/* ===========================
   蘑菇视频 - 主样式文件
   =========================== */

/* CSS变量 */
:root {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --dark: #0f0f1a;
  --dark-card: #1a1a2e;
  --dark-border: #2d2d4e;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --gradient-1: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
  --gradient-2: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.3);
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: var(--dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--secondary);
}

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

/* ===========================
   导航栏
   =========================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dark-border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-glow);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  -webkit-text-fill-color: white;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-menu a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.15);
}

.nav-cta {
  background: var(--gradient-1) !important;
  color: white !important;
  -webkit-text-fill-color: white !important;
  padding: 8px 20px !important;
  border-radius: 8px !important;
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===========================
   搜索框
   =========================== */
.search-bar-wrapper {
  background: rgba(26, 26, 46, 0.8);
  border-bottom: 1px solid var(--dark-border);
  padding: 12px 0;
  margin-top: 64px;
}

.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-input-wrap {
  flex: 1;
  position: relative;
  max-width: 600px;
}

.search-input-wrap input {
  width: 100%;
  padding: 10px 48px 10px 16px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.search-input-wrap input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.search-input-wrap input::placeholder {
  color: var(--text-muted);
}

.search-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.search-btn:hover {
  color: var(--primary-light);
}

.search-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.search-tag {
  padding: 4px 12px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 16px;
  font-size: 0.8rem;
  color: var(--primary-light);
  cursor: pointer;
  transition: var(--transition);
}

.search-tag:hover {
  background: rgba(124, 58, 237, 0.25);
}

/* ===========================
   Hero Banner
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 100px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,15,26,0.95) 0%, rgba(124,58,237,0.3) 50%, rgba(6,182,212,0.2) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-light);
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: 0.6;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 24px;
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 20px;
  animation: fade-in-up 0.6s ease forwards;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fade-in-up 0.7s ease forwards;
}

.hero-title .highlight {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  animation: fade-in-up 0.8s ease forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fade-in-up 0.9s ease forwards;
}

.btn-primary {
  padding: 14px 32px;
  background: var(--gradient-1);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
  color: white;
}

.btn-secondary {
  padding: 14px 32px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(124, 58, 237, 0.1);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  animation: fade-in-up 1s ease forwards;
}

.hero-stat-item {
  text-align: center;
}

.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  animation: fade-in-right 1s ease forwards;
}

.hero-phone-mock {
  width: 280px;
  margin: 0 auto;
  background: var(--dark-card);
  border-radius: 32px;
  border: 2px solid var(--dark-border);
  padding: 12px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), var(--shadow-glow);
  position: relative;
}

.phone-screen {
  border-radius: 24px;
  overflow: hidden;
  background: var(--dark);
}

.phone-screen img {
  width: 100%;
  border-radius: 24px;
}

.floating-card {
  position: absolute;
  background: rgba(26, 26, 46, 0.95);
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  padding: 12px 16px;
  backdrop-filter: blur(10px);
  animation: float 3s ease-in-out infinite;
}

.floating-card.card-1 {
  top: 20px;
  right: -60px;
  animation-delay: 0s;
}

.floating-card.card-2 {
  bottom: 40px;
  left: -70px;
  animation-delay: 1.5s;
}

.floating-card .card-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.floating-card .card-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-right {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===========================
   通用区块样式
   =========================== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: rgba(26, 26, 46, 0.5);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 24px;
  font-size: 0.8rem;
  color: var(--primary-light);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-title .highlight {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===========================
   视频卡片
   =========================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--dark-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), var(--shadow-glow);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark);
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
}

.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.play-btn {
  width: 60px;
  height: 60px;
  background: rgba(124, 58, 237, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.6);
}

.video-card:hover .play-btn {
  transform: scale(1);
}

.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent white;
  margin-left: 4px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: white;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
}

.video-category-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient-1);
  color: white;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===========================
   品牌故事
   =========================== */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.story-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
}

.story-image img {
  width: 100%;
  border-radius: var(--border-radius);
  transition: transform 0.4s ease;
}

.story-image:hover img {
  transform: scale(1.03);
}

.story-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--border-radius);
  border: 1px solid rgba(124, 58, 237, 0.3);
  pointer-events: none;
}

.story-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.story-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
}

.story-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.story-value-item {
  padding: 16px;
  background: var(--dark-card);
  border-radius: 10px;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}

.story-value-item:hover {
  border-color: var(--primary);
  background: rgba(124, 58, 237, 0.05);
}

.story-value-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.story-value-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.story-value-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===========================
   服务/探索模块
   =========================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  padding: 32px 24px;
  background: var(--dark-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--dark-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(124, 58, 237, 0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: rgba(124, 58, 237, 0.3);
  transform: scale(1.1);
}

.service-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-tag {
  padding: 3px 10px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 12px;
  font-size: 0.75rem;
  color: var(--secondary);
}

/* ===========================
   用户评价
   =========================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  padding: 28px;
  background: var(--dark-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--dark-border);
  transition: var(--transition);
  position: relative;
}

.review-card:hover {
  border-color: rgba(124, 58, 237, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.review-quote {
  font-size: 2rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
  opacity: 0.6;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.review-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.review-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.review-stars {
  display: flex;
  gap: 2px;
  color: var(--accent);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* ===========================
   FAQ
   =========================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(124, 58, 237, 0.4);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.15);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  background: var(--dark-card);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  user-select: none;
}

.faq-question:hover {
  background: rgba(124, 58, 237, 0.05);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--primary-light);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  background: var(--primary);
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(26, 26, 46, 0.5);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 20px 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===========================
   品牌连接
   =========================== */
.connect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.connect-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--dark-card);
  border-radius: 10px;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}

.contact-item:hover {
  border-color: rgba(124, 58, 237, 0.4);
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(124, 58, 237, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 0.9rem;
  font-weight: 500;
}

.map-placeholder {
  background: var(--dark-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--dark-border);
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.map-placeholder .map-icon {
  font-size: 2.5rem;
}

/* ===========================
   页脚
   =========================== */
.footer {
  background: var(--dark-card);
  border-top: 1px solid var(--dark-border);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-qr {
  display: flex;
  gap: 16px;
}

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

.qr-box {
  width: 80px;
  height: 80px;
  background: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: #333;
  margin-bottom: 6px;
  padding: 4px;
}

.qr-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

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

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-link:hover {
  background: rgba(124, 58, 237, 0.25);
  border-color: var(--primary);
  color: var(--primary-light);
}

.icp-info {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}

/* ===========================
   下载区块
   =========================== */
.download-section {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(6,182,212,0.1) 100%);
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
}

.download-content {
  text-align: center;
}

.download-title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.download-desc {
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1rem;
}

.download-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  transition: var(--transition);
  color: var(--text-primary);
}

.download-btn:hover {
  border-color: var(--primary);
  background: rgba(124, 58, 237, 0.1);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.download-btn .btn-icon {
  font-size: 1.8rem;
}

.download-btn .btn-text-small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.download-btn .btn-text-main {
  font-size: 1rem;
  font-weight: 700;
}

/* ===========================
   合作伙伴
   =========================== */
.partners-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.partner-item {
  padding: 16px 28px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}

.partner-item:hover {
  border-color: var(--primary);
  color: var(--primary-light);
}

/* ===========================
   数据统计
   =========================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  padding: 32px 24px;
  background: var(--dark-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--dark-border);
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: rgba(124, 58, 237, 0.4);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===========================
   面包屑
   =========================== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.breadcrumb a:hover {
  color: var(--primary-light);
}

.breadcrumb span {
  margin: 0 8px;
}

/* ===========================
   内页 Hero
   =========================== */
.inner-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, rgba(124,58,237,0.1) 0%, rgba(6,182,212,0.05) 100%);
  border-bottom: 1px solid var(--dark-border);
  text-align: center;
}

.inner-hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 900;
  margin-bottom: 16px;
}

.inner-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===========================
   响应式
   =========================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 26, 0.98);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--dark-border);
    gap: 4px;
  }
  .nav-menu.open {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 60px 24px;
  }
  .hero-visual {
    display: none;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .story-grid {
    grid-template-columns: 1fr;
  }
  .connect-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .story-values {
    grid-template-columns: 1fr;
  }
  .search-tags {
    display: none;
  }
  .floating-card {
    display: none;
  }
}

@media (max-width: 480px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .download-btns {
    flex-direction: column;
    align-items: center;
  }
}

/* ===========================
   滚动动画
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   加载动画
   =========================== */
.skeleton {
  background: linear-gradient(90deg, var(--dark-card) 25%, rgba(45,45,78,0.5) 50%, var(--dark-card) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

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

/* ===========================
   返回顶部
   =========================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  border: none;
  color: white;
  font-size: 1.1rem;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

/* ===========================
   补充：搜索栏Fixed定位
   =========================== */
.search-bar-wrapper {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 998;
  margin-top: 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ===========================
   补充：内页Hero顶部间距
   =========================== */
.inner-hero {
  padding-top: 150px;
}

/* ===========================
   补充：面包屑链接样式
   =========================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--primary-light) !important;
}
.breadcrumb span:not(:last-child) {
  color: var(--text-muted);
}

/* ===========================
   补充：首页顶部间距（导航+搜索）
   =========================== */
body > section:first-of-type,
.hero {
  padding-top: 130px;
}

/* ===========================
   补充：connect-info h2
   =========================== */
.connect-info h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  margin-bottom: 16px;
}

/* ===========================
   补充：footer-copyright p
   =========================== */
.footer-copyright p {
  margin-bottom: 4px;
  line-height: 1.6;
}

/* ===========================
   补充：inner-hero breadcrumb
   =========================== */
.inner-hero .breadcrumb {
  justify-content: center;
  margin-bottom: 16px;
}