/* ================================================================
   news.css — F.A.S.T. 管理后台样式
   与主站风格一致: 切伦科夫蓝、科幻字体
   ================================================================ */

:root {
  --cg: #00F0FF;
  --cc: #0099FF;
  --cd: #0044AA;
  --cm: #E8F0F8;
  --cv: #00050B;
  --cdark: #001829;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --font-mono: 'Space Grotesk', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--cv);
  color: var(--cm);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
}

.admin-bg-gradient {
  position: fixed; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 50% 50%, #001a33 0%, #000810 60%, #00050B 100%);
}

.admin-bg-particles {
  position: fixed; inset: 0; z-index: 1;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(0,240,255,0.3), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(0,153,255,0.4), transparent),
    radial-gradient(1px 1px at 80% 20%, rgba(0,240,255,0.2), transparent),
    radial-gradient(2px 2px at 40% 80%, rgba(0,153,255,0.3), transparent),
    radial-gradient(1px 1px at 90% 50%, rgba(0,240,255,0.25), transparent),
    radial-gradient(1px 1px at 15% 60%, rgba(0,153,255,0.2), transparent),
    radial-gradient(2px 2px at 70% 40%, rgba(0,240,255,0.15), transparent);
  background-size: 100% 100%;
  animation: particleDrift 30s linear infinite;
  pointer-events: none;
}

@keyframes particleDrift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-50px, -30px); }
}

.admin-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 30px;
  background: linear-gradient(to bottom, rgba(0,8,16,0.8), transparent);
  backdrop-filter: blur(4px);
}

.admin-logo { display: flex; align-items: center; gap: 8px; }
.admin-logo svg { filter: drop-shadow(0 0 4px var(--cg)); animation: logoSpin 20s linear infinite; }
@keyframes logoSpin { to { transform: rotate(360deg); } }
.admin-logo-text { font-family: var(--font-display); font-size: 14px; font-weight: 700; letter-spacing: 2px; color: var(--cg); }

.admin-back-btn {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px;
  color: var(--cg); text-decoration: none;
  padding: 6px 16px; border: 1px solid rgba(0,240,255,0.2); border-radius: 2px;
  transition: all 0.3s;
}
.admin-back-btn:hover { background: rgba(0,240,255,0.1); border-color: rgba(0,240,255,0.5); }

/* 登录界面 */
.login-panel {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}

.login-content {
  text-align: center;
  background: rgba(0, 10, 25, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 8px;
  padding: 50px 40px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 60px rgba(0, 100, 200, 0.1);
  max-width: 400px; width: 100%;
}

.login-triangle { filter: drop-shadow(0 0 15px var(--cg)); animation: triFloat 4s ease-in-out infinite; }
@keyframes triFloat { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-8px);} }

.login-title {
  font-family: var(--font-display); font-size: 24px; font-weight: 900; letter-spacing: 6px;
  color: var(--cm); margin: 20px 0 8px; text-shadow: 0 0 20px rgba(0,240,255,0.2);
}

.login-subtitle {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 4px;
  color: var(--cg); opacity: 0.5; margin-bottom: 30px;
}

.login-input-wrap { margin-bottom: 20px; }

.login-input {
  width: 100%; background: rgba(0,15,30,0.6);
  border: 1px solid rgba(0,240,255,0.2); border-radius: 4px;
  padding: 12px 16px; font-family: var(--font-mono); font-size: 14px; letter-spacing: 2px;
  color: var(--cm); text-align: center; outline: none; transition: all 0.3s;
}
.login-input::placeholder { color: rgba(0,240,255,0.3); }
.login-input:focus { border-color: var(--cg); box-shadow: 0 0 15px rgba(0,240,255,0.15); }

.login-btn {
  width: 100%; background: linear-gradient(135deg, var(--cd), var(--cc));
  border: none; border-radius: 4px; padding: 12px;
  font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: 3px;
  color: var(--cm); cursor: pointer; transition: all 0.3s; text-transform: uppercase;
}
.login-btn:hover { background: linear-gradient(135deg, var(--cc), var(--cg)); box-shadow: 0 0 20px rgba(0,240,255,0.3); }

.login-error { color: #ff4466; font-size: 12px; letter-spacing: 1px; margin-top: 12px; min-height: 16px; }

/* 管理面板 */
.dashboard { position: relative; z-index: 10; padding: 80px 30px 40px; max-width: 1000px; margin: 0 auto; }

.dashboard-tabs {
  display: flex; gap: 8px; margin-bottom: 24px;
  border-bottom: 1px solid rgba(0,240,255,0.1); padding-bottom: 12px;
}

.dash-tab {
  background: none; border: none; font-family: var(--font-display);
  font-size: 13px; font-weight: 500; letter-spacing: 2px;
  color: var(--cm); opacity: 0.4; cursor: pointer;
  padding: 8px 20px; transition: all 0.3s; position: relative;
}
.dash-tab:hover { opacity: 0.7; }
.dash-tab.active { opacity: 1; color: var(--cg); }
.dash-tab.active::after {
  content: ''; position: absolute; bottom: -13px; left: 0; right: 0;
  height: 2px; background: var(--cg); box-shadow: 0 0 6px var(--cg);
}

.dash-panel { display: none; }
.dash-panel.active { display: block; }

.dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.dash-title { font-family: var(--font-display); font-size: 18px; font-weight: 700; letter-spacing: 3px; color: var(--cm); }

.dash-add-btn {
  background: rgba(0,240,255,0.1); border: 1px solid rgba(0,240,255,0.3); border-radius: 4px;
  padding: 8px 16px; font-family: var(--font-body); font-size: 13px; font-weight: 600; letter-spacing: 1px;
  color: var(--cg); cursor: pointer; transition: all 0.3s;
}
.dash-add-btn:hover { background: rgba(0,240,255,0.2); border-color: var(--cg); }

/* 新闻列表 */
.news-admin-list { display: flex; flex-direction: column; gap: 12px; }

.news-admin-item {
  background: rgba(0,15,30,0.5); border: 1px solid rgba(0,240,255,0.1); border-radius: 4px;
  padding: 16px 20px; display: flex; align-items: center; gap: 16px; transition: all 0.3s;
}
.news-admin-item:hover { border-color: rgba(0,240,255,0.3); background: rgba(0,20,40,0.6); }

.news-admin-info { flex: 1; }
.news-admin-title { font-family: var(--font-display); font-size: 14px; font-weight: 500; letter-spacing: 1px; color: var(--cm); margin-bottom: 4px; }
.news-admin-meta { display: flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 10px; letter-spacing: 1px; flex-wrap: wrap; }

.meta-badge { padding: 2px 8px; border-radius: 2px; text-transform: uppercase; }
.meta-badge.breaking { color: #ff4466; background: rgba(255,68,102,0.1); border: 1px solid rgba(255,68,102,0.3); }
.meta-badge.important { color: #ffaa00; background: rgba(255,170,0,0.1); border: 1px solid rgba(255,170,0,0.3); }
.meta-badge.normal { color: var(--cg); background: rgba(0,240,255,0.08); border: 1px solid rgba(0,240,255,0.15); }
.meta-badge.published { color: #00ff88; background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.2); }
.meta-badge.draft { color: #888; background: rgba(128,128,128,0.1); border: 1px solid rgba(128,128,128,0.2); }
.meta-badge.pinned { color: var(--cg); background: rgba(0,240,255,0.1); border: 1px solid rgba(0,240,255,0.3); }
.meta-date { color: var(--cg); opacity: 0.4; }

.news-admin-actions { display: flex; gap: 8px; }
.action-btn {
  background: none; border: 1px solid rgba(0,240,255,0.2); border-radius: 3px;
  padding: 6px 12px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 1px;
  color: var(--cg); cursor: pointer; transition: all 0.3s;
}
.action-btn:hover { background: rgba(0,240,255,0.1); border-color: var(--cg); }
.action-btn.danger { color: #ff4466; border-color: rgba(255,68,102,0.2); }
.action-btn.danger:hover { background: rgba(255,68,102,0.1); border-color: #ff4466; }

/* 轮播图列表 */
.banner-admin-list { display: flex; flex-direction: column; gap: 12px; }
.banner-admin-item {
  background: rgba(0,15,30,0.5); border: 1px solid rgba(0,240,255,0.1); border-radius: 4px;
  padding: 16px; display: flex; gap: 16px; align-items: center; transition: all 0.3s;
}
.banner-admin-item:hover { border-color: rgba(0,240,255,0.3); }
.banner-thumb { width: 120px; height: 60px; border-radius: 4px; background-size: cover; background-position: center; flex-shrink: 0; border: 1px solid rgba(0,240,255,0.1); }
.banner-admin-info { flex: 1; }
.banner-admin-title { font-family: var(--font-display); font-size: 14px; font-weight: 500; color: var(--cm); margin-bottom: 4px; }
.banner-admin-meta { font-family: var(--font-mono); font-size: 10px; color: var(--cg); opacity: 0.5; }

/* 弹窗 */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,5,11,0.85); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}

.modal-content {
  background: rgba(0,12,25,0.95); border: 1px solid rgba(0,240,255,0.2); border-radius: 8px;
  width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 0 60px rgba(0,100,200,0.15);
}

.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid rgba(0,240,255,0.1); }
.modal-header h3 { font-family: var(--font-display); font-size: 16px; font-weight: 700; letter-spacing: 2px; color: var(--cm); }
.modal-close { background: none; border: none; font-size: 24px; color: var(--cg); opacity: 0.5; cursor: pointer; transition: opacity 0.3s; }
.modal-close:hover { opacity: 1; }

.modal-body { padding: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 2px; color: var(--cg); opacity: 0.6; margin-bottom: 6px; text-transform: uppercase; }

.form-group input, .form-group textarea, .form-group select {
  width: 100%; background: rgba(0,15,30,0.6); border: 1px solid rgba(0,240,255,0.15); border-radius: 4px;
  padding: 10px 14px; font-family: var(--font-body); font-size: 13px; color: var(--cm); outline: none; transition: all 0.3s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--cg); box-shadow: 0 0 10px rgba(0,240,255,0.1); }
.form-group textarea { resize: vertical; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

.modal-footer { display: flex; justify-content: flex-end; gap: 12px; padding: 16px 24px; border-top: 1px solid rgba(0,240,255,0.1); }
.modal-btn { padding: 10px 24px; border-radius: 4px; font-family: var(--font-display); font-size: 12px; font-weight: 600; letter-spacing: 2px; cursor: pointer; transition: all 0.3s; border: none; }
.modal-cancel { background: rgba(128,128,128,0.1); color: var(--cm); opacity: 0.6; }
.modal-cancel:hover { opacity: 1; }
.modal-save { background: linear-gradient(135deg, var(--cd), var(--cc)); color: var(--cm); }
.modal-save:hover { background: linear-gradient(135deg, var(--cc), var(--cg)); box-shadow: 0 0 15px rgba(0,240,255,0.2); }

.empty-state { text-align: center; padding: 40px; color: var(--cg); opacity: 0.3; font-size: 14px; letter-spacing: 2px; }

@media (max-width: 640px) {
  .dashboard { padding: 70px 16px 20px; }
  .news-admin-item { flex-direction: column; align-items: flex-start; }
  .news-admin-actions { width: 100%; }
  .form-row { flex-direction: column; }
  .banner-admin-item { flex-direction: column; }
  .banner-thumb { width: 100%; }
}