/* roulang page: index */
:root{
  --ink:#0e1a2b;
  --sub:#5a6b83;
  --bg:#f5f8fd;
  --card:#ffffff;
  --line:#e3eaf5;
  --brand:#1c5cf0;
  --brand-d:#12326b;
  --tint:#eaf1ff;
  --r:16px;
  --sh:0 10px 28px rgba(16,42,86,.08);
  --sp:clamp(48px,7vw,86px);
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.rstc-wrap{width:min(1160px,92%);margin:0 auto}

/* 顶栏 */
.rstc-top{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.rstc-topbar{display:flex;align-items:center;gap:18px;min-height:68px}
.rstc-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.6px;white-space:nowrap;min-height:44px}
.rstc-logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#5b8dff);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800;flex:none}
.rstc-nav{display:flex;gap:4px;margin-left:auto}
.rstc-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 13px;border-radius:10px;font-size:14px;color:var(--sub);transition:color .2s,background .2s}
.rstc-nav a:hover{color:var(--brand);background:var(--tint)}
.rstc-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:12px;background:var(--brand);color:#fff;font-weight:600;font-size:15px;box-shadow:0 8px 20px rgba(28,92,240,.24);transition:transform .2s,background .2s,box-shadow .2s;border:1px solid transparent;cursor:pointer}
.rstc-btn:hover{transform:translateY(-2px);background:#1749c4;box-shadow:0 12px 26px rgba(28,92,240,.32)}
.rstc-btn-sm{min-height:42px;padding:0 16px;font-size:14px;border-radius:10px}
.rstc-btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);box-shadow:none;color:#fff}
.rstc-btn-ghost:hover{background:rgba(255,255,255,.22);box-shadow:none}
.rstc-btn-light{background:#fff;color:var(--brand-d);box-shadow:0 10px 24px rgba(4,16,38,.18)}
.rstc-btn-light:hover{background:#eaf1ff;color:var(--brand-d)}

/* 首屏 */
.rstc-hero{position:relative;color:#fff;background:#0b1a33 url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.rstc-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgba(8,21,42,.94) 0%,rgba(8,21,42,.80) 48%,rgba(8,21,42,.46) 100%)}
.rstc-heroin{position:relative;padding:clamp(56px,8vw,98px) 0 clamp(46px,6vw,70px)}
.rstc-eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:#a9c8ff;border:1px solid rgba(169,200,255,.4);padding:5px 14px;border-radius:999px}
.rstc-h1{font-size:clamp(34px,5.2vw,58px);line-height:1.15;font-weight:800;letter-spacing:2px;margin:18px 0 16px}
.rstc-hl{color:#8ab6ff}
.rstc-herosub{font-size:clamp(16px,2vw,21px);font-weight:600;color:#e8f0ff;margin-bottom:14px}
.rstc-herolead{max-width:680px;color:#c3d4ea;font-size:15.5px;line-height:1.92}
.rstc-heroact{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.rstc-points{display:flex;flex-wrap:wrap;gap:16px 40px;margin-top:42px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.rstc-points li{display:flex;flex-direction:column;gap:2px;font-size:13.5px;color:#cfe0f6}
.rstc-points strong{font-size:15px;color:#fff;font-weight:700}

/* 区块 */
.rstc-sec{padding:var(--sp) 0}
.rstc-sec-alt{background:#fff}
.rstc-sechd{max-width:760px;margin-bottom:36px}
.rstc-kicker{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);background:var(--tint);padding:4px 13px;border-radius:999px;margin-bottom:14px;letter-spacing:1px}
.rstc-sechd h2{font-size:clamp(23px,3vw,32px);line-height:1.36;font-weight:800;letter-spacing:.5px}
.rstc-lead{margin-top:14px;color:var(--sub);font-size:15px;line-height:1.9}

/* 卡片 */
.rstc-grid{display:grid;gap:22px;grid-template-columns:repeat(3,1fr)}
.rstc-grid-4{grid-template-columns:repeat(4,1fr)}
.rstc-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:transform .22s,box-shadow .22s}
.rstc-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(16,42,86,.14)}
.rstc-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#dce7f8}
.rstc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.rstc-card:hover .rstc-thumb img{transform:scale(1.05)}
.rstc-tag{position:absolute;top:12px;left:12px;background:rgba(12,30,60,.78);color:#fff;font-size:12px;letter-spacing:.5px;padding:4px 11px;border-radius:999px}
.rstc-body{display:flex;flex-direction:column;gap:8px;padding:16px 18px 20px;flex:1}
.rstc-body h3{font-size:16.5px;font-weight:700}
.rstc-body p{font-size:14px;line-height:1.75;color:var(--sub)}

/* 编号说明条 */
.rstc-num{display:grid;gap:14px}
.rstc-num li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:18px 20px;box-shadow:var(--sh)}
.rstc-num strong{display:block;font-size:16px;margin-bottom:5px}
.rstc-num span{font-size:14.5px;color:var(--sub);line-height:1.8}

/* 流程 */
.rstc-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rstc-flow li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;box-shadow:var(--sh)}
.rstc-step{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--tint);color:var(--brand);font-weight:800;font-size:14px;margin-bottom:12px}
.rstc-flow h3{font-size:16px;font-weight:700;margin-bottom:6px}
.rstc-flow p{font-size:14px;color:var(--sub);line-height:1.75}

/* 赛程 */
.rstc-sched{display:grid;gap:12px}
.rstc-sched li{display:grid;grid-template-columns:170px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 20px;box-shadow:var(--sh);transition:border-color .2s}
.rstc-sched li:hover{border-color:#bcd3ff}
.rstc-sched time{font-weight:700;font-size:14.5px;color:var(--brand)}
.rstc-sched em{font-style:normal;font-size:15px;color:var(--ink)}
.rstc-chip{display:inline-block;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--tint);color:var(--brand-d);white-space:nowrap}
.rstc-chip-warm{background:#fff2e3;color:#a95a08}

/* 资讯 */
.rstc-news{display:grid;gap:12px}
.rstc-news li{display:flex;justify-content:space-between;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;box-shadow:var(--sh);transition:border-color .2s,transform .2s}
.rstc-news li:hover{border-color:#bcd3ff;transform:translateX(3px)}
.rstc-news span{font-size:15px}
.rstc-news em{font-style:normal;font-size:13px;color:#8595ab;white-space:nowrap}

/* 问答 */
.rstc-faq{display:grid;gap:12px}
.rstc-faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px;box-shadow:var(--sh)}
.rstc-faq summary{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:52px;padding:12px 0;font-size:15.5px;font-weight:700;cursor:pointer;list-style:none}
.rstc-faq summary::-webkit-details-marker{display:none}
.rstc-faq summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:700;line-height:1}
.rstc-faq details[open] summary::after{content:"−"}
.rstc-faq p{padding:0 0 18px;font-size:14.5px;line-height:1.88;color:var(--sub)}

/* 保障 */
.rstc-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rstc-badges li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:var(--sh)}
.rstc-badges strong{display:block;font-size:15.5px;margin-bottom:6px}
.rstc-badges span{font-size:13.8px;line-height:1.72;color:var(--sub)}

/* 收口 */
.rstc-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:clamp(30px,5vw,56px);border-radius:22px;background:linear-gradient(118deg,#12326b,#1c5cf0);color:#fff;box-shadow:0 22px 46px rgba(18,54,118,.28)}
.rstc-cta h2{font-size:clamp(22px,3vw,31px);font-weight:800;line-height:1.35}
.rstc-cta p{margin-top:10px;max-width:600px;font-size:15px;line-height:1.88;color:#cfe0ff}

/* 页脚 */
.rstc-foot{margin-top:var(--sp);background:#0d1b31;color:#9fb2cc;padding-top:54px}
.rstc-footgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:38px}
.rstc-foot h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:12px}
.rstc-foot p{font-size:14px;line-height:1.85;color:#8fa3bf;max-width:320px}
.rstc-foot li a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;color:#9fb2cc;transition:color .2s}
.rstc-foot li a:hover{color:#fff}
.rstc-copy{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;color:#7d90ab}

/* 响应式 */
@media (max-width:1024px){
  .rstc-grid,.rstc-grid-4{grid-template-columns:repeat(2,1fr)}
  .rstc-flow{grid-template-columns:repeat(2,1fr)}
  .rstc-badges{grid-template-columns:repeat(2,1fr)}
  .rstc-footgrid{grid-template-columns:1fr 1fr}
  .rstc-sched li{grid-template-columns:150px 1fr auto}
}
@media (max-width:768px){
  .rstc-topbar{flex-wrap:wrap;gap:10px;padding:10px 0}
  .rstc-nav{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px}
  .rstc-nav a{white-space:nowrap;padding:0 12px}
  .rstc-topbar>.rstc-btn{margin-left:auto}
  .rstc-sched li{grid-template-columns:1fr;gap:4px;padding:16px 18px}
  .rstc-sched time{font-size:14px}
  .rstc-cta{flex-direction:column;align-items:flex-start}
  .rstc-herolead{font-size:15px}
}
@media (max-width:520px){
  .rstc-grid,.rstc-grid-4,.rstc-flow,.rstc-badges{grid-template-columns:1fr}
  .rstc-footgrid{grid-template-columns:1fr;gap:18px}
  .rstc-points{gap:14px 26px}
  .rstc-news li{flex-direction:column;align-items:flex-start;gap:4px}
  .rstc-h1{letter-spacing:1px}
}