/**
 * components.css - 公共组件样式
 * @author 看雲起雲落
 */

/* ====== 顶部导航栏 ====== */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 18, 0.92);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.top-nav.scrolled {
  background: rgba(10, 10, 18, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-back:hover {
  opacity: 0.75;
  transform: translateX(-2px);
}

.nav-game-name {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}

.nav-breadcrumb {
  font-size: 0.75rem;
  color: var(--text-muted, #666);
  display: none;
  white-space: nowrap;
}

/* 页面主区域偏移 */
.page-content {
  padding-top: 84px;
}

/* ====== 页面头部 ====== */
.page-header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2.5rem 2rem;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.15));
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.profile-img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  margin: 0 auto 1rem;
  box-shadow: 0 0 15px var(--shadow-color);
  transition: all 0.3s ease;
}

.profile-img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 25px var(--shadow-color);
}

.page-header h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
  letter-spacing: 2px;
  text-shadow: 0 2px 10px var(--shadow-color);
}

.page-header .subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ====== 返回链接 ====== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: all 0.2s ease;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
}

.back-link:hover {
  border-bottom-color: var(--accent);
  transform: translateX(-3px);
}

/* ====== 面包屑导航 ====== */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted, #666);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb a {
  color: var(--accent);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--text-primary);
}

.breadcrumb .separator {
  color: var(--text-muted);
}

/* ====== 卡片网格 ====== */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

/* ====== 引导卡片 ====== */
.guide-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.75rem;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* 卡片顶部渐变条 */
.guide-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

/* 卡片底部渐变 */
.guide-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.1));
  pointer-events: none;
}

.guide-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow:
    0 12px 30px var(--shadow-color),
    0 0 0 1px var(--accent),
    inset 0 1px 0 rgba(255,255,255,0.05);
}

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

.guide-card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
  color: var(--text-primary, #fff);
  transition: color 0.2s ease;
  position: relative;
  z-index: 1;
}

.guide-card:hover h2 {
  color: var(--accent);
}

.guide-card p {
  color: var(--text-secondary, #b0b0c0);
  font-size: 0.88rem;
  margin-bottom: 1rem;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* ====== 标签 ====== */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
  position: relative;
  z-index: 1;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.3);
  color: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.2s ease;
}

.tag:hover {
  background: var(--accent);
  color: var(--bg-main);
}

/* ====== 按钮 ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: var(--bg-main);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.82rem;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-bright, var(--accent)), var(--accent));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.btn:hover::before {
  opacity: 1;
}

.btn span {
  position: relative;
  z-index: 1;
}

/* ====== 响应式 ====== */
@media (max-width: 768px) {
  .top-nav {
    padding: 0 1rem;
    height: 56px;
  }

  .nav-breadcrumb {
    display: none !important;
  }

  .nav-game-name {
    font-size: 0.9rem;
  }

  .page-content {
    padding-top: 76px;
  }

  .guides-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .guide-card {
    padding: 1.25rem;
  }

  .page-header {
    padding: 1.5rem 1rem;
    margin-bottom: 2rem;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .back-link {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .nav-inner {
    gap: 0.5rem;
  }

  .nav-game-name {
    font-size: 0.8rem;
    letter-spacing: 0;
  }

  .guide-card h2 {
    font-size: 1.1rem;
  }

  .guide-card p {
    font-size: 0.82rem;
  }
}