{border:0;height:1px;background:var(--line);margin:2em 0}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:var(--sp-7) var(--sp-5)}
.empty-state i{font-size:34px;color:var(--brand);opacity:.85}
.empty-state h2{font-size:22px;font-weight:600;color:var(--text)}
.empty-state p{color:var(--text-2);font-size:15px;max-width:420px}

/* ============ 标签与翻页 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--sp-6)}
.tag-row a{
  font-size:13px;padding:6px 14px;border-radius:999px;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:.2s var(--ease);
}
.tag-row a:hover{color:var(--brand);border-color:var(--line-strong);background:rgba(34,211,238,.08)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4);margin-top:var(--sp-7)}
.pager a{padding:var(--sp-4) var(--sp-5);display:flex;flex-direction:column;gap:6px}
.pager span{font-size:12px;color:var(--text-3)}
.pager strong{font-size:15px;font-weight:600;color:var(--text);line-height:1.6}
.pager a:hover strong{color:var(--brand)}
.pager .next{text-align:right;align-items:flex-end}

/* ============ 相关推荐 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-5)}
.post-card{display:flex;flex-direction:column;overflow:hidden}
.post-card__cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-card__cover img{transform:scale(1.05)}
.post-card__cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.55))}
.post-card__body{padding:var(--sp-4) var(--sp-5) var(--sp-5);display:flex;flex-direction:column;gap:10px}
.post-card__body h3{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__body p{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ CTA 条 ============ */
.cta-strip{
  border-radius:var(--r-lg);border:1px solid var(--line-strong);
  background:linear-gradient(120deg, rgba(34,211,238,.11), rgba(255,255,255,.02) 55%, rgba(240,169,59,.08));
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh);
  padding:var(--sp-6) var(--sp-6);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.2vw,26px);font-weight:600;line-height:1.4}
.cta-strip p{font-size:14px;color:var(--text-2);margin-top:8px}
.cta-strip__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.footer{
  margin-top:var(--sp-9);padding-top:var(--sp-7);
  border-top:1px solid transparent;
  position:relative;
  background:linear-gradient(180deg, rgba(11,18,32,.6), rgba(6,10,18,.95));
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(34,211,238,.55), transparent);
}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-6);padding-bottom:var(--sp-7)}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.brand__text{font-weight:700;font-size:16px}
.footer__desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer__col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer__list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer__list a{color:var(--text-2);transition:color .2s var(--ease)}
.footer__list a:hover{color:var(--brand)}
.footer__list span{color:var(--text-3);font-size:13px}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);flex-wrap:wrap;
  padding:var(--sp-4) 0 var(--sp-6);border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .28s var(--ease),transform .28s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ============ 响应式 ============ */
@media (min-width:1600px){
  .container{max-width:1280px}
}
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar:76px}
  .sidebar{padding:var(--sp-5) 10px;align-items:center}
  .sidebar__brand-text,.nav__text,.sidebar__card,.sidebar__foot{display:none}
  .nav{width:100%}
  .nav__item{justify-content:center;padding:12px 0}
  .nav__item.is-active::before{left:-10px}
  .sidebar:hover{width:240px;padding:var(--sp-5) var(--sp-4);align-items:stretch}
  .sidebar:hover .sidebar__brand-text{display:inline}
  .sidebar:hover .nav__text{display:inline}
  .sidebar:hover .sidebar__card{display:flex}
  .sidebar:hover .sidebar__foot{display:flex}
  .sidebar:hover .nav__item{justify-content:flex-start;padding:11px 12px}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .shell{margin-left:0;padding-top:56px}
  .sidebar{
    width:288px;right:0;left:auto;transform:translateX(100%);
    border-right:0;border-left:1px solid var(--line);
    padding:var(--sp-5);
  }
  .sidebar.is-open{transform:none}
  .sidebar__item-hide{display:none}
  .nav__item{min-height:48px}
  .section{padding:var(--sp-7) 0}
  .article-wrap{padding:var(--sp-6) 0}
  .article-panel{padding:var(--sp-6)}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:var(--sp-5)}
}
@media (max-width:767px){
  .container{padding:0 var(--sp-4)}
  .section{padding:var(--sp-6) 0}
  .article-head h1{font-size:clamp(26px,7vw,34px)}
  .article-panel{padding:var(--sp-5)}
  .grid-3{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left;align-items:flex-start}
  .cta-strip{padding:var(--sp-5);flex-direction:column;align-items:flex-start}
  .cta-strip__actions{width:100%}
  .cta-strip__actions .btn{flex:1}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .breadcrumb .current{max-width:70vw}
}
@media (max-width:520px){
  body{font-size:15px}
  .article-content{font-size:15px}
  .badge{font-size:11px}
  .btn{height:44px;font-size:14px}
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .card,.sidebar,.sidebar__card,.article-panel,.btn--ghost,.cta-strip,.topbar{
    background-color:var(--bg-2);backdrop-filter:none;
  }
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#111A2C;
  --brand:#22D3EE;
  --brand-deep:#0E7C93;
  --accent:#F0A93B;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#FF5C6C;
  --text:#E9F2FF;
  --text-2:#A6B7CF;
  --text-3:#6E8099;
  --body:#CBD8EA;
  --line:rgba(140,180,230,.14);
  --line-strong:rgba(34,211,238,.35);
  --glass:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 32px -18px rgba(0,0,0,.75);
  --shadow-hi:0 20px 44px -20px rgba(0,0,0,.85);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:88px;
  --sidebar-w:240px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(620px 420px at 6% 2%,rgba(34,211,238,.10),transparent 70%),
    radial-gradient(540px 380px at 94% 96%,rgba(240,169,59,.06),transparent 70%),
    linear-gradient(rgba(140,180,230,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,180,230,.04) 1px,transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:rgba(34,211,238,.28);color:#fff;}

/* ============ 顶栏（移动端） ============ */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,18,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  z-index:60;
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.topbar.is-scrolled{background:rgba(6,10,18,.96);box-shadow:0 10px 26px -18px rgba(0,0,0,.9);}
.topbar__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--text);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04121A;font-weight:800;font-size:13px;letter-spacing:.04em;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 22px -12px rgba(34,211,238,.7);
  flex:0 0 auto;
}
.burger{
  width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:var(--glass);display:flex;flex-direction:column;gap:5px;
  align-items:center;justify-content:center;cursor:pointer;transition:.2s var(--ease);
}
.burger span{display:block;width:18px;height:2px;background:var(--text-2);border-radius:2px;transition:.24s var(--ease);}
.burger:hover{border-color:var(--line-strong);}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--brand);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--brand);}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  padding:22px 16px 18px;
  display:flex;
  flex-direction:column;
  gap:20px;
  background:linear-gradient(180deg,rgba(11,18,32,.97),rgba(6,10,18,.99));
  border-right:1px solid var(--line);
  z-index:55;
  overflow-y:auto;
}
.sidebar__brand{display:flex;align-items:center;gap:10px;padding:4px 6px 14px;border-bottom:1px solid var(--line);}
.sidebar__brandText{font-weight:700;font-size:16px;letter-spacing:.01em;}
.snav{display:flex;flex-direction:column;gap:6px;}
.snav__label{font-size:12px;color:var(--text-3);letter-spacing:.14em;padding:2px 10px 6px;}
.snav__item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:14.5px;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.snav__item:hover{background:rgba(255,255,255,.045);color:var(--text);transform:translateX(2px);}
.snav__item.is-active{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
  font-weight:600;
  box-shadow:var(--shadow);
}
.snav__item.is-active::before{
  content:"";position:absolute;left:-16px;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);box-shadow:0 0 14px rgba(34,211,238,.85);
}
.snav__dot{width:7px;height:7px;border-radius:50%;background:rgba(140,180,230,.35);flex:0 0 auto;}
.snav__item.is-active .snav__dot{background:var(--brand);box-shadow:0 0 10px rgba(34,211,238,.9);}

.memberbox{
  margin-top:auto;
  padding:16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow);
}
.memberbox__badge{
  display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
  color:var(--accent);background:rgba(240,169,59,.12);border:1px solid rgba(240,169,59,.32);
}
.memberbox__title{margin-top:10px;font-size:15px;font-weight:600;}
.memberbox__desc{margin-top:4px;font-size:12.5px;color:var(--text-3);line-height:1.7;}
.memberbox .btn{margin-top:12px;width:100%;}
.sidebar__foot{border-top:1px solid var(--line);padding-top:14px;font-size:12.5px;color:var(--text-3);line-height:1.8;}
.sidebar__foot strong{color:var(--text-2);font-weight:600;display:block;margin-bottom:4px;}

.overlay{
  position:fixed;inset:0;background:rgba(6,10,18,.6);
  opacity:0;visibility:hidden;transition:.24s var(--ease);z-index:50;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 主体 ============ */
.main{padding-left:var(--sidebar-w);position:relative;z-index:1;}
.page{max-width:1180px;margin:0 auto;padding:32px 32px 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-3);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--brand);}
.crumbs span{color:var(--text-2);}

/* 板块通用 */
.section{margin-top:var(--sp-7);}
.section--tight{margin-top:var(--sp-6);}
.section__head{max-width:760px;margin-bottom:28px;}
.section__head h2{
  position:relative;
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  font-weight:600;
  padding-left:14px;
}
.section__head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 14px rgba(34,211,238,.8);
}
.section__head p{margin-top:12px;color:var(--text-2);font-size:15px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  overflow:hidden;
  background:var(--bg-2);
  box-shadow:var(--shadow);
}
.hero__bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.85;
}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,10,18,.94) 0%,rgba(6,10,18,.86) 46%,rgba(6,10,18,.72) 100%);}
.hero__inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;padding:52px 44px;align-items:center;}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:500;color:var(--brand);
  padding:5px 12px;border-radius:999px;
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.30);
}
.hero h1{margin-top:18px;font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero__sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:34em;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero__meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);}
.hero__meta div{min-width:96px;}
.hero__meta b{display:block;font-size:22px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.hero__meta small{font-size:12.5px;color:var(--text-3);}
.hero__deco{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  opacity:.72;
  filter:saturate(.9);
  box-shadow:var(--shadow);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:12px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(34,211,238,.55),0 14px 32px -10px rgba(34,211,238,.75);}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 6px 16px -10px rgba(34,211,238,.6);}
.btn--ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--brand);
}
.btn--ghost:hover{background:rgba(34,211,238,.10);transform:translateY(-1px);}
.btn--plain{background:none;color:var(--text-2);padding:12px 6px;}
.btn--plain:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.btn[disabled]{background:#2A3444;color:var(--text-3);box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 卡片族 ============ */
.card{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  padding:26px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hi);}
.card__title{font-size:19px;font-weight:600;line-height:1.5;}
.card__desc{margin-top:10px;color:var(--text-2);font-size:14.5px;}
.card__kicker{font-size:12.5px;letter-spacing:.1em;color:var(--text-3);}

.badge{
  display:inline-block;font-size:12px;font-weight:500;line-height:1.6;
  padding:3px 11px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text-2);
}
.badge--brand{color:var(--brand);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.30);}
.badge--accent{color:var(--accent);background:rgba(240,169,59,.12);border-color:rgba(240,169,59,.32);}

/* 三列摘要卡（不等高） */
.summary{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:24px;align-items:start;}
.summary .card:nth-child(2){margin-top:26px;}
.summary .card:nth-child(3){margin-top:8px;}
.checklist{margin-top:16px;display:flex;flex-direction:column;gap:11px;}
.checklist li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.75;}
.checklist li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:6px;border-radius:5px;
  background:rgba(34,211,238,.14);
  border:1px solid rgba(34,211,238,.45);
  box-shadow:inset 0 0 0 3px rgba(6,10,18,.9);
}
.stats{display:flex;flex-direction:column;gap:18px;margin-top:18px;}
.stats div{display:flex;align-items:baseline;gap:12px;padding-bottom:14px;border-bottom:1px dashed var(--line);}
.stats div:last-child{border-bottom:0;padding-bottom:0;}
.stats b{font-size:28px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stats small{font-size:13px;color:var(--text-3);}
.compare-mini{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.compare-mini__row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.compare-mini__row i{
  flex:0 0 auto;width:8px;height:8px;border-radius:50%;margin-top:9px;
}
.dot-ok{background:var(--ok);box-shadow:0 0 10px rgba(52,211,153,.8);}
.dot-bad{background:var(--err);box-shadow:0 0 10px rgba(255,92,108,.8);}

/* 内容网格 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.content-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  overflow:hidden;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.content-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hi);}
.content-card__media{position:relative;aspect-ratio:16/10;background:var(--bg-2);overflow:hidden;}
.content-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.content-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 40%,rgba(6,10,18,.72) 100%);
}
.content-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.content-card__body h3{font-size:17px;font-weight:600;line-height:1.5;}
.content-card__body p{font-size:14px;color:var(--text-2);}
.content-card__foot{margin-top:auto;padding-top:12px;font-size:13px;color:var(--brand);}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step;}
.step{
  position:relative;
  padding:24px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.step::after{
  content:"";position:absolute;top:38px;right:-18px;width:18px;height:1px;
  background:linear-gradient(90deg,rgba(34,211,238,.55),rgba(34,211,238,0));
}
.step:last-child::after{display:none;}
.step__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;font-size:13px;font-weight:700;
  color:var(--brand);background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.32);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:14px;font-size:16px;font-weight:600;}
.step p{margin-top:8px;font-size:13.5px;color:var(--text-2);}

/* 对比表 */
.table-wrap{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  overflow:hidden;
}
table{width:100%;border-collapse:collapse;min-width:520px;}
caption{text-align:left;padding:22px 26px 0;font-size:13px;color:var(--text-3);}
thead th{
  text-align:left;font-size:13px;font-weight:600;color:var(--text-2);
  padding:18px 24px;background:rgba(255,255,255,.045);
  border-bottom:1px solid var(--line);
}
thead th:first-child{color:var(--text-3);font-weight:500;}
thead th.col-pro{color:var(--accent);}
tbody th{
  text-align:left;font-weight:500;font-size:14.5px;color:var(--text-2);
  padding:16px 24px;border-bottom:1px solid var(--line);
}
tbody td{
  padding:16px 24px;font-size:14.5px;color:var(--body);
  border-bottom:1px solid var(--line);
}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0;}
tbody tr{transition:background .2s var(--ease);}
tbody tr:hover{background:rgba(255,255,255,.035);}
td.col-pro{background:rgba(240,169,59,.06);}
.mark{display:inline-flex;align-items:center;gap:8px;}
.mark::before{
  content:"";width:9px;height:9px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(34,211,238,.85);flex:0 0 auto;
}
.mark--off{color:var(--text-3);}
.mark--off::before{background:rgba(140,180,230,.32);box-shadow:none;}
.mark--pro::before{background:var(--accent);box-shadow:0 0 10px rgba(240,169,59,.85);}

/* CTA 条 */
.cta{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(17,26,44,.9));
  box-shadow:var(--shadow);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta__title{font-size:clamp(20px,2.2vw,26px);font-weight:600;line-height:1.4;}
.cta__desc{margin-top:10px;color:var(--text-2);font-size:15px;max-width:46em;}
.cta__actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* 页脚 */
.footer{
  margin-top:var(--sp-7);
  border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(6,10,18,1));
  position:relative;
  z-index:1;
}
.footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(34,211,238,0),rgba(34,211,238,.7),rgba(34,211,238,0));
}
.container{max-width:1180px;margin:0 auto;padding:0 32px;}
.footer__grid{
  display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;
  padding:56px 0 40px;
}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.brand__text{font-weight:700;font-size:16px;}
.footer__desc{font-size:13.5px;color:var(--text-3);line-height:1.9;}
.footer__col h3{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer__list{display:flex;flex-direction:column;gap:11px;}
.footer__list a,.footer__list span{font-size:13.5px;color:var(--text-3);transition:color .2s var(--ease);}
.footer__list a:hover{color:var(--brand);}
.footer__bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:20px 0 32px;
  font-size:13px;color:var(--text-3);
}

/* 滚动动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .2s var(--ease),transform .2s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:20px 10px;align-items:center;}
  .sidebar__brandText,.snav__label,.snav__item span:not(.snav__dot),.memberbox,.sidebar__foot{display:none;}
  .sidebar__brand{justify-content:center;padding-bottom:14px;width:100%;}
  .snav{width:100%;}
  .snav__item{justify-content:center;padding:13px 8px;}
  .snav__item.is-active::before{left:-10px;}
}
@media (max-width:1023px){
  .topbar{display:flex;}
  .main{padding-left:0;}
  .page{padding:20px 20px 0;margin-top:56px;}
  .sidebar{
    left:auto;right:0;top:0;bottom:0;
    width:282px;
    transform:translateX(100%);
    transition:transform .28s var(--ease);
    border-right:0;border-left:1px solid var(--line);
    box-shadow:-24px 0 48px -24px rgba(0,0,0,.9);
  }
  .sidebar.is-open{transform:translateX(0);}
  .snav__item{min-height:48px;}
  .hero__inner{grid-template-columns:1fr;padding:36px 24px;gap:26px;}
  .hero__deco{max-width:340px;order:-1;}
  .summary{grid-template-columns:1fr 1fr;}
  .summary .card:nth-child(n){margin-top:0;}
  .summary .card:nth-child(3){grid-column:1 / -1;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .cta{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .footer__grid{grid-template-columns:1fr 1fr;padding:44px 0 30px;}
  .section{margin-top:var(--sp-6);}
}
@media (max-width:767px){
  .grid-3{grid-template-columns:1fr;}
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
}
@media (max-width:599px){
  body{font-size:15px;}
  .page{padding:16px 16px 0;margin-top:56px;}
  .container{padding:0 16px;}
  .hero__inner{padding:28px 20px;}
  .hero h1{font-size:clamp(24px,7vw,30px);}
  .hero__sub{font-size:15px;}
  .hero__meta{gap:18px;}
  .hero__meta b{font-size:19px;}
  .summary,.grid-4,.steps{grid-template-columns:1fr;}
  .summary .card:nth-child(3){grid-column:auto;}
  .card,.content-card__body{padding:20px;}
  .cta{padding:26px 20px;}
  .footer__grid{grid-template-columns:1fr;gap:26px;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .page{padding-bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#111A2C;
  --brand:#22D3EE;
  --brand-deep:#0E7C93;
  --accent:#F0A93B;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#FF5C6C;
  --info:#60A5FA;
  --text:#E9F2FF;
  --text-2:#A6B7CF;
  --text-3:#6E8099;
  --line:rgba(140,180,230,.14);
  --strong:rgba(34,211,238,.35);
  --glass:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 32px -18px rgba(0,0,0,.75);
  --shadow-hover:0 24px 46px -22px rgba(0,0,0,.9);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-0);
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,180,230,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,230,.04) 1px,transparent 1px);
  background-size:52px 52px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 440px at 6% 4%,rgba(34,211,238,.10),transparent 70%),
    radial-gradient(560px 420px at 94% 90%,rgba(240,169,59,.06),transparent 70%);
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(34,211,238,.28);}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}

/* ============ 顶部移动条 ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,18,.8);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.topbar.is-scrolled{background:rgba(6,10,18,.95);border-bottom-color:var(--line);}
.topbar__brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;letter-spacing:.01em;}
.brand__mark{
  display:inline-grid;place-items:center;
  width:34px;height:34px;flex:none;
  border-radius:11px;
  background:linear-gradient(135deg,#22D3EE,#0E7C93);
  color:#04121A;
  font-size:14px;font-weight:700;
  box-shadow:0 0 18px -4px rgba(34,211,238,.65);
}
.burger{
  width:42px;height:42px;display:grid;place-content:center;gap:5px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);border-radius:12px;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:var(--strong);background:rgba(34,211,238,.08);}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .2s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:0;right:0;z-index:60;
  width:288px;max-width:86vw;height:100%;
  display:flex;flex-direction:column;gap:22px;
  padding:22px 20px 28px;
  overflow-y:auto;
  background:linear-gradient(180deg,rgba(11,18,32,.98),rgba(6,10,18,.98));
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
}
.sidebar.is-open{transform:translateX(0);}
.overlay{
  position:fixed;inset:0;z-index:55;
  background:rgba(6,10,18,.72);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}
.side-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;padding:4px 2px 0;}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.side-nav__item{
  position:relative;
  display:flex;align-items:center;
  min-height:46px;padding:0 14px 0 16px;
  border-radius:12px;
  font-size:15px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav__item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--brand);
  transition:height .22s var(--ease);
}
.side-nav__item:hover{background:rgba(255,255,255,.05);color:var(--text);}
.side-nav__item.is-active{
  background:rgba(34,211,238,.09);
  color:var(--brand);
  border:1px solid rgba(34,211,238,.24);
}
.side-nav__item.is-active::before{height:20px;box-shadow:0 0 10px rgba(34,211,238,.75);}
.side-card{
  margin-top:auto;
  padding:18px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.side-card p{font-size:13px;color:var(--text-3);line-height:1.8;margin:10px 0 14px;}
.side-foot{padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);line-height:1.9;}
.side-foot p{margin:0;}

/* ============ 主区域 ============ */
.main{position:relative;z-index:1;padding-top:56px;}
.section{padding:60px 0;}
.section--tight{padding:34px 0;}

/* ============ 面包屑与页头 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:26px;}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span[aria-hidden]{color:var(--text-3);opacity:.65;}

.page-head{padding:18px 0 6px;max-width:860px;}
.page-head h1{
  margin:16px 0 12px;
  font-size:clamp(28px,3.7vw,42px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
}
.page-head .lede{font-size:16px;color:var(--text-2);}
.head-facts{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.head-facts li{position:relative;padding-left:14px;}
.head-facts li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 8px rgba(34,211,238,.8);
}

/* ============ 通用组件 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-2);
}
.badge--brand{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.3);color:#9FE9F7;}
.badge--accent{background:rgba(240,169,59,.14);border-color:rgba(240,169,59,.34);color:#F5C577;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 14px 32px -10px rgba(34,211,238,.78);}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 6px 14px -8px rgba(34,211,238,.6);}
.btn--ghost{background:rgba(255,255,255,.03);border-color:var(--strong);color:var(--brand);}
.btn--ghost:hover{background:rgba(34,211,238,.1);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);background:rgba(34,211,238,.16);}
.btn--block{width:100%;}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}

.h2{
  position:relative;
  padding-left:14px;
  font-size:clamp(21px,2.4vw,29px);
  line-height:1.32;
  font-weight:600;
}
.h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(34,211,238,.7);
}
.section__head{max-width:760px;margin-bottom:28px;}
.section__sub{margin-top:10px;font-size:14px;color:var(--text-3);}

/* ============ 目录 + 长文双栏 ============ */
.doc-layout{display:grid;grid-template-columns:232px minmax(0,1fr);gap:44px;align-items:start;}
.toc{
  position:sticky;top:28px;
  padding:18px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.toc__title{font-size:12px;letter-spacing:.16em;color:var(--text-3);margin-bottom:12px;}
.toc__nav{display:flex;flex-direction:column;gap:4px;}
.toc__link{
  position:relative;
  padding:9px 12px 9px 14px;
  border-radius:10px;
  font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc__link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--brand);
  transition:height .22s var(--ease);
}
.toc__link:hover{background:rgba(255,255,255,.045);color:var(--text);}
.toc__link.is-active{background:rgba(34,211,238,.09);color:var(--brand);}
.toc__link.is-active::before{height:18px;box-shadow:0 0 10px rgba(34,211,238,.75);}
.toc .btn{margin-top:16px;}

.doc-body{max-width:820px;}
.doc-section + .doc-section{margin-top:42px;padding-top:34px;border-top:1px dashed var(--line);}
.doc-section p{margin-top:14px;color:#CBD8EA;font-size:16px;line-height:1.95;}
.doc-section p strong{color:var(--text);font-weight:600;}
.note{
  margin-top:20px;
  padding:14px 18px;
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:linear-gradient(90deg,rgba(240,169,59,.10),rgba(255,255,255,.015));
  font-size:15px;color:var(--text-2);line-height:1.9;
}
.doc-figure{margin:24px 0 0;}
.doc-figure img{width:100%;border-radius:var(--r-sm);border:1px solid var(--line);}
.doc-figure figcaption{margin-top:10px;font-size:13px;color:var(--text-3);}

/* ============ 流程时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.timeline__item{
  position:relative;
  padding:20px 18px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.timeline__item:hover{transform:translateY(-4px);border-color:var(--strong);box-shadow:var(--shadow-hover);}
.timeline__step{font-size:13px;color:var(--brand);letter-spacing:.14em;font-variant-numeric:tabular-nums;}
.timeline__item h3{margin:10px 0 8px;font-size:16px;font-weight:600;}
.timeline__item p{font-size:14px;color:var(--text-3);line-height:1.85;}

/* ============ 数据条 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:26px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat__k{font-size:13px;color:var(--text-3);}
.stat__v{margin-top:6px;font-size:18px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;}

/* ============ 专属内容预览 ============ */
.preview-grid{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:repeat(2,minmax(170px,1fr));gap:20px;}
.preview-card{
  position:relative;
  display:flex;align-items:flex-end;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.preview-card--wide{grid-row:span 2;}
.preview-card:hover{transform:translateY(-4px);border-color:var(--strong);box-shadow:var(--shadow-hover);}
.preview-card__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.6);transition:transform .3s var(--ease);}
.preview-card:hover .preview-card__bg{transform:scale(1.03);}
.preview-card__body{
  position:relative;width:100%;
  padding:22px;
  background:linear-gradient(180deg,rgba(6,10,18,0) 0%,rgba(6,10,18,.9) 58%);
}
.preview-card__body h3{margin:12px 0 8px;font-size:17px;font-weight:600;}
.preview-card__body p{font-size:13.5px;color:var(--text-2);line-height:1.8;}
.lock{
  position:absolute;top:16px;right:16px;
  display:grid;place-items:center;
  width:34px;height:34px;border-radius:11px;
  background:rgba(6,10,18,.7);
  border:1px solid var(--strong);
  color:var(--brand);
}
.preview-card .btn{margin-top:14px;}

/* ============ 相关分类跳转卡 ============ */
.jump-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.jump-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.jump-card:hover{transform:translateY(-4px);border-color:var(--strong);box-shadow:var(--shadow-hover);}
.jump-card h3{font-size:16px;font-weight:600;}
.jump-card p{font-size:13.5px;color:var(--text-3);line-height:1.8;}
.jump-card__more{margin-top:auto;font-size:13px;color:var(--brand);}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:32px 34px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(34,211,238,.13),rgba(240,169,59,.07)),var(--bg-1);
  border:1px solid var(--strong);
  box-shadow:var(--shadow);
}
.cta-band__title{font-size:clamp(19px,2vw,24px);font-weight:600;line-height:1.35;}
.cta-band__text{margin-top:10px;font-size:14px;color:var(--text-2);max-width:560px;line-height:1.85;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.footer{
  position:relative;
  margin-top:24px;
  padding:56px 0 28px;
  background:linear-gradient(180deg,rgba(11,18,32,.7),rgba(6,10,18,.96));
  border-top:1px solid var(--line);
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.65),transparent);
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;margin-bottom:14px;}
.footer__desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px;}
.footer__col h3{font-size:15px;font-weight:600;margin-bottom:14px;}
.footer__col h3::before{content:none;}
.footer__list li{margin-bottom:10px;font-size:14px;color:var(--text-3);line-height:1.8;}
.footer__list a{color:var(--text-2);transition:color .2s var(--ease);}
.footer__list a:hover{color:var(--brand);}
.footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:36px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.brand__text{letter-spacing:.01em;}

/* ============ 进场动画 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .toc,.jump-card,.side-card,.preview-card__body,.timeline__item{background:var(--bg-2);}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .toc__nav{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc__link{padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:13.5px;}
  .toc__link::before{content:none;}
  .toc__link.is-active{border-color:rgba(34,211,238,.35);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (min-width:1024px){
  .topbar{display:none;}
  .overlay{display:none;}
  .sidebar{
    left:0;right:auto;
    width:var(--sidebar-w);max-width:none;
    transform:none;
    border-left:0;border-right:1px solid var(--line);
    background:linear-gradient(180deg,rgba(11,18,32,.94),rgba(6,10,18,.94));
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:8px 0 30px -24px rgba(0,0,0,.9);
  }
  .main{margin-left:var(--sidebar-w);padding-top:0;}
  .section{padding:70px 0;}
  .breadcrumb{padding-top:36px;}
}
@media (max-width:900px){
  .timeline{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);gap:20px;}
  .preview-grid{grid-template-columns:1fr;grid-template-rows:none;}
  .preview-card--wide{grid-row:auto;}
  .jump-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px 22px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 160px;}
}
@media (max-width:600px){
  .container{padding:0 18px;}
  .section{padding:40px 0;}
  .page-head h1{font-size:26px;}
  .timeline{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;gap:16px;}
  .footer__grid{grid-template-columns:1fr;gap:24px;}
  .footer{padding-bottom:36px;}
  .footer__bottom{flex-direction:column;gap:6px;}
  .btn{height:44px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#111A2C;
  --brand:#22D3EE;
  --brand-deep:#0E7C93;
  --accent:#F0A93B;
  --success:#34D399;
  --warning:#FBBF24;
  --danger:#FF5C6C;
  --info:#60A5FA;
  --text-1:#E9F2FF;
  --text-2:#A6B7CF;
  --text-3:#6E8099;
  --text-body:#CBD8EA;
  --line:rgba(140,180,230,.14);
  --line-strong:rgba(34,211,238,.35);
  --glass:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow:0 12px 32px -18px rgba(0,0,0,.75);
  --shadow-hover:0 22px 44px -22px rgba(0,0,0,.88);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 520px at 4% -6%,rgba(34,211,238,.10),transparent 62%),
    radial-gradient(680px 460px at 96% 104%,rgba(240,169,59,.06),transparent 60%),
    linear-gradient(rgba(140,180,230,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,180,230,.04) 1px,transparent 1px);
  background-size:auto,auto,42px 42px,42px 42px;
  background-attachment:fixed;
  color:var(--text-body);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
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(--text-1);margin:0;font-weight:600;line-height:1.3;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* 布局骨架 */
.layout{display:flex;align-items:flex-start;min-height:100vh;}
.content{flex:1;min-width:0;display:flex;flex-direction:column;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 32px;}
@media (min-width:1600px){.container{max-width:1280px;}}

/* 顶部信息条 */
.notice{
  border-bottom:1px solid var(--line);
  background:rgba(17,26,44,.55);
  backdrop-filter:blur(10px);
  font-size:13px;
  color:var(--text-2);
}
.notice__in{display:flex;align-items:center;gap:12px;height:38px;overflow:hidden;white-space:nowrap;}
.notice__tag{
  flex:0 0 auto;font-size:12px;font-weight:500;color:#060A12;
  background:linear-gradient(135deg,#F0A93B,#d9891f);
  border-radius:999px;padding:2px 10px;
}
.notice__txt{overflow:hidden;text-overflow:ellipsis;}
.notice a{color:var(--brand);}

/* 侧栏 */
.sidebar{
  position:sticky;top:0;
  flex:0 0 var(--sidebar-w);
  width:var(--sidebar-w);
  height:100vh;
  display:flex;flex-direction:column;
  gap:var(--sp-4);
  padding:24px 16px 20px;
  background:linear-gradient(180deg,rgba(17,26,44,.86),rgba(11,18,32,.78));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  z-index:60;
  overflow-y:auto;
}
.sidebar__brand{display:flex;align-items:center;gap:10px;padding:4px 8px 16px;border-bottom:1px solid var(--line);}
.brand__mark{
  flex:0 0 auto;display:grid;place-items:center;
  width:36px;height:36px;border-radius:11px;
  font-size:13px;font-weight:700;letter-spacing:.5px;color:#04121A;
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.brand__text{font-size:16px;font-weight:600;color:var(--text-1);white-space:nowrap;}
.nav{display:flex;flex-direction:column;gap:6px;}
.nav__item{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:var(--radius-sm);
  border:1px solid transparent;
  color:var(--text-2);font-size:14.5px;
  transition:background .2s cubic-bezier(.2,.7,.3,1),color .2s,border-color .2s,transform .2s;
}
.nav__item svg{flex:0 0 18px;width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav__item:hover{background:rgba(34,211,238,.08);color:var(--text-1);border-color:var(--line);}
.nav__item.is-active{
  background:var(--glass);color:var(--text-1);border-color:var(--line-strong);
}
.nav__item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 12px rgba(34,211,238,.75);
}
.nav__item.is-active svg{color:var(--brand);}
.nav__label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.member-card{
  margin-top:var(--sp-2);
  padding:16px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.member-card__top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;}
.member-card h3{font-size:15px;}
.member-card p{font-size:13px;line-height:1.7;color:var(--text-3);margin:0 0 12px;}
.badge{
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;font-weight:500;line-height:1;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text-2);
}
.badge--accent{background:linear-gradient(135deg,#F0A93B,#d9891f);color:#1a1204;border-color:transparent;font-weight:600;}
.badge--brand{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.3);color:var(--brand);}
.sidebar__foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;line-height:1.8;color:var(--text-3);}
.sidebar__foot a{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;
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s,background .2s,border-color .2s,color .2s,filter .2s;
}
.btn--primary{
  color:#04121A;
  background:linear-gradient(135deg,#22D3EE,#0EA5C4);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 26px -10px rgba(34,211,238,.6);
}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(34,211,238,.55),0 14px 30px -10px rgba(34,211,238,.72);}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,211,238,.4),0 6px 16px -10px rgba(34,211,238,.5);}
.btn--ghost{
  color:var(--brand);background:rgba(255,255,255,.035);border-color:rgba(34,211,238,.34);
}
.btn--ghost:hover{background:rgba(34,211,238,.10);transform:translateY(-1px);}
.btn--quiet{
  color:var(--text-2);background:transparent;border-color:transparent;
}
.btn--quiet:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.btn--sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.btn--block{width:100%;}
.btn[disabled]{background:#2A3444;color:var(--text-3);box-shadow:none;cursor:not-allowed;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:1.5px solid rgba(4,18,26,.35);border-top-color:#04121A;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* 玻璃卡片 */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),border-color .2s,box-shadow .2s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}

/* Hero / 页头区 */
.pagehead{padding:52px 0 8px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pagehead h1{
  font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.25;
  letter-spacing:-.4px;margin-bottom:14px;
}
.pagehead h1 em{font-style:normal;color:var(--brand);}
.pagehead__lead{font-size:17px;color:var(--text-2);max-width:720px;margin-bottom:18px;}
.metaline{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:var(--text-3);}
.metaline b{color:var(--text-2);font-weight:500;}

/* 板块通用 */
.section{padding:64px 0 0;}
.section:last-of-type{padding-bottom:24px;}
.section__head{margin-bottom:26px;}
.section__head h2{
  position:relative;padding-left:16px;
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;
}
.section__head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:24px;border-radius:3px;
  background:linear-gradient(180deg,#22D3EE,#0E7C93);
  box-shadow:0 0 12px rgba(34,211,238,.7);
}
.section__head p{margin:10px 0 0;color:var(--text-2);font-size:15px;max-width:780px;}

/* 速读条 */
.quickbar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:34px;
}
.quickbar__item{padding:16px 18px;border-radius:var(--radius-md);background:rgba(255,255,255,.028);border:1px solid var(--line);}
.quickbar__k{font-size:13px;color:var(--text-3);}
.quickbar__v{font-size:20px;font-weight:600;color:var(--text-1);margin-top:4px;}
.quickbar__v small{font-size:13px;color:var(--text-3);font-weight:400;margin-left:2px;}

/* 对比表 */
.tablewrap{position:relative;margin-top:8px;}
.ptable{
  width:100%;border-collapse:separate;border-spacing:0;
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  font-size:14.5px;
}
.ptable thead th{
  position:sticky;top:0;z-index:3;
  background:rgba(17,26,44,.94);
  backdrop-filter:blur(12px);
  padding:16px;text-align:left;font-size:14px;font-weight:600;color:var(--text-1);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.ptable thead th small{display:block;font-size:12px;color:var(--text-3);font-weight:400;margin-top:4px;}
.ptable thead th.is-best{background:rgba(240,169,59,.10);color:var(--accent);box-shadow:inset 0 -1px 0 rgba(240,169,59,.3);}
.ptable tbody th{
  position:sticky;left:0;z-index:2;
  background:rgba(11,18,32,.96);
  padding:14px 16px;text-align:left;font-weight:500;color:var(--text-1);font-size:14.5px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.ptable tbody td{
  padding:14px 16px;border-bottom:1px solid var(--line);color:var(--text-body);vertical-align:middle;
}
.ptable tbody td.is-best{background:rgba(240,169,59,.055);box-shadow:inset 1px 0 0 rgba(240,169,59,.22),inset -1px 0 0 rgba(240,169,59,.22);}
.ptable tbody tr:last-child th,.ptable tbody tr:last-child td{border-bottom:0;}
.ptable tbody tr:hover th,.ptable tbody tr:hover td{background-color:rgba(34,211,238,.05);}
.ptable tbody tr:hover td.is-best{background-color:rgba(240,169,59,.09);}
.ico{width:18px;height:18px;flex:0 0 18px;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-4px;}
.ico--yes{stroke:var(--brand);}
.ico--no{stroke:#4d5b70;}
.ico--acc{stroke:var(--accent);}
.cell{display:flex;align-items:center;gap:8px;}
.cell--off{color:var(--text-3);}

/* 等级卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tier{position:relative;padding:24px 22px 22px;display:flex;flex-direction:column;}
.tier::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:18px 18px 0 0;background:var(--brand-deep);}
.tier--std::before{background:linear-gradient(90deg,#22D3EE,#0E7C93);}
.tier--pro::before{background:linear-gradient(90deg,#F0A93B,#d9891f);}
.tier--pro{border-color:rgba(240,169,59,.42);}
.tier__flag{position:absolute;right:16px;top:16px;}
.tier h3{font-size:20px;margin-bottom:6px;}
.tier__sub{font-size:13.5px;color:var(--text-3);margin-bottom:16px;min-height:44px;}
.tier__price{display:flex;align-items:baseline;gap:6px;margin-bottom:18px;padding-bottom:16px;border-bottom:1px dashed var(--line);}
.tier__price b{font-size:30px;font-weight:600;color:var(--accent);letter-spacing:-.5px;font-variant-numeric:tabular-nums;}
.tier__price span{font-size:13px;color:var(--text-3);}
.tier__list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;flex:1;}
.tier__list li{display:flex;gap:9px;font-size:14.5px;color:var(--text-body);line-height:1.7;}
.tier__list svg{margin-top:5px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{position:relative;padding:22px 18px;}
.step__no{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--brand);
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.3);
  margin-bottom:14px;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);margin:0;}

/* 内容预览 */
.preview{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.pv{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:0;}
.pv__media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.pv__media img{width:100%;height:100%;object-fit:cover;filter:saturate(.85);transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.pv:hover .pv__media img{transform:scale(1.04);}
.pv__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.25) 0%,rgba(6,10,18,.88) 78%);
  display:flex;align-items:flex-end;justify-content:space-between;gap:10px;
  padding:14px;transition:transform .25s cubic-bezier(.2,.7,.3,1);
}
.pv:hover .pv__veil{transform:translateY(-4px);}
.pv__body{padding:16px 18px 18px;}
.pv__body h3{font-size:16px;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pv__body p{font-size:13.5px;color:var(--text-3);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.lock{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--accent);
  background:rgba(240,169,59,.12);border:1px solid rgba(240,169,59,.32);
  border-radius:999px;padding:4px 10px;
}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq details{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s,transform .2s cubic-bezier(.2,.7,.3,1);
}
.faq details:hover{border-color:var(--line-strong);}
.faq details[open]{border-color:var(--line-strong);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .fico{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .25s cubic-bezier(.2,.7,.3,1);
}
.faq summary .fico::before,.faq summary .fico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
}
.faq summary .fico::before{width:12px;height:1.6px;transform:translate(-50%,-50%);}
.faq summary .fico::after{width:1.6px;height:12px;transform:translate(-50%,-50%);}
.faq details[open] summary .fico{transform:rotate(45deg);}
.faq__body{padding:0 20px 20px;font-size:15px;color:var(--text-2);line-height:1.9;max-width:62ch;}

/* 表单区 */
.ctabox{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:stretch;
  padding:34px;border-radius:22px;
  background:
    radial-gradient(560px 300px at 88% -10%,rgba(240,169,59,.10),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid var(--line);box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(120%);
}
.ctabox h2{position:relative;padding-left:16px;font-size:clamp(23px,2.4vw,30px);margin-bottom:14px;}
.ctabox h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;background:var(--brand);box-shadow:0 0 12px rgba(34,211,238,.7);
}
.ctabox__list{display:flex;flex-direction:column;gap:10px;margin:18px 0 0;}
.ctabox__list li{display:flex;gap:9px;font-size:14.5px;color:var(--text-2);}
.ctabox__list svg{margin-top:5px;}

.form{padding:22px;border-radius:var(--radius-md);background:rgba(6,10,18,.45);border:1px solid var(--line);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:12px;
  color:var(--text-1);font-size:15px;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field textarea{height:auto;min-height:92px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(140,180,230,.28);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.05);
  box-shadow:0 0 0 3px rgba(34,211,238,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,92,108,.14);}
.field__err{display:none;margin-top:6px;font-size:13px;color:var(--danger);}
.field.has-error .field__err{display:block;}
.form__note{font-size:13px;color:var(--text-3);margin:12px 0 0;line-height:1.7;}

/* 子页脚内 CTA 条 */
.ctabar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:26px 30px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(240,169,59,.06));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.ctabar h3{font-size:19px;margin-bottom:6px;}
.ctabar p{margin:0;font-size:14.5px;color:var(--text-2);}
.ctabar__actions{display:flex;gap:12px;flex:0 0 auto;}

/* toast */
.toast{
  position:fixed;right:24px;bottom:24px;z-index:200;
  display:flex;align-items:center;gap:10px;
  padding:14px 18px;border-radius:14px;
  background:linear-gradient(180deg,rgba(17,26,44,.96),rgba(11,18,32,.96));
  border:1px solid var(--line-strong);box-shadow:var(--shadow-hover);
  color:var(--text-1);font-size:14px;
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .25s,transform .25s;
}
.toast.is-on{opacity:1;transform:translateY(0);}
.toast svg{stroke:var(--success);}

/* 页脚 */
.footer{
  position:relative;margin-top:80px;
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(6,10,18,.95));
  border-top:1px solid var(--line);
}
.footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.75),transparent);
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:52px 0 34px;}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer__desc{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:34ch;}
.footer__col h3{font-size:14px;color:var(--text-1);margin-bottom:14px;font-weight:600;}
.footer__list{display:flex;flex-direction:column;gap:9px;}
.footer__list a,.footer__list span{font-size:13.5px;color:var(--text-3);transition:color .2s;}
.footer__list a:hover{color:var(--brand);}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);flex-wrap:wrap;
}

/* 顶部移动端导航 */
.topbar{
  display:none;position:fixed;left:0;right:0;top:0;height:56px;z-index:80;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,18,.82);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px) saturate(120%);
  transition:background .25s,border-color .25s;
}
.topbar.is-scrolled{background:rgba(6,10,18,.95);border-bottom-color:var(--line);}
.topbar__brand{display:flex;align-items:center;gap:9px;}
.topbar__brand .brand__mark{width:32px;height:32px;font-size:12px;border-radius:10px;}
.topbar__brand span:last-child{font-size:15px;font-weight:600;color:var(--text-1);}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);display:grid;place-content:center;gap:4px;cursor:pointer;
}
.burger span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .25s,opacity .25s;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}
.mask{
  position:fixed;inset:0;z-index:70;background:rgba(6,10,18,.6);
  opacity:0;pointer-events:none;transition:opacity .25s;
}
.mask.is-on{opacity:1;pointer-events:auto;}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .4s ease,transform .4s cubic-bezier(.2,.7,.3,1);}
.reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1279px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:20px 12px;align-items:center;}
  .sidebar__brand{padding:4px 0 16px;border-bottom:1px solid var(--line);justify-content:center;}
  .sidebar__brand .brand__text{display:none;}
  .nav{width:100%;}
  .nav__item{justify-content:center;padding:12px 0;}
  .nav__label{position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:rgba(11,18,32,.98);border:1px solid var(--line);border-radius:10px;
    padding:7px 12px;font-size:13.5px;color:var(--text-1);white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .18s;box-shadow:var(--shadow);z-index:20;}
  .nav__item:hover .nav__label{opacity:1;}
  .member-card{padding:14px 8px;text-align:center;}
  .member-card h3,.member-card p{display:none;}
  .member-card .btn{padding:0;width:44px;}
  .member-card .btn span{display:none;}
  .sidebar__foot{display:none;}
  .ctabox{grid-template-columns:1fr;}
}
@media (max-width:1023px){
  .topbar{display:flex;}
  .layout{display:block;}
  .content{padding-top:56px;}
  .sidebar{
    position:fixed;top:0;right:0;left:auto;bottom:0;
    width:300px;max-width:86vw;height:100vh;
    flex:0 0 auto;
    align-items:stretch;
    padding:22px 16px 20px;
    transform:translateX(102%);
    transition:transform .3s cubic-bezier(.2,.7,.3,1);
    background:linear-gradient(180deg,rgba(11,18,32,.99),rgba(6,10,18,.99));
    border-right:0;border-left:1px solid var(--line);
    z-index:90;
  }
  .sidebar.is-open{transform:translateX(0);}
  .sidebar__brand{justify-content:flex-start;padding:4px 8px 16px;}
  .sidebar__brand .brand__text{display:block;}
  .nav__item{justify-content:flex-start;padding:13px 12px;min-height:48px;}
  .nav__label{position:static;opacity:1;transform:none;background:none;border:0;padding:0;box-shadow:none;font-size:15px;color:inherit;}
  .nav__item.is-active .nav__label{color:var(--text-1);}
  .member-card{padding:16px;text-align:left;}
  .member-card h3,.member-card p{display:block;}
  .member-card .btn{width:100%;padding:0 22px;}
  .member-card .btn span{display:inline;}
  .sidebar__foot{display:block;}
  .container{padding:0 20px;}
  .pagehead{padding:32px 0 4px;}
  .section{padding:48px 0 0;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .preview{grid-template-columns:1fr 1fr;}
  .quickbar{grid-template-columns:1fr 1fr;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;padding:40px 0 26px;}
  .footer__desc{max-width:none;}
}
@media (max-width:767px){
  .ptable thead{display:none;}
  .ptable,.ptable tbody,.ptable tr,.ptable th,.ptable td{display:block;width:100%;}
  .ptable{border:0;background:none;}
  .ptable tbody tr{
    margin-bottom:16px;border:1px solid var(--line);border-radius:var(--radius-md);
    background:var(--glass);overflow:hidden;box-shadow:var(--shadow);
  }
  .ptable tbody th{
    position:static;padding:14px 16px;border-bottom:1px solid var(--line);
    background:rgba(34,211,238,.07);color:var(--text-1);font-weight:600;white-space:normal;
  }
  .ptable tbody td{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:12px 16px;border-bottom:1px dashed var(--line);text-align:right;
  }
  .ptable tbody td::before{content:attr(data-label);color:var(--text-3);font-size:13px;text-align:left;}
  .ptable tbody td.is-best{box-shadow:none;background:rgba(240,169,59,.07);}
  .ptable tbody tr:hover td,.ptable tbody tr:hover th{background-color:transparent;}
  .cell{justify-content:flex-end;}
  .ctabar{flex-direction:column;align-items:flex-start;gap:18px;padding:22px;}
  .ctabar__actions{width:100%;flex-direction:column;}
  .ctabar__actions .btn{width:100%;}
}
@media (max-width:600px){
  body{font-size:15px;line-height:1.85;}
  .container{padding:0 16px;}
  .section{padding:44px 0 0;}
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .preview{grid-template-columns:1fr;}
  .quickbar{grid-template-columns:1fr 1fr;gap:12px;}
  .pagehead h1{font-size:26px;}
  .tier__sub{min-height:0;}
  .ctabox{padding:22px;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .toast{left:16px;right:16px;bottom:auto;top:66px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}