:root{--bg:#1a1a2e;--bg2:#16213e;--surface:#1e1e3c;--surface2:#252550;--text:#e8e6f0;--text2:#a0a0c0;--text3:#6b6b8a;--accent:#c8a45c;--accent2:#e8c87a;--accent-dim:rgba(200,164,92,.15);--border:rgba(255,255,255,.08);--border2:rgba(255,255,255,.15);--radius:8px;--shadow:0 4px 20px rgba(0,0,0,.3)}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--text);font-family:"Noto Serif SC","Microsoft YaHei",serif;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:10px 24px;border-radius:var(--radius);font-size:14px;font-weight:600;transition:all .2s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--accent);color:var(--bg)}
.btn-primary:hover{background:var(--accent2);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-outline.active{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.nav{background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-size:22px;font-weight:700;color:var(--accent);letter-spacing:.05em}
.nav-menu{display:flex;gap:28px}
.nav-link{font-size:15px;color:var(--text2);padding:4px 0;border-bottom:2px solid transparent;transition:all .2s}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--accent);border-bottom-color:var(--accent)}
.nav-user{display:flex;gap:16px;align-items:center}
.nav-user a{font-size:14px;color:var(--text2)}
.nav-user a:hover{color:var(--accent)}
.hero{text-align:center;padding:80px 20px 60px;background:linear-gradient(180deg,var(--bg2) 0%,var(--bg) 100%)}
.hero h1{font-size:clamp(32px,5vw,48px);font-weight:700;margin-bottom:16px;color:var(--text)}
.hero h1 span{color:var(--accent)}
.hero p{font-size:18px;color:var(--text2);max-width:600px;margin:0 auto}
.section{padding:60px 0}
.section-title{font-size:28px;font-weight:700;margin-bottom:32px;display:flex;align-items:center;gap:12px}
.section-title::after{content:'';flex:1;height:1px;background:var(--border)}
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.article-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .3s;display:block}
.article-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.article-card .cat{display:inline-block;font-size:12px;color:var(--accent);background:var(--accent-dim);padding:2px 10px;border-radius:4px;margin-bottom:12px}
.article-card h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.4}
.article-card .summary{font-size:14px;color:var(--text2);line-height:1.6}
.article-card .meta{font-size:12px;color:var(--text3);margin-top:12px}
.game-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .3s;display:block}
.game-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.game-card h3{font-size:18px;font-weight:600;margin-bottom:16px}
.game-players{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.game-player{display:flex;align-items:center;gap:8px;font-size:15px}
.stone{width:16px;height:16px;border-radius:50%;display:inline-block}
.stone.black{background:#222;border:1px solid #444}
.stone.white{background:#f0f0f0;border:1px solid #ccc}
.game-meta{font-size:13px;color:var(--text3)}
.game-result{color:var(--accent);font-weight:600}
.features{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px;margin-bottom:60px}
.feature-item{text-align:center;padding:32px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.feature-item .icon{font-size:40px;margin-bottom:16px}
.feature-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.feature-item p{font-size:14px;color:var(--text2)}
.article-detail{max-width:800px;margin:0 auto;padding:40px 20px}
.article-detail h1{font-size:32px;font-weight:700;margin-bottom:16px}
.article-detail .meta{color:var(--text3);font-size:14px;margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.article-detail .content{font-size:16px;line-height:1.9}
.article-detail .content h2{font-size:22px;margin:24px 0 12px}
.article-detail .content p{margin-bottom:16px}
.article-detail .content img{border-radius:var(--radius);margin:16px 0}
.filter-bar{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.empty{text-align:center;padding:60px 20px;color:var(--text3);font-size:16px}
.goban{display:grid;gap:0;background:#dcb35c;padding:20px;border-radius:4px;max-width:600px;margin:0 auto}
.goban-cell{width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative}
.goban-stone{width:24px;height:24px;border-radius:50%;box-shadow:0 1px 3px rgba(0,0,0,.4)}
.goban-stone.black{background:radial-gradient(circle at 35% 35%,#555,#111)}
.goban-stone.white{background:radial-gradient(circle at 35% 35%,#fff,#ddd)}
.form-box{max-width:400px;margin:40px auto;padding:40px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.form-box h1{font-size:24px;text-align:center;margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;margin-bottom:6px;font-size:14px;color:var(--text2)}
.form-group input{width:100%;padding:12px;background:var(--bg);border:1px solid var(--border2);border-radius:var(--radius);color:var(--text);font-size:15px;font-family:inherit}
.form-group input:focus{outline:none;border-color:var(--accent)}
.form-box .btn{width:100%;text-align:center}
.form-box .error{background:rgba(255,80,80,.1);color:#ff8080;padding:12px;border-radius:var(--radius);margin-bottom:20px;font-size:14px}
.form-box .switch{text-align:center;margin-top:20px;font-size:14px;color:var(--text2)}
.form-box .switch a{color:var(--accent)}
footer{border-top:1px solid var(--border);padding:32px 0;text-align:center;color:var(--text3);font-size:13px}
@media(max-width:768px){.nav-menu{display:none}.article-grid{grid-template-columns:1fr}.features{grid-template-columns:1fr 1fr}}