/* ============================================
   星辰科技 - 暗黑电影式官网样式
   灵感来源: gamesci.cn 设计语言
   ============================================ */

/* === 基础重置与全局变量 === */
:root {
  --color-bg-primary: #000000;
  --color-bg-secondary: #111111;
  --color-bg-card: rgba(0, 0, 0, 0.9);
  --color-bg-overlay: rgba(0, 0, 0, 0.65);
  --color-bg-button: #ffffff;
  --color-bg-button-hover: #23272b;
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.8);
  --color-text-muted: #b5b4b2;
  --color-text-warm: #dfdad3;
  --color-text-gray: #686868;
  --color-accent: #6c5ce7;
  --color-accent-secondary: #00cec9;
  --color-accent-red: #bf3232;
  --color-border: rgba(255, 255, 255, 0.15);
  --color-border-button: 2px solid #ffffff;
  --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-quote: 'Noto Serif SC', 'STKaiti', 'Kaiti SC', serif;
  --nav-height: 72px;
  --breakpoint-mobile: 900px;
  --transition-base: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.8s ease;
}

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

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

body {
  font-family: var(--font-cn);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul, ol { list-style: none; }

/* === 页面加载动画 === */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}
.loader-icon {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === 导航栏 === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}
.navbar.scrolled {
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.navbar-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-en);
}
.navbar-logo-text {
  display: flex;
  flex-direction: column;
}
.navbar-logo-text .cn {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1.2;
}
.navbar-logo-text .en {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-family: var(--font-en);
}
.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.navbar-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
  position: relative;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}
.navbar-links a:hover,
.navbar-links a.active {
  color: var(--color-text-primary);
}
.navbar-links a:hover::after,
.navbar-links a.active::after {
  width: 100%;
}
.navbar-links a.highlight {
  color: var(--color-accent);
  font-weight: 600;
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
  transform-origin: center;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.96);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}
.mobile-menu a {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}
.mobile-menu a:hover { color: var(--color-text-primary); }

/* === HERO 区域 === */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.1) 40%,
    rgba(0, 0, 0, 0.6) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--color-text-warm);
  margin-bottom: 24px;
  letter-spacing: 2px;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.05);
}
.hero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-indicators {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 12px;
}
.hero-indicator {
  width: 32px;
  height: 3px;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition-base);
  border: none;
}
.hero-indicator.active {
  background: var(--color-text-primary);
  width: 48px;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 12px;
  letter-spacing: 2px;
  animation: scrollBounce 2s ease infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* === 按钮样式 === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  letter-spacing: 0.5px;
  font-family: var(--font-cn);
}
.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-bg-primary);
}
.btn-primary:hover {
  background: var(--color-bg-button-hover);
  color: var(--color-text-primary);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: var(--color-border-button);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}
.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, #a29bfe 100%);
  color: #fff;
}
.btn-accent:hover {
  background: linear-gradient(135deg, #5b4cc4 0%, var(--color-accent) 100%);
  transform: translateY(-2px);
}

/* === 通用 Section === */
.section {
  padding: 120px 48px;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
  font-family: var(--font-en);
}
.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* === 使命宣言区 === */
.mission {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.mission::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-bg-overlay);
}
.mission-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px;
}
.mission-quote {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}
.mission-sub {
  font-size: 17px;
  color: var(--color-text-warm);
  margin-bottom: 40px;
}

/* === 产品展示 === */
.products {
  background: var(--color-bg-card);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.product-card {
  position: relative;
  height: 420px;
  overflow: hidden;
  cursor: pointer;
  group: true;
}
.product-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.8s ease;
}
.product-card:hover .product-card-bg {
  transform: scale(1.08);
}
.product-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.1) 100%);
  transition: background var(--transition-base);
}
.product-card:hover .product-card-overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.2) 100%);
}
.product-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  z-index: 2;
  transform: translateY(0);
  transition: transform var(--transition-base);
}
.product-card:hover .product-card-content {
  transform: translateY(0);
}
.product-card-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-family: var(--font-en);
}
.product-card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.product-card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  opacity: 1;
  transition: opacity var(--transition-base);
}
.product-card:hover .product-card-desc {
  opacity: 1;
}
.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
}
.product-card-link .arrow {
  transition: transform var(--transition-base);
}
.product-card:hover .product-card-link .arrow {
  transform: translateX(6px);
}

/* === 关于我们 === */
.about {
  background: var(--color-bg-secondary);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}
.about-image {
  position: relative;
  height: 480px;
  overflow: hidden;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-border);
}
.about-text h3 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}
.about-text p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 2;
  margin-bottom: 16px;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.stat-item .stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent);
  font-family: var(--font-en);
  line-height: 1;
}
.stat-item .stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* === 荣誉资质 === */
.awards {
  background: var(--color-bg-primary);
}
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.award-card {
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-base);
}
.award-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  background: rgba(59, 130, 246, 0.05);
}
.award-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.award-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.award-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* === 团队/办公地点 === */
.locations {
  background: var(--color-bg-secondary);
}
.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.location-card {
  position: relative;
  height: 360px;
  overflow: hidden;
  cursor: pointer;
}
.location-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.8s ease;
}
.location-card:hover .location-card-bg {
  transform: scale(1.06);
}
.location-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 60%);
}
.location-card-content {
  position: absolute;
  bottom: 32px;
  left: 32px;
  z-index: 2;
}
.location-card-pin {
  font-size: 20px;
  margin-bottom: 8px;
}
.location-card-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}
.location-card-addr {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* === 新闻动态 === */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.news-card {
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}
.news-card:hover {
  border-color: rgba(255,255,255,0.3);
  transform: translateY(-4px);
}
.news-card-image {
  height: 200px;
  overflow: hidden;
}
.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.news-card:hover .news-card-image img {
  transform: scale(1.05);
}
.news-card-body {
  padding: 24px;
}
.news-card-date {
  font-size: 12px;
  color: var(--color-text-gray);
  margin-bottom: 8px;
  font-family: var(--font-en);
}
.news-card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.news-card-excerpt {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* === 联系区域 === */
.contact {
  background: var(--color-bg-secondary);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1100px;
  margin: 0 auto;
}
.contact-info h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 20px;
}
.contact-info p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-item-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-item-text .label {
  font-size: 12px;
  color: var(--color-text-gray);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 4px;
  font-family: var(--font-en);
}
.contact-item-text .value {
  font-size: 16px;
  color: var(--color-text-primary);
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}
.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: 14px 16px;
  font-size: 15px;
  font-family: var(--font-cn);
  transition: border-color var(--transition-base);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
.form-status {
  min-height: 24px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.form-note {
  font-size: 12px;
  color: var(--color-text-gray);
  line-height: 1.7;
}
.form-note a,
.legal-content a {
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.form-status[data-state="success"] { color: #86efac; }
.form-status[data-state="error"] { color: #fca5a5; }
.form-status[data-state="pending"] { color: var(--color-text-secondary); }
.contact-form button[disabled] {
  cursor: wait;
  opacity: 0.72;
}

/* === 页脚 === */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: 64px 48px 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto 48px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  transition: color var(--transition-base);
}
.footer-col a:hover { color: var(--color-text-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-gray);
}
.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}
.footer-social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* === 页面 Banner（子页面通用） === */
.page-banner {
  height: 50vh;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background-size: cover;
  background-position: center;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.8));
}
.page-banner-content {
  position: relative;
  z-index: 2;
}
.page-banner h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  margin-bottom: 12px;
}
.page-banner p {
  font-size: 18px;
  color: var(--color-text-secondary);
}

/* === 时间线 === */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}
.timeline-item {
  position: relative;
  margin-bottom: 48px;
  padding-left: 32px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -44px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}
.timeline-year {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-en);
  margin-bottom: 8px;
}
.timeline-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.timeline-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* === 法务/隐私页面 === */
.legal-page {
  background: var(--color-bg-secondary);
}
.legal-content {
  max-width: 840px;
  margin: 0 auto;
}
.legal-content h2 {
  font-size: 22px;
  line-height: 1.4;
  margin: 32px 0 12px;
}
.legal-content h2:first-of-type {
  margin-top: 0;
}
.legal-content p {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-secondary);
}

/* === 滚动动画 === */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.js .reveal {
  opacity: 0;
  transform: translateY(40px);
}
.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.js .reveal-left {
  opacity: 0;
  transform: translateX(-40px);
}
.js .reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.js .reveal-right {
  opacity: 0;
  transform: translateX(40px);
}
.js .reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* === 响应式 === */
@media (max-width: 900px) {
  .navbar { padding: 0 24px; }
  .navbar-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
  .section { padding: 80px 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-image { height: 300px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .products-grid { grid-template-columns: 1fr; }
  .locations-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .js .reveal-left,
  .js .reveal-right {
    transform: translateY(32px);
  }
  .js .reveal-left.visible,
  .js .reveal-right.visible {
    transform: translateY(0);
  }
}
@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .awards-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .navbar-logo-text .en { letter-spacing: 2px; }
}

/* === Cookie 横幅 === */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(17, 17, 17, 0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  padding: 16px 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  z-index: 998;
  transform: translateY(100%);
  transition: transform 0.5s ease;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner p {
  font-size: 14px;
  color: var(--color-text-muted);
}
.cookie-banner .btn {
  padding: 8px 24px;
  font-size: 13px;
}