/* ========================================
   摄影 / 视频作品集 · 电影感现代风格
   视觉语言：深色沉浸 + 暖金点缀 + 大图/视频主导
   ======================================== */

:root {
  --bg-deep: #0c0c0e;
  --bg-card: #161618;
  --bg-elevated: #1e1e22;
  --text-primary: #f5f2eb;
  --text-secondary: #a8a29e;
  --text-muted: #78716c;
  --accent: #d4a373;          /* 暖金 */
  --accent-soft: #e8d5b7;
  --accent-dark: #b08d57;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(212, 163, 115, 0.35);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Georgia", serif;
  --max-width: 1280px;
}

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

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

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

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

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

ul, ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ========== 导航 ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(12, 12, 14, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(12, 12, 14, 0.92);
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2.2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.55rem 1.3rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--accent) !important;
  transition: background var(--transition), color var(--transition);
}

.nav-cta:hover {
  background: var(--accent);
  color: var(--bg-deep) !important;
}

.nav-cta::after { display: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 8rem 2rem 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(212, 163, 115, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(212, 163, 115, 0.05) 0%, transparent 50%),
    var(--bg-deep);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}

.hero-title em {
  font-style: normal;
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 2.8rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
}

.btn-primary:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 163, 115, 0.3);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-num {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ========== 区块通用 ========== */
.section {
  padding: 6rem 2rem;
  position: relative;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
  gap: 2rem;
  flex-wrap: wrap;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 380px;
}

.section-link {
  font-size: 0.9rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.section-link:hover {
  color: var(--accent-soft);
}

/* ========== 精选作品网格 ========== */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.work-card.large,
.work-card.medium,
.work-card.small,
.work-card.wide {
  grid-column: span 1;
  aspect-ratio: 16 / 10;
}
.work-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border-radius: 12px;
}

.work-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.work-card:hover .work-thumb {
  transform: scale(1.06);
}

.work-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(12, 12, 14, 0.92) 0%,
    rgba(12, 12, 14, 0.4) 45%,
    transparent 70%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.8rem;
  opacity: 0.95;
  transition: opacity var(--transition);
}

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

.work-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.work-title {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  line-height: 1.3;
}

.work-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.work-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.85);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(212, 163, 115, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition);
  pointer-events: none;
}

.work-play svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
  fill: var(--bg-deep);
}

.work-card:hover .work-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* ========== 分类筛选 ========== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--bg-deep);
  background: var(--accent);
  border-color: var(--accent);
}

/* ========== 项目详情模态 ========== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  transform: translateY(20px);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.open .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--text-primary);
  transition: background var(--transition);
}

.modal-close:hover {
  background: var(--accent);
  color: var(--bg-deep);
}

.modal-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: #000;
}

.modal-video iframe,
.modal-video video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.modal-body {
  padding: 2rem 2.2rem 2.5rem;
}

.modal-tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.modal-meta strong {
  color: var(--text-primary);
  font-weight: 500;
}

.modal-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.modal-role {
  background: var(--bg-elevated);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  border-left: 3px solid var(--accent);
}

.modal-role h4 {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.modal-role p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ========== 关于我 ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.about-portrait {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--bg-card);
}

.about-portrait img {
  width: 100%;
  height: 100%;
}

.about-portrait-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #1a1a1e, #252528);
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 2rem;
}

.about-text h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  line-height: 1.75;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.skill-tag {
  padding: 0.4rem 1rem;
  background: var(--bg-elevated);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ========== 经历时间线 ========== */
.timeline {
  margin-top: 2.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  padding-bottom: 1.8rem;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 100px;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-year {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  text-align: right;
  padding-top: 2px;
}

.timeline-content h4 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ========== 联系 ========== */
.contact-section {
  text-align: center;
  padding: 7rem 2rem;
}

.contact-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  margin-bottom: 1rem;
}

.contact-desc {
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.contact-methods {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
  min-width: 220px;
}

.contact-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
}

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

.contact-info .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.contact-info .value {
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* ========== Footer ========== */
.footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

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

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .work-card.large,
  .work-card.medium,
  .work-card.small,
  .work-card.wide {
    grid-column: span 12;
    aspect-ratio: 16 / 10;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-portrait {
    max-width: 320px;
    margin: 0 auto;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(12, 12, 14, 0.98);
    flex-direction: column;
    padding: 1.5rem 2rem 2rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-stats {
    gap: 1.8rem;
  }

  .timeline-item {
    grid-template-columns: 70px 1fr;
    gap: 1rem;
  }

  .timeline-item::before {
    left: 70px;
  }
}

@media (max-width: 600px) {
  .nav {
    padding: 1rem 1.2rem;
  }

  .hero {
    padding: 7rem 1.2rem 4rem;
  }

  .section {
    padding: 4rem 1.2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .modal-body {
    padding: 1.5rem;
  }

  .modal-title {
    font-size: 1.4rem;
  }
}

/* ========== 工具类 ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.placeholder-img {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a1e 0%, #2a2a30 50%, #1e1e24 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}

/* ========== 拍摄日常 ========== */
.bts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.bts-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.bts-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.bts-img-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-elevated);
}

.bts-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.bts-item:hover .bts-img-wrap img {
  transform: scale(1.05);
}

.bts-info {
  padding: 1.1rem 1.3rem 1.3rem;
}

.bts-info h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.bts-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
}

@media (max-width: 900px) {
  .bts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .bts-grid {
    grid-template-columns: 1fr;
  }
}
.contact-desc {
  max-width: 720px;   /* 够宽，保证每句话各占一行 */
  margin: 0 auto 40px;
  text-align: center;
  text-wrap: balance; /* 万一换行，也会自动平衡各行长度 */
}