/* ═══════════════════════════════════════════════
   特种交通图鉴网 — 科幻技术风格
   ═══════════════════════════════════════════════ */

:root {
  --bg-deep:    #050a14;
  --bg-mid:     #090f1e;
  --bg-card:    #0d1628;
  --bg-glass:   rgba(13, 22, 40, 0.85);
  --accent:     #00e5ff;
  --accent2:    #7c3aff;
  --accent3:    #ff6b35;
  --line:       rgba(0, 229, 255, 0.18);
  --line-strong:rgba(0, 229, 255, 0.45);
  --text-main:  #cfe8ff;
  --text-dim:   #6a8cb0;
  --text-white: #e8f4ff;
  --danger:     #ff3b5c;
  --success:    #00ff9d;
  --font-mono:  'Courier New', 'Consolas', monospace;
  --font-main:  'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --radius:     4px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 14px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 背景网格纹理 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ─── 扫描线动效 ─── */
body::after {
  content: '';
  position: fixed;
  top: -100%;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: scanline 8s linear infinite;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}
@keyframes scanline {
  0%   { top: -2px; }
  100% { top: 100vh; }
}

/* ─── 滚动条 ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 3px; }

/* ═══════════ HEADER ═══════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(5, 10, 20, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 255, 0.08);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
  font-size: 18px;
  flex-shrink: 0;
}

.logo-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
}

.logo-text {
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
  white-space: nowrap;
  line-height: 1.2;
}

.logo-sub {
  font-family: var(--font-main);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  white-space: nowrap;
  line-height: 1.3;
}

/* 搜索栏 */
.header-search {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.header-search input {
  width: 100%;
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 40px 8px 14px;
  outline: none;
  transition: var(--transition);
}
.header-search input::placeholder { color: var(--text-dim); }
.header-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
}

.header-search button {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 38px;
  background: transparent;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 16px;
  transition: var(--transition);
}
.header-search button:hover { color: white; }

.header-nav { display: flex; gap: 8px; margin-left: auto; }

.btn-nav {
  padding: 7px 16px;
  border-radius: var(--radius);
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 1px;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.btn-nav-outline {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--accent);
}
.btn-nav-outline:hover {
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.1);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}
.btn-nav-solid {
  background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(124,58,255,0.15));
  border: 1px solid var(--accent);
  color: var(--accent);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}
.btn-nav-solid:hover {
  background: linear-gradient(135deg, rgba(0,229,255,0.3), rgba(124,58,255,0.3));
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.4);
}

/* ═══════════ 顶部展示栏（轮播） ═══════════ */
.showcase-banner {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.showcase-track {
  display: flex;
  height: 100%;
  animation: marquee-scroll 45s linear infinite;
  will-change: transform;
}
.showcase-track:hover { animation-play-state: paused; }
.showcase-track.single-item {
  animation: none;
  justify-content: center;
}

@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.showcase-item {
  flex-shrink: 0;
  width: 360px;
  height: 100%;
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--line);
  cursor: pointer;
}

.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: brightness(0.75) saturate(0.85);
}
.showcase-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.9) saturate(1.1);
}

.showcase-item-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 22px 12px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  font-size: 12px;
  color: var(--text-white);
  font-family: var(--font-mono);
}

.showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--bg-deep) 0%,
    transparent 8%,
    transparent 92%,
    var(--bg-deep) 100%
  );
  pointer-events: none;
  z-index: 2;
}

.showcase-corner {
  position: absolute;
  top: 12px;
  left: 16px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
}
.showcase-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  padding: 3px 10px;
  border: 1px solid var(--accent);
  border-radius: 2px;
  background: rgba(0, 229, 255, 0.08);
  text-shadow: 0 0 8px var(--accent);
}

.showcase-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
}

/* ═══════════ 筛选导航栏 ═══════════ */
.filter-bar {
  background: var(--bg-mid);
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
  position: sticky;
  top: 60px;
  z-index: 900;
}

.filter-inner {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
}

.filter-select {
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 12px;
  padding: 6px 28px 6px 10px;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2300e5ff' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: var(--transition);
  min-width: 90px;
}
.filter-select:focus, .filter-select:hover {
  border-color: var(--accent);
  background-color: rgba(0, 229, 255, 0.1);
}
.filter-select option {
  background: var(--bg-card);
  color: var(--text-main);
}

.filter-divider {
  width: 1px;
  height: 20px;
  background: var(--line);
}

/* 种类切换按钮组 */
.type-btn-group {
  display: flex;
  gap: 6px;
  align-items: center;
}
.type-btn {
  font-family: var(--font-main);
  font-size: 12px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 5px 14px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: var(--transition);
  white-space: nowrap;
}
.type-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.06);
}
.type-btn.active {
  color: var(--bg-deep);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.btn-filter-reset {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 12px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: var(--transition);
}
.btn-filter-reset:hover { color: var(--danger); border-color: var(--danger); }

/* ═══════════ 主内容区 ═══════════ */
.main-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 24px 60px;
  position: relative;
  z-index: 1;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.section-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--line);
  padding: 2px 8px;
  border-radius: 2px;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--line-strong), transparent);
}

/* 图鉴网格 */
.entries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.entry-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  display: block;
  transition: var(--transition);
  position: relative;
}
.entry-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: var(--transition);
  pointer-events: none;
}
.entry-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: 0 8px 32px rgba(0, 229, 255, 0.12);
}
.entry-card:hover::before {
  border-color: rgba(0, 229, 255, 0.3);
}

.card-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
  filter: brightness(0.85) saturate(0.9);
  transition: var(--transition);
}
.entry-card:hover .card-thumb {
  filter: brightness(1) saturate(1.1);
}

.card-no-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-mid);
  color: var(--text-dim);
  font-size: 28px;
}

.card-body {
  padding: 12px 14px 14px;
}

.card-name {
  font-size: 14px;
  color: var(--text-white);
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 2px;
  letter-spacing: 0.5px;
}
.tag-type    { background: rgba(124, 58, 255, 0.2); color: #b794ff; border: 1px solid rgba(124,58,255,0.3); }
.tag-domain  { background: rgba(0, 229, 255, 0.1);  color: var(--accent); border: 1px solid var(--line); }
.tag-country { background: rgba(255, 107, 53, 0.1); color: #ff9a6c; border: 1px solid rgba(255,107,53,0.3); }

.card-corner {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid var(--accent);
  border-right: 1.5px solid var(--accent);
}

.no-entries {
  grid-column: 1/-1;
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
}

/* ═══════════ 登录弹窗 ═══════════ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 2000;
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 36px 32px;
  width: 420px;
  max-width: 95vw;
  position: relative;
  box-shadow: 0 0 60px rgba(0, 229, 255, 0.15);
}

.modal-title {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 24px;
  text-transform: uppercase;
  text-align: center;
}

.modal-corner {
  position: absolute;
  width: 14px;
  height: 14px;
}
.modal-corner-tl { top: 10px; left: 10px; border-top: 1.5px solid var(--accent); border-left: 1.5px solid var(--accent); }
.modal-corner-tr { top: 10px; right: 10px; border-top: 1.5px solid var(--accent); border-right: 1.5px solid var(--accent); }
.modal-corner-bl { bottom: 10px; left: 10px; border-bottom: 1.5px solid var(--accent); border-left: 1.5px solid var(--accent); }
.modal-corner-br { bottom: 10px; right: 10px; border-bottom: 1.5px solid var(--accent); border-right: 1.5px solid var(--accent); }

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}
.modal-close:hover { color: var(--danger); }

.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  background: rgba(0, 229, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  transition: var(--transition);
  letter-spacing: 1px;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}
.form-input::placeholder { color: var(--text-dim); }

.btn-submit {
  width: 100%;
  padding: 11px;
  background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(124,58,255,0.2));
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
}
.btn-submit:hover {
  background: linear-gradient(135deg, rgba(0,229,255,0.28), rgba(124,58,255,0.35));
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

/* ═══════════ Flash 消息 ═══════════ */
.flash-container {
  position: fixed;
  top: 72px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 360px;
}

.flash-msg {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 12px;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: flash-in 0.3s ease;
  backdrop-filter: blur(8px);
}
@keyframes flash-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
.flash-success { background: rgba(0,255,157,0.1); border: 1px solid rgba(0,255,157,0.4); color: var(--success); }
.flash-error   { background: rgba(255,59,92,0.1);  border: 1px solid rgba(255,59,92,0.4); color: var(--danger); }

/* ═══════════ 上传页 ═══════════ */
.upload-page {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 24px 60px;
  position: relative;
  z-index: 1;
}

.page-title {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 10px;
}

.upload-form-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 32px;
  position: relative;
}
.upload-form-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}
.form-row-full { margin-bottom: 18px; }

.form-select {
  width: 100%;
  background: rgba(0, 229, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  transition: var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2300e5ff' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.form-select:focus { border-color: var(--accent); }
.form-select option { background: var(--bg-card); }

.form-textarea {
  width: 100%;
  background: rgba(0, 229, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  resize: vertical;
  min-height: 100px;
  transition: var(--transition);
  font-family: var(--font-main);
}
.form-textarea:focus { border-color: var(--accent); }

/* 文件上传区 */
.file-drop-zone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.file-drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.06);
}
.file-drop-zone-icon { font-size: 36px; margin-bottom: 10px; }
.file-drop-zone-text { color: var(--text-dim); font-size: 12px; font-family: var(--font-mono); }
.file-drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.file-preview-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.file-preview-item {
  width: 80px;
  height: 60px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.file-preview-item img, .file-preview-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ═══════════ 管理后台 ═══════════ */
.admin-page {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 24px 60px;
  position: relative;
  z-index: 1;
}

.admin-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  align-items: start;
}

.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}
.admin-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
}

.admin-card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-card-body { padding: 20px; }

.key-item {
  background: rgba(0, 229, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}
.key-item:hover { border-color: var(--line-strong); }

.key-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  flex: 1;
  word-break: break-all;
  letter-spacing: 1px;
}
.key-note {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}
.key-date {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.btn-danger {
  background: transparent;
  border: 1px solid rgba(255,59,92,0.4);
  color: var(--danger);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-danger:hover {
  background: rgba(255, 59, 92, 0.15);
  border-color: var(--danger);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(124,58,255,0.2));
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 8px 18px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 1px;
}
.btn-primary:hover {
  background: linear-gradient(135deg, rgba(0,229,255,0.28), rgba(124,58,255,0.35));
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.25);
}

/* 管理条目表 */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.admin-table th {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}
.admin-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(0, 229, 255, 0.05);
  color: var(--text-main);
  vertical-align: middle;
}
.admin-table tr:hover td { background: rgba(0, 229, 255, 0.03); }

/* ═══════════ 详情页 ═══════════ */
.detail-page {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 24px 60px;
  position: relative;
  z-index: 1;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
}

.media-gallery {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.media-main {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: contain;
  background: #000;
  display: block;
}

.media-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 12px;
  background: var(--bg-mid);
  border-top: 1px solid var(--line);
}
.media-thumb {
  width: 64px;
  height: 48px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition);
}
.media-thumb:hover, .media-thumb.active {
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
}

.detail-info {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  position: sticky;
  top: 80px;
}
.detail-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 14px;
  line-height: 1.4;
}
.detail-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.detail-desc {
  font-size: 13px;
  color: var(--text-main);
  line-height: 1.8;
  margin-bottom: 16px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.detail-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
  padding-top: 14px;
  line-height: 1.9;
}

/* ═══════════ 错误页 ═══════════ */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  position: relative;
  z-index: 1;
}
.error-code {
  font-family: var(--font-mono);
  font-size: 80px;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  text-shadow: 0 0 30px var(--accent);
}
.error-msg {
  font-family: var(--font-mono);
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-top: 10px;
}

/* ═══════════ 响应式 ═══════════ */
@media (max-width: 768px) {
  .admin-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .showcase-banner { height: 150px; }
  .showcase-item { width: 220px; }
  .header-inner { gap: 10px; }
  .logo-sub { display: none; }
  .filter-bar { top: 60px; }
}

/* ═══════════ 工具类 ═══════════ */
.text-accent  { color: var(--accent); }
.text-dim     { color: var(--text-dim); }
.text-mono    { font-family: var(--font-mono); }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.gap-8 { gap: 8px; }
.flex  { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.w-full { width: 100%; }