:root{
  --primary:#2f6fed;
  --primary-deep:#1f56c9;
  --primary-soft:#eaf1ff;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#6b7280;
  --line:#e6eaf2;
  --bg:#f5f7fb;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(23,43,84,.07);
  --shadow-sm:0 4px 14px rgba(23,43,84,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- 顶栏 ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.3px}
.logo-badge{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#6ea8ff);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;box-shadow:0 6px 14px rgba(47,111,237,.28)}
.logo-badge.sm{width:24px;height:24px;border-radius:8px;font-size:12px;box-shadow:none}
.logo-badge.lg{width:52px;height:52px;border-radius:16px;font-size:24px;margin:0 auto 14px}
.nav{display:flex;gap:2px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{flex:0 0 auto;white-space:nowrap;padding:8px 11px;border-radius:10px;color:var(--ink-2);font-weight:500;font-size:13.5px}
.nav a:hover{background:#f1f4fa}
.nav a.on{color:var(--primary);background:var(--primary-soft);font-weight:600}
.acct{display:flex;align-items:center;gap:12px}
.dot{width:6px;height:6px;border-radius:50%;background:#22c55e;display:inline-block;margin-right:6px}
.link-quiet{color:var(--muted);font-size:13px}
.link-quiet:hover{color:var(--ink)}

/* 考试类型 · 主导航 */
.typenav{border-top:1px solid #f0f3f9;background:#fff}
.tn-inner{display:flex;align-items:center;gap:12px;height:46px;overflow-x:auto;scrollbar-width:none}
.tn-inner::-webkit-scrollbar{display:none}
.tn-label{flex:0 0 auto;font-size:12.5px;color:var(--muted);font-weight:700;letter-spacing:.3px}
.tn-chips{display:flex;gap:8px;flex:1 1 auto;min-width:0}
.tchip{flex:0 0 auto;padding:5px 14px;border-radius:999px;font-size:13px;color:var(--ink-2);background:#f6f8fc;border:1px solid transparent;transition:.15s;white-space:nowrap}
.tchip:hover{color:var(--primary);background:var(--primary-soft)}
.tchip.on{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 4px 10px rgba(47,111,237,.2)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;border-radius:12px;font-weight:600;transition:.18s;font-family:inherit}
.btn.primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,111,237,.22)}
.btn.primary:hover{background:var(--primary-deep);transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--ink-2);border:1px solid var(--line)}
.btn.ghost:hover{border-color:#c8d4ea;color:var(--primary)}
.btn.sm{padding:8px 14px;font-size:13px;border-radius:10px}
.btn.lg{padding:13px 26px;font-size:15px}
.btn.block{width:100%;margin-top:14px;padding:11px 0}
.btn.disabled, .btn.disabled:hover{background:#e8ecf4;color:#94a3b8;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 英雄区 ---------- */
.hero{background:
  radial-gradient(1000px 420px at 12% -10%, #e3edff 0%, rgba(227,237,255,0) 70%),
  radial-gradient(800px 380px at 88% 0%, #eaf5ff 0%, rgba(234,245,255,0) 65%),
  #fff;
  border-bottom:1px solid var(--line);
  padding:52px 0 44px;
}
.hero-inner{text-align:center}
.hero-badge{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.5px;margin-bottom:18px}
.hero h1{margin:0 0 14px;font-size:34px;line-height:1.35;letter-spacing:-.5px;font-weight:800}
.hero-sub{color:var(--muted);margin:0 0 26px;font-size:15px}
.searchbar{display:flex;align-items:center;gap:10px;max-width:680px;margin:0 auto;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:16px;padding:8px 8px 8px 16px}
.searchbar input{flex:1;height:44px;border:0;outline:none;font-size:15px;background:transparent;color:var(--ink);font-family:inherit}
.searchbar .s-ico{color:#9aa8bf}
.searchbar button{height:44px;padding:0 24px;border-radius:12px;border:0;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit}
.searchbar button:hover{background:var(--primary-deep)}
.hero-stats{display:flex;justify-content:center;gap:56px;margin-top:34px}
.hero-stats>div{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-size:24px;font-weight:800;color:var(--ink)}
.hero-stats span{font-size:12.5px;color:var(--muted)}

/* ---------- 公告 ---------- */
.notice{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:12px;padding:14px 18px;margin-top:22px;box-shadow:var(--shadow-sm)}
.notice-tag{flex:none;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;padding:3px 10px;border-radius:8px}
.notice-text{color:var(--ink-2);font-size:13.5px;line-height:1.7}

/* ---------- 筛选 ---------- */
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 22px 12px;margin-top:22px;box-shadow:var(--shadow-sm)}
.filter-row{display:flex;gap:16px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed #edf1f7}
.filter-row:last-child{border-bottom:0}
.filter-row.compact{padding:9px 0}
.f-label{flex:none;width:72px;color:var(--muted);font-size:13px;padding-top:5px}
.f-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:5px 14px;border-radius:999px;font-size:13px;color:var(--ink-2);background:#f6f8fc;border:1px solid transparent;transition:.15s}
.chip:hover{color:var(--primary);background:var(--primary-soft)}
.chip.on{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 4px 10px rgba(47,111,237,.2)}

/* ---------- 首页布局 ---------- */
.home-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;margin-top:26px;padding-bottom:40px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.sec-head h2{margin:0;font-size:19px;font-weight:800;letter-spacing:-.2px}
.more{color:var(--muted);font-size:13px}
.more:hover{color:var(--primary)}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.pcard{display:flex;flex-direction:column;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 14px;box-shadow:var(--shadow-sm);transition:.2s;min-height:150px}
.pcard-link{display:flex;flex-direction:column;flex:1;color:inherit;padding-right:22px}
.pcard.picked{border-color:var(--primary);outline:2px solid var(--primary);outline-offset:-2px}
.pick{position:absolute;top:12px;right:12px;z-index:3;line-height:0;cursor:pointer}
.pick input{width:18px;height:18px;margin:0;accent-color:var(--primary);cursor:pointer}
.list-hint{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;color:#8b98ad;font-size:12.5px;margin:4px 0 14px}
.pick-tip{color:#9aa8bf}
.batch-bar{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:80;display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 38px rgba(15,35,70,.20);padding:10px 16px}
.batch-bar[hidden]{display:none}
.batch-bar .bb-count{font-size:13.5px;color:var(--ink-2)}
.batch-bar .bb-count b{color:var(--primary);font-size:16px;margin:0 2px}
.batch-bar form{margin:0}
.pcard:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(23,43,84,.10);border-color:#d7e2f8}
.pcard-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.tag{font-size:11.5px;line-height:1;padding:5px 8px;border-radius:6px;background:#f1f4fa;color:#5b6b85;font-weight:500}
.tag.t-subject{background:#e8f0ff;color:#2b5bcc}
.tag.t-type{background:#fff1e6;color:#b45309}
.tag.t-ans{background:#e8f8ef;color:#047857}
.tag.t-hot{background:#feecec;color:#c53030}
.pcard-title{margin:0 0 8px;font-size:15.5px;line-height:1.5;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:47px}
.pcard-sub{color:var(--muted);font-size:12.5px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pcard-meta{display:flex;align-items:center;gap:6px;color:#94a3b8;font-size:12px;margin-top:auto}
.pcard-meta .sep{color:#d5dce8}
.pcard-time{margin-left:auto;color:#b3bfd1}

/* 侧栏 */
.side-col{display:flex;flex-direction:column;gap:18px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm)}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.panel h3{margin:0;font-size:15.5px;font-weight:800}
.rank{margin:0;padding:0;list-style:none}
.rank li{display:flex;gap:10px;align-items:center;padding:9px 0;border-bottom:1px dashed #eff2f8;font-size:13px}
.rank li:last-child{border-bottom:0}
.rank .rk{flex:none;width:20px;height:20px;border-radius:6px;background:#f1f4fa;color:#8794a8;font-size:11.5px;display:flex;align-items:center;justify-content:center;font-weight:700}
.rank .rk.top{background:var(--primary);color:#fff}
.rank a{flex:1;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.45}
.rank a:hover{color:var(--primary)}
.rank em{flex:none;color:#aab6c8;font-style:normal;font-size:11.5px}
.contact-panel p{color:var(--muted);font-size:13px;margin:6px 0 12px}
.contact-line{display:flex;justify-content:space-between;padding:8px 0;border-top:1px dashed #eff2f8;font-size:13px}
.contact-line span{color:var(--muted)}
.contact-line b{color:var(--ink)}

/* 空态 */
.empty{background:#fff;border:1px dashed #dbe3f0;border-radius:var(--radius);padding:56px 20px;text-align:center;color:var(--muted)}
.empty.tall{padding:90px 20px;margin:40px 0}
.empty-ico{font-size:34px;font-weight:800;color:#c9d5e8;margin-bottom:10px}
.empty p{margin:0 0 16px}

/* ---------- 列表页 ---------- */
.page-head{padding-top:22px}
.crumb{display:flex;gap:8px;align-items:center;color:#98a5ba;font-size:12.5px;margin-bottom:16px}
.crumb a{color:#7b8aa3}
.crumb a:hover{color:var(--primary)}
.crumb b{color:var(--ink-2);font-weight:600}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.tb-search{display:flex;gap:8px;flex:1;max-width:460px}
.tb-search input{flex:1;height:38px;border:1px solid var(--line);border-radius:10px;padding:0 14px;outline:none;font-family:inherit;font-size:13.5px;background:#fff}
.tb-search input:focus{border-color:var(--primary)}
.tb-sort{display:flex;gap:4px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:4px}
.tb-sort a{padding:6px 12px;border-radius:7px;font-size:13px;color:var(--muted)}
.tb-sort a.on{background:var(--primary-soft);color:var(--primary);font-weight:600}
.result-line{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:6px 0 18px}
.result-line b{color:var(--ink);font-size:15px}
.kw-tag{background:#fff;border:1px solid var(--line);padding:3px 10px;border-radius:999px;font-size:12.5px}
.kw-tag a{color:#a0aec4;margin-left:6px}

/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin:34px 0 50px;flex-wrap:wrap}
.pg{min-width:36px;height:36px;padding:0 12px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13px}
.pg:hover{border-color:var(--primary);color:var(--primary)}
.pg.on{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:700}
.pg.dis{color:#c3cddd;background:#f8fafd;cursor:not-allowed}
.pg.dots{background:transparent;border:0;color:#b6c2d4}

/* ---------- 详情页 ---------- */
.detail-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;margin-top:4px;padding-bottom:40px}
.detail-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;box-shadow:var(--shadow-sm)}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.detail-title{margin:0 0 12px;font-size:25px;line-height:1.45;font-weight:800;letter-spacing:-.3px}
.detail-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:13px;padding-bottom:16px;border-bottom:1px solid #f0f3f9}
.detail-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:20px 0 6px}
.action-tip{color:var(--muted);font-size:13px}
.action-tip b{color:var(--primary)}
.preview-box{margin-top:18px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#f7f9fd;min-height:220px}
.preview-empty{padding:44px 20px;text-align:center;color:var(--muted)}
.pv-ico{font-size:30px;margin-bottom:8px}
.preview-empty p{margin:0 0 16px;font-size:13.5px}
.preview-box iframe{display:block;width:100%;height:640px;border:0;background:#525659}
.detail-intro{margin-top:24px;padding-top:20px;border-top:1px solid #f0f3f9}
.detail-intro h3{margin:0 0 10px;font-size:15px;font-weight:800}
.intro-body{color:var(--ink-2);font-size:13.5px;line-height:1.8}
.detail-side{display:flex;flex-direction:column;gap:18px}
.quota-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed #eff2f8;font-size:13px}
.quota-row span{color:var(--muted)}
.quota-row b{color:var(--ink)}
.muted{color:var(--muted)}

/* ---------- 登录 ---------- */
.login-wrap{display:grid;grid-template-columns:420px minmax(0,1fr);gap:40px;align-items:center;padding:56px 20px 70px;max-width:1000px}
.login-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px 32px;box-shadow:var(--shadow);text-align:center}
.login-head h2{margin:0 0 4px;font-size:22px;font-weight:800}
.login-head p{color:var(--muted);font-size:13px;margin:0 0 22px}
.field-label{display:block;text-align:left;font-size:13px;color:var(--ink-2);font-weight:600;margin-bottom:8px}
.code-input input{width:100%;height:52px;border:1px solid var(--line);border-radius:12px;padding:0 16px;font-size:16px;letter-spacing:1px;outline:none;text-align:center;font-family:"SF Mono",Menlo,Consolas,monospace;text-transform:uppercase}
.code-input input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,111,237,.10)}
.field-tip{color:#9aa8bf;font-size:12.5px;text-align:left;margin:10px 0 18px;line-height:1.6}
.form-error{background:#fff1f0;color:#b91c1c;border:1px solid #ffd4d0;border-radius:10px;padding:10px 14px;font-size:13px;margin-bottom:16px;text-align:left}
.login-foot{margin-top:20px;padding-top:16px;border-top:1px dashed #eff2f8;color:var(--muted);font-size:12.5px}
.login-foot b{color:var(--ink)}
.login-aside h3{font-size:17px;margin:0 0 14px}
.login-aside ul{margin:0;padding-left:18px;color:var(--muted);font-size:13.5px;line-height:2.1}

/* ---------- 会员中心 ---------- */
.account-wrap{padding-bottom:50px}
.account-hero{background:linear-gradient(135deg,var(--primary),#5f95ff);border-radius:20px;padding:28px 32px;color:#fff;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:0 16px 36px rgba(47,111,237,.24)}
.acc-label{font-size:12.5px;opacity:.8}
.acc-code{font-size:24px;font-weight:800;letter-spacing:2px;margin:6px 0 8px;font-family:"SF Mono",Menlo,Consolas,monospace}
.acc-sub{font-size:12.5px;opacity:.8}
.acc-stats{display:flex;gap:36px;align-items:center}
.acc-stat{text-align:center}
.acc-stat b{display:block;font-size:24px;font-weight:800}
.acc-stat span{font-size:12px;opacity:.8}
.acc-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:22px;margin-top:22px}
.table{width:100%;border-collapse:collapse;font-size:13px}
.table th{text-align:left;color:var(--muted);font-weight:600;padding:10px 8px;border-bottom:1px solid #eff2f8}
.table td{padding:11px 8px;border-bottom:1px dashed #f1f4fa;color:var(--ink-2)}
.table td a{color:var(--ink-2)}
.table td a:hover{color:var(--primary)}
.mini-list{display:flex;flex-direction:column}
.mini-item{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-bottom:1px dashed #f1f4fa}
.mini-title{font-size:13px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.mini-title:hover{color:var(--primary)}
.mini-meta{font-size:11.5px;color:#a8b4c6}
.acc-actions{margin-top:16px}
.pad{padding:6px 0}

/* ---------- 单页 ---------- */
.doc-wrap{padding-bottom:50px}
.doc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow-sm);max-width:860px;margin:0 auto}
.doc-card h1{font-size:24px;margin:0 0 18px;font-weight:800}
.doc-body{color:var(--ink-2);font-size:14px;line-height:1.95}
.doc-body h3{font-size:15.5px;margin:22px 0 8px;color:var(--ink)}
.doc-body p{margin:6px 0}

/* ---------- 页脚 ---------- */
.footer{background:#fff;border-top:1px solid var(--line);padding:40px 0 26px;margin-top:auto}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:16px;margin-bottom:10px}
.foot-text{color:var(--muted);font-size:12.5px;line-height:1.9;margin:0}
.foot-text a{color:var(--muted)}
.foot-title{font-size:13px;font-weight:700;margin-bottom:10px;color:var(--ink-2)}
.foot-link{display:block;color:var(--muted);font-size:12.5px;padding:3px 0}
.foot-link:hover{color:var(--primary)}
.copy{border-top:1px solid #f0f3f9;margin-top:26px;padding-top:16px;color:#aab6c8;font-size:12px;text-align:center}

/* flash */
.flash{margin-top:14px;padding:11px 16px;border-radius:10px;font-size:13px}
.flash.ok{background:#e9f9f0;color:#047857;border:1px solid #c9eeda}
.flash.error{background:#fff1f0;color:#b91c1c;border:1px solid #ffd4d0}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .home-grid,.detail-wrap{grid-template-columns:1fr}
  .side-col,.detail-side{flex-direction:row;flex-wrap:wrap}
  .side-col .panel,.detail-side .panel{flex:1;min-width:260px}
  .login-wrap{grid-template-columns:1fr;gap:24px;padding-top:36px}
  .login-aside{display:none}
  .acc-grid{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}
@media (max-width:720px){
  .bar{height:auto;flex-wrap:wrap;gap:10px;padding:8px 0 6px}
  .nav{order:3;flex:1 0 100%;overflow-x:auto;padding-bottom:2px}
  .brand,.acct{flex:0 0 auto}
  .brand-text{font-size:16px}
  .hero{padding:34px 0 30px}
  .hero h1{font-size:23px}
  .hero-sub{font-size:13.5px}
  .searchbar{padding:6px 6px 6px 12px}
  .searchbar input{font-size:14px;height:40px}
  .searchbar button{height:40px;padding:0 16px;font-size:14px}
  .hero-stats{gap:28px;margin-top:24px}
  .hero-stats b{font-size:19px}
  .container{padding:0 14px}
  .cards{grid-template-columns:1fr}
  .filter-panel{padding:4px 14px 8px}
  .f-label{width:100%;padding-top:6px}
  .filter-row{flex-direction:column;gap:8px}
  .f-chips{gap:6px}
  .chip{padding:5px 11px;font-size:12.5px}
  .pcard{min-height:auto;padding:15px 15px 12px}
  .pcard-title{font-size:14.5px;min-height:auto}
  .detail-card{padding:18px 16px}
  .detail-title{font-size:19px}
  .detail-actions{gap:10px}
  .btn.lg{padding:11px 18px;font-size:14px}
  .preview-box iframe{height:460px}
  .foot-grid{grid-template-columns:1fr;gap:20px}
  .account-hero{padding:20px}
  .acc-stats{gap:22px}
  .acc-code{font-size:18px;letter-spacing:1px}
  .doc-card{padding:22px 18px}
  .tb-search{max-width:none;width:100%}
  .batch-bar{left:12px;right:12px;bottom:12px;transform:none;justify-content:space-between;gap:10px;padding:10px 12px}
  .batch-bar .bb-count{font-size:12.5px}
  .login-wrap{padding:28px 14px 46px}
  .login-card{padding:26px 20px}
}
@media (max-width:400px){
  .hero-stats{flex-wrap:wrap;gap:14px 22px}
}