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

body {
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* ================= Header ================= */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  border-bottom: 1px solid #eee;
}

.logo {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 13px;
}

.btn-reserve {
  border: 1px solid #000;
  padding: 6px 15px;
  font-size: 12px;
}

/* ================= Hero ================= */
.hero {
  display: flex;
  background: #f7f7f7;
  padding: 60px 40px;
  gap: 40px;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-size: 48px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 14px;
  color: #888;
  margin-bottom: 10px;
}

.hero-meta {
  font-size: 12px;
  color: #999;
  margin-bottom: 30px;
}

.hero-nav {
  font-size: 12px;
  color: #666;
  margin-bottom: 40px;
}

.hero-btn {
  display: flex;
  gap: 15px;
}

.p-black {
  background: #000;
  color: #fff;
  padding: 10px 25px;
  font-size: 12px;
}

.p-line {
  border: 1px solid #000;
  padding: 10px 25px;
  font-size: 12px;
}

.hero-img-wrap {
  flex: 1;
  position: relative;
}

.hero-img {
  width: 100%;
  height: 350px;
  object-fit: cover;
}

.img-tag {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(255,255,255,0.8);
  padding: 5px 10px;
  font-size: 11px;
}

/* ================= 常设展厅 ================= */
.halls-section {
  padding: 60px 40px;
}

.section-head {
  display: flex;
  align-items: baseline;
  margin-bottom: 30px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 10px;
}

.section-title {
  font-size: 24px;
  margin-right: 15px;
}

.section-en {
  font-size: 12px;
  color: #999;
}

.exhibition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.exhibition-card {
  background: #fafafa;
  padding: 25px 20px;
  position: relative;
  min-height: 120px;
  /* Figma Icon 占位 */
}
.exhibition-card::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  background: #eee;
  border-radius: 50%;
  margin-bottom: 15px;
}

.card-title {
  font-size: 14px;
  margin-bottom: 5px;
}

.card-en {
  font-size: 11px;
  color: #999;
}

.card-number {
  position: absolute;
  bottom: 15px;
  right: 20px;
  font-size: 14px;
  color: #ccc;
}

.card-featured {
  background: linear-gradient(135deg, #2c1b5e, #4a3f8c);
  color: #fff;
  grid-column: span 3; /* 底部通栏 */
  padding: 30px;
}
.card-featured::before {
  background: rgba(255,255,255,0.2);
}
.card-featured .card-en, .card-featured .card-number {
  color: rgba(255,255,255,0.7);
}

.featured-tag {
  font-size: 11px;
  background: rgba(255,255,255,0.1);
  padding: 3px 8px;
  display: inline-block;
  margin-bottom: 10px;
}

.featured-tags {
  margin-top: 15px;
  display: flex;
  gap: 10px;
  font-size: 11px;
}
.featured-tags span {
  border: 1px solid rgba(255,255,255,0.3);
  padding: 2px 8px;
}

/* ================= 特约展览 (图2核心修复区) ================= */
.special-exhibition {
  display: flex;
  background: #000;
  color: #fff;
  padding: 60px 40px;
  gap: 50px;
  align-items: flex-start;
}

.special-left {
  flex: 0 0 45%;
  max-width: 45%;
}

.special-right {
  flex: 0 0 50%;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.special-left h2 {
  font-size: 36px;
  margin: 10px 0;
  font-weight: bold;
}

.special-left h3 {
  font-size: 18px;
  font-weight: normal;
  margin-bottom: 25px;
}

.exh-info {
  font-size: 12px;
  color: #ccc;
  margin-bottom: 25px;
  display: flex;
  gap: 20px;
}

.desc {
  font-size: 13px;
  line-height: 1.8;
  color: #aaa;
  margin-bottom: 35px;
}

.special-left .btn-reserve {
  border-color: #fff;
  color: #fff;
  margin-bottom: 50px;
  display: inline-block;
}

/* 左侧底部历史展览 */
.past-exh {
  border-top: 1px solid #333;
  padding-top: 20px;
}

.past-title {
  font-size: 11px;
  color: #777;
  display: block;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.past-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr); /* 严格5等宽 */
  gap: 10px;
}

.past-grid > div {
  display: flex;
  flex-direction: column;
  min-width: 0; /* 防挤压 */
}

.past-grid img {
  width: 100%;
  height: 75px;
  object-fit: cover;
  filter: grayscale(100%);
  transition: all 0.4s ease;
}

.past-grid > div:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.past-grid p {
  font-size: 10px;
  color: #999;
  margin-top: 6px;
  line-height: 1.3;
  word-break: break-all;
}

/* 右侧大图（取消倾斜，白底矩形） */
.img-skew {
  background: #fff;
  padding: 15px;
  width: 100%;
  margin-bottom: 20px;
}
.img-skew img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: contain;
}

.img-desc {
  font-size: 12px;
  color: #888;
  text-align: right;
  line-height: 1.6;
  max-width: 100%;
}

/* ================= 精品赏析 ================= */
.highlights {
  padding: 60px 40px;
  background: #fff;
}

.hl-grid {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

.hl-main {
  flex: 2;
  position: relative;
}

.hl-main img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hl-main-info {
  position: absolute;
  bottom: 20px;
  left: 20px;
  color: #fff;
  background: rgba(0,0,0,0.5);
  padding: 10px 15px;
}

.hl-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hl-item {
  position: relative;
  flex: 1;
}

.hl-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.hl-item-info {
  position: absolute;
  bottom: 10px;
  left: 10px;
  color: #fff;
  font-size: 12px;
  background: rgba(0,0,0,0.5);
  padding: 5px 10px;
}

.hl-main-name, .hl-item-name {
  font-weight: bold;
  margin-bottom: 3px;
}

.hl-main-meta, .hl-item-meta {
  font-size: 11px;
  opacity: 0.8;
}

/* ================= Footer ================= */
.site-footer {
  background: #000;
  color: #fff;
  padding: 50px 40px 20px;
  font-size: 13px;
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 14px;
  margin-bottom: 15px;
  color: #ccc;
}

.footer-col p, .footer-col li {
  font-size: 12px;
  color: #888;
  margin-bottom: 8px;
  list-style: none;
}

.slogan {
  margin: 10px 0 20px;
  color: #aaa;
}

.icon-group {
  display: flex;
  gap: 10px;
}

.box-icon {
  width: 20px;
  height: 20px;
  background: #333;
}

.news .date {
  font-size: 11px;
  color: #666;
  display: block;
  margin-top: 10px;
}

.email-box {
  display: flex;
  margin-bottom: 15px;
}

.email-box input {
  flex: 1;
  padding: 8px;
  border: none;
  background: #222;
  color: #fff;
  font-size: 12px;
}

.email-box button {
  background: #333;
  color: #fff;
  border: none;
  padding: 0 15px;
  cursor: pointer;
}

.group {
  display: flex;
  gap: 15px;
}

.group div {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #888;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #666;
}

.bottom-links a {
  margin-left: 15px;
}

/* ================= 响应式 ================= */
@media (max-width: 900px) {
  .hero, .special-exhibition, .hl-grid {
    flex-direction: column;
  }
  .special-left, .special-right {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .exhibition-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-featured {
    grid-column: span 2;
  }
  .past-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}