/* 17C官网主样式 - 现代活力科技未来感 */
:root {
  --primary: #6c3fff;
  --secondary: #00d4ff;
  --accent: #ff3c6e;
  --dark: #0a0a1a;
  --dark2: #12122a;
  --dark3: #1a1a3e;
  --text: #e8e8f0;
  --text-muted: #9090b0;
  --card-bg: rgba(255,255,255,0.04);
  --border: rgba(108,63,255,0.2);
  --gradient: linear-gradient(135deg, #6c3fff 0%, #00d4ff 100%);
  --gradient2: linear-gradient(135deg, #ff3c6e 0%, #6c3fff 100%);
  --shadow: 0 8px 32px rgba(108,63,255,0.18);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

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

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== 通用 ===== */
a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1.2;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 48px;
  max-width: 600px;
}
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,63,255,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,63,255,0.6);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--secondary);
  border: 2px solid var(--secondary);
}
.btn-outline:hover {
  background: var(--secondary);
  color: var(--dark);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 22px; font-size: 0.9rem; }

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.tag-video { background: rgba(255,60,110,0.15); color: #ff3c6e; border: 1px solid rgba(255,60,110,0.3); }
.tag-tech { background: rgba(0,212,255,0.12); color: var(--secondary); border: 1px solid rgba(0,212,255,0.25); }
.tag-life { background: rgba(108,63,255,0.15); color: #a78bfa; border: 1px solid rgba(108,63,255,0.3); }

/* ===== 顶部导航 ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,10,26,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10,10,26,0.98);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 24px;
  max-width: 1280px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.6rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}
.nav-logo img { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: rgba(108,63,255,0.12);
}
.nav-cta { margin-left: 12px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== 搜索栏 ===== */
.search-bar {
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-wrap {
  flex: 1;
  max-width: 560px;
  position: relative;
}
.search-wrap input {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 9px 44px 9px 18px;
  color: var(--text);
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition);
}
.search-wrap input::placeholder { color: var(--text-muted); }
.search-wrap input:focus {
  border-color: var(--primary);
  background: rgba(108,63,255,0.08);
  box-shadow: 0 0 0 3px rgba(108,63,255,0.15);
}
.search-btn {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px;
  transition: var(--transition);
}
.search-btn:hover { color: var(--primary); }
.search-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.search-hot span { color: var(--text-muted); }
.search-hot a {
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 50px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  transition: var(--transition);
}
.search-hot a:hover { color: var(--secondary); border-color: var(--secondary); }

/* ===== Hero Banner ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 120px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/banner_hero.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,26,0.7) 0%, rgba(108,63,255,0.15) 50%, rgba(10,10,26,0.8) 100%);
  z-index: 1;
}
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: 0;
}
@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.3; }
  100% { transform: translateY(-20px) scale(1); opacity: 0; }
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(108,63,255,0.2);
  border: 1px solid rgba(108,63,255,0.4);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.85rem;
  color: #a78bfa;
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease;
}
.hero-badge::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--primary);
  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 h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}
.hero h1 .brand-highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.2rem;
  color: rgba(232,232,240,0.8);
  margin-bottom: 32px;
  max-width: 560px;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-highlights {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.hero-highlight {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.hero-highlight::before {
  content: '▶';
  color: var(--primary);
  font-size: 0.7rem;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-stats {
  position: absolute;
  bottom: 48px;
  right: 0;
  z-index: 2;
  display: flex;
  gap: 32px;
  animation: fadeInRight 0.8s ease 0.5s both;
}
.hero-stat {
  text-align: center;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 24px;
}
.hero-stat-num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: bounce 2s infinite;
}
.hero-scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* ===== 视频卡片区 ===== */
.video-section { background: var(--dark2); }
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: var(--transition);
  opacity: 0;
}
.video-card:hover .video-play-btn { opacity: 1; background: rgba(0,0,0,0.4); }
.play-icon {
  width: 60px; height: 60px;
  background: rgba(108,63,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(108,63,255,0.5);
}
.video-card:hover .play-icon { transform: scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 16px; }
.video-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.video-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-stats {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ===== 品牌故事 ===== */
.story-section { background: var(--dark); }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.story-img {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.story-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.story-img:hover img { transform: scale(1.04); }
.story-img::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 2px solid transparent;
  background: var(--gradient) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  pointer-events: none;
}
.story-cards { display: flex; flex-direction: column; gap: 20px; }
.story-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.story-card:hover {
  border-color: var(--primary);
  background: rgba(108,63,255,0.06);
  transform: translateX(6px);
}
.story-card-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}
.story-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.story-card p { font-size: 0.92rem; color: var(--text-muted); }

/* ===== 品牌探索 ===== */
.explore-section { background: var(--dark3); }
.explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.explore-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.explore-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: var(--transition);
}
.explore-card:hover::before { transform: scaleX(1); }
.explore-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.explore-icon {
  width: 72px; height: 72px;
  background: rgba(108,63,255,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
  border: 1px solid rgba(108,63,255,0.25);
  transition: var(--transition);
}
.explore-card:hover .explore-icon {
  background: rgba(108,63,255,0.25);
  transform: scale(1.1) rotate(5deg);
}
.explore-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.explore-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }

/* ===== 品牌创造 ===== */
.create-section { background: var(--dark2); }
.create-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.create-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.create-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.create-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.create-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.create-card:hover .create-card-img img { transform: scale(1.05); }
.create-card-body { padding: 24px; }
.create-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.create-card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
.create-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== 品牌灵感 ===== */
.inspire-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}
.inspire-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/inspire_bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}
.inspire-section .container { position: relative; z-index: 1; }
.inspire-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.inspire-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.inspire-card:hover {
  border-color: var(--secondary);
  background: rgba(0,212,255,0.05);
  transform: translateY(-4px);
}
.inspire-date { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 12px; }
.inspire-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}
.inspire-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
.inspire-card-footer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== 用户评价 ===== */
.reviews-section { background: var(--dark3); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px; right: 24px;
  font-size: 4rem;
  color: rgba(108,63,255,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.review-stars { color: #ffd700; font-size: 0.9rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user-info { flex: 1; }
.review-user-name { font-weight: 700; font-size: 0.95rem; color: var(--text); }
.review-user-role { font-size: 0.8rem; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-section { background: var(--dark2); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  background: var(--card-bg);
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { background: rgba(108,63,255,0.06); }
.faq-arrow {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(108,63,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.open .faq-arrow { transform: rotate(180deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(108,63,255,0.03);
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 品牌连接 ===== */
.connect-section { background: var(--dark); }
.connect-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.connect-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.connect-card:hover {
  transform: translateY(-6px);
  border-color: var(--secondary);
  box-shadow: 0 8px 32px rgba(0,212,255,0.15);
}
.connect-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.connect-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.connect-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 20px; }

/* ===== 联系方式 ===== */
.contact-section { background: var(--dark3); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.contact-item:hover { border-color: var(--primary); }
.contact-item-icon {
  width: 44px; height: 44px;
  background: rgba(108,63,255,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-item-text h4 { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 4px; }
.contact-item-text p { font-size: 0.95rem; color: var(--text); font-weight: 500; }
.map-placeholder {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}
.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(108,63,255,0.1) 0%, transparent 70%);
}
.map-icon { font-size: 3rem; }

/* ===== CTA Banner ===== */
.cta-section {
  background: linear-gradient(135deg, var(--dark3) 0%, rgba(108,63,255,0.2) 50%, var(--dark3) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-inner {
  text-align: center;
  padding: 80px 20px;
}
.cta-inner h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.cta-inner p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.footer {
  background: #06060f;
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand { }
.footer-logo {
  font-size: 1.8rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 280px;
}
.footer-socials { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--secondary); padding-left: 4px; }
.footer-qr { display: flex; gap: 20px; }
.qr-item { text-align: center; }
.qr-box {
  width: 80px; height: 80px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 6px;
}
.qr-item p { font-size: 0.75rem; color: var(--text-muted); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--secondary); }
.icp-info { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== 内页通用 ===== */
.page-hero {
  padding: 140px 0 60px;
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(108,63,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb span { color: var(--text-muted); }
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.page-hero p { color: var(--text-muted); font-size: 1.05rem; max-width: 600px; }

/* ===== 合作伙伴 ===== */
.partners-section { background: var(--dark2); padding: 48px 0; }
.partners-title { text-align: center; font-size: 0.88rem; color: var(--text-muted); margin-bottom: 28px; letter-spacing: 1px; text-transform: uppercase; }
.partners-list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.partner-item {
  font-size: 1.1rem;
  font-weight: 700;
  color: rgba(255,255,255,0.2);
  letter-spacing: 1px;
  transition: var(--transition);
}
.partner-item:hover { color: rgba(255,255,255,0.6); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .explore-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(10,10,26,0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    z-index: 999;
  }
  .nav-links.open .nav-cta { display: block; margin: 8px 0 0; }
  .story-grid { grid-template-columns: 1fr; gap: 32px; }
  .explore-grid { grid-template-columns: 1fr; }
  .create-grid { grid-template-columns: 1fr; }
  .inspire-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .connect-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .search-hot { display: none; }
  .hero { padding-top: 140px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .video-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn { padding: 12px 24px; font-size: 0.9rem; }
  .hero h1 { font-size: 2rem; }
}

/* ===== 动画工具类 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ===== 加载动画 ===== */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--card-bg) 25%, rgba(255,255,255,0.08) 50%, var(--card-bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}