/* ============================================
   C7娱乐 - 极速赛车机械风 全局样式表
   碳纤维黑 #1c1c1c | 法拉利红 #dc143c
   银灰 #c0c0c0 | 赛道白 #f8f8ff
   ============================================ */

/* --- Google Fonts 引入 --- */
@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Barlow+Condensed:wght@300;400;500;600;700&display=swap');

/* --- CSS 变量 --- */
:root {
  --carbon-black: #1c1c1c;
  --ferrari-red: #dc143c;
  --silver: #c0c0c0;
  --track-white: #f8f8ff;
  --dark-gray: #282828;
  --metal-gray: #3a3a3a;
  --gold: #ffd700;
  --green-up: #00c853;
  --red-down: #ff1744;
  --font-heading: 'Rajdhani', 'Microsoft YaHei', sans-serif;
  --font-body: 'Barlow Condensed', 'Microsoft YaHei', sans-serif;
  --max-width: 1280px;
  --transition-fast: 0.2s ease;
  --transition-shift: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- 重置与基础 --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  lang: zh-CN;
}

body {
  font-family: var(--font-body);
  background-color: var(--carbon-black);
  color: var(--track-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 碳纤维纹理背景 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 4px,
      rgba(255,255,255,0.015) 4px,
      rgba(255,255,255,0.015) 8px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 4px,
      rgba(255,255,255,0.015) 4px,
      rgba(255,255,255,0.015) 8px
    );
  pointer-events: none;
  z-index: 0;
}

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

a {
  color: var(--ferrari-red);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--track-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--track-white);
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.3rem; }

p {
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* --- 干扰标签隐藏 --- */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

/* ============================================
   导航栏（非Sticky）
   ============================================ */
.main-nav {
  background: linear-gradient(180deg, #222 0%, var(--carbon-black) 100%);
  border-bottom: 3px solid var(--ferrari-red);
  padding: 0;
  position: relative;
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  flex-wrap: wrap;
}

.nav-logo img {
  height: 50px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--silver);
  color: var(--track-white);
  font-size: 1.5rem;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 4px;
}

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

.nav-menu li a {
  display: block;
  padding: 12px 16px;
  color: var(--silver);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--track-white);
  border-bottom-color: var(--ferrari-red);
  background: rgba(220, 20, 60, 0.1);
}

/* ============================================
   Hero 全屏视频模块
   ============================================ */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--carbon-black);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(28,28,28,0.3) 0%,
    rgba(28,28,28,0.7) 60%,
    rgba(28,28,28,0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
}

.hero-content .hero-logo {
  max-width: 300px;
  margin: 0 auto 30px;
  filter: drop-shadow(0 0 20px rgba(220,20,60,0.5));
}

.hero-content h1 {
  font-size: 3.5rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 15px;
  text-shadow: 0 0 30px rgba(220,20,60,0.6);
}

.hero-content .hero-subtitle {
  font-size: 1.4rem;
  color: var(--silver);
  margin-bottom: 40px;
  letter-spacing: 2px;
}

/* 赛车启动按钮 */
.cta-engine-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, #ff2244 0%, #dc143c 50%, #8b0000 100%);
  color: var(--track-white);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
  border: 4px solid var(--silver);
  box-shadow: 0 0 30px rgba(220,20,60,0.6), inset 0 0 20px rgba(0,0,0,0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  animation: enginePulse 2s infinite;
}

.cta-engine-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 60px rgba(220,20,60,0.9), inset 0 0 30px rgba(0,0,0,0.3);
  color: var(--track-white);
}

@keyframes enginePulse {
  0%, 100% { box-shadow: 0 0 30px rgba(220,20,60,0.6), inset 0 0 20px rgba(0,0,0,0.3); }
  50% { box-shadow: 0 0 50px rgba(220,20,60,0.8), inset 0 0 20px rgba(0,0,0,0.3); }
}

/* ============================================
   通用模块样式
   ============================================ */
.section {
  padding: 60px 0;
  position: relative;
  z-index: 1;
}

.section-dark {
  background: var(--carbon-black);
}

.section-darker {
  background: #141414;
}

.section-metal {
  background: linear-gradient(135deg, #222 0%, #2a2a2a 50%, #1e1e1e 100%);
  border-top: 1px solid var(--metal-gray);
  border-bottom: 1px solid var(--metal-gray);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  display: inline-block;
  position: relative;
  padding-bottom: 15px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--ferrari-red);
  border-radius: 2px;
}

.section-title h2 span {
  color: var(--ferrari-red);
}

.section-title p {
  color: var(--silver);
  font-size: 1.1rem;
  margin-top: 15px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   仪表盘模块化卡片
   ============================================ */
.dashboard-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  justify-content: center;
}

.dash-card {
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border: 1px solid var(--metal-gray);
  border-radius: 12px;
  padding: 30px;
  flex: 1 1 300px;
  max-width: 400px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-shift), box-shadow var(--transition-shift);
}

.dash-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--ferrari-red), transparent);
}

.dash-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(220,20,60,0.2);
}

.dash-card h3 {
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.dash-card p {
  color: var(--silver);
  font-size: 0.95rem;
}

.dash-card img {
  border-radius: 8px;
  margin-bottom: 15px;
  width: 100%;
}

/* ============================================
   时间轴模块
   ============================================ */
.timeline-section {
  padding: 60px 0;
}

.timeline-track {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--silver);
  transform: translateY(-50%);
}

.timeline-nodes {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.timeline-node {
  text-align: center;
  flex: 1;
  position: relative;
  padding: 0 10px;
}

.timeline-dot {
  width: 40px;
  height: 40px;
  background: var(--ferrari-red);
  border: 3px solid var(--silver);
  border-radius: 50%;
  margin: 0 auto 15px;
  position: relative;
  z-index: 2;
  transition: transform 0.3s ease;
}

.timeline-node:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 20px rgba(220,20,60,0.6);
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ferrari-red);
  margin-bottom: 8px;
}

.timeline-label {
  font-size: 0.95rem;
  color: var(--silver);
}

.timeline-desc {
  font-size: 0.85rem;
  color: #888;
  margin-top: 8px;
  display: none;
}

.timeline-node:hover .timeline-desc {
  display: block;
}

/* ============================================
   倒计时模块
   ============================================ */
.countdown-section {
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  text-align: center;
}

.countdown-display {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.countdown-unit {
  background: linear-gradient(145deg, #333, #1a1a1a);
  border: 2px solid var(--ferrari-red);
  border-radius: 12px;
  padding: 20px 25px;
  min-width: 100px;
  text-align: center;
}

.countdown-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--ferrari-red);
  line-height: 1;
  display: block;
}

.countdown-label {
  font-size: 0.85rem;
  color: var(--silver);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   赔率仪表盘
   ============================================ */
.odds-grid {
  display: flex;
  gap: 25px;
  justify-content: center;
  flex-wrap: wrap;
}

.odds-gauge {
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border: 2px solid var(--metal-gray);
  border-radius: 50%;
  width: 260px;
  height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.3s ease;
}

.odds-gauge::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border-radius: 50%;
  border: 2px solid var(--ferrari-red);
  opacity: 0.5;
}

.odds-gauge:hover {
  box-shadow: 0 0 30px rgba(220,20,60,0.3);
  transform: scale(1.05);
}

.odds-event {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--silver);
  margin-bottom: 8px;
}

.odds-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--track-white);
}

.odds-trend {
  font-size: 1.2rem;
  margin-top: 5px;
}

.odds-trend.up { color: var(--green-up); }
.odds-trend.down { color: var(--red-down); }

.odds-teams {
  font-size: 0.85rem;
  color: #999;
  margin-top: 5px;
}

.odds-btn {
  display: inline-block;
  margin-top: 12px;
  padding: 6px 18px;
  background: var(--ferrari-red);
  color: var(--track-white);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.3s;
}

.odds-btn:hover {
  background: #ff2244;
  color: var(--track-white);
}

/* ============================================
   文章卡片
   ============================================ */
.articles-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  justify-content: center;
}

.article-card {
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border: 1px solid var(--metal-gray);
  border-radius: 12px;
  overflow: hidden;
  flex: 1 1 340px;
  max-width: 380px;
  transition: transform var(--transition-shift), box-shadow var(--transition-shift);
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(220,20,60,0.15);
}

.article-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.article-tag {
  display: inline-block;
  background: var(--ferrari-red);
  color: var(--track-white);
  padding: 3px 12px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.article-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-card p {
  color: var(--silver);
  font-size: 0.9rem;
  line-height: 1.6;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--metal-gray);
}

.article-author img {
  width: 35px;
  height: 35px;
  border-radius: 50%;
}

.article-author-info {
  font-size: 0.8rem;
  color: #999;
}

/* ============================================
   注册模块
   ============================================ */
.register-section {
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  position: relative;
}

.register-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(28,28,28,0.85);
}

.register-grid {
  display: flex;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}

.register-info {
  flex: 1 1 400px;
}

.register-info h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.register-info h2 span {
  color: var(--ferrari-red);
}

.register-form-wrap {
  flex: 1 1 350px;
  max-width: 450px;
}

.register-form {
  background: rgba(40,40,40,0.9);
  border: 1px solid var(--metal-gray);
  border-radius: 12px;
  padding: 30px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--silver);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 12px 15px;
  background: #1a1a1a;
  border: 1px solid var(--metal-gray);
  border-radius: 6px;
  color: var(--track-white);
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--ferrari-red);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--silver);
  margin-bottom: 18px;
}

.form-checkbox input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--ferrari-red);
}

.btn-primary {
  display: inline-block;
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #dc143c, #ff2244);
  color: var(--track-white);
  border: none;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff2244, #ff4466);
  box-shadow: 0 5px 25px rgba(220,20,60,0.4);
  transform: translateY(-2px);
}

/* ============================================
   FAQ 维修区
   ============================================ */
.faq-section {
  padding: 60px 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: linear-gradient(145deg, #2a2a2a, #1e1e1e);
  border: 1px solid var(--metal-gray);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:hover {
  border-color: var(--ferrari-red);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--track-white);
  transition: background 0.3s;
}

.faq-question:hover {
  background: rgba(220,20,60,0.1);
}

.faq-icon {
  width: 30px;
  height: 30px;
  background: var(--ferrari-red);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 22px 20px;
  color: var(--silver);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ============================================
   KGC 牌照模块
   ============================================ */
.kgc-section {
  text-align: center;
  padding: 60px 0;
}

.kgc-badge {
  max-width: 250px;
  margin: 0 auto 25px;
  filter: drop-shadow(0 0 15px rgba(255,215,0,0.3));
}

.kgc-license {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--gold);
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.kgc-text {
  max-width: 700px;
  margin: 0 auto;
  color: var(--silver);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ============================================
   负责任博彩
   ============================================ */
.responsible-section {
  padding: 60px 0;
  text-align: center;
}

.responsible-icons {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.responsible-icon-item {
  text-align: center;
  max-width: 150px;
}

.responsible-icon-item img {
  width: 60px;
  height: 60px;
  margin: 0 auto 10px;
}

.responsible-icon-item span {
  display: block;
  font-size: 0.9rem;
  color: var(--silver);
}

/* ============================================
   教程模块
   ============================================ */
.tutorial-steps {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

.tutorial-step {
  text-align: center;
  flex: 1 1 200px;
  max-width: 250px;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--ferrari-red);
  border: 3px solid var(--silver);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 auto 15px;
  color: var(--track-white);
}

.tutorial-step h4 {
  margin-bottom: 8px;
}

.tutorial-step p {
  color: var(--silver);
  font-size: 0.9rem;
}

.step-arrow {
  position: absolute;
  top: 30px;
  right: -25px;
  color: var(--ferrari-red);
  font-size: 1.5rem;
}

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumb {
  padding: 15px 0;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--silver);
}

.breadcrumb a:hover {
  color: var(--ferrari-red);
}

.breadcrumb span {
  color: #666;
  margin: 0 8px;
}

.breadcrumb .current {
  color: var(--track-white);
}

/* ============================================
   内页通用
   ============================================ */
.page-hero {
  padding: 80px 0 40px;
  text-align: center;
  background: linear-gradient(180deg, #222 0%, var(--carbon-black) 100%);
  border-bottom: 3px solid var(--ferrari-red);
}

.page-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.page-hero p {
  color: var(--silver);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.content-section {
  padding: 50px 0;
}

.content-body {
  max-width: 900px;
  margin: 0 auto;
}

.content-body h2 {
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ferrari-red);
}

.content-body h3 {
  margin: 30px 0 15px;
  color: var(--ferrari-red);
}

.content-body p {
  color: var(--silver);
  line-height: 1.9;
  margin-bottom: 18px;
}

.content-body ul, .content-body ol {
  color: var(--silver);
  padding-left: 25px;
  margin-bottom: 18px;
}

.content-body li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.content-img {
  border-radius: 12px;
  border: 1px solid var(--metal-gray);
  margin: 25px 0;
  width: 100%;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
}

.info-table th,
.info-table td {
  padding: 12px 15px;
  text-align: left;
  border: 1px solid var(--metal-gray);
}

.info-table th {
  background: var(--ferrari-red);
  color: var(--track-white);
  font-family: var(--font-heading);
  font-weight: 600;
}

.info-table td {
  background: #222;
  color: var(--silver);
}

.info-table tr:hover td {
  background: #2a2a2a;
}

/* meter 和 progress 元素 */
meter, progress {
  width: 100%;
  height: 20px;
  border-radius: 10px;
  overflow: hidden;
  margin: 10px 0;
}

meter::-webkit-meter-bar {
  background: #333;
  border-radius: 10px;
}

meter::-webkit-meter-optimum-value {
  background: linear-gradient(90deg, var(--ferrari-red), #ff4466);
  border-radius: 10px;
}

progress::-webkit-progress-bar {
  background: #333;
  border-radius: 10px;
}

progress::-webkit-progress-value {
  background: linear-gradient(90deg, var(--ferrari-red), #ff4466);
  border-radius: 10px;
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  background: #111;
  border-top: 3px solid var(--ferrari-red);
  padding: 50px 0 20px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col {
  flex: 1 1 200px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--track-white);
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ferrari-red);
  display: inline-block;
}

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

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

.footer-col ul li a {
  color: var(--silver);
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: var(--ferrari-red);
}

.footer-social {
  display: flex;
  gap: 15px;
  margin-top: 10px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--dark-gray);
  border: 1px solid var(--metal-gray);
  border-radius: 50%;
  color: var(--silver);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 0.3s;
}

.footer-social a:hover {
  background: var(--ferrari-red);
  color: var(--track-white);
  border-color: var(--ferrari-red);
}

.footer-payment {
  margin-top: 15px;
}

.footer-payment img {
  max-width: 100%;
}

.footer-bottom {
  border-top: 1px solid var(--metal-gray);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}

.footer-bottom p {
  color: #666;
  font-size: 0.8rem;
  margin: 0;
}

.footer-age-badge {
  width: 50px;
  height: 50px;
}

/* ============================================
   APP下载页
   ============================================ */
.app-hero {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(180deg, #1a1a2e 0%, var(--carbon-black) 100%);
}

.app-features {
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 40px 0;
}

.app-feature-card {
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border: 1px solid var(--metal-gray);
  border-radius: 12px;
  padding: 25px;
  flex: 1 1 250px;
  max-width: 300px;
  text-align: center;
  transition: transform 0.3s;
}

.app-feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--ferrari-red);
}

.app-feature-card h4 {
  margin: 15px 0 10px;
  color: var(--ferrari-red);
}

.app-qr-section {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 40px 0;
}

.app-qr-item {
  text-align: center;
}

.app-qr-item img {
  width: 200px;
  height: auto;
  margin-bottom: 10px;
}

.app-qr-item h4 {
  color: var(--track-white);
}

/* ============================================
   动画效果
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 速度指针动画 */
@keyframes needleSweep {
  0% { transform: rotate(-135deg); }
  100% { transform: rotate(45deg); }
}

/* 换挡切换动画 */
@keyframes gearShift {
  0% { transform: translateX(-20px); opacity: 0; }
  100% { transform: translateX(0); opacity: 1; }
}

.gear-shift-in {
  animation: gearShift 0.4s ease forwards;
}

/* 引擎轰鸣发光 */
.engine-glow:hover {
  box-shadow: 0 0 30px rgba(220,20,60,0.6);
  text-shadow: 0 0 10px rgba(220,20,60,0.8);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  .hero-content h1 { font-size: 2.8rem; }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    background: #222;
    border-top: 1px solid var(--metal-gray);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li a {
    padding: 14px 20px;
    border-bottom: 1px solid #333;
  }

  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content .hero-subtitle {
    font-size: 1rem;
  }

  .cta-engine-btn {
    width: 120px;
    height: 120px;
    font-size: 0.9rem;
  }

  .countdown-number {
    font-size: 2rem;
  }

  .countdown-unit {
    min-width: 70px;
    padding: 15px;
  }

  .odds-gauge {
    width: 200px;
    height: 200px;
  }

  .odds-value {
    font-size: 1.8rem;
  }

  .register-grid {
    flex-direction: column;
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: 40px 0;
  }

  .step-arrow {
    display: none;
  }

  .timeline-nodes {
    flex-direction: column;
    gap: 30px;
  }

  .timeline-track::before {
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    transform: translateX(-50%);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero-section {
    min-height: 500px;
  }

  .hero-content h1 {
    font-size: 1.6rem;
  }

  .dash-card {
    padding: 20px;
  }

  .article-card img {
    height: 160px;
  }

  .odds-gauge {
    width: 160px;
    height: 160px;
  }

  .odds-value {
    font-size: 1.4rem;
  }

  .odds-event {
    font-size: 0.85rem;
  }
}

/* ============================================
   打印样式
   ============================================ */
@media print {
  body::before { display: none; }
  .main-nav, .site-footer { display: none; }
  body { background: white; color: black; }
}