/* ============================================================
   才梓自习室 · 站点样式
   品牌延续（墨绿青），但更柔和、更安静
   ============================================================ */

:root{
  --bg:#0A0D11;
  --bg-2:#0C1218;
  --panel:#0F161D;
  --panel-2:#131C24;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.14);
  --text:#E8EEF4;
  --sub:#9BA9B7;
  --dim:#616F7D;
  --accent:#4DD8C0;
  --accent-2:#7DE8D6;
  --accent-dim:rgba(77,216,192,.10);
  --warm:#E0B87A;
  --warm-dim:rgba(224,184,122,.10);
  --red:#E0776B;

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --num:"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:rgba(77,216,192,.24);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1140px;margin:0 auto;padding:0 30px;}
.mono{font-family:var(--mono);letter-spacing:.06em;}
.n-num{font-family:var(--num);font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-weight:600;}

/* ===== 导航 ===== */
header.sr{
  position:fixed;top:0;left:0;right:0;z-index:150;
  background:rgba(10,13,17,.78);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.3s;
}
header.sr.scrolled{border-bottom-color:var(--line);background:rgba(10,13,17,.95);}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px;gap:22px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo b{font-size:16px;letter-spacing:.12em;font-weight:600;display:block;line-height:1.3;}
.logo i{font-style:normal;font-family:var(--mono);font-size:9px;color:var(--dim);letter-spacing:.16em;display:block;}
.menu{display:flex;align-items:center;gap:28px;}
.menu a{font-size:14px;color:var(--sub);letter-spacing:.03em;transition:.2s;white-space:nowrap;position:relative;padding:4px 0;}
.menu a:hover,.menu a.on{color:var(--text);}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--accent);transition:.25s;}
.menu a:hover::after,.menu a.on::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn-back{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--sub);
  border:1px solid var(--line-2);padding:8px 14px;border-radius:3px;transition:.25s;white-space:nowrap;
}
.btn-back:hover{color:var(--accent);border-color:rgba(77,216,192,.4);background:var(--accent-dim);}
.btn-back svg{transition:.25s;}
.btn-back:hover svg{transform:translateX(-2px);}
.burger{display:none;width:22px;height:14px;cursor:pointer;flex:none;}
.burger span{display:block;height:1px;background:var(--text);margin-bottom:5px;}
.burger span:last-child{margin-bottom:0;}

/* ===== Hero / Banner 轮播 ===== */
.banner{position:relative;height:700px;margin-top:66px;overflow:hidden;background:var(--bg-2);}
.slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1s ease;
  display:flex;align-items:center;
}
.slide.on{opacity:1;}
.slide .bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  background-color:var(--panel-2);
  filter:brightness(.86) saturate(.92);
}
/* 占位：等待替换为真实图片 */
.slide.ph1 .bg,.slide.ph2 .bg,.slide.ph3 .bg,.slide.ph4 .bg,.slide.ph5 .bg{background-color:#101820;}
.slide .mask{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(8,11,14,.95) 0%,rgba(8,11,14,.74) 42%,rgba(8,11,14,.28) 100%),
    linear-gradient(180deg,rgba(8,11,14,.35) 0%,transparent 38%,transparent 62%,rgba(8,11,14,.72) 100%);
}
.slide .inner{position:relative;width:100%;}
.slide .tag{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;
  letter-spacing:.18em;color:var(--accent);border:1px solid rgba(77,216,192,.3);
  background:var(--accent-dim);padding:5px 12px;border-radius:2px;margin-bottom:20px;
}
.slide h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.26;font-weight:600;letter-spacing:.01em;
  margin-bottom:18px;max-width:660px;
}
.slide h1 em{font-style:normal;color:var(--accent);}
.slide p{font-size:16px;color:#C3D0DA;max-width:520px;line-height:1.9;margin-bottom:26px;}
.slide .acts{display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 24px;font-size:14.5px;
  letter-spacing:.04em;border-radius:3px;transition:.25s;border:1px solid transparent;cursor:pointer;
  font-family:inherit;
}
.btn-p{background:var(--accent);color:#04211C;font-weight:600;}
.btn-p:hover{background:var(--accent-2);transform:translateY(-1px);box-shadow:0 8px 22px -8px rgba(77,216,192,.5);}
.btn-s{border-color:rgba(255,255,255,.24);color:#E8EEF4;}
.btn-s:hover{border-color:var(--accent);color:var(--accent);}
.btn-w{background:var(--warm);color:#22180A;font-weight:600;}
.btn-w:hover{background:#EFC98F;transform:translateY(-1px);}

.dots{position:absolute;bottom:26px;left:0;right:0;display:flex;justify-content:center;gap:9px;z-index:5;}
.dots i{
  width:26px;height:3px;background:rgba(255,255,255,.22);border-radius:2px;cursor:pointer;transition:.3s;display:block;
}
.dots i.on{background:var(--accent);width:38px;}
.arrow{
  position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;z-index:5;
  border:1px solid rgba(255,255,255,.18);border-radius:50%;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.25s;background:rgba(10,14,18,.35);color:var(--text);
}
.arrow:hover{background:rgba(77,216,192,.14);border-color:rgba(77,216,192,.5);color:var(--accent);}
.arrow.prev{left:22px;}
.arrow.next{right:22px;}

/* ===== 区块 ===== */
section.pad{padding:86px 0;}
.sec-head{margin-bottom:44px;max-width:720px;}
.sec-no{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:var(--accent);margin-bottom:13px;}
h2.sec-t{font-size:clamp(24px,2.7vw,33px);line-height:1.42;font-weight:600;letter-spacing:.01em;margin-bottom:14px;}
.sec-head p{color:var(--sub);font-size:15.2px;line-height:1.95;max-width:640px;}

/* 服务卡 */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:5px;padding:26px 24px;
  transition:.3s;display:flex;flex-direction:column;
}
.card:hover{border-color:rgba(77,216,192,.28);transform:translateY(-2px);}
.card .ic{
  width:38px;height:38px;border-radius:6px;background:var(--accent-dim);
  border:1px solid rgba(77,216,192,.22);display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;color:var(--accent);
}
.card.warm .ic{background:var(--warm-dim);border-color:rgba(224,184,122,.26);color:var(--warm);}
.card h3{font-size:17.5px;margin-bottom:10px;font-weight:600;letter-spacing:.02em;line-height:1.5;}
.card p{font-size:13.8px;color:var(--sub);line-height:1.85;margin-bottom:14px;}
.card ul{list-style:none;margin-top:auto;}
.card ul li{font-size:13.2px;color:var(--sub);line-height:1.75;padding-left:15px;position:relative;margin-bottom:7px;}
.card ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:1px;background:var(--accent);}
.card.warm ul li::before{background:var(--warm);}

/* 保障条 */
.guard{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);}
.gd{padding:30px 24px;border-right:1px solid var(--line);}
.gd:last-child{border-right:none;}
.gd .n{font-family:var(--num);font-size:26px;color:var(--accent);margin-bottom:6px;font-variant-numeric:tabular-nums;}
.gd b{display:block;font-size:14.5px;margin-bottom:5px;}
.gd span{font-size:12.8px;color:var(--dim);line-height:1.7;display:block;}

/* 座位预览卡 */
.seat-tease{
  display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;
}
.mock{
  background:var(--panel);border:1px solid var(--line-2);border-radius:8px;padding:22px;
}
.mock-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;
  font-size:12px;color:var(--dim);font-family:var(--mono);letter-spacing:.1em;}
.mock-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:7px;}
.mock-seat{
  aspect-ratio:1;border-radius:4px;border:1px solid var(--line-2);background:var(--panel-2);
  display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--dim);font-family:var(--mono);
}
.mock-seat.free{border-color:rgba(77,216,192,.3);background:rgba(77,216,192,.08);color:var(--accent);}
.mock-seat.taken{border-color:rgba(255,255,255,.06);background:rgba(255,255,255,.03);color:#3A4550;}
.mock-legend{display:flex;gap:16px;margin-top:14px;font-size:11.5px;color:#7C8A98;}
.mock-legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;vertical-align:0;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:6px;}
.stp{padding-right:20px;position:relative;}
.stp::after{content:"";position:absolute;top:9px;right:8px;width:12px;height:1px;background:var(--line-2);}
.stp:last-child::after{display:none;}
.stp .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--accent);margin-bottom:10px;}
.stp b{display:block;font-size:14.5px;margin-bottom:5px;}
.stp span{font-size:12.5px;color:var(--dim);line-height:1.65;display:block;}

/* CTA */
.cta-box{
  background:linear-gradient(140deg,rgba(77,216,192,.09),rgba(224,184,122,.05));
  border:1px solid rgba(77,216,192,.22);border-radius:8px;padding:44px;text-align:center;
}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;font-weight:600;}
.cta-box p{color:var(--sub);font-size:14.8px;margin-bottom:26px;}
.cta-acts{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ===== 页脚 ===== */
footer.sr{border-top:1px solid var(--line);padding:40px 0 36px;margin-top:20px;}
.ft{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line);}
.ft-info{font-size:12.8px;color:var(--dim);line-height:2;}
.ft-info a{color:var(--accent);}
.ft-links{display:flex;gap:24px;font-size:13px;color:var(--sub);flex-wrap:wrap;}
.ft-links a:hover{color:var(--accent);}
.ft-bot{padding-top:20px;display:flex;justify-content:space-between;font-size:11.5px;color:var(--dim);gap:20px;flex-wrap:wrap;}

/* ===== 选座页 ===== */
.page-hd{padding:110px 0 34px;border-bottom:1px solid var(--line);}
.crumb{display:flex;gap:9px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--dim);margin-bottom:18px;flex-wrap:wrap;}
.crumb a:hover{color:var(--accent);}
.crumb i{font-style:normal;color:#2C353E;}
.page-hd h1{font-size:clamp(27px,3.2vw,38px);font-weight:600;margin-bottom:12px;}
.page-hd p{color:var(--sub);font-size:15px;max-width:640px;line-height:1.9;}

.seat-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:44px 0 80px;align-items:start;}
.room{
  background:var(--panel);border:1px solid var(--line-2);border-radius:8px;padding:26px;
}
.room-top{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.room-top .t{font-size:14px;letter-spacing:.04em;}
.room-top .stat{font-family:var(--mono);font-size:11.5px;color:var(--dim);letter-spacing:.06em;}
.room-top .stat b{color:var(--accent);font-size:14px;}

.podium{
  text-align:center;font-size:11px;letter-spacing:.24em;color:var(--dim);
  border:1px dashed var(--line-2);border-radius:4px;padding:9px;margin-bottom:18px;
  font-family:var(--mono);
}
.grid{display:grid;gap:9px;}
.seat{
  height:64px;border-radius:5px;border:1px solid var(--line-2);background:var(--panel-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  cursor:pointer;transition:.18s;position:relative;font-family:var(--mono);
}
.seat .sid{font-size:11.5px;color:var(--sub);letter-spacing:.04em;}
.seat .st{font-size:9px;color:var(--dim);}
.seat.free{border-color:rgba(77,216,192,.28);background:rgba(77,216,192,.055);}
.seat.free .sid{color:var(--accent);}
.seat.free:hover{border-color:var(--accent);background:rgba(77,216,192,.14);transform:translateY(-2px);box-shadow:0 6px 18px -8px rgba(77,216,192,.4);}
.seat.taken{background:rgba(255,255,255,.028);cursor:not-allowed;border-color:rgba(255,255,255,.055);}
.seat.taken .sid{color:#3E4954;}
.seat.taken .st{color:#333C45;}
.seat.off{background:repeating-linear-gradient(45deg,rgba(255,255,255,.02),rgba(255,255,255,.02) 4px,transparent 4px,transparent 8px);
  cursor:not-allowed;border-color:rgba(255,255,255,.04);}
.seat.off .sid{color:#333C45;}
.seat.sel{border-color:var(--warm);background:rgba(224,184,122,.16);box-shadow:0 0 0 1px var(--warm) inset;}
.seat.sel .sid{color:var(--warm);}
.seat.mine{border-color:rgba(224,184,122,.45);background:rgba(224,184,122,.09);}
.seat.mine .sid{color:var(--warm);}

.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.legend span{font-size:11.5px;color:#7C8A98;display:inline-flex;align-items:center;gap:6px;}
.legend i{width:11px;height:11px;border-radius:3px;border:1px solid var(--line-2);display:inline-block;}
.legend i.f{background:rgba(77,216,192,.16);border-color:rgba(77,216,192,.4);}
.legend i.t{background:rgba(255,255,255,.04);}
.legend i.o{background:repeating-linear-gradient(45deg,rgba(255,255,255,.05),rgba(255,255,255,.05) 2px,transparent 2px,transparent 4px);}
.legend i.s{background:rgba(224,184,122,.2);border-color:var(--warm);}

/* 预定面板 */
.book{background:var(--panel);border:1px solid var(--line-2);border-radius:8px;padding:24px;position:sticky;top:86px;}
.book h3{font-size:15.5px;margin-bottom:4px;}
.book .sub{font-size:12.5px;color:var(--dim);margin-bottom:18px;line-height:1.7;}
.fld{margin-bottom:14px;}
.fld label{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--dim);margin-bottom:7px;}
.fld input,.fld select,.fld textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--line-2);color:var(--text);
  padding:11px 13px;font-size:14px;font-family:inherit;border-radius:3px;outline:none;transition:.2s;
}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--accent);}
.fld textarea{resize:vertical;min-height:64px;}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.picked{
  background:var(--accent-dim);border:1px solid rgba(77,216,192,.28);border-radius:4px;
  padding:12px 14px;font-size:13px;color:var(--sub);margin-bottom:16px;display:flex;
  justify-content:space-between;align-items:center;
}
.picked b{color:var(--accent);font-family:var(--mono);font-size:15px;letter-spacing:.06em;}
.tip{font-size:11.8px;color:var(--dim);line-height:1.7;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);}
.ok-box{
  display:none;background:rgba(77,216,192,.08);border:1px solid rgba(77,216,192,.3);
  border-radius:5px;padding:16px;margin-top:14px;
}
.ok-box.show{display:block;}
.ok-box b{display:block;color:var(--accent);font-size:14px;margin-bottom:8px;}
.ok-box .code{
  font-family:var(--mono);font-size:12px;color:var(--sub);line-height:1.8;
  background:var(--bg-2);border:1px dashed var(--line-2);border-radius:3px;padding:10px;
  white-space:pre-wrap;word-break:break-all;margin-bottom:10px;
}
.mini{font-size:11.5px;color:var(--dim);}

/* ===== 后台 ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px;}
.login{
  width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line-2);
  border-radius:8px;padding:34px 30px;
}
.login h1{font-size:20px;margin-bottom:6px;text-align:center;letter-spacing:.06em;}
.login .hint{font-size:12.5px;color:var(--dim);text-align:center;margin-bottom:26px;}
.err{display:none;background:rgba(224,119,107,.1);border:1px solid rgba(224,119,107,.35);
  color:#E9A199;font-size:12.5px;padding:9px 12px;border-radius:3px;margin-bottom:14px;}
.err.show{display:block;}

.admin-head{padding:100px 0 24px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;}
.admin-head h1{font-size:24px;margin-bottom:6px;}
.admin-head p{font-size:13px;color:var(--dim);}
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:32px;}
.tabs button{
  background:none;border:none;border-bottom:2px solid transparent;color:var(--sub);
  padding:13px 20px;font-size:14px;font-family:inherit;cursor:pointer;transition:.2s;letter-spacing:.03em;
}
.tabs button:hover{color:var(--text);}
.tabs button.on{color:var(--accent);border-bottom-color:var(--accent);}
.tabpane{display:none;padding-bottom:70px;}
.tabpane.on{display:block;}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:22px 24px;margin-bottom:18px;}
.panel h3{font-size:15px;margin-bottom:4px;}
.panel .pd{font-size:12.6px;color:var(--dim);margin-bottom:18px;line-height:1.7;}
.inline{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;align-items:end;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th{text-align:left;padding:10px 12px;color:var(--dim);font-weight:500;font-size:11.5px;
  letter-spacing:.1em;border-bottom:1px solid var(--line-2);}
td{padding:11px 12px;border-bottom:1px solid var(--line);color:var(--sub);}
tr:hover td{background:rgba(255,255,255,.015);}
.empty{text-align:center;padding:34px 0;color:var(--dim);font-size:13px;}
.tag-s{display:inline-block;font-family:var(--mono);font-size:10.5px;padding:2px 7px;border-radius:2px;
  letter-spacing:.06em;background:var(--accent-dim);color:var(--accent);border:1px solid rgba(77,216,192,.25);}
.tag-s.g{background:rgba(255,255,255,.04);color:var(--dim);border-color:var(--line-2);}
.mini-btn{
  background:none;border:1px solid var(--line-2);color:var(--sub);font-size:12px;
  padding:5px 11px;border-radius:3px;cursor:pointer;font-family:inherit;transition:.2s;
}
.mini-btn:hover{border-color:var(--red);color:var(--red);}
.mini-btn.ok:hover{border-color:var(--accent);color:var(--accent);}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:5px;overflow:hidden;margin-bottom:20px;}
.stat-row div{background:var(--panel);padding:18px 20px;}
.stat-row .v{font-family:var(--num);font-size:26px;color:var(--text);font-variant-numeric:tabular-nums;}
.stat-row .l{font-size:11.5px;color:var(--dim);margin-top:3px;}

/* 动效 */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
.rv.in{opacity:1;transform:none;}
.d1{transition-delay:.07s;}.d2{transition-delay:.14s;}.d3{transition-delay:.21s;}


/* 最后一张：上下渐变，人脸全露，文字沉底 */
.slide.c-b{align-items:flex-end;}
.slide.c-b .mask{
  background:linear-gradient(180deg,
    rgba(8,11,14,.82) 0%,
    rgba(8,11,14,.30) 16%,
    rgba(8,11,14,.05) 34%,
    rgba(8,11,14,.04) 56%,
    rgba(8,11,14,.86) 82%,
    rgba(8,11,14,.95) 100%);
}
.slide.c-b .inner{padding-bottom:96px;}
.slide.c-b h1{font-size:clamp(28px,3.8vw,44px);margin-bottom:14px;}
.slide.c-b p{max-width:560px;}

@media(max-width:1000px){
  .svc{grid-template-columns:1fr;}
  .guard{grid-template-columns:1fr 1fr;}
  .gd:nth-child(2){border-right:none;}
  .gd:nth-child(1),.gd:nth-child(2){border-bottom:1px solid var(--line);}
  .seat-tease{grid-template-columns:1fr;gap:32px;}
  .seat-layout{grid-template-columns:1fr;gap:26px;}
  .book{position:static;}
  .flow{grid-template-columns:1fr 1fr;gap:22px 0;}
  .stp::after{display:none;}
  .menu{display:none;}
  .menu.open{display:flex;position:absolute;top:66px;left:0;right:0;flex-direction:column;
    background:rgba(10,13,17,.98);border-bottom:1px solid var(--line);padding:20px 30px;gap:16px;align-items:flex-start;}
  .burger{display:block;}
  .banner{height:auto;min-height:0;padding:0;}
  .slide{position:relative;opacity:1;display:none;padding:70px 0;}
  .slide.on{display:block;}
  .arrow{display:none;}
  .dots{bottom:16px;}
  .stat-row{grid-template-columns:1fr 1fr;}
}
@media(max-width:640px){
  .wrap{padding:0 18px;}
  section.pad{padding:60px 0;}
  .guard{grid-template-columns:1fr;}
  .gd{border-right:none;border-bottom:1px solid var(--line);}
  .gd:last-child{border-bottom:none;}
  .cta-box{padding:30px 22px;}
  .room{padding:18px;}
  .grid{gap:6px;}
  .seat{height:52px;}
  .seat .st{display:none;}
  .seat .sid{font-size:10.5px;}
  .mock-grid{gap:5px;}
  .frow{grid-template-columns:1fr;}
  .admin-head{padding-top:90px;}
  .tabs button{padding:11px 12px;font-size:13px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .rv{opacity:1;transform:none;}
}