/* ============================================
   西兰卡普 - 土家族织锦网页设计
   基于国家级非遗传承网站设计规范
   ============================================ */

/* CSS Variables */
:root {
  /* 主色调 */
  --primary-navy: #1a2a4a;
  --primary-navy-dark: #0d1a2d;
  --primary-navy-light: #2a3a5a;
  
  /* 背景色 */
  --bg-cream: #f8f6f0;
  --bg-light: #fffef9;
  --bg-warm: #faf8f3;
  
  /* 点缀色 */
  --accent-red: #c41e3a;
  --accent-gold: #c9a227;
  --accent-gold-light: #e8c84a;
  
  /* 织物色彩 */
  --fabric-red: #b22234;
  --fabric-blue: #1e3a5f;
  --fabric-black: #1a1a1a;
  --fabric-green: #2d5a3d;
  --fabric-gold: #d4a84b;
  
  /* 文字色 */
  --text-dark: #2c2c2c;
  --text-light: #5a5a5a;
  --text-muted: #8a8a8a;
  --text-white: #ffffff;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;
  
  /* 字体 */
  --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  
  /* 过渡 */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-cream);
  color: var(--text-dark);
  line-height: 1.8;
  font-size: 16px;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ============================================
   导航栏
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--primary-navy);
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5L35 15L30 25L25 15L30 5ZM30 35L35 45L30 55L25 45L30 35ZM5 30L15 25L25 30L15 35L5 30ZM35 30L45 25L55 30L45 35L35 30Z' fill='%23ffffff' fill-opacity='0.03'/%3E%3C/svg%3E");
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-md);
  max-width: 1600px;
  margin: 0 auto;
  height: 56px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.logo-pattern {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--fabric-red), var(--fabric-blue));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-pattern::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 4px,
    rgba(255,255,255,0.1) 4px,
    rgba(255,255,255,0.1) 8px
  );
}

.logo-pattern-icon {
  font-size: 1.5rem;
  color: var(--accent-gold-light);
  z-index: 1;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.logo-text h1 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--text-white);
  letter-spacing: 0.15em;
  font-weight: 600;
  line-height: 1.2;
}

.logo-text p {
  font-size: 0.6rem;
  color: var(--accent-gold-light);
  letter-spacing: 0.08em;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  gap: 0.3rem;
  list-style: none;
  align-items: center;
}

.nav-links > li {
  position: relative;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 8px 14px;
  position: relative;
  transition: var(--transition);
  letter-spacing: 0.05em;
  white-space: nowrap;
  line-height: 1.4;
  display: block;
  border-radius: 4px;
}

.nav-links a .arrow {
  font-size: 0.6rem;
  margin-left: 4px;
  opacity: 0.7;
  transition: var(--transition);
}

.nav-links > li:hover > a {
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-links > li:hover > a .arrow {
  transform: rotate(180deg);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--accent-gold);
  transition: var(--transition);
  transform: scaleX(0);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-links a:hover {
  color: var(--text-white);
}

/* 下拉菜单 */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 140px;
  background: var(--primary-navy);
  border-radius: 8px;
  padding: 8px 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 100;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  padding: 10px 20px;
  font-size: 0.8rem;
  border-radius: 0;
  color: rgba(255, 255, 255, 0.85);
}

.dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
}

.dropdown-menu a::after {
  display: none;
}

.nav-right {
  display: flex;
  align-items: center;
}

.nav-contact {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent-gold), #d4a84b);
  border: none;
  color: var(--primary-navy);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 20px;
  transition: var(--transition);
  letter-spacing: 0.05em;
  box-shadow: 0 2px 10px rgba(201, 162, 39, 0.3);
}

.nav-contact:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(201, 162, 39, 0.4);
  background: linear-gradient(135deg, #d4a84b, var(--accent-gold-light));
}

/* ============================================
   页面主视觉 Banner
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--bg-cream) 0%, var(--bg-light) 100%);
  padding-top: 70px;
  overflow: hidden;
  position: relative;
}

/* 轮播容器 */
.hero-slides {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
}

/* 水墨背景 */
.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  opacity: 0.15;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 900'%3E%3Cpath fill='%231a2a4a' d='M0 600 Q200 400 400 500 T800 450 T1200 500 L1440 480 L1440 900 L0 900 Z'/%3E%3Cpath fill='%231a2a4a' opacity='0.5' d='M0 700 Q300 550 600 600 T1200 580 L1440 600 L1440 900 L0 900 Z'/%3E%3C/svg%3E") no-repeat right bottom;
  background-size: cover;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.hero-left {
  padding-right: var(--spacing-2xl);
  overflow: hidden;
  max-width: 100%;
}

/* 竖排文字 */
.vertical-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 0.85rem;
  color: var(--text-light);
  letter-spacing: 0.2em;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.vertical-text span {
  color: var(--accent-red);
  font-weight: 600;
}

.diamond-divider {
  width: 12px;
  height: 12px;
  background: var(--accent-gold);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--primary-navy);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.1em;
}

.hero-title .highlight {
  display: block;
  font-size: 4.5rem;
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: var(--spacing-xs);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.badge-text {
  padding: 4px 16px;
  background: var(--accent-red);
  color: var(--text-white);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50px;
  letter-spacing: 0.1em;
}

.hero-subtitle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.1em;
}

.hero-subtitle .diamond {
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: var(--spacing-xl);
  max-width: 420px;
  padding-right: var(--spacing-lg);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 14px 32px;
  background: transparent;
  border: 2px solid var(--primary-navy);
  color: var(--primary-navy);
  font-size: 1rem;
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 0.1em;
}

.hero-btn:hover {
  background: var(--primary-navy);
  color: var(--text-white);
}

.hero-btn svg {
  width: 20px;
  height: 20px;
  transition: var(--transition);
}

.hero-btn:hover svg {
  transform: translateX(5px);
}

/* 页码指示器 */
.page-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 10;
}

.page-number {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-navy);
}

.page-number span {
  color: var(--text-muted);
  font-weight: 400;
}

.page-dots {
  display: flex;
  gap: 8px;
}

.page-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(26, 42, 74, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

.page-dot.active {
  background: var(--accent-red);
  width: 24px;
  border-radius: 5px;
}

/* 轮播幻灯片 */
.hero-slides {
  width: 100%;
  position: relative;
}

.hero-slide {
  display: none;
  animation: fadeIn 0.5s ease;
}

.hero-slide.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 左右切换箭头 */
.slide-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.slide-arrow:hover {
  background: var(--primary-navy);
  color: var(--text-white);
}

.slide-arrow svg {
  width: 24px;
  height: 24px;
}

.slide-prev {
  left: 30px;
}

.slide-next {
  right: 30px;
}

.slide-arrow:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Hero Right - 织物展示 */
.hero-right {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.fabric-showcase {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.fabric-main {
  width: 100%;
  height: 450px;
  background: var(--bg-light);
  background-size: cover;
  background-position: left center;
  background-repeat: no-repeat;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.fabric-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 8px,
      rgba(255,255,255,0.03) 8px,
      rgba(255,255,255,0.03) 16px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 8px,
      rgba(0,0,0,0.03) 8px,
      rgba(0,0,0,0.03) 16px
    );
  z-index: 1;
}

.fabric-texture {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 8rem;
  color: rgba(255, 255, 255, 0.3);
  z-index: 2;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* 装饰牌匾 */
.fabric-plaque {
  position: absolute;
  top: -20px;
  right: -30px;
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-dark));
  padding: 20px 30px;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.fabric-plaque::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  right: 4px;
  bottom: 4px;
  border: 1px solid var(--accent-gold);
  border-radius: 6px;
}

.plaque-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--accent-gold);
  letter-spacing: 0.2em;
  margin-bottom: 4px;
}

.plaque-subtitle {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.1em;
}

/* ============================================
   特色优势区
   ============================================ */
.features {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-warm);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--bg-light);
  padding: var(--spacing-xl) var(--spacing-lg);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.feature-icon::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid var(--accent-gold);
  border-radius: 50%;
  opacity: 0.5;
}

.feature-icon svg {
  width: 36px;
  height: 36px;
  fill: var(--text-white);
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.1em;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.feature-link {
  font-size: 0.85rem;
  color: var(--accent-red);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.feature-link:hover {
  color: var(--primary-navy);
  gap: 8px;
}

/* ============================================
   内容探索区
   ============================================ */
.explore {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-cream);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.section-title .diamond {
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.explore-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
}

.explore-card {
  background: var(--bg-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.explore-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.explore-image {
  width: 100%;
  height: 180px;
  background: var(--bg-light);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.explore-image::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 6px,
      rgba(255,255,255,0.02) 6px,
      rgba(255,255,255,0.02) 12px
    );
  z-index: 1;
}

.explore-icon {
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.5);
  z-index: 2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.play-btn svg {
  width: 20px;
  height: 20px;
  fill: var(--primary-navy);
  margin-left: 3px;
}

.explore-content {
  padding: var(--spacing-md);
  background: var(--primary-navy);
}

.explore-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text-white);
  letter-spacing: 0.05em;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--primary-navy);
  color: var(--text-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 400px;
}

.footer-slogan {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--accent-gold);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.15em;
}

.footer-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--accent-gold);
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: var(--text-white);
}

.footer-section h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--accent-gold);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.1em;
}

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

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-qr {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.qr-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.qr-box {
  width: 60px;
  height: 60px;
  background: var(--text-white);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.qr-text {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   子页面通用样式
   ============================================ */
.page-hero {
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: linear-gradient(135deg, var(--bg-cream), var(--bg-light));
  padding-top: 70px;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--primary-navy));
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.2em;
}

.page-hero-subtitle {
  font-size: 1rem;
  color: var(--text-light);
  letter-spacing: 0.1em;
}

/* 内容区块 */
.content-section {
  padding: var(--spacing-2xl) 0;
}

.content-section.alt {
  background: var(--bg-warm);
}

.section-intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  text-align: center;
}

.section-intro p {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 2;
}

/* 卡片 */
.card {
  background: var(--bg-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.card-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--primary-navy), var(--fabric-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.card-image::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 8px,
    rgba(255,255,255,0.03) 8px,
    rgba(255,255,255,0.03) 16px
  );
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-icon {
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.2);
  z-index: 1;
}

/* 历史传承页面卡片图片 */
.history-card-image {
  height: auto !important;
  min-height: auto !important;
  background: none !important;
}

.history-card-image::before {
  display: none;
}

.history-card-image img {
  width: 100%;
  height: auto;
  display: block;
}

.history-card-image .card-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.4);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.history-card-image-large img {
  width: 100%;
  height: auto;
  display: block;
}

.card-content {
  padding: var(--spacing-lg);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.05em;
}

.card-text {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* 时间线 */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-gold), var(--primary-navy), var(--fabric-blue));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  display: flex;
  align-items: center;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 42%;
  padding: var(--spacing-lg);
  background: var(--bg-light);
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--accent-gold);
  border: 4px solid var(--bg-cream);
  border-radius: 50%;
  z-index: 1;
}

.timeline-year {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--accent-red);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.1em;
}

.timeline-title {
  font-size: 1.1rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* 工艺步骤 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--accent-gold);
  position: relative;
}

.step-number::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border: 2px solid var(--accent-gold);
  border-radius: 50%;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.05em;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* 图案展示 */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.pattern-item {
  background: var(--bg-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.pattern-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.pattern-image {
  width: 100%;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.pattern-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pattern-symbol {
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.4);
}

.pattern-info {
  padding: var(--spacing-md);
}

.pattern-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.05em;
}

.pattern-meaning {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* 传承人展示 */
.inheritor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.inheritor-item {
  background: var(--bg-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.inheritor-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.inheritor-avatar {
  width: 100%;
  height: 220px;
  background: none;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.inheritor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.inheritor-avatar .inheritor-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.4);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 传承发展页面卡片图片 */
.inheritance-card-image {
  height: 160px !important;
  min-height: auto !important;
  background: none !important;
  overflow: hidden;
}

.inheritance-card-image::before {
  display: none;
}

.inheritance-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.inheritance-card-image .card-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.4);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.inheritor-icon {
  font-size: 5rem;
  color: rgba(255, 255, 255, 0.2);
}

.inheritor-info {
  padding: var(--spacing-lg);
  text-align: center;
}

.inheritor-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
}

.inheritor-title {
  color: var(--accent-red);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.inheritor-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* 联系表单 */
.contact-form {
  background: var(--bg-light);
  padding: var(--spacing-2xl);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: 0.95rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e5e5;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.1);
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 12px 28px;
  background: var(--primary-navy);
  color: var(--text-white);
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--primary-navy-dark);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent-red);
}

.btn-primary:hover {
  background: #a01830;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  gap: var(--spacing-lg);
}

/* 导航链接 */
.nav-links-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.nav-card {
  background: var(--bg-light);
  padding: var(--spacing-lg);
  border-radius: 12px;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.nav-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.nav-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
}

.nav-card p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1200px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-left {
    padding-right: 0;
  }
  
  .hero-desc {
    margin: 0 auto var(--spacing-xl);
  }
  
  .hero-right {
    display: none;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .explore-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

/* 移动端汉堡菜单 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

@media (max-width: 768px) {
  .nav {
    flex-wrap: wrap;
    height: auto;
    padding: var(--spacing-sm) var(--spacing-md);
    position: relative;
  }
  
  .nav-toggle {
    display: block;
    margin-left: auto;
  }
  
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    background: var(--primary-navy-dark);
    border-radius: 8px;
    padding: var(--spacing-sm);
    margin-top: var(--spacing-sm);
  }
  
  .nav-links.nav-open {
    display: flex;
  }
  
  .nav-links > li {
    width: 100%;
  }
  
  .nav-links a {
    display: block;
    padding: 10px 12px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    padding-left: var(--spacing-md);
    display: none;
  }
  
  .dropdown.nav-open > .dropdown-menu,
  .dropdown.active > .dropdown-menu {
    display: block;
  }
  
  .dropdown .arrow {
    float: right;
    transition: transform 0.3s;
  }
  
  .dropdown.nav-open .arrow {
    transform: rotate(180deg);
  }
  
  .nav-right {
    display: none;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-title .highlight {
    font-size: 3rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .explore-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pattern-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .inheritor-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
    text-align: center;
  }
  
  .footer-slogan {
    font-size: 1.2rem;
  }
  
  .footer-desc {
    font-size: 0.8rem;
  }
  
  .footer-section h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
  }
  
  .footer-section li {
    margin-bottom: 6px;
  }
  
  .footer-section a {
    font-size: 0.8rem;
  }
  
  .footer-qr {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-md);
  }
  
  .qr-box {
    width: 44px;
    height: 44px;
  }
  
  .qr-text {
    font-size: 0.75rem;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 50px;
  }
  
  .timeline-content {
    width: 100%;
  }
  
  .timeline-dot {
    left: 20px;
  }
}

@media (max-width: 992px) {
  /* 平板端：inline grid 多列变2列 */
  .card-grid[style*="repeat(4"],
  .card-grid[style*="repeat(5"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  /* 手机端：所有 inline grid 变单列 */
  .card-grid[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  /* 页面标题区缩小 */
  .page-hero {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .page-hero-title {
    font-size: 1.8rem;
  }
  
  .page-hero-subtitle {
    font-size: 1rem;
  }
  
  /* section 间距减小 */
  .content-section {
    padding: var(--spacing-xl) 0;
  }
  
  /* 容器边距 */
  .container {
    padding: 0 var(--spacing-md);
  }
  
  /* 卡片内边距减小 */
  .card-content {
    padding: var(--spacing-md);
  }
  
  /* 表单全宽 */
  .contact-form {
    padding: var(--spacing-lg);
  }
  
  /* 标题字号 */
  .section-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-title .highlight {
    font-size: 2.5rem;
  }
  
  .explore-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .nav-links-cards {
    grid-template-columns: 1fr;
  }
  
  .page-hero-title {
    font-size: 1.5rem;
  }
}