*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;font-family:'Inter',system-ui,sans-serif;font-size:14px;overflow-x:hidden;}
body{background:var(--sky0,#0a0f1e);transition:background 0.8s;}

/* CSS 变量 */
:root{
  --sky0:#0a0f1e;--sky1:#05070e;
  --nav-bg:rgba(124,131,255,0.08);--nav-border:rgba(124,131,255,0.15);
  --text:#e0e4f8;--sub:#5a6480;--accent:#7c83ff;--accent2:#4af0b0;
  --btn-p:linear-gradient(135deg,#7c83ff,#4af0b0);--btn-p-text:#05070e;
  --btn-o-bg:rgba(124,131,255,0.1);--btn-o-border:rgba(124,131,255,0.4);--btn-o-text:#7c83ff;
}

/* 顶部导航 */
#topnav{
  position:fixed;top:0;left:0;right:0;height:52px;z-index:100;
  display:flex;align-items:center;justify-content:center;gap:28px;
  padding:0 24px;
  background:var(--nav-bg);
  border-bottom:1px solid var(--nav-border);
  backdrop-filter:blur(12px);
  transition:background 0.6s,border-color 0.6s;
}
#topnav .nav-link{
  color:var(--sub);font-size:13px;cursor:pointer;
  padding-bottom:2px;border-bottom:2px solid transparent;
  transition:color 0.3s,border-color 0.3s;
}
#topnav .nav-link.active{color:var(--text);border-bottom-color:var(--accent);}
#topnav .nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
#topnav .game-tags{color:var(--sub);font-size:11px;letter-spacing:0.05em;}
#topnav .login-btn{
  font-size:11px;padding:3px 12px;border-radius:12px;cursor:pointer;
  color:var(--accent);border:1px solid var(--btn-o-border);
  background:var(--btn-o-bg);transition:color 0.3s,border-color 0.3s,background 0.3s;
}

/* 底部导航（移动端） */
#botnav{
  display:none;position:fixed;bottom:0;left:0;right:0;height:54px;z-index:100;
  background:var(--nav-bg);border-top:1px solid var(--nav-border);
  backdrop-filter:blur(12px);
  flex-direction:row;align-items:center;justify-content:space-around;
  transition:background 0.6s,border-color 0.6s;
}
#botnav .bot-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:9px;color:var(--sub);cursor:pointer;flex:1;padding:6px 0;
  transition:color 0.3s;
}
#botnav .bot-item.active{color:var(--accent);}
#botnav .bot-icon{font-size:18px;line-height:1;}

/* 页面容器 */
.page{display:none;}
.page.active{display:block;}

/* 首页：锁定一屏 */
#page-home{
  position:relative;height:100vh;overflow:hidden;
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,var(--sky0) 0%,var(--sky1) 100%);
  transition:background 0.8s;
}

/* 内页：可滚动，顶部留出导航高度 */
#page-updates,#page-projects,#page-contact{
  height:100vh;overflow-y:auto;
  background:linear-gradient(180deg,var(--sky0) 0%,var(--sky1) 100%);
  transition:background 0.8s;
}
#sky-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;}
.hero{
  position:relative;z-index:2;
  height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:52px 20px 0;text-align:center;overflow:hidden;
}
.hero-glow{
  position:absolute;top:30%;left:50%;transform:translate(-50%,-50%);
  width:500px;height:500px;border-radius:50%;pointer-events:none;
  background:radial-gradient(ellipse,var(--glow-color,rgba(124,131,255,0.12)) 0%,transparent 70%);
  transition:background 0.8s;
}
.danmu-wrap{
  position:absolute;top:60px;left:0;right:0;height:22px;
  overflow:hidden;pointer-events:none;z-index:3;
}
.danmu-text{
  display:inline-block;white-space:nowrap;font-size:11px;
  color:var(--danmu-color,rgba(124,131,255,0.3));
  animation:danmu 18s linear infinite;
}
@keyframes danmu{from{transform:translateX(100vw);}to{transform:translateX(-100%);}}
.eyebrow{color:var(--sub);font-size:11px;letter-spacing:0.18em;margin-bottom:10px;transition:color 0.6s;}
.hero-title{
  color:var(--text);font-size:72px;font-weight:800;letter-spacing:-0.04em;
  text-shadow:var(--title-shadow,none);transition:color 0.6s,text-shadow 0.6s;
  line-height:1;margin-bottom:6px;
}
.hero-title span{color:var(--accent);font-style:normal;transition:color 0.6s;}
.hero-desc{color:var(--sub);font-size:14px;margin:10px 0 20px;transition:color 0.6s;}
.online-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;padding:4px 12px;border-radius:14px;margin-bottom:20px;
  color:var(--accent2);background:var(--badge-bg,rgba(74,240,176,0.1));
  border:1px solid var(--badge-border,rgba(74,240,176,0.25));
  transition:color 0.6s,background 0.6s,border-color 0.6s;
}
.badge-dot{width:7px;height:7px;border-radius:50%;background:var(--accent2);transition:background 0.6s;}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;}
.btn-p{
  font-size:13px;padding:9px 24px;border-radius:22px;font-weight:700;cursor:pointer;
  background:var(--btn-p);color:var(--btn-p-text);border:none;
  transition:background 0.6s,color 0.6s,box-shadow 0.6s;box-shadow:0 4px 16px rgba(124,131,255,0.25);
}
.btn-o{
  font-size:13px;padding:9px 24px;border-radius:22px;cursor:pointer;
  background:var(--btn-o-bg);color:var(--btn-o-text);
  border:1px solid var(--btn-o-border);transition:background 0.6s,color 0.6s,border-color 0.6s;
}

/* 内页通用 */
.inner-page{
  max-width:860px;margin:0 auto;padding:80px 32px 80px;
  background:transparent;
}
.page-header{margin-bottom:36px;}
.page-header h2{color:var(--text);font-size:28px;font-weight:800;margin-bottom:6px;transition:color 0.6s;}
.page-header p{color:var(--sub);font-size:13px;transition:color 0.6s;}

/* 动态页 */
.timeline{position:relative;padding-left:24px;}
.timeline::before{
  content:'';position:absolute;left:0;top:8px;bottom:0;
  width:1px;background:var(--tl-line,rgba(124,131,255,0.15));transition:background 0.6s;
}
.tl-item{position:relative;margin-bottom:36px;}
.tl-item::before{
  content:'';position:absolute;left:-28px;top:7px;
  width:9px;height:9px;border-radius:50%;
  background:var(--accent);border:2px solid var(--sky0);
  box-shadow:0 0 8px var(--accent);transition:background 0.6s,border-color 0.6s;
}
.tl-meta{display:flex;align-items:center;gap:8px;margin-bottom:7px;}
.tl-tag{font-size:10px;padding:2px 8px;border-radius:4px;font-weight:600;letter-spacing:0.04em;}
.tag-ai   {background:rgba(124,131,255,0.15);color:#9098ff;border:1px solid rgba(124,131,255,0.2);}
.tag-ops  {background:rgba(74,240,176,0.1); color:#4af0b0;border:1px solid rgba(74,240,176,0.2);}
.tag-proj {background:rgba(234,179,8,0.1);  color:#eab308;border:1px solid rgba(234,179,8,0.2);}
.tag-game {background:rgba(134,197,100,0.1);color:#86c564;border:1px solid rgba(134,197,100,0.2);}
.tl-date{color:var(--sub);font-size:11px;opacity:0.7;}
.tl-title{color:var(--text);font-size:15px;font-weight:700;margin-bottom:6px;transition:color 0.6s;}
.tl-desc{color:var(--sub);font-size:13px;line-height:1.7;transition:color 0.6s;}
.tl-quote{
  margin-top:10px;padding:8px 12px;
  border-left:2px solid var(--accent);opacity:0.6;
  background:var(--quote-bg,rgba(124,131,255,0.05));
  border-radius:0 6px 6px 0;
  color:var(--sub);font-size:12px;font-style:italic;transition:color 0.6s,background 0.6s,border-color 0.6s;
}

/* 项目页 */
.projects-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.proj-card{
  background:var(--card-bg,rgba(255,255,255,0.03));
  border:1px solid var(--card-border,rgba(124,131,255,0.1));
  border-radius:10px;padding:22px 24px;cursor:pointer;
  transition:border-color 0.2s,transform 0.2s,background 0.6s;
}
.proj-card:hover{border-color:var(--accent);transform:translateY(-3px);}
.proj-card.wide{grid-column:span 2;}
.proj-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:10px;}
.proj-name{color:var(--text);font-size:15px;font-weight:700;transition:color 0.6s;}
.status{font-size:10px;padding:2px 8px;border-radius:10px;}
.status-on{background:rgba(74,240,176,0.1);color:#4af0b0;border:1px solid rgba(74,240,176,0.25);}
.status-wip{background:rgba(234,179,8,0.1);color:#eab308;border:1px solid rgba(234,179,8,0.25);}
.proj-desc{color:var(--sub);font-size:12px;line-height:1.7;margin-bottom:14px;transition:color 0.6s;}
.tech-list{display:flex;flex-wrap:wrap;gap:6px;}
.tech{font-size:10px;padding:2px 8px;border-radius:4px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);color:var(--sub);}
.tech.go  {border-color:rgba(0,173,216,0.3);color:#00add8;}
.tech.js  {border-color:rgba(247,223,30,0.3);color:#c8b800;}
.tech.html{border-color:rgba(227,76,38,0.3);color:#e34c26;}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.contact-info h3,.comments-box h3{color:var(--text);font-size:16px;font-weight:700;margin-bottom:18px;transition:color 0.6s;}
.contact-link{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:8px;margin-bottom:12px;
  border:1px solid var(--card-border,rgba(124,131,255,0.1));
  background:var(--card-bg,rgba(255,255,255,0.03));
  cursor:pointer;text-decoration:none;
  transition:border-color 0.2s,background 0.6s;
}
.contact-link:hover{border-color:var(--accent);}
.c-icon{font-size:18px;width:28px;text-align:center;}
.c-label{color:var(--sub);font-size:10px;letter-spacing:0.1em;text-transform:uppercase;margin-bottom:2px;}
.c-val{color:var(--text);font-size:12px;transition:color 0.6s;}
.comment-item{display:flex;gap:10px;margin-bottom:18px;}
.avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--sky0);}
.cm-user{color:var(--text);font-size:12px;font-weight:600;transition:color 0.6s;}
.cm-date{color:var(--sub);font-size:10px;margin-left:8px;}
.cm-text{color:var(--sub);font-size:12px;line-height:1.6;margin-top:3px;transition:color 0.6s;}
.comment-input{
  margin-top:16px;padding:12px 16px;width:100%;
  border:1px solid var(--card-border,rgba(124,131,255,0.1));
  border-radius:8px;background:var(--card-bg,rgba(255,255,255,0.02));
  color:var(--sub);font-size:12px;font-family:inherit;resize:none;
  transition:color 0.6s,background 0.6s,border-color 0.6s;
}
.comment-hint{color:var(--sub);font-size:11px;margin-top:8px;opacity:0.7;}
.comment-hint a{color:var(--accent);}

/* 响应式 */
@media(max-width:768px){
  #topnav{display:none;}
  #botnav{display:flex;}
  #app{height:100vh;}
  .page{height:calc(100vh - 54px);}
  .hero-title{font-size:48px;}
  .inner-page{padding:24px 20px 60px;}
  .projects-grid{grid-template-columns:1fr;}
  .proj-card.wide{grid-column:span 1;}
  .contact-grid{grid-template-columns:1fr;}
}

/* 管理员控件 */
.admin-add-btn {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 10px;
  background: rgba(124,131,255,0.1);
  border: 1px dashed rgba(124,131,255,0.3);
  border-radius: 8px;
  color: var(--accent);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}
.admin-add-btn:hover { background: rgba(124,131,255,0.2); }

.admin-tl-actions { margin-left: auto; display: flex; gap: 6px; }
.admin-edit-btn, .admin-del-btn {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  border: 1px solid rgba(124,131,255,0.25);
  background: rgba(124,131,255,0.08);
  color: var(--accent);
}
.admin-del-btn { border-color: rgba(255,80,80,0.25); background: rgba(255,80,80,0.08); color: #ff6060; }
.admin-del-comment {
  padding: 1px 7px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  border: 1px solid rgba(255,80,80,0.25);
  background: rgba(255,80,80,0.08);
  color: #ff6060;
}