* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: sans-serif;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  border-bottom: 1px solid #eee;
}
.nav {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: #666;
  align-items: center;
}
.nav .btn-reserve {
  background: #000;
  color: #fff;
  padding: 8px 15px;
  font-size: 12px;
}

/* Footer 基础与 Main */
.site-footer {
  background-color: #000;
  color: #ccc;
  padding: 60px 40px 20px;
  font-size: 13px;
  line-height: 1.5;
}
.footer-container {
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: 40px;
}
.footer-col {
  flex: 1;
}
.footer-left .slogan {
  color: #fff;
  font-size: 16px;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.icon-group {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
}
.box-icon {
  width: 30px;
  height: 30px;
  border: 1px solid #555;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
}
.main-content {
  padding: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ================= 新增：图1 Hero ================= */
.hero {
  display: flex;
  gap: 40px;
  margin-bottom: 60px;
  align-items: center;
}
.hero-text {
  flex: 1;
}
.hero-text h1 {
  font-size: 64px;
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero-sub {
  color: #888;
  font-size: 14px;
  margin-bottom: 10px;
}
.hero-meta {
  color: #999;
  font-size: 12px;
  margin-bottom: 30px;
}
.hero-nav {
  display: flex;
  gap: 15px;
  font-size: 13px;
  color: #666;
  margin-bottom: 30px;
}
.hero-btn {
  display: inline-flex;
  gap: 10px;
}
.p-black {
  background: #000;
  color: #fff;
  padding: 10px 20px;
  font-size: 13px;
}
.p-line {
  border-bottom: 1px solid #000;
  padding: 10px 0;
  font-size: 13px;
}
.hero-img-wrap {
  flex: 1;
  position: relative;
}
.hero-img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}
.img-tag {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(255,255,255,0.8);
  padding: 5px 10px;
  font-size: 12px;
}

/* ================= 新增：图2 常设展厅 ================= */
.halls-section {
  margin-bottom: 60px;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 30px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 15px;
}
.section-title {
  font-size: 36px;
  font-weight: bold;
}
.section-en {
  color: #999;
  font-size: 12px;
}
.exhibition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.exhibition-card {
  background: #fff;
  padding: 30px;
  min-height: 180px;
  position: relative;
}
.card-icon {
  font-size: 24px;
  margin-bottom: 15px;
  opacity: 0.5;
}
.card-title {
  font-size: 18px;
  margin-bottom: 5px;
}
.card-en {
  font-size: 12px;
  color: #999;
}
.card-number {
  position: absolute;
  bottom: 20px;
  left: 30px;
  color: #ccc;
  font-size: 14px;
}
.card-featured {
  background: linear-gradient(135deg, #1a0533, #2d1b69);
  color: #fff;
  grid-column: span 1;
}
.card-featured .card-en,
.card-featured .card-number {
  color: rgba(255,255,255,0.7);
}
.featured-tag {
  border: 1px solid rgba(255,255,255,0.3);
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  margin-bottom: 15px;
}
.featured-tags {
  margin-top: 20px;
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  display: flex;
  gap: 15px;
}

/* ================= 原有+补充：图3 特约展览 ================= */
.exhibition-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 30px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 15px;
}
.exhibition-title {
  font-size: 36px;
  font-weight: bold;
}
.exhibition-en {
  color: #999;
  font-size: 12px;
}
.special-exhibition {
  background: #111;
  color: #fff;
  padding: 60px 40px;
  display: flex;
  gap: 40px;
  margin-bottom: 60px;
}
.special-left {
  flex: 1;
}
.special-left h2 {
  font-size: 36px;
  margin-bottom: 10px;
}
.special-left h3 {
  font-size: 24px;
  font-weight: normal;
  margin-bottom: 30px;
  color: #ccc;
}
.exh-info {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  font-size: 13px;
  color: #aaa;
}
.desc {
  color: #bbb;
  line-height: 1.8;
  margin-bottom: 30px;
  font-size: 14px;
}
.btn-reserve {
  border: 1px solid #555;
  padding: 10px 20px;
  display: inline-block;
  font-size: 13px;
  margin-bottom: 60px;
}
.past-exh {
  margin-top: 40px;
}
.past-title {
  font-size: 12px;
  color: #777;
  display: block;
  margin-bottom: 20px;
}
.past-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 15px;
}
.past-grid img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  filter: grayscale(100%);
}
.past-grid p {
  font-size: 11px;
  color: #888;
  margin-top: 8px;
  line-height: 1.4;
}
.special-right {
  flex: 1;
  position: relative;
}
.img-skew {
  transform: skewX(-5deg);
  overflow: hidden;
  width: 100%;
}
.img-desc {
  font-size: 13px;
  color: #999;
  margin-top: 20px;
  line-height: 1.6;
}

/* ================= 新增：图4 精品赏析 ================= */
.highlights {
  margin-bottom: 60px;
}
.hl-grid {
  display: flex;
  gap: 20px;
}
.hl-main {
  flex: 2;
  position: relative;
}
.hl-main img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}
.hl-main-info {
  position: absolute;
  bottom: 20px;
  left: 20px;
  color: #fff;
}
.hl-main-name {
  font-size: 18px;
  font-weight: bold;
}
.hl-main-meta {
  font-size: 13px;
  opacity: 0.8;
}
.hl-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.hl-item {
  position: relative;
  flex: 1;
}
.hl-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  filter: grayscale(100%);
}
.hl-item-info {
  position: absolute;
  bottom: 15px;
  left: 15px;
  color: #fff;
}
.hl-item-name {
  font-size: 14px;
  font-weight: bold;
}
.hl-item-meta {
  font-size: 12px;
  opacity: 0.8;
}

/* ================= 原有 Footer 细节（已修正方正） ================= */
.footer-col h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 15px;
  font-weight: normal;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: #ccc;
  transition: color 0.3s;
}
.footer-col ul li a:hover {
  color: #fff;
}
.news .date {
  color: #999;
  font-size: 12px;
  display: block;
  margin-bottom: 2px;
}
.news p {
  margin-bottom: 12px;
  color: #ccc;
}
.email-box {
  display: flex;
  margin-bottom: 20px;
}
.email-box input {
  flex: 1;
  padding: 8px 10px;
  background: #222;
  border: 1px solid #444;
  color: #fff;
  outline: none;
}
.email-box button {
  background: #333;
  border: 1px solid #444;
  color: #fff;
  padding: 0 15px;
  cursor: pointer;
}
.group {
  display: flex;
  gap: 20px;
}
.group1, .group2 {
  text-align: center;
}
.p {
  width: 60px;
  height: 60px;
  background: #fff;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 5px;
  font-size: 12px;
}
.footer-bottom {
  border-top: 1px solid #333;
  margin-top: 40px;
  padding-top: 20px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #999;
}
.bottom-links a {
  color: #999;
  margin-left: 15px;
}
.bottom-links a:hover {
  color: #fff;
}

/* 基础响应式 */
@media (max-width: 1024px) {
  .exhibition-grid { grid-template-columns: repeat(2, 1fr); }
  .past-grid { grid-template-columns: repeat(3, 1fr); }
  .special-exhibition { flex-direction: column; }
  .hl-grid { flex-direction: column; }
}
@media (max-width: 768px) {
  .hero { flex-direction: column; }
  .hero-text h1 { font-size: 48px; }
  .exhibition-grid { grid-template-columns: 1fr; }
  .footer-container { flex-direction: column; }
  .nav { display: none; }
}