/**
 * 屿映文化传媒工作室 - 主样式
 * Apple Design Style
 * 无emoji | 无渐变 | Apple配色
 */

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

:root {
  /* Apple 配色方案 */
  --bg-primary: #F5F5F7;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #E8E8ED;
  --bg-hero: #000000;

  /* 文字色 */
  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-muted: #AEAEB2;
  --text-white: #FFFFFF;

  /* 主题色 */
  --primary: #0071E3;
  --primary-hover: #0077ED;
  --success: #34C759;
  --warning: #FF9500;
  --danger: #FF3B30;

  /* 尺寸 */
  --nav-height: 52px;
  --container-width: 1200px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 80px;

  /* 过渡 */
  --transition: all 0.2s ease;
}

html {
  scroll-behavior: smooth;
  text-wrap: pretty;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* ========== 容器 ========== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ========== 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.nav-brand {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-menu {
  position: fixed;
  top: 0;
  right: var(--spacing-lg);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
  margin: 0;
  padding: 0;
  z-index: 1001;
}

.nav-menu a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px var(--spacing-lg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: white;
}

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

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #FFFFFF;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #FFFFFF;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 14px;
}

/* ========== 英雄区 ========== */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + var(--spacing-xl)) var(--spacing-lg) var(--spacing-3xl);
  position: relative;
  background: var(--bg-hero);
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
  border-radius: inherit;
}

.hero-video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 var(--spacing-md);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-sm);
  font-weight: 400;
  text-wrap: balance;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--spacing-xl);
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.scroll-indicator {
  width: 20px;
  height: 32px;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  border-radius: 10px;
  margin: var(--spacing-xs) auto 0;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: var(--spacing-xs);
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 2px;
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%, 100% { top: var(--spacing-xs); opacity: 1; }
  50% { top: 16px; opacity: 0.3; }
}

/* ========== 区块通用 ========== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  text-wrap: balance;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  text-wrap: pretty;
}

/* ========== 作品区 ========== */
.works-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-primary);
  position: relative;
  z-index: 1;
}

.category-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--bg-secondary);
  border: none;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: white;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.work-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 var(--spacing-sm) var(--spacing-lg) rgba(0, 0, 0, 0.1);
}

.work-card.hidden {
  display: none;
}

.work-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.work-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

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

.work-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
}

.work-icon {
  width: 40px;
  height: 40px;
  color: var(--text-muted);
}

.work-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.work-card:hover .work-overlay {
  opacity: 1;
}

.play-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.work-type-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  padding: 3px 10px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: white;
}

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

.work-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-category {
  font-size: 13px;
  color: var(--text-secondary);
}

.empty-works {
  text-align: center;
  padding: 60px var(--spacing-lg);
  color: var(--text-muted);
}

/* ========== 服务区 ========== */
.services-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.service-card {
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: box-shadow 0.2s;
}

.service-card:hover {
  box-shadow: 0 var(--spacing-sm) var(--spacing-lg) rgba(0, 0, 0, 0.08);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  color: var(--primary);
}

.service-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  text-wrap: pretty;
}

.service-area {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  border-radius: var(--radius);
}

.service-area h3 {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.service-area p {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}

.service-area .online-service {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

/* ========== 团队区 ========== */
.team-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-primary);
  position: relative;
  z-index: 1;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.team-card {
  display: block;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
}

.team-card:hover {
  box-shadow: 0 var(--spacing-sm) var(--spacing-lg) rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.team-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto var(--spacing-md);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-placeholder {
  width: 36px;
  height: 36px;
  color: var(--text-muted);
}

.team-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.team-role {
  font-size: 14px;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.team-bio {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.5;
  text-wrap: pretty;
}

.team-portfolio-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-top: var(--spacing-sm);
}

.team-intro {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  border-radius: var(--radius);
}

.team-intro p {
  color: var(--text-secondary);
  font-size: var(--spacing-md);
}

/* ========== 联系区 ========== */
.contact-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.contact-info .section-title {
  text-align: left;
}

.contact-text {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  text-wrap: pretty;
}

.contact-details {
  margin-bottom: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.contact-icon {
  width: var(--spacing-lg);
  height: var(--spacing-lg);
  flex-shrink: 0;
  color: var(--primary);
}

.contact-item h4 {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-note {
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: var(--spacing-md);
}

.contact-note p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.contact-note .note-small {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.contact-form-card {
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: var(--spacing-xl);
}

.contact-form-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-secondary);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ========== 页脚 ========== */
.footer {
  padding: var(--spacing-xl) 0;
  background: var(--bg-tertiary);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-brand h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-xl);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: var(--transition);
}

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

.footer-copyright {
  width: 100%;
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  margin-top: var(--spacing-lg);
}

.footer-copyright p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ========== 弹窗 ========== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.7);
}

.modal.active {
  display: flex;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 900px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.7);
}

.media-container {
  width: 100%;
  background: #000;
  position: relative;
}

.media-container video,
.media-container img {
  width: 100%;
  max-height: 70vh;
  display: block;
  object-fit: contain;
}

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

.modal-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

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

@media (max-width: 768px) {
  :root {
    --spacing-3xl: 60px;
    --spacing-2xl: 32px;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: calc(100vh - var(--nav-height));
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: var(--spacing-lg);
    gap: 0;
    margin: 0;
    background: var(--bg-secondary);
    transform: translateX(100%);
    transition: transform 0.3s;
    z-index: 999;
    overflow-y: auto;
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-menu a {
    display: block;
    padding: 14px 0;
    font-size: 17px;
    border-bottom: 1px solid var(--bg-tertiary);
  }

  .nav-toggle {
    display: flex;
  }

  .works-grid {
    grid-template-columns: 1fr;
  }

  .category-filter {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
  }

  .filter-btn {
    flex-shrink: 0;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    padding: 0 var(--spacing-md);
  }

  .hero-actions .btn {
    width: 100%;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.5rem;
  }

  .service-card,
  .team-card {
    padding: var(--spacing-lg);
  }

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

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