/* ============================================
   GradMatch — 明亮科技风
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700&family=Share+Tech+Mono&display=swap');

:root {
  --bg-page:      #f0f4f8;
  --bg-white:     #ffffff;
  --primary:      #0ea5e9;
  --primary-dark: #0284c7;
  --primary-glow: rgba(14, 165, 233, 0.35);
  --accent:       #06b6d4;
  --accent-glow:  rgba(6, 182, 212, 0.3);
  --success:      #10b981;
  --text-main:    #0f172a;
  --text-regular: #475569;
  --text-sub:     #94a3b8;
  --text-hint:    #cbd5e1;
  --border:       #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:    0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg:    0 10px 40px rgba(0,0,0,0.1);
  --shadow-glow:  0 0 20px var(--primary-glow), 0 4px 20px rgba(0,0,0,0.08);
  --radius:       10px;
  --font:         'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --font-mono:    'Share Tech Mono', 'Courier New', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-page);
  min-height: 100vh;
  overflow-x: hidden;
}

/* --- 背景装饰 --- */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}

.bg-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.08) 0%, transparent 70%);
  animation: glowDrift 15s ease-in-out infinite alternate;
}

@keyframes glowDrift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-100px, 80px) scale(1.2); }
}

/* --- App --- */
#app { position: relative; z-index: 1; min-height: 100vh; }

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 32px;
  height: 56px;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px var(--primary-glow), 0 0 16px rgba(14,165,233,0.15);
  animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { box-shadow: 0 2px 8px var(--primary-glow), 0 0 16px rgba(14,165,233,0.15); }
  50%      { box-shadow: 0 2px 12px var(--primary-glow), 0 0 24px rgba(14,165,233,0.3); }
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
}

.header-stat {
  font-size: 13px;
  color: var(--text-sub);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.header-stat strong {
  color: var(--primary);
  font-weight: 600;
}

/* --- Main --- */
.main-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 40px 0 32px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 480px;
  margin: 0 auto;
  font-weight: 400;
  line-height: 1.7;
}

.hero-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 24px auto 0;
  border-radius: 1px;
}

/* --- 搜索栏 --- */
.search-section {
  margin-bottom: 28px;
}

.search-bar {
  max-width: 560px;
  margin: 0 auto;
}

.result-count {
  text-align: center;
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 10px;
  font-family: var(--font-mono);
}

.result-count strong {
  color: var(--primary);
}

/* --- 加载更多 --- */
.load-more-wrap {
  display: flex;
  justify-content: center;
  padding: 36px 0 16px;
}

.load-more-wrap .el-button {
  border-radius: 20px !important;
  padding: 10px 32px !important;
  font-family: var(--font) !important;
  font-weight: 500 !important;
  letter-spacing: 0.02em;
}

/* --- 骨架屏 --- */
.skeleton-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.skeleton-cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(90deg, #f0f2f5 25%, #e8eaed 50%, #f0f2f5 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-body {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skeleton-line {
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(90deg, #f0f2f5 25%, #e8eaed 50%, #f0f2f5 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-line.w80 { width: 80%; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w40 { width: 40%; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- 回到顶部 --- */
.back-top {
  position: fixed;
  right: 32px;
  bottom: 40px;
  width: 40px;
  height: 40px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all 0.25s;
  z-index: 100;
}

.back-top:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.fade-enter-active, .fade-leave-active {
  transition: opacity 0.25s;
}
.fade-enter, .fade-leave-to {
  opacity: 0;
}

/* --- 卡片网格 --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

/* --- 卡片 --- */
.project-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(14,165,233,0.3);
}

.project-card:hover::before {
  opacity: 1;
}

.card-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #e0f2fe, #f0f9ff);
}

.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.project-card:hover .card-cover img {
  transform: scale(1.04);
}

.card-media-count {
  position: absolute;
  bottom: 8px;
  right: 8px;
  display: flex;
  gap: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: #fff;
  background: rgba(15,23,42,0.6);
  padding: 3px 10px;
  border-radius: 12px;
  backdrop-filter: blur(8px);
}

.card-media-count i {
  margin-right: 2px;
}

.card-body {
  padding: 16px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-desc {
  font-size: 13px;
  color: var(--text-regular);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}

.tech-tag {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  letter-spacing: 0.02em;
  border-color: rgba(14,165,233,0.25) !important;
  color: var(--primary-dark) !important;
  background: rgba(14,165,233,0.05) !important;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* --- 详情弹窗 --- */
.detail-dialog {
  border-radius: var(--radius) !important;
  overflow: hidden;
}

.detail-dialog::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--success));
  z-index: 1;
}

.detail-dialog .el-dialog__header {
  padding: 20px 24px 14px !important;
  border-bottom: 1px solid var(--border);
}

.detail-dialog .el-dialog__title {
  font-size: 18px !important;
  font-weight: 700 !important;
  color: var(--text-main) !important;
  line-height: 1.4;
}

.detail-dialog .el-dialog__body {
  padding: 20px 24px 28px !important;
}

.detail-section {
  margin-bottom: 28px;
}

.detail-section:last-child {
  margin-bottom: 0;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
  font-family: var(--font-mono);
}

.section-label i {
  margin-right: 4px;
}

.detail-desc {
  font-size: 14px;
  color: var(--text-regular);
  line-height: 1.9;
  text-align: justify;
}

/* 图片画廊 */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.gallery-item {
  aspect-ratio: 16 / 10;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.25s;
  background: #f0f4f8;
}

.gallery-item:hover {
  border-color: var(--primary);
  box-shadow: 0 0 16px var(--primary-glow);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* 视频 */
.video-wrapper {
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid var(--border);
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 详情区操作按钮（在线预览等） */
.detail-actions {
  margin-top: 12px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* 图片预览 */
.image-viewer {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(15,23,42,0.6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  animation: viewerIn 0.2s ease;
}

@keyframes viewerIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.image-viewer-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  font-size: 16px;
  color: #475569;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.image-viewer-close:hover {
  background: #fff;
  color: #0f172a;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.image-viewer-img {
  max-width: 70vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
  cursor: default;
}

/* --- 空状态 --- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
}

/* --- 页脚 --- */
.site-footer {
  text-align: center;
  padding: 40px 24px 32px;
  font-size: 13px;
  color: var(--text-hint);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* --- 入场动画 --- */
.card-enter {
  opacity: 0;
  transform: translateY(16px);
  animation: cardEnter 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes cardEnter {
  to { opacity: 1; transform: translateY(0); }
}

/* --- Element UI 微调 --- */
.el-input__inner {
  border-radius: 8px !important;
  font-family: var(--font) !important;
}

.el-input__inner:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(14,165,233,0.1) !important;
}

.v-modal {
  background: rgba(15,23,42,0.3) !important;
  backdrop-filter: blur(4px);
}

.el-pager li.active {
  background: var(--primary) !important;
  color: #fff !important;
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .site-header {
    padding: 0 16px;
    height: 50px;
  }

  .main-content {
    padding: 16px;
  }

  .hero {
    padding: 28px 0 20px;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-dialog {
    width: 95% !important;
    margin: 4vh auto !important;
  }
}