/* ===== 影之刃零攻略站 - 全站样式 ===== */
:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #141418;
  --bg-card: #1a1a20;
  --bg-card-hover: #22222a;
  --border-color: #2a2a32;
  --text-primary: #e8e6e3;
  --text-secondary: #9a9894;
  --text-muted: #6a6864;
  --accent-red: #c41e3a;
  --accent-red-light: #e63950;
  --accent-gold: #c9a961;
  --accent-gold-light: #e0c98f;
  --accent-cyan: #4a9ea8;
  --shadow-glow: 0 0 20px rgba(196, 30, 58, 0.15);
  --font-main: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ui);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at top, rgba(196, 30, 58, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(201, 169, 97, 0.04) 0%, transparent 50%);
}

a { color: var(--accent-gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-gold-light); }

img { max-width: 100%; height: auto; }

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-main);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo .logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-red), #8b0000);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--accent-gold);
  font-weight: 900;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 14px;
  color: var(--text-secondary);
  font-size: 14px;
  border-radius: 6px;
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
}

/* ===== Hero 首页大图 ===== */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10,10,12,0.3) 0%, rgba(10,10,12,0.7) 60%, var(--bg-primary) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cpath d='M60 10 L110 60 L60 110 L10 60 Z' fill='none' stroke='%232a2a32' stroke-width='0.5'/%3E%3C/svg%3E");
  background-size: cover, 120px 120px;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 60px 24px;
}

.hero-title {
  font-family: var(--font-main);
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 900;
  letter-spacing: 12px;
  margin-bottom: 16px;
  background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 60px rgba(196, 30, 58, 0.3);
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  letter-spacing: 6px;
  margin-bottom: 32px;
}

.hero-tagline {
  font-family: var(--font-main);
  font-size: 18px;
  color: var(--accent-gold);
  margin-bottom: 40px;
  letter-spacing: 2px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  border: 1px solid transparent;
  letter-spacing: 1px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-red), #8b0000);
  color: #fff;
  box-shadow: 0 4px 20px rgba(196, 30, 58, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(196, 30, 58, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-outline:hover {
  background: rgba(201, 169, 97, 0.1);
  color: var(--accent-gold-light);
}

/* ===== 通用容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 64px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-family: var(--font-main);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 6px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-red), transparent);
  margin: 16px auto 0;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 15px;
}

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 24px;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent-red);
  opacity: 0;
  transition: opacity 0.25s;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(196, 30, 58, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

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

.card-icon {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--accent-gold);
}

.card-title {
  font-family: var(--font-main);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-meta {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 数据统计条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin: 48px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-main);
  font-size: 36px;
  font-weight: 900;
  color: var(--accent-gold);
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
  letter-spacing: 1px;
}

/* ===== 表格 ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-secondary);
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-gold);
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td { background: var(--bg-card-hover); }

/* ===== 时间线 ===== */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-red), var(--border-color));
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-red);
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 8px rgba(196, 30, 58, 0.5);
}

.timeline-date {
  font-size: 13px;
  color: var(--accent-gold);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-content {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  margin: 2px;
}

.tag-red { background: rgba(196, 30, 58, 0.15); color: var(--accent-red-light); }
.tag-gold { background: rgba(201, 169, 97, 0.15); color: var(--accent-gold); }
.tag-cyan { background: rgba(74, 158, 168, 0.15); color: var(--accent-cyan); }
.tag-gray { background: rgba(106, 104, 100, 0.15); color: var(--text-muted); }

/* ===== 页面标题区 ===== */
.page-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.page-title {
  font-family: var(--font-main);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 8px;
}

.page-breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
}

.page-breadcrumb a { color: var(--text-secondary); }

/* ===== 内容文章区 ===== */
.article {
  max-width: 860px;
  margin: 0 auto;
}

.article h2 {
  font-family: var(--font-main);
  font-size: 24px;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--accent-red);
  color: var(--text-primary);
}

.article h3 {
  font-size: 18px;
  margin: 28px 0 12px;
  color: var(--accent-gold);
}

.article p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 15px;
}

.article ul, .article ol {
  margin: 12px 0 16px 24px;
  color: var(--text-secondary);
  font-size: 15px;
}

.article li { margin-bottom: 6px; }

.article blockquote {
  border-left: 3px solid var(--accent-gold);
  padding: 12px 20px;
  margin: 20px 0;
  background: var(--bg-card);
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== 视频嵌入 ===== */
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  margin: 20px 0;
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ===== 两栏布局 ===== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* ===== 提示框 ===== */
.alert {
  padding: 16px 20px;
  border-radius: 8px;
  margin: 20px 0;
  font-size: 14px;
  border: 1px solid;
}

.alert-warning {
  background: rgba(201, 169, 97, 0.08);
  border-color: rgba(201, 169, 97, 0.3);
  color: var(--accent-gold-light);
}

.alert-info {
  background: rgba(74, 158, 168, 0.08);
  border-color: rgba(74, 158, 168, 0.3);
  color: var(--accent-cyan);
}

.alert-danger {
  background: rgba(196, 30, 58, 0.08);
  border-color: rgba(196, 30, 58, 0.3);
  color: var(--accent-red-light);
}

/* ===== 底部 ===== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 48px 0 32px;
  margin-top: 64px;
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .footer-logo {
  font-family: var(--font-main);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 14px;
  color: var(--accent-gold);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 8px; }

.footer-col a {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-col a:hover { color: var(--accent-gold-light); }

.footer-bottom {
  max-width: 1280px;
  margin: 32px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--accent-gold);
  font-size: 20px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: all 0.2s;
}

.back-to-top:hover {
  background: var(--accent-red);
  color: #fff;
  border-color: var(--accent-red);
}

.back-to-top.visible { display: flex; }

/* ===== 搜索与筛选 ===== */
.search-box {
  position: relative;
  margin: 20px 0;
}

.search-box input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: var(--font-ui);
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.15);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  opacity: 0.6;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 24px;
}

.filter-tag {
  padding: 6px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.filter-tag:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.filter-tag.active {
  background: var(--accent-red);
  border-color: var(--accent-red);
  color: #fff;
}

.search-result-count {
  font-size: 13px;
  color: var(--text-muted);
  margin: 8px 0 16px;
}

.no-result {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ===== 评论区 ===== */
.comments-section {
  max-width: 860px;
  margin: 48px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.comments-section h3 {
  font-family: var(--font-main);
  font-size: 20px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .two-col { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero { min-height: 400px; }
}

@media (max-width: 600px) {
  .nav-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
  .section { padding: 40px 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .data-table { font-size: 13px; }
  .data-table th, .data-table td { padding: 10px 8px; }
}

/* ===== 主题切换 ===== */
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
}

.theme-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
}

.theme-btn:hover { transform: scale(1.15); }
.theme-btn.active { border-color: var(--text-primary); box-shadow: 0 0 8px rgba(255,255,255,0.3); }

.theme-btn[data-theme="default"] { background: linear-gradient(135deg, #c41e3a, #c9a961); }
.theme-btn[data-theme="qing"] { background: linear-gradient(135deg, #4a9ea8, #b8c5d6); }
.theme-btn[data-theme="light"] { background: linear-gradient(135deg, #f5f0e8, #c41e3a); }

/* 墨青主题 */
body.theme-qing {
  --accent-red: #4a9ea8;
  --accent-red-light: #6bbfc9;
  --accent-gold: #b8c5d6;
  --accent-gold-light: #d8e2ed;
  --shadow-glow: 0 0 20px rgba(74, 158, 168, 0.15);
}

body.theme-qing .logo-mark {
  background: linear-gradient(135deg, #4a9ea8, #2a6e78);
}

body.theme-qing .btn-primary {
  background: linear-gradient(135deg, #4a9ea8, #2a6e78);
  box-shadow: 0 4px 20px rgba(74, 158, 168, 0.3);
}

body.theme-qing .btn-primary:hover {
  box-shadow: 0 6px 28px rgba(74, 158, 168, 0.45);
}

body.theme-qing .timeline-item::before {
  background: #4a9ea8;
  box-shadow: 0 0 8px rgba(74, 158, 168, 0.5);
}

body.theme-qing .timeline::before {
  background: linear-gradient(180deg, #4a9ea8, var(--border-color));
}

/* 昼白主题（浅色模式） */
body.theme-light {
  --bg-primary: #f5f0e8;
  --bg-secondary: #ebe5da;
  --bg-card: #ffffff;
  --bg-card-hover: #faf7f0;
  --border-color: #d8cfc0;
  --text-primary: #2a2520;
  --text-secondary: #5a5248;
  --text-muted: #8a8278;
  --shadow-glow: 0 0 20px rgba(196, 30, 58, 0.08);
  background-image:
    radial-gradient(ellipse at top, rgba(196, 30, 58, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(201, 169, 97, 0.06) 0%, transparent 50%);
}

body.theme-light .navbar {
  background: rgba(245, 240, 232, 0.92);
}

body.theme-light .hero-title {
  background: linear-gradient(180deg, #2a2520 0%, #8a8278 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

body.theme-light .search-box input {
  background: #fff;
  color: #2a2520;
}

body.theme-light .filter-tag {
  background: #fff;
  color: #5a5248;
}

body.theme-light .data-table { background: #fff; }
body.theme-light .data-table th { background: #ebe5da; }
body.theme-light .data-table tr:hover td { background: #faf7f0; }

body.theme-light .footer { background: #ebe5da; }

body.theme-light .back-to-top { background: #fff; }

@media (max-width: 900px) {
  .theme-switcher { margin-left: 0; margin-right: auto; }
}