/* ========================================
   星空体育 - 冰雪极光北欧风全站样式
   主色调: 极光绿#78e08f 深海蓝#273c75 冰川白#f5f6fa 桦木黄#fbc531
   ======================================== */

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

/* --- CSS 变量 --- */
:root {
  --aurora-green: #78e08f;
  --deep-blue: #273c75;
  --deep-blue-dark: #1a2a5e;
  --glacier-white: #f5f6fa;
  --birch-yellow: #fbc531;
  --text-light: #f5f6fa;
  --text-dark: #2c3e50;
  --card-bg: rgba(39, 60, 117, 0.85);
  --card-border: rgba(120, 224, 143, 0.3);
  --font-heading: 'Fjalla One', sans-serif;
  --font-body: 'Inter', sans-serif;
  --shadow-glow: 0 0 20px rgba(120, 224, 143, 0.3);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--deep-blue-dark);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --- 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;
}

/* --- 极光背景动画 --- */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #1a2a5e 0%, #273c75 30%, #1a3a4a 60%, #273c75 100%);
  overflow: hidden;
}

.aurora-bg::before,
.aurora-bg::after {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  opacity: 0.15;
  animation: auroraFlow 20s ease-in-out infinite;
}

.aurora-bg::before {
  background: radial-gradient(ellipse at 30% 50%, rgba(120, 224, 143, 0.4) 0%, transparent 60%);
  animation-delay: 0s;
}

.aurora-bg::after {
  background: radial-gradient(ellipse at 70% 30%, rgba(120, 224, 143, 0.3) 0%, transparent 50%);
  animation-delay: -10s;
}

@keyframes auroraFlow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(5%, -3%) rotate(2deg); }
  50% { transform: translate(-3%, 5%) rotate(-1deg); }
  75% { transform: translate(3%, 2%) rotate(1deg); }
}

/* --- 容器 --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- 导航栏 (非sticky) --- */
.main-nav {
  position: relative;
  background: rgba(26, 42, 94, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--card-border);
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  height: 45px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--aurora-green);
  color: var(--aurora-green);
  font-size: 24px;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0;
  flex-wrap: wrap;
}

.nav-menu li a {
  display: block;
  color: var(--glacier-white);
  text-decoration: none;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 4px;
  white-space: nowrap;
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--aurora-green);
  background: rgba(120, 224, 143, 0.1);
}

/* --- Hero 全屏视频模块 --- */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  max-height: 900px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(26, 42, 94, 0.6) 0%, rgba(26, 42, 94, 0.8) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
  animation: crystalForm 1.5s ease-out;
}

@keyframes crystalForm {
  0% { opacity: 0; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}

.hero-content .hero-logo {
  max-width: 300px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 30px rgba(120, 224, 143, 0.5));
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  margin-bottom: 15px;
  text-shadow: 0 0 40px rgba(120, 224, 143, 0.5);
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.btn-aurora {
  display: inline-block;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--aurora-green), #38b27a);
  color: var(--deep-blue);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  text-decoration: none;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 30px rgba(120, 224, 143, 0.4);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-aurora:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 50px rgba(120, 224, 143, 0.6);
}

.btn-yellow {
  background: linear-gradient(135deg, var(--birch-yellow), #e8a800);
}

.btn-yellow:hover {
  box-shadow: 0 0 50px rgba(251, 197, 49, 0.6);
}

.video-control {
  position: absolute;
  bottom: 30px;
  right: 30px;
  z-index: 3;
  background: rgba(39, 60, 117, 0.7);
  border: 1px solid var(--aurora-green);
  color: var(--aurora-green);
  padding: 10px 15px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.3s;
}

.video-control:hover {
  background: var(--aurora-green);
  color: var(--deep-blue);
}

/* --- 通用模块样式 --- */
.section-module {
  padding: 80px 0;
  position: relative;
}

.section-module:nth-child(even) {
  background: rgba(26, 42, 94, 0.3);
}

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

.section-title h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--glacier-white);
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2 span {
  color: var(--aurora-green);
}

.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--aurora-green);
  margin: 15px auto 0;
}

.section-title p {
  font-size: 1rem;
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
}

/* --- 品牌介绍模块 (维京石碑) --- */
.viking-stele {
  background: linear-gradient(135deg, rgba(60, 50, 40, 0.9), rgba(80, 65, 50, 0.8));
  border: 3px solid rgba(120, 224, 143, 0.3);
  border-radius: 20px;
  padding: 50px 40px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  box-shadow: var(--shadow-card);
}

.viking-stele::before {
  content: 'ᚱᚢᚾᛖ';
  position: absolute;
  top: 15px;
  left: 20px;
  font-size: 1.5rem;
  opacity: 0.2;
  color: var(--birch-yellow);
}

.viking-stele::after {
  content: 'ᛟᛞᛁᚾ';
  position: absolute;
  bottom: 15px;
  right: 20px;
  font-size: 1.5rem;
  opacity: 0.2;
  color: var(--birch-yellow);
}

.viking-stele h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--birch-yellow);
  margin-bottom: 20px;
  text-align: center;
}

.viking-stele h4 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--aurora-green);
  margin: 25px 0 12px;
  padding-left: 15px;
  border-left: 3px solid var(--aurora-green);
}

.viking-stele p {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 15px;
  color: var(--glacier-white);
  opacity: 0.9;
}

.viking-stele .brand-intro {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--birch-yellow);
  border-left: 3px solid var(--birch-yellow);
  padding-left: 15px;
  margin-bottom: 25px;
}

/* --- 极光赔率面板 --- */
.odds-panel {
  position: relative;
  padding: 60px 0;
  background: linear-gradient(180deg, rgba(26, 42, 94, 0.9) 0%, rgba(39, 60, 117, 0.7) 100%);
  overflow: hidden;
}

.odds-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center top, rgba(120, 224, 143, 0.15) 0%, transparent 70%);
  animation: auroraFlow 15s ease-in-out infinite;
}

.odds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  position: relative;
  z-index: 1;
}

.odds-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.odds-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.odds-card .match-time {
  font-size: 0.8rem;
  color: var(--birch-yellow);
  margin-bottom: 10px;
}

.odds-card .match-teams {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.odds-card .team {
  text-align: center;
  flex: 1;
}

.odds-card .team-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  display: block;
  margin-top: 5px;
}

.odds-card .vs {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--birch-yellow);
  padding: 0 10px;
}

.odds-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.odds-btn {
  background: rgba(120, 224, 143, 0.1);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 10px 5px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
}

.odds-btn:hover {
  background: rgba(120, 224, 143, 0.2);
  border-color: var(--aurora-green);
}

.odds-btn .label {
  font-size: 0.75rem;
  opacity: 0.7;
  display: block;
}

.odds-btn .value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--aurora-green);
}

.arrow-up {
  color: #78e08f;
  font-size: 0.8rem;
}

.arrow-down {
  color: #e74c3c;
  font-size: 0.8rem;
}

/* --- 雪道难度图鉴 --- */
.ski-trails {
  background: rgba(26, 42, 94, 0.5);
}

.trail-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.trail-tab {
  padding: 10px 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 30px;
  color: var(--glacier-white);
  cursor: pointer;
  transition: all 0.3s;
  font-size: 0.9rem;
}

.trail-tab:hover,
.trail-tab.active {
  background: var(--aurora-green);
  color: var(--deep-blue);
  border-color: var(--aurora-green);
}

.trail-content {
  display: none;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 30px;
  animation: crystalForm 0.5s ease;
}

.trail-content.active {
  display: block;
}

.trail-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.trail-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.stat-item {
  background: rgba(120, 224, 143, 0.1);
  border-radius: 12px;
  padding: 15px;
  text-align: center;
}

.stat-item .stat-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--aurora-green);
  display: block;
}

.stat-item .stat-label {
  font-size: 0.8rem;
  opacity: 0.7;
}

.difficulty-line {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  margin: 3px;
}

.difficulty-green { background: #27ae60; color: #fff; }
.difficulty-blue { background: #2980b9; color: #fff; }
.difficulty-black { background: #2c3e50; color: #fff; }

.trail-img {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  max-height: 300px;
}

/* --- 冰球战术板 --- */
.tactics-board {
  background: rgba(26, 42, 94, 0.4);
}

.tactics-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
}

.tactics-visual {
  background: linear-gradient(135deg, #1a5276, #2471a3);
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 30px;
  position: relative;
  min-height: 300px;
}

.rink-line {
  position: absolute;
  background: rgba(255, 255, 255, 0.2);
}

.rink-center {
  position: absolute;
  width: 80px;
  height: 80px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.player-dot {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: bold;
  color: #fff;
}

.player-red { background: #e74c3c; }
.player-blue { background: #3498db; }

.tactics-text h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--aurora-green);
  margin-bottom: 15px;
}

.tactics-text p {
  line-height: 1.8;
  margin-bottom: 15px;
  opacity: 0.9;
}

/* --- 六边形文章卡片 --- */
.hex-articles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.hex-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  transition: all 0.4s ease;
}

.hex-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
}

.hex-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.hex-card:hover img {
  transform: scale(1.1);
}

.hex-card .card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 25px 20px;
  background: linear-gradient(to top, rgba(26, 42, 94, 0.95) 0%, transparent 100%);
}

.hex-card .card-overlay h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--glacier-white);
  margin-bottom: 8px;
}

.hex-card .card-overlay p {
  font-size: 0.8rem;
  opacity: 0.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- 注册模块 --- */
.register-section {
  background: linear-gradient(135deg, rgba(39, 60, 117, 0.9), rgba(26, 42, 94, 0.95));
  position: relative;
  overflow: hidden;
}

.register-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.register-info h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--birch-yellow);
  margin-bottom: 20px;
}

.register-info p {
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 15px;
}

.register-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 35px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--aurora-green);
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(245, 246, 250, 0.1);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--glacier-white);
  font-size: 1rem;
  transition: border-color 0.3s;
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}

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

.form-checkbox label {
  font-size: 0.85rem;
  opacity: 0.8;
}

.btn-register {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--aurora-green), #38b27a);
  color: var(--deep-blue);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-register:hover {
  box-shadow: 0 0 30px rgba(120, 224, 143, 0.5);
  transform: translateY(-2px);
}

/* --- 负责任博彩 --- */
.responsible-gaming {
  background: rgba(26, 42, 94, 0.6);
}

.responsible-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.responsible-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s;
}

.responsible-card:hover {
  border-color: var(--aurora-green);
}

.responsible-card .icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  display: block;
}

.responsible-card h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--aurora-green);
  margin-bottom: 10px;
}

.responsible-card p {
  font-size: 0.9rem;
  opacity: 0.8;
  line-height: 1.6;
}

.age-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--birch-yellow), #e8a800);
  color: var(--deep-blue);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: bold;
  margin: 0 auto 20px;
  box-shadow: 0 0 20px rgba(251, 197, 49, 0.4);
}

/* --- SGA牌照模块 --- */
.license-section {
  text-align: center;
}

.license-block {
  background: linear-gradient(135deg, rgba(200, 230, 255, 0.1), rgba(120, 224, 143, 0.05));
  border: 2px solid rgba(120, 224, 143, 0.3);
  border-radius: 20px;
  padding: 50px 40px;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.license-block::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(120, 224, 143, 0.2), transparent, rgba(251, 197, 49, 0.2));
  z-index: -1;
}

.license-badge {
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--birch-yellow), #d4a800);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  box-shadow: 0 0 30px rgba(251, 197, 49, 0.3);
}

.license-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--birch-yellow);
  margin: 15px 0;
}

.license-text {
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* --- FAQ 冰洞问答 --- */
.faq-section {
  background: rgba(26, 42, 94, 0.5);
}

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

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--aurora-green);
}

.faq-question {
  padding: 20px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--glacier-white);
  transition: color 0.3s;
}

.faq-question:hover {
  color: var(--aurora-green);
}

.faq-question .faq-icon {
  color: var(--aurora-green);
  font-size: 1.2rem;
  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-answer-inner {
  padding: 0 25px 20px;
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.85;
  border-top: 1px solid var(--card-border);
  padding-top: 15px;
}

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

/* --- 页脚 --- */
.site-footer {
  background: rgba(15, 25, 60, 0.95);
  border-top: 2px solid var(--card-border);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--aurora-green);
  margin-bottom: 15px;
}

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

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

.footer-col ul li a {
  color: var(--glacier-white);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.7;
  transition: all 0.3s;
}

.footer-col ul li a:hover {
  opacity: 1;
  color: var(--aurora-green);
}

.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(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--glacier-white);
  text-decoration: none;
  font-size: 1.1rem;
  transition: all 0.3s;
}

.footer-social a:hover {
  background: var(--aurora-green);
  color: var(--deep-blue);
  border-color: var(--aurora-green);
}

.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 25px;
  text-align: center;
}

.footer-payments {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

.footer-payments span {
  background: rgba(245, 246, 250, 0.1);
  padding: 5px 15px;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--glacier-white);
  opacity: 0.8;
}

.footer-age {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--birch-yellow);
  color: var(--deep-blue);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 15px;
}

.footer-legal {
  font-size: 0.8rem;
  opacity: 0.6;
  line-height: 1.6;
}

.footer-legal a {
  color: var(--aurora-green);
  text-decoration: none;
}

/* --- 面包屑导航 --- */
.breadcrumb {
  padding: 15px 0;
  font-size: 0.85rem;
}

.breadcrumb a {
  color: var(--aurora-green);
  text-decoration: none;
}

.breadcrumb span {
  color: var(--glacier-white);
  opacity: 0.6;
  margin: 0 8px;
}

/* --- 内页通用样式 --- */
.page-hero {
  position: relative;
  height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-hero img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(26, 42, 94, 0.5), rgba(26, 42, 94, 0.85));
}

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

.page-hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  text-shadow: 0 0 30px rgba(120, 224, 143, 0.4);
}

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

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

.content-article h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--aurora-green);
  margin: 40px 0 15px;
}

.content-article h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--birch-yellow);
  margin: 30px 0 12px;
}

.content-article p {
  margin-bottom: 18px;
  line-height: 1.9;
  font-size: 1rem;
  opacity: 0.9;
}

.content-article img {
  width: 100%;
  border-radius: 12px;
  margin: 20px 0;
}

.content-article .info-box {
  background: var(--card-bg);
  border-left: 4px solid var(--aurora-green);
  border-radius: 0 12px 12px 0;
  padding: 20px 25px;
  margin: 25px 0;
}

.content-article .info-box h4 {
  font-family: var(--font-heading);
  color: var(--aurora-green);
  margin-bottom: 10px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 25px 0;
}

.content-grid img {
  width: 100%;
  border-radius: 12px;
  aspect-ratio: 16/10;
  object-fit: cover;
}

/* --- 作者信息 --- */
.author-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 25px;
  margin: 30px 0;
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--aurora-green), var(--deep-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.author-info h4 {
  font-family: var(--font-heading);
  color: var(--aurora-green);
  margin-bottom: 5px;
}

.author-info .author-title {
  font-size: 0.85rem;
  color: var(--birch-yellow);
  margin-bottom: 8px;
}

.author-info p {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 0;
}

/* --- APP下载页 --- */
.app-download-hero {
  background: linear-gradient(135deg, rgba(39, 60, 117, 0.95), rgba(26, 42, 94, 0.9));
  padding: 80px 0;
  text-align: center;
}

.app-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin: 40px 0;
}

.app-feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s;
}

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

.app-feature-card .feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  display: block;
}

.app-feature-card h4 {
  font-family: var(--font-heading);
  color: var(--aurora-green);
  margin-bottom: 10px;
}

.app-qr-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 700px;
  margin: 40px auto;
}

.qr-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 20px;
  padding: 30px;
  text-align: center;
}

.qr-card h4 {
  font-family: var(--font-heading);
  color: var(--birch-yellow);
  margin-bottom: 15px;
  font-size: 1.2rem;
}

.qr-placeholder {
  width: 150px;
  height: 150px;
  background: var(--glacier-white);
  border-radius: 12px;
  margin: 0 auto 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--deep-blue);
  font-size: 0.9rem;
  font-weight: bold;
}

.download-steps {
  max-width: 700px;
  margin: 40px auto;
}

.step-item {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
  align-items: flex-start;
}

.step-number {
  width: 45px;
  height: 45px;
  background: var(--aurora-green);
  color: var(--deep-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-family: var(--font-heading);
  color: var(--aurora-green);
  margin-bottom: 5px;
}

.step-content p {
  font-size: 0.9rem;
  opacity: 0.85;
  line-height: 1.6;
}

/* --- 雪花动画 --- */
@keyframes snowfall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100px) rotate(360deg); opacity: 0; }
}

.snowflake {
  position: absolute;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  animation: snowfall 3s linear infinite;
  pointer-events: none;
}

/* --- 响应式设计 --- */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hex-articles {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .register-container,
  .tactics-container,
  .trail-info {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(26, 42, 94, 0.98);
    border-top: 1px solid var(--card-border);
    padding: 10px 0;
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .nav-menu li a {
    padding: 12px 20px;
  }
  
  .nav-inner {
    flex-wrap: wrap;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-section {
    min-height: 400px;
    max-height: 600px;
  }
  
  .section-title h2 {
    font-size: 1.6rem;
  }
  
  .hex-articles {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .odds-grid {
    grid-template-columns: 1fr;
  }
  
  .app-qr-section {
    grid-template-columns: 1fr;
  }
  
  .viking-stele {
    padding: 30px 20px;
  }
  
  .page-hero {
    height: 250px;
  }
  
  .page-hero-content h1 {
    font-size: 1.8rem;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .trail-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-content h1 {
    font-size: 1.6rem;
  }
  
  .btn-aurora {
    padding: 12px 30px;
    font-size: 1rem;
  }
  
  .section-module {
    padding: 50px 0;
  }
  
  .container {
    padding: 0 15px;
  }
}

/* --- 懒加载占位 --- */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s;
}

img[loading="lazy"].loaded,
img.loaded {
  opacity: 1;
}

/* --- 打印样式 --- */
@media print {
  .aurora-bg,
  .main-nav,
  .site-footer {
    display: none;
  }
}