/* ============================================
   Gallery Stream — 画廊流资讯平台
   全屏大图 × 留白 × 悬停显示标题 × 极简导航 × 高级杂志氛围
   ============================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

:root {
  --bg-base: #0a0a0a;
  --bg-card: #111111;
  --bg-elevated: #1a1a1a;
  --text-primary: #f5f5f0;
  --text-secondary: #b0b0a8;
  --text-muted: #606058;
  --accent-gold: #c9a84c;
  --accent-gold-dim: rgba(201,168,76,0.12);
  --accent-ivory: #f5f0e8;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-slow: cubic-bezier(0.25, 0.1, 0.25, 1);
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ===== 极简导航 ===== */
.gs-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 48px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background 0.5s, backdrop-filter 0.5s;
}
.gs-nav.scrolled {
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.gs-nav-inner {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.gs-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-primary);
}
.gs-nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.gs-nav-links a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.4s;
  position: relative;
}
.gs-nav-links a:hover { color: var(--accent-gold); }
.gs-nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--accent-gold);
  transition: width 0.4s var(--ease-out), left 0.4s var(--ease-out);
}
.gs-nav-links a:hover::after { width: 100%; left: 0; }
.gs-nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.gs-search-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.3s, color 0.3s;
  color: var(--text-muted);
}
.gs-search-btn:hover { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.gs-search-btn svg { width: 16px; height: 16px; }
.gs-mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.gs-mobile-menu-btn svg { width: 22px; height: 22px; }

/* ===== 搜索覆盖层 ===== */
.gs-search-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(16px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 16vh;
  opacity: 0; pointer-events: none; transition: opacity 0.4s;
}
.gs-search-overlay.active { opacity: 1; pointer-events: all; }
.gs-search-overlay-inner {
  width: 100%; max-width: 560px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 2px;
  padding: 32px; position: relative;
  max-height: 70vh; overflow-y: auto;
}
.gs-search-close {
  position: absolute; top: 12px; right: 16px;
  font-size: 24px; background: none; border: none;
  cursor: pointer; color: var(--text-muted); line-height: 1;
  transition: color 0.3s;
}
.gs-search-close:hover { color: var(--text-primary); }
.gs-search-box {
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 16px; margin-bottom: 16px;
}
.gs-search-box svg { width: 18px; height: 18px; color: var(--text-muted); flex-shrink: 0; }
.gs-search-input {
  width: 100%; border: none; outline: none;
  font-size: 16px; font-family: var(--font-body);
  background: transparent; color: var(--text-primary);
  letter-spacing: 0.5px;
}
.gs-search-input::placeholder { color: var(--text-muted); }
.gs-search-results { display: flex; flex-direction: column; gap: 2px; }
.gs-search-result-item {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 8px; border-radius: 2px;
  text-decoration: none; color: inherit; transition: background 0.2s;
}
.gs-search-result-item:hover { background: rgba(255,255,255,0.03); }
.gs-search-result-thumb {
  width: 52px; height: 36px; border-radius: 1px;
  overflow: hidden; flex-shrink: 0; background: var(--bg-elevated);
}
.gs-search-result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gs-search-result-info { flex: 1; min-width: 0; }
.gs-search-result-cat {
  font-size: 9px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: var(--accent-gold); margin-bottom: 2px;
}
.gs-search-result-title {
  font-size: 13px; line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gs-search-empty { text-align: center; padding: 24px; color: var(--text-muted); font-size: 13px; }

/* ===== 全屏焦点图 Hero ===== */
.gs-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  cursor: pointer;
}
.gs-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 8s var(--ease-slow);
}
.gs-hero:hover img {
  transform: scale(1.03);
}
.gs-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.7) 0%, rgba(10,10,10,0.0) 40%, rgba(10,10,10,0.15) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 80px 80px;
  opacity: 0;
  transition: opacity 0.6s var(--ease-out);
}
.gs-hero:hover .gs-hero-overlay {
  opacity: 1;
}
.gs-hero-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 16px;
}
.gs-hero-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 64px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  max-width: 800px;
  margin-bottom: 16px;
}
.gs-hero-excerpt {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 560px;
}
.gs-hero-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ===== 画廊网格 ===== */
.gs-gallery {
  max-width: 1600px;
  margin: 0 auto;
  padding: 80px 80px 0;
}

/* 双列画廊 */
.gs-gallery-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

/* 全幅横幅 */
.gs-gallery-banner {
  margin-bottom: 32px;
}

/* 画廊卡片 */
.gs-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-card);
}
.gs-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-slow), filter 0.6s;
}
.gs-card:hover img {
  transform: scale(1.04);
}
.gs-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.75) 0%, rgba(10,10,10,0.0) 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  opacity: 0;
  transition: opacity 0.5s var(--ease-out);
}
.gs-card:hover .gs-card-overlay {
  opacity: 1;
}
.gs-card-tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 12px;
}
.gs-card-title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.gs-card-excerpt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 双列卡片高度 */
.gs-gallery-row .gs-card {
  height: 520px;
}

/* 横幅卡片高度 */
.gs-gallery-banner .gs-card {
  height: 400px;
}

/* ===== 分隔线 ===== */
.gs-divider {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 80px;
}
.gs-divider-line {
  height: 1px;
  background: rgba(255,255,255,0.06);
}

/* ===== 引言区 ===== */
.gs-quote {
  max-width: 1600px;
  margin: 0 auto;
  padding: 100px 80px;
  text-align: center;
  position: relative;
}
.gs-quote::before {
  content: '\201C';
  font-family: var(--font-display);
  font-size: 200px;
  color: rgba(201,168,76,0.06);
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
  pointer-events: none;
}
.gs-quote-text {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 400;
  font-style: italic;
  line-height: 1.5;
  max-width: 760px;
  margin: 0 auto 28px;
  color: var(--text-primary);
}
.gs-quote-author {
  font-size: 11px;
  color: var(--accent-gold);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 400;
}

/* ===== 数据条 ===== */
.gs-stats {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 80px 80px;
}
.gs-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.04);
}
.gs-stat-card {
  background: var(--bg-base);
  padding: 40px 32px;
  text-align: center;
  transition: background 0.4s;
}
.gs-stat-card:hover {
  background: var(--bg-card);
}
.gs-stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 400;
  line-height: 1;
  margin-bottom: 12px;
  color: var(--accent-gold);
}
.gs-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.gs-stat-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ===== Section 标题 ===== */
.gs-section {
  max-width: 1600px;
  margin: 0 auto;
  padding: 80px 80px 0;
}
.gs-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.gs-section-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 10px;
}
.gs-section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.gs-section-more {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap 0.4s var(--ease-out);
  flex-shrink: 0;
}
.gs-section-more:hover { gap: 16px; }
.gs-section-more svg { width: 14px; height: 14px; }

/* ===== 文章流 ===== */
.gs-stream {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 80px 80px;
}
.gs-stream-list {
  display: flex;
  flex-direction: column;
}
.gs-stream-item {
  display: grid;
  grid-template-columns: 100px 1fr 120px;
  gap: 32px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background 0.3s;
  cursor: pointer;
}
.gs-stream-item:first-child {
  border-top: 1px solid rgba(255,255,255,0.04);
}
.gs-stream-item:hover {
  background: rgba(255,255,255,0.015);
}
.gs-stream-date {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  font-weight: 400;
  text-transform: uppercase;
}
.gs-stream-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.3;
  transition: color 0.3s;
}
.gs-stream-item:hover .gs-stream-title { color: var(--accent-gold); }
.gs-stream-cat {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-align: right;
  color: var(--accent-gold);
}

/* ===== Footer ===== */
.gs-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 80px 0 40px;
}
.gs-footer-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 80px;
}
.gs-footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 80px;
  margin-bottom: 60px;
}
.gs-footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.gs-footer-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 320px;
}
.gs-footer-heading {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.gs-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.gs-footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.3s;
  letter-spacing: 0.5px;
}
.gs-footer-links a:hover { color: var(--accent-gold); }
.gs-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ===== 进入动画 ===== */
.gs-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.gs-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 文章详情页 ===== */
.gs-article-hero {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 480px;
  overflow: hidden;
}
.gs-article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gs-article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.2) 50%, rgba(10,10,10,0.3) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 80px 80px;
}
.gs-article-hero-tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 20px;
}
.gs-article-hero-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 60px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  max-width: 800px;
  margin-bottom: 24px;
}
.gs-article-hero-meta {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 24px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.gs-article-hero-meta span { display: flex; align-items: center; gap: 6px; }
.gs-article-hero-meta svg { width: 12px; height: 12px; }

.gs-article-body {
  max-width: 700px;
  margin: 0 auto;
  padding: 80px 32px 80px;
}
.gs-article-body p {
  font-size: 16px;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.gs-article-body p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 400;
  float: left;
  line-height: 0.8;
  margin-right: 14px;
  margin-top: 6px;
  color: var(--accent-gold);
}
.gs-article-body h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.3;
  margin: 48px 0 20px;
  color: var(--text-primary);
}
.gs-article-body blockquote {
  border-left: 1px solid var(--accent-gold);
  padding: 20px 0 20px 32px;
  margin: 40px 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-style: italic;
  line-height: 1.6;
  color: var(--text-primary);
}

/* 详情页媒体区 */
.gs-article-media {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 80px 80px;
}
.gs-article-media-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 28px;
}
.gs-article-media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gs-article-media-item {
  overflow: hidden;
}
.gs-article-media-item img {
  width: 100%; height: 240px; object-fit: cover;
  transition: transform 0.8s var(--ease-slow);
}
.gs-article-media-item:hover img { transform: scale(1.04); }

/* 详情页相关文章 */
.gs-article-related {
  max-width: 1600px;
  margin: 0 auto;
  padding: 80px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.gs-article-related-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  margin-bottom: 40px;
  color: var(--text-primary);
}
.gs-article-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.gs-related-card {
  cursor: pointer;
  transition: transform 0.4s var(--ease-out);
}
.gs-related-card:hover { transform: translateY(-4px); }
.gs-related-card-img {
  overflow: hidden;
  margin-bottom: 20px;
}
.gs-related-card-img img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.8s var(--ease-slow);
}
.gs-related-card:hover .gs-related-card-img img { transform: scale(1.04); }
.gs-related-card-tag {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 10px;
}
.gs-related-card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .gs-gallery, .gs-section, .gs-stream, .gs-stats, .gs-quote, .gs-divider {
    padding-left: 48px;
    padding-right: 48px;
  }
  .gs-hero-overlay { padding: 0 48px 60px; }
  .gs-article-hero-overlay { padding: 0 48px 60px; }
  .gs-article-related { padding: 60px 48px; }
  .gs-article-media { padding: 0 48px 60px; }
  .gs-footer-inner { padding: 0 48px; }
}

@media (max-width: 900px) {
  .gs-gallery-row {
    grid-template-columns: 1fr;
  }
  .gs-gallery-row .gs-card {
    height: 400px;
  }
  .gs-gallery-banner .gs-card {
    height: 320px;
  }
  .gs-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .gs-article-related-grid {
    grid-template-columns: 1fr 1fr;
  }
  .gs-footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .gs-stream-item {
    grid-template-columns: 80px 1fr;
  }
  .gs-stream-cat { display: none; }
}

@media (max-width: 640px) {
  .gs-nav { padding: 0 24px; }
  .gs-nav-links { display: none; }
  .gs-mobile-menu-btn { display: flex; }
  .gs-gallery, .gs-section, .gs-stream, .gs-stats, .gs-quote, .gs-divider {
    padding-left: 24px;
    padding-right: 24px;
  }
  .gs-hero-overlay { padding: 0 24px 40px; }
  .gs-article-hero-overlay { padding: 0 24px 40px; }
  .gs-article-related { padding: 40px 24px; }
  .gs-article-media { padding: 0 24px 40px; }
  .gs-footer-inner { padding: 0 24px; }
  .gs-hero { height: 80vh; }
  .gs-gallery-row .gs-card { height: 320px; }
  .gs-gallery-banner .gs-card { height: 260px; }
  .gs-stats-grid { grid-template-columns: 1fr 1fr; gap: 1px; }
  .gs-article-related-grid { grid-template-columns: 1fr; }
  .gs-article-body { padding: 48px 20px; }
  .gs-article-media-grid { grid-template-columns: 1fr; }
  .gs-stream-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .gs-stream-date { font-size: 10px; }
}