/* ============================================
   Lightbox Gallery — 摄影展灯箱墙
   深浅交替背景墙 × 图片柔光 × 极细边框 × 杂志级大图
   ============================================ */

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

:root {
  /* 灯箱墙：深浅交替的暗色墙面 */
  --wall-base: #060608;        /* 主墙面（极深） */
  --wall-deep: #040406;        /* 最深墙面 */
  --wall-ash: #0e0e14;         /* 浅一档墙面 */
  --wall-smoke: #14141c;       /* 再浅一档墙面 */

  --frame-bg: #0a0a0f;
  --text-primary: #f4f4f8;
  --text-secondary: #9a9aab;
  --text-muted: #5a5a6b;

  /* 极细边框 —— 墙面接缝般的发丝线 */
  --hairline: rgba(255,255,255,0.07);
  --hairline-strong: rgba(255,255,255,0.13);

  /* 灯箱柔光（冷白光，模拟发光展板） */
  --glow-soft: 0 0 0 1px rgba(255,255,255,0.03), 0 26px 70px -34px rgba(176,200,255,0.30);
  --glow-strong: 0 0 0 1px rgba(255,255,255,0.12), 0 34px 90px -26px rgba(176,200,255,0.50);

  /* 分类色（仅用于发丝标签，弱化为展厅指示色） */
  --line-red: #ef4444;
  --line-blue: #3b82f6;
  --line-green: #22c55e;
  --line-amber: #f59e0b;

  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

body {
  font-family: var(--font-body);
  background: var(--wall-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; }

/* ===== 导航栏（极简、半透明压暗） ===== */
.lb-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(6,6,8,0.82);
  backdrop-filter: blur(22px) saturate(120%);
  -webkit-backdrop-filter: blur(22px) saturate(120%);
  border-bottom: 1px solid var(--hairline);
}
.lb-nav-inner {
  max-width: 1480px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
}
.lb-logo {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 11px;
}
.lb-logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 2px;
  background: #f4f4f8;
  color: #060608;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 0 22px -4px rgba(255,255,255,0.55);
}
.lb-nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
}
.lb-nav-links a {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.3s;
}
.lb-nav-links a:hover { color: var(--text-primary); }
.lb-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lb-search-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  color: var(--text-muted);
  transition: background 0.3s, color 0.3s;
}
.lb-search-btn:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.lb-search-btn svg { width: 18px; height: 18px; }
.lb-mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.lb-mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
}

/* ===== 搜索覆盖层 ===== */
.lb-search-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(4,4,6,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 14vh;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.lb-search-overlay.active { opacity: 1; pointer-events: all; }
.lb-search-overlay-inner {
  width: 100%; max-width: 600px;
  background: var(--frame-bg);
  border: 1px solid var(--hairline);
  box-shadow: var(--glow-strong);
  border-radius: 3px;
  padding: 26px; position: relative;
  max-height: 72vh; overflow-y: auto;
}
.lb-search-close {
  position: absolute; top: 10px; right: 14px;
  font-size: 22px; background: none; border: none;
  cursor: pointer; color: var(--text-muted); line-height: 1;
}
.lb-search-close:hover { color: var(--text-primary); }
.lb-search-box {
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 14px; margin-bottom: 14px;
}
.lb-search-box svg { width: 20px; height: 20px; color: var(--text-muted); flex-shrink: 0; }
.lb-search-input {
  width: 100%; border: none; outline: none;
  font-size: 15px; font-family: var(--font-body);
  background: transparent; color: var(--text-primary);
}
.lb-search-input::placeholder { color: var(--text-muted); }
.lb-search-results { display: flex; flex-direction: column; gap: 4px; }
.lb-search-result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 8px; border-radius: 3px;
  text-decoration: none; color: inherit; transition: background 0.2s;
  border: 1px solid transparent;
}
.lb-search-result-item:hover { background: rgba(255,255,255,0.03); border-color: var(--hairline); }
.lb-search-result-thumb {
  width: 56px; height: 38px; border-radius: 2px;
  overflow: hidden; flex-shrink: 0; background: var(--wall-smoke);
  box-shadow: var(--glow-soft);
}
.lb-search-result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.lb-search-result-info { flex: 1; min-width: 0; }
.lb-search-result-cat {
  font-size: 9px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; margin-bottom: 2px;
}
.lb-search-result-title {
  font-size: 13px; line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.lb-search-empty { text-align: center; padding: 24px; color: var(--text-muted); font-size: 14px; }

/* ===== 展厅入口（Masthead）===== */
.lb-masthead {
  max-width: 1480px;
  margin: 0 auto;
  padding: 72px 32px 28px;
  text-align: center;
}
.lb-masthead-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.lb-masthead-title {
  font-size: clamp(34px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -1.5px;
  background: linear-gradient(180deg, #ffffff 0%, #9a9aab 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lb-masthead-sub {
  margin: 18px auto 0;
  max-width: 560px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ===== 展厅筛选（发丝标签）===== */
.lb-filters {
  max-width: 1480px;
  margin: 0 auto;
  padding: 20px 32px 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.lb-filter-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.4px;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--text-secondary);
}
.lb-filter-chip-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.lb-filter-chip:hover { border-color: var(--hairline-strong); color: var(--text-primary); }
.lb-filter-chip.active {
  border-color: var(--hairline-strong);
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
}
.lb-filter-chip[data-line="match-reports"] .lb-filter-chip-dot { background: var(--line-red); }
.lb-filter-chip[data-line="player-features"] .lb-filter-chip-dot { background: var(--line-blue); }
.lb-filter-chip[data-line="records-stats"] .lb-filter-chip-dot { background: var(--line-green); }
.lb-filter-chip[data-line="world-cup-2026"] .lb-filter-chip-dot { background: var(--line-amber); }

/* ===== 通用灯箱展板（Frame）===== */
.lb-frame {
  position: relative;
  display: block;
  background: var(--frame-bg);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--glow-soft);
  transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s;
}
.lb-frame:hover {
  transform: translateY(-5px);
  border-color: var(--hairline-strong);
  box-shadow: var(--glow-strong);
}
.lb-frame-img {
  position: relative;
  overflow: hidden;
  background: var(--wall-smoke);
}
.lb-frame-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.04) brightness(0.97);
  transition: transform 0.8s var(--ease-out), filter 0.5s;
}
.lb-frame:hover .lb-frame-img img {
  transform: scale(1.06);
  filter: saturate(1.12) contrast(1.06) brightness(1.02);
}
/* 图片四周柔光（灯箱发光感） */
.lb-frame-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 100% at 50% 0%, transparent 60%, rgba(0,0,0,0.35) 100%);
  pointer-events: none;
}

/* 展板说明文字（极少，10%） */
.lb-frame-cap {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--hairline);
}
.lb-frame-kicker {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  margin-bottom: 7px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.lb-frame-kicker::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
}
.lb-frame-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.2px;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.lb-frame:hover .lb-frame-title { color: #ffffff; }

/* ===== Featured Story（大灯箱）===== */
.lb-featured {
  max-width: 1480px;
  margin: 0 auto;
  padding: 56px 32px 0;
}
.lb-featured-frame {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  background: var(--frame-bg);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--glow-soft);
  transition: border-color 0.4s, box-shadow 0.6s;
}
.lb-featured-frame:hover {
  border-color: var(--hairline-strong);
  box-shadow: var(--glow-strong);
}
.lb-featured-img {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  background: var(--wall-smoke);
}
.lb-featured-img img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.06) contrast(1.04);
  transition: transform 0.9s var(--ease-out);
}
.lb-featured-frame:hover .lb-featured-img img { transform: scale(1.04); }
.lb-featured-img::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(120% 100% at 50% 0%, transparent 55%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}
.lb-featured-badge {
  position: absolute; top: 20px; left: 20px;
  font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  padding: 6px 13px; border-radius: 100px;
  background: rgba(6,6,8,0.55);
  border: 1px solid var(--hairline-strong);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
}
.lb-featured-body {
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.lb-featured-kicker {
  font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 16px; color: var(--line-amber);
}
.lb-featured-title {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
}
.lb-featured-excerpt {
  font-size: 14px; line-height: 1.7; color: var(--text-secondary);
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 22px;
}
.lb-featured-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--text-primary);
  transition: gap 0.3s var(--ease-out);
}
.lb-featured-cta:hover { gap: 14px; }
.lb-featured-cta svg { width: 14px; height: 14px; }

/* ===== 双联展板（Duo）===== */
.lb-duo {
  max-width: 1480px;
  margin: 0 auto;
  padding: 44px 32px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.lb-duo .lb-frame-img { aspect-ratio: 16 / 11; }

/* ===== 通栏大图（Wide Feature）===== */
.lb-wide {
  max-width: 1480px;
  margin: 0 auto;
  padding: 44px 32px 0;
}
.lb-wide-frame {
  position: relative;
  display: block;
  height: 420px;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--glow-soft);
  transition: border-color 0.4s, box-shadow 0.6s;
}
.lb-wide-frame:hover { border-color: var(--hairline-strong); box-shadow: var(--glow-strong); }
.lb-wide-frame img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.06) contrast(1.04) brightness(0.92);
  transition: transform 1s var(--ease-out), filter 0.6s;
}
.lb-wide-frame:hover img { transform: scale(1.05); filter: saturate(1.1) brightness(1); }
.lb-wide-frame::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(4,4,6,0.92) 0%, rgba(4,4,6,0.15) 55%, transparent 100%);
  pointer-events: none;
}
.lb-wide-cap {
  position: absolute;
  left: 40px; bottom: 36px; right: 40px;
  z-index: 2;
}
.lb-wide-kicker {
  font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 12px; color: var(--text-secondary);
}
.lb-wide-title {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 800; line-height: 1.1; letter-spacing: -0.6px;
  max-width: 60%;
}

/* ===== 展厅墙（Gallery Wall，深浅交替背景）===== */
.lb-wall {
  margin-top: 8px;
}
.lb-wall--a { background: var(--wall-base); }
.lb-wall--b { background: var(--wall-ash); }
.lb-wall-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 64px 32px 8px;
}
.lb-wall-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hairline);
}
.lb-wall-index {
  font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--text-muted);
}
.lb-wall-title {
  font-size: 22px; font-weight: 800; letter-spacing: -0.4px;
}
.lb-wall-count {
  margin-left: auto;
  font-size: 11px; font-weight: 600; letter-spacing: 0.5px;
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid var(--hairline);
  border-radius: 100px;
}
.lb-wall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 26px;
}
.lb-wall-grid .lb-frame-img { aspect-ratio: 3 / 2; }

/* ===== 页脚 ===== */
.lb-footer {
  background: var(--wall-deep);
  border-top: 1px solid var(--hairline);
  padding: 60px 0 30px;
  margin-top: 72px;
}
.lb-footer-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.lb-footer-brand { display: flex; flex-direction: column; gap: 12px; }
.lb-footer-desc {
  font-size: 13px; line-height: 1.7; color: var(--text-muted); max-width: 300px;
}
.lb-footer-col { display: flex; flex-direction: column; gap: 8px; }
.lb-footer-col-title {
  font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 6px;
}
.lb-footer-col a {
  font-size: 13px; color: var(--text-secondary); transition: color 0.3s;
}
.lb-footer-col a:hover { color: var(--text-primary); }
.lb-footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 22px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-muted);
  max-width: 1480px; margin: 0 auto; padding-left: 32px; padding-right: 32px;
}

/* ===== 进入动画 ===== */
.lb-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.lb-reveal.lb-revealed { opacity: 1; transform: translateY(0); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .lb-featured-frame { grid-template-columns: 1fr; }
  .lb-featured-img { min-height: 300px; }
  .lb-wide-frame { height: 340px; }
  .lb-wall-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
}
@media (max-width: 768px) {
  .lb-nav-links { display: none; }
  .lb-mobile-menu-btn { display: flex; }
  .lb-masthead { padding: 52px 20px 20px; }
  .lb-featured { padding: 40px 20px 0; }
  .lb-duo { grid-template-columns: 1fr; padding: 32px 20px 0; }
  .lb-wide { padding: 32px 20px 0; }
  .lb-wide-frame { height: 280px; }
  .lb-wide-cap { left: 24px; right: 24px; bottom: 24px; }
  .lb-wide-title { max-width: 100%; }
  .lb-wall-inner { padding: 48px 20px 8px; }
  .lb-wall-grid { grid-template-columns: 1fr; }
  .lb-footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .lb-nav-inner { padding: 0 16px; }
  .lb-filters { padding: 16px 16px 0; }
  .lb-featured-body { padding: 28px 22px; }
  .lb-footer-bottom { flex-direction: column; gap: 10px; }
}