/* =====================================================
   君语贤 - 2024 全新改版
   设计风格：现代大气 · 白底黑字 · 极简高级
   ===================================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-rgb: 37,99,235;
  --accent: #f97316;
  --accent-rgb: 249,115,22;

  --ink-900: #0a0a0f;
  --ink-800: #111827;
  --ink-700: #1f2937;
  --ink-600: #374151;
  --ink-500: #6b7280;
  --ink-400: #9ca3af;
  --ink-300: #d1d5db;
  --ink-200: #e5e7eb;
  --ink-100: #f3f4f6;
  --ink-50:  #f9fafb;

  --surface:       #ffffff;
  --surface-raised:#f9fafb;
  --border:        #e5e7eb;
  --border-strong: #d1d5db;

  --nav-h: 64px;
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --shadow:    0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.1),0 4px 12px rgba(0,0,0,.06);
  --shadow-xl: 0 24px 64px rgba(0,0,0,.12);

  --ease: cubic-bezier(.4,0,.2,1);
  --dur: .2s;
  --max-w: 1200px;
  --sidebar-w: 300px;
}

/* ---------- 重置 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%;}
body{
  font-family: "Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",
    "PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",
    sans-serif;
  background:var(--surface);
  color:var(--ink-800);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
ul,ol{list-style:none;}
button{border:none;background:none;cursor:pointer;font:inherit;}
input,select{font:inherit;}

/* ---------- 工具 ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px;}

/* ---------- 标签徽章 ---------- */
.tag-badge{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:20px;
  font-size:.75rem;font-weight:500;letter-spacing:.01em;
  background:var(--ink-100);color:var(--ink-600);
  border:1px solid var(--border);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tag-badge:hover{background:var(--primary);color:#fff;border-color:var(--primary);}


/* ====================================================
   导航栏
==================================================== */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--border);
  height:var(--nav-h);
}
.header-inner{
  display:flex;align-items:center;gap:0;
  height:var(--nav-h);
}

/* Logo */
.site-logo{
  display:flex;align-items:center;gap:9px;
  font-size:1.05rem;font-weight:700;
  color:var(--ink-900);letter-spacing:-.02em;
  flex-shrink:0;margin-right:32px;
}
.logo-mark{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,#2563eb,#7c3aed);
  display:flex;align-items:center;justify-content:center;
  font-size:.9rem;font-weight:800;color:#fff;flex-shrink:0;
}

/* 主导航 */
.main-nav{flex:1;}
.nav-list{display:flex;align-items:center;gap:0;}
.nav-item{position:relative;}
.nav-link{
  display:flex;align-items:center;gap:3px;
  padding:6px 12px;border-radius:6px;
  font-size:.875rem;font-weight:500;
  color:var(--ink-600);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.nav-link:hover,.nav-link.active{color:var(--ink-900);background:var(--ink-100);}
.nav-link.active{font-weight:600;}
.nav-link .chevron{width:13px;height:13px;opacity:.5;transition:transform var(--dur) var(--ease);}
.nav-item:hover .chevron{transform:rotate(180deg);}

/* 下拉 */
.dropdown{
  position:absolute;top:calc(100% + 6px);left:0;
  min-width:150px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  padding:5px;
  opacity:0;pointer-events:none;
  transform:translateY(-8px) scale(.97);
  transform-origin:top left;
  /* 显示快(0ms)，隐藏慢(150ms) — 给鼠标移过间隙留时间 */
  transition:opacity .18s var(--ease),transform .18s var(--ease);
  transition-delay:0ms;
  z-index:300;
}
/* 用伪元素填充 nav-link 底部到 dropdown 顶部的 6px 间隙，防止鼠标经过时触发 mouseleave */
.nav-item::after{
  content:'';
  position:absolute;
  top:100%;left:0;right:0;
  height:10px;
  display:none;
}
.nav-item:hover::after,.nav-item.is-open::after{display:block;}
.nav-item:hover .dropdown,
.nav-item.is-open .dropdown{
  opacity:1;pointer-events:auto;
  transform:translateY(0) scale(1);
  transition-delay:0ms;
}
.dropdown-link{
  display:block;padding:7px 12px;border-radius:6px;
  font-size:.84rem;color:var(--ink-600);
  transition:background var(--dur),color var(--dur);
}
.dropdown-link:hover{background:var(--ink-100);color:var(--ink-900);}

/* 搜索框 */
.header-search{
  flex-shrink:0;margin-left:auto;
  display:flex;align-items:center;gap:8px;
  background:var(--ink-100);border:1px solid transparent;
  border-radius:8px;padding:0 14px;height:36px;
  transition:border-color var(--dur),background var(--dur),box-shadow var(--dur);
}
.header-search:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(var(--primary-rgb),.12);
}
.header-search input{
  background:none;border:none;outline:none;
  font-size:.84rem;color:var(--ink-800);width:150px;
}
.header-search input::placeholder{color:var(--ink-400);}
.header-search svg{color:var(--ink-400);flex-shrink:0;}

/* 汉堡 */
.menu-toggle{
  display:none;flex-direction:column;gap:5px;
  padding:6px;border-radius:6px;
  transition:background var(--dur);
}
.menu-toggle:hover{background:var(--ink-100);}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink-700);border-radius:2px;transition:transform var(--dur),opacity var(--dur);}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ====================================================
   面包屑
==================================================== */
.breadcrumb-bar{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:10px 0;
}
.breadcrumb{
  display:flex;align-items:center;gap:6px;
  font-size:.8rem;color:var(--ink-500);flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-500);transition:color var(--dur);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--ink-300);}
.breadcrumb .current{color:var(--ink-800);font-weight:500;}

/* ====================================================
   页面主体布局
==================================================== */
.page-body{padding:36px 0 64px;}
.layout-main{
  display:grid;
  grid-template-columns:1fr var(--sidebar-w);
  gap:32px;align-items:start;
}
.content-area{min-width:0;}

/* ====================================================
   文章卡片（列表用）
==================================================== */
.article-list{display:flex;flex-direction:column;gap:1px;}

.article-card{
  background:var(--surface);
  border-radius:0;
  display:grid;grid-template-columns:200px 1fr;gap:0;
  padding:22px 0;
  border-bottom:1px solid var(--border);
  transition:background var(--dur);
  position:relative;
}
.article-card::before{
  content:'';position:absolute;left:-24px;top:0;bottom:0;width:3px;
  background:var(--primary);border-radius:0 2px 2px 0;
  opacity:0;transform:scaleY(.5);
  transition:opacity var(--dur),transform var(--dur);
}
.article-card:hover::before{opacity:1;transform:scaleY(1);}
.article-card:hover{background:var(--ink-50);}

.article-card .thumb{
  width:192px;height:130px;border-radius:var(--radius);
  overflow:hidden;background:var(--ink-100);
  flex-shrink:0;margin-right:20px;
  position:relative;
}
.article-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s var(--ease);
}
.article-card:hover .thumb img{transform:scale(1.06);}

.article-card .card-body{
  display:flex;flex-direction:column;gap:8px;
  padding-left:20px;
}
.article-card .card-title{
  font-size:1.05rem;font-weight:700;line-height:1.45;
  color:var(--ink-900);
  transition:color var(--dur);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  letter-spacing:-.01em;
}
.article-card:hover .card-title{color:var(--primary);}
.article-card .card-excerpt{
  font-size:.875rem;color:var(--ink-500);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1;
}
.article-card .card-meta{
  display:flex;align-items:center;gap:14px;
  font-size:.775rem;color:var(--ink-400);flex-wrap:wrap;
  margin-top:2px;
}
.card-meta svg{width:13px;height:13px;}
.card-meta .meta-item{display:flex;align-items:center;gap:4px;}
.card-meta .cat-link{color:var(--primary);font-weight:600;}
.card-meta .hot-badge{color:var(--accent);font-weight:600;}
.card-tags{display:flex;gap:6px;flex-wrap:wrap;}

/* ====================================================
   分页
==================================================== */
.pagination{
  display:flex;align-items:center;justify-content:center;
  gap:4px;margin-top:36px;
}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:38px;border-radius:8px;
  font-size:.85rem;font-weight:500;
  border:1px solid var(--border);background:var(--surface);
  color:var(--ink-700);padding:0 10px;
  transition:background var(--dur),border-color var(--dur),color var(--dur),box-shadow var(--dur);
}
.pagination a:hover{background:var(--ink-100);border-color:var(--border-strong);}
.pagination .current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}
.pagination .disabled{opacity:.35;cursor:not-allowed;pointer-events:none;}
.pagination .page_nowindex{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}

/* ====================================================
   侧边栏
==================================================== */
.sidebar{display:flex;flex-direction:column;gap:20px;}

.sidebar-widget{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
}
.widget-head{
  padding:13px 18px;font-size:.82rem;font-weight:700;
  color:var(--ink-500);letter-spacing:.06em;text-transform:uppercase;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
}
.widget-body{padding:14px 18px;}

/* 侧边文章列表 */
.side-article-list{display:flex;flex-direction:column;gap:0;}
.side-article-item{
  display:grid;grid-template-columns:64px 1fr;gap:10px;
  align-items:start;padding:10px 0;
  border-bottom:1px solid var(--border);
}
.side-article-item:last-child{border-bottom:none;}
.side-article-item .s-thumb{
  width:64px;height:48px;border-radius:6px;
  overflow:hidden;background:var(--ink-100);flex-shrink:0;
}
.side-article-item .s-thumb img{width:100%;height:100%;object-fit:cover;}
.side-article-item .s-title{
  font-size:.82rem;line-height:1.5;color:var(--ink-700);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--dur);
}
.side-article-item:hover .s-title{color:var(--primary);}
.side-article-item .s-date{font-size:.73rem;color:var(--ink-400);margin-top:4px;}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:7px;padding:14px 18px;}
.tag-cloud a{
  display:inline-block;padding:4px 12px;border-radius:20px;
  font-size:.775rem;background:var(--ink-50);
  border:1px solid var(--border);color:var(--ink-600);
  transition:background var(--dur),color var(--dur),border-color var(--dur);
}
.tag-cloud a:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900);}

/* ====================================================
   首页 HERO — 清新白底版
==================================================== */
.hero{
  background:#fff;
  padding:72px 0 80px;
  position:relative;overflow:hidden;
}
/* 底部彩色光晕 */
.hero::before{
  content:'';position:absolute;
  top:-160px;left:-120px;
  width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,.10) 0%,transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:'';position:absolute;
  bottom:-140px;right:-80px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(16,185,129,.09) 0%,transparent 70%);
  pointer-events:none;
}
/* 极淡网格纹理 */
.hero-grid-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(99,102,241,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(99,102,241,.04) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;
  gap:64px;align-items:center;
  max-width:var(--max-w);margin:0 auto;padding:0 24px;
}
.hero-text{}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(99,102,241,.2);
  background:rgba(99,102,241,.06);
  border-radius:20px;padding:5px 14px;
  font-size:.78rem;color:rgba(99,102,241,.9);
  letter-spacing:.04em;margin-bottom:22px;font-weight:600;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:#22c55e;flex-shrink:0;box-shadow:0 0 6px #22c55e;}
.hero-h1{
  font-size:3rem;font-weight:800;line-height:1.15;
  color:var(--ink-900);letter-spacing:-.04em;margin-bottom:16px;
}
.hero-h1 .hl{
  background:linear-gradient(90deg,#6366f1,#8b5cf6,#06b6d4);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-desc{
  font-size:1rem;color:var(--ink-500);
  line-height:1.8;margin-bottom:34px;max-width:460px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  padding:12px 24px;border-radius:9px;
  font-weight:700;font-size:.9rem;
  transition:transform var(--dur),box-shadow var(--dur),background var(--dur);
  box-shadow:0 4px 14px rgba(37,99,235,.35);
}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,.45);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1.5px solid var(--border);color:var(--ink-700);
  padding:12px 24px;border-radius:9px;
  font-weight:500;font-size:.9rem;background:#fff;
  transition:border-color var(--dur),background var(--dur),color var(--dur),box-shadow var(--dur);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.08);}

/* Hero 右侧统计卡 */
.hero-cards{display:flex;flex-direction:column;gap:12px;}
.hero-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;padding:18px 22px;
  display:flex;align-items:center;gap:16px;
  transition:box-shadow var(--dur),border-color var(--dur),transform var(--dur);
  box-shadow:var(--shadow-sm);
}
.hero-card:hover{box-shadow:var(--shadow);border-color:#c7d2fe;transform:translateX(4px);}
.hero-card .hc-icon{
  width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;flex-shrink:0;
}
.hero-card .hc-num{
  font-size:1.55rem;font-weight:800;color:var(--ink-900);line-height:1;
}
.hero-card .hc-num sub{font-size:.8rem;font-weight:600;color:var(--ink-500);vertical-align:baseline;}
.hero-card .hc-label{font-size:.8rem;color:var(--ink-400);margin-top:3px;}

/* ====================================================
   统计条（首页 hero 下方）
==================================================== */
.highlight-bar{
  background:#fff;
  border-bottom:1px solid var(--border);
  padding:0;
}
.highlight-bar-inner{
  display:flex;align-items:stretch;
  divide-x:1px solid var(--border);
  overflow-x:auto;
}
.hl-item{
  flex:1;min-width:160px;
  display:flex;align-items:center;gap:10px;
  padding:16px 24px;
  border-right:1px solid var(--border);
  font-size:.84rem;color:var(--ink-500);
  white-space:nowrap;
}
.hl-item:last-child{border-right:none;}
.hl-item strong{color:var(--ink-900);font-weight:700;}
.hl-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}

/* ====================================================
   Section 公共
==================================================== */
.section{padding:56px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:32px;
}
.section-kicker{
  font-size:.75rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--primary);margin-bottom:6px;
}
.section-title{
  font-size:1.75rem;font-weight:800;color:var(--ink-900);
  letter-spacing:-.03em;line-height:1.2;
}
.section-more{
  display:inline-flex;align-items:center;gap:5px;
  font-size:.84rem;font-weight:600;color:var(--ink-500);
  padding:7px 14px;border-radius:8px;border:1px solid var(--border);
  transition:color var(--dur),border-color var(--dur),background var(--dur);
  flex-shrink:0;
}
.section-more:hover{color:var(--ink-900);border-color:var(--ink-300);background:var(--ink-50);}

/* ====================================================
   首页分类紧凑标签栏（方案A）
==================================================== */
.cat-tabs-bar{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  padding:16px 0 28px;
  border-top:1px solid var(--border);
  margin-top:8px;
}
.cat-tab-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 16px;
  border-radius:20px;
  font-size:.84rem;
  font-weight:500;
  color:var(--ink-600);
  background:var(--surface);
  border:1px solid var(--border);
  transition:background var(--dur),color var(--dur),border-color var(--dur),box-shadow var(--dur);
  white-space:nowrap;
}
.cat-tab-item span{letter-spacing:-.01em;}
.cat-tab-item:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  box-shadow:0 4px 12px rgba(var(--primary-rgb),.25);
}

/* ====================================================
   分类卡片网格（栏目页/其他页保留使用）
.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
}
.cat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:22px 20px;
  display:flex;flex-direction:column;gap:14px;
  transition:box-shadow var(--dur),transform var(--dur),border-color var(--dur);
  cursor:pointer;
  position:relative;overflow:hidden;
}
.cat-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.04),transparent);
  opacity:0;transition:opacity var(--dur);
}
.cat-card:hover{
  box-shadow:var(--shadow);transform:translateY(-3px);
  border-color:var(--ink-200);
}
.cat-card:hover::after{opacity:1;}
.cat-card .cat-icon{
  width:42px;height:42px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;flex-shrink:0;
}
.cat-card .cat-name{font-size:.95rem;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.cat-card .cat-count{font-size:.78rem;color:var(--ink-400);margin-top:2px;}
.cat-card .cat-arrow{
  margin-top:auto;font-size:.8rem;color:var(--ink-300);
  display:flex;align-items:center;gap:4px;
  transition:color var(--dur),gap var(--dur);
}
.cat-card:hover .cat-arrow{color:var(--primary);gap:8px;}

/* ====================================================
   热门文章区块
==================================================== */
.hot-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:20px;
}
/* 特色文章大卡 */
.hot-feature{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-xl);overflow:hidden;
  transition:box-shadow var(--dur),transform var(--dur);
  display:flex;flex-direction:column;
}
.hot-feature:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);}
.hot-feature .feature-img-wrap{overflow:hidden;aspect-ratio:16/9;background:var(--ink-100);}
.hot-feature .feature-img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.hot-feature:hover .feature-img{transform:scale(1.05);}
.hot-feature .feature-body{padding:22px 24px;flex:1;display:flex;flex-direction:column;gap:10px;}
.hot-feature .feature-cat{
  font-size:.73rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--primary);
}
.hot-feature .feature-title{
  font-size:1.15rem;font-weight:700;line-height:1.4;
  color:var(--ink-900);letter-spacing:-.015em;
  transition:color var(--dur);
}
.hot-feature:hover .feature-title{color:var(--primary);}
.hot-feature .feature-meta{
  margin-top:auto;display:flex;align-items:center;gap:14px;
  font-size:.78rem;color:var(--ink-400);
}

/* 热门排行列表 */
.hot-list-wrap{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-xl);overflow:hidden;
}
.hot-list-head{
  padding:18px 22px 14px;
  font-size:.75rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-400);
  border-bottom:1px solid var(--border);
}
.hot-list-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 22px;border-bottom:1px solid var(--border);
  transition:background var(--dur);
}
.hot-list-item:last-child{border-bottom:none;}
.hot-list-item:hover{background:var(--ink-50);}
.rank{
  width:24px;height:24px;border-radius:6px;
  background:var(--ink-100);color:var(--ink-400);
  font-size:.73rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;margin-top:2px;
}
.rank.r1{background:#fef9c3;color:#a16207;}
.rank.r2{background:#f1f5f9;color:#475569;}
.rank.r3{background:#fef2f2;color:#b91c1c;}
.hot-list-item .h-title{
  font-size:.875rem;font-weight:600;color:var(--ink-800);
  line-height:1.5;transition:color var(--dur);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-list-item:hover .h-title{color:var(--primary);}
.hot-list-item .h-meta{font-size:.73rem;color:var(--ink-400);margin-top:4px;display:flex;gap:10px;}

/* ====================================================
   推荐图文网格
==================================================== */
.rec-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.rec-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:box-shadow var(--dur),transform var(--dur);
  display:flex;flex-direction:column;
}
.rec-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.rc-overflow{overflow:hidden;aspect-ratio:16/9;background:var(--ink-100);}
.rc-img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rec-card:hover .rc-img{transform:scale(1.05);}
.rc-body{padding:16px;flex:1;display:flex;flex-direction:column;gap:7px;}
.rc-cat{font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--primary);}
.rc-title{
  font-size:.9rem;font-weight:600;line-height:1.5;
  color:var(--ink-900);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--dur);
}
.rec-card:hover .rc-title{color:var(--primary);}
.rc-meta{font-size:.73rem;color:var(--ink-400);display:flex;gap:10px;align-items:center;}

/* ====================================================
   栏目 Banner（栏目页用）
==================================================== */
.cat-banner{
  background:#fff;
  padding:48px 0;position:relative;overflow:hidden;
}
.cat-banner::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(99,102,241,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(99,102,241,.04) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
.cat-banner::after{
  content:'';position:absolute;right:-100px;top:50%;transform:translateY(-50%);
  width:400px;height:400px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(99,102,241,.08),transparent 70%);
  pointer-events:none;
}
.cat-banner-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cat-banner-text{color:var(--ink-900);}
.cat-en{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);opacity:.8;margin-bottom:10px;font-weight:700;}
.cat-banner-text h1{font-size:2.2rem;font-weight:800;letter-spacing:-.03em;margin-bottom:10px;color:var(--ink-900);}
.cat-banner-text p{font-size:.9rem;color:var(--ink-500);max-width:480px;line-height:1.65;}
.cat-banner-count{flex-shrink:0;text-align:center;color:var(--ink-400);}
.cat-banner-count .num{display:block;font-size:2.8rem;font-weight:800;color:var(--ink-900);line-height:1;}
.cat-banner-count .label{font-size:.78rem;margin-top:4px;}

/* 子分类 tabs */
.sub-cat-tabs{display:flex;gap:8px;flex-wrap:wrap;padding:18px 0;}
.sub-cat-tab{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 16px;border-radius:8px;font-size:.84rem;font-weight:500;
  background:var(--surface);border:1px solid var(--border);
  color:var(--ink-600);
  transition:background var(--dur),color var(--dur),border-color var(--dur),box-shadow var(--dur);
}
.sub-cat-tab:hover{background:var(--ink-100);border-color:var(--ink-300);color:var(--ink-900);}
.sub-cat-tab.active{
  background:var(--ink-900);border-color:var(--ink-900);color:#fff;
  box-shadow:0 4px 12px rgba(0,0,0,.2);
}

/* ====================================================
   文章详情页
==================================================== */
.article-header{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:36px 40px 28px;
  margin-bottom:20px;
}
.article-cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.article-title{
  font-size:2rem;font-weight:800;line-height:1.3;
  color:var(--ink-900);margin-bottom:20px;
  letter-spacing:-.03em;
}
.article-meta-bar{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  font-size:.8rem;color:var(--ink-500);
  border-top:1px solid var(--border);padding-top:16px;
}
.article-meta-bar .meta-item{display:flex;align-items:center;gap:5px;}
.article-meta-bar svg{width:14px;height:14px;}

.article-body{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-xl);padding:36px 40px;
  margin-bottom:20px;
}
.article-content{font-size:.97rem;line-height:1.85;color:var(--ink-700);}
.article-content h2{
  font-size:1.4rem;font-weight:700;margin:36px 0 16px;
  color:var(--ink-900);letter-spacing:-.02em;
  padding-bottom:10px;border-bottom:1px solid var(--border);
}
.article-content h3{font-size:1.1rem;font-weight:600;margin:26px 0 12px;color:var(--ink-900);}
.article-content p{margin-bottom:18px;}
.article-content ul,.article-content ol{margin:14px 0 14px 20px;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:7px;}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--primary-dark);}
.article-content strong{font-weight:700;color:var(--ink-900);}
.article-content blockquote{
  border-left:3px solid var(--primary);background:var(--ink-50);
  padding:16px 20px;margin:22px 0;border-radius:0 8px 8px 0;
  color:var(--ink-600);font-style:italic;
}
.article-content pre{
  background:var(--ink-900);color:#e2e8f0;
  padding:20px 24px;border-radius:12px;overflow-x:auto;
  font-size:.875rem;line-height:1.65;margin:22px 0;
  font-family:'Fira Code','JetBrains Mono',Consolas,monospace;
}
.article-content code{
  font-family:'Fira Code','JetBrains Mono',Consolas,monospace;
  font-size:.86em;background:var(--ink-100);
  padding:2px 7px;border-radius:5px;color:#be185d;
}
.article-content pre code{background:none;padding:0;color:inherit;}
.article-content img{border-radius:10px;box-shadow:var(--shadow);margin:22px 0;max-width:100%;}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.9rem;}
.article-content th,.article-content td{border:1px solid var(--border);padding:11px 16px;text-align:left;}
.article-content th{background:var(--ink-50);font-weight:600;color:var(--ink-700);}
.article-content tr:nth-child(even) td{background:#fafafa;}

/* 文章标签/分享栏 */
.article-tags-bar{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:16px 22px;
  margin-bottom:20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.article-tags-bar .tags-label{font-size:.82rem;font-weight:600;color:var(--ink-500);flex-shrink:0;}
.article-tags-bar .tag_link{ display:inline-flex;align-items:center;  padding:3px 11px;border-radius:20px;  font-size:.75rem;font-weight:500;letter-spacing:.01em;  background:var(--ink-100);color:var(--ink-600);  border:1px solid var(--border);  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.article-tags-bar .tag_link:hover{background:var(--primary);color:#fff;border-color:var(--primary);}

/* 上下篇 */
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:20px;}
.article-nav-link{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:16px 20px;
  display:flex;flex-direction:column;gap:5px;
  transition:border-color var(--dur),box-shadow var(--dur),background var(--dur);
}
.article-nav-link:hover{border-color:var(--ink-300);box-shadow:var(--shadow);background:var(--ink-50);}
.article-nav-link .nav-dir{font-size:.73rem;color:var(--ink-400);text-transform:uppercase;letter-spacing:.07em;display:flex;align-items:center;gap:4px;}
.article-nav-link.next .nav-dir{justify-content:flex-end;}
.article-nav-link .nav-title{font-size:.875rem;font-weight:600;color:var(--ink-800);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.article-nav-link.next{text-align:right;}

/* 猜你喜欢 */
.related-block{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-xl);padding:24px 28px;margin-bottom:20px;
}
.related-block .block-title{
  font-size:.85rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-500);margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
}
.related-item{
  display:grid;grid-template-columns:76px 1fr;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--border);align-items:center;
}
.related-item:last-child{border-bottom:none;}
.related-item .r-thumb{width:76px;height:54px;border-radius:6px;overflow:hidden;background:var(--ink-100);}
.related-item .r-thumb img{width:100%;height:100%;object-fit:cover;}
.related-item .r-title{font-size:.84rem;font-weight:600;color:var(--ink-800);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--dur);}
.related-item:hover .r-title{color:var(--primary);}
.related-item .r-date{font-size:.73rem;color:var(--ink-400);margin-top:4px;}

/* ====================================================
   标签页 Hero
==================================================== */
.tag-hero{
  background:#fff;
  padding:44px 0;position:relative;overflow:hidden;
}
.tag-hero::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(99,102,241,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(99,102,241,.04) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
/* 右侧光晕 */
.tag-hero::after{
  content:'';position:absolute;
  right:-80px;top:50%;transform:translateY(-50%);
  width:360px;height:360px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(16,185,129,.09),transparent 70%);
  pointer-events:none;
}
.tag-hero-inner{position:relative;z-index:1;display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.tag-icon-big{
  width:56px;height:56px;
  background:rgba(99,102,241,.08);
  border:1px solid rgba(99,102,241,.15);
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;flex-shrink:0;
}
.tag-hero-text{color:var(--ink-900);}
.tag-hero-text .tag-parent{font-size:.72rem;color:var(--primary);opacity:.8;margin-bottom:6px;text-transform:uppercase;letter-spacing:.1em;font-weight:700;}
.tag-hero-text h1{font-size:1.9rem;font-weight:800;letter-spacing:-.03em;margin-bottom:4px;color:var(--ink-900);}
.tag-hero-text .tag-desc{font-size:.875rem;color:var(--ink-500);}
.tag-hero-stats{margin-left:auto;text-align:right;color:var(--ink-400);}
.tag-hero-stats .t-num{font-size:2rem;font-weight:800;color:var(--ink-900);display:block;}
.tag-hero-stats .t-label{font-size:.77rem;margin-top:3px;}

/* ====================================================
   页脚
==================================================== */
.site-footer{background:var(--ink-900);color:var(--ink-500);padding:52px 0 24px;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.footer-brand .f-logo{
  font-size:1.1rem;font-weight:700;color:#fff;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.f-logo-mark{width:28px;height:28px;background:linear-gradient(135deg,#2563eb,#7c3aed);border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:800;color:#fff;}
.footer-brand p{font-size:.84rem;line-height:1.7;max-width:230px;color:var(--ink-600);}
.footer-col h4{font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-400);margin-bottom:14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:.84rem;color:var(--ink-600);transition:color var(--dur);}
.footer-col ul li a:hover{color:var(--ink-300);}
.footer-bottom{
  padding-top:22px;display:flex;align-items:center;
  justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.78rem;
}
.footer-bottom a{color:var(--ink-700);transition:color var(--dur);}
.footer-bottom a:hover{color:var(--ink-400);}

/* 友情链接 */
.friends-links{padding:16px 0;border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05);margin-bottom:32px;}
.friends-links h4{font-size:.73rem;color:#aaadb2;text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px;}
.friends-links-wrap{display:flex;flex-wrap:wrap;gap:8px;}
.friends-links-wrap a{font-size:.78rem;color:var(--ink-700);border:1px solid rgba(255,255,255,.07);padding:3px 10px;border-radius:5px;transition:color var(--dur),border-color var(--dur);}
.friends-links-wrap a:hover{color:var(--ink-400);border-color:rgba(255,255,255,.15);}

/* ====================================================
   回到顶部
==================================================== */
.back-top{
  position:fixed;right:22px;bottom:26px;
  width:40px;height:40px;
  background:var(--ink-800);color:#fff;
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;
  transition:opacity var(--dur),transform var(--dur),background var(--dur);z-index:500;
}
.back-top.show{opacity:1;pointer-events:auto;}
.back-top:hover{background:var(--ink-900);transform:translateY(-3px);}

/* ====================================================
   目录
==================================================== */
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:block;font-size:.8rem;color:var(--ink-500);
  padding:5px 10px;border-radius:6px;
  border-left:2px solid transparent;transition:all var(--dur);line-height:1.4;
}
.toc-link:hover,.toc-link.active{background:var(--ink-100);color:var(--primary);border-left-color:var(--primary);}
.toc-link.h3{padding-left:22px;font-size:.77rem;}

/* ====================================================
   分享按钮
==================================================== */
.share-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:7px;font-size:.8rem;font-weight:500;
  transition:opacity var(--dur),transform var(--dur);border:none;
}
.share-btn:hover{opacity:.85;transform:translateY(-1px);}
.share-btn.wechat{background:#07c160;color:#fff;}
.share-btn.weibo{background:#e6162d;color:#fff;}
.share-btn.copy{background:var(--ink-100);border:1px solid var(--border);color:var(--ink-600);}

/* ====================================================
   阅读进度条
==================================================== */
.read-progress{
  position:fixed;top:0;left:0;height:2px;
  background:linear-gradient(90deg,var(--primary),#7c3aed);
  z-index:9999;width:0%;transition:width .1s linear;
}

/* ====================================================
   响应式
==================================================== */
@media(max-width:1100px){
  :root{--sidebar-w:268px;}
  .cat-grid{grid-template-columns:repeat(3,1fr);}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-h1{font-size:2.6rem;}
}
@media(max-width:900px){
  .layout-main{grid-template-columns:1fr;}
  .sidebar{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .hero-inner{grid-template-columns:1fr;}
  .hot-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .article-nav{grid-template-columns:1fr;}
  .hero-h1{font-size:2.2rem;}
}
@media(max-width:700px){
  .main-nav,.header-search{display:none;}
  .menu-toggle{display:flex;margin-left:auto;}
  .main-nav.open{
    display:block;position:fixed;
    top:var(--nav-h);left:0;right:0;
    background:var(--surface);border-top:1px solid var(--border);
    padding:12px 16px;z-index:99;
    max-height:calc(100vh - var(--nav-h));overflow-y:auto;
    box-shadow:var(--shadow-xl);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .dropdown{position:static;opacity:1;pointer-events:auto;transform:none;box-shadow:none;border:none;background:var(--ink-50);margin:4px 0;}
  .hero{padding:40px 0 48px;}
  .hero-h1{font-size:1.9rem;}
  .hero-cards{grid-template-columns:1fr 1fr;display:grid;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .rec-grid{grid-template-columns:1fr;}
  .sidebar{grid-template-columns:1fr;}
  .article-card{grid-template-columns:1fr;}
  .article-card .thumb{width:100%;height:auto;aspect-ratio:16/9;margin-right:0;margin-bottom:16px;}
  .article-card .card-body{padding-left:0;}
  .article-header{padding:22px 22px 18px;}
  .article-body{padding:22px;}
  .article-title{font-size:1.5rem;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .cat-banner-inner{flex-direction:column;align-items:flex-start;}
  .hot-grid{grid-template-columns:1fr;}
}
@media(max-width:480px){
  .hero-h1{font-size:1.65rem;}
  .hero-cards{grid-template-columns:1fr;}
  .section-title{font-size:1.4rem;}
  .cat-grid{grid-template-columns:1fr 1fr;}
  .article-nav{grid-template-columns:1fr;}
}

/* ====================================================
   侧边栏分类列表
==================================================== */
.cat-nav-list{display:flex;flex-direction:column;gap:1px;}
.cat-nav-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;border-radius:7px;font-size:.84rem;
  color:var(--ink-600);transition:background var(--dur),color var(--dur);
}
.cat-nav-item:hover{background:var(--ink-100);color:var(--ink-900);}
.cat-nav-item.active{background:var(--ink-900);color:#fff;font-weight:600;}
.cat-nav-item.active:hover{background:var(--ink-800);}
.cat-nav-count{font-size:.73rem;opacity:.6;}

/* ====================================================
   相关标签条（标签页用）
==================================================== */
.related-tags-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:12px 0;}
.related-tags-bar-inner{display:flex;align-items:center;gap:9px;flex-wrap:wrap;}
.related-tags-bar-inner .rtb-label{font-size:.78rem;color:var(--ink-400);font-weight:500;flex-shrink:0;}

/* ====================================================
   打印
==================================================== */
@media print{
  .site-header,.sidebar,.site-footer,.back-top,.article-nav,.read-progress{display:none!important;}
  .layout-main{grid-template-columns:1fr;}
  .article-body,.article-header{border:none;box-shadow:none;padding:0;}
}