/* ===== 工具箱 · 杂志手编风 ===== */
:root{
  --ink:#1c1b19;
  --ink-soft:#3d3b36;
  --paper:#f4efe6;
  --paper-2:#ece5d6;
  --card:#fbf8f1;
  --rule:#1c1b19;
  --rule-soft:#d8d0bf;
  --accent:#b8410f;
  --accent-soft:#e8a087;
  --muted:#8a8478;
  --highlight:#f3e9b0;
  --max:1180px;
}
[data-theme="dark"]{
  --ink:#e8e3d8;
  --ink-soft:#b8b1a0;
  --paper:#16140f;
  --paper-2:#1d1a13;
  --card:#211d16;
  --rule:#d8d0bf;
  --rule-soft:#3a352b;
  --accent:#e8763d;
  --accent-soft:#b8410f;
  --muted:#7a7568;
  --highlight:#3d3418;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Iowan Old Style","Apple Garamond","Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--max);margin:0 auto;padding:0 28px}

/* 纸张纹理 */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:radial-gradient(circle at 1px 1px,rgba(28,27,25,.04) 1px,transparent 0);
  background-size:18px 18px;
}

/* ===== 顶栏 ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--rule);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo-emoji{font-size:24px;font-family:"Apple Color Emoji","Segoe UI Emoji",sans-serif}
.logo-text{
  font-family:"Iowan Old Style",Georgia,"Songti SC",serif;
  font-size:21px;font-weight:700;letter-spacing:.5px;
}
.logo-text::after{content:'';display:block;height:2px;background:var(--accent);margin-top:-4px}

.header-right{display:flex;align-items:center;gap:14px;flex:1;justify-content:flex-end}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:transparent;border:none;border-bottom:1px solid var(--ink);
  padding:4px 0;width:100%;max-width:320px;
  transition:border-color .2s;
}
.search-box:focus-within{border-color:var(--accent)}
.search-icon{font-size:15px;opacity:.7}
.search-box input{
  flex:1;border:none;background:none;outline:none;
  padding:6px 0;font-size:15px;color:var(--ink);
  font-family:"Iowan Old Style",Georgia,serif;
}
.search-box input::placeholder{color:var(--muted);font-style:italic}
.search-clear{background:none;border:none;cursor:pointer;font-size:14px;color:var(--muted)}
.theme-toggle{
  background:none;border:1px solid var(--ink);width:38px;height:38px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:17px;flex-shrink:0;color:var(--ink);
}
.theme-toggle:hover{background:var(--ink);color:var(--paper)}
.theme-icon-dark{display:none}
[data-theme="dark"] .theme-icon-light{display:none}
[data-theme="dark"] .theme-icon-dark{display:inline}

.main-content{padding:36px 28px 80px;position:relative;z-index:1}

/* ===== Hero 大标题 ===== */
.hero-section{text-align:left;padding:28px 0 32px;border-bottom:2px solid var(--rule);margin-bottom:28px;position:relative}
.hero-section::after{content:'';position:absolute;bottom:-5px;left:0;width:80px;height:2px;background:var(--accent)}
.hero-title{
  font-family:"Iowan Old Style","Apple Garamond","Songti SC",Georgia,serif;
  font-size:48px;font-weight:700;line-height:1.15;letter-spacing:-.5px;
  color:var(--ink);margin-bottom:14px;
}
.hero-subtitle{
  font-size:17px;color:var(--ink-soft);max-width:580px;
  font-style:italic;letter-spacing:.2px;
}

/* ===== 统计 ===== */
.stats-bar{display:flex;gap:0;margin-bottom:36px;border-top:1px solid var(--rule-soft);border-bottom:1px solid var(--rule-soft)}
.stat-item{
  flex:1;padding:14px 0;display:flex;align-items:baseline;gap:8px;
  border-right:1px solid var(--rule-soft);
}
.stat-item:last-child{border-right:none}
.stat-num{font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.stat-label{font-size:13px;color:var(--muted);text-transform:lowercase;letter-spacing:.5px}

/* ===== 分类标签 ===== */
.category-tabs{display:flex;gap:0;margin-bottom:40px;flex-wrap:wrap;border-bottom:1px solid var(--rule-soft)}
.cat-tab{
  padding:10px 18px;border:none;background:none;cursor:pointer;
  font-size:14px;color:var(--ink);white-space:nowrap;
  font-family:inherit;border-bottom:2px solid transparent;margin-bottom:-1px;
  transition:all .15s;
}
.cat-tab:hover{color:var(--accent)}
.cat-tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}

/* ===== 分类区 ===== */
.category-section{margin-bottom:48px}
.section-title{
  display:flex;align-items:baseline;gap:14px;
  font-size:14px;font-weight:700;margin-bottom:22px;
  padding-bottom:0;border-bottom:none;
  text-transform:uppercase;letter-spacing:1.5px;
}
.section-title .section-num{
  font-family:"Iowan Old Style",Georgia,serif;font-size:22px;font-weight:700;
  color:var(--accent);font-style:italic;letter-spacing:0;
}
.section-icon{font-size:16px}
.section-title-text{flex:1}
.section-title-text::after{content:'';display:inline-block;width:100%;border-bottom:1px solid var(--rule-soft);margin-left:12px;vertical-align:middle}

/* ===== 工具网格 ===== */
.tools-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1px;
  background:var(--rule-soft);border:1px solid var(--rule-soft);
}
.tool-card{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--card);padding:20px;text-decoration:none;color:var(--ink);
  transition:background .2s;cursor:pointer;position:relative;
}
.tool-card:hover{background:var(--paper-2)}
.tool-card:hover .tool-name{color:var(--accent)}
.tool-card:hover .tool-arrow{opacity:1;transform:translateX(0)}
.tool-icon{
  width:40px;height:40px;flex-shrink:0;display:flex;
  align-items:center;justify-content:center;font-size:22px;
  background:var(--paper-2);border:1px solid var(--rule-soft);
}
.tool-icon .icon-img{width:100%;height:100%;object-fit:contain;padding:4px}
.tool-info{flex:1;min-width:0}
.tool-name{
  font-size:16px;font-weight:600;margin-bottom:3px;
  transition:color .2s;
}
.tool-desc{
  font-size:13px;color:var(--muted);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font-style:italic;
}
.tool-arrow{font-size:14px;color:var(--accent);opacity:0;transform:translateX(-4px);transition:all .2s}

/* ===== 文件列表 ===== */
.files-list{display:flex;flex-direction:column;border-top:1px solid var(--rule-soft)}
.file-card{
  background:var(--card);border-bottom:1px solid var(--rule-soft);
  transition:background .2s;
}
.file-card:hover{background:var(--paper-2)}
.file-card:hover .file-name{color:var(--accent)}
.file-download-link{display:flex;align-items:center;gap:16px;padding:16px 4px;text-decoration:none;color:var(--ink)}
.file-icon{
  width:38px;height:38px;flex-shrink:0;display:flex;
  align-items:center;justify-content:center;font-size:20px;
  border:1px solid var(--rule-soft);background:var(--paper-2);
}
.file-icon .icon-img{width:100%;height:100%;object-fit:contain;padding:4px}
.file-info{flex:1;min-width:0}
.file-name{font-size:16px;font-weight:600;margin-bottom:4px;transition:color .2s}
.file-desc{font-size:13px;color:var(--muted);margin-bottom:5px;font-style:italic}
.file-meta{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-variant-numeric:tabular-nums}
.file-dot{opacity:.5}
.file-netdisk{color:var(--accent);font-weight:600;letter-spacing:.3px}
.file-code{
  color:var(--ink);font-weight:600;background:var(--highlight);
  padding:1px 8px;border-radius:0;letter-spacing:1px;
}
.file-action{flex-shrink:0}
.dl-btn{
  display:inline-block;padding:8px 22px;
  background:var(--ink);color:var(--paper);font-size:13px;font-weight:600;
  letter-spacing:.5px;transition:all .2s;border:1px solid var(--ink);
}
.file-card:hover .dl-btn{background:var(--accent);border-color:var(--accent);color:#fff}

/* ===== 空状态 ===== */
.empty-state,.no-result{text-align:center;padding:80px 20px;color:var(--muted)}
.empty-icon{font-size:56px;margin-bottom:18px}
.empty-state h2,.no-result h2{font-size:20px;margin-bottom:8px;color:var(--ink);font-weight:700}
.empty-state a,.no-result a{color:var(--accent);border-bottom:1px solid var(--accent)}
.is-hidden{display:none!important}

/* ===== 页脚 ===== */
.site-footer{
  border-top:2px solid var(--rule);background:var(--paper);
  padding:28px 0;text-align:center;color:var(--muted);font-size:13px;
}
.site-footer a{color:var(--ink);border-bottom:1px solid var(--ink-soft)}

/* ===== 响应式 ===== */
@media(max-width:640px){
  .container{padding:0 18px}
  .header-inner{height:56px}
  .logo-text{font-size:18px}
  .search-box{max-width:none}
  .hero-title{font-size:34px}
  .hero-subtitle{font-size:15px}
  .hero-section{padding:20px 0 24px}
  .tools-grid{grid-template-columns:1fr}
  .tool-card{padding:16px}
  .tool-icon{width:36px;height:36px;font-size:20px}
  .stat-item{padding:12px 0;min-width:0}
  .stat-num{font-size:22px}
  .file-download-link{padding:14px 4px;gap:12px}
  .dl-btn{padding:7px 16px}
  .cat-tab{padding:8px 14px;font-size:13px}
  .section-title{font-size:13px}
  .section-title .section-num{font-size:18px}
}