/* 吃瓜网 - 匿名树洞与情感倾诉社区 - 主样式表 */
:root{
  --primary:#1A237E;
  --secondary:#FFE082;
  --bg:#0D1B2A;
  --card-bg:#1A2744;
  --accent:#FFC107;
  --text:#F5F5F5;
  --text-muted:#9E9E9E;
  --border:#2C3E50;
  --radius:16px;
  --shadow-warm:0 8px 24px rgba(255,193,7,.15);
  --transition:all .3s ease;
}
[data-theme="light"]{
  --primary:#3F51B5;
  --secondary:#FFB300;
  --bg:#FAF9F6;
  --card-bg:#FFFFFF;
  --accent:#FF8F00;
  --text:#1A237E;
  --text-muted:#5C6BC0;
  --border:#E0E0E0;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.8;letter-spacing:.02em;font-size:16px;
  transition:var(--transition);min-height:100vh;
}
a{color:var(--secondary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,27,42,.85);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
[data-theme="light"] .site-header{background:rgba(250,249,246,.9)}
.nav-wrap{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.logo{font-size:22px;font-weight:700;color:var(--secondary);display:flex;align-items:center;gap:8px}
.logo .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:.6}50%{opacity:1}}
.main-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.main-nav a{padding:8px 14px;border-radius:10px;color:var(--text);font-size:15px}
.main-nav a:hover,.main-nav a.active{background:var(--card-bg);color:var(--secondary)}
.nav-actions{display:flex;gap:10px;align-items:center}
.theme-toggle,.btn-search{
  background:var(--card-bg);border:1px solid var(--border);color:var(--text);
  width:44px;height:44px;border-radius:50%;cursor:pointer;font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;transition:var(--transition);
}
.theme-toggle:hover,.btn-search:hover{border-color:var(--accent);color:var(--accent)}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--secondary));
  color:#1A237E;font-weight:600;padding:12px 22px;border-radius:24px;
  border:0;cursor:pointer;font-size:15px;min-height:44px;
  box-shadow:var(--shadow-warm);transition:var(--transition);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,193,7,.3)}

/* 主体 */
main{max-width:1200px;margin:0 auto;padding:24px 20px 60px;animation:fadeIn .6s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* Hero */
.hero{
  position:relative;border-radius:24px;overflow:hidden;
  margin:20px 0 40px;min-height:420px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(13,27,42,.4),rgba(13,27,42,.85)),url('../images/hero-night-sky.webp') center/cover;
}
.hero-inner{text-align:center;padding:60px 20px;max-width:820px;position:relative;z-index:2}
.hero h1{font-size:clamp(28px,5vw,46px);font-weight:700;line-height:1.3;margin-bottom:18px;color:#fff}
.hero h1 .accent{color:var(--secondary);text-shadow:0 0 20px rgba(255,224,130,.5)}
.hero p{font-size:17px;color:#E8EAF6;margin-bottom:28px;max-width:640px;margin-inline:auto}
.hero .btn-primary{font-size:17px;padding:14px 32px}
.stars-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.stars-bg span{position:absolute;width:3px;height:3px;background:#fff;border-radius:50%;opacity:.6;animation:twinkle 3s infinite}
@keyframes twinkle{0%,100%{opacity:.2}50%{opacity:1}}

/* 模块标题 */
.section{margin:50px 0}
.section-title{display:flex;align-items:center;gap:12px;margin-bottom:24px;font-size:24px;font-weight:700}
.section-title::before{content:"";width:4px;height:24px;background:var(--accent);border-radius:2px}
.section-desc{color:var(--text-muted);margin-bottom:24px;max-width:780px}

/* 情绪气象站 */
.weather-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.weather-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;transition:var(--transition)}
.weather-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.weather-num{font-size:32px;font-weight:700;color:var(--accent);margin-bottom:6px}
.weather-label{color:var(--text-muted);font-size:14px}

/* 标签云 */
.tag-cloud{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:32px;text-align:center}
.tag-cloud a{display:inline-block;margin:6px;padding:8px 16px;border-radius:20px;background:rgba(255,193,7,.1);color:var(--secondary);font-size:14px;border:1px solid rgba(255,193,7,.2);transition:var(--transition)}
.tag-cloud a:hover{background:var(--accent);color:#1A237E;transform:scale(1.05)}
.tag-cloud a.size-lg{font-size:18px;font-weight:600}
.tag-cloud a.size-md{font-size:16px}

/* 瀑布流 */
.waterfall{column-count:3;column-gap:20px}
@media(max-width:900px){.waterfall{column-count:2}}
@media(max-width:600px){.waterfall{column-count:1}}
.story-card{
  break-inside:avoid;background:var(--card-bg);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;margin-bottom:20px;transition:var(--transition);
  position:relative;
}
.story-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-warm);border-color:rgba(255,193,7,.3)}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:13px;color:var(--text-muted)}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:14px}
.card-head .anon{color:var(--text);font-weight:500}
.heat{position:absolute;top:20px;right:20px;font-size:12px;color:var(--accent);background:rgba(255,193,7,.1);padding:4px 10px;border-radius:12px}
.story-card h3{font-size:17px;margin-bottom:10px;line-height:1.5;color:var(--text)}
.story-card h3 a{color:inherit}
.story-card h3 a:hover{color:var(--secondary)}
.story-card p{color:var(--text-muted);font-size:15px;margin-bottom:14px}
.tags{margin-bottom:14px}
.tags a{font-size:12px;color:var(--secondary);margin-right:8px}
.card-actions{display:flex;gap:18px;border-top:1px solid var(--border);padding-top:14px;font-size:14px}
.card-actions button{background:none;border:0;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;gap:6px;font-size:14px;padding:6px 4px;min-height:44px}
.card-actions button:hover{color:var(--accent)}
.card-actions .heart.active{color:var(--accent);animation:pop .4s}
@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.4)}100%{transform:scale(1)}}

/* 横向滚动 */
.scroll-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;scrollbar-width:thin}
.scroll-row .story-card{min-width:300px;margin-bottom:0;break-inside:auto}

/* 每日一言 */
.quote{
  background:linear-gradient(135deg,rgba(26,35,126,.6),rgba(255,193,7,.08));
  border:1px solid var(--border);border-radius:var(--radius);
  padding:40px 32px;text-align:center;position:relative;
}
.quote::before{content:"\201C";position:absolute;top:-10px;left:30px;font-size:80px;color:var(--accent);opacity:.4;font-family:Georgia,serif}
.quote p{font-size:20px;font-style:italic;line-height:1.7;color:var(--text);max-width:680px;margin:0 auto 12px;font-family:"Ma Shan Zheng","KaiTi","STKaiti",cursive}
.quote .who{color:var(--text-muted);font-size:14px}

/* 文章详情 */
.article{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:36px;margin-bottom:30px}
.article h1{font-size:30px;line-height:1.4;margin-bottom:18px}
.article .meta{color:var(--text-muted);font-size:14px;margin-bottom:24px;display:flex;gap:16px;flex-wrap:wrap}
.article-body{font-size:17px;line-height:1.9}
.article-body p{margin-bottom:1.5em}
.article-body h2{font-size:22px;margin:32px 0 16px;color:var(--secondary)}
.article-body blockquote{border-left:4px solid var(--accent);padding:8px 18px;color:var(--text-muted);margin:20px 0;background:rgba(255,193,7,.06);border-radius:0 8px 8px 0}

/* 评论气泡 */
.comments{margin-top:30px}
.bubble{max-width:80%;padding:14px 18px;border-radius:18px;margin:12px 0;position:relative;background:var(--card-bg);border:1px solid var(--border)}
.bubble.author{background:rgba(26,35,126,.5);margin-left:auto;border-color:var(--primary)}
.bubble .b-head{font-size:12px;color:var(--text-muted);margin-bottom:6px}
.bubble p{font-size:15px}
.bubble .hug{margin-top:8px;font-size:12px;color:var(--accent);cursor:pointer}

/* 面包屑 */
.crumb{font-size:13px;color:var(--text-muted);margin-bottom:18px}
.crumb a{color:var(--text-muted)}.crumb a:hover{color:var(--secondary)}
.crumb .sep{margin:0 8px}

/* 编辑器弹层 */
.editor-mask{
  position:fixed;inset:0;background:rgba(13,27,42,.7);backdrop-filter:blur(10px);
  display:none;align-items:center;justify-content:center;z-index:200;padding:20px;
}
.editor-mask.open{display:flex;animation:fadeIn .3s}
.editor{background:var(--card-bg);border:1px solid var(--border);border-radius:20px;padding:30px;max-width:640px;width:100%;max-height:90vh;overflow:auto}
.editor h2{font-size:22px;margin-bottom:8px}
.editor .sub{color:var(--text-muted);font-size:14px;margin-bottom:18px}
.anon-pick{display:flex;align-items:center;gap:12px;padding:12px;background:rgba(255,193,7,.06);border-radius:12px;margin-bottom:16px}
.anon-pick .avatar{width:42px;height:42px}
.anon-pick .roll{margin-left:auto;background:none;border:1px solid var(--border);color:var(--secondary);padding:6px 14px;border-radius:18px;cursor:pointer;min-height:44px}
.emo-row{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.emo-row button{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:8px 14px;border-radius:18px;cursor:pointer;min-height:44px;font-size:14px}
.emo-row button.on{background:var(--accent);color:#1A237E;border-color:var(--accent)}
.editor textarea{width:100%;min-height:160px;background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:14px;color:var(--text);font-size:15px;font-family:inherit;resize:vertical}
.editor textarea:focus{outline:none;border-color:var(--accent)}
.editor .options{display:flex;gap:14px;margin:14px 0;font-size:14px;color:var(--text-muted);flex-wrap:wrap}
.editor .options label{display:flex;align-items:center;gap:6px;cursor:pointer}
.editor .tip{font-size:12px;color:var(--text-muted);background:rgba(255,193,7,.06);padding:10px 14px;border-radius:8px;margin-bottom:14px;line-height:1.6}
.editor .footer{display:flex;gap:10px;justify-content:flex-end;margin-top:8px}
.editor .footer .cancel{background:none;border:1px solid var(--border);color:var(--text);padding:10px 20px;border-radius:20px;cursor:pointer;min-height:44px}

/* 搜索 */
.search-box{display:flex;gap:10px;margin-bottom:24px}
.search-box input{flex:1;background:var(--card-bg);border:1px solid var(--border);color:var(--text);padding:14px 18px;border-radius:24px;font-size:15px;min-height:44px}
.search-box input:focus{outline:none;border-color:var(--accent)}
.search-box .btn-primary{padding:0 26px}
mark{background:rgba(255,193,7,.3);color:var(--accent);padding:0 4px;border-radius:4px}

/* 页脚 */
.site-footer{
  background:#08111B;border-top:1px solid var(--border);
  padding:40px 20px 24px;margin-top:60px;color:var(--text-muted);
}
[data-theme="light"] .site-footer{background:#F0EEE8}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:30px}
.footer-grid h4{color:var(--text);font-size:15px;margin-bottom:12px}
.footer-grid a{color:var(--text-muted);display:block;padding:4px 0;font-size:14px}
.footer-grid a:hover{color:var(--secondary)}
.trust{
  max-width:1200px;margin:30px auto 0;padding:20px;border:1px dashed var(--border);
  border-radius:12px;font-size:13px;text-align:center;line-height:1.8;
}
.copyright{max-width:1200px;margin:20px auto 0;font-size:12px;text-align:center;padding-top:18px;border-top:1px solid var(--border)}

/* 404 */
.page-404{text-align:center;padding:80px 20px}
.page-404 img{max-width:380px;margin:0 auto 30px;border-radius:24px}
.page-404 h1{font-size:32px;margin-bottom:14px}
.page-404 p{color:var(--text-muted);max-width:520px;margin:0 auto 28px}

@media(max-width:720px){
  .main-nav{order:3;width:100%;justify-content:center}
  .hero{min-height:340px}
  .article{padding:24px}
}