:root{
  --ink:#1d1b18;
  --muted:#8b857a;
  --line:#e6e1d6;
  --paper:#f5f2eb;
  --card:#ffffff;
  --red:#c0553d;
  --red-dark:#a5462f;
  --navy:#3b4a6b;
  --khaki:#d9cbb4;
  --amber:#d99a2b;
  --mono:'DM Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --shadow:0 16px 40px rgba(29,25,18,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans SC',-apple-system,'PingFang SC',sans-serif}
button{font-family:inherit}

/* ===== 顶部导航 ===== */
.top-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1180px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:11px;background:none;border:0;padding:0;cursor:pointer;color:inherit;text-decoration:none}
.brand-logo{width:38px;height:38px;border-radius:9px;display:block}
.brand-text{text-align:left;line-height:1.25}
.brand-text strong{display:block;font-size:16px;letter-spacing:.08em;font-weight:900}
.brand-text em{display:block;font:500 9px var(--mono);font-style:normal;color:var(--muted);letter-spacing:.22em;margin-top:2px}
.header-nav{display:flex;gap:4px}
.header-nav button,.header-nav a{border:0;background:none;padding:8px 14px;border-radius:8px;font:500 14px inherit;color:#6f6a5e;cursor:pointer;transition:.15s;text-decoration:none}
.header-nav button:hover,.header-nav a:hover{color:var(--ink)}
.header-nav button.active,.header-nav a.active{background:var(--ink);color:#fff;font-weight:700}
.user-chip{margin-left:auto;display:flex;align-items:center;gap:9px}
.avatar{width:32px;height:32px;background:var(--ink);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px}
.user-meta strong,.user-meta span{display:block}
.user-meta strong{font-size:12px}
.user-meta span{font-size:10px;color:var(--muted)}
.logout-btn{border:1px solid var(--line);background:var(--card);color:#7a7368;border-radius:7px;padding:6px 9px;font-size:11px;cursor:pointer}
.logout-btn:hover{border-color:var(--red);color:var(--red)}

/* ===== 移动端底部标签栏 ===== */
.tabbar{display:none}

/* ===== 页面容器 ===== */
.page{max-width:1180px;margin:0 auto;padding:36px 24px 64px}
.site-footer{border-top:1px solid var(--line);padding:24px;text-align:center;font:500 10px var(--mono);letter-spacing:.2em;color:var(--muted)}

/* ===== 首页 Hero ===== */
.hero{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--shadow)}
.hero-copy{min-width:0;flex:1}
.hero-badge{display:inline-block;border:1px solid var(--red);color:var(--red);padding:5px 11px;border-radius:4px;font:500 10px var(--mono);letter-spacing:.18em;margin-bottom:18px}
.hero h1{font-size:38px;line-height:1.25;margin:0 0 12px;letter-spacing:-.02em;font-weight:900}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p{margin:0 0 24px;color:var(--muted);font-size:14px}
.hero-figure{flex:0 0 auto;width:250px}
.hero-figure img{width:100%;display:block;border-radius:16px}
.search-wrap{position:relative;width:min(360px,100%)}
.search-wrap input{width:100%;height:46px;border-radius:11px;border:1px solid var(--line);padding:0 16px 0 42px;font:14px inherit;outline:none;background:var(--paper)}
.search-wrap input:focus{border-color:var(--ink)}
.search-icon{position:absolute;left:15px;top:12px;color:#a49d8f;font-size:18px}
.hero-chips{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}

/* ===== 通用组件 ===== */
.pill{height:34px;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:0 14px;color:#6f6a5e;font:500 12px inherit;cursor:pointer}
.pill.active{background:var(--ink);border-color:var(--ink);color:#fff}
.pill:hover:not(.active){border-color:#c9c2b2}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:40px 0 16px}
.section-head h2{font-size:18px;margin:0;font-weight:900;letter-spacing:-.01em}
.text-button{color:var(--red);font-size:12px;font-weight:700;cursor:pointer;background:0;border:0;padding:0}
.btn-primary{background:var(--red);color:#fff;border:0;border-radius:9px;padding:11px 18px;font:700 13px inherit;cursor:pointer}
.btn-primary:hover{background:var(--red-dark)}
.btn-secondary{background:#f1ede2;color:#6f6a5e;border:0;border-radius:9px;padding:11px 18px;font:500 13px inherit;cursor:pointer}
.action-group{display:flex;align-items:center;gap:8px}
.action-btn{border:1px solid var(--line);border-radius:8px;padding:7px 12px;font:700 12px inherit;cursor:pointer;transition:.15s;background:var(--card)}
.action-btn.approve{background:#e7f0e6;border-color:#c9dfc6;color:#3f7244}
.action-btn.approve:hover{background:#dcebd9;border-color:#98c095}
.action-btn.reject{background:#f7e6e0;border-color:#edcabf;color:var(--red)}
.action-btn.reject:hover{background:#f1d9d0;border-color:#d99d8c}

/* ===== 应用卡片 ===== */
.app-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(236px,1fr));gap:14px}
.app-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;cursor:pointer;transition:.18s;display:flex;flex-direction:column}
.app-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfc7b6}
.app-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:18px;margin-bottom:14px}
.app-card h3{font-size:14px;margin:0 0 6px;font-weight:700;display:flex;align-items:center;gap:7px}
.app-card h3 .tag{font:500 9px var(--mono);letter-spacing:.08em;color:var(--red);border:1px solid currentColor;border-radius:3px;padding:2px 5px}
.app-card p{font-size:11.5px;color:var(--muted);line-height:1.65;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:10.5px;color:#8a8478;gap:8px}
.stars{color:var(--amber);letter-spacing:1px;white-space:nowrap}
.stars b{color:#6f6a5e;font-weight:500;margin-left:2px}
.card-cat{font:500 9px var(--mono);letter-spacing:.1em;color:#6f6a5e;border:1px solid var(--line);border-radius:3px;padding:2px 6px;white-space:nowrap}

/* ===== 公告条（工装字标风格：黑底白字） ===== */
.announcement{background:var(--ink);color:#fff;border-radius:16px;margin-top:36px;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.announcement .mono-label{display:inline-block;font:500 9px var(--mono);letter-spacing:.2em;color:var(--khaki);margin-bottom:7px}
.announcement strong{font-size:15px;letter-spacing:.04em}
.announcement p{margin:6px 0 0;color:#b8b2a4;font-size:12px}
.announcement button{border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent;border-radius:8px;padding:10px 15px;font:500 12px inherit;cursor:pointer;white-space:nowrap}
.announcement button:hover{border-color:#fff}

/* ===== 应用中心 ===== */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.page-head h1{font-size:30px;margin:12px 0 8px;font-weight:900;letter-spacing:-.02em}
.page-head p{margin:0;color:var(--muted);font-size:13px}
.toolbar{display:flex;align-items:center;gap:9px;margin:26px 0 20px;flex-wrap:wrap}
.filter-select{height:34px;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:0 10px;color:#6f6a5e;font:500 12px inherit}

/* ===== 我的应用 ===== */
.mine-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:22px;overflow-x:auto}
.review-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.review-card .stars{display:block;margin-bottom:8px}
.review-card p{margin:0 0 10px;font-size:13px;line-height:1.7}
.review-card footer{font-size:10.5px;color:var(--muted)}

/* ===== 管理后台 ===== */
.admin-banner{background:#efe9db;border:1px solid #ddd3bd;padding:18px 22px;border-radius:14px;display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:28px;flex-wrap:wrap}
.admin-banner .hero-badge{margin-bottom:10px;background:#fff8ed}
.admin-banner h1{font-size:24px;line-height:1.2;margin:0;font-weight:900;letter-spacing:-.02em}
.admin-banner p{font-size:11.5px;color:#7c7462;margin:5px 0 0}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.stat-card .label{font:500 10px var(--mono);letter-spacing:.12em;color:var(--muted)}
.stat-card .value{font:700 28px var(--mono);margin:10px 0 5px}
.stat-card .delta{font-size:10.5px;color:var(--red)}
.stat-card .delta.up{color:#4e7a52}

/* ===== 表格 ===== */
.table-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.table-scroll{overflow-x:auto}
.table-card table{width:100%;border-collapse:collapse;font-size:12.5px;min-width:560px}
.table-card th{background:#f7f4ec;color:#8b857a;text-align:left;font:500 10px var(--mono);letter-spacing:.1em;padding:13px 18px;white-space:nowrap}
.table-card td{padding:15px 18px;border-top:1px solid #f0ece2;white-space:nowrap}
.badge{padding:4px 8px;border-radius:5px;font-size:10.5px;font-weight:500}
.badge.pending{background:#f9f1d8;color:#9a6b12}
.badge.approved{background:#e7f0e6;color:#4e7a52}
.badge.rejected{background:#f7e6e0;color:#b04a35}

/* ===== 弹窗 & 提示 ===== */
.modal-backdrop{position:fixed;inset:0;background:rgba(24,20,14,.45);display:grid;place-items:center;padding:20px;z-index:30}
.modal{background:var(--card);border-radius:16px;width:min(520px,100%);padding:30px;box-shadow:0 30px 70px rgba(0,0,0,.25);position:relative;max-height:90vh;overflow:auto}
.modal.app-modal{width:min(860px,100%)}
.modal-close{position:absolute;right:18px;top:14px;background:transparent;border:0;font-size:24px;color:#a49d8f;cursor:pointer}
.modal h2{margin:0 0 7px;font-size:20px;font-weight:900}
.modal .sub{color:var(--muted);font-size:12.5px;margin:0 0 22px}
.form-row{margin:15px 0}
.form-row label{font-size:11.5px;display:block;margin-bottom:7px;font-weight:700}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px}
.form-row textarea,.form-row input,.form-row select{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 12px;font:13px inherit;resize:vertical;background:var(--paper)}
.form-row textarea:focus,.form-row input:focus,.form-row select:focus{border-color:var(--ink);outline:none}
.icon-picker{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin-top:8px}
.icon-choice{height:32px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font:700 15px var(--mono);cursor:pointer;transition:.15s}
.icon-choice:hover,.icon-choice.active{border-color:var(--red);background:#f7e6e0;color:var(--red)}
.form-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:24px}
.toast{position:fixed;bottom:88px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:13px 20px;border-left:3px solid var(--red);border-radius:9px;font-size:12.5px;z-index:40;box-shadow:var(--shadow)}
.empty{padding:46px 20px;background:var(--card);border:1px dashed #cfc7b6;border-radius:14px;text-align:center;color:var(--muted);font-size:12.5px}

/* ===== 登录页 ===== */
.login-body{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f5f2eb 0%,#ede5d6 100%)}
.login-shell{width:min(920px,100%);display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:stretch}
.login-brand,.login-card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.login-brand{padding:42px;display:flex;flex-direction:column;justify-content:center}
.login-brand img{width:70px;height:70px;border-radius:16px;margin-bottom:22px}
.login-brand h1{font-size:34px;line-height:1.2;margin:0 0 12px;font-weight:900}
.login-brand p{margin:0;color:var(--muted);line-height:1.8;font-size:14px}
.login-card{padding:34px}
.login-card h2{margin:0 0 8px;font-size:22px;font-weight:900}
.login-card p{margin:0 0 22px;color:var(--muted);font-size:12px}
.login-submit{width:100%;margin-top:8px;height:42px}
.feishu-login{width:100%;height:42px;margin-top:10px;background:#3370ff;color:#fff;border:1px solid #3370ff;font-weight:700;transition:.15s}
.feishu-login:hover{background:#245bdb;border-color:#245bdb}
.feishu-login:disabled{opacity:.72;cursor:not-allowed}
.login-message{min-height:20px;margin-top:12px;color:var(--red);font-size:12px;text-align:center}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .hero{flex-direction:column;padding:32px 28px;text-align:center}
  .hero-copy{display:flex;flex-direction:column;align-items:center}
  .hero-figure{width:210px}
  .page{padding:26px 18px 56px}
  .login-shell{grid-template-columns:1fr}
}
@media(max-width:719px){
  .header-nav{display:none}
  .header-inner{padding:0 16px;height:58px}
  .brand-text em{display:none}
  .user-meta{display:none}
  body{padding-bottom:68px}
  .tabbar{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:6px 10px calc(6px + env(safe-area-inset-bottom));z-index:20}
  .tabbar button,.tabbar a{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 0;font:500 11px inherit;color:#8b857a;cursor:pointer;text-decoration:none}
  .tabbar button.active,.tabbar a.active{color:var(--red);font-weight:700}
  .tab-icon{font-size:19px;line-height:1}
  .hero h1{font-size:29px}
  .announcement{flex-direction:column;align-items:flex-start}
  .section-head{margin-top:30px}
}
@media(max-width:480px){
  .app-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
  .app-card{padding:14px}
  .app-icon{width:38px;height:38px;border-radius:10px;font-size:15px}
  .search-wrap{width:100%}
  .form-grid{grid-template-columns:1fr}
  .login-brand,.login-card{padding:24px}
}