/* ==========================================================================
   平台界面样式：顶栏、登录页、首页、管理后台
   与 style.css 的深色投影主题配合使用；本文件只负责“应用外壳”和后台界面，
   不改变各单元页面内部的教学内容样式。
   ========================================================================== */

/* ---------- 统一设计变量 ---------- */
:root{
  --ui-bg:#0a111d;
  --ui-bg-soft:#0e1828;
  --ui-card:#131d2e;
  --ui-card-2:#17233a;
  --ui-line:rgba(255,255,255,.09);
  --ui-line-strong:rgba(255,255,255,.16);
  --ui-text:#eef3fb;
  --ui-muted:#93a5bd;
  --ui-amber:#f6c453;
  --ui-cyan:#58c8f2;
  --ui-radius:16px;
}

/* ---------- 顶部导航 ---------- */
.appbar{
  position:sticky;top:0;z-index:900;
  display:flex;align-items:center;gap:26px;
  height:68px;padding:0 30px;
  background:rgba(10,17,29,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--ui-line);
}
.appbar-brand{
  display:flex;align-items:center;gap:11px;
  text-decoration:none;color:var(--ui-text);flex:0 0 auto;
}
.appbar-logo{
  width:36px;height:36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#141414;
  background:linear-gradient(135deg,#ffd968,#f0a93b);
  box-shadow:0 6px 16px rgba(240,169,59,.28);
}
.appbar-name{
  font-size:15px;font-weight:700;line-height:1.15;letter-spacing:.01em;
}
.appbar-name small{
  display:block;font-size:11px;font-weight:500;color:var(--ui-muted);
  letter-spacing:.08em;margin-top:2px;
}
.appbar-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;}
.appbar-nav a{
  color:var(--ui-muted);text-decoration:none;font-size:14px;
  padding:8px 13px;border-radius:9px;white-space:nowrap;
  transition:color .15s,background .15s;
}
.appbar-nav a:hover{color:var(--ui-text);background:rgba(255,255,255,.06);}
.appbar-nav a.is-admin{color:var(--ui-amber);}
.appbar-nav a.is-admin:hover{background:rgba(246,196,83,.12);}
.appbar-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.appbar-user{display:flex;align-items:center;gap:9px;}
.appbar-avatar{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#141414;
  background:linear-gradient(135deg,#8fe3ff,#58c8f2);
}
.appbar-user-text{display:flex;flex-direction:column;line-height:1.15;}
.appbar-user-text b{font-size:13px;color:var(--ui-text);font-weight:700;}
.appbar-user-text small{font-size:11px;color:var(--ui-muted);}
.appbar-logout{
  color:var(--ui-muted);text-decoration:none;font-size:13px;
  border:1px solid var(--ui-line-strong);border-radius:9px;
  padding:7px 14px;transition:.15s;
}
.appbar-logout:hover{color:#ff8d8d;border-color:rgba(255,120,120,.5);}

/* ---------- 提示条 ---------- */
.flash{
  margin:14px 22px 0;padding:12px 18px;border-radius:12px;font-size:14px;
  border:1px solid var(--ui-line-strong);background:var(--ui-card);color:var(--ui-text);
}
.flash-success{border-color:rgba(102,187,106,.55);background:rgba(102,187,106,.12);}
.flash-error{border-color:rgba(239,83,80,.55);background:rgba(239,83,80,.12);}
.flash-info{border-color:rgba(88,200,242,.5);background:rgba(88,200,242,.10);}

/* ==========================================================================
   登录页
   ========================================================================== */
body.auth-page{
  margin:0;min-height:100vh;padding:36px 24px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  background:
    radial-gradient(900px 520px at 12% 8%, rgba(246,196,83,.10), transparent 62%),
    radial-gradient(900px 600px at 92% 92%, rgba(88,200,242,.10), transparent 62%),
    var(--ui-bg);
}
.auth-shell{
  display:grid;grid-template-columns:1.02fr .98fr;
  width:100%;max-width:980px;min-height:560px;
  border:1px solid var(--ui-line-strong);border-radius:24px;overflow:hidden;
  box-shadow:0 40px 90px rgba(0,0,0,.55);
}
.auth-hero{
  position:relative;overflow:hidden;
  padding:54px 50px;display:flex;flex-direction:column;justify-content:center;
  background:linear-gradient(150deg,#172741 0%,#101b2d 58%,#0b1422 100%);
}
.auth-hero::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  right:-120px;top:-120px;background:radial-gradient(circle,rgba(246,196,83,.28),transparent 68%);
}
.auth-hero::after{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  left:-120px;bottom:-140px;background:radial-gradient(circle,rgba(88,200,242,.22),transparent 68%);
}
.auth-mark{
  position:relative;z-index:1;
  width:52px;height:52px;border-radius:16px;margin-bottom:30px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;color:#141414;
  background:linear-gradient(135deg,#ffd968,#f0a93b);
  box-shadow:0 12px 30px rgba(240,169,59,.32);
}
.auth-hero h1{
  position:relative;z-index:1;
  margin:0;font-size:40px;line-height:1.24;letter-spacing:-.01em;
  color:#fff;font-weight:800;
}
.auth-hero-sub{
  position:relative;z-index:1;
  margin:14px 0 0;color:#9fb2ca;font-size:15px;
}
.auth-points{
  position:relative;z-index:1;
  list-style:none;margin:36px 0 0;padding:0;
  display:flex;flex-direction:column;gap:13px;
}
.auth-points li{
  display:flex;align-items:center;gap:11px;
  color:#cfdcee;font-size:14px;
}
.auth-points li span{
  width:6px;height:6px;border-radius:50%;flex:0 0 auto;
  background:var(--ui-amber);box-shadow:0 0 0 4px rgba(246,196,83,.14);
}
.auth-hero-foot{
  position:relative;z-index:1;
  margin:44px 0 0;color:#6f829c;font-size:12px;letter-spacing:.06em;
}
.auth-card{
  padding:52px 48px;display:flex;flex-direction:column;justify-content:center;
  background:var(--ui-bg-soft);
}
.auth-card-head{margin-bottom:26px;}
.auth-card h2{
  margin:0;font-size:30px;color:#fff;font-weight:800;letter-spacing:-.01em;
}
.auth-hint{margin:9px 0 0;color:var(--ui-muted);font-size:13px;line-height:1.6;}
.auth-card .flash{margin:0 0 16px;}
.auth-label{
  display:block;margin:0 0 16px;color:var(--ui-muted);font-size:12px;
  letter-spacing:.06em;
}
.auth-input{
  display:block;width:100%;margin-top:8px;
  height:46px;padding:0 14px;
  font-size:15px;font-family:inherit;color:var(--ui-text);
  background:#0a1320;border:1px solid var(--ui-line-strong);border-radius:11px;
  transition:border-color .15s,box-shadow .15s;
}
.auth-input:focus{
  outline:none;border-color:var(--ui-amber);
  box-shadow:0 0 0 3px rgba(246,196,83,.14);
}
.auth-submit{
  width:100%;margin-top:10px;height:48px;
  font-size:15px;font-weight:700;letter-spacing:.18em;
  color:#181205;border:none;border-radius:11px;
  background:linear-gradient(135deg,#ffd968,#f0a93b);
  box-shadow:0 10px 26px rgba(240,169,59,.26);
  cursor:pointer;transition:transform .12s,box-shadow .12s;
}
.auth-submit:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(240,169,59,.34);}
.auth-submit:active{transform:translateY(0);}
.auth-foot{
  margin:26px 0 0;text-align:center;color:#63748c;font-size:12px;letter-spacing:.06em;
}

/* ==========================================================================
   前台首页
   ========================================================================== */
body.portal{
  font-size:15px;
  background:
    radial-gradient(1000px 600px at 8% 0%, rgba(246,196,83,.07), transparent 60%),
    radial-gradient(900px 600px at 100% 30%, rgba(88,200,242,.06), transparent 60%),
    var(--ui-bg);
}
.portal-flash{max-width:1180px;margin:20px auto 0;}
.portal-wrap{max-width:1180px;margin:0 auto;padding:34px 28px 72px;}

.hero{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
  padding:48px 46px;border-radius:24px;
  border:1px solid var(--ui-line-strong);
  background:linear-gradient(135deg,rgba(246,196,83,.10),rgba(88,200,242,.05) 55%,transparent);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(246,196,83,.16),transparent 68%);
  pointer-events:none;
}
.hero-copy{position:relative;z-index:1;}
.hero-tag{
  display:inline-block;margin-bottom:18px;padding:5px 12px;border-radius:999px;
  font-size:11px;letter-spacing:.12em;color:var(--ui-amber);
  border:1px solid rgba(246,196,83,.32);background:rgba(246,196,83,.08);
}
.hero h1{
  margin:0;font-size:40px;line-height:1.22;letter-spacing:-.015em;
  color:#fff;font-weight:800;
}
.hero p{
  margin:16px 0 0;max-width:560px;color:var(--ui-muted);font-size:14px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.btn-hero{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:11px;
  font-size:14px;font-weight:700;text-decoration:none;color:#181205;
  background:linear-gradient(135deg,#ffd968,#f0a93b);
  box-shadow:0 10px 26px rgba(240,169,59,.24);
  transition:transform .12s;
}
.btn-hero:hover{transform:translateY(-1px);}
.btn-hero.ghost{
  color:var(--ui-text);background:rgba(255,255,255,.05);
  border:1px solid var(--ui-line-strong);box-shadow:none;
}
.btn-hero.ghost:hover{background:rgba(255,255,255,.09);}

.hero-stats{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
}
.hero-stat{
  padding:20px 18px;border-radius:15px;
  border:1px solid var(--ui-line);background:rgba(255,255,255,.045);
  transition:border-color .15s,background .15s;
}
.hero-stat:hover{border-color:rgba(246,196,83,.35);background:rgba(255,255,255,.07);}
.hero-stat b{
  display:block;font-size:28px;line-height:1.1;color:#fff;font-weight:800;
}
.hero-stat span{
  display:block;margin-top:6px;font-size:12px;color:var(--ui-muted);letter-spacing:.04em;
}

.section{margin-top:44px;}
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  margin-bottom:20px;
}
.section-head h2{
  margin:0;font-size:22px;color:#fff;font-weight:800;letter-spacing:-.01em;
}
.section-note{color:#6f829c;font-size:12px;}

.unit-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(252px,1fr));gap:16px;
}
.unit-card{
  position:relative;display:flex;flex-direction:column;
  padding:22px 22px 20px;border-radius:18px;
  border:1px solid var(--ui-line);background:var(--ui-card);
  text-decoration:none;color:var(--ui-text);overflow:hidden;
  transition:transform .18s,border-color .18s,box-shadow .18s;
}
.unit-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--ui-amber),var(--ui-cyan));
  opacity:0;transition:opacity .18s;
}
.unit-card:hover{
  transform:translateY(-4px);border-color:rgba(246,196,83,.42);
  box-shadow:0 22px 44px rgba(0,0,0,.36);
}
.unit-card:hover::before{opacity:1;}
.unit-card-top{
  display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;
}
.unit-index{font-size:13px;font-weight:700;color:var(--ui-amber);letter-spacing:.1em;}
.unit-key{
  font-size:10px;letter-spacing:.14em;color:#71849e;
  border:1px solid var(--ui-line);border-radius:999px;padding:3px 9px;
}
.unit-title{font-size:18px;font-weight:800;line-height:1.35;color:#fff;}
.unit-sub{margin-top:6px;font-size:12px;color:var(--ui-muted);line-height:1.6;min-height:34px;}
.unit-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.unit-meta span{
  font-size:11px;color:var(--ui-muted);
  border:1px solid var(--ui-line);border-radius:999px;padding:4px 10px;
}
.unit-go{
  margin-top:18px;font-size:12px;font-weight:700;color:var(--ui-cyan);
  letter-spacing:.04em;
}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
.tool-card{
  display:flex;align-items:center;gap:15px;
  padding:18px 20px;border-radius:16px;
  border:1px solid var(--ui-line);background:var(--ui-card);
  text-decoration:none;color:var(--ui-text);
  transition:border-color .15s,transform .15s,background .15s;
}
.tool-card:hover{
  border-color:rgba(88,200,242,.42);transform:translateY(-2px);background:var(--ui-card-2);
}
.tool-card.accent{border-color:rgba(246,196,83,.28);}
.tool-card.accent:hover{border-color:rgba(246,196,83,.6);}
.tool-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;letter-spacing:.06em;
  color:var(--ui-cyan);background:rgba(88,200,242,.10);
  border:1px solid rgba(88,200,242,.22);
}
.tool-card.accent .tool-icon{
  color:var(--ui-amber);background:rgba(246,196,83,.10);border-color:rgba(246,196,83,.26);
}
.tool-name{font-size:15px;font-weight:700;color:#fff;}
.tool-desc{margin-top:4px;font-size:12px;color:var(--ui-muted);line-height:1.5;}

.portal-foot{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--ui-line);
  color:#61728a;font-size:12px;line-height:1.9;
}
.portal-foot p{margin:0;}

/* ==========================================================================
   管理后台
   ========================================================================== */
body.adm-body{
  font-size:14px;background:var(--ui-bg);
}
.adm-app{display:flex;min-height:100vh;}
.adm-side{
  flex:0 0 236px;width:236px;position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;gap:26px;
  padding:24px 16px 20px;
  background:#0c1523;border-right:1px solid var(--ui-line);
}
.adm-side-brand{
  display:flex;align-items:center;gap:11px;padding:0 8px;
  text-decoration:none;color:#fff;
}
.adm-side-logo{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#141414;
  background:linear-gradient(135deg,#ffd968,#f0a93b);
}
.adm-side-brand span:last-child{
  font-size:14px;font-weight:700;line-height:1.2;
}
.adm-side-brand small{
  display:block;margin-top:2px;font-size:10px;font-weight:500;
  color:#71849e;letter-spacing:.12em;
}
.adm-side-nav{display:flex;flex-direction:column;gap:4px;}
.adm-side-nav a{
  display:flex;align-items:center;gap:12px;
  padding:11px 13px;border-radius:10px;
  color:var(--ui-muted);text-decoration:none;font-size:13.5px;
  border:1px solid transparent;transition:.15s;
}
.adm-side-nav a i{
  font-style:normal;font-size:10px;font-weight:700;letter-spacing:.08em;
  color:#5d7089;width:20px;
}
.adm-side-nav a:hover{color:#fff;background:rgba(255,255,255,.05);}
.adm-side-nav a.active{
  color:var(--ui-amber);background:rgba(246,196,83,.10);
  border-color:rgba(246,196,83,.26);
}
.adm-side-nav a.active i{color:var(--ui-amber);}
.adm-side-foot{
  margin-top:auto;display:flex;flex-direction:column;gap:6px;
  padding-top:16px;border-top:1px solid var(--ui-line);
}
.adm-side-foot a{
  color:#6f829c;text-decoration:none;font-size:12.5px;padding:8px 13px;border-radius:8px;
}
.adm-side-foot a:hover{color:#fff;background:rgba(255,255,255,.05);}

.adm-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.adm-top{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 30px;border-bottom:1px solid var(--ui-line);background:rgba(10,17,29,.6);
}
.adm-top-title span{
  display:block;font-size:11px;letter-spacing:.14em;color:#64768e;
}
.adm-top-title h1{
  margin:4px 0 0;font-size:22px;font-weight:800;color:#fff;letter-spacing:-.01em;
}
.adm-top-user{display:flex;align-items:center;gap:10px;}
.adm-top-avatar{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#141414;
  background:linear-gradient(135deg,#8fe3ff,#58c8f2);
}
.adm-top-user span:last-child{display:flex;flex-direction:column;line-height:1.2;}
.adm-top-user b{font-size:13px;color:#fff;}
.adm-top-user small{font-size:11px;color:#71849e;}
.adm-content{padding:26px 30px 64px;}
.adm-content .flash{margin:0 0 20px;}

/* 统计卡片 */
.adm-stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:14px;margin:0 0 22px;
}
.adm-stat{
  padding:18px 20px;border-radius:15px;
  border:1px solid var(--ui-line);background:var(--ui-card);
}
.adm-stat .num{
  font-size:26px;font-weight:800;line-height:1.15;color:#fff;
}
.adm-stat .lab{margin-top:6px;font-size:12px;color:var(--ui-muted);letter-spacing:.03em;}

/* 内容卡片 */
.adm-card{
  padding:22px 24px;border-radius:16px;
  border:1px solid var(--ui-line);background:var(--ui-card);margin:0 0 18px;
}
.adm-card h2{
  margin:0 0 14px;font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em;
}
.adm-card h3{
  margin:18px 0 10px;font-size:14px;font-weight:700;color:var(--ui-amber);
}
.adm-muted{color:var(--ui-muted);font-size:12.5px;line-height:1.7;}

/* 表格 */
.adm-scroll{overflow-x:auto;border:1px solid var(--ui-line);border-radius:12px;}
.adm-table{width:100%;border-collapse:collapse;font-size:13px;}
.adm-table th,.adm-table td{
  padding:11px 14px;text-align:left;vertical-align:middle;
  border-bottom:1px solid var(--ui-line);
}
.adm-table th{
  background:rgba(255,255,255,.035);color:#93a5bd;
  font-size:11px;font-weight:700;letter-spacing:.08em;white-space:nowrap;
}
.adm-table tbody tr:last-child td{border-bottom:none;}
.adm-table tbody tr:hover td{background:rgba(255,255,255,.03);}
.adm-table td.actions{white-space:nowrap;}
.adm-table td.actions .btn{margin-right:4px;}
.adm-table input[type=text],.adm-table input[type=number],.adm-table select{
  background:#0a1320;color:var(--ui-text);
  border:1px solid var(--ui-line-strong);border-radius:8px;
  padding:6px 10px;font-size:13px;font-family:inherit;min-height:34px;
}
.adm-table input:focus,.adm-table select:focus{
  outline:none;border-color:var(--ui-amber);
  box-shadow:0 0 0 3px rgba(246,196,83,.12);
}
.adm-table .adm-form{flex-wrap:nowrap;align-items:center;gap:6px;}

/* 表单 */
.adm-form{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;}
.adm-field{
  display:flex;flex-direction:column;gap:6px;
  font-size:11.5px;color:#8b9db5;letter-spacing:.04em;
}
.adm-field.grow{flex:1 1 240px;}
.adm-field input[type=text],.adm-field input[type=password],.adm-field input[type=number],
.adm-field input[type=file],.adm-field select,.adm-field textarea,
textarea.adm-textarea{
  background:#0a1320;color:var(--ui-text);
  border:1px solid var(--ui-line-strong);border-radius:10px;
  padding:9px 12px;font-size:13.5px;font-family:inherit;min-height:40px;
  transition:border-color .15s,box-shadow .15s;
}
.adm-field textarea,textarea.adm-textarea{min-height:92px;resize:vertical;line-height:1.6;}
.adm-field input:focus,.adm-field select:focus,.adm-field textarea:focus,
textarea.adm-textarea:focus{
  outline:none;border-color:var(--ui-amber);
  box-shadow:0 0 0 3px rgba(246,196,83,.12);
}
.adm-field input[type=text].w-sm{width:110px;}
.adm-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.adm-inline{display:inline;}
.adm-badge{
  display:inline-block;padding:2px 9px;border-radius:999px;
  font-size:10.5px;letter-spacing:.04em;
  border:1px solid var(--ui-line-strong);color:var(--ui-muted);
}
.adm-badge.admin{border-color:rgba(246,196,83,.5);color:var(--ui-amber);background:rgba(246,196,83,.08);}
.adm-badge.ok{border-color:rgba(88,200,242,.5);color:var(--ui-cyan);}

/* 后台标签页 */
.adm-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 18px;}
.adm-tabs a{
  text-decoration:none;color:var(--ui-muted);
  border:1px solid var(--ui-line);border-radius:9px;
  padding:8px 15px;font-size:12.5px;background:rgba(255,255,255,.03);
  transition:.15s;
}
.adm-tabs a:hover{color:#fff;border-color:var(--ui-line-strong);}
.adm-tabs a.active{
  color:#181205;background:linear-gradient(135deg,#ffd968,#f0a93b);
  border-color:transparent;font-weight:700;
}

/* 后台快捷入口（沿用首页卡片结构） */
.home-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;}
.home-card{
  display:block;text-decoration:none;color:var(--ui-text);
  background:rgba(255,255,255,.03);border:1px solid var(--ui-line);
  border-radius:13px;padding:16px 18px;transition:.15s;
}
.home-card:hover{
  border-color:rgba(246,196,83,.42);background:rgba(255,255,255,.055);
  transform:translateY(-2px);
}
.home-card .kicker{
  color:var(--ui-cyan);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
}
.home-card .name{margin:.35rem 0 .3rem;font-size:15px;font-weight:800;color:#fff;}
.home-card .desc{color:var(--ui-muted);font-size:12px;line-height:1.6;}
.home-card .meta{margin-top:.6rem;color:#71849e;font-size:11px;}

/* 后台按钮尺寸覆盖（style.css 的 20px 基准对后台偏大） */
.adm-body .btn,.portal .btn{
  font-size:13px;min-height:38px;padding:8px 16px;border-radius:10px;
  border-width:1px;font-weight:600;
}
.adm-body .btn.small,.portal .btn.small{font-size:12px;min-height:32px;padding:6px 12px;}
.adm-body .btn-primary{
  background:linear-gradient(135deg,#ffd968,#f0a93b);color:#181205;border-color:transparent;
}
.adm-body .btn-primary:hover{filter:brightness(1.04);}
.adm-body .btn-err{background:rgba(239,83,80,.14);border-color:rgba(239,83,80,.55);color:#ff9a97;}
.adm-body .btn-err:hover{background:rgba(239,83,80,.22);}

/* 表单里的小提示 */
.adm-body label.adm-field input[type=checkbox]{min-height:0;}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:980px){
  .hero{grid-template-columns:1fr;padding:36px 30px;gap:30px;}
  .hero h1{font-size:32px;}
  .auth-shell{grid-template-columns:1fr;max-width:520px;min-height:0;}
  .auth-hero{padding:40px 36px;}
  .auth-hero h1{font-size:30px;}
  .auth-points{display:none;}
  .auth-hero-foot{margin-top:26px;}
  .auth-card{padding:40px 36px;}
  /* 小屏：侧栏改为顶部横向导航，保证所有入口仍可点击 */
  .adm-app{flex-direction:column;}
  .adm-side{
    position:static;width:100%;height:auto;flex:0 0 auto;
    flex-direction:row;align-items:center;gap:14px;
    padding:12px 16px;
  }
  .adm-side-brand span:last-child{display:none;}
  .adm-side-nav{flex-direction:row;overflow-x:auto;gap:2px;}
  .adm-side-nav a{padding:8px 11px;white-space:nowrap;}
  .adm-side-nav a i{display:none;}
  .adm-side-foot{
    margin:0 0 0 auto;padding:0;border:none;flex-direction:row;gap:2px;
  }
  .adm-side-foot a{padding:8px 10px;white-space:nowrap;}
  .adm-main{width:100%;}
}
@media (max-width:720px){
  .appbar{height:auto;flex-wrap:wrap;padding:10px 14px;gap:8px;}
  .appbar-nav{order:3;width:100%;overflow-x:auto;}
  .appbar-nav a{padding:7px 10px;font-size:13px;}
  .appbar-user-text{display:none;}
  .portal-wrap{padding:20px 16px 48px;}
  .hero{padding:28px 22px;}
  .hero h1{font-size:27px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .adm-top{padding:16px 18px;}
  .adm-content{padding:18px 16px 48px;}
  .section-head{flex-direction:column;gap:6px;}
  .flash{margin:12px 14px 0;}
}