*{box-sizing:border-box}html,body{width:100%;min-height:100%;margin:0}body.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef7ff 0%,#ffffff 100%);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:#111827;padding:24px}.login-box{width:420px;max-width:calc(100vw - 32px);background:#fff;border:1px solid #dce8f7;border-radius:20px;padding:32px 30px 30px;box-shadow:0 20px 60px rgba(42,86,140,.12)}h1{font-size:28px;margin:0 0 20px;font-weight:900}.input-wrap{width:100%;height:46px;border:1px solid #d5e3f4;border-radius:12px;background:#fff;display:flex;align-items:center;padding:0 14px;margin-bottom:14px}.input-wrap input{display:block;width:100%;height:100%;border:0;outline:0;background:transparent;font-size:15px;color:#1f2937;line-height:46px;padding:0}.input-wrap input::placeholder{color:#6b7280}.login-btn{width:100%;height:46px;border:0;border-radius:12px;background:#1f6fe5;color:#fff;font-size:15px;font-weight:900;cursor:pointer;display:flex;align-items:center;justify-content:center}.msg{color:#d33;margin-bottom:12px;font-weight:700}

/* 后台主界面 */
*{box-sizing:border-box}body.admin-page{margin:0;background:linear-gradient(135deg,#f3f8ff,#fff);font-family:-apple-system,BlinkMacSystemFont,"Microsoft YaHei",Arial;color:#14243a}.wrap{max-width:1280px;margin:0 auto;padding:26px}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.top h1{margin:0;font-size:26px}.btns a,.btn{height:38px;padding:0 16px;border-radius:11px;border:0;background:#176ee8;color:#fff;text-decoration:none;font-weight:800;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.btn.gray{background:#6b7b90}.card{background:rgba(255,255,255,.9);border:1px solid #dde8f6;border-radius:18px;padding:20px;margin-bottom:18px;box-shadow:0 14px 38px rgba(40,70,110,.09)}h2{font-size:19px;margin:0 0 16px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.grid6{display:grid;grid-template-columns:1.1fr 1.25fr .8fr .7fr 1.1fr 1.1fr .9fr .7fr .55fr;gap:8px;align-items:start;margin-bottom:10px;padding-bottom:10px;border-bottom:1px dashed #dbe5f2}.adrow{display:grid;grid-template-columns:.8fr 1.5fr 1.5fr 80px;gap:10px;margin-bottom:10px}input,select,textarea{width:100%;border:1px solid #d5e2f2;border-radius:10px;background:#fff;height:38px;padding:0 10px;font-size:14px}textarea{height:128px;padding-top:10px;line-height:1.55}.msg{padding:12px 16px;background:#eaf6ef;border:1px solid #bde6cc;color:#14783c;border-radius:12px;margin-bottom:16px;font-weight:800;transition:opacity .35s ease,transform .35s ease}.msg.is-hide{opacity:0;transform:translateY(-6px);pointer-events:none}.small{font-size:12px;color:#7b8aa0;margin-top:8px}.danger{background:#e74848!important}.row{display:flex;gap:10px;margin-top:12px}.check{display:flex;align-items:center;gap:6px;font-size:13px;color:#53657d}.check input{width:auto;height:auto}.label{font-size:13px;color:#60718a;margin:2px 0 7px;font-weight:800}.stats-table{width:100%;border-collapse:collapse}.stats-table th,.stats-table td{border-bottom:1px solid #e5edf7;padding:10px 8px;text-align:left;font-size:13px}.stats-table th{color:#53657d;background:#f6f9fd}.hotnum{font-weight:900;color:#e35d10}
.fileline{display:grid;grid-template-columns:1.4fr 1fr;gap:10px;margin-top:10px}.brand-admin{display:grid;grid-template-columns:260px 1fr;gap:18px;align-items:start}.brand-preview{height:96px;border:1px solid #dbe7f6;border-radius:16px;background:linear-gradient(135deg,#f8fbff,#eef6ff);display:flex;align-items:center;gap:12px;padding:14px}.brand-preview img{width:52px;height:52px;border-radius:14px;object-fit:contain;filter:drop-shadow(0 10px 18px rgba(35,132,255,.22))}.brand-preview b{display:block;font-size:18px}.brand-preview span{display:block;color:#7b8aa0;font-size:12px;margin-top:5px}.icon-preview{display:flex;align-items:center;gap:8px}.icon-preview img{width:32px;height:32px;border-radius:10px;object-fit:cover;border:1px solid #dbe7f6}.upload-mini{font-size:12px;color:#7b8aa0;line-height:1.35}.grid-add-card{display:grid;grid-template-columns:1fr 1fr .8fr 1fr 1fr 1fr .8fr .6fr;gap:12px}.grid-add-card .wide{grid-column:span 2}@media(max-width:900px){.brand-admin,.fileline,.grid-add-card{grid-template-columns:1fr}.grid-add-card .wide{grid-column:auto}}
@media(max-width:900px){.grid,.grid2,.grid6,.adrow{grid-template-columns:1fr}.wrap{padding:14px}.top{display:block}.btns{margin-top:12px}}

.featured-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.featured-row{display:grid;grid-template-columns:1fr 90px 130px;gap:10px;align-items:center;border:1px solid #e3ecf8;background:#f8fbff;border-radius:12px;padding:10px}.feature-check{font-weight:800;color:#24364d}.feature-sort{height:34px}.feature-cat{font-size:12px;color:#7b8aa0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:900px){.featured-list,.featured-row{grid-template-columns:1fr}.feature-cat{white-space:normal}}

/* 后台分页切换 */
.admin-tabs{position:sticky;top:0;z-index:20;display:flex;gap:10px;flex-wrap:wrap;margin:0 0 16px;padding:12px;background:rgba(243,248,255,.92);backdrop-filter:blur(12px);border:1px solid #dce8f6;border-radius:16px;box-shadow:0 12px 32px rgba(40,70,110,.08)}
.admin-tabs button,.cat-filter button{height:38px;border:1px solid #d8e5f5;background:#fff;color:#50647d;border-radius:11px;padding:0 15px;font-weight:900;cursor:pointer;transition:.18s ease}
.admin-tabs button:hover,.cat-filter button:hover{border-color:#9dc2f2;color:#176ee8;transform:translateY(-1px)}
.admin-tabs button.active,.cat-filter button.active{background:#176ee8;border-color:#176ee8;color:#fff;box-shadow:0 10px 22px rgba(23,110,232,.18)}
.admin-section{display:none}
.admin-section.is-active{display:block}
.cat-filter{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px;padding:10px;background:#f7fbff;border:1px solid #e1ebf8;border-radius:14px}
.card-cat-hidden{display:none!important}
@media(max-width:900px){.admin-tabs{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.admin-tabs button,.cat-filter button{width:100%}.cat-filter{display:grid;grid-template-columns:repeat(2,1fr)}}


/* 广告图片上传管理 */
.ad-upload-row{display:block;border:1px solid #dce8f6;background:linear-gradient(180deg,#f9fcff,#f2f7ff);border-radius:14px;padding:12px;margin-bottom:12px}
.ad-upload-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;color:#21354f}
.ad-upload-row>input{margin-bottom:10px}
.ad-upload-box{display:grid;grid-template-columns:150px 1fr 220px 92px;gap:10px;align-items:center;margin:8px 0;padding:10px;border:1px solid #e4eef9;background:#fff;border-radius:12px}
.ad-preview{width:150px;height:56px;border:1px dashed #c8d9ee;background:#f6faff;border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden;color:#8ca0b8;font-size:12px}
.ad-preview img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:900px){.ad-upload-box{grid-template-columns:1fr}.ad-preview{width:100%;height:90px}}