/* ===== 热量管理助手 · 博客系统样式 ===== */
/* 青绿色毛玻璃风格，与主站一致 */

/* #region ===== 主题变量 ===== */
:root {
  --bg-body: linear-gradient(135deg, #e0f5f0, #c8ece3, #b0e3d8);
  --bg-orb1: rgba(38,166,154,0.1);
  --bg-orb2: rgba(0,150,136,0.07);
  --bg-orb3: rgba(128,203,196,0.06);
  --bg-card: rgba(255,255,255,0.55);
  --bg-section: rgba(255,255,255,0.65);
  --bg-input: rgba(255,255,255,0.7);
  --text: #1a3a36;
  --text-secondary: #2d5a54;
  --text-hint: #5a8a82;
  --text-light: #7aada4;
  --border: rgba(38,166,154,0.15);
  --border-light: rgba(38,166,154,0.08);
  --accent: #00897b;
  --accent2: #26a69a;
  --accent3: #4db6ac;
  --accent-light: rgba(0,137,123,0.1);
  --accent-text: #00695c;
  --bg-hover: rgba(0,137,123,0.04);
  --bg-result: rgba(38,166,154,0.06);
  --tag-bg: rgba(38,166,154,0.08);
  --shadow: 0 2px 12px rgba(0,137,123,0.08);
  --card-shadow: 0 20px 60px rgba(0,100,90,0.12);
  --nav-bg: rgba(255,255,255,0.5);
}
.dark {
  --bg-body: linear-gradient(135deg, #051010, #0a1f1c);
  --bg-orb1: rgba(38,166,154,0.06);
  --bg-orb2: rgba(0,150,136,0.04);
  --bg-orb3: rgba(128,203,196,0.03);
  --bg-card: rgba(10,30,28,0.6);
  --bg-section: rgba(10,35,32,0.55);
  --bg-input: rgba(20,45,42,0.5);
  --text: #c8e8e0;
  --text-secondary: #8ab8b0;
  --text-hint: #5a8a82;
  --text-light: #4a7a72;
  --border: rgba(77,182,172,0.12);
  --border-light: rgba(77,182,172,0.06);
  --accent: #4db6ac;
  --accent2: #26a69a;
  --accent3: #80cbc4;
  --accent-light: rgba(77,182,172,0.08);
  --accent-text: #80cbc4;
  --bg-hover: rgba(77,182,172,0.06);
  --bg-result: rgba(77,182,172,0.05);
  --tag-bg: rgba(77,182,172,0.06);
  --shadow: 0 2px 12px rgba(0,0,0,0.3);
  --card-shadow: 0 20px 60px rgba(0,0,0,0.5);
  --nav-bg: rgba(10,30,28,0.6);
}
/* #endregion */

/* #region ===== 基础样式 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-body);min-height:100vh;font-family:'Inter','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,sans-serif;color:var(--text);line-height:1.7;transition:background .3s,color .3s;padding:0 16px}
a{color:var(--accent);text-decoration:none;transition:color .25s}
a:hover{color:var(--accent-text)}
img{max-width:100%;height:auto}
code{background:var(--bg-result);padding:2px 8px;border-radius:6px;font-size:.9em;color:var(--accent-text);font-family:'Fira Code','Consolas',monospace}
pre code{display:block;padding:16px 20px;overflow-x:auto;line-height:1.6;font-size:14px}
table{width:100%;border-collapse:separate;border-spacing:0;margin:16px 0;border-radius:12px;overflow:hidden}
th{background:var(--accent);color:#fff;padding:10px 14px;font-size:14px;font-weight:600;text-align:left}
td{padding:9px 14px;border-bottom:1px solid var(--border-light);font-size:14px;color:var(--text-secondary)}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--bg-hover)}
/* #endregion */

/* #region ===== 导航栏 ===== */
.blog-nav{position:sticky;top:12px;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;height:48px;padding:0 18px;margin:12px auto;max-width:960px;background:var(--nav-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-light);border-radius:24px;transition:background .3s}
.blog-nav .logo{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--text);white-space:nowrap}
.blog-nav .logo:hover{color:var(--accent)}
.blog-nav .nav-links{display:flex;align-items:center;gap:8px}
.blog-nav .nav-links a{font-size:13px;padding:5px 12px;border-radius:16px;color:var(--text-secondary);transition:all .25s;white-space:nowrap}
.blog-nav .nav-links a:hover{color:var(--accent);background:var(--accent-light)}
.theme-toggle{background:none;border:1px solid var(--border);border-radius:16px;padding:5px 10px;cursor:pointer;font-size:16px;transition:all .25s;line-height:1}
.theme-toggle:hover{background:var(--accent-light);border-color:var(--accent)}
.lang-btn{display:inline-flex;align-items:center;gap:2px;padding:5px 12px;border:1px solid var(--border);border-radius:16px;background:var(--tag-bg);color:var(--accent);cursor:pointer;font-size:13px;font-weight:500;transition:all .25s;font-family:inherit;user-select:none}
.lang-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
@media(max-width:640px){.blog-nav{padding:0 12px;gap:6px}.blog-nav .logo{font-size:13px;gap:4px}.blog-nav .logo svg{width:22px;height:22px}.blog-nav .nav-links{gap:4px}.blog-nav .nav-links a{font-size:11px;padding:4px 8px}.lang-btn{font-size:11px;padding:4px 8px}}
/* #endregion */

/* #region ===== 语言切换 ===== */
.zh,.en{transition:opacity .15s}
html[lang="zh"] .en{display:none!important}
html[lang="en"] .zh{display:none!important}
html[lang="zh"] .lang-btn .en-txt{display:none}
html[lang="en"] .lang-btn .zh-txt{display:none}
/* #endregion */

/* #region ===== 容器与卡片 ===== */
.container{max-width:800px;margin:28px auto 40px;background:var(--bg-card);border-radius:20px;padding:32px 36px;box-shadow:var(--card-shadow);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-light);transition:background .3s,box-shadow .3s}
.blog-index{max-width:960px;margin:28px auto 40px}
.card{background:var(--bg-section);border-radius:16px;padding:28px 26px;margin-bottom:16px;box-shadow:var(--shadow);border:1px solid var(--border-light);transition:all .35s cubic-bezier(.25,.8,.25,1);position:relative;overflow:hidden;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:block;color:var(--text)}
.card:hover{transform:translateY(-6px);border-color:transparent;box-shadow:0 12px 40px rgba(0,137,123,0.12),0 4px 12px rgba(0,137,123,0.08)}
.card::before{content:'';position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,var(--accent),var(--accent2),var(--accent3),var(--accent));background-size:300% 300%;-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s;pointer-events:none}
.card:hover::before{opacity:1;animation:shimmer 2.5s ease-in-out infinite}
@keyframes shimmer{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}
.card .icon{font-size:32px;margin-bottom:8px;display:block}
.card h2{font-size:20px;font-weight:600;color:var(--text);margin:0 0 6px}
.card .meta{font-size:12px;color:var(--text-hint);margin-bottom:10px;display:flex;gap:12px;flex-wrap:wrap}
.card .desc{font-size:14px;color:var(--text-secondary);line-height:1.7;margin:0;flex:1}
.card .tags{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}
.card .tag{font-size:11px;padding:3px 10px;border-radius:10px;background:var(--tag-bg);border:1px solid var(--border);color:var(--accent-text)}
.card .read-more{display:inline-block;margin-top:12px;font-size:13px;font-weight:500;color:var(--accent)}
.card .read-more:hover{text-decoration:underline}
@media(max-width:600px){.container{padding:20px 16px}.card{padding:20px 16px}}
/* #endregion */

/* #region ===== 文章头部 ===== */
.article-header{margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border-light)}
.breadcrumb{font-size:13px;color:var(--text-hint);margin-bottom:12px}
.breadcrumb a{color:var(--text-hint)}
.breadcrumb a:hover{color:var(--accent)}
.article-header h1{font-size:clamp(24px,5vw,32px);font-weight:700;color:var(--text);margin:0 0 8px;line-height:1.25;letter-spacing:-.3px}
.article-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-hint);margin-bottom:8px}
.article-tags{display:flex;gap:6px;flex-wrap:wrap}
.article-tags .tag{font-size:11px;padding:3px 10px;border-radius:10px;background:var(--tag-bg);border:1px solid var(--border);color:var(--accent-text)}
/* #endregion */

/* #region ===== 文章目录 ===== */
.toc{background:var(--bg-result);border:1px solid var(--border-light);border-radius:12px;padding:16px 20px;margin:0 0 24px}
.toc-title{font-size:14px;font-weight:600;color:var(--accent);margin-bottom:8px}
.toc ol{margin:0;padding-left:20px}
.toc li{margin:4px 0;font-size:14px}
.toc a{color:var(--text-secondary);transition:color .2s}
.toc a:hover{color:var(--accent)}
/* #endregion */

/* #region ===== 文章内容 ===== */
.article-content{font-size:15px;line-height:1.9;color:var(--text-secondary)}
.article-content h2{font-size:22px;font-weight:600;color:var(--text);margin:32px 0 12px;padding-bottom:8px;border-bottom:1px solid var(--border-light)}
.article-content h3{font-size:18px;font-weight:600;color:var(--text);margin:24px 0 10px}
.article-content h4{font-size:16px;font-weight:600;color:var(--text-secondary);margin:20px 0 8px}
.article-content p{margin:0 0 14px}
.article-content ul,.article-content ol{margin:0 0 14px;padding-left:22px}
.article-content li{margin:4px 0}
.article-content strong{color:var(--text);font-weight:600}
.article-content blockquote{border-left:3px solid var(--accent);background:var(--bg-result);padding:12px 18px;margin:16px 0;border-radius:0 10px 10px 0;color:var(--text-secondary);font-size:14px}
.article-content .tip-box{background:var(--bg-result);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;padding:12px 16px;margin:14px 0;font-size:14px;color:var(--text-secondary)}
.article-content .tip-box strong{color:var(--accent)}
.article-content hr{border:none;border-top:1px solid var(--border-light);margin:24px 0}
/* #endregion */

/* #region ===== 页脚 ===== */
.blog-footer{text-align:center;padding:20px 0 30px;font-size:13px;color:var(--text-hint)}
.blog-footer a{color:var(--text-hint);margin:0 10px;transition:color .2s}
.blog-footer a:hover{color:var(--accent)}
.blog-footer .footer-links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}
/* #endregion */

/* #region ===== 语言切换按钮组 ===== */
.lang-group{display:flex;gap:0}
.lang-group .lang-btn{border-radius:0}
.lang-group .lang-btn:first-child{border-radius:16px 0 0 16px}
.lang-group .lang-btn:last-child{border-radius:0 16px 16px 0}
.lang-group .lang-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
/* #endregion */

/* #region ===== 响应式 ===== */
@media(max-width:768px){
  .container{padding:24px 20px}
  .blog-index .card{padding:20px 16px}
  .article-content h2{font-size:20px}
  .article-content h3{font-size:17px}
}
@media(max-width:480px){
  body{padding:0 10px}
  .container{padding:18px 14px;border-radius:14px}
  .blog-nav{height:44px;padding:0 10px;gap:4px}
  .article-content{font-size:14px}
  .article-content table{font-size:12px}
  .article-content th,.article-content td{padding:6px 8px}
}
/* #endregion */

/* ===== 语言切换 ===== */
.lang-btn{display:inline-flex;align-items:center;gap:2px;padding:5px 12px;border:1px solid var(--border,rgba(38,166,154,0.15));border-radius:16px;background:var(--tag-bg,rgba(38,166,154,0.08));color:var(--accent,#00897b);cursor:pointer;font-size:13px;font-weight:500;transition:all .25s;font-family:inherit;user-select:none;}
.lang-btn:hover{background:var(--accent,#00897b);color:#fff;border-color:var(--accent,#00897b);}
.zh,.en{transition:opacity .2s;}
html[lang="zh"] .en{display:none!important;}
html[lang="en"] .zh{display:none!important;}
html[lang="zh"] .lang-btn .en-txt{display:none;}
html[lang="en"] .lang-btn .zh-txt{display:none;}