:root{--primary:#0a4d4a;--primary-light:#156b66;--primary-deep:#073835;--primary-bg:#e6f0ee;--bg:#f8f9f7;--bg-card:#fff;--bg-warm:#f2f5f0;--bg-dark:#1a2e2c;--text:#1a2a2e;--text-secondary:#4a5a5e;--text-muted:#7a8a8e;--text-light:#fff;--border:#d0e0dd;--border-light:#e8f0ed;--shadow-sm:0 2px 8px #0a4d4a0f;--shadow-md:0 4px 20px #0a4d4a1a;--shadow-lg:0 12px 40px #0a4d4a26;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--font-sans:"Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif:"Noto Serif SC", Georgia, serif;--font-display:"Inter", sans-serif;--max-width:720px;--max-width-wide:1200px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.7}a{color:var(--primary-light);text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1)}a:hover{color:var(--primary-deep)}.container{max-width:var(--max-width-wide);margin:0 auto;padding:0 24px}.container-narrow{max-width:var(--max-width);margin:0 auto;padding:0 24px}.header{z-index:100;background:var(--bg-dark);border-bottom:1px solid #ffffff1a;position:sticky;top:0;box-shadow:0 2px 12px #00000026}.header-inner{max-width:var(--max-width-wide);margin:0 auto;padding:0 24px}.header-top{border-bottom:1px solid #ffffff0f;justify-content:space-between;align-items:center;height:56px;display:flex}.header-logo{align-items:center;gap:10px;text-decoration:none;display:flex}.header-logo-img{object-fit:contain;border-radius:4px;width:36px;height:36px}.header-logo-text{flex-direction:column;align-items:flex-start;display:flex}.header-logo-main{color:var(--text-light);letter-spacing:3px;text-transform:uppercase;font-size:20px;font-weight:700;line-height:1.2}.header-logo-en{color:#ffffff80;letter-spacing:1px;margin-top:2px;font-size:11px;font-weight:400}.header-top-right{align-items:center;gap:12px;display:flex}.header-search{color:#ffffffb3;background:#ffffff14;border:1px solid #ffffff26;border-radius:6px;outline:none;width:200px;padding:6px 14px;font-size:13px;transition:all .3s}.header-search::placeholder{color:#ffffff4d}.header-search:focus{background:#ffffff1f;border-color:#4fd1c580}.header-lang-btn{color:#fffc;cursor:pointer;letter-spacing:.5px;background:0 0;border:1px solid #fff3;border-radius:6px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .3s}.header-lang-btn:hover{color:#4fd1c5;background:#4fd1c514;border-color:#4fd1c580}.header-lang-btn.active{color:#4fd1c5;background:#4fd1c526;border-color:#4fd1c566}.header-bottom{justify-content:flex-end;align-items:center;height:44px;display:flex}.header-nav{align-items:center;gap:6px;font-size:13px;display:flex}.header-nav a{color:#fffc;letter-spacing:.5px;white-space:nowrap;background:#ffffff05;border:1px solid #ffffff1f;border-radius:5px;padding:5px 12px;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1)}.header-nav a:hover{color:#4fd1c5;background:#4fd1c50f;border-color:#4fd1c559}.hero{background:linear-gradient(135deg,#0a4d4a 0%,#156b66 50%,#2d8f88 100%);justify-content:center;align-items:center;min-height:280px;display:flex;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle at 20%,#4fd1c526 0%,#0000 50%),radial-gradient(circle at 80%,#0a4d4a33 0%,#0000 50%);position:absolute;inset:0}.hero-content{text-align:center;color:#fff;z-index:1;padding:48px 24px;position:relative}.hero-title{letter-spacing:8px;color:#fff;text-shadow:0 2px 20px #0003;margin-bottom:12px;font-size:36px;font-weight:300}.hero-subtitle{letter-spacing:3px;opacity:.9;max-width:500px;margin:0 auto;font-size:15px;font-weight:300;line-height:1.8}.hero-divider{background:linear-gradient(90deg,#0000,#fff9,#0000);width:60px;height:1px;margin:20px auto}.section{padding:64px 0}.section-alt{background:var(--bg-warm);padding:64px 0;position:relative}.section-alt:before{content:"";background:linear-gradient(90deg, transparent, var(--border), transparent);height:1px;position:absolute;top:0;left:0;right:0}.section-title{color:var(--primary-deep);letter-spacing:1px;margin-bottom:8px;font-size:24px;font-weight:600;display:inline-block;position:relative}.section-title:after{content:"";background:linear-gradient(90deg, var(--primary), #4fd1c5);border-radius:2px;width:40px;height:3px;position:absolute;bottom:-8px;left:0}.section-desc{color:var(--text-muted);margin-top:16px;margin-bottom:32px;font-size:14px}.post-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;display:grid}.post-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.post-card:before{content:"";background:linear-gradient(180deg, var(--primary), #4fd1c5);opacity:0;width:4px;height:100%;transition:opacity .4s;position:absolute;top:0;left:0}.post-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary-light);transform:translateY(-4px)}.post-card:hover:before{opacity:1}.post-card h3{color:var(--text);margin-bottom:10px;font-size:18px;font-weight:600;line-height:1.5;transition:color .3s}.post-card:hover h3{color:var(--primary)}.post-card h3 a{color:inherit}.post-card .meta{color:var(--text-muted);align-items:center;gap:12px;margin-bottom:12px;font-size:12px;display:flex}.post-card .meta:before{content:"";background:var(--primary-light);border-radius:50%;width:4px;height:4px;display:inline-block}.post-card .summary{color:var(--text-secondary);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:14px;line-height:1.7;display:-webkit-box;overflow:hidden}.post-card .tags{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.tag{background:var(--primary-bg);color:var(--primary);letter-spacing:.3px;border-radius:20px;padding:4px 12px;font-size:11px;font-weight:500;transition:all .3s}.tag:hover{background:var(--primary);color:#fff}.link-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;display:grid}.link-card{border-radius:var(--radius-md);border:1px solid var(--border-light);background:#fff;align-items:center;gap:16px;padding:20px 24px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;overflow:hidden}.link-card:before{content:"";opacity:0;background:linear-gradient(135deg,#4fd1c50d,#0000);width:100%;height:100%;transition:opacity .3s;position:absolute;top:0;left:0}.link-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-2px)}.link-card:hover:before{opacity:1}.link-card h4{color:var(--primary-deep);margin-bottom:4px;font-size:15px;font-weight:600}.link-card p{color:var(--text-muted);font-size:13px;line-height:1.5}.footer{background:var(--bg-dark);color:#ffffffb3;border-top:1px solid #ffffff1a;padding:24px 0 20px}.footer-inner{max-width:var(--max-width-wide);margin:0 auto;padding:0 24px}.footer-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.footer-brand{flex-direction:column;align-items:flex-start;display:flex}.footer-brand-name{color:#fff;letter-spacing:2px;font-size:16px;font-weight:600;line-height:1.2}.footer-brand-en{color:#ffffff80;letter-spacing:1px;margin-top:2px;font-size:11px}.footer-links{flex-wrap:wrap;gap:20px;font-size:13px;display:flex}.footer-links a{color:#ffffffb3;transition:color .3s}.footer-links a:hover{color:#4fd1c5}.footer-bottom{color:#ffffff80;border-top:1px solid #ffffff14;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding-top:16px;font-size:12px;display:flex}.footer-slogan{letter-spacing:.5px;font-style:italic}.footer-stats{align-items:center;gap:16px;display:flex}.footer-stat{align-items:center;gap:4px;display:flex}.back-to-top{background:var(--primary);color:#fff;cursor:pointer;opacity:0;visibility:hidden;z-index:99;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;bottom:32px;right:32px;box-shadow:0 4px 12px #0a4d4a4d}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{background:var(--primary-light);transform:translateY(-3px);box-shadow:0 6px 16px #0a4d4a66}.back-to-top svg{width:20px;height:20px}.prose{font-family:var(--font-serif);color:var(--text);font-size:17px;line-height:1.9}.prose h1{font-family:var(--font-sans);color:var(--primary-deep);margin:48px 0 24px;font-size:28px;font-weight:700;line-height:1.4}.prose h2{font-family:var(--font-sans);color:var(--primary-deep);border-bottom:2px solid var(--border-light);margin:40px 0 20px;padding-bottom:10px;font-size:22px;font-weight:600}.prose h3{font-family:var(--font-sans);color:var(--primary);margin:32px 0 16px;font-size:18px;font-weight:600}.prose p{text-indent:2em;margin:18px 0}.prose p:first-of-type{text-indent:0}.prose strong{color:var(--primary-deep);font-weight:600}.prose blockquote{border-left:4px solid var(--primary);color:var(--text-secondary);background:var(--primary-bg);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:24px 0;padding:12px 24px;font-style:italic}.prose ul,.prose ol{margin:20px 0;padding-left:32px}.prose li{margin:8px 0}.prose code{color:var(--primary);background:#f0f4f3;border-radius:4px;padding:3px 8px;font-size:.9em}.prose pre{background:var(--bg-dark);color:#e8e8e8;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin:24px 0;padding:20px 24px;font-size:14px;line-height:1.6;overflow-x:auto}.prose img{border-radius:var(--radius-md);max-width:100%;box-shadow:var(--shadow-md);margin:28px auto;display:block}.prose hr{background:linear-gradient(90deg, transparent, var(--border), transparent);border:none;height:1px;margin:48px 0}@media (max-width:768px){.header-inner{height:56px}.header-logo{letter-spacing:2px;font-size:18px}.header-nav{gap:16px;font-size:13px}.hero{min-height:220px}.hero-title{letter-spacing:6px;font-size:28px}.hero-subtitle{letter-spacing:2px;font-size:14px}.section{padding:48px 0}.section-title{font-size:20px}.post-grid{grid-template-columns:1fr;gap:16px}.post-card{padding:20px}.link-grid{grid-template-columns:1fr}}