/* ============================================
   华夏干线官方网站 - 主样式文件
   卡车运输模拟游戏 · 禁止使用紫色UI
   以方形为主，不对称布局
   ============================================ */

:root {
  --primary: #c8282e;
  --primary-dark: #a01e23;
  --primary-light: #e84550;
  --accent: #d4a017;
  --accent-dark: #b8860b;
  --bg-dark: #0a0c10;
  --bg-card: #111520;
  --bg-card2: #161b27;
  --bg-nav: #0d0f18;
  --border: #1e2535;
  --border-light: #2a3048;
  --text-primary: #e8eaf0;
  --text-secondary: #8a93a8;
  --text-muted: #5a6275;
  --success: #1a8c4e;
  --warning: #c87a00;
  --info: #1567c8;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-hover: 0 8px 40px rgba(0,0,0,0.7);
  --radius: 0px;
  --radius-sm: 2px;
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

img { max-width: 100%; display: block; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-light); }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== 顶部导航 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 15, 24, 0.97);
  border-bottom: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  backdrop-filter: blur(12px);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.navbar-logo {
  width: 42px;
  height: 42px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
  color: #fff;
  letter-spacing: 1px;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.navbar-title {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.navbar-title .name {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 3px;
}
.navbar-title .sub {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  font-weight: 400;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.navbar-menu li a {
  display: block;
  padding: 0 16px;
  height: 64px;
  line-height: 64px;
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  letter-spacing: 1px;
  white-space: nowrap;
}

.navbar-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}

.navbar-menu li a:hover,
.navbar-menu li a.active {
  color: var(--text-primary);
  background: rgba(200, 40, 46, 0.08);
}
.navbar-menu li a:hover::after,
.navbar-menu li a.active::after {
  transform: scaleX(1);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  letter-spacing: 1px;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--accent);
  color: #0a0c10;
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #0a0c10;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(200,40,46,0.06);
}

.btn-lg {
  padding: 12px 32px;
  font-size: 16px;
}

.btn-sm {
  padding: 5px 14px;
  font-size: 13px;
}

/* ===== 页面主体 ===== */
.page-wrapper {
  padding-top: 64px;
  min-height: 100vh;
}

/* ===== Hero 首页横幅 ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0c10 0%, #0f1520 60%, #1a0d0e 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(135deg, rgba(200,40,46,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 50%, rgba(212,160,23,0.08) 0%, transparent 60%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(30,37,53,0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,37,53,0.4) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}

.hero-left {
  padding-left: 20px;
}

.hero-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(200,40,46,0.15);
  border: 1px solid var(--primary);
  color: var(--primary-light);
  font-size: 12px;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 24px;
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 5px 100%, 0 calc(100% - 5px));
}

.hero-title {
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 6px;
  margin-bottom: 16px;
}

.hero-title .line1 {
  display: block;
  color: var(--text-primary);
}

.hero-title .line2 {
  display: block;
  color: var(--primary);
  text-shadow: 0 0 40px rgba(200,40,46,0.5);
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
  max-width: 420px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-right {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
}

.hero-card-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.hero-card-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
}

.hero-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ===== 滚动通知栏 ===== */
.marquee-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.marquee-label {
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  padding: 2px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-right: 20px;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 50%, calc(100% - 6px) 100%, 0 100%);
}

.marquee-content {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-block;
  animation: marqueeScroll 40s linear infinite;
}

.marquee-track span {
  font-size: 13px;
  color: var(--text-secondary);
  margin-right: 60px;
}

.marquee-track span::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--primary);
  margin-right: 10px;
  vertical-align: middle;
}

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

/* ===== 章节标题 ===== */
.section {
  padding: 80px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 50px;
}

.section-header.center { text-align: center; }
.section-header.left { text-align: left; }
.section-header.right { text-align: right; }

.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 3px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-title span {
  color: var(--primary);
}

.section-desc {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.8;
}

.section-header.center .section-desc {
  margin: 0 auto;
}

/* 章节分隔线 */
.section-divider {
  width: 48px;
  height: 3px;
  background: var(--primary);
  margin-bottom: 16px;
}
.section-header.center .section-divider { margin: 0 auto 16px; }

/* ===== 卡片通用 ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--bg-card2);
}

.card-body {
  padding: 20px;
}

.card-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.card-tag.red { background: rgba(200,40,46,0.15); color: var(--primary-light); border-left: 2px solid var(--primary); }
.card-tag.gold { background: rgba(212,160,23,0.15); color: var(--accent); border-left: 2px solid var(--accent); }
.card-tag.blue { background: rgba(21,103,200,0.15); color: #4d9ef0; border-left: 2px solid var(--info); }
.card-tag.green { background: rgba(26,140,78,0.15); color: #3ec87a; border-left: 2px solid var(--success); }

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

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

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 网格布局 ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* 不对称布局 */
.grid-asym-1 { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.grid-asym-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 24px; }
.grid-asym-3 { display: grid; grid-template-columns: 3fr 2fr; gap: 30px; }
.grid-asym-4 { display: grid; grid-template-columns: 2fr 3fr; gap: 30px; }

/* ===== 新闻卡片 - 不对称 ===== */
.news-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.news-card-featured {
  grid-row: 1 / 3;
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.news-card-featured:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.news-card-featured .news-img {
  height: 260px;
  background: linear-gradient(135deg, #1a0d0e, #0f0810);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  font-weight: 900;
  color: rgba(200,40,46,0.15);
  letter-spacing: -4px;
  overflow: hidden;
}

.news-card-featured .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card-featured .news-body {
  padding: 24px;
}

.news-card-small {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.news-card-small::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}

.news-card-small:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}
.news-card-small:hover::before {
  transform: scaleX(1);
}

.news-card-small .news-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-small .news-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.news-card-small .news-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-muted);
}

/* ===== 特性展示 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--border);
  border-bottom: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.feature-item:last-child { border-bottom: 1px solid var(--border); }

.feature-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: var(--transition);
}

.feature-item.active,
.feature-item:hover {
  background: var(--bg-card);
}
.feature-item.active::before,
.feature-item:hover::before {
  background: var(--primary);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(200,40,46,0.1);
  border: 1px solid rgba(200,40,46,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary-light);
}

.feature-text .title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.feature-text .desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-visual {
  position: sticky;
  top: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature-visual-inner {
  text-align: center;
  padding: 40px;
}

.feature-visual-icon {
  font-size: 100px;
  color: rgba(200,40,46,0.12);
  font-weight: 900;
  letter-spacing: -4px;
  display: block;
  margin-bottom: 20px;
}

/* ===== 数据统计 ===== */
.stats-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 40px;
}

.stats-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 30px 20px;
  border-right: 1px solid var(--border);
  position: relative;
}
.stat-item:last-child { border-right: none; }

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: transparent;
  transition: var(--transition);
}
.stat-item:hover::after {
  background: var(--primary);
}

.stat-number {
  font-size: 42px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 2px;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-unit {
  font-size: 16px;
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 2px;
}

/* ===== 下载区域 ===== */
.download-section {
  background: linear-gradient(135deg, var(--bg-card2) 0%, rgba(26,13,14,0.5) 100%);
  border: 1px solid var(--border);
  padding: 60px;
  position: relative;
  overflow: hidden;
}

.download-section::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(200,40,46,0.08);
  transform: rotate(45deg);
}

.download-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.platform-card {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.platform-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.platform-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.platform-card:hover::after { transform: scaleX(1); }

.platform-icon {
  font-size: 28px;
  line-height: 1;
}

.platform-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.platform-version {
  font-size: 12px;
  color: var(--text-muted);
}

.platform-size {
  font-size: 12px;
  color: var(--accent);
}

/* ===== 图库网格 ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 220px 220px;
  gap: 12px;
}

.gallery-item {
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-card2);
  position: relative;
}

.gallery-item:first-child {
  grid-row: 1 / 3;
}

.gallery-item img,
.gallery-item .gallery-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: rgba(200,40,46,0.15);
  font-weight: 900;
}

.gallery-item:hover .gallery-placeholder,
.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-title {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
}

/* ===== 底部 Footer ===== */
.footer {
  background: var(--bg-nav);
  border-top: 2px solid var(--primary);
  margin-top: 0;
}

.footer-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 60px 40px 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-brand .logo-box {
  width: 44px;
  height: 44px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
  color: #fff;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.footer-brand .brand-name {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 3px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul li a::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--border-light);
  transition: var(--transition);
  flex-shrink: 0;
}

.footer-col ul li a:hover {
  color: var(--text-primary);
}
.footer-col ul li a:hover::before {
  background: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 40px;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copyright {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.8;
}

.footer-copyright a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-copyright a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

.footer-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-links a {
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-secondary);
}

/* ===== 表单样式 ===== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.form-control {
  width: 100%;
  background: var(--bg-dark);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  border-radius: 0;
}

.form-control:focus {
  border-color: var(--primary);
  background: rgba(200,40,46,0.03);
  box-shadow: 0 0 0 2px rgba(200,40,46,0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238a93a8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* ===== 登录页面 ===== */
.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 480px;
  background: var(--bg-dark);
}

.login-visual {
  background: linear-gradient(135deg, #0a0c10 0%, #1a0d0e 100%);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 80px;
  position: relative;
  overflow: hidden;
}

.login-visual-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(30,37,53,0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,37,53,0.3) 1px, transparent 1px);
  background-size: 60px 60px;
}

.login-visual-content {
  position: relative;
  z-index: 2;
}

.login-visual .game-title {
  font-size: 64px;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.login-visual .game-title span {
  color: var(--primary);
}

.login-visual .game-tagline {
  font-size: 16px;
  color: var(--text-secondary);
  letter-spacing: 4px;
  margin-bottom: 40px;
}

.login-panel {
  background: var(--bg-card);
  border-left: 2px solid var(--primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 48px;
}

.login-title {
  font-size: 28px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.login-tabs {
  display: flex;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.login-tab {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  letter-spacing: 1px;
}

.login-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--primary);
}

.form-extra {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-size: 13px;
}

.form-extra a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}
.form-extra a:hover { color: var(--primary-light); }

.remember-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-muted);
}

.remember-check input {
  accent-color: var(--primary);
}

/* ===== 警告/提示框 ===== */
.alert {
  padding: 12px 16px;
  font-size: 13px;
  margin-bottom: 20px;
  border-left: 3px solid;
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert-error {
  background: rgba(200,40,46,0.08);
  border-color: var(--primary);
  color: #f07070;
}

.alert-success {
  background: rgba(26,140,78,0.08);
  border-color: var(--success);
  color: #3ec87a;
}

.alert-info {
  background: rgba(21,103,200,0.08);
  border-color: var(--info);
  color: #4d9ef0;
}

.alert-warning {
  background: rgba(200,122,0,0.08);
  border-color: var(--warning);
  color: #f0aa30;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 40px;
}

.page-item {
  display: flex;
}

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 600;
}

.page-link:hover,
.page-item.active .page-link {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}
.breadcrumb a:hover { color: var(--text-primary); }

.breadcrumb-sep {
  color: var(--border-light);
  font-size: 10px;
}

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

/* ===== 页面横幅 (子页面) ===== */
.page-banner {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 60px 40px 40px;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: attr(data-title);
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 100px;
  font-weight: 900;
  color: rgba(200,40,46,0.04);
  letter-spacing: -4px;
  pointer-events: none;
  white-space: nowrap;
}

.page-banner-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.page-banner h1 {
  font-size: 36px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 4px;
  margin-bottom: 12px;
}

.page-banner p {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ===== 侧边栏布局 ===== */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
}

.sidebar-widget-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.sidebar-widget-title::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--primary);
}

/* ===== 标签 ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  background: var(--bg-dark);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tag:hover,
.tag.active {
  background: rgba(200,40,46,0.1);
  border-color: var(--primary);
  color: var(--primary-light);
}

/* ===== 视频卡片 ===== */
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.video-thumb {
  position: relative;
  height: 180px;
  background: var(--bg-card2);
  overflow: hidden;
}

.video-thumb img,
.video-thumb .video-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: rgba(200,40,46,0.2);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  font-weight: 600;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 50px;
  height: 50px;
  background: rgba(200,40,46,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .video-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* ===== 社区帖子 ===== */
.post-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 24px;
  display: flex;
  gap: 20px;
  transition: var(--transition);
  cursor: pointer;
}

.post-item:hover {
  border-color: var(--border-light);
  background: var(--bg-card2);
}

.post-item + .post-item {
  border-top: none;
}

.post-avatar {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--bg-dark);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.post-content {
  flex: 1;
  min-width: 0;
}

.post-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.post-stats {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 攻略卡片 ===== */
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 24px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.guide-card::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: var(--transition);
}

.guide-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card2);
  transform: translateX(-2px);
}
.guide-card:hover::after {
  background: var(--accent);
}

.guide-category {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.guide-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.guide-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 问题反馈 ===== */
.feedback-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 40px;
}

.type-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 4px;
}

.type-option {
  padding: 12px;
  background: var(--bg-dark);
  border: 1px solid var(--border-light);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 13px;
  color: var(--text-secondary);
}

.type-option.active,
.type-option:hover {
  background: rgba(200,40,46,0.1);
  border-color: var(--primary);
  color: var(--text-primary);
}

/* ===== 版权声明/隐私政策 ===== */
.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px;
}

.legal-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 36px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--primary);
  letter-spacing: 2px;
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 14px;
}

.legal-content ul {
  margin-left: 20px;
  margin-bottom: 14px;
}

.legal-content ul li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 6px;
}

.legal-content ul li::marker {
  color: var(--primary);
}

/* ===== 合作伙伴 ===== */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: var(--transition);
  cursor: pointer;
  min-height: 120px;
}

.partner-card:hover {
  border-color: var(--primary);
  background: var(--bg-card2);
}

.partner-logo {
  width: 60px;
  height: 40px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.partner-name {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  font-weight: 600;
}

/* ===== 客服支持 ===== */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 30px;
}

.support-channels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.support-channel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: var(--transition);
  cursor: pointer;
}

.support-channel:hover {
  border-color: var(--primary);
  background: var(--bg-card2);
}

.support-icon {
  width: 44px;
  height: 44px;
  background: rgba(200,40,46,0.1);
  border: 1px solid rgba(200,40,46,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.support-info .channel-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.support-info .channel-value {
  font-size: 13px;
  color: var(--accent);
}

.support-info .channel-hours {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ===== 版本更新时间线 ===== */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border: 2px solid var(--bg-dark);
}

.timeline-dot.latest {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(212,160,23,0.5);
}

.timeline-date {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.timeline-version {
  display: inline-block;
  background: rgba(200,40,46,0.1);
  border: 1px solid rgba(200,40,46,0.3);
  color: var(--primary-light);
  font-size: 12px;
  padding: 2px 10px;
  font-weight: 700;
  margin-bottom: 12px;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 24px;
}

.timeline-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.timeline-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline-content ul li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.timeline-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  background: var(--primary);
}

/* ===== 游戏介绍 ===== */
.game-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 40px;
  align-items: start;
}

.game-intro-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.intro-nav-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 16px 20px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.intro-nav-item.active,
.intro-nav-item:hover {
  background: rgba(200,40,46,0.08);
  border-color: var(--primary);
  color: var(--text-primary);
}

.intro-nav-item.active::after,
.intro-nav-item:hover::after {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--primary);
  border-right: 1px solid var(--primary);
  transform: rotate(45deg);
}

/* ===== 移动端汉堡菜单 ===== */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-secondary);
  transition: var(--transition);
}

/* ===== 加载动画 ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card2) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

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

/* ===== 公告栏 ===== */
.notice-list .notice-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.notice-list .notice-item:last-child {
  border-bottom: none;
}

.notice-list .notice-item:hover .notice-title {
  color: var(--primary-light);
}

.notice-dot {
  width: 5px;
  height: 5px;
  background: var(--primary);
  flex-shrink: 0;
}

.notice-title {
  flex: 1;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.notice-date {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .navbar-menu li a {
    padding: 0 10px;
    font-size: 13px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 992px) {
  .navbar-menu { display: none; }
  .mobile-menu-toggle { display: flex; }
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-card-featured { grid-row: auto; grid-column: 1 / -1; }
  .game-intro-grid { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: 1fr; }
  .download-platforms { grid-template-columns: 1fr 1fr; }
  .content-with-sidebar { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .login-page { grid-template-columns: 1fr; }
  .login-visual { display: none; }
  .login-panel { padding: 40px 30px; }
}

@media (max-width: 768px) {
  .section { padding: 50px 20px; }
  .navbar { padding: 0 20px; }
  .hero { height: auto; padding: 80px 0 60px; }
  .hero-content { padding: 0 20px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .download-section { padding: 30px 20px; }
  .download-platforms { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .gallery-item:first-child { grid-row: auto; grid-column: 1 / -1; height: 200px; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; padding: 40px 20px 30px; }
  .footer-bottom { padding: 16px 20px; flex-direction: column; text-align: center; }
  .type-selector { grid-template-columns: repeat(2, 1fr); }
  .content-with-sidebar { padding: 20px; }
  .feedback-form { padding: 24px 20px; }
  .legal-content { padding: 24px 20px; }
  .page-banner { padding: 80px 20px 30px; }
  .page-banner h1 { font-size: 26px; }
}