/* =========================================================
   设计令牌 —— 统一封面色板：深蓝紫暗色 + 蓝/紫/青渐变
   默认(无 data-theme)=封面色；[data-theme="light"]=同品牌色的浅色变体
   变量名保持(--bg/--panel/--card/--brand/--green...)，模板无需大改
   ========================================================= */
:root{
  --bg:#0b1020; --bg2:#0e1430;
  --panel:rgba(255,255,255,.06); --card:rgba(255,255,255,.06); --line:rgba(255,255,255,.12);
  --text:#f4f6fb; --muted:#aab3c5;
  --brand:#5b8cff; --brand2:#9b6bff; --accent:#9b6bff;   /* 蓝 / 紫(主色/标题色条) */
  --green:#23d5ab; --gold:#ffb347; --red:#ff6b7d; --blue:#5b8cff;
  --pink:#ff6b9d;
  --hover-row:rgba(91,140,255,.10);
  --gold-soft:rgba(255,179,71,.14);
  --scrim:rgba(2,6,23,.6);
}
[data-theme="light"]{
  --bg:#f5f7fc; --bg2:#eef2fb;
  --panel:#ffffff; --card:#ffffff; --line:#e2e8f0;
  --text:#1a2238; --muted:#5b667e;
  --brand:#3b6fe0; --brand2:#7b4be0; --accent:#7b4be0;
  --green:#12a98a; --gold:#d98a12; --red:#e2455f; --blue:#3b6fe0;
  --pink:#ff6b9d;
  --hover-row:rgba(59,111,224,.08);
  --gold-soft:rgba(217,138,18,.12);
  --scrim:rgba(15,23,42,.45);
}

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(1200px 720px at 82% -12%, rgba(91,140,255,.12), transparent 60%),
    radial-gradient(900px 620px at -6% 104%, rgba(155,107,255,.10), transparent 60%),
    var(--bg);
  color:var(--text);line-height:1.6;min-height:100vh;
  transition:background .25s ease,color .25s ease}
a{color:var(--brand);text-decoration:none}

.wrap{max-width:1100px;margin:0 auto;padding:20px}
header{background:var(--panel);padding:18px 20px;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:10;transition:background .25s ease,border-color .25s ease}
header h1{font-size:20px;font-weight:700}
header h1 span{color:var(--accent)}
/* 返回键（左上角） */
.back-btn{display:inline-flex;align-items:center;gap:3px;flex-shrink:0;
  padding:6px 12px;border-radius:9px;background:var(--card);
  border:1px solid var(--line);color:var(--text);font-size:14px;font-weight:600;
  text-decoration:none;cursor:pointer;transition:.15s}
.back-btn:hover{border-color:var(--brand);color:var(--brand)}
.back-btn .arw{font-size:18px;line-height:1;margin-top:-1px}
.nav{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}
.nav a{background:var(--card);padding:6px 14px;border-radius:8px;font-size:13px;color:var(--muted);border:1px solid var(--line);transition:.15s}
.nav a.active,.nav a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

.grid{display:grid;gap:16px}
.cards{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;transition:.25s}
.card h3{font-size:13px;color:var(--muted);font-weight:500;margin-bottom:8px}
.card .num{font-size:28px;font-weight:700}
.card .num.green{color:var(--green)} .card .num.gold{color:var(--gold)} .card .num.blue{color:var(--blue)} .card .num.red{color:var(--red)}
section{margin-top:28px}
section h2{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
section h2::before{content:"";width:4px;height:18px;background:var(--accent);border-radius:2px}

table{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;font-size:13px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg);color:var(--muted);font-weight:600;font-size:12px;white-space:nowrap}
tbody tr:hover{background:var(--hover-row)}

.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:600}
.badge.g{background:rgba(91,140,123,.15);color:var(--green)}
.badge.b{background:rgba(79,109,122,.15);color:var(--blue)}
.badge.y{background:var(--gold-soft);color:var(--gold)}
.badge.r{background:rgba(255,107,125,.16);color:var(--red)}
.badge.w{background:rgba(120,113,108,.15);color:var(--muted)}
.badge.o{background:var(--gold-soft);color:var(--gold)}

/* ===== 按钮：默认 / 次要 / 幽灵 / 危险 + 完整交互态 ===== */
.btn{display:inline-block;position:relative;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border:none;
  padding:9px 18px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit;
  box-shadow:0 1px 3px rgba(0,0,0,.12);
  transition:background .15s ease,box-shadow .15s ease,transform .08s ease,filter .15s ease}
.btn:hover{filter:brightness(.94);box-shadow:0 4px 10px rgba(0,0,0,.16);transform:translateY(-1px)}
.btn:active{transform:translateY(1px);filter:brightness(.88);box-shadow:0 1px 2px rgba(0,0,0,.2)}
.btn:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px}
.btn.s{background:var(--card);border:1px solid var(--line);color:var(--text)}
.btn.ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand)}
.btn.ghost:hover{background:var(--hover-row);transform:translateY(-1px)}
.btn.ghost:active{transform:translateY(1px);filter:brightness(.95)}
.btn.s:hover{background:var(--hover-row);transform:translateY(-1px)}
.btn.s:active{transform:translateY(1px)}
.btn.g{background:linear-gradient(135deg,var(--green),#1ab89a);color:#04221c} .btn.r{background:linear-gradient(135deg,var(--red),#ff4d6a);color:#2a0a10} .btn.y{background:linear-gradient(135deg,var(--gold),#ff9d2f);color:#3a2400}

.btn-mini{background:var(--card);border:1px solid var(--line);color:var(--blue);
  padding:4px 10px;border-radius:6px;cursor:pointer;font-size:12px;font-weight:600;font-family:inherit;transition:.15s}
.btn-mini:hover{background:var(--hover-row);border-color:var(--blue)}
.btn-mini.g{color:var(--green);border-color:var(--green)}
.btn-mini.r{color:var(--red);border-color:var(--red)}
.btn-mini:active{transform:translateY(1px)}

/* loading 态：转圈 + 防重复点击 */
.btn.is-loading{color:transparent!important;pointer-events:none}
.btn.is-loading::after{content:"";position:absolute;left:50%;top:50%;width:16px;height:16px;
  margin:-8px 0 0 -8px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}
.btn.s.is-loading::after,.btn-mini.is-loading::after{border-color:rgba(120,120,120,.45);border-top-color:var(--brand)}
@keyframes spin{to{transform:rotate(360deg)}}
.btn.is-success{background:var(--green)!important;color:#fff!important}

/* ===== 表单 / 预览 / 标签页 / toast ===== */
.form{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;max-width:680px;margin:0 auto}
.form h2{justify-content:center}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:11px 12px;color:var(--text);font-size:14px;font-family:inherit;transition:border-color .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hint{font-size:12px;color:var(--muted);margin-top:5px}
.preview{background:var(--bg);border:1px dashed var(--line);border-radius:8px;padding:12px;margin-top:10px;font-size:13px}
.preview b{color:var(--gold)}
.preview .error-inline{color:var(--red);font-weight:600}
.tabs{display:flex;gap:6px;margin-bottom:14px}
.tabs button{background:var(--card);border:1px solid var(--line);color:var(--muted);padding:7px 16px;border-radius:8px;cursor:pointer;font-size:13px;font-family:inherit;transition:.15s}
.tabs button.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--green);color:#fff;padding:12px 24px;border-radius:10px;font-size:14px;opacity:0;transition:.3s;z-index:100}
.toast.show{opacity:1}
.center{text-align:center}
.sub{color:var(--muted);font-size:13px;margin-bottom:18px}
.modal{position:fixed;inset:0;background:var(--scrim);display:flex;align-items:center;justify-content:center;z-index:50}
/* ===== 响应式：手机 / 平板 / 电脑 三档适配 ===== */
@media(max-width:760px){
  .wrap{padding:14px}
  header{padding:14px 14px}
  header h1{font-size:17px}
  .nav a{padding:5px 11px;font-size:12px}
  /* 宽表在手机上横向滚动，保留圆角卡片观感 */
  table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  th,td{padding:8px 9px;font-size:12px;white-space:nowrap}
  .me{flex-direction:column;align-items:flex-start;gap:12px}
  .me .stat .n{font-size:18px}
  .composer .row{flex-direction:column;align-items:stretch}
  .composer .url,.composer select{width:100%}
  .login-box{margin:30px auto;padding:22px}
  .modal>div{max-width:94vw;max-height:90vh;overflow:auto;padding:16px}
  .hall-card .top{flex-direction:column;gap:6px}
  .post .acts{gap:14px}
  .lbcard{min-width:104px}
  .tfilter{padding:4px 10px;font-size:12px}
}
@media(max-width:480px){
  header h1{font-size:15px}
  .grid.cards{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
  .card .num{font-size:24px}
  .btn,.btn.s{font-size:13px}
  section h2{font-size:15px}
}
/* 电脑宽屏：内容更舒展 */
@media(min-width:1280px){
  .wrap{max-width:1200px}
}

/* ===== 亮/暗切换按钮 ===== */
.theme-toggle{position:absolute;top:14px;right:18px;background:var(--card);border:1px solid var(--line);
  color:var(--text);font-size:13px;padding:6px 12px;border-radius:8px;cursor:pointer;font-family:inherit;
  transition:background .15s,transform .08s,box-shadow .15s;z-index:6}
.theme-toggle:hover{background:var(--hover-row);transform:translateY(-1px);box-shadow:0 2px 6px rgba(0,0,0,.12)}
.theme-toggle:active{transform:translateY(1px)}
.theme-toggle:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px}

/* ===== 管理后台：侧边栏 + 面板切换 ===== */
.admin-body header .wrap{padding:0}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line)}
.header-row h1{margin:0}
.menu-toggle{display:none;background:var(--card);border:1px solid var(--line);color:var(--text);font-size:15px;padding:6px 12px;border-radius:8px;cursor:pointer}
.menu-toggle:hover{background:var(--hover-row)}
.admin-wrap{padding-top:20px}
.admin-layout{display:flex;gap:20px;align-items:flex-start}
.admin-sidebar{position:sticky;top:86px;width:190px;flex-shrink:0;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px 0;max-height:calc(100vh - 110px);overflow-y:auto}
.admin-sidebar nav{display:flex;flex-direction:column;gap:4px;padding:0 10px}
.admin-link{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--muted);transition:.15s;white-space:nowrap}
.admin-link:hover,.admin-link.active{background:var(--brand);color:#fff}
.admin-main{flex:1;min-width:0;min-height:60vh}
.admin-panel{display:none;animation:fadeIn .25s ease}
.admin-panel.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* 后台移动端：顶部菜单抽屉 */
@media(max-width:760px){
  .header-row{padding:12px 14px}
  .menu-toggle{display:inline-block}
  .theme-toggle{position:static}
  .admin-wrap{padding-top:14px}
  .admin-layout{flex-direction:column;gap:14px}
  .admin-sidebar{position:static;width:100%;max-height:none;display:none;border-radius:12px;padding:10px}
  .admin-sidebar.open{display:block}
  .admin-sidebar nav{flex-direction:row;flex-wrap:wrap;gap:6px}
  .admin-link{flex:1;min-width:120px;justify-content:center}
  .admin-main{width:100%}
}
@media(max-width:480px){
  .admin-link{font-size:13px;padding:8px 10px}
  .header-row h1{font-size:15px}
}

/* ===== 移动端顶部固定导航（APP 风格 tab bar） ===== */
.m-tab{display:none}
@media(max-width:760px){
  body:not(.admin-body){padding-top:calc(56px + env(safe-area-inset-top));padding-bottom:0}
  .m-tab{position:fixed;left:0;right:0;top:0;z-index:60;display:flex;
    justify-content:space-around;align-items:center;
    background:rgba(11,16,32,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.06);
    padding:calc(4px + env(safe-area-inset-top)) 8px 4px;
    box-shadow:0 4px 18px rgba(0,0,0,.22)}
  .m-tab a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    flex:1;max-width:88px;text-decoration:none;color:var(--muted);font-size:11px;font-weight:500;
    padding:5px 0;border-radius:12px;transition:color .2s,background .2s,transform .15s}
  .m-tab a .ic{width:20px;height:20px;display:block;flex-shrink:0}
  .m-tab a .ic svg{width:20px;height:20px;display:block}
  .m-tab a.active{color:var(--brand);background:rgba(91,140,255,.08);font-weight:600}
  .m-tab a.active .ic{transform:translateY(1px);filter:drop-shadow(0 2px 4px rgba(91,140,255,.35))}
  .topbar{z-index:55}
}
/* 边缘左滑返回指示器（移动端） */
.swipe-back{animation:swipeBack .25s ease}
@keyframes swipeBack{from{opacity:.4;transform:translateX(-12px)}to{opacity:1;transform:none}}