/* 91每日大赛 —— styles.css（www.91mrdsw.cloud）
   明亮日常社区风 · 暖白米色底 · 活力橙主色
*/
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);
  line-height:1.6;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
:root{
  --bg:#faf7f2;--card:#ffffff;--ink:#1a1a2e;--muted:#6b6b7a;
  --line:#e8e4dc;--sub:#f2efe8;
  --brand:#ff5a36;--brand-dark:#e64a28;
  --accent:#2d5ff4;--green:#00b894;--yellow:#fdcb6e;--purple:#a29bfe;--blue:#74b9ff;--pink:#fd79a8;
  --shadow:0 2px 12px rgba(26,26,46,.06),0 8px 24px rgba(26,26,46,.04);
  --radius:12px;--wrap:1200px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;font-weight:700}
h1{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.025em}
h2{font-size:clamp(22px,2.4vw,32px);letter-spacing:-.015em}
h3{font-size:clamp(18px,2vw,26px)}
h4{font-size:17px}
p{color:var(--ink)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* —— Ticker —— */
.ticker{background:#1a1a2e;color:#fff;font-size:14px}
.ticker .wrap{display:flex;align-items:center;gap:20px;min-height:40px}
.ticker .live{display:flex;align-items:center;gap:6px;color:var(--yellow);font-weight:600;white-space:nowrap}
.ticker .live i{width:8px;height:8px;border-radius:50%;background:var(--brand);display:inline-block;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.ticker ul{display:flex;gap:28px;list-style:none;flex:1;overflow:hidden}
.ticker li{display:flex;align-items:center;gap:10px;white-space:nowrap}
.ticker a{color:#fff}
.ticker a:hover{color:var(--yellow)}
.ticker time{color:#888;font-size:12px}
.ticker .more{color:var(--yellow);font-weight:600;white-space:nowrap}

/* —— Header —— */
.site-head{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(8px)}
.site-head .wrap{display:flex;align-items:center;gap:24px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--brand);color:#fff;font-weight:800;font-size:18px;display:grid;place-items:center;font-family:Helvetica,Arial,sans-serif;letter-spacing:-.03em}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-txt b{font-size:16px;font-weight:700}
.brand-txt span{font-size:10px;color:var(--muted);letter-spacing:.12em;font-weight:500}
.mainnav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
.mainnav a{padding:8px 14px;border-radius:8px;color:var(--ink);font-size:14px;font-weight:500;white-space:nowrap}
.mainnav a:hover{background:var(--sub);color:var(--brand)}
.mainnav a.on{background:var(--brand);color:#fff}
.nav-cta{background:var(--brand);color:#fff;padding:10px 20px;border-radius:10px;font-weight:600;font-size:14px;white-space:nowrap;transition:background .2s}
.nav-cta:hover{background:var(--brand-dark);color:#fff}

/* —— Hero —— */
.hero{padding:72px 0 56px}
.hero.slim{padding:48px 0 32px}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero .eyebrow{display:inline-block;background:#fff3f0;color:var(--brand);padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero .lead{font-size:17px;color:var(--muted);margin:20px 0 28px;max-width:560px}
.hero-art img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:cover;width:100%}
.hero-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:24px;font-size:14px;color:var(--muted)}
.hero-meta b{color:var(--ink)}

/* —— Buttons —— */
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{padding:12px 24px;border-radius:10px;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;transition:all .2s;text-decoration:none}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--sub);color:var(--brand);border-color:var(--brand)}

/* —— Stats —— */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0 40px}
.stat{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:clamp(22px,2.4vw,32px);font-weight:800;color:var(--brand);letter-spacing:-.02em}
.stat span{font-size:13px;color:var(--muted);margin-top:6px;display:block}

/* —— Section head —— */
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px}
.sec-head .eyebrow{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.sec-head h2{margin-bottom:6px}
.sec-head p{color:var(--muted);font-size:14px}
.sec-head .more{font-weight:600;font-size:14px;white-space:nowrap}

/* —— Breadcrumb —— */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:24px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span[aria-current="page"]{color:var(--ink);font-weight:500}
.crumb .sep{color:#ccc}

/* —— Today card —— */
.today{padding:32px 0}
.today-card{background:linear-gradient(135deg,#fff3f0 0%,#fff 100%);border-radius:16px;padding:32px;margin-top:12px;border:2px solid var(--brand);box-shadow:var(--shadow)}
.today-num{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:.12em}
.today-card h3{font-size:clamp(22px,2.6vw,34px);margin:8px 0 12px;letter-spacing:-.02em}
.today-card p{color:var(--muted);margin-bottom:16px}
.today-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:14px;color:var(--muted);margin-bottom:20px}

/* —— Category grid —— */
.cats{padding:40px 0}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s}
.cat-card:hover{transform:translateY(-3px)}
.cat-img img{aspect-ratio:4/3;object-fit:cover;width:100%}
.cat-body{padding:16px}
.cat-tag{display:inline-block;background:var(--tag,#eee);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:14px;margin-bottom:10px}
.cat-body h4{font-size:16px;margin-bottom:6px}
.cat-body p{color:var(--muted);font-size:13px}

/* —— Steps —— */
.steps{padding:40px 0}
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.step-list>li{background:#fff;border-radius:var(--radius);padding:28px;list-style:none;box-shadow:var(--shadow);position:relative}
.step-list>li b{font-size:20px;color:var(--brand);display:block;margin-bottom:10px}
.step-list.big>li{display:flex;gap:20px;padding:24px}
.step-list.big>li .num{width:48px;height:48px;border-radius:12px;background:var(--brand);color:#fff;font-size:22px;font-weight:800;display:grid;place-items:center;flex-shrink:0}
.step-list.big>li b{color:var(--ink)}
.step-list.big>li p{color:var(--muted);margin-top:8px}

/* —— Timeline —— */
.timeline{padding:40px 0}
.tl{list-style:none;border-left:3px solid var(--line);margin-top:24px;padding-left:28px}
.tl li{margin-bottom:28px;position:relative}
.tl li::before{content:"";width:14px;height:14px;border-radius:50%;background:var(--brand);position:absolute;left:-35px;top:6px;border:3px solid var(--bg)}
.tl-year{display:inline-block;background:var(--brand);color:#fff;font-size:13px;font-weight:700;padding:4px 12px;border-radius:14px;margin-bottom:8px}
.tl h4{margin-bottom:6px}
.tl p{color:var(--muted)}
.tl.big li{margin-bottom:32px}

/* —— Ticker grid —— */
.t-grid,.rev-grid,.camp-grid,.w-grid,.ch-grid,.sk-grid,.n-grid{display:grid;gap:16px}
.t-grid{grid-template-columns:repeat(3,1fr)}
.rev-grid,.camp-grid{grid-template-columns:repeat(3,1fr)}
.w-grid,.ch-grid,.sk-grid{grid-template-columns:repeat(3,1fr)}
.n-grid{grid-template-columns:repeat(2,1fr)}
.tc{background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);display:block;color:inherit;transition:transform .2s;border-left:4px solid var(--c,#ccc)}
.tc:hover{transform:translateY(-2px)}
.tc.live{background:#fff8f6;border-color:var(--brand)}
.t-no{font-size:13px;font-weight:700;color:var(--brand)}
.t-date{font-size:12px;color:var(--muted);display:block;margin-top:2px}
.tc h4{font-size:15px;margin:8px 0}
.t-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:8px}
.t-status{font-weight:600;color:var(--brand)}
.t-status.live-dot::before{content:"● ";animation:pulse 1.5s infinite}

/* —— Reverse / Campus / Workshop / Champion / Skill / News cards —— */
.rev-card,.w-card,.ch-card,.sk-card,.n-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}
.rev-card:hover,.w-card:hover,.ch-card:hover,.sk-card:hover,.n-card:hover{transform:translateY(-2px)}
.rev-no{font-size:14px;font-weight:700;color:var(--brand);padding:14px 16px 2px;display:block}
.rev-card time{font-size:12px;color:var(--muted);padding:0 16px;display:block}
.rev-card h4{font-size:16px;margin:6px 16px 4px}
.rev-card p{color:var(--muted);font-size:13px;padding:0 16px}
.rev-img img{aspect-ratio:4/3;object-fit:cover;width:100%;padding:12px 16px}
.rev-status{display:block;background:var(--sub);color:var(--muted);font-size:12px;padding:6px 16px;border-top:1px solid var(--line)}

.w-img img,.ch-img img,.sk-img img{aspect-ratio:4/3;object-fit:cover;width:100%}
.w-body,.ch-body,.sk-body{padding:14px 16px}
.w-tag,.ch-tag,.sk-tag{font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.04em}
.w-card h4,.ch-card h4,.sk-card h4{font-size:15px;margin:6px 0 4px}
.w-card p,.ch-card p,.sk-card p{color:var(--muted);font-size:13px}
.w-meta,.ch-card time,.sk-card time{color:var(--muted);font-size:12px;margin-top:8px;display:flex;justify-content:space-between}

.camp-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:block;color:inherit;transition:transform .2s}
.camp-card:hover{transform:translateY(-2px)}
.camp-img img{aspect-ratio:4/3;object-fit:cover;width:100%}
.camp-card h4{padding:14px 16px 4px;font-size:16px}
.camp-card time{display:block;padding:0 16px;font-size:12px;color:var(--brand);font-weight:600}
.camp-card p{padding:4px 16px 14px;color:var(--muted);font-size:13px}

.n-card{padding:20px}
.n-card time{font-size:13px;color:var(--brand);font-weight:600}
.n-cat{display:inline-block;background:var(--sub);color:var(--muted);font-size:11px;padding:3px 10px;border-radius:10px;margin-left:8px}
.n-card h4{font-size:17px;margin:8px 0 6px}
.n-card p{color:var(--muted);font-size:14px;margin-bottom:10px}
.n-card a{font-weight:600;font-size:13px}

/* —— Why / Design / Rules sections —— */
.why,.design,.rule-list section{padding:40px 0}
.why-lead,.design p{font-size:16px;color:var(--ink);max-width:680px;margin-bottom:20px}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.why-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.why-card h4{font-size:17px;color:var(--brand);margin-bottom:8px}

/* —— Rule list —— */
.rule-list{list-style:none;padding:0}
.rule-list li{padding:12px 0;border-bottom:1px dashed var(--line);display:flex;gap:12px}
.rule-list li b{color:var(--brand);min-width:60px;flex-shrink:0}

/* —— CTA band —— */
.cta-band{background:#fff3f0;border-radius:16px;padding:40px;margin:40px 0;text-align:center}
.cta-band h3{font-size:clamp(18px,2.2vw,26px);margin-bottom:20px}

/* —— Caption heading —— */
section .wrap{padding:32px 0}
section h2{padding-top:16px;margin-bottom:16px}
section h3{margin-top:24px;margin-bottom:10px;font-size:18px}

/* —— Table of Contents —— */
.toc{display:flex;gap:24px;flex-wrap:wrap;background:#fff;border-radius:var(--radius);padding:16px 24px;margin:16px 0 24px;box-shadow:var(--shadow);font-size:14px}
.toc span{color:var(--muted);font-weight:600}
.toc a{color:var(--ink)}
.toc a:hover{color:var(--brand)}

/* —— Tables —— */
.table-wrap{overflow-x:auto;margin:16px 0}
table{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
caption{text-align:left;font-weight:600;font-size:14px;color:var(--brand);padding:14px 16px;background:#fff3f0}
thead th{background:#1a1a2e;color:#fff;padding:12px 16px;font-weight:600;text-align:left;font-size:13px}
tbody td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#faf7f2}
td:first-child{white-space:nowrap}
td a{white-space:nowrap}
table.num td{text-align:right}

/* —— FAQ —— */
.faq{max-width:800px;margin:16px 0}
.faq details{background:#fff;border-radius:var(--radius);margin-bottom:10px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{padding:18px 24px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:15px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq .ans{padding:0 24px 20px;color:var(--muted);font-size:15px;line-height:1.7}

/* —— Footer —— */
.site-foot{background:#1a1a2e;color:#aaa;margin-top:60px;padding:48px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid #333}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13px;color:#888;line-height:1.7;margin-bottom:20px}
.foot-brand .brand-txt b{color:#fff}
.foot-brand .brand-txt span{color:#666}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:10px;font-size:13px}
.foot-col a{color:#888}
.foot-col a:hover{color:var(--brand)}
.socials{display:flex;gap:10px}
.socials a{width:36px;height:36px;border-radius:8px;background:#333;color:#fff;font-weight:700;display:grid;place-items:center;font-size:13px;transition:background .2s}
.socials a:hover{background:var(--brand);color:#fff}
.foot-bottom{display:flex;justify-content:space-between;padding-top:20px;font-size:12px;color:#666;flex-wrap:wrap;gap:8px}
.foot-bottom a{color:#888}

/* —— Responsive —— */
@media (max-width:1080px){
  .hero-grid,.stat-band{grid-template-columns:repeat(2,1fr)}
  .cat-grid,.t-grid,.rev-grid,.camp-grid,.w-grid,.ch-grid,.sk-grid{grid-template-columns:repeat(2,1fr)}
  .step-list{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .mainnav{display:none}
}
@media (max-width:720px){
  h1{font-size:clamp(24px,6vw,34px)}
  .hero{padding:40px 0 24px}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat{padding:18px 12px}
  .cat-grid,.t-grid,.rev-grid,.camp-grid,.w-grid,.ch-grid,.sk-grid,.n-grid{grid-template-columns:1fr}
  .step-list{grid-template-columns:1fr}
  .step-list.big>li{flex-direction:column;gap:12px}
  .why-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .ticker ul{display:none}
  .ticker .wrap{justify-content:space-between}
  .mainnav{display:none}
  .nav-cta{padding:8px 14px;font-size:13px}
  .brand-txt span{display:none}
  .toc{flex-direction:column;gap:10px;padding:12px 16px}
  .cta-band{padding:28px 20px;margin:24px 0;border-radius:12px}
  table{font-size:13px}
  thead th,tbody td{padding:10px 12px}
}
@media (max-width:480px){
  .hero-meta{flex-direction:column;gap:6px}
  .brand-mark{width:36px;height:36px;font-size:16px}
  .brand-txt b{font-size:14px}
}

@media (prefers-reduced-motion:reduce){
  .ticker .live i{animation:none}
  .cat-card:hover,.rev-card:hover,.w-card:hover,.ch-card:hover,.sk-card:hover,.n-card:hover,.camp-card:hover{transform:none}
  .btn.primary:hover{transform:none}
}