/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#1652f0;
  --brand-dark:#0c3ecb;
  --brand-soft:#e9f0ff;
  --accent:#0fb5a6;
  --accent-soft:#e3f8f5;
  --warn:#ff8a3d;
  --warn-soft:#fff1e6;
  --ink:#0d1b2e;
  --ink-2:#31415a;
  --muted:#6c7d95;
  --line:#e5ebf4;
  --bg:#f5f8fd;
  --card:#ffffff;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:24px;
  --shadow-xs:0 1px 2px rgba(13,27,46,.06);
  --shadow-sm:0 8px 20px -12px rgba(13,27,46,.22);
  --shadow:0 20px 44px -24px rgba(13,27,46,.30);
  --shadow-lg:0 34px 72px -34px rgba(13,27,46,.38);
  --ctr:1200px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础重置 ============ */
*,*::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:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.012em;}
p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(22,82,240,.35);outline-offset:2px;border-radius:8px;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}

/* ============ 容器与栅格 ============ */
.grid-container,
.container{
  width:100%;
  max-width:var(--ctr);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:84px 0;}
.section--tight{padding:60px 0;}
.section--white{background:#fff;}
.section--dark{background:#0b1830;color:#dce5f5;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:#93a6c4;}
.section--band{
  background:linear-gradient(180deg,#eef4ff 0%,#f7faff 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.1vw,34px);color:var(--ink);}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--accent{color:#0a7c72;background:var(--accent-soft);}
.eyebrow--warn{color:#b85714;background:var(--warn-soft);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);}
.logo__mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand) 0%,#3d7bff 60%,#12b3a6 130%);
  color:#fff;font-size:15px;
  box-shadow:0 10px 20px -12px rgba(22,82,240,.9);
}
.logo:hover{color:var(--brand);}
.nav{display:flex;align-items:center;gap:6px;}
.nav__link{
  position:relative;
  padding:9px 15px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease;
}
.nav__link:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav__link.is-active{background:var(--brand-soft);color:var(--brand);}
.nav__link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;
  width:18px;height:3px;border-radius:3px;background:var(--brand);
  transform:translateX(-50%);
}
.site-header__actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand) 0%,#2f6dff 100%);
  color:#fff;box-shadow:0 16px 30px -16px rgba(22,82,240,.85);
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(22,82,240,.9);}
.btn--primary:active{transform:translateY(0);box-shadow:0 10px 20px -14px rgba(22,82,240,.9);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-xs);}
.btn--ghost:hover{color:var(--brand);border-color:#bdd0ff;transform:translateY(-2px);}
.btn--soft{background:var(--brand-soft);color:var(--brand-dark);}
.btn--soft:hover{background:#dbe7ff;color:var(--brand-dark);}
.btn--dark{background:#0b1830;color:#fff;}
.btn--dark:hover{background:#16274a;color:#fff;transform:translateY(-2px);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);
}
.chip--accent{background:var(--accent-soft);color:#0a7c72;}
.chip--warn{background:var(--warn-soft);color:#b85714;}
.chip--line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:72px 0 78px;
  background:
    radial-gradient(900px 380px at 8% -14%,rgba(22,82,240,.13),transparent 62%),
    radial-gradient(760px 320px at 96% 4%,rgba(15,181,166,.13),transparent 60%),
    #ffffff;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero__head{max-width:900px;}
.hero h1{
  font-size:clamp(28px,4.4vw,50px);
  line-height:1.22;
  letter-spacing:-.025em;
  margin:16px 0 0;
}
.hero__sub{
  margin-top:16px;font-size:clamp(16px,1.7vw,20px);
  font-weight:600;color:var(--brand-dark);
}
.hero__lead{
  margin-top:16px;max-width:820px;
  color:var(--ink-2);font-size:16px;line-height:1.9;
}
.hero__bento{margin-top:40px;}
.bento{
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.bento:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d3e0f7;}
.bento--ring{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;}
.bento--points{background:linear-gradient(160deg,#f7faff 0%,#ffffff 60%);}
.bento--cta{
  background:linear-gradient(165deg,#0b1830 0%,#153062 100%);
  color:#e7eefb;border-color:#1d2f57;
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
}
.bento--cta:hover{border-color:#2b4690;}
.bento__label{font-size:14px;font-weight:700;color:var(--ink-2);letter-spacing:.02em;}
.bento--cta .bento__label{color:#8ea9d8;}

.countdown{
  --p:0deg;
  width:172px;height:172px;border-radius:50%;
  background:conic-gradient(var(--brand) var(--p),#e3ebfa 0deg);
  display:grid;place-items:center;position:relative;
  transition:background .6s linear;
}
.countdown::after{
  content:"";position:absolute;inset:13px;border-radius:50%;
  background:#fff;box-shadow:inset 0 2px 10px rgba(13,27,46,.05);
}
.countdown__inner{position:relative;z-index:1;text-align:center;}
.countdown__time{
  font-size:26px;font-weight:800;letter-spacing:.02em;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.countdown__hint{font-size:12.5px;color:var(--muted);letter-spacing:.08em;margin-top:2px;}

.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--line);
}
.point-list li:last-child{border-bottom:0;padding-bottom:0;}
.point-list i{
  flex:none;width:26px;height:26px;border-radius:9px;margin-top:3px;
  display:grid;place-items:center;font-size:12px;
  background:var(--brand-soft);color:var(--brand);
}
.point-list strong{display:block;font-size:15px;color:var(--ink);}
.point-list span{font-size:13.5px;color:var(--muted);line-height:1.7;}

.mini-stats{display:flex;flex-wrap:wrap;gap:16px;}
.mini-stats div{flex:1 1 88px;}
.mini-stats b{display:block;font-size:20px;color:#fff;font-weight:800;}
.mini-stats span{font-size:12.5px;color:#8ea9d8;}

/* ============ 指标看板 ============ */
.metric-card{
  height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdffa;}
.metric-card__icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;margin-bottom:16px;
}
.metric-card__num{
  font-size:30px;font-weight:800;letter-spacing:-.03em;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.metric-card__num small{font-size:15px;font-weight:700;color:var(--brand);margin-left:2px;}
.metric-card__name{margin-top:4px;font-size:15px;font-weight:700;color:var(--ink-2);}
.metric-card__text{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.75;}

/* ============ 服务矩阵 ============ */
.feature-card{
  height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 24px;
  box-shadow:var(--shadow-xs);position:relative;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transition:width .3s ease;
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cfdffa;}
.feature-card:hover::before{width:100%;}
.feature-card__icon{
  width:48px;height:48px;border-radius:15px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-soft),#f3f7ff);
  color:var(--brand);font-size:19px;margin-bottom:18px;
}
.feature-card h3{font-size:18px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ============ 佣金 / 收益 ============ */
.pay-card{
  height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease;
}
.pay-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.pay-card__rate{
  font-size:34px;font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(120deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.pay-card h3{font-size:17px;margin:10px 0 8px;}
.pay-card p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 物料网格 ============ */
.material-item{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;height:100%;
  transition:transform .2s ease,box-shadow .22s ease,border-color .2s ease;
}
.material-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdffa;}
.material-item__no{
  flex:none;width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  background:var(--brand-soft);color:var(--brand);
}
.material-item h3{font-size:16px;margin-bottom:6px;}
.material-item p{font-size:13.8px;color:var(--muted);line-height:1.78;}

/* ============ 结算说明 ============ */
.settle-list{display:grid;gap:14px;}
.settle-list li{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,box-shadow .22s ease;
}
.settle-list li:hover{border-color:#cfdffa;box-shadow:var(--shadow-sm);}
.settle-list .idx{
  flex:none;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  background:#0b1830;color:#fff;
}
.settle-list strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:4px;}
.settle-list p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 对比 ============ */
.compare-col{
  height:100%;border-radius:var(--radius-lg);padding:28px;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow-xs);
}
.compare-col--old{background:#fafbfe;}
.compare-col--new{
  background:linear-gradient(165deg,#f4f8ff 0%,#ffffff 70%);
  border-color:#cfdffa;box-shadow:var(--shadow);
}
.compare-col__title{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;margin-bottom:18px;
}
.compare-col--old .compare-col__title{color:var(--muted);}
.compare-col--new .compare-col__title{color:var(--brand-dark);}
.compare-col ul li{
  display:flex;gap:11px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--ink-2);line-height:1.75;
}
.compare-col ul li:last-child{border-bottom:0;}
.compare-col--old ul li i{color:#b3c0d4;font-size:13px;margin-top:6px;}
.compare-col--new ul li i{color:var(--accent);font-size:13px;margin-top:6px;}

/* ============ 里程碑 ============ */
.timeline{position:relative;padding-left:28px;}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(22,82,240,.1));
}
.timeline li{position:relative;padding:0 0 30px 12px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-27px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(22,82,240,.10);
}
.timeline__year{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:3px 10px;border-radius:999px;margin-bottom:9px;
}
.timeline h3{font-size:17px;margin-bottom:6px;}
.timeline p{font-size:14.2px;color:var(--muted);line-height:1.82;}

/* ============ 案例 / 评价 ============ */
.quote-card{
  height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-xs);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdffa;}
.quote-card__text{font-size:14.6px;color:var(--ink-2);line-height:1.88;flex:1;}
.quote-card__user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-weight:800;font-size:15px;color:#fff;
  background:linear-gradient(140deg,var(--brand),#3d7bff);
}
.quote-card__user b{display:block;font-size:14.5px;color:var(--ink);}
.quote-card__user span{font-size:12.5px;color:var(--muted);}

/* ============ 资讯列表 ============ */
.news-list li{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .2s ease,background-color .2s ease;
}
.news-list li:last-child{border-bottom:0;}
.news-list li:hover{padding-left:12px;background:#fbfdff;}
.news-list__date{
  flex:none;width:88px;font-size:13px;font-weight:700;color:var(--muted);
  letter-spacing:.02em;padding-top:2px;
}
.news-list h3{font-size:16px;margin-bottom:6px;}
.news-list p{font-size:13.8px;color:var(--muted);line-height:1.78;}

/* ============ 保障徽章 ============ */
.guard-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  height:100%;
  transition:background-color .22s ease,border-color .22s ease,transform .22s ease;
}
.guard-item:hover{background:rgba(255,255,255,.09);border-color:rgba(120,170,255,.4);transform:translateY(-3px);}
.guard-item i{color:#7fb0ff;font-size:17px;margin-top:5px;flex:none;}
.guard-item h3{font-size:15.5px;color:#fff;margin-bottom:6px;}
.guard-item p{font-size:13.5px;color:#93a6c4;line-height:1.78;}

/* ============ 会员权益表 ============ */
.plan-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
table.plan-table{width:100%;border-collapse:collapse;font-size:14.6px;}
.plan-table thead th{
  background:#f4f7ff;color:var(--ink-2);
  font-size:13.5px;font-weight:700;letter-spacing:.03em;
  padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.plan-table thead th.hl{color:var(--brand-dark);background:#e9f0ff;}
.plan-table tbody td{
  padding:15px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);
}
.plan-table tbody tr:last-child td{border-bottom:0;}
.plan-table tbody tr:hover td{background:#fafcff;}
.plan-table tbody td:first-child{font-weight:700;color:var(--ink);}
.plan-table td.hl{background:#f6f9ff;color:var(--brand-dark);font-weight:700;}
.plan-table i.yes{color:var(--accent);}
.plan-table i.no{color:#c4cedd;}

.plan-note{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;
}
.plan-note span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-2);font-weight:600;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;box-shadow:var(--shadow-xs);
}
.plan-note i{color:var(--brand);}

/* ============ 快速解答 ============ */
.qa-card{
  height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,box-shadow .22s ease,transform .22s ease;
}
.qa-card:hover{border-color:#cfdffa;box-shadow:var(--shadow);transform:translateY(-3px);}
.qa-card__q{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15.6px;font-weight:700;color:var(--ink);margin-bottom:10px;
}
.qa-card__q i{color:var(--brand);font-size:15px;margin-top:5px;flex:none;}
.qa-card__a{font-size:14.2px;color:var(--muted);line-height:1.86;padding-left:25px;}

/* ============ 转化区 ============ */
.join-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:34px;
}
.join-points{display:grid;gap:14px;margin-bottom:26px;}
.join-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.4px;color:var(--ink-2);line-height:1.78;}
.join-points i{color:var(--accent);font-size:14px;margin-top:5px;flex:none;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-bottom:7px;}
.form-row input,
.form-row select{
  width:100%;padding:13px 16px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fbfcff;color:var(--ink);
  font-size:14.6px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-row input::placeholder{color:#a3b0c2;}
.form-row input:focus,
.form-row select:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 4px rgba(22,82,240,.12);
}
.form-note{font-size:12.8px;color:var(--muted);margin-top:12px;line-height:1.7;}
.form-msg{
  display:none;margin-top:14px;font-size:13.8px;font-weight:600;
  color:#0a7c72;background:var(--accent-soft);
  border-radius:var(--radius-sm);padding:11px 16px;
}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:#08132a;color:#9fb2cf;padding:64px 0 26px;
  border-top:1px solid rgba(255,255,255,.06);
}
.site-footer a{color:#c4d3ea;}
.site-footer a:hover{color:#fff;}
.footer__brand .logo{color:#fff;}
.footer__brand p{margin-top:16px;font-size:13.8px;line-height:1.85;max-width:340px;color:#8ea1bf;}
.footer__col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer__col li{margin-bottom:11px;font-size:14px;}
.footer__bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7d8fae;
}
.footer__social{display:flex;gap:10px;margin-top:20px;}
.footer__social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);color:#c4d3ea;font-size:14px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.footer__social a:hover{background:rgba(22,82,240,.9);color:#fff;transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .section{padding:68px 0;}
  .hero{padding:56px 0 64px;}
  .site-header__inner{min-height:66px;}
  .nav{gap:2px;}
  .nav__link{padding:8px 12px;font-size:14.2px;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);padding:12px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav__link{padding:12px 14px;border-radius:var(--radius-sm);}
  .nav__link.is-active::after{display:none;}
  .site-header__actions .btn--primary{display:none;}
  .hero__lead{font-size:15.4px;}
  .compare-col{padding:24px;}
}
@media screen and (max-width:768px){
  .grid-container,.container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .section--tight{padding:46px 0;}
  .section-head{margin-bottom:32px;}
  .section-desc{font-size:15px;}
  .hero h1{font-size:clamp(25px,7vw,34px);}
  .countdown{width:148px;height:148px;}
  .countdown__time{font-size:22px;}
  .plan-table{font-size:13.6px;}
  .plan-table thead th,.plan-table tbody td{padding:12px 12px;}
  .news-list li{flex-direction:column;gap:6px;}
  .news-list__date{width:auto;}
  .join-panel{padding:24px;}
}
@media screen and (max-width:520px){
  body{font-size:15px;}
  .hero{padding:44px 0 52px;}
  .bento{padding:20px;border-radius:var(--radius);}
  .metric-card,.feature-card,.quote-card,.qa-card,.pay-card,.material-item{padding:20px;}
  .btn{padding:12px 20px;font-size:14.4px;width:100%;}
  .hero__points-actions{display:grid;gap:10px;}
  .mini-stats{gap:12px;}
  .mini-stats div{flex:1 1 40%;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .timeline{padding-left:22px;}
}

/* roulang page: category3 */
:root{
 --brand:#1652f0;
 --brand-dark:#0c3ecb;
 --brand-soft:#e9f0ff;
 --accent:#0fb5a6;
 --accent-soft:#e3f8f5;
 --warn:#ff8a3d;
 --warn-soft:#fff1e6;
 --ink:#0d1b2e;
 --ink-2:#31415a;
 --muted:#6c7d95;
 --line:#e5ebf4;
 --bg:#f5f8fd;
 --card:#ffffff;
 --radius-xs:8px;
 --radius-sm:12px;
 --radius:16px;
 --radius-lg:24px;
 --shadow-xs:0 1px 2px rgba(13,27,46,.06);
 --shadow-sm:0 8px 20px -12px rgba(13,27,46,.22);
 --shadow:0 20px 44px -24px rgba(13,27,46,.30);
 --shadow-lg:0 34px 72px -34px rgba(13,27,46,.38);
 --ctr:1200px;
 --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ reset / base ============ */
*,*::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:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.32;letter-spacing:-.02em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .22s ease,transform .18s ease;}
a:hover{color:var(--brand);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(22,82,240,.35);outline-offset:2px;border-radius:8px;}

/* ============ 容器与板块 ============ */
.grid-container{
 width:100%;
 max-width:var(--ctr);
 margin:0 auto;
 padding-left:24px;
 padding-right:24px;
}
.section{padding:84px 0;}
.section--tight{padding:62px 0;}
.section--white{background:#fff;}
.section--dark{background:#0b1830;color:#dce5f5;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:#93a6c4;}
.section--band{
 background:linear-gradient(180deg,#eef4ff 0%,#f8fbff 100%);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:42px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.1vw,34px);}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:.06em;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--accent{color:#0a7c72;background:var(--accent-soft);}
.eyebrow--warn{color:#b85714;background:var(--warn-soft);}

/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
}
.site-header__inner{
 display:flex;align-items:center;justify-content:space-between;
 gap:24px;min-height:72px;position:relative;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);}
.logo__mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,var(--brand) 0%,#3d7bff 60%,#12b3a6 130%);
 color:#fff;font-size:15px;
 box-shadow:0 10px 20px -12px rgba(22,82,240,.9);
}
.logo:hover{color:var(--brand);}
.nav{display:flex;align-items:center;gap:6px;}
.nav__link{
 position:relative;
 padding:9px 15px;border-radius:999px;
 font-size:15px;font-weight:600;color:var(--ink-2);
 transition:background-color .2s ease,color .2s ease;
}
.nav__link:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav__link.is-active{background:var(--brand-soft);color:var(--brand);}
.nav__link.is-active::after{
 content:"";position:absolute;left:50%;bottom:1px;
 width:18px;height:3px;border-radius:3px;background:var(--brand);
 transform:translateX(-50%);
}
.site-header__actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:12px;
 border:1px solid var(--line);background:#fff;color:var(--ink-2);
 align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;
 font-size:15px;font-weight:700;letter-spacing:.01em;
 border:1px solid transparent;cursor:pointer;
 transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.btn--primary{
 background:linear-gradient(135deg,var(--brand) 0%,#2f6dff 100%);
 color:#fff;box-shadow:0 16px 30px -16px rgba(22,82,240,.85);
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(22,82,240,.9);}
.btn--primary:active{transform:translateY(0);box-shadow:0 10px 20px -14px rgba(22,82,240,.9);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-xs);}
.btn--ghost:hover{color:var(--brand);border-color:#bdd0ff;transform:translateY(-2px);}
.btn--soft{background:var(--brand-soft);color:var(--brand-dark);}
.btn--soft:hover{background:#dbe7ff;color:var(--brand-dark);}
.btn--dark{background:#0b1830;color:#fff;}
.btn--dark:hover{background:#16274a;color:#fff;transform:translateY(-2px);}
.btn--warn{background:linear-gradient(135deg,#ff8a3d 0%,#ff6b2c 100%);color:#fff;box-shadow:0 16px 30px -18px rgba(255,107,44,.9);}
.btn--warn:hover{color:#fff;transform:translateY(-2px);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--lg{padding:15px 32px;font-size:16px;}
.btn--block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.chip{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:var(--brand-soft);color:var(--brand-dark);
}
.chip--accent{background:var(--accent-soft);color:#0a7c72;}
.chip--warn{background:var(--warn-soft);color:#b85714;}
.chip--line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* ============ Hero 促销主视觉 ============ */
.hero{
 position:relative;overflow:hidden;
 padding:66px 0 74px;
 background:
 radial-gradient(880px 380px at 6% -16%,rgba(22,82,240,.14),transparent 62%),
 radial-gradient(720px 320px at 98% 0%,rgba(15,181,166,.14),transparent 60%),
 #fff;
 border-bottom:1px solid var(--line);
}
.hero__topline{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px;}
.deal-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:8px 16px;border-radius:999px;
 background:linear-gradient(135deg,#ff8a3d 0%,#ff5f6d 100%);
 color:#fff;font-size:13px;font-weight:800;letter-spacing:.02em;
 box-shadow:0 14px 26px -16px rgba(255,95,109,.95);
}
.hero h1{font-size:clamp(28px,4.3vw,48px);line-height:1.22;letter-spacing:-.028em;}
.hero h1 .hl{
 background:linear-gradient(120deg,var(--brand) 0%,#2f6dff 55%,var(--accent) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{margin-top:18px;max-width:640px;color:var(--ink-2);font-size:17px;line-height:1.9;}
.hero__points{margin-top:22px;display:grid;gap:11px;max-width:620px;}
.hero__points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2);}
.hero__points i{color:var(--accent);margin-top:5px;font-size:14px;}
.hero__actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero__note{margin-top:18px;font-size:13.5px;color:var(--muted);}
.hero__note i{color:var(--warn);margin-right:6px;}

.deal-panel{
 position:relative;
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:30px 26px 26px;
 box-shadow:var(--shadow-lg);
}
.deal-panel__burst{
 position:absolute;top:-16px;right:20px;
 padding:8px 18px;border-radius:999px;
 background:linear-gradient(135deg,#ff8a3d,#ff4d6d);
 color:#fff;font-size:13px;font-weight:800;letter-spacing:.02em;
 transform:rotate(-5deg);
 box-shadow:0 16px 26px -16px rgba(255,77,109,.95);
}
.deal-panel__title{font-size:18px;margin-bottom:6px;}
.deal-panel__tip{font-size:13.5px;color:var(--muted);}
.deal-panel__list{margin-top:18px;}
.deal-panel__row{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2);
}
.deal-panel__row:last-of-type{border-bottom:0;}
.deal-panel__row strong{color:var(--ink);font-weight:700;}
.deal-panel__total{
 margin-top:14px;padding:16px;border-radius:var(--radius);
 background:var(--brand-soft);display:flex;align-items:center;justify-content:space-between;
}
.deal-panel__total span{font-size:13.5px;color:var(--brand-dark);font-weight:700;}
.deal-panel__total em{font-style:normal;font-size:24px;font-weight:800;color:var(--brand-dark);}
.deal-panel .btn{margin-top:18px;}
.deal-panel__foot{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center;}

/* ============ 指标看板 ============ */
.kpi-grid{margin-top:8px;}
.kpi-card{
 height:100%;
 background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius);padding:24px 22px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .24s ease,border-color .2s ease;
}
.kpi-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c9d9ff;}
.kpi-card__icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-size:17px;margin-bottom:16px;
}
.kpi-card__num{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--brand-dark);line-height:1.1;}
.kpi-card__num small{font-size:16px;font-weight:700;margin-left:3px;color:var(--ink-2);}
.kpi-card__label{margin-top:8px;font-size:15px;font-weight:700;color:var(--ink);}
.kpi-card__meta{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ============ 权益矩阵 ============ */
.matrix-card{
 height:100%;
 background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius);padding:26px 24px;
 box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .24s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#cfdeff;}
.matrix-card--wide{background:linear-gradient(160deg,#ffffff 0%,#f6f9ff 100%);}
.matrix-card__head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.matrix-card__icon{
 width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--brand) 0%,#3d7bff 100%);
 color:#fff;font-size:18px;flex:0 0 auto;
}
.matrix-card__icon--accent{background:linear-gradient(135deg,#0fb5a6,#37d2c2);}
.matrix-card__icon--warn{background:linear-gradient(135deg,#ff8a3d,#ff6b2c);}
.matrix-card h3{font-size:18px;}
.matrix-card p{color:var(--muted);font-size:14.5px;line-height:1.85;}
.matrix-card ul{margin-top:16px;display:grid;gap:9px;}
.matrix-card ul li{display:flex;gap:9px;font-size:14.5px;color:var(--ink-2);}
.matrix-card ul li i{color:var(--brand);margin-top:5px;font-size:12px;}
.matrix-card__tag{margin-top:18px;}

/* ============ 结果对比 ============ */
.compare{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.compare__head{
 display:grid;grid-template-columns:1.3fr 1fr 1fr;
 align-items:center;gap:12px;
 padding:20px 26px;background:#f7faff;border-bottom:1px solid var(--line);
 font-size:14px;font-weight:700;color:var(--ink-2);
}
.compare__head span:nth-child(3){color:var(--brand-dark);}
.compare__row{
 display:grid;grid-template-columns:1.3fr 1fr 1fr;align-items:center;gap:12px;
 padding:18px 26px;border-bottom:1px solid var(--line);font-size:14.5px;
}
.compare__row:last-child{border-bottom:0;}
.compare__row:hover{background:#fafcff;}
.compare__label{font-weight:700;color:var(--ink);}
.compare__cell{color:var(--muted);display:flex;align-items:center;gap:8px;}
.compare__cell--good{color:var(--brand-dark);font-weight:700;}
.compare__cell i{font-size:13px;}

/* ============ 里程碑 ============ */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
 content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--brand),rgba(22,82,240,.08));
}
.timeline__item{position:relative;padding-bottom:30px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
 content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 5px rgba(22,82,240,.10);
}
.timeline__item h3{font-size:17px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.timeline__item p{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.85;}
.timeline-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-xs);
}

/* ============ 资讯列表 ============ */
.news-list{display:grid;gap:16px;}
.news-item{
 display:grid;grid-template-columns:88px 1fr auto;gap:20px;align-items:center;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-xs);
 transition:transform .18s ease,box-shadow .24s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#cfdeff;}
.news-item__date{
 text-align:center;font-size:13px;font-weight:800;color:var(--brand-dark);
 background:var(--brand-soft);border-radius:var(--radius-sm);padding:10px 6px;line-height:1.4;
}
.news-item__date span{display:block;font-size:11.5px;font-weight:700;color:var(--brand);letter-spacing:.08em;}
.news-item h3{font-size:16.5px;}
.news-item p{margin-top:7px;color:var(--muted);font-size:14px;line-height:1.8;}
.news-item__more{font-size:14px;font-weight:700;color:var(--brand);white-space:nowrap;}

/* ============ 平台保障（深色带） ============ */
.guard-grid{margin-top:6px;}
.guard-card{
 height:100%;
 background:rgba(255,255,255,.05);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius);padding:24px 22px;
 transition:background-color .2s ease,transform .2s ease;
}
.guard-card:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);}
.guard-card i{font-size:20px;color:#68d8cd;}
.guard-card h3{margin-top:14px;font-size:17px;color:#fff;}
.guard-card p{margin-top:9px;font-size:14px;line-height:1.85;color:#9fb2ce;}

/* ============ 快速解答 ============ */
.qa-panel{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:30px 28px;box-shadow:var(--shadow-sm);height:100%;
}
.qa-panel h3{font-size:18px;display:flex;align-items:center;gap:10px;}
.qa-panel h3 i{color:var(--brand);}
.qa-list{margin-top:18px;display:grid;gap:2px;}
.qa-item{padding:14px 0;border-bottom:1px dashed var(--line);}
.qa-item:last-child{border-bottom:0;padding-bottom:0;}
.qa-item dt{font-size:14.5px;font-weight:700;color:var(--ink);}
.qa-item dd{margin:6px 0 0;font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq details{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;
 transition:border-color .2s ease,box-shadow .24s ease;
}
.faq details[open]{border-color:#c9d9ff;box-shadow:var(--shadow-sm);}
.faq summary{
 list-style:none;cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
 padding:20px 24px;font-size:16px;font-weight:700;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq summary .faq__ico{
 width:28px;height:28px;border-radius:50%;flex:0 0 auto;
 display:grid;place-items:center;font-size:12px;
 background:var(--brand-soft);color:var(--brand);transition:transform .22s ease;
}
.faq details[open] .faq__ico{transform:rotate(180deg);}
.faq__body{padding:0 24px 22px;font-size:14.5px;color:var(--muted);line-height:1.9;}

/* ============ 转化表单 ============ */
.join{
 background:linear-gradient(135deg,#0d1b3a 0%,#12306b 55%,#0f5f8a 100%);
 border-radius:var(--radius-lg);
 padding:44px 40px;
 color:#dbe5f6;
 box-shadow:var(--shadow-lg);
 position:relative;overflow:hidden;
}
.join::after{
 content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(15,181,166,.35),transparent 70%);
}
.join__head{position:relative;z-index:1;max-width:600px;}
.join__head h2{color:#fff;font-size:clamp(22px,2.8vw,30px);}
.join__head p{margin-top:14px;color:#a8bcda;font-size:15px;line-height:1.85;}
.join-form{position:relative;z-index:1;margin-top:28px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#c3d3ec;margin-bottom:8px;}
.field input,.field select{
 width:100%;padding:13px 16px;border-radius:var(--radius-sm);
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.08);color:#fff;font-size:15px;
 transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#8fa3bf;}
.field input:focus,.field select:focus{
 outline:none;border-color:#68d8cd;background:rgba(255,255,255,.14);
 box-shadow:0 0 0 4px rgba(104,216,205,.18);
}
.field select option{color:#0d1b2e;}
.join__hint{margin-top:14px;font-size:12.5px;color:#93a6c4;}
.form-msg{
 margin-top:16px;padding:12px 16px;border-radius:var(--radius-sm);
 background:rgba(15,181,166,.18);border:1px solid rgba(104,216,205,.45);
 color:#c8f4ef;font-size:14px;display:none;
}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:#0b1830;color:#93a6c4;padding:64px 0 30px;margin-top:84px;}
.site-footer .logo{color:#fff;}
.site-footer .logo__text{color:#fff;}
.footer__brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:#8ea2c0;}
.footer__social{margin-top:20px;display:flex;gap:10px;}
.footer__social a{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);color:#b9cbe6;
 transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.footer__social a:hover{background:var(--brand);color:#fff;transform:translateY(-3px);}
.footer__col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer__col ul{display:grid;gap:11px;}
.footer__col a{font-size:14.5px;color:#93a6c4;}
.footer__col a:hover{color:#fff;}
.footer__bottom{
 margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 font-size:13px;color:#7e92b0;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
 .section{padding:66px 0;}
 .nav{
  display:none;
  position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);padding:14px 24px 20px;
 }
 .nav.is-open{display:flex;}
 .nav__link{padding:12px 14px;border-radius:var(--radius-sm);}
 .nav__link.is-active::after{display:none;}
 .nav-toggle{display:inline-flex;}
 .hero{padding:54px 0 62px;}
 .join{padding:36px 26px;}
}
@media screen and (max-width:768px){
 .section{padding:54px 0;}
 .section-head{margin-bottom:30px;}
 .kpi-card__num{font-size:29px;}
 .compare__head{display:none;}
 .compare__row{grid-template-columns:1fr;gap:6px;padding:18px 20px;border-bottom:1px solid var(--line);}
 .compare__row .compare__label{font-size:15px;}
 .compare__cell{font-size:14px;}
 .compare__row::after{content:"";display:block;}
 .news-item{grid-template-columns:74px 1fr;gap:14px;padding:18px;}
 .news-item__more{grid-column:2;}
 .timeline{padding-left:26px;}
 .timeline__item::before{left:-25px;}
 .footer__bottom{flex-direction:column;}
 .site-footer{margin-top:60px;padding-top:48px;}
}
@media screen and (max-width:520px){
 .grid-container{padding-left:18px;padding-right:18px;}
 .hero h1{font-size:27px;}
 .hero__sub{font-size:15.5px;}
 .hero__actions{flex-direction:column;align-items:stretch;}
 .hero__actions .btn{width:100%;}
 .deal-panel{padding:26px 20px 22px;}
 .deal-panel__burst{right:12px;font-size:12px;padding:7px 14px;}
 .btn{padding:12px 20px;font-size:14.5px;}
 .join{padding:30px 20px;border-radius:var(--radius);}
 .qa-panel{padding:24px 20px;}
 .faq summary{padding:16px 18px;font-size:15px;}
 .faq__body{padding:0 18px 18px;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
 --brand:#1652f0;
 --brand-dark:#0c3ecb;
 --brand-soft:#e9f0ff;
 --accent:#0fb5a6;
 --accent-soft:#e3f8f5;
 --warn:#ff8a3d;
 --warn-soft:#fff1e6;
 --ink:#0d1b2e;
 --ink-2:#31415a;
 --muted:#6c7d95;
 --line:#e5ebf4;
 --bg:#f5f8fd;
 --card:#ffffff;
 --radius-xs:8px;
 --radius-sm:12px;
 --radius:16px;
 --radius-lg:24px;
 --shadow-xs:0 1px 2px rgba(13,27,46,.06);
 --shadow-sm:0 8px 20px -12px rgba(13,27,46,.22);
 --shadow:0 20px 44px -24px rgba(13,27,46,.30);
 --shadow-lg:0 34px 72px -34px rgba(13,27,46,.38);
 --ctr:1200px;
 --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础 reset ============ */
*,*::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:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
 outline:3px solid rgba(22,82,240,.35);outline-offset:2px;border-radius:8px;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:-.015em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
li{margin:0;}
strong{font-weight:700;}
/* ============ 容器 ============ */
.grid-container,
.container{
 width:100%;
 max-width:var(--ctr);
 margin:0 auto;
 padding-left:24px;
 padding-right:24px;
}
.section{padding:84px 0;}
.section--tight{padding:60px 0;}
.section--white{background:#fff;}
.section--band{
 background:linear-gradient(180deg,#eef4ff 0%,#f7faff 100%);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section--dark{
 background:radial-gradient(720px 320px at 12% 0%,rgba(22,82,240,.35),transparent 64%),#0b1830;
 color:#dce5f5;
}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:#93a6c4;}
.section-head{max-width:820px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.1vw,34px);}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
.section--dark .section-desc{color:#93a6c4;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:.06em;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--accent{color:#0a7c72;background:var(--accent-soft);}
.eyebrow--warn{color:#b85714;background:var(--warn-soft);}
/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
}
.site-header__inner{
 display:flex;align-items:center;justify-content:space-between;
 gap:24px;min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);}
.logo__mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,var(--brand) 0%,#3d7bff 60%,#12b3a6 130%);
 color:#fff;font-size:15px;
 box-shadow:0 10px 20px -12px rgba(22,82,240,.9);
}
.logo:hover{color:var(--brand);}
.nav{display:flex;align-items:center;gap:6px;}
.nav__link{
 position:relative;
 padding:9px 15px;border-radius:999px;
 font-size:15px;font-weight:600;color:var(--ink-2);
 transition:background-color .2s ease,color .2s ease;
}
.nav__link:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav__link.is-active{background:var(--brand-soft);color:var(--brand);}
.nav__link.is-active::after{
 content:"";position:absolute;left:50%;bottom:1px;
 width:18px;height:3px;border-radius:3px;background:var(--brand);
 transform:translateX(-50%);
}
.site-header__actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:12px;
 border:1px solid var(--line);background:#fff;color:var(--ink-2);
 align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;
 font-size:15px;font-weight:700;letter-spacing:.01em;
 border:1px solid transparent;cursor:pointer;
 transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.btn--primary{
 background:linear-gradient(135deg,var(--brand) 0%,#2f6dff 100%);
 color:#fff;box-shadow:0 16px 30px -16px rgba(22,82,240,.85);
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(22,82,240,.9);}
.btn--primary:active{transform:translateY(0);box-shadow:0 10px 20px -14px rgba(22,82,240,.9);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-xs);}
.btn--ghost:hover{color:var(--brand);border-color:#bdd0ff;transform:translateY(-2px);}
.btn--soft{background:var(--brand-soft);color:var(--brand-dark);}
.btn--soft:hover{background:#dbe7ff;color:var(--brand-dark);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--block{width:100%;}
/* ============ 标签 ============ */
.chip{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand-dark);
}
.chip--accent{background:var(--accent-soft);color:#0a7c72;}
.chip--warn{background:var(--warn-soft);color:#b85714;}
.chip--line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
/* ============ 分类页首屏 ============ */
.hero--cat{
 position:relative;
 padding:64px 0 68px;
 background:
 radial-gradient(880px 360px at 6% -16%,rgba(22,82,240,.14),transparent 62%),
 radial-gradient(720px 300px at 98% 6%,rgba(15,181,166,.14),transparent 60%),
 #ffffff;
 border-bottom:1px solid var(--line);
 overflow:hidden;
}
.hero__grid{align-items:center;}
.hero__title{
 font-size:clamp(27px,4.1vw,46px);
 letter-spacing:-.025em;
 line-height:1.24;
 margin:14px 0 0;
}
.hero__sub{
 margin-top:18px;
 font-size:16.5px;
 color:var(--ink-2);
 max-width:640px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero__note{
 margin-top:22px;font-size:13.5px;color:var(--muted);
 display:flex;align-items:center;gap:8px;
}
.hero__note i{color:var(--accent);}
/* 仪表盘面板 */
.panel{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-lg);
 padding:26px 26px 24px;
}
.panel__head{
 display:flex;align-items:center;justify-content:space-between;
 gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--line);
}
.panel__title{font-size:15.5px;font-weight:800;color:var(--ink);}
.panel__live{
 display:inline-flex;align-items:center;gap:6px;
 font-size:12.5px;font-weight:700;color:#0a7c72;
 background:var(--accent-soft);padding:4px 11px;border-radius:999px;
}
.panel__live i{font-size:8px;}
.panel__list{margin-top:8px;}
.panel__list li{
 display:flex;align-items:center;justify-content:space-between;
 gap:14px;padding:13px 0;border-bottom:1px solid var(--line);
 font-size:14.5px;color:var(--ink-2);
}
.panel__list li:last-child{border-bottom:0;}
.panel__list strong{font-size:15.5px;color:var(--ink);letter-spacing:-.01em;}
.panel__tiers{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px;}
.panel__bar{
 height:8px;border-radius:999px;background:#eaf0fb;overflow:hidden;margin-top:18px;
}
.panel__bar span{
 display:block;height:100%;border-radius:999px;
 background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%);
}
.panel__foot p{margin-top:10px;font-size:13px;color:var(--muted);}
/* 指标条 */
.stat-strip{
 margin-top:52px;
 display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
 background:var(--line);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);
}
.stat-strip__item{background:#fff;padding:20px 22px;}
.stat-strip__num{font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-.02em;}
.stat-strip__label{margin-top:4px;font-size:13.5px;color:var(--muted);}
/* ============ 画质档位卡 ============ */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.tier-card{
 position:relative;
 background:var(--card);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:26px 24px 24px;
 box-shadow:var(--shadow-sm);
 display:flex;flex-direction:column;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cadcfd;}
.tier-card--featured{
 border-color:#bcd0ff;
 box-shadow:0 26px 52px -30px rgba(22,82,240,.55);
 background:linear-gradient(180deg,#f7faff 0%,#ffffff 46%);
}
.tier-card__flag{
 position:absolute;top:18px;right:18px;
 font-size:12px;font-weight:700;color:#fff;
 background:linear-gradient(135deg,var(--brand) 0%,#3d7bff 100%);
 padding:4px 11px;border-radius:999px;
}
.tier-card__res{
 font-size:13px;font-weight:700;letter-spacing:.08em;
 color:var(--muted);text-transform:uppercase;
}
.tier-card__name{margin-top:8px;font-size:20px;}
.tier-card__desc{margin-top:12px;font-size:14.5px;color:var(--ink-2);}
.tier-card__list{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);flex:1;}
.tier-card__list li{
 position:relative;padding-left:22px;margin-bottom:10px;
 font-size:14px;color:var(--ink-2);
}
.tier-card__list li::before{
 content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;
 position:absolute;left:0;top:1px;color:var(--accent);font-size:13px;
}
.tier-card__foot{
 margin-top:18px;font-size:13px;color:var(--muted);
 background:var(--bg);border-radius:var(--radius-sm);padding:10px 12px;
}
/* ============ 深色指标看板 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.metric{
 background:rgba(255,255,255,.055);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius);
 padding:24px 22px;
 transition:background-color .22s ease,transform .22s ease,border-color .22s ease;
}
.metric:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);border-color:rgba(61,123,255,.6);}
.metric__num{font-size:30px;font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.2;}
.metric__num span{font-size:16px;font-weight:700;color:#8fb2ff;margin-left:3px;}
.metric__label{margin-top:8px;font-size:15px;font-weight:700;color:#dce5f5;}
.metric__note{margin-top:6px;font-size:13px;color:#93a6c4;line-height:1.7;}
/* ============ 对比 ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;}
.compare-col{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:28px 26px;box-shadow:var(--shadow-sm);
}
.compare-col--gain{
 border-color:#bcd0ff;
 background:linear-gradient(180deg,#f6f9ff 0%,#ffffff 52%);
 box-shadow:0 26px 54px -32px rgba(22,82,240,.5);
}
.compare-col__head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.compare-col__head h3{font-size:17.5px;}
.compare-col__head i{
 width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-size:15px;
}
.compare-col--gain .compare-col__head i{background:var(--accent-soft);color:#0a7c72;}
.compare-list{margin-top:18px;}
.compare-list li{
 display:flex;gap:12px;align-items:flex-start;
 padding:11px 0;font-size:14.5px;color:var(--ink-2);
 border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list i{color:var(--muted);margin-top:4px;font-size:13px;}
.compare-col--gain .compare-list i{color:var(--accent);}
.compare-note{
 margin-top:26px;background:#fff;border:1px solid var(--line);
 border-left:4px solid var(--brand);border-radius:var(--radius-sm);
 padding:18px 22px;font-size:14.5px;color:var(--ink-2);box-shadow:var(--shadow-xs);
}
/* ============ 场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.scene-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.scene-card__icon{
 width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-size:19px;margin-bottom:16px;
}
.scene-card h3{font-size:17.5px;}
.scene-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);}
.scene-card__meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px;padding-left:26px;}
.timeline::before{
 content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--brand) 0%,var(--accent) 100%);opacity:.28;
}
.timeline__item{position:relative;padding:0 0 28px 22px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
 content:"";position:absolute;left:-26px;top:6px;
 width:14px;height:14px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);
 box-shadow:0 0 0 4px rgba(22,82,240,.12);
}
.timeline__ver{
 display:inline-flex;align-items:center;gap:7px;
 font-size:12.5px;font-weight:700;color:var(--brand-dark);
 background:var(--brand-soft);padding:3px 11px;border-radius:999px;
}
.timeline__title{margin-top:9px;font-size:17px;}
.timeline__desc{margin-top:8px;font-size:14.5px;color:var(--ink-2);}
.milestone-wrap{display:grid;grid-template-columns:0.95fr 1.05fr;gap:40px;align-items:start;}
/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.news-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 24px 22px;box-shadow:var(--shadow-xs);
 display:flex;flex-direction:column;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cadcfd;}
.news-card__meta{
 display:flex;align-items:center;gap:10px;
 font-size:12.5px;color:var(--muted);margin-bottom:12px;
}
.news-card__meta span:first-child{
 background:var(--brand-soft);color:var(--brand-dark);
 padding:3px 10px;border-radius:999px;font-weight:700;
}
.news-card h3{font-size:17px;line-height:1.5;}
.news-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);flex:1;}
.news-card__more{margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand);}
/* ============ 平台保障 ============ */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.guarantee{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-xs);
 border-top:3px solid var(--brand);
}
.guarantee:nth-child(2){border-top-color:var(--accent);}
.guarantee:nth-child(3){border-top-color:var(--warn);}
.guarantee:nth-child(4){border-top-color:#7a61ff;}
.guarantee h3{font-size:16.5px;display:flex;align-items:center;gap:9px;}
.guarantee h3 i{color:var(--brand);font-size:15px;}
.guarantee p{margin-top:10px;font-size:14px;color:var(--ink-2);}
/* ============ FAQ ============ */
.faq{display:grid;gap:14px;}
.faq__item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item[open]{border-color:#bcd0ff;box-shadow:var(--shadow-sm);}
.faq__q{
 list-style:none;cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
 padding:19px 24px;font-size:16px;font-weight:700;color:var(--ink);
}
.faq__q::-webkit-details-marker{display:none;}
.faq__q::after{
 content:"\2b";font-weight:700;color:var(--brand);
 width:26px;height:26px;border-radius:50%;flex:0 0 26px;
 display:grid;place-items:center;background:var(--brand-soft);font-size:15px;
 transition:transform .2s ease;
}
.faq__item[open] .faq__q::after{content:"\2212";transform:rotate(180deg);}
.faq__a{
 padding:0 24px 22px;font-size:14.5px;color:var(--ink-2);
 border-top:1px dashed var(--line);margin-top:-1px;padding-top:16px;
}
/* ============ 转化表单 ============ */
.join-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:40px;align-items:start;}
.join-aside{
 background:linear-gradient(160deg,#0d2a6b 0%,#1652f0 58%,#0fb5a6 145%);
 color:#fff;border-radius:var(--radius-lg);padding:34px 30px;
 box-shadow:0 34px 70px -34px rgba(12,62,203,.75);
}
.join-aside h3{color:#fff;font-size:22px;}
.join-aside p{margin-top:14px;font-size:14.5px;color:rgba(255,255,255,.86);}
.join-aside ul{margin-top:22px;}
.join-aside li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:14.5px;color:rgba(255,255,255,.92);padding:8px 0;
}
.join-aside li i{color:#9ff3e8;margin-top:5px;font-size:12px;}
.join-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:30px 28px;box-shadow:var(--shadow);
}
.join-card h3{font-size:20px;}
.join-card > p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.field{margin-top:18px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-bottom:7px;}
.field input,.field select,.field textarea{
 width:100%;padding:12px 14px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:#fbfcfe;color:var(--ink);
 font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:none;border-color:var(--brand);background:#fff;
 box-shadow:0 0 0 4px rgba(22,82,240,.14);
}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);}
.form-tip{
 margin-top:14px;font-size:14px;font-weight:600;
 color:#0a7c72;background:var(--accent-soft);
 border-radius:var(--radius-sm);padding:12px 15px;
}
.form-tip[hidden]{display:none;}
/* ============ 页脚 ============ */
.site-footer{
 background:#fff;border-top:1px solid var(--line);
 padding:62px 0 26px;color:var(--ink-2);
}
.footer__brand p{margin-top:16px;font-size:14.5px;color:var(--muted);max-width:360px;}
.footer__social{display:flex;gap:10px;margin-top:20px;}
.footer__social a{
 width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand-dark);font-size:15px;
 transition:background-color .2s ease,transform .2s ease,color .2s ease;
}
.footer__social a:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.footer__col h4{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;}
.footer__col ul li{margin-bottom:10px;}
.footer__col ul a{font-size:14px;color:var(--muted);}
.footer__col ul a:hover{color:var(--brand);}
.footer__bottom{
 margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 font-size:13.5px;color:var(--muted);
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .section{padding:68px 0;}
 .hero--cat{padding:52px 0 56px;}
 .tier-grid{grid-template-columns:repeat(2,1fr);}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .guarantee-grid{grid-template-columns:repeat(2,1fr);}
 .stat-strip{grid-template-columns:repeat(2,1fr);}
 .milestone-wrap{grid-template-columns:1fr;gap:32px;}
 .join-wrap{grid-template-columns:1fr;gap:28px;}
 .hero__grid .hero__panel{margin-top:38px;}
}
@media (max-width:900px){
 .nav{
  position:absolute;top:72px;left:0;right:0;display:none;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:12px 18px 16px;box-shadow:var(--shadow);
 }
 .nav.is-open{display:flex;}
 .nav__link{padding:12px 14px;border-radius:12px;}
 .nav__link.is-active::after{display:none;}
 .nav-toggle{display:inline-flex;}
}
@media (max-width:768px){
 .section{padding:56px 0;}
 .grid-container,.container{padding-left:18px;padding-right:18px;}
 .hero__title{font-size:26px;}
 .compare-wrap{grid-template-columns:1fr;}
 .scene-grid{grid-template-columns:1fr;}
 .news-grid{grid-template-columns:1fr;}
 .footer__bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
 .tier-grid{grid-template-columns:1fr;}
 .metric-grid{grid-template-columns:1fr;}
 .guarantee-grid{grid-template-columns:1fr;}
 .stat-strip{grid-template-columns:1fr;}
 .hero__actions{flex-direction:column;align-items:stretch;}
 .hero__actions .btn{width:100%;}
 .site-header__actions .btn--primary{display:none;}
 .panel{padding:22px 20px;}
 .join-card,.join-aside{padding:24px 20px;}
 .faq__q{font-size:15px;padding:16px 18px;}
 .faq__a{padding:0 18px 18px;padding-top:14px;}
 .section-title{font-size:22px;}
}

/* roulang page: category2 */
:root{
 --brand:#1652f0;
 --brand-dark:#0c3ecb;
 --brand-soft:#e9f0ff;
 --accent:#0fb5a6;
 --accent-soft:#e3f8f5;
 --warn:#ff8a3d;
 --warn-soft:#fff1e6;
 --ink:#0d1b2e;
 --ink-2:#31415a;
 --muted:#6c7d95;
 --line:#e5ebf4;
 --bg:#f5f8fd;
 --card:#ffffff;
 --radius-xs:8px;
 --radius-sm:12px;
 --radius:16px;
 --radius-lg:24px;
 --shadow-xs:0 1px 2px rgba(13,27,46,.06);
 --shadow-sm:0 8px 20px -12px rgba(13,27,46,.22);
 --shadow:0 20px 44px -24px rgba(13,27,46,.30);
 --shadow-lg:0 34px 72px -34px rgba(13,27,46,.38);
 --ctr:1200px;
 --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::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:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;}
a:hover{color:var(--brand);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(22,82,240,.38);outline-offset:2px;border-radius:8px;}

/* ============ 容器 ============ */
.grid-container,
.container{
 width:100%;
 max-width:var(--ctr);
 margin-left:auto;
 margin-right:auto;
 padding-left:24px;
 padding-right:24px;
}
.section{padding:84px 0;}
.section--tight{padding:62px 0;}
.section--white{background:#fff;}
.section--band{
 background:linear-gradient(180deg,#eef4ff 0%,#f8fbff 100%);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{max-width:800px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.1vw,34px);line-height:1.3;color:var(--ink);letter-spacing:-.02em;}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:.06em;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--accent{color:#0a7c72;background:var(--accent-soft);}
.eyebrow--warn{color:#b85714;background:var(--warn-soft);}

/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.93);
 backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
}
.site-header__inner{
 display:flex;align-items:center;justify-content:space-between;
 gap:24px;min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);}
.logo__mark{
 width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,var(--brand) 0%,#3d7bff 60%,#12b3a6 130%);
 color:#fff;font-size:15px;
 box-shadow:0 10px 20px -12px rgba(22,82,240,.9);
}
.logo:hover{color:var(--brand);}
.nav{display:flex;align-items:center;gap:6px;}
.nav__link{
 position:relative;
 padding:9px 15px;border-radius:999px;
 font-size:15px;font-weight:600;color:var(--ink-2);
 transition:background-color .2s ease,color .2s ease;
}
.nav__link:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav__link.is-active{background:var(--brand-soft);color:var(--brand);}
.nav__link.is-active::after{
 content:"";position:absolute;left:50%;bottom:1px;
 width:18px;height:3px;border-radius:3px;background:var(--brand);
 transform:translateX(-50%);
}
.site-header__actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:12px;
 border:1px solid var(--line);background:#fff;color:var(--ink-2);
 align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;
 font-size:15px;font-weight:700;letter-spacing:.01em;
 border:1px solid transparent;cursor:pointer;
 transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.btn--primary{
 background:linear-gradient(135deg,var(--brand) 0%,#2f6dff 100%);
 color:#fff;box-shadow:0 16px 30px -16px rgba(22,82,240,.85);
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(22,82,240,.9);}
.btn--primary:active{transform:translateY(0);box-shadow:0 10px 20px -14px rgba(22,82,240,.9);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-xs);}
.btn--ghost:hover{color:var(--brand);border-color:#bdd0ff;transform:translateY(-2px);}
.btn--soft{background:var(--brand-soft);color:var(--brand-dark);}
.btn--soft:hover{background:#dbe7ff;color:var(--brand-dark);}
.btn--dark{background:#0b1830;color:#fff;}
.btn--dark:hover{background:#16274a;color:#fff;transform:translateY(-2px);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.chip{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand-dark);
}
.chip--accent{background:var(--accent-soft);color:#0a7c72;}
.chip--warn{background:var(--warn-soft);color:#b85714;}
.chip--line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* ============ 通用卡片 ============ */
.card{
 background:var(--card);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 padding:26px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6e2fb;}
.card__icon{
 width:48px;height:48px;border-radius:14px;
 display:grid;place-items:center;font-size:19px;
 background:var(--brand-soft);color:var(--brand);
 margin-bottom:18px;
}
.card__icon--accent{background:var(--accent-soft);color:#0a7c72;}
.card__icon--warn{background:var(--warn-soft);color:#b85714;}
.card h3{font-size:18.5px;line-height:1.45;color:var(--ink);letter-spacing:-.01em;}
.card p{margin-top:10px;color:var(--muted);font-size:14.8px;line-height:1.85;}
.card__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ============ Hero ============ */
.hero{
 position:relative;
 padding:64px 0 76px;
 background:
 radial-gradient(880px 360px at 6% -16%,rgba(22,82,240,.14),transparent 62%),
 radial-gradient(720px 320px at 98% 2%,rgba(15,181,166,.13),transparent 60%),
 #ffffff;
 border-bottom:1px solid var(--line);
 overflow:hidden;
}
.hero__grid{
 display:grid;
 grid-template-columns:1.06fr .94fr;
 gap:48px;
 align-items:center;
}
.hero h1{
 font-size:clamp(27px,3.6vw,43px);
 line-height:1.24;
 letter-spacing:-.026em;
 margin-top:14px;
 color:var(--ink);
}
.hero__sub{
 margin-top:18px;
 font-size:16.5px;
 line-height:1.9;
 color:var(--ink-2);
 max-width:600px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__points{
 display:flex;flex-wrap:wrap;gap:12px 26px;
 margin-top:30px;padding-top:24px;border-top:1px dashed var(--line);
}
.hero__points li{
 display:flex;align-items:center;gap:8px;
 font-size:14.5px;color:var(--ink-2);font-weight:600;
}
.hero__points i{color:var(--accent);font-size:13px;}

/* ============ 直播预告卡 ============ */
.preview{
 position:relative;
 background:#0b1830;
 border-radius:var(--radius-lg);
 padding:20px;
 color:#dce5f5;
 box-shadow:var(--shadow-lg);
 overflow:hidden;
}
.preview::after{
 content:"";
 position:absolute;width:280px;height:280px;right:-120px;top:-140px;
 background:radial-gradient(circle,rgba(22,82,240,.55),transparent 68%);
 pointer-events:none;
}
.preview__cover{
 position:relative;
 height:176px;
 border-radius:var(--radius);
 background:linear-gradient(135deg,#12359c 0%,#1652f0 46%,#0fb5a6 132%);
 overflow:hidden;
 padding:18px;
 display:flex;flex-direction:column;justify-content:space-between;
 z-index:1;
}
.preview__cover::before{
 content:"";
 position:absolute;inset:0;
 background:
  repeating-linear-gradient(115deg,rgba(255,255,255,.08) 0 2px,transparent 2px 22px);
 opacity:.6;
}
.preview__live{
 position:relative;
 display:inline-flex;align-items:center;gap:8px;
 align-self:flex-start;
 background:rgba(11,24,48,.55);
 border:1px solid rgba(255,255,255,.24);
 color:#fff;font-size:12.5px;font-weight:700;
 padding:6px 13px;border-radius:999px;
 backdrop-filter:blur(6px);
}
.preview__dot{
 width:8px;height:8px;border-radius:50%;background:#ff5a5a;
 box-shadow:0 0 0 0 rgba(255,90,90,.7);
 animation:pulse 1.9s infinite;
}
@keyframes pulse{
 0%{box-shadow:0 0 0 0 rgba(255,90,90,.7);}
 70%{box-shadow:0 0 0 12px rgba(255,90,90,0);}
 100%{box-shadow:0 0 0 0 rgba(255,90,90,0);}
}
.preview__coverText{position:relative;}
.preview__coverText strong{
 display:block;color:#fff;font-size:19px;line-height:1.4;letter-spacing:-.01em;
}
.preview__coverText span{display:block;margin-top:6px;color:rgba(255,255,255,.82);font-size:13.5px;}
.preview__body{position:relative;z-index:1;padding:18px 4px 4px;}
.countdown{
 display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
}
.countdown__item{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-sm);
 padding:11px 6px;text-align:center;
}
.countdown__num{font-size:23px;font-weight:800;color:#fff;letter-spacing:.02em;line-height:1.2;font-variant-numeric:tabular-nums;}
.countdown__label{font-size:12px;color:#93a6c4;margin-top:3px;}
.preview__note{
 margin-top:16px;font-size:13px;color:#8fa3c2;line-height:1.75;
}
.preview__actions{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.preview__state{
 margin-top:12px;font-size:13.5px;color:#7ce0d4;min-height:20px;
}

/* ============ 指标看板 ============ */
.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.metric{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px;
 box-shadow:var(--shadow-xs);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#cfdefb;}
.metric__top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.metric__label{font-size:14px;color:var(--muted);font-weight:600;}
.metric__value{
 margin-top:12px;
 font-size:clamp(28px,3vw,36px);
 font-weight:800;
 letter-spacing:-.03em;
 color:var(--ink);
 line-height:1.1;
 font-variant-numeric:tabular-nums;
}
.metric__value small{font-size:15px;font-weight:700;color:var(--brand);margin-left:4px;letter-spacing:0;}
.metric__foot{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.metric__bar{height:6px;border-radius:999px;background:#eef3fb;margin-top:14px;overflow:hidden;}
.metric__bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));}

/* ============ 服务矩阵 ============ */
.matrix-card{height:100%;display:flex;flex-direction:column;}
.matrix-card p{flex:1;}

/* ============ 结果对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
 border-radius:var(--radius-lg);
 padding:30px;
 border:1px solid var(--line);
 background:#fff;
 box-shadow:var(--shadow-xs);
}
.compare-col--on{
 border-color:#c9daff;
 background:linear-gradient(180deg,#f4f8ff 0%,#ffffff 62%);
 box-shadow:var(--shadow-sm);
}
.compare-col h3{
 display:flex;align-items:center;gap:10px;
 font-size:19px;color:var(--ink);
}
.compare-col h3 i{font-size:15px;}
.compare-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.compare-list li{
 display:flex;gap:12px;align-items:flex-start;
 font-size:14.8px;line-height:1.8;color:var(--ink-2);
}
.compare-list li i{margin-top:5px;font-size:13px;flex:0 0 auto;}
.compare-list li i.ok{color:var(--accent);}
.compare-list li i.no{color:#b6c2d4;}
.compare-col--off .compare-list li{color:var(--muted);}

/* ============ 里程碑 ============ */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
 content:"";position:absolute;left:9px;top:6px;bottom:6px;
 width:2px;background:linear-gradient(180deg,var(--brand),var(--accent));
 opacity:.32;border-radius:2px;
}
.timeline__item{position:relative;padding-bottom:32px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
 content:"";position:absolute;left:-33px;top:6px;
 width:20px;height:20px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);
 box-shadow:0 0 0 5px rgba(22,82,240,.1);
}
.timeline__date{
 display:inline-flex;align-items:center;gap:7px;
 font-size:13px;font-weight:700;color:var(--brand);
 background:var(--brand-soft);
 padding:4px 12px;border-radius:999px;
}
.timeline__item h3{margin-top:12px;font-size:17.5px;color:var(--ink);}
.timeline__item p{margin-top:8px;font-size:14.8px;color:var(--muted);line-height:1.85;max-width:640px;}

/* ============ 资讯列表 ============ */
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
 display:grid;
 grid-template-columns:112px 1fr auto;
 gap:22px;align-items:center;
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px 26px;
 box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .22s ease,border-color .2s ease;
}
.news-item:hover{transform:translateX(4px);box-shadow:var(--shadow-sm);border-color:#cfdefb;}
.news-item__date{
 font-size:13.5px;font-weight:700;color:var(--muted);
 letter-spacing:.02em;
}
.news-item__body h3{font-size:17px;color:var(--ink);line-height:1.5;}
.news-item__body p{margin-top:8px;font-size:14.4px;color:var(--muted);line-height:1.8;}
.news-item__meta{display:flex;align-items:center;gap:12px;}
.news-item__more{
 font-size:14px;font-weight:700;color:var(--brand);
 display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
}
.news-item__more:hover{gap:11px;}

/* ============ 平台保障 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.guard{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-xs);
 position:relative;overflow:hidden;
 transition:transform .22s ease,box-shadow .22s ease;
}
.guard:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);}
.guard::before{
 content:"";position:absolute;left:0;top:0;height:3px;width:100%;
 background:linear-gradient(90deg,var(--brand),var(--accent));
 opacity:0;transition:opacity .24s ease;
}
.guard:hover::before{opacity:1;}
.guard i{font-size:20px;color:var(--brand);}
.guard h3{margin-top:16px;font-size:17px;color:var(--ink);}
.guard p{margin-top:9px;font-size:14.4px;color:var(--muted);line-height:1.82;}

/* ============ 快速解答 ============ */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.qa-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;display:flex;gap:16px;align-items:flex-start;
 box-shadow:var(--shadow-xs);transition:border-color .2s ease,box-shadow .22s ease;
}
.qa-card:hover{border-color:#cfdefb;box-shadow:var(--shadow-sm);}
.qa-card__q{
 flex:0 0 auto;width:34px;height:34px;border-radius:11px;
 display:grid;place-items:center;font-weight:800;font-size:14px;
 background:var(--brand-soft);color:var(--brand);
}
.qa-card h3{font-size:16.5px;color:var(--ink);line-height:1.5;}
.qa-card p{margin-top:8px;font-size:14.4px;color:var(--muted);line-height:1.82;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 margin-bottom:14px;box-shadow:var(--shadow-xs);
 overflow:hidden;transition:border-color .2s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:#c9daff;box-shadow:var(--shadow-sm);}
.faq-item summary{
 list-style:none;cursor:pointer;
 padding:22px 26px;
 font-size:16.5px;font-weight:700;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
 font-size:13px;color:var(--brand);
 width:30px;height:30px;border-radius:50%;
 background:var(--brand-soft);
 display:grid;place-items:center;flex:0 0 auto;
 transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"\f068";transform:rotate(180deg);}
.faq-item .faq-answer{
 padding:0 26px 24px;
 font-size:15px;color:var(--muted);line-height:1.9;
 border-top:1px solid var(--line);
 padding-top:18px;margin:0 26px 0;
 padding-left:0;padding-right:0;
}

/* ============ 转化表单 ============ */
.join-card{
 display:grid;grid-template-columns:1fr 1fr;gap:0;
 border-radius:var(--radius-lg);overflow:hidden;
 border:1px solid var(--line);background:#fff;
 box-shadow:var(--shadow);
}
.join-intro{
 padding:44px 40px;
 background:linear-gradient(150deg,#0c3ecb 0%,#1652f0 52%,#0fb5a6 138%);
 color:#fff;
}
.join-intro h2{font-size:clamp(22px,2.6vw,29px);line-height:1.34;letter-spacing:-.02em;}
.join-intro p{margin-top:16px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.88);}
.join-intro ul{margin-top:26px;display:flex;flex-direction:column;gap:13px;}
.join-intro li{display:flex;gap:11px;align-items:flex-start;font-size:14.8px;color:rgba(255,255,255,.94);}
.join-intro li i{margin-top:5px;font-size:12px;color:#a9f0e7;}
.join-form{padding:44px 40px;}
.field{margin-bottom:18px;}
.field label{
 display:block;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-bottom:9px;
}
.field input,
.field select,
.field textarea{
 width:100%;
 padding:13px 16px;
 border:1px solid var(--line);
 border-radius:var(--radius-sm);
 background:#fbfcff;
 color:var(--ink);
 font-size:14.8px;
 line-height:1.6;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
 appearance:none;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,
.field select:focus,
.field textarea:focus{
 outline:none;
 border-color:var(--brand);
 background:#fff;
 box-shadow:0 0 0 4px rgba(22,82,240,.12);
}
.field input::placeholder,
.field textarea::placeholder{color:#9aa9be;}
.form-hint{
 margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.75;
}
.form-state{
 margin-top:14px;font-size:14px;font-weight:600;color:#0a7c72;min-height:22px;
}

/* ============ 页脚 ============ */
.site-footer{
 background:#0b1830;
 color:#c3d0e6;
 padding:64px 0 26px;
}
.site-footer .logo{color:#fff;}
.site-footer .logo__text{color:#fff;}
.footer__brand p{
 margin-top:16px;color:#8fa3c2;font-size:14.5px;line-height:1.9;max-width:420px;
}
.footer__social{display:flex;gap:10px;margin-top:20px;}
.footer__social a{
 width:38px;height:38px;border-radius:11px;
 display:grid;place-items:center;
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.1);
 color:#c3d0e6;font-size:15px;
}
.footer__social a:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.footer__col h4{color:#fff;font-size:15.5px;margin-bottom:16px;letter-spacing:.02em;}
.footer__col ul{display:flex;flex-direction:column;gap:11px;}
.footer__col a{color:#93a6c4;font-size:14.5px;}
.footer__col a:hover{color:#fff;}
.footer__bottom{
 margin-top:44px;padding-top:22px;
 border-top:1px solid rgba(255,255,255,.1);
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
 color:#7f93b4;font-size:13.5px;
}
.footer__bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero__grid{grid-template-columns:1fr;gap:38px;}
 .hero__sub{max-width:none;}
 .metrics-grid{grid-template-columns:repeat(2,1fr);}
 .guard-grid{grid-template-columns:repeat(2,1fr);}
 .join-card{grid-template-columns:1fr;}
 .join-intro,.join-form{padding:36px 30px;}
 .news-item{grid-template-columns:96px 1fr;row-gap:14px;}
 .news-item__meta{grid-column:1 / -1;}
}
@media (max-width:860px){
 .nav{
  position:absolute;top:72px;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  flex-direction:column;align-items:stretch;
  padding:14px 24px 20px;gap:6px;
  box-shadow:var(--shadow);
  display:none;
 }
 .nav.is-open{display:flex;}
 .nav__link{padding:12px 14px;border-radius:var(--radius-sm);}
 .nav__link.is-active::after{display:none;}
 .nav-toggle{display:inline-flex;}
 .compare-grid{grid-template-columns:1fr;}
 .qa-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
 .section{padding:60px 0;}
 .section--tight{padding:48px 0;}
 .grid-container,.container{padding-left:18px;padding-right:18px;}
 .hero{padding:46px 0 58px;}
 .metrics-grid{grid-template-columns:1fr;}
 .guard-grid{grid-template-columns:1fr;}
 .compare-col{padding:24px;}
 .card{padding:22px;}
 .join-intro,.join-form{padding:30px 22px;}
 .footer__bottom{flex-direction:column;}
 .site-header__actions .btn{display:none;}
}
@media (max-width:520px){
 .logo{font-size:17px;}
 .hero h1{font-size:26px;}
 .hero__actions .btn{width:100%;}
 .countdown{grid-template-columns:repeat(2,1fr);}
 .news-item{grid-template-columns:1fr;padding:20px;}
 .news-item__date{font-size:13px;}
 .timeline{padding-left:26px;}
 .timeline__item::before{left:-25px;width:16px;height:16px;}
 .faq-item summary{padding:18px 18px;font-size:15.5px;}
 .faq-item .faq-answer{margin:0 18px;}
}