/* =====================================================================
   无畏契约点位学院 - 液态玻璃科技感设计系统
   ===================================================================== */

:root {
  /* 配色 */
  --bg-0: #050811;
  --bg-1: #0a0e1a;
  --bg-2: #111827;
  --bg-3: #1a2238;
  --neon-cyan: #00f0ff;
  --neon-pink: #ff2e92;
  --neon-purple: #7c3aed;
  --neon-green: #00ff9d;
  --neon-yellow: #ffd700;
  /* RGB 通道（供 rgba() 使用） */
  --neon-cyan-rgb: 0, 240, 255;
  --neon-pink-rgb: 255, 46, 146;
  --neon-purple-rgb: 124, 58, 237;
  --neon-green-rgb: 0, 255, 157;
  --neon-yellow-rgb: 255, 215, 0;
  --neon-red-rgb: 239, 68, 68;
  /* 星级评分金色（统一抽取） */
  --star-gold: #ffd84d;
  --star-gold-soft: #ffe680;
  --star-orange: #ff9d2e;
  --text-0: #f8fafc;
  --text-1: #e2e8f0;
  --text-2: #94a3b8;
  --text-3: #7c8aa5; /* 提亮以满足 WCAG AA 4.5:1（原 #64748b 仅 4.19:1） */
  --border: rgba(0, 240, 255, 0.18);
  --border-strong: rgba(0, 240, 255, 0.4);

  /* 玻璃 */
  --glass-bg: rgba(17, 24, 39, 0.55);
  --glass-bg-2: rgba(26, 34, 56, 0.65);
  --glass-blur: 18px;
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.12);

  /* 渐变 */
  --grad-primary: linear-gradient(135deg, #00f0ff 0%, #7c3aed 100%);
  --grad-energy: linear-gradient(135deg, #ff2e92 0%, #7c3aed 100%);
  --grad-cyber: linear-gradient(135deg, #00f0ff 0%, #00ff9d 100%);
  --grad-fire: linear-gradient(135deg, #ff2e92 0%, #ffd700 100%);

  /* 阴影 */
  --shadow-glow-cyan: 0 0 24px rgba(0, 240, 255, 0.35);
  --shadow-glow-pink: 0 0 24px rgba(255, 46, 146, 0.35);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);

  /* 尺寸 */
  --nav-h: 68px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
}

/* ===================== 夜间主题（默认） ===================== */
:root, [data-theme="night"] {
  --bg-0: #050811;
  --bg-1: #0a0e1a;
  --bg-2: #111827;
  --bg-3: #1a2238;
  --neon-cyan: #00f0ff;
  --neon-pink: #ff2e92;
  --neon-purple: #7c3aed;
  --text-0: #f8fafc;
  --text-1: #e2e8f0;
  --text-2: #94a3b8;
  --text-3: #7c8aa5;
  --border: rgba(0, 240, 255, 0.18);
  --glass-bg: rgba(17, 24, 39, 0.55);
  --glass-bg-2: rgba(26, 34, 56, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --bg-glow-1: rgba(0, 240, 255, 0.12);
  --bg-glow-2: rgba(255, 46, 146, 0.10);
  --bg-glow-3: rgba(124, 58, 237, 0.12);
  --grid-line: rgba(0, 240, 255, 0.03);
}

/* ===================== 白天主题 ===================== */
[data-theme="day"] {
  --bg-0: #e8eef5;
  --bg-1: #f1f5f9;
  --bg-2: #ffffff;
  --bg-3: #e2e8f0;
  --neon-cyan: #0891b2;
  --neon-pink: #db2777;
  --neon-purple: #6d28d9;
  --text-0: #0f172a;
  --text-1: #1e293b;
  --text-2: #475569;
  --text-3: #64748b;
  --border: rgba(8, 145, 178, 0.22);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-2: rgba(248, 250, 252, 0.75);
  --glass-border: rgba(15, 23, 42, 0.08);
  --glass-highlight: rgba(15, 23, 42, 0.04);
  --bg-glow-1: rgba(8, 145, 178, 0.10);
  --bg-glow-2: rgba(219, 39, 119, 0.08);
  --bg-glow-3: rgba(109, 40, 217, 0.08);
  --grid-line: rgba(8, 145, 178, 0.05);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Noto Sans SC', system-ui, sans-serif;
  background: var(--bg-1);
  color: var(--text-1);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}
/* 动态背景层 */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, var(--bg-glow-1), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 30%, var(--bg-glow-2), transparent 60%),
    radial-gradient(ellipse 60% 60% at 50% 90%, var(--bg-glow-3), transparent 60%),
    var(--bg-1);
}
body::after {
  content: ''; position: fixed; inset: -60px; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 80%);
  animation: gridShift 30s linear infinite;
  will-change: transform;
  transform: translateZ(0);
}
@keyframes gridShift { from { transform: translate(0, 0); } to { transform: translate(60px, 60px); } }

#particles-canvas { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.7; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--neon-cyan); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; font-size: 15px; }

/* ===== 全局焦点可见性（WCAG 2.4.7） ===== */
:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
  border-radius: 4px;
}
.btn:focus-visible { outline-offset: 2px; box-shadow: 0 0 0 3px rgba(0,240,255,0.3); }
.tutorial-card:focus-visible, .nav-links a:focus-visible, .pagination a:focus-visible,
.oauth-btn:focus-visible, .mobile-tabbar a:focus-visible, .admin-nav a:focus-visible {
  outline-offset: 0; box-shadow: 0 0 0 2px var(--neon-cyan);
}
.modal-close:focus-visible { box-shadow: 0 0 0 2px var(--neon-pink); }

/* ===== 星级评分公共组件（取代 4 处重复 inline style） ===== */
.star-row, .star-input { display: inline-flex; gap: 4px; align-items: center; }
.star { font-size: 22px; color: rgba(255,255,255,0.15); line-height: 1;
  transition: color .15s, transform .15s; user-select: none; }
.star.filled { color: var(--star-gold); text-shadow: 0 0 8px rgba(255,216,77,0.6); }
.star.half { color: var(--star-gold); opacity: .55; }
.stars-readonly .star { cursor: default; }
.star-input:not(.disabled) .star { cursor: pointer; padding: 4px 2px; }
.star-input:not(.disabled) .star:hover { color: var(--star-gold-soft); transform: scale(1.2); }
.star-input.disabled { opacity: .6; }
.star-input .star.flash { animation: starFlash .5s; }
@keyframes starFlash { 0%,100%{transform:scale(1)} 50%{transform:scale(1.4);color:var(--star-orange)} }

/* ===== backdrop-filter 降级（低端设备） ===== */
@supports not ((backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px))) {
  .glass, .glass-strong, .navbar, .modal-overlay, .toast, .admin-sidebar,
  .mobile-tabbar, .nav-links.show {
    background: rgba(10, 14, 26, 0.92) !important;
  }
}
.low-end .glass, .low-end .glass-strong { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }

h1, h2, h3, h4 { font-family: 'Rajdhani', 'Noto Sans SC', sans-serif; font-weight: 700; line-height: 1.2; color: var(--text-0); }
.font-tech { font-family: 'Orbitron', sans-serif; letter-spacing: .04em; }
.font-mono { font-family: 'JetBrains Mono', monospace; }

/* ---------- 液态玻璃卡片 ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card), inset 0 1px 0 var(--glass-highlight);
  position: relative;
  overflow: hidden;
}
.glass::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,0.06), transparent 40%);
}
.glass-strong { background: var(--glass-bg-2); backdrop-filter: blur(24px) saturate(1.6); }

/* 渐变描边 */
.glow-border { position: relative; }
.glow-border::after {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: var(--grad-primary);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}

/* ---------- 顶部导航 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 100; height: var(--nav-h);
  background: rgba(10, 14, 26, 0.75);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.navbar-glow {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-pink), var(--neon-purple), var(--neon-green), transparent);
  background-size: 200% 100%;
  animation: navFlow 6s linear infinite;
  opacity: 0.6;
}
@keyframes navFlow { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }
.navbar-inner {
  max-width: 1320px; margin: 0 auto; height: 100%; padding: 0 24px;
  display: flex; align-items: center; gap: 28px; position: relative; z-index: 1;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; flex-shrink: 0;
}
.brand-icon {
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad-primary); display: grid; place-items: center;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
  position: relative; transition: transform .3s, box-shadow .3s;
}
.brand-icon span { color: var(--bg-1); font-weight: 900; font-family: 'Orbitron'; font-size: 22px; }
.brand:hover .brand-icon { transform: scale(1.08) rotate(-3deg); box-shadow: 0 0 24px rgba(0, 240, 255, 0.6); }
.brand-text {
  font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 19px;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: .06em;
}
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-links a {
  padding: 7px 14px; border-radius: 8px; font-weight: 500; font-size: 14px; color: var(--text-2);
  position: relative; transition: all .25s; text-decoration: none;
}
.nav-links a:hover { color: var(--neon-cyan); background: rgba(0, 240, 255, 0.06); }
.nav-links a.active { color: var(--neon-cyan); background: rgba(0, 240, 255, 0.1); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 60%; height: 2px; background: var(--grad-primary); border-radius: 2px;
  box-shadow: 0 0 8px var(--neon-cyan);
}
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-icon-btn {
  position: relative; display: grid; place-items: center; width: 38px; height: 38px;
  border-radius: 10px; color: var(--text-2); transition: all .25s; cursor: pointer;
  border: 1px solid transparent; background: transparent;
}
.nav-icon-btn:hover { color: var(--neon-cyan); background: rgba(0, 240, 255, 0.08); border-color: var(--border); }
.nav-avatar { text-decoration: none; }
.nav-auth-btn { display: inline-flex; align-items: center; gap: 6px; }
.menu-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 4px;
  width: 36px; height: 36px; border: 0; background: transparent; cursor: pointer; padding: 0;
}
.menu-toggle span { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--text-1); transition: all .3s; }
.menu-toggle:hover span { background: var(--neon-cyan); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 22px; border-radius: 10px; font-weight: 600; font-size: 14px;
  cursor: pointer; transition: transform .25s cubic-bezier(.4,0,.2,1), background .25s, color .25s, border-color .25s, box-shadow .15s; position: relative; overflow: hidden;
  border: 1px solid transparent; white-space: nowrap;
}
.btn-primary {
  background: var(--grad-primary); color: var(--bg-1);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5); color: var(--bg-1); }
.btn-energy { background: var(--grad-energy); color: #fff; box-shadow: 0 4px 20px rgba(255, 46, 146, 0.3); }
.btn-energy:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255, 46, 146, 0.5); color: #fff; }
.btn-ghost {
  background: rgba(255,255,255,0.04); border-color: var(--glass-border); color: var(--text-1);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); background: rgba(0,240,255,0.08); }
.btn-danger { background: linear-gradient(135deg, #ef4444, #b91c1c); color: #fff; }
.btn-danger:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }
/* 涟漪 */
.btn::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(circle at var(--rx,50%) var(--ry,50%), rgba(255,255,255,0.4), transparent 40%);
  opacity: 0; transition: opacity .5s;
}
.btn:active::after { opacity: 1; transition: 0s; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; color: var(--text-2); font-size: 13px; font-weight: 500; }
.input, .textarea, .select {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  background: rgba(5, 8, 17, 0.6); border: 1px solid var(--glass-border);
  color: var(--text-0); transition: all .2s; outline: none;
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--neon-cyan); box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
  background: rgba(5, 8, 17, 0.85);
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
.input::placeholder, .textarea::placeholder { color: var(--text-3); }

/* 密码强度条 */
.pwd-strength { display: flex; gap: 4px; margin-top: 8px; }
.pwd-strength span { flex: 1; height: 4px; border-radius: 2px; background: rgba(255,255,255,0.08); transition: background .3s; }
.pwd-checks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; font-size: 12px; }
.pwd-check { color: var(--text-3); display: flex; align-items: center; gap: 4px; }
.pwd-check.ok { color: var(--neon-green); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 20px; }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* 教程卡片 */
.tutorial-card {
  display: block; padding: 20px; transition: transform .3s cubic-bezier(.4,0,.2,1), border-color .3s, box-shadow .15s;
  position: relative; cursor: pointer;
}
.tutorial-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-glow-cyan), var(--shadow-card); }
.tutorial-card .tc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag {
  padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 600;
  background: rgba(0,240,255,0.1); color: var(--neon-cyan); border: 1px solid rgba(0,240,255,0.2);
}
.tag-pink { background: rgba(255,46,146,0.1); color: var(--neon-pink); border-color: rgba(255,46,146,0.2); }
.tag-purple { background: rgba(124,58,237,0.1); color: #a78bfa; border-color: rgba(124,58,237,0.2); }
.tag-green { background: rgba(0,255,157,0.1); color: var(--neon-green); border-color: rgba(0,255,157,0.2); }
.tag-yellow { background: rgba(255,215,0,0.1); color: var(--neon-yellow); border-color: rgba(255,215,0,0.2); }
.tutorial-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-0); }
.tutorial-card .tc-meta { display: flex; gap: 14px; color: var(--text-3); font-size: 13px; margin-top: 12px; }
.tutorial-card .tc-stats { display: flex; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--glass-border); font-size: 13px; color: var(--text-2); }
.tutorial-card .tc-stats span { display: flex; align-items: center; gap: 4px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 80px 24px 60px; text-align: center; overflow: hidden; }
.hero h1 {
  font-family: 'Orbitron', sans-serif; font-size: clamp(36px, 6vw, 68px); font-weight: 900;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: .02em; margin-bottom: 20px; line-height: 1.1;
}
.hero p { font-size: clamp(15px, 2vw, 19px); color: var(--text-2); max-width: 720px; margin: 0 auto 32px; }
.hero .welcome-typewriter {
  font-family: 'Rajdhani'; font-size: clamp(18px, 3vw, 26px); font-weight: 600;
  color: var(--neon-cyan); margin-bottom: 24px; min-height: 36px;
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}
.hero .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* 统计概览 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 1100px; margin: 48px auto 0; }
.stat-card { padding: 24px; text-align: center; }
.stat-card .num {
  font-family: 'Orbitron'; font-size: clamp(28px, 4vw, 42px); font-weight: 900;
  background: var(--grad-cyber); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-card .label { color: var(--text-2); font-size: 14px; margin-top: 6px; }

/* ---------- 容器 ---------- */
.container { max-width: 1320px; margin: 0 auto; padding: 0 24px; }
.section { padding: 60px 0; }
.section-title {
  display: flex; align-items: center; gap: 14px; margin-bottom: 32px;
}
.section-title h2 { font-size: 28px; }
.section-title .line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--neon-cyan), transparent); }

/* ---------- 筛选栏 ---------- */
.filter-bar { padding: 18px 22px; margin-bottom: 24px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.filter-tabs { display: flex; gap: 6px; padding: 4px; background: rgba(0,0,0,0.3); border-radius: 10px; }
.filter-tabs button { padding: 8px 18px; border-radius: 8px; font-size: 13px; font-weight: 600; color: var(--text-2); transition: all .2s; }
.filter-tabs button.active { background: var(--grad-primary); color: var(--bg-1); }

/* ---------- 分页 ---------- */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 32px; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 8px; padding: 0 10px; font-size: 14px; font-weight: 600;
  background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border); color: var(--text-2);
}
.pagination a:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }
.pagination .active { background: var(--grad-primary); color: var(--bg-1); border-color: transparent; }
.pagination .disabled { opacity: .4; cursor: not-allowed; }

/* ---------- 弹窗 ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: none; place-items: center;
  background: rgba(5, 8, 17, 0.75);
  backdrop-filter: blur(8px);
  padding: 20px;
  /* 修复弹窗内容超出视口无法滚动的问题 */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  /* 自定义滚动条 */
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.25) transparent;
}
.modal-overlay::-webkit-scrollbar { width: 6px; }
.modal-overlay::-webkit-scrollbar-track { background: transparent; }
.modal-overlay::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.25);
  border-radius: 3px;
}
.modal-overlay::-webkit-scrollbar-thumb:hover { background: rgba(0, 240, 255, 0.5); }
.modal-overlay.show { display: grid; animation: fadeIn .3s; }
.modal {
  width: 100%; max-width: 440px; padding: 36px; border-radius: var(--radius-lg);
  animation: slideUp .4s cubic-bezier(.4,0,.2,1); position: relative;
}
.modal-lg { max-width: 760px; }
.modal-xl { max-width: 1100px; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; color: var(--text-2); transition: all .2s; }
.modal-close:hover { background: rgba(255,46,146,0.15); color: var(--neon-pink); }
.modal h2 { font-size: 24px; margin-bottom: 8px; }
.modal .modal-sub { color: var(--text-2); font-size: 14px; margin-bottom: 24px; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- OAuth 按钮 ---------- */
.oauth-row { display: flex; gap: 12px; margin-top: 20px; }
.oauth-btn {
  flex: 1; padding: 10px; border-radius: 10px; border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04); display: grid; place-items: center; transition: all .2s;
  font-weight: 600; font-size: 13px; color: var(--text-2);
}
.oauth-btn:hover { transform: translateY(-2px); border-color: var(--neon-cyan); color: var(--text-0); }
.oauth-btn .icon { font-size: 18px; margin-right: 6px; }

/* ---------- Toast ---------- */
.toast-wrap { position: fixed; top: 88px; right: 24px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 12px 20px; border-radius: 10px; font-size: 14px; font-weight: 500;
  animation: slideInRight .3s; min-width: 240px; max-width: 360px;
  backdrop-filter: blur(16px); border: 1px solid var(--glass-border);
}
.toast-success { background: rgba(0,255,157,0.15); color: var(--neon-green); border-color: rgba(0,255,157,0.3); }
.toast-error { background: rgba(255,46,146,0.15); color: var(--neon-pink); border-color: rgba(255,46,146,0.3); }
.toast-info { background: rgba(0,240,255,0.15); color: var(--neon-cyan); border-color: rgba(0,240,255,0.3); }
@keyframes slideInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }

/* ---------- 评论 ---------- */
.comment { padding: 16px 0; border-bottom: 1px solid var(--glass-border); }
.comment-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--grad-primary); display: grid; place-items: center; font-weight: 700; color: var(--bg-1); overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.comment-body { padding-left: 46px; }
.comment-actions { display: flex; gap: 14px; margin-top: 8px; font-size: 13px; color: var(--text-3); }
.comment-actions a:hover { color: var(--neon-cyan); }
.comment-children { padding-left: 46px; margin-top: 8px; }

/* ---------- 评判卡片 ---------- */
.vote-card { padding: 22px; margin-bottom: 18px; }
.vote-card .vc-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
.vote-progress { height: 8px; border-radius: 4px; background: rgba(255,255,255,0.08); overflow: hidden; margin: 14px 0; }
.vote-progress > div { height: 100%; background: var(--grad-cyber); transition: width .5s; }
.vote-progress-split { display: flex; height: 10px; border-radius: 5px; overflow: hidden; margin: 14px 0; }
.vote-progress-split .pass { background: var(--neon-green); transition: width .5s; }
.vote-progress-split .reject { background: var(--neon-pink); transition: width .5s; }
.countdown { font-family: 'JetBrains Mono'; font-size: 13px; color: var(--neon-yellow); }

/* ---------- 状态徽章 ---------- */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.badge-published { background: rgba(0,255,157,0.15); color: var(--neon-green); }
.badge-vote { background: rgba(0,240,255,0.15); color: var(--neon-cyan); }
.badge-review { background: rgba(255,215,0,0.15); color: var(--neon-yellow); }
.badge-rejected { background: rgba(255,46,146,0.15); color: var(--neon-pink); }
.badge-pending { background: rgba(148,163,184,0.15); color: var(--text-2); }

/* ---------- 空状态 ---------- */
.empty .ico { font-size: 48px; margin-bottom: 16px; opacity: .5; }

/* ---------- 头像组 ---------- */
.avatar-sm { width: 28px; height: 28px; font-size: 12px; }
.avatar-lg { width: 64px; height: 64px; font-size: 22px; }

/* ---------- 工具类 ---------- */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.text-cyan { color: var(--neon-cyan); }
.text-pink { color: var(--neon-pink); }
.text-green { color: var(--neon-green); }
.text-yellow { color: var(--neon-yellow); }
.text-muted { color: var(--text-3); }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; } .mt-8 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; } .mb-4 { margin-bottom: 16px; } .mb-6 { margin-bottom: 24px; }
.w-full { width: 100%; }
.hidden { display: none; }

/* ---------- 后台 ---------- */
.admin-body { background: var(--bg-0); }
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px; background: rgba(10, 14, 26, 0.9); backdrop-filter: blur(20px);
  border-right: 1px solid var(--border); padding: 20px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-sidebar .brand { padding: 0 20px 24px; font-size: 18px; }
.admin-nav a {
  display: flex; align-items: center; gap: 12px; padding: 12px 20px; color: var(--text-2);
  border-left: 3px solid transparent; transition: all .2s; font-weight: 500;
}
.admin-nav a:hover, .admin-nav a.active { background: rgba(0,240,255,0.06); color: var(--neon-cyan); border-left-color: var(--neon-cyan); }
.admin-main { flex: 1; padding: 32px; max-width: calc(100% - 240px); }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.admin-card { padding: 24px; margin-bottom: 20px; }

/* 看板统计卡 */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-bottom: 28px; }
.kpi { padding: 22px; position: relative; overflow: hidden; }
.kpi .kpi-num { font-family: 'Orbitron'; font-size: 32px; font-weight: 900; color: var(--neon-cyan); }
.kpi .kpi-label { color: var(--text-2); font-size: 13px; margin-top: 4px; }
.kpi .kpi-icon { position: absolute; top: 16px; right: 16px; font-size: 28px; opacity: .25; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--glass-border); font-size: 14px; }
.table th { color: var(--text-2); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; background: rgba(0,240,255,0.04); position: sticky; top: 0; z-index: 1; }
.table tbody tr:nth-child(even) td { background: rgba(255,255,255,0.015); }
.table tr:hover td { background: rgba(0,240,255,0.06); }

/* ===== 公共组件类（替换高频 inline style） ===== */
.breadcrumb { color: var(--text-3); font-size: 13px; margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--neon-cyan); }
.breadcrumb .text-cyan { color: var(--neon-cyan); }
.detail-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; }
.profile-grid { display: grid; grid-template-columns: 320px 1fr; gap: 24px; align-items: start; }
.upload-grid { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.stat-big { font-family: 'Orbitron', monospace; font-size: clamp(32px, 6vw, 42px); font-weight: 900;
  background: linear-gradient(135deg, var(--star-gold), var(--star-orange));
  -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.detail-title { font-size: clamp(24px, 3.5vw, 34px); margin-bottom: 18px; }
.tutorial-article { padding: 32px; }
/* ===== 网站底栏（液态玻璃增强版） ===== */
.site-footer {
  width: 100%;
  margin-top: 80px;
  position: relative;
  border-top: 1px solid var(--glass-border);
  /* 液态玻璃：多层渐变 + 强模糊 + 饱和度 */
  background:
    linear-gradient(135deg, rgba(17, 24, 39, 0.72), rgba(26, 34, 56, 0.68)),
    radial-gradient(ellipse at 20% 0%, rgba(0, 240, 255, 0.04), transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(255, 46, 146, 0.03), transparent 50%);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  overflow: hidden;
}
/* 顶部高光带（液态玻璃边缘光） */
.site-footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 10%, rgba(255, 255, 255, 0.15) 50%, transparent 90%);
  pointer-events: none;
}
.footer-glow {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-purple), var(--neon-pink), var(--neon-cyan), transparent);
  background-size: 200% 100%;
  animation: navFlow 8s linear infinite;
  opacity: 0.5;
}

/* 运行计时器层 */
.footer-runtime {
  width: 100%;
  padding: 14px 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  background: linear-gradient(90deg,
    rgba(0,240,255,0.04),
    rgba(255,46,146,0.04),
    rgba(124,58,237,0.04),
    rgba(0,255,157,0.04),
    rgba(0,240,255,0.04));
  background-size: 300% 100%;
  animation: footerFlow 8s linear infinite;
  border-bottom: 1px solid var(--glass-border);
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  color: var(--text-1);
  box-sizing: border-box;
}
.rt-pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: rtPulse 2s ease-in-out infinite;
}
@keyframes rtPulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }
.footer-runtime .rt-label { color: var(--text-2); font-weight: 500; }
.footer-runtime .rt-time {
  font-weight: 700; font-size: 15px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink), var(--neon-purple), var(--neon-green));
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: footerFlow 6s linear infinite;
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
}

/* 主体内容层 - 多列布局 */
.footer-body {
  width: 100%; max-width: 1200px; margin: 0 auto;
  padding: 32px 24px 24px;
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 32px; flex-wrap: wrap; box-sizing: border-box;
}
.footer-brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.footer-brand-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--grad-primary); display: grid; place-items: center;
  color: var(--bg-1); font-weight: 900; font-family: 'Orbitron'; font-size: 22px;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
  flex-shrink: 0;
}
.footer-brand-text { display: flex; flex-direction: column; gap: 2px; }
.footer-brand-text strong { color: var(--text-0); font-size: 15px; font-weight: 700; }
.footer-brand-text span { color: var(--text-3); font-size: 12px; }

/* 多列导航 */
.footer-cols {
  display: flex; gap: 40px; flex-wrap: wrap;
}
.footer-col {
  display: flex; flex-direction: column; gap: 8px; min-width: 100px;
}
.footer-col-title {
  color: var(--text-1); font-size: 13px; font-weight: 700;
  margin: 0 0 4px; letter-spacing: 0.03em;
}
.footer-link {
  color: var(--text-3); font-size: 13px; text-decoration: none;
  display: inline-flex; align-items: center; gap: 5px;
  white-space: nowrap; transition: all 0.2s;
}
.footer-link:hover { color: var(--neon-cyan); transform: translateX(2px); }
.footer-link svg { opacity: 0.7; }
.footer-link:hover svg { opacity: 1; }
.footer-mps-icon { width: 16px; height: 16px; object-fit: contain; }

/* 底部版权 */
.footer-bottom {
  width: 100%; padding: 14px 24px calc(14px + env(safe-area-inset-bottom));
  text-align: center; border-top: 1px solid var(--glass-border);
  box-sizing: border-box;
}
.footer-copyright { color: var(--text-3); font-size: 12px; letter-spacing: 0.04em; }
.footer-copyright-link { color: var(--text-2); text-decoration: none; transition: color .2s; }
.footer-copyright-link:hover { color: var(--neon-cyan); }

@keyframes footerFlow {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

/* 响应式 */
@media (max-width: 768px) {
  .footer-runtime { font-size: 12px; padding: 10px 16px; gap: 8px; }
  .footer-runtime .rt-time { font-size: 13px; }
  .footer-body { flex-direction: column; text-align: center; padding: 24px 16px 16px; gap: 24px; }
  .footer-brand { justify-content: center; }
  .footer-cols { justify-content: center; gap: 28px; }
}
@media (max-width: 480px) {
  .footer-cols { gap: 20px; }
  .footer-col { min-width: 80px; }
}

@media (prefers-reduced-motion: reduce) {
  .footer-runtime, .footer-runtime .rt-time, .footer-glow, .rt-pulse { animation: none; }
}
.badge-dot { position: absolute; top: -6px; right: -6px; background: var(--neon-pink);
  color: var(--text-0); font-size: 10px; padding: 1px 6px; border-radius: 10px; font-weight: 600; }
.alert-error { padding: 14px 20px; margin-bottom: 18px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,46,146,0.4); color: var(--neon-pink);
  background: rgba(255,46,146,0.08); font-size: 14px; }
.avatar-xl { width: 96px; height: 96px; font-size: 36px; }
.mx-auto { margin: 0 auto; }

/* ===== 登录/注册弹窗（液态玻璃增强版） ===== */
.auth-modal {
  width: 100%; max-width: 440px; padding: 36px 32px 28px; border-radius: 20px;
  /* 液态玻璃：多层渐变背景 + 强模糊 + 饱和度提升 */
  background:
    linear-gradient(135deg, rgba(17, 24, 39, 0.88), rgba(26, 34, 56, 0.82)),
    radial-gradient(ellipse at 30% 0%, rgba(0, 240, 255, 0.06), transparent 60%),
    radial-gradient(ellipse at 70% 100%, rgba(255, 46, 146, 0.04), transparent 60%);
  backdrop-filter: blur(32px) saturate(1.8);
  -webkit-backdrop-filter: blur(32px) saturate(1.8);
  border: 1px solid var(--glass-border);
  /* 多层阴影：外阴影 + 内高光 */
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 1px 0 rgba(255, 255, 255, 0.1) inset;
  animation: authSlideUp .45s cubic-bezier(.4,0,.2,1);
  position: relative;
  /* 修复弹窗过大无法显示：限制最大高度 + 内部滚动 */
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  /* 自定义滚动条：科技感细条 + hover 高亮 */
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.3) transparent;
}
/* 弹窗滚动条样式（WebKit 浏览器） */
.auth-modal::-webkit-scrollbar { width: 6px; }
.auth-modal::-webkit-scrollbar-track { background: transparent; margin: 8px 0; }
.auth-modal::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(0, 240, 255, 0.35), rgba(124, 58, 237, 0.35));
  border-radius: 3px;
}
.auth-modal::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(0, 240, 255, 0.6), rgba(124, 58, 237, 0.6));
}
@keyframes authSlideUp { from { opacity: 0; transform: translateY(40px) scale(0.96); } to { opacity: 1; transform: translateY(0) scale(1); } }
/* 旋转光晕层 */
.auth-modal-glow {
  position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background:
    radial-gradient(circle at 30% 20%, rgba(0,240,255,0.1), transparent 40%),
    radial-gradient(circle at 70% 80%, rgba(255,46,146,0.08), transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(124,58,237,0.04), transparent 60%);
  pointer-events: none; animation: authGlow 8s ease-in-out infinite alternate;
}
/* 粒子层（装饰用） */
.auth-modal-particles {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(0,240,255,0.3), transparent),
    radial-gradient(1px 1px at 70% 60%, rgba(255,46,146,0.3), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(124,58,237,0.3), transparent),
    radial-gradient(1px 1px at 85% 20%, rgba(0,255,157,0.3), transparent);
  background-size: 200px 200px;
  opacity: 0.6;
}
@keyframes authGlow { from { transform: rotate(0deg); } to { transform: rotate(15deg); } }
.auth-modal > * { position: relative; z-index: 1; }
.auth-modal .modal-close {
  position: absolute; top: 14px; right: 14px; width: 34px; height: 34px;
  border-radius: 10px; display: grid; place-items: center; color: var(--text-2);
  transition: all .2s; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); z-index: 2;
}
.auth-modal .modal-close:hover { background: rgba(255,46,146,0.15); color: var(--neon-pink); border-color: rgba(255,46,146,0.3); }
.auth-header { text-align: center; margin-bottom: 24px; }
.auth-logo { display: flex; justify-content: center; margin-bottom: 12px; }
.auth-logo-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--grad-primary); display: grid; place-items: center;
  color: var(--bg-1); font-weight: 900; font-family: 'Orbitron'; font-size: 28px;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  animation: authLogoPulse 3s ease-in-out infinite;
}
@keyframes authLogoPulse { 0%, 100% { box-shadow: 0 0 20px rgba(0, 240, 255, 0.4); } 50% { box-shadow: 0 0 32px rgba(0, 240, 255, 0.6); } }
.auth-title { font-size: 22px; font-weight: 700; color: var(--text-0); margin-bottom: 4px; }
.auth-subtitle { font-size: 13px; color: var(--text-3); }

/* 密码匹配提示 */
.pwd-match {
  margin-top: 6px; font-size: 12px; min-height: 16px;
  transition: all .25s;
}
.pwd-match.match-ok { color: var(--neon-green); }
.pwd-match.match-fail { color: var(--neon-pink); }

/* Tab 切换 */
.login-tabs {
  display: flex; gap: 0; padding: 4px; background: rgba(0,0,0,0.35);
  border-radius: 12px; margin-bottom: 24px; position: relative;
  border: 1px solid var(--glass-border);
}
.login-tabs .ltab {
  flex: 1; padding: 10px; border-radius: 8px; font-weight: 600; font-size: 14px;
  color: var(--text-2); transition: color .25s; background: transparent; border: 0; cursor: pointer;
  position: relative; z-index: 1;
}
.login-tabs .ltab.active { color: var(--neon-cyan); }
.ltab-indicator {
  position: absolute; top: 4px; bottom: 4px; border-radius: 8px;
  background: rgba(0,240,255,0.12); border: 1px solid rgba(0,240,255,0.25);
  transition: transform .3s cubic-bezier(.4,0,.2,1), width .3s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
}

/* 输入框带图标 */
.input-wrap { position: relative; display: flex; align-items: center; }
.input-wrap .input { padding-left: 40px; width: 100%; }
.input-icon {
  position: absolute; left: 12px; color: var(--text-3); pointer-events: none;
  transition: color .25s;
}
.input-wrap:focus-within .input-icon { color: var(--neon-cyan); }
.auth-submit { margin-top: 4px; letter-spacing: 0.05em; }

/* 分隔线 */
.auth-divider {
  display: flex; align-items: center; gap: 12px; margin: 20px 0 16px;
  color: var(--text-3); font-size: 12px;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}
.auth-divider span { white-space: nowrap; }

/* OAuth 按钮优化 */
.auth-modal .oauth-row { gap: 10px; }
.auth-modal .oauth-btn {
  flex: 1; padding: 12px; border-radius: 12px;
  border: 1px solid var(--glass-border); background: rgba(255,255,255,0.03);
  display: grid; place-items: center; transition: all .25s; color: var(--text-2);
}
.auth-modal .oauth-btn:hover { transform: translateY(-2px); border-color: var(--neon-cyan); color: var(--neon-cyan); background: rgba(0,240,255,0.05); }
.auth-modal .oauth-btn svg { display: block; }

/* ===== 公告弹窗（炫彩动态） ===== */
.announcement-modal {
  width: 100%; max-width: 500px; padding: 36px 32px 28px; border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(17, 24, 39, 0.92), rgba(26, 34, 56, 0.86)),
    radial-gradient(ellipse at 50% 0%, rgba(255, 46, 146, 0.1), transparent 70%);
  backdrop-filter: blur(32px) saturate(1.8);
  -webkit-backdrop-filter: blur(32px) saturate(1.8);
  border: 1px solid var(--glass-border);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05) inset, 0 1px 0 rgba(255, 255, 255, 0.1) inset;
  animation: annPop .5s cubic-bezier(.34,1.56,.64,1);
  position: relative;
  overflow: hidden;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  overflow-x: hidden;
}
.announcement-modal::-webkit-scrollbar { width: 6px; }
.announcement-modal::-webkit-scrollbar-track { background: transparent; }
.announcement-modal::-webkit-scrollbar-thumb { background: rgba(0, 240, 255, 0.3); border-radius: 3px; }
@keyframes annPop { from { opacity: 0; transform: scale(0.85) translateY(30px); } to { opacity: 1; transform: scale(1) translateY(0); } }

/* 流动光晕层：根据公告类型动态变色 */
.announcement-glow {
  --ann-color: #00f0ff;
  position: absolute; top: -60%; left: -60%; width: 220%; height: 220%;
  background:
    radial-gradient(circle at 25% 25%, color-mix(in srgb, var(--ann-color) 18%, transparent), transparent 45%),
    radial-gradient(circle at 75% 75%, color-mix(in srgb, var(--ann-color) 10%, transparent), transparent 50%),
    conic-gradient(from 0deg at 50% 50%, transparent, color-mix(in srgb, var(--ann-color) 8%, transparent), transparent, color-mix(in srgb, var(--ann-color) 6%, transparent), transparent);
  pointer-events: none;
  animation: annGlowSpin 12s linear infinite;
}
@keyframes annGlowSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* 粒子点缀层 */
.announcement-particles {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(0,240,255,0.6), transparent),
    radial-gradient(2px 2px at 80% 20%, rgba(255,46,146,0.5), transparent),
    radial-gradient(1px 1px at 30% 80%, rgba(124,58,237,0.5), transparent),
    radial-gradient(1.5px 1.5px at 70% 50%, rgba(0,255,157,0.4), transparent);
  background-size: 100% 100%;
  animation: annDrift 8s ease-in-out infinite alternate;
}
@keyframes annDrift { from { transform: translateY(0); opacity: 0.7; } to { transform: translateY(-8px); opacity: 1; } }

.announcement-modal > * { position: relative; z-index: 1; }
.announcement-modal .modal-close { z-index: 2; }

.announcement-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px;
}
.announcement-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(0,240,255,0.15), rgba(255,46,146,0.1));
  border: 1px solid var(--glass-border);
  display: grid; place-items: center; font-size: 26px;
  animation: annBounce 2s ease-in-out infinite;
}
@keyframes annBounce { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-4px) rotate(-3deg); } }
.announcement-type-badge {
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  padding: 4px 12px; border-radius: 20px;
  border: 1px solid var(--neon-cyan); color: var(--neon-cyan);
  background: rgba(0,240,255,0.05); text-transform: uppercase;
}

.announcement-title {
  font-size: 22px; font-weight: 700; margin: 0 0 14px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink), var(--neon-cyan));
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: annTitleShimmer 4s linear infinite;
  line-height: 1.4;
}
@keyframes annTitleShimmer { from { background-position: 0% center; } to { background-position: 200% center; } }

.announcement-content {
  color: var(--text-1); font-size: 15px; line-height: 1.75;
  padding: 14px 16px; border-radius: 12px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border);
  margin-bottom: 22px; max-height: 320px; overflow-y: auto;
}
.announcement-content code { background: rgba(0,240,255,0.1); padding: 1px 6px; border-radius: 4px; font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--neon-cyan); }
.announcement-content pre { background: rgba(0,0,0,0.3); padding: 12px; border-radius: 8px; overflow-x: auto; margin: 8px 0; }
.announcement-content pre code { background: transparent; padding: 0; }
.announcement-content a { color: var(--neon-cyan); text-decoration: underline; }

.announcement-footer {
  display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap;
}
.announcement-dismiss-btn { font-size: 13px; }

/* 小屏适配 */
@media (max-width: 480px) {
  .announcement-modal { padding: 28px 18px 20px; border-radius: 18px; }
  .announcement-title { font-size: 18px; }
  .announcement-icon { width: 44px; height: 44px; font-size: 22px; }
  .announcement-content { font-size: 14px; padding: 12px; max-height: 260px; }
  .announcement-footer { flex-direction: column-reverse; }
  .announcement-footer .btn { width: 100%; }
}
.field-error { display: flex; align-items: center; gap: 6px; margin-top: 6px;
  color: var(--neon-pink); font-size: 12px; }
.input:invalid:not(:placeholder-shown) { border-color: var(--neon-pink);
  box-shadow: 0 0 0 3px rgba(255,46,146,0.15); }
.admin-header h1 { font-size: 24px; }
.admin-header .sub { color: var(--text-3); font-size: 13px; margin-top: 2px; }
.admin-nav a.danger { color: var(--neon-pink); margin-top: 18px; }
.admin-nav a.danger:hover { background: rgba(255,46,146,0.08); border-left-color: var(--neon-pink); }

/* 空状态强化（玻璃质感） */
.empty { text-align: center; padding: 60px 20px; color: var(--text-3);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius); }

/* ---------- 移动端 ---------- */
.mobile-tabbar { display: none; }
.menu-toggle { display: none; }

/* ===== iPad 中等断点（769-1024px）===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  /* 后台双列网格降级 */
  .grid-2-1 { grid-template-columns: 1fr !important; }
  /* profile/upload/详情页布局降级为单列 */
  .profile-grid, .detail-grid, .upload-grid { grid-template-columns: 1fr; }
  .profile-grid > .glass { position: static !important; }
  .upload-grid > .glass:last-child { position: static !important; top: auto !important; }
  /* settings 卡片自适应 */
  .admin-settings-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)) !important; }
}

/* ===== 触屏设备：禁用 hover 残留 ===== */
@media (hover: none) and (pointer: coarse) {
  .btn:hover, .tutorial-card:hover, .oauth-btn:hover { transform: none !important; }
  .tutorial-card:hover { box-shadow: var(--shadow-card); border-color: var(--glass-border); }
  .map-card .map-cover:hover img,
  .agent-card .agent-cover:hover img { transform: none; }
  .star-input:not(.disabled) .star:hover { transform: none; color: rgba(255,255,255,0.15); }
  .btn-primary:hover, .btn-energy:hover { box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3); }
}

/* ===== 安全区域全覆盖（刘海屏/底部安全区） ===== */
.navbar { padding-top: env(safe-area-inset-top); }
.toast-wrap { top: calc(88px + env(safe-area-inset-top)); }
.modal-overlay { padding: max(20px, env(safe-area-inset-top)) 20px env(safe-area-inset-bottom); }
.admin-sidebar { top: env(safe-area-inset-top); height: calc(100vh - env(safe-area-inset-top)); }

/* ===== 768px 移动端 ===== */
@media (max-width: 768px) {
  :root { --nav-h: 56px; }
  /* navbar 抽屉化 */
  .navbar-inner { gap: 10px; padding: 0 14px; }
  .brand-text { font-size: 16px; }
  .brand-icon { width: 32px; height: 32px; border-radius: 9px; }
  .brand-icon span { font-size: 18px; }
  .nav-links { display: none; }
  .nav-links.show {
    display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(10, 14, 26, 0.97); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    padding: 12px; gap: 2px; border-bottom: 1px solid var(--border);
    max-height: calc(100vh - var(--nav-h)); overflow-y: auto; z-index: 99;
    animation: navDrawerSlide .3s ease;
  }
  @keyframes navDrawerSlide { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
  .nav-links.show a { padding: 12px 16px; font-size: 15px; }
  .nav-links.show a.active::after { display: none; }
  /* 移动端：保留头像和认证按钮，图标按钮缩小 */
  .nav-icon-btn { width: 34px; height: 34px; }
  .nav-actions .avatar-sm { width: 32px; height: 32px; font-size: 13px; }
  .nav-auth-btn span { display: none; }
  .nav-auth-btn svg { margin: 0; }
  .menu-toggle { display: flex; }
  .container { padding: 0 16px; }
  .hero { padding: 48px 16px 40px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-auto { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 16px; }
  .section { padding: 40px 0; }
  /* 筛选栏纵向堆叠，避免嵌套滚动 */
  .filter-bar { padding: 14px; flex-direction: column; align-items: stretch; }
  .filter-bar .filter-tabs { width: auto; overflow-x: auto; }
  .filter-bar .select, .filter-bar .input { min-width: 0; width: 100%; }
  .modal { padding: 24px 20px; }
  /* 弹窗在小屏幕下减小 padding */
  .auth-modal { padding: 28px 20px 24px; max-height: calc(100vh - 32px); }
  .auth-modal .modal-close { width: 40px; height: 40px; }
  .oauth-row { flex-wrap: wrap; }
  .oauth-btn { min-width: calc(50% - 6px); }
  /* 触摸目标 ≥44px */
  .btn-sm { padding: 10px 16px; min-height: 40px; }
  .pagination a, .pagination span { min-width: 44px; height: 44px; }
  .mobile-tabbar a { padding: 10px 4px; min-height: 48px; }
  .modal-close { width: 44px; height: 44px; }
  /* 底部 Tab */
  .mobile-tabbar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
    background: rgba(10, 14, 26, 0.92); backdrop-filter: blur(20px);
    border-top: 1px solid var(--border); padding: 8px 0 env(safe-area-inset-bottom);
  }
  .mobile-tabbar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
    padding: 10px 4px; color: var(--text-3); font-size: 11px; font-weight: 500;
  }
  .mobile-tabbar a.active { color: var(--neon-cyan); }
  .mobile-tabbar a .ico { font-size: 20px; }
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
  /* 评论嵌套缩进减小 */
  .comment-body { padding-left: 0; }
  .comment-children { padding-left: 16px; margin-left: 8px; border-left: 2px solid var(--glass-border); }
  /* 详情页 article padding 减小 */
  .tutorial-article { padding: 20px 16px !important; }
  /* 后台侧栏抽屉化 */
  .admin-sidebar {
    position: fixed; left: -260px; width: 240px; height: 100vh;
    transition: left .3s; z-index: 200;
    padding-top: env(safe-area-inset-top);
  }
  .admin-sidebar.open { left: 0; }
  .admin-sidebar .brand { font-size: 18px; padding: 0 20px 24px; }
  .admin-sidebar .brand-icon { margin: 0; }
  .admin-nav a { padding: 14px 20px; font-size: 14px; justify-content: flex-start; gap: 12px; }
  .admin-nav a .ico { font-size: 20px; }
  .admin-nav a span:not(.ico) {
    position: static; width: auto; height: auto; padding: 0; margin: 0;
    overflow: visible; clip: auto; white-space: normal; border: 0;
  }
  .admin-main { padding: 16px; max-width: 100%; }
  .admin-menu-btn { display: inline-flex; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  /* 后台表格卡片化 */
  .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .table-card thead { display: none; }
  .table-card, .table-card tbody, .table-card tr, .table-card td { display: block; width: 100%; }
  .table-card tr { margin-bottom: 12px; border: 1px solid var(--glass-border); border-radius: 10px; padding: 8px; }
  .table-card td { display: flex; justify-content: space-between; padding: 8px 12px; border-bottom: 0; gap: 12px; }
  .table-card td::before { content: attr(data-label); color: var(--text-3); font-size: 12px; font-weight: 600; }
  .table-card td:last-child { border-bottom: 0; }
  /* trend-row 单列 */
  .trend-row { grid-template-columns: 1fr !important; gap: 6px; }
  .trend-bars { height: 60px; }
  /* 章节标题流式 */
  .section-title h2 { font-size: clamp(20px, 2.5vw, 28px); }
}

/* ===== 480px 小屏 ===== */
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .kpi-grid { grid-template-columns: 1fr; }
  .hero .hero-actions { flex-direction: column; }
  .hero .hero-actions .btn { width: 100%; }
  .modal { padding: 20px 14px; border-radius: 16px; }
  .modal h2 { font-size: 20px; }
  /* 弹窗在小屏进一步收紧 */
  .auth-modal { padding: 22px 16px 18px; border-radius: 16px; }
  .auth-title { font-size: 19px; }
  .auth-subtitle { font-size: 12px; }
  .auth-logo-icon { width: 44px; height: 44px; font-size: 24px; }
  /* 验证码图片自适应 */
  .captcha-row img { width: 100px; height: 42px; }
}

/* ===== OAuth 按钮品牌色 ===== */
.oauth-btn:hover { color: var(--text-0); }
.oauth-btn[title="GitHub"]:hover { border-color: #6e5494; color: #6e5494; }
.oauth-btn[title="Google"]:hover { border-color: #ea4335; color: #ea4335; }
.oauth-btn.oauth-qq:hover { border-color: #12B7F5; color: #12B7F5; }
.oauth-btn[title="微信"]:hover { border-color: #07c160; color: #07c160; }

/* 加载动画 */
.skeleton { background: linear-gradient(90deg, rgba(255,255,255,0.04), rgba(255,255,255,0.08), rgba(255,255,255,0.04)); background-size: 200% 100%; animation: skeleton 1.4s infinite; }
@keyframes skeleton { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* 验证码行（前台弹窗 + 后台登录通用） */
.captcha-row { display: flex; gap: 10px; align-items: stretch; }
.captcha-row .input { flex: 1; min-width: 0; }
.captcha-row .captcha-img,
.captcha-row img { width: 150px; height: 46px; border-radius: 10px; border: 1px solid var(--glass-border); cursor: pointer; background: var(--bg-0); flex-shrink: 0; }

/* 角色定位筛选栏（英雄库 + 教程库通用） */
.role-filter-bar {
  display: flex;
  gap: 10px;
  margin: 14px 0 18px;
  padding: 4px 2px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  flex-wrap: nowrap;
}
.role-filter-bar::-webkit-scrollbar { height: 5px; }
.role-filter-bar::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 3px; }

.role-filter-bar .role-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* logo 容器：固定尺寸，无 logo 时显示占位圆点 */
.role-filter-bar .role-tag .role-logo {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
}
.role-filter-bar .role-tag .role-placeholder {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
}

.role-filter-bar .role-tag:hover {
  border-color: var(--neon-cyan);
  color: var(--text-1);
  background: rgba(0, 240, 255, 0.06);
  transform: translateY(-1px);
}

.role-filter-bar .role-tag.active {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
  background: rgba(255, 46, 146, 0.1);
  box-shadow: 0 0 16px rgba(255, 46, 146, 0.3), inset 0 0 12px rgba(255, 46, 146, 0.05);
}

@media (max-width: 600px) {
  .role-filter-bar { gap: 8px; }
  .role-filter-bar .role-tag { padding: 8px 14px 8px 10px; font-size: 13px; gap: 6px; }
  .role-filter-bar .role-tag .role-logo,
  .role-filter-bar .role-tag .role-placeholder { width: 18px; height: 18px; }
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: rgba(0,240,255,0.2); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,240,255,0.4); }

/* PDF 查看器 */
.pdf-viewer { width: 100%; height: 75vh; border: 0; border-radius: 12px; background: var(--bg-0); }

/* ===== 无障碍：尊重用户减少动画偏好 ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    body::after { animation: none !important; }
    #particles-canvas { display: none !important; }
}

/* ============================================================
   组队房间（party）
   ============================================================ */
.party-room { max-width: 1080px; }

/* 加载态 */
.party-loading { padding: 56px 24px; text-align: center; }
.party-loading-text { color: var(--text-2); margin-top: 18px; font-size: 15px; }
.party-loading-code { font-family: 'JetBrains Mono', monospace; color: var(--neon-cyan); margin-left: 6px; }
.party-spinner {
  width: 44px; height: 44px; margin: 0 auto; border-radius: 50%;
  border: 3px solid rgba(0,240,255,0.15); border-top-color: var(--neon-cyan);
  animation: party-spin 0.9s linear infinite;
}
@keyframes party-spin { to { transform: rotate(360deg); } }

/* 顶部头部 */
.party-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 20px; flex-wrap: wrap; padding: 20px 24px; margin-bottom: 18px;
}
.party-header-left { flex: 1; min-width: 260px; display: flex; flex-direction: column; gap: 10px; }
.party-header-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.party-code-row, .party-invite-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.party-code-label, .party-invite-label { color: var(--text-3); font-size: 12px; min-width: 56px; }
.party-code {
  font-family: 'JetBrains Mono', monospace; font-size: 28px; font-weight: 700;
  letter-spacing: 3px; color: var(--neon-cyan); text-shadow: 0 0 12px rgba(0,240,255,0.4);
}
.party-invite-input { flex: 1; min-width: 200px; font-size: 13px; opacity: 0.85; }
.party-meta { display: flex; flex-wrap: wrap; gap: 8px; }

/* 计时器（霓虹流光） */
.party-timer {
  font-family: 'Orbitron', 'JetBrains Mono', monospace; font-size: 30px; font-weight: 900;
  letter-spacing: 2px; color: var(--neon-cyan);
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple), var(--neon-pink), var(--neon-cyan));
  background-size: 300% 100%; -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; animation: party-flow 4s linear infinite;
  text-shadow: 0 0 24px rgba(0,240,255,0.25);
}
@keyframes party-flow { to { background-position: 300% 0; } }

.side-indicator {
  display: inline-flex; align-items: center; padding: 3px 12px; border-radius: 999px;
  font-size: 13px; font-weight: 700; border: 1px solid;
}

/* 主体 */
.party-body { display: flex; flex-direction: column; gap: 18px; }
.party-section-title { font-size: 16px; font-weight: 700; color: var(--text-1); margin: 4px 2px 10px; }

/* 成员槽位 */
.party-members {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
}
.member-slot {
  padding: 16px 10px; border-radius: 14px; text-align: center;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px); transition: all .25s;
}
.member-slot.member-filled { box-shadow: 0 4px 16px rgba(0,0,0,0.2); }
.member-slot.member-me { border-color: var(--neon-cyan); box-shadow: 0 0 0 1px var(--neon-cyan), 0 4px 20px rgba(0,240,255,0.2); }
.member-slot.member-empty {
  border: 2px dashed rgba(255,255,255,0.12); background: rgba(255,255,255,0.02);
}
.member-avatar {
  width: 52px; height: 52px; border-radius: 50%; margin: 0 auto 8px; overflow: hidden;
  background: var(--grad-primary); display: grid; place-items: center;
  font-weight: 700; color: var(--bg-1);
}
.member-avatar img { width: 100%; height: 100%; object-fit: cover; }
.member-avatar-fallback { font-size: 20px; }
.member-avatar-empty {
  background: transparent; border: 2px dashed rgba(255,255,255,0.2); color: var(--text-3);
  font-size: 22px; font-weight: 400;
}
.member-name { font-size: 13px; color: var(--text-1); font-weight: 600; }
.member-empty-name { color: var(--text-3); font-weight: 400; }
.member-host { font-size: 10px; background: rgba(255,215,0,0.15); color: var(--neon-yellow); padding: 1px 6px; border-radius: 999px; margin-left: 2px; }
.member-me-tag { font-size: 10px; background: rgba(0,240,255,0.15); color: var(--neon-cyan); padding: 1px 6px; border-radius: 999px; margin-left: 2px; }
.member-agent { margin-top: 6px; }
.member-unpicked { color: var(--text-3); font-size: 12px; }

/* 角色选择网格 */
.agent-grid-wrap { display: flex; flex-direction: column; gap: 18px; }
.agent-role-group { }
.agent-role-title {
  font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 10px;
  padding-left: 10px; border-left: 3px solid var(--neon-purple);
}
.agent-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 12px;
}
.agent-card {
  position: relative; padding: 10px 6px 8px; border-radius: 12px; cursor: pointer;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px); transition: all .25s; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.agent-card:hover { transform: translateY(-3px); border-color: var(--neon-cyan); }
.agent-card.agent-selected {
  border-color: var(--neon-green);
  box-shadow: 0 0 0 1px var(--neon-green), 0 6px 24px rgba(0,255,157,0.25);
}
.agent-card-img {
  width: 56px; height: 56px; border-radius: 50%; object-fit: cover;
  background: rgba(0,0,0,0.3); border: 2px solid var(--glass-border);
}
.agent-card-placeholder {
  display: grid; place-items: center; font-size: 22px; font-weight: 700; color: var(--neon-cyan);
}
.agent-card.agent-selected .agent-card-img { border-color: var(--neon-green); }
.agent-card-name { font-size: 12px; color: var(--text-1); font-weight: 600; }
.agent-card-check {
  position: absolute; top: 4px; right: 4px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--neon-green); color: var(--bg-1); font-size: 12px; font-weight: 900;
  display: grid; place-items: center;
}

/* Tab */
.party-tabs { display: inline-flex; gap: 4px; padding: 4px; background: rgba(0,0,0,0.3); border-radius: 12px; align-self: flex-start; }
.party-tab {
  padding: 8px 20px; border-radius: 8px; font-size: 14px; font-weight: 600;
  color: var(--text-2); background: transparent; border: 0; cursor: pointer; transition: all .2s;
}
.party-tab.active { background: var(--grad-primary); color: var(--bg-1); }
.party-tab:not(.active):hover { color: var(--neon-cyan); }

/* 队友点位 */
.party-teammate-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.party-teammate-owner { color: var(--neon-green); font-weight: 600; font-size: 14px; }
.party-teammate-empty { padding: 24px; text-align: center; color: var(--text-3); }
.teammate-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px;
}
.teammate-card {
  display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px;
  cursor: pointer; text-align: left; border: 1px solid var(--glass-border); transition: all .2s;
}
.teammate-card:hover { transform: translateY(-2px); border-color: var(--neon-purple); }
.teammate-agent-img {
  width: 44px; height: 44px; border-radius: 50%; object-fit: cover; flex-shrink: 0;
  background: rgba(0,0,0,0.3); border: 2px solid var(--glass-border);
}
.teammate-agent-placeholder { display: grid; place-items: center; color: var(--neon-purple); font-weight: 700; }
.teammate-info { min-width: 0; }
.teammate-nick { font-size: 14px; font-weight: 600; color: var(--text-1); }
.teammate-agent { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* 操作栏 */
.party-actions {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center;
  padding: 18px 24px; margin-top: 6px;
}
.party-hint { color: var(--text-2); font-size: 14px; padding: 8px 4px; }

/* 已结束 */
.party-ended-banner { padding: 48px 24px; text-align: center; }
.party-ended-ico { font-size: 48px; }
.party-ended-text { font-size: 24px; font-weight: 800; color: var(--neon-pink); margin-top: 10px; }
.party-ended-sub { color: var(--text-3); font-size: 13px; margin-top: 6px; }

/* 二次确认弹窗按钮组 */
.confirm-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.confirm-actions .btn { flex: 1; min-width: 110px; }
.confirm-hint { color: var(--text-3); font-size: 12px; margin-top: 14px; line-height: 1.6; }

/* 攻防选择弹窗 */
.side-pick-row { display: flex; gap: 14px; margin-top: 8px; }
.side-pick-btn {
  flex: 1; padding: 28px 16px; border-radius: 14px; cursor: pointer;
  border: 2px solid var(--glass-border); background: var(--glass-bg);
  display: flex; flex-direction: column; align-items: center; gap: 4px; transition: all .25s;
}
.side-pick-btn:hover { transform: translateY(-3px); }
.side-pick-btn.side-attack:hover { border-color: var(--neon-pink); box-shadow: 0 8px 28px rgba(255,46,146,0.3); }
.side-pick-btn.side-defense:hover { border-color: var(--neon-cyan); box-shadow: 0 8px 28px rgba(0,240,255,0.3); }
.side-pick-label { font-size: 22px; font-weight: 900; }
.side-pick-btn.side-attack .side-pick-label { color: var(--neon-pink); }
.side-pick-btn.side-defense .side-pick-label { color: var(--neon-cyan); }
.side-pick-sub { font-size: 12px; color: var(--text-3); }

/* party 弹窗遮罩微调 */
.party-modal { animation: slideUp .4s cubic-bezier(.4,0,.2,1); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .party-members { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .party-header { flex-direction: column; }
  .party-header-right { align-items: flex-start; width: 100%; }
  .party-code { font-size: 22px; }
  .party-timer { font-size: 24px; }
  .party-members { grid-template-columns: repeat(2, 1fr); }
  .agent-grid { grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
  .agent-card-img { width: 48px; height: 48px; }
  .teammate-grid { grid-template-columns: 1fr; }
  .side-pick-row { flex-direction: column; }
  .confirm-actions { flex-direction: column; }
  .confirm-actions .btn { width: 100%; }
}
@media (max-width: 480px) {
  .party-members { grid-template-columns: 1fr 1fr; }
  .agent-grid { grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); }
}

/* =====================================================================
   VALORANT 风格主题切换 + Logo + 风格强化
   ===================================================================== */

/* 主题切换按钮 */
.theme-toggle {
    position: relative;
    width: 38px; height: 38px;
    border-radius: 10px;
    display: grid; place-items: center;
    color: var(--text-1);
    transition: all .3s;
}
.theme-toggle:hover {
    color: var(--neon-cyan);
    background: rgba(0,240,255,0.08);
    box-shadow: 0 0 16px rgba(0,240,255,0.3);
}
.theme-toggle .theme-icon-day,
.theme-toggle .theme-icon-night { display: none; }
[data-theme="night"] .theme-toggle .theme-icon-night { display: block; }
[data-theme="day"] .theme-toggle .theme-icon-day { display: block; }

/* 品牌 Logo */
.brand { gap: 10px; }
.brand-logo {
    height: 36px; width: auto;
    object-fit: contain;
    border-radius: 8px;
}
.brand-logo-day { display: none; }
.brand-logo-night { display: block; }
[data-theme="day"] .brand-logo-day { display: block; }
[data-theme="day"] .brand-logo-night { display: none; }
[data-theme="day"] .brand-text { color: var(--text-0); }
[data-theme="night"] .brand-text { color: var(--text-0); }

/* VALORANT 菱形装饰（导航栏左侧光效） */
.navbar-glow::before {
    content: '';
    position: absolute;
    top: 50%; left: -40px;
    width: 80px; height: 4px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    transform: translateY(-50%) skewX(-30deg);
    opacity: .6;
    animation: valScan 4s linear infinite;
}
@keyframes valScan {
    0% { transform: translateY(-50%) translateX(-100%) skewX(-30deg); }
    100% { transform: translateY(-50%) translateX(100vw) skewX(-30deg); }
}

/* VALORANT 锐角切角元素 */
.btn-primary, .btn-energy {
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.btn-ghost {
    clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

/* VALORANT 卡片悬浮锐角光效 */
.glass {
    position: relative;
}
.glass::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 24px; height: 24px;
    border-top: 2px solid var(--neon-cyan);
    border-left: 2px solid var(--neon-cyan);
    border-top-left-radius: var(--radius);
    opacity: 0;
    transition: opacity .3s;
    pointer-events: none;
}
.glass::after {
    content: '';
    position: absolute;
    bottom: 0; right: 0;
    width: 24px; height: 24px;
    border-bottom: 2px solid var(--neon-pink);
    border-right: 2px solid var(--neon-pink);
    border-bottom-right-radius: var(--radius);
    opacity: 0;
    transition: opacity .3s;
    pointer-events: none;
}
.glass:hover::before, .glass:hover::after { opacity: 0.8; }

/* VALORANT 标题字体强化（科技感） */
.hero-title, .section-title h2, .brand-text {
    font-family: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
    letter-spacing: 1px;
}
.text-gradient {
    background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-pink) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* 公告附件下载按钮 */
.announcement-attachment-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: 10px;
    font-size: 13px; color: var(--neon-cyan);
    background: rgba(0,240,255,0.06);
    border: 1px solid rgba(0,240,255,0.3);
    text-decoration: none;
    transition: all .25s;
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.announcement-attachment-btn:hover {
    background: rgba(0,240,255,0.12);
    box-shadow: 0 0 16px rgba(0,240,255,0.3);
    color: var(--neon-cyan);
}

/* 白天主题特定调整 */
[data-theme="day"] .navbar {
    background: rgba(241, 245, 249, 0.85);
    border-bottom-color: rgba(15, 23, 42, 0.08);
}
[data-theme="day"] .modal,
[data-theme="day"] .auth-modal {
    background: rgba(255, 255, 255, 0.85);
    color: var(--text-0);
}
[data-theme="day"] .input,
[data-theme="day"] .textarea,
[data-theme="day"] .select {
    background: rgba(255, 255, 255, 0.7);
    color: var(--text-0);
    border-color: rgba(15, 23, 42, 0.12);
}
[data-theme="day"] .input::placeholder,
[data-theme="day"] .textarea::placeholder { color: var(--text-3); }
[data-theme="day"] .btn-ghost {
    background: rgba(15, 23, 42, 0.04);
    color: var(--text-1);
}
[data-theme="day"] .footer-mps-icon { background: transparent; }
[data-theme="day"] #particles-canvas { opacity: 0.3; }
/* 白天主题：移动端导航抽屉与底部 Tab 适配 */
[data-theme="day"] .nav-links.show {
  background: rgba(241, 245, 249, 0.97);
  border-bottom-color: rgba(15, 23, 42, 0.08);
}
[data-theme="day"] .mobile-tabbar {
  background: rgba(241, 245, 249, 0.92);
  border-top-color: rgba(15, 23, 42, 0.08);
}

/* 尊重减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .party-spinner { animation: none; }
  .party-timer { animation: none; -webkit-text-fill-color: var(--neon-cyan); }
}

/* =====================================================================
   白天主题增强：页脚透明化 + 公告弹窗适配（确保任何主题下显示正常）
   ===================================================================== */
[data-theme="day"] .site-footer {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(241, 245, 249, 0.45)),
    radial-gradient(ellipse at 20% 0%, rgba(8, 145, 178, 0.05), transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(219, 39, 119, 0.04), transparent 50%);
}
[data-theme="day"] .footer-runtime {
  background: linear-gradient(90deg,
    rgba(8,145,178,0.05), rgba(219,39,119,0.04), rgba(109,40,217,0.04), rgba(8,145,178,0.05));
}
[data-theme="day"] .footer-bottom { border-top-color: rgba(15, 23, 42, 0.08); }
[data-theme="day"] .footer-glow { opacity: 0.35; }

/* 白天主题公告弹窗：浅色背景，文字可读 */
[data-theme="day"] .announcement-modal {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(248, 250, 252, 0.86)),
    radial-gradient(ellipse at 50% 0%, rgba(219, 39, 119, 0.08), transparent 70%);
  color: var(--text-0);
}
[data-theme="day"] .announcement-content {
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(15, 23, 42, 0.1);
}
[data-theme="day"] .announcement-icon {
  background: linear-gradient(135deg, rgba(8,145,178,0.15), rgba(219,39,119,0.1));
  border-color: rgba(15, 23, 42, 0.1);
}

/* =====================================================================
   性能优化：GPU 加速 + 长列表按需渲染
   ===================================================================== */
.navbar, .glass, .tutorial-card, .btn, .modal, .toast, .mobile-tabbar {
  transform: translateZ(0);
}
/* 长列表内容按需渲染，减少首屏绘制开销 */
.tutorial-grid, .tutorial-list, .leaderboard-list, .comment-list {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

/* =====================================================================
   移动端性能优化：降低模糊度（backdrop-filter 是性能大头）
   ===================================================================== */
@media (max-width: 768px) {
  .glass { backdrop-filter: blur(12px) saturate(1.2); -webkit-backdrop-filter: blur(12px) saturate(1.2); }
  .navbar { backdrop-filter: blur(16px) saturate(1.3); -webkit-backdrop-filter: blur(16px) saturate(1.3); }
  .site-footer { backdrop-filter: blur(16px) saturate(1.3); -webkit-backdrop-filter: blur(16px) saturate(1.3); }
  .modal-overlay { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
}

/* =====================================================================
   平板端响应式增强（769-1024px）
   ===================================================================== */
@media (min-width: 769px) and (max-width: 1024px) {
  .navbar-inner { padding: 0 20px; gap: 18px; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 7px 10px; font-size: 13px; }
  .container, .section.container { padding-left: 20px; padding-right: 20px; }
  .hero { padding: 56px 20px 44px; }
  .footer-body { padding: 28px 20px 20px; gap: 24px; }
}

/* =====================================================================
   手机端响应式增强（<=480px）：更紧凑的间距与排版
   ===================================================================== */
@media (max-width: 480px) {
  .container, .section.container { padding-left: 12px; padding-right: 12px; }
  .hero { padding: 36px 12px 28px; }
  .hero-title { font-size: clamp(24px, 7vw, 32px); }
  .section { padding: 32px 0; }
  .section-title h2 { font-size: clamp(18px, 5vw, 24px); }
  .tutorial-card { padding: 14px; }
  .tutorial-article { padding: 16px 12px !important; }
  .glass { border-radius: 14px; }
  .stat-card { padding: 14px; }
  .stat-card .num { font-size: 24px; }
  .btn { padding: 9px 18px; font-size: 13px; }
  .footer-body { padding: 20px 14px 14px; gap: 18px; }
  .footer-cols { gap: 18px; }
  .footer-col { min-width: 70px; }
  .footer-link { font-size: 12px; }
  .footer-runtime { font-size: 11px; padding: 8px 12px; }
  .footer-runtime .rt-time { font-size: 12px; }
  /* 公告弹窗小屏紧凑 */
  .announcement-modal { padding: 22px 16px 18px; border-radius: 18px; }
  .announcement-title { font-size: 17px; }
  .announcement-content { font-size: 13px; padding: 12px; max-height: 50vh; }
  .announcement-footer { flex-direction: column-reverse; }
  .announcement-footer .btn { width: 100%; }
}

/* =====================================================================
   超小屏（<=360px）最后兜底
   ===================================================================== */
@media (max-width: 360px) {
  .navbar-inner { padding: 0 10px; gap: 8px; }
  .brand-text { font-size: 14px; }
  .brand-icon { width: 30px; height: 30px; }
  .hero-title { font-size: 22px; }
  .footer-cols { gap: 14px; }
  .footer-col { min-width: 60px; }
}