/* ============================================================
 * 家电排行榜 · 全局样式（浅色清爽风格）
 * ============================================================ */
:root {
  --primary: #E1251B;        /* 京东红：购买按钮 */
  --primary-dark: #C21612;
  --navy: #1F2A44;
  --bg: #F5F6F8;
  --card: #FFFFFF;
  --line: #E7E9EE;
  --text: #22293A;
  --text2: #6B7280;
  --gold: #F5A623;
  --silver: #9AA3B2;
  --bronze: #C97B4A;
  --ok: #0E9F6E;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(31, 42, 68, .06), 0 6px 20px rgba(31, 42, 68, .05);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.topbar { background: var(--navy); color: #fff; position: sticky; top: 0; z-index: 50; }
.topbar .wrap { display: flex; align-items: center; gap: 24px; height: 58px; }
.logo { font-size: 19px; font-weight: 600; letter-spacing: .5px; white-space: nowrap; }
.logo em { color: #fff; font-style: normal; }
.nav-cats { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.nav-cats::-webkit-scrollbar { display: none; }
.nav-cats a { padding: 6px 12px; border-radius: 8px; font-size: 14px; color: #D7DCE8; white-space: nowrap; }
.nav-cats a:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav-cats a.on { background: var(--primary); color: #fff; }
.topbar .right { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.btn-admin { font-size: 13px; color: #D7DCE8; border: 1px solid rgba(255,255,255,.25); padding: 5px 12px; border-radius: 8px; }
.btn-admin:hover { color: #fff; border-color: #fff; }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #1F2A44 0%, #2C3E6B 100%); color: #fff; padding: 56px 0 60px; }
/* 家电简笔画细纹：只铺右侧 58%，左侧渐变淡出，不与文字重叠 */
.hero::before { content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 58%; background-image: url('../images/hero-pattern.svg'); background-size: 440px 220px; opacity: 0.95; pointer-events: none; -webkit-mask-image: linear-gradient(to right, transparent, rgba(0,0,0,.6) 22%, #000 46%); mask-image: linear-gradient(to right, transparent, rgba(0,0,0,.6) 22%, #000 46%); }
.hero .wrap { position: relative; }
.hero h1 { font-size: 34px; font-weight: 700; letter-spacing: 1px; }
.hero p { margin-top: 10px; color: #B9C3D8; font-size: 15px; }
.hero .stats { display: flex; gap: 36px; margin-top: 24px; }
.hero .stats b { font-size: 22px; color: #FFC53D; display: block; }
.hero .stats span { font-size: 13px; color: #B9C3D8; }

/* ---------- 品类卡片 ---------- */
.section { margin: 34px 0; }
.section-title { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.section-title h2 { font-size: 21px; font-weight: 600; }
.section-title span { color: var(--text2); font-size: 13px; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cat-card { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border: 1px solid var(--line); transition: transform .15s ease, box-shadow .15s ease; display: block; position: relative; overflow: hidden; }
.cat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(31,42,68,.12); }
/* 品类水印：右下角写实产品图（低透明度装饰，不拦截点击；multiply 让白底融入卡片） */
.cat-card .cat-wm { position: absolute; right: -2px; bottom: -4px; width: 120px; height: 120px; opacity: .26; pointer-events: none; line-height: 0; z-index: 0; }
/* 热水器竖长机身：整体上移，避免下边沿贴卡边 */
.cat-heater .cat-wm { bottom: 18px; right: 6px; }
/* 空调：主体左移，避免太贴右侧边沿 */
.cat-ac .cat-wm { right: 18px; }
/* 厨电：主体左移+上移，避免太贴右/下侧边沿 */
.cat-kitchen .cat-wm { right: 18px; bottom: 14px; }
.cat-card .cat-wm img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; display: block; }
.cat-card .head, .cat-card .rank-list, .cat-card .go { position: relative; z-index: 1; }
.cat-card .head { display: flex; align-items: center; gap: 12px; }
.cat-icon { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: linear-gradient(160deg, #ffffff, #e9f0f8); border: 1px solid #e2eaf3; flex: none; }
.cat-icon svg { width: 100%; height: 100%; display: block; }
.cat-card h3 { font-size: 17px; font-weight: 600; }
.cat-card .desc { color: var(--text2); font-size: 12.5px; }
.cat-card .rank-list { margin-top: 14px; border-top: 2px solid var(--line); padding-top: 10px; }
.cat-card .rank-list div { display: flex; justify-content: space-between; font-size: 13px; padding: 4px 0; color: var(--text); }
.cat-card .rank-list b { font-weight: 500; color: var(--primary); font-size: 13px; }
.cat-card .go { margin-top: 10px; font-size: 13px; color: var(--primary); font-weight: 500; }
/* 六大品类分隔线：实线 + 莫兰迪色系（低饱和灰调） */
.cat-ac .rank-list      { border-top-color: #9DB89C; } /* 空调·莫兰迪绿 */
.cat-fridge .rank-list  { border-top-color: #8FA8C9; } /* 冰箱·莫兰迪蓝 */
.cat-washer .rank-list  { border-top-color: #8FB8B5; } /* 洗衣机·莫兰迪青 */
.cat-tv .rank-list      { border-top-color: #B39B84; } /* 电视·莫兰迪棕 */
.cat-kitchen .rank-list { border-top-color: #C2948F; } /* 厨电·莫兰迪红 */
.cat-heater .rank-list  { border-top-color: #D1A584; } /* 热水器·莫兰迪橙 */

/* ---------- 榜单页 ---------- */
.page-head { padding: 30px 0 22px; }
.crumbs { color: var(--text2); font-size: 13px; margin-bottom: 10px; }
.crumbs a:hover { color: var(--primary); }
.page-head h1 { font-size: 26px; font-weight: 700; }
.page-head .sub { color: var(--text2); margin-top: 6px; }
.rank-tabs { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.rank-tab { padding: 10px 20px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--text2); }
.rank-tab small { display: block; font-size: 11px; font-weight: 400; color: var(--text2); opacity: .8; }
.rank-tab.on { background: var(--navy); color: #fff; border-color: var(--navy); }
.rank-tab.on small { color: #B9C3D8; }
.rank-desc { background: #EEF2FA; border: 1px solid #DCE3F2; color: #3A4A6E; border-radius: 10px; padding: 10px 16px; font-size: 13px; margin-bottom: 18px; }

/* ---------- 榜单卡片 ---------- */
.board { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); overflow: hidden; margin-bottom: 14px; }
.board .item { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.board .item:last-child { border-bottom: none; }
.board .item:hover { background: #FAFBFC; }
.rank-badge { flex: 0 0 52px; text-align: center; }
.rank-badge .n { width: 34px; height: 34px; margin: 0 auto; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; background: #EEF0F4; color: var(--text2); }
.rank-badge .n .num { line-height: 1; }
.rank-badge .n .crown { line-height: 0; display: block; }
/* TOP1 金冠 / TOP2 银冠 / TOP3 铜冠 */
.rank-badge .n.top1, .rank-badge .n.top2, .rank-badge .n.top3 { height: 46px; flex-direction: column; gap: 2px; padding-top: 3px; }
.rank-badge .n.top1 { background: linear-gradient(165deg, #FFD970, #F5A623); color: #fff; box-shadow: 0 3px 10px rgba(245,166,35,.38); }
.rank-badge .n.top2 { background: linear-gradient(165deg, #EEF3FA, #AEB9C9); color: #fff; box-shadow: 0 3px 10px rgba(174,185,201,.35); }
.rank-badge .n.top3 { background: linear-gradient(165deg, #EBC192, #C97B4A); color: #fff; box-shadow: 0 3px 10px rgba(201,123,74,.35); }
.rank-badge .score { font-size: 11.5px; color: var(--text2); margin-top: 4px; }
.rank-badge .score b { color: var(--primary); font-size: 12px; }
/* 榜单对比参数突出显示（金橙高亮标签） */
.rank-param { display: inline-flex; align-items: center; gap: 7px; margin-top: 8px; background: linear-gradient(135deg, #FFF8E3, #FFECB8); border: 1px solid #F0D492; color: #7A5A00; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 500; box-shadow: 0 1px 4px rgba(214,158,46,.15); }
.rank-param span { opacity: .72; font-size: 12px; }
.rank-param b { font-size: 15px; font-weight: 700; color: #8A6100; }
.p-img { flex: 0 0 86px; height: 86px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 26px; color: #fff; font-weight: 600; }
.p-img .noimg { font-size: 11px; font-weight: 400; text-align: center; line-height: 1.3; opacity: .95; padding: 0 6px; }
.p-info { flex: 1; min-width: 0; }
.p-info .name { font-size: 16px; font-weight: 600; }
.p-info .model { color: var(--text2); font-size: 12px; margin-left: 8px; font-weight: 400; }
.p-info .note { color: var(--text2); font-size: 13px; margin-top: 4px; }
.p-params { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.param-chip { font-size: 12px; background: #F2F4F8; border: 1px solid var(--line); color: #4B5568; padding: 2px 9px; border-radius: 6px; white-space: nowrap; }
.param-chip b { color: var(--text); font-weight: 500; }
.p-buy { flex: 0 0 150px; text-align: right; }
.p-buy .price { font-size: 20px; font-weight: 700; color: var(--primary); }
.p-buy .price small { font-size: 12px; font-weight: 400; color: var(--text2); }
.jd-btn { display: inline-block; margin-top: 8px; background: var(--primary); color: #fff; padding: 8px 18px; border-radius: 8px; font-size: 13.5px; font-weight: 500; }
.jd-btn:hover { background: var(--primary-dark); }
.jd-btn.empty { background: #E8EAF0; color: var(--text2); }
.board-foot { background: #FAFBFC; padding: 10px 22px; font-size: 12px; color: var(--text2); border-top: 1px solid var(--line); }

/* ---------- 后台 ---------- */
.admin-body { display: flex; min-height: calc(100vh - 58px); }
.admin-side { width: 200px; background: var(--navy); color: #fff; padding: 18px 12px; flex-shrink: 0; }
.admin-side .side-title { font-size: 13px; color: #8E9AB5; padding: 4px 12px 10px; }
.admin-side a { display: block; padding: 10px 12px; border-radius: 8px; color: #D7DCE8; font-size: 14px; margin-bottom: 4px; }
.admin-side a:hover { background: rgba(255,255,255,.08); }
.admin-side a.on { background: var(--primary); color: #fff; }
.admin-main { flex: 1; padding: 24px 28px; min-width: 0; }
.admin-main h2 { font-size: 20px; margin-bottom: 16px; }
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.toolbar .spacer { flex: 1; }
.toolbar select, .toolbar input[type=text] { border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; font-size: 13.5px; background: #fff; color: var(--text); }
.btn { border: none; border-radius: 8px; padding: 8px 16px; font-size: 13.5px; background: #EFF1F5; color: var(--text); }
.btn:hover { background: #E4E7ED; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.ghost { background: transparent; border: 1px solid var(--line); }
.btn.danger { background: #FDECEC; color: #C21612; }
.btn.sm { padding: 4px 10px; font-size: 12.5px; border-radius: 6px; }

table.grid { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
table.grid th { background: #F4F6FA; font-size: 13px; text-align: left; padding: 11px 14px; color: var(--text2); font-weight: 500; white-space: nowrap; }
table.grid td { padding: 11px 14px; border-top: 1px solid var(--line); font-size: 13.5px; vertical-align: middle; }
table.grid tr:hover td { background: #FAFBFC; }
.tag { display: inline-block; font-size: 11.5px; padding: 2px 8px; border-radius: 5px; background: #EEF2FA; color: #3A4A6E; margin: 1px 2px; }
.tag.rank1 { background: #FDF3E0; color: #B97A10; }
.tag.rank2 { background: #EEF0F4; color: #5F6B7F; }
.tag.rank3 { background: #FBEDE4; color: #B05A24; }

/* 模态框 */
.modal-mask { position: fixed; inset: 0; background: rgba(23, 30, 45, .5); z-index: 100; display: none; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 16px; width: 100%; max-width: 760px; padding: 24px 28px; }
.modal h3 { font-size: 17px; margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-row .full { grid-column: 1 / -1; }
.form-item label { display: block; font-size: 12.5px; color: var(--text2); margin-bottom: 5px; }
.form-item input[type=text], .form-item input[type=number], .form-item textarea, .form-item select { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; font-size: 13.5px; color: var(--text); background: #fff; font-family: inherit; }
.form-item textarea { resize: vertical; min-height: 60px; }
.form-item input:focus, .form-item textarea:focus, .form-item select:focus { outline: none; border-color: var(--primary); }
.kv-row { display: flex; gap: 8px; margin-bottom: 8px; }
.kv-row input { flex: 1; }
.kv-row .btn-del { flex: 0 0 32px; }
.rank-editor { background: #F7F8FB; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; }
.rank-editor .re-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.rank-editor select, .rank-editor input { border: 1px solid var(--line); border-radius: 7px; padding: 6px 10px; font-size: 13px; background: #fff; }
.rank-editor input.re-rank { width: 64px; }
.rank-editor input.re-score { width: 70px; }
.rank-editor input.re-note { flex: 1; min-width: 180px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* 提示条 */
.toast { position: fixed; left: 50%; bottom: 36px; transform: translateX(-50%); background: #22293A; color: #fff; padding: 10px 22px; border-radius: 999px; font-size: 13.5px; z-index: 200; opacity: 0; transition: opacity .25s; pointer-events: none; }
.toast.show { opacity: 1; }
.toast.err { background: #C21612; }

.empty { text-align: center; color: var(--text2); padding: 60px 0; font-size: 14px; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .board .item { flex-wrap: wrap; gap: 12px; }
  .p-buy { flex: 1 1 100%; text-align: left; display: flex; align-items: center; gap: 14px; }
  .p-buy .price { font-size: 18px; }
  .jd-btn { margin-top: 0; }
  .admin-side { width: 150px; }
}
@media (max-width: 560px) {
  .cat-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
  .hero .stats { gap: 20px; }
  .hero::before { width: 100%; opacity: 0.35; -webkit-mask-image: linear-gradient(to bottom, transparent 10%, rgba(0,0,0,.5) 45%, #000 80%); mask-image: linear-gradient(to bottom, transparent 10%, rgba(0,0,0,.5) 45%, #000 80%); }
  .admin-body { flex-direction: column; }
  .admin-side { width: 100%; display: flex; overflow-x: auto; padding: 10px; gap: 4px; }
  .admin-side .side-title { display: none; }
  .admin-side a { margin-bottom: 0; white-space: nowrap; }
  .form-row { grid-template-columns: 1fr; }
  table.grid { font-size: 12.5px; }
}